Lubricating system of gas turbine generator set and gas turbine generator set

Abstract

The utility model discloses a lubricating system of a gas turbine generator set and the gas turbine generator set, and relates to the field of power generation equipment. According to the lubricating system of the gas turbine generator set, the gas turbine generator set comprises a gas turbine, a generator and a gear box; the lubricating system comprises an oil tank, a main oil pump, an emergency oil pump, a first lubricating oil way and a second lubricating oil way, the oil inlet ends of the first lubricating oil way and the second lubricating oil way communicate with an oil outlet of the oil tank, the oil outlet end of the first lubricating oil way communicates with an oil inlet of the oil tank, and the oil outlet end of the second lubricating oil way is connected to the first lubricating oil way. The main oil pump is arranged on the first lubricating oil way. The emergency oil pump is arranged on the second lubricating oil way. The first lubricating oil way is used for being connected with the gas turbine, the generator and the gearbox, and the joint of the second lubricating oil way and the first lubricating oil way is located in the upstream area of the gas turbine, the generator and the gearbox. The problem that normal operation of a lubricating system is affected by oil pump faults can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of power generation equipment, and specifically relates to a lubrication system for a gas turbine generator set and a gas turbine generator set. Background Art

[0002] With the continued development of the global economy and the increasing demand for energy, the market demand for industrial gas turbines is also showing a rapid growth trend. In the industrial production sector, industrial gas turbines have become the power equipment of choice for many companies due to their efficient, stable, and reliable power output. Industrial gas turbines are widely used in industrial production, oil and gas, and aviation due to their high efficiency and reliability, and market demand is gradually increasing.

[0003] After a long period of operation, the oil pump of the lubrication system of the gas turbine in the related technology will fail, resulting in the entire lubrication system being unable to provide good lubrication effect for the gas turbine. At the very least, it will affect the stable operation of the gas turbine, and at worst, it will cause damage to the gas turbine parts and affect its normal operation. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a lubrication system for a gas turbine generator set and a gas turbine generator set, which can solve the problem of oil pump failure affecting the normal operation of the lubrication system.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of the present application provides a lubrication system for a gas turbine generator set, wherein the gas turbine generator set includes a gas turbine, a generator, and a gearbox transmission-connected between the gas turbine and the generator;

[0007] The lubrication system includes an oil tank, a main oil pump, an emergency oil pump, a first lubricating oil circuit and a second lubricating oil circuit, wherein the oil inlet of each of the first lubricating oil circuit and the second lubricating oil circuit is respectively connected to the oil outlet of the oil tank, the oil outlet of the first lubricating oil circuit is connected to the oil inlet of the oil tank, and the oil outlet of the second lubricating oil circuit is connected to the first lubricating oil circuit, the main oil pump is provided in the first lubricating oil circuit, and the emergency oil pump is provided in the second lubricating oil circuit;

[0008] The first lubricating oil circuit is used to be connected to the gas turbine, the generator and the gearbox respectively, and the connection point between the second lubricating oil circuit and the first lubricating oil circuit is located in the upstream area of ​​the gas turbine, the generator and the gearbox.

[0009] In the embodiment of the present application, under normal circumstances, under the action of the main oil pump, the lubricating oil in the oil tank can enter the first lubricating oil circuit and flow from the oil inlet end to the oil outlet end of the first lubricating oil circuit, so as to supply lubricating oil to the gas turbine, generator and gearbox respectively through the first lubricating oil circuit, thereby achieving lubrication of the gas turbine, generator and gearbox, and also having a cooling effect on the gas turbine, generator and gearbox. When the main oil pump is abnormal, the emergency oil pump is started. Under the action of the emergency oil pump, the lubricating oil in the oil tank can enter the second lubricating oil circuit and flow into the first lubricating oil circuit through the oil outlet end of the second lubricating oil circuit, and supply lubricating oil to the gas turbine, generator and gearbox respectively through the first lubricating oil circuit to achieve lubrication and cooling. Therefore, the embodiment of the present application can ensure the uninterrupted operation of the lubrication system through the coordinated cooperation of the main oil pump and the auxiliary oil pump, and further ensure the stable operation of the gas turbine generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the lubrication system disclosed in an embodiment of the present application being connected to a gas turbine, a generator, and a gearbox;

[0011] Figure 2 A schematic diagram of a vehicle body disclosed in an embodiment of the present application;

[0012] Figure 3 A schematic diagram of a first vehicle body disclosed in an embodiment of the present application;

[0013] Figure 4 This is a schematic diagram of the second vehicle body disclosed in an embodiment of the present application.

[0014] Description of reference numerals:

[0015] 01-Gas turbine; 02-Generator; 03-Gearbox; 04-Lubrication system; 05-First vehicle body; 06-Second vehicle body; 0611-First air intake filter; 0612-Second air intake filter; 0613-Third air intake filter; 0614-Turbine air intake filter; 0615-Generator air intake filter; 062-Gooseneck; 071-First air pipe; 072-Second air pipe; 073-Third air pipe;

[0016] 11- fuel tank; 111- heater; 112- temperature sensor;

[0017] 121-main oil pump; 122-emergency oil pump;

[0018] 131 - first lubricating oil circuit; 132 - second lubricating oil circuit; 133 - third lubricating oil circuit; 134 - fourth lubricating oil circuit;

[0019] 141-pressure regulating valve; 142-check valve;

[0020] 151-Double filter; 152-Lubricating oil pressure differential sensor; 153-Detection circuit;

[0021] 16-thermostat; 161-first oil inlet port; 162-second oil inlet port; 163-oil outlet port;

[0022] 171 - first radiator; 172 - second radiator. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0025] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0026] refer to Figures 1 to 4 The present embodiment discloses a lubrication system 04 for a gas turbine generator set. The disclosed gas turbine generator set includes a gas turbine 01, a generator 02, a gearbox 03, and a lubrication system 04. Gas turbine 01 is a power component that provides power to generator 02, thereby driving generator 02 to operate and generate electricity. Generator 02 can convert kinetic energy into electrical energy for output. Gearbox 03 is connected between gas turbine 01 and generator 02 to achieve power and motion transmission. Lubrication system 04 is used to provide lubricating oil to at least components such as gas turbine 01 and generator 02, ensuring that these components are fully lubricated, reducing wear, and ensuring normal operation of these components.

[0027] Among them, the lubrication system 04 can include a lubrication path, and components such as the gas turbine 01 and the generator 02 can be arranged in the lubrication path, so as to supply lubricating oil to at least the gas turbine 01 and the generator 02 through the lubrication path to achieve lubrication of components such as the gas turbine 01 and the generator 02.

[0028] refer to Figure 1 The lubrication path may include the oil tank 11, the main oil pump 121, the emergency oil pump 122, the first lubricating oil circuit 131, and the second lubricating oil circuit 132. The oil inlets of the first lubricating oil circuit 131 and the second lubricating oil circuit 132 are respectively connected to the oil outlet of the oil tank 11. The oil outlet of the first lubricating oil circuit 131 is connected to the oil inlet of the oil tank 11, and the oil outlet of the second lubricating oil circuit 132 is connected to the first lubricating oil circuit 131. The main oil pump 121 is provided in the first lubricating oil circuit 131, and the emergency oil pump 122 is provided in the second lubricating oil circuit 132. In addition, the first lubricating oil circuit 131 is used to connect to the gas turbine 01, the generator 02, and the gearbox 03 respectively, and the connection point between the second lubricating oil circuit 132 and the first lubricating oil circuit 131 is located in the downstream area of ​​the gas turbine 01, the generator 02, and the gearbox 03.

[0029] Based on the above arrangement, under the action of the main oil pump 121, the lubricating oil in the oil tank 11 can enter the first lubricating oil circuit 131 and flow from the oil inlet end to the oil outlet end of the first lubricating oil circuit 131. Under the action of the emergency oil pump 122, the lubricating oil in the oil tank 11 can enter the second lubricating oil circuit 132 and flow into the first lubricating oil circuit 131 through the oil outlet end of the second lubricating oil circuit 132. Based on this, lubricating oil can be supplied to the gas turbine 01, generator 02, and gearbox 03 respectively through the first lubricating oil circuit 131, achieving lubrication and cooling effects on the gas turbine 01, generator 02, and gearbox 03.

[0030] It should be noted that under normal circumstances, the main oil pump 121 can be activated to supply lubricating oil to the gas turbine 01, generator 02, and gearbox 03 through the first lubricating oil passage 131, thereby achieving lubrication and cooling for each of the three. If the main oil pump 121 fails, the emergency oil pump 122 can be activated to deliver lubricating oil to the first lubricating oil passage 131 through the second lubricating oil passage 132, thereby supplying lubricating oil to the gas turbine 01, generator 02, and gearbox 03 through the first lubricating oil passage 131, thereby achieving lubrication and cooling for each of the three. Therefore, the coordinated operation of the main oil pump and the auxiliary oil pump ensures uninterrupted operation of the lubrication system 04, further ensuring stable operation of the gas turbine generator set.

[0031] Continue to refer Figure 1In some embodiments, the lubrication system 04 may further include pressure regulating valves 141 for the third lubricating oil circuit 133 and the fourth lubricating oil circuit 134. One end of the third lubricating oil circuit 133 is connected to the first lubricating oil circuit 131, and the other end of the third lubricating oil circuit 133 is connected to the oil tank 11. The pressure regulating valve 141 is disposed in the third lubricating oil circuit 133. With this configuration, opening the pressure regulating valve 141 allows the lubricating oil in the first lubricating oil circuit 131 to flow back into the oil tank 11 via the third lubricating oil circuit 133, thereby reducing the pressure in the first lubricating oil circuit 131. Furthermore, varying the opening degree of the pressure regulating valve 141 can change the flow rate of the returning lubricating oil, thereby adjusting the flow rate of the lubricating oil in the first lubricating oil circuit 131 according to actual needs, thereby regulating the pressure in the first lubricating oil circuit 131.

[0032] One end of the fourth lubricating oil passage 134 is connected to the pressure regulating valve 141, and the other end of the fourth lubricating oil passage 134 is connected to the first lubricating oil passage 131. The junction between the fourth lubricating oil passage 134 and the first lubricating oil passage 131 is located upstream of the junction between the second lubricating oil passage 132 and the first lubricating oil passage 131. Based on this configuration, opening the pressure regulating valve 141 allows the lubricating oil in the first lubricating oil passage 131 to flow through the fourth lubricating oil passage 134 to the pressure regulating valve 141, and then flow back to the oil tank 11 through the third lubricating oil passage 133, thereby reducing the pressure in the first lubricating oil passage 131. At the same time, varying the opening degree of the pressure regulating valve 141 can change the flow rate of the returning lubricating oil, thereby adjusting the flow rate of the lubricating oil in the first lubricating oil passage 131 according to actual needs, thereby adjusting the pressure in the first lubricating oil passage 131.

[0033] In addition, the pressure regulating valve 141 can also function as a safety valve to a certain extent to improve the safety of the lubrication system 04 .

[0034] It should be noted that the third lubricating oil passage 133 and the fourth lubricating oil passage 134 each connect to the first lubricating oil passage 131 at different locations. For example, the connection between the third lubricating oil passage 133 and the first lubricating oil passage 131 may be close to the main oil pump 121, i.e., at the downstream end, while the connection between the fourth lubricating oil passage 134 and the first lubricating oil passage 131 may be far from the main oil pump 121, i.e., at the upstream end.

[0035] In some more specific embodiments, when a heat dissipation component is connected to the first lubricating oil circuit 131, the connection between the third lubricating oil circuit 133 and the first lubricating oil circuit 131 can be located in the upstream area of ​​the heat dissipation component, and the connection between the fourth lubricating oil circuit 134 and the first lubricating oil circuit 131 can be located in the downstream area of ​​the heat dissipation component.

[0036] In some embodiments, the lubrication system 04 may further include a check valve 142, which may be disposed in the first lubricating oil circuit 131, upstream of the junction of the second lubricating oil circuit 132 and the first lubricating oil circuit 131. With this arrangement, if the main oil pump 121 fails and the emergency oil pump 122 is activated, the check valve 142 can block the lubricating oil from the second lubricating oil circuit 132 from entering the first lubricating oil circuit 131, effectively preventing the lubricating oil from flowing back along the first lubricating oil circuit 131 and ensuring good lubrication of the gas turbine 01, the generator 02, and the gearbox 03.

[0037] In other embodiments, the check valve 142 may be located at other positions, such as near the oil outlet of the main oil pump 121 in the first lubricating oil passage 131 to prevent the lubricating oil from flowing back to the main oil pump when the main oil pump 121 is shut down.

[0038] The check valve 142 may also be provided in the second lubricating oil passage 132 near the oil outlet of the emergency oil pump 122 to prevent the lubricating oil in the first lubricating oil passage 131 from flowing back to the emergency oil pump 122 via the second lubricating oil passage 132 .

[0039] In some embodiments, the lubrication system 04 may further include a duplex filter 151, a lubricating oil differential pressure sensor 152, and a detection circuit 153. The duplex filter 151 may be disposed in the first lubricating oil circuit 131, one end of the detection circuit 153 is connected to a region of the first lubricating oil circuit 131 upstream of the duplex filter 151, and the other end of the detection circuit 153 is connected to a region of the first lubricating oil circuit 131 downstream of the duplex filter 151. The lubricating oil differential pressure sensor 152 is disposed in the detection circuit 153.

[0040] Based on the above settings, the lubricating oil pressure differential sensor 152 can detect the pressure difference at both ends of the double filter 151 in real time. When the double filter 151 is in normal condition, the pressure difference between the upstream area and the downstream area of ​​the double filter 151 detected by the lubricating oil pressure differential sensor 152 does not exceed the preset pressure difference; when the detected pressure difference exceeds the preset pressure difference, it indicates that the double filter 151 is blocked, faulty, etc., which can serve as a reminder for the staff to ensure the normal operation of the lubrication system 04.

[0041] In some embodiments, the lubrication system 04 may further include a thermostat 16 and a heat sink assembly. The thermostat 16 has a first oil inlet port 161, a second oil inlet port 162, and an oil outlet port 163. The first oil inlet port 161 communicates with the oil outlet of the heat sink assembly, the second oil inlet port 162 communicates with the upstream section of the first lubricating oil circuit 131, and the oil outlet port 163 communicates with the downstream section of the first lubricating oil circuit 131. The oil inlet of the heat sink assembly communicates with the upstream section of the first lubricating oil circuit 131.

[0042] Based on the above configuration, the lubricating oil in the first lubricating oil passage 131 can flow into the thermostat 16 and the heat sink assembly, respectively. Specifically, when the lubricating oil temperature is relatively low (e.g., below the set temperature of the thermostat 16), the lubricating oil does not need to be cooled by the heat sink assembly, allowing the lubricating oil to pass directly through the thermostat 16 and flow downstream through the first lubricating oil passage 131. When the lubricating oil temperature is relatively high (e.g., above the set temperature of the thermostat 16), the lubricating oil needs to be cooled by the heat sink assembly, allowing the lubricating oil to enter the heat sink assembly, dissipate heat through the heat sink assembly, and cool the lubricating oil. The cooled lubricating oil is then transported downstream again through the first lubricating oil passage 131.

[0043] In some more specific embodiments, the thermostat 16 may be disposed in an upstream region of the duplex filter 151 .

[0044] In some embodiments, the heat dissipation assembly may include a first radiator 171, which is disposed at the gas outlet of the gas turbine 01 and is in communication with the first lubricating oil passage 131. Thus, heat can be dissipated to the gas outlet of the gas turbine 01 via the first radiator 171 to alleviate ice formation at the gas outlet of the gas turbine 01 that could affect normal gas delivery of the gas turbine 01.

[0045] Among them, such as Figure 4 As shown, the gas supply port may include a first air intake filter port 0611, a second air intake filter port 0612, and a third air intake filter port 0613; accordingly, the gas turbine generator set may also include a vehicle body for carrying the gas turbine 01, the generator 02, and the gearbox 03, and the first air intake filter port 0611, the second air intake filter port 0612, and the third air intake filter port 0613 may all be arranged on the vehicle body.

[0046] Specifically, a first air intake filter port 0611 may be provided on one side of the vehicle body (e.g., the driver's side), a second air intake filter port 0612 may be provided on the other side of the vehicle body (e.g., the passenger side), and a third air intake filter port 0613 may be provided at the rear of the vehicle body; the first radiator 171 may be provided at at least one of the first air intake filter port 0611, the second air intake filter port 0612 and the third air intake filter port 0613, so as to dissipate heat to at least one air intake filter port to prevent at least one air intake filter port from freezing and affecting the normal air intake of the vehicle body.

[0047] like Figure 4 As shown, the gas delivery port may also include a combustion engine air inlet filter 0614 and a generator air inlet filter 0615. Accordingly, the first radiator 171 may also be disposed at at least one of the combustion engine air inlet filter 0614 and the generator air inlet filter 0615. Based on this arrangement, heat can be dissipated from the first radiator 171 to at least one of the combustion engine air inlet filter 0614 and the generator air inlet filter 0615, thereby preventing ice from forming on at least one of the air inlet filters and thus affecting normal air flow into the vehicle.

[0048] Optionally, the vehicle body may include a first vehicle body 05 and a second vehicle body 06, such as Figure 2 As shown, the first vehicle body 05 can be used to carry the gas turbine 01, the generator 02 and the gearbox 03, while the second vehicle body 06 can be used to carry the air intake and wind intake system, so as to realize the air intake and ventilation of the gas turbine generator set through the air intake and wind intake system.

[0049] refer to Figure 2 The first air intake filter 0611, the second air intake filter 0612, the third air intake filter 0613, the combustion turbine air intake filter 0614, and the generator air intake filter 0615 can all be located on the second vehicle body 06. A fan can be provided on the second vehicle body 06 to allow air and wind to enter. Furthermore, the second vehicle body 06 and the first vehicle body 05 can be connected via a pipeline. The pipeline can include a first air pipe 071, a second air pipe 072, and a third air pipe 073. The first air pipe 071 is used to deliver air required for intake to the gas turbine 01, the second air pipe 072 is used to deliver air required for ventilation to the combustion turbine, and the third air pipe 073 is used to deliver air required for ventilation to the generator 02, thereby achieving air intake for the gas turbine 01, ventilation and heat dissipation for the gas turbine 01, and ventilation and heat dissipation for the generator 02, respectively.

[0050] refer to Figure 4In some embodiments, the heat dissipation assembly may further include a second radiator 172, which is positioned at the gooseneck 062 of the vehicle body. The second radiator 172 communicates with the first lubricating oil passage 131, allowing lubricating oil to be transported to the second radiator 172 via the first lubricating oil passage 131. Heat is then dissipated outward through the second radiator 172 to prevent the lubricating oil from overheating. A curved support plate may be provided at one end of the vehicle body, primarily for connection and load-bearing purposes. This plate may be considered the gooseneck 062 of the vehicle body. In some specific embodiments, the gooseneck 062 may have a Z-shaped longitudinal cross-section.

[0051] It should be noted here that the temperature of the lubricating oil in the first lubricating oil circuit 131 near the gas turbine 01, the generator 02 and the gearbox 03 can be detected in real time. When the temperature of the lubricating oil does not exceed the preset oil temperature, the lubricating oil can be mainly transported to the first radiator 171 through the first lubricating oil circuit 131 to dissipate heat through the first radiator 171 and prevent icing. When the temperature of the lubricating oil is higher than the preset oil temperature, the lubricating oil can be simultaneously transported to the first radiator 171 and the second radiator 172 through the first lubricating oil circuit 131, so that the heat can be dissipated through the first radiator 171 and the second radiator 172 respectively, so as to prevent the lubricating oil temperature from being too high and affecting the lubricant heat dissipation effect on the gas turbine 01, the generator 02 and the gearbox 03.

[0052] In addition, since the second radiator 172 is arranged at the gooseneck 062 of the vehicle body, the second radiator 172 is arranged in the open air, so that the heat emitted by the second radiator 172 can be quickly taken away by the external air flow, thereby improving the heat dissipation efficiency.

[0053] When the gas turbine generator set is just started, the temperature of the gas turbine 01, the generator 02 and the gear box 03 is low and the lubrication effect is poor. In this case, in order to ensure that the lubricating oil can achieve a good lubrication effect, in the embodiment of the present application, the lubrication system 04 may further include a heater 111, such as Figure 1 As shown, the heater 111 is disposed in the oil tank 11. Therefore, when the gas turbine generator set is initially started, the heater 111 can heat the lubricating oil in the oil tank 11 to a certain temperature. In this case, the lubricating oil at a certain temperature can be delivered to the gas turbine 01, the generator 02, and the gearbox 03 via the lubrication system 04. This can achieve good lubrication and warming effects for the gas turbine 01, the generator 02, and the gearbox 03 during the startup phase, thereby alleviating the problem of component wear during the cold start process.

[0054] Furthermore, the lubrication system 04 may further include a temperature sensor 112, such as Figure 1As shown, the temperature sensor 112 is arranged in the oil tank 11. In this way, the temperature of the lubricating oil in the oil tank 11 can be monitored in real time through the temperature sensor 112 to prevent the temperature from being too high or too low, thereby ensuring good lubrication of the gas turbine 01, the generator 02 and the gear box 03 and achieving good heat dissipation of the gas turbine 01, the generator 02 and the gear box 03.

[0055] Based on the above-mentioned lubrication system 04 , an embodiment of the present application further discloses a gas turbine generator set, and the disclosed gas turbine generator set includes the above-mentioned lubrication system 04 .

[0056] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A lubrication system for a gas turbine generator set, characterized in that: The gas turbine generator set comprises a gas turbine (01), a generator (02), and a gear box (03) transmission-connected between the gas turbine (01) and the generator (02); The lubrication system (04) comprises an oil tank (11), a main oil pump (121), an emergency oil pump (122), a first lubricating oil circuit (131), and a second lubricating oil circuit (132); the oil inlet ends of the first lubricating oil circuit (131) and the second lubricating oil circuit (132) are respectively connected to the oil outlet of the oil tank (11); the oil outlet end of the first lubricating oil circuit (131) is connected to the oil inlet of the oil tank (11); the oil outlet end of the second lubricating oil circuit (132) is connected to the first lubricating oil circuit (131); the main oil pump (121) is provided in the first lubricating oil circuit (131), and the emergency oil pump (122) is provided in the second lubricating oil circuit (132); The first lubricating oil circuit (131) is used to be connected to the gas turbine (01), the generator (02) and the gear box (03) respectively, and the connection point between the second lubricating oil circuit (132) and the first lubricating oil circuit (131) is located in the upstream area of ​​the gas turbine (01), the generator (02) and the gear box (03).

2. The lubrication system according to claim 1, characterized in that The lubrication system (04) further includes a third lubrication oil circuit (133), a fourth lubrication oil circuit (134), and a pressure regulating valve (141); One end of the third lubricating oil circuit (133) is in communication with the first lubricating oil circuit (131), and the other end of the third lubricating oil circuit (133) is in communication with the oil tank (11); The pressure regulating valve (141) is provided in the third lubricating oil circuit (133); One end of the fourth lubricating oil circuit (134) is connected to the pressure regulating valve (141), and the other end of the fourth lubricating oil circuit (134) is connected to the first lubricating oil circuit (131), and the connection point between the fourth lubricating oil circuit (134) and the first lubricating oil circuit (131) is located in the upstream area of ​​the connection point between the second lubricating oil circuit (132) and the first lubricating oil circuit (131).

3. The lubrication system according to claim 1, characterized in that The lubrication system (04) further includes a check valve (142); The check valve (142) is provided in the first lubricating oil circuit (131) and is located in an upstream area of ​​a junction between the second lubricating oil circuit (132) and the first lubricating oil circuit (131).

4. The lubrication system according to claim 1, characterized in that The lubrication system (04) further includes a duplex filter (151), a lubricating oil differential pressure sensor (152), and a detection circuit (153); The duplex filter (151) is provided in the first lubricating oil passage (131); One end of the detection circuit (153) is connected to a region of the first lubricating oil circuit (131) located upstream of the duplex filter (151), and the other end of the detection circuit (153) is connected to a region of the first lubricating oil circuit (131) located downstream of the duplex filter (151); The lubricating oil pressure difference sensor (152) is provided in the detection circuit (153).

5. The lubrication system according to claim 1 or 4, characterized in that: The lubrication system (04) further includes a thermostat (16) and a heat dissipation component; The thermostat (16) has a first oil inlet port (161), a second oil inlet port (162), and an oil outlet port (163); the first oil inlet port (161) is in communication with the oil outlet of the heat dissipation component; the second oil inlet port (162) is in communication with the upstream section of the first lubricating oil circuit (131); and the oil outlet port (163) is in communication with the downstream section of the first lubricating oil circuit (131); The oil inlet of the heat dissipation component is in communication with the upstream section of the first lubricating oil circuit (131).

6. The lubrication system according to claim 5, characterized in that The heat dissipation assembly comprises a first radiator (171), and the first radiator (171) is used to be arranged at the gas output port of the gas turbine (01).

7. The lubrication system according to claim 6, characterized in that The gas turbine generator set further comprises a vehicle body for carrying the gas turbine (01), the generator (02) and the gearbox (03); A first air intake filter port (0611) is provided on one side of the vehicle body, a second air intake filter port (0612) is provided on the other side of the vehicle body, and a third air intake filter port (0613) is provided at the rear of the vehicle body, and the first radiator (171) is used to be arranged at at least one of the first air intake filter port (0611), the second air intake filter port (0612), and the third air intake filter port (0613); Alternatively, the vehicle body is provided with a combustion engine air inlet filter (0614) and a generator air inlet filter (0615), and the first radiator (171) is used to be arranged at at least one of the combustion engine air inlet filter (0614) and the generator air inlet filter (0615).

8. The lubrication system according to claim 5, characterized in that: The gas turbine generator set further comprises a vehicle body for carrying the gas turbine (01), the generator (02) and the gearbox (03); The heat dissipation assembly comprises a second radiator (172), and the second radiator (172) is used to be arranged at the gooseneck (062) of the vehicle body.

9. The lubrication system according to claim 1, characterized in that The lubrication system (04) further includes a heater (111), and the heater (111) is arranged in the oil tank (11); And / or, the lubrication system (04) further includes a temperature sensor (112), and the temperature sensor (112) is arranged in the oil tank (11).

10. A gas turbine generator set, characterized in that: A lubrication system (04) comprising the lubrication system according to any one of claims 1 to 9.

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