Black-start pump skid for marine generator set

Abstract

The utility model discloses a black-start pump skid for a marine generator set, and relates to the technical field of auxiliary starting of generator sets. A pneumatic pipeline is arranged on one side of the top end of the base and comprises an electromagnetic valve, a pump unit is arranged at the top end of the base and comprises a pneumatic motor and a pump body, the electromagnetic valve is connected with the pneumatic motor, and a medium conveying pipeline is arranged on the side, away from the pneumatic pipeline, of the top end of the base. And the pneumatic motor is used for driving the pump body to convey a medium in the medium conveying pipeline. Air in the air bottle of the ship body is processed through the pneumatic pipeline and connected with the pneumatic motor, pressure energy of compressed air is converted into mechanical energy through the pneumatic motor, the mechanical energy is supplied to the pump body connected with the pneumatic motor, and the pump body obtains power to drive media in the medium conveying pipeline connected with the pump body. Therefore, the purpose of stably conveying power fuel oil to the generator is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of generator set auxiliary starting technology, and specifically relates to a black start pump skid for marine generator sets. Background Technology

[0002] In the manufacturing and production of existing ships, the design requirements for ship safety are becoming increasingly stringent. According to the design specifications, it is necessary to consider the ability to restore the entire ship's power grid in the event of a power outage or ship malfunction. In this process, the restoration of the generator sets on the hull is particularly important. The prerequisite for the generator sets to resume power generation is to ensure that the fuel inlet of the generator has a certain supply pressure in order to achieve continuous fuel supply and power generation for the generator sets.

[0003] Currently, existing technologies involve raising the height of the generator set's fuel tank to create pressure at the fuel inlet through the weight of the fuel itself; another approach is to use an emergency power source to drive the fuel pump and deliver fuel to the generator set.

[0004] The shortcomings of the above technical solutions are as follows: although lifting the fuel tank can solve the problem of generator fuel inlet pressure, the limited space in the ship's cabin makes it difficult to lift the fuel tank, and the pressure is relatively unstable due to the amount of fuel remaining in the tank; if an emergency power supply is used, a DC motor needs to be configured, which occupies a large space during use and is relatively easy to be damaged. In other words, the existing solutions all require a large amount of space in the ship's hull and are extremely unstable during use.

[0005] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0006] The purpose of this utility model is to provide a black start pump skid for marine generator sets. The technical problem to be solved is as follows: Existing auxiliary generator set starting schemes all require a large space inside the ship and have poor stability.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A black start pump skid for a marine generator set includes a base, a pneumatic pipeline with a solenoid valve on one side of the top of the base, a pump unit with a pneumatic motor and a pump body on the top of the base, the solenoid valve being connected to the pneumatic motor, and a medium delivery pipeline on the side of the top of the base away from the pneumatic pipeline. The pneumatic motor is used to drive the pump body to deliver the medium in the medium delivery pipeline.

[0009] As a further embodiment of this utility model: the base includes oil discharge ports respectively disposed on both sides, a number of lifting lugs are evenly fixedly connected to the top of the base on the side, two liquid pipe supports are fixedly connected to one side of the top of the base, and an air pipe support is fixedly connected to the side away from the two liquid pipe supports.

[0010] As a further embodiment of this utility model: the pneumatic pipeline also includes a pneumatic triplet installed on the top of the air pipe support, an air inlet valve is connected to one side of the pneumatic triplet, and the solenoid valve is installed on the side of the pneumatic triplet away from the air inlet valve.

[0011] As a further embodiment of this utility model: the pump unit also includes a support frame installed at the bottom of the pneumatic motor, the bottom of the support frame being fixedly connected to the pump body, and the bottom surface of the pump body being fixedly connected to the top of the base.

[0012] As a further embodiment of this utility model: the medium conveying pipeline includes a pressure gauge assembly installed on both sides of the pump body, the pressure gauge assembly includes an inlet pressure gauge and an outlet pressure gauge, the liquid inlet end of the pump body is connected to the inlet pressure gauge, and the liquid outlet end is connected to the outlet pressure gauge.

[0013] As a further embodiment of this utility model: the medium conveying pipeline also includes an inlet short pipe and an outlet short pipe fixedly connected to two liquid pipe supports. The adjacent ends of the inlet short pipe and the outlet short pipe are both connected to the pump body. An inlet gate valve is installed on the side of the inlet short pipe away from the inlet pressure gauge, and an outlet gate valve is installed on the side of the outlet short pipe away from the outlet pressure gauge.

[0014] The beneficial effects of this utility model are:

[0015] By rationally arranging the installation space on the base, the pump unit, medium delivery pipeline, and pneumatic pipeline are installed as one unit. The air in the ship's air cylinder is processed by the pneumatic pipeline and connected to the pneumatic motor. The pneumatic motor converts the compressed air pressure energy into mechanical energy and supplies it to the pump body connected to it. The pump body obtains power to drive the medium in the medium delivery pipeline connected to it, thereby realizing the function of stably delivering power fuel to the generator. The whole process is stable and convenient, and the overall space occupied by the skid is small and easy to move. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Base; 11. Oil discharge port; 12. Lifting lug; 13. Liquid pipe support; 14. Air pipe support; 2. Pump unit; 21. Pneumatic motor; 22. Support frame; 23. Pressure gauge assembly; 231. Inlet pressure gauge; 232. Outlet pressure gauge; 24. Pump body; 3. Medium delivery pipeline; 31. Inlet gate valve; 32. Inlet short pipe; 33. Outlet short pipe; 34. Outlet gate valve; 4. Pneumatic pipeline; 41. Inlet valve; 42. Pneumatic triplet; 43. Solenoid valve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] like Figure 1 As shown, a black start pump skid for a marine generator set includes a base 1. A pneumatic pipeline 4 is provided on one side of the top of the base 1. The pneumatic pipeline 4 includes a solenoid valve 43. A pump unit 2 is provided on the top of the base 1. The pump unit 2 includes a pneumatic motor 21 and a pump body 24. The pump body 24 is preferably a three-screw pump. The solenoid valve 43 is connected to the pneumatic motor 21. A medium delivery pipeline 3 is provided between the side of the top of the base 1 away from the pneumatic pipeline 4 and the pump body 24. The pneumatic motor 21 is used to drive the pump body 24 to deliver the medium in the medium delivery pipeline 3. In particular, the medium delivered is fuel required by the generator set.

[0021] The base 1 includes two oil discharge ports 11 on both sides for discharging residual media. A total of four lifting lugs 12 are fixedly connected to the top of the base 1 on both sides. Each lifting lug 12 has a lifting hole on its top for lifting the entire starting skid. Two liquid pipe supports 13 are fixedly connected to one side of the top of the base 1 to match the liquid inlet and outlet positions of the entire pneumatic pipeline 4. A pneumatic pipe support 14 is fixedly connected to the side away from the two liquid pipe supports 13. The liquid pipe supports 13 and the pneumatic pipe support 14 are used to install the media conveying pipeline 3 and the pneumatic pipeline 4, respectively.

[0022] The pneumatic pipeline 4 includes a pneumatic triplet 42 installed at the top of the air pipe support 14. The pneumatic triplet 42 is used to pre-treat the air supplied to the pneumatic motor 21, specifically by drying and pressure regulation, so that the air quality and pressure value entering the pneumatic motor 21 can be continuously and stably supplied to the pump body 24. One side of the pneumatic triplet 42 is connected to the air inlet valve 41 through the air pipe. The air inlet valve 41 is connected to the air source section. The entry and exit of the initial air source is controlled by the opening and closing of the air inlet valve 41. The solenoid valve 43 is installed on the side of the pneumatic triplet 42 away from the air inlet valve 41 through the air pipe. The solenoid valve 43 is used to control the opening and closing of the treated air path, thereby realizing the control of the air supply to the pneumatic motor 21.

[0023] Pump unit 2 includes a support frame 22 installed at the bottom of pneumatic motor 21. The bottom surface of the support frame 22 is fixedly connected to the pump body 24, and the bottom surface of the pump body 24 is fixedly connected to the base 1. After processing the air, the pneumatic triplet 42 sends compressed air to the pneumatic motor 21 through the solenoid valve 43. The pneumatic motor 21 converts the pressure energy of the compressed air into the mechanical energy of its internal rotation and applies the mechanical energy to the pump body 24 connected to it through the support frame 22, thereby completing the power supply to the medium in the medium conveying pipeline 3 connected to the pump body 24.

[0024] Furthermore, the preferred three-screw pump of the pump body 24 is a positive displacement rotary pump. During operation, the rotation of the active screw will drive the driven screw meshing with it to rotate synchronously. As the screw rotates, the screw meshing space volume at one end of the suction chamber gradually increases and the pressure decreases. Therefore, the liquid enters the meshing space volume under the action of pressure difference, and the liquid is sucked and discharged by the rotation of the screw. The mechanical energy converted by the pneumatic motor 21 acts on the active screw inside.

[0025] The medium delivery pipeline 3 includes a pressure gauge assembly 23 installed on both sides of the pump body 24. The pressure gauge assembly 23 includes an inlet pressure gauge 231 and an outlet pressure gauge 232. The inlet end of the pump body 24 is connected to the inlet pressure gauge 231, and the outlet end of the pump body 24 is connected to the outlet pressure gauge 232. Specifically, the inlet pressure gauge 231 is used to monitor the inlet hydraulic pressure of the three-screw pump, and the outlet pressure gauge 232 is used to monitor the outlet hydraulic pressure of the three-screw pump. The operator monitors whether the delivery process is normal by reading the data of the inlet pressure gauge 231 and the outlet pressure gauge 232.

[0026] The medium conveying pipeline 3 also includes an inlet short pipe 32 and an outlet short pipe 33 fixedly connected to two liquid pipe supports 13. Both the inlet short pipe 32 and the outlet short pipe 33 are connected to the pump body 24. That is, the inlet short pipe 32 is connected to the liquid inlet end of the pump body 24, and the outlet short pipe 33 is connected to the liquid outlet end of the pump body 24. An inlet gate valve 31 is installed on the side of the inlet short pipe 32 away from the inlet pressure gauge 231, and an outlet gate valve 34 is installed on the side of the outlet short pipe 33 away from the outlet pressure gauge 232. The two gate valves are used for on / off control at the inlet and outlet during the medium conveying process.

[0027] It should be noted that the marine generator set fuel black start pump skid treats the air in the ship's air cylinder through the pneumatic pipeline 4 and connects to the pneumatic motor 21. The pneumatic motor 21 converts the compressed air pressure energy into mechanical energy and supplies it to the pump body 24 connected to it. After the pump body 24 obtains power, it drives the medium in the medium delivery pipeline 3 connected to it. The fuel, as the delivery medium, can be stably delivered to the generator. This process is stable and convenient, and the entire skid occupies little space. It is also easy to move using the lifting lug 12. Specifically, during the operation of the pump body 24, the fuel medium is delivered from the fuel tank to the fuel inlet of the diesel engine.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A marine generator set black start pump skid comprising a base (1), characterized in that, A pneumatic pipeline (4) is provided on one side of the top of the base (1). The pneumatic pipeline (4) includes a solenoid valve (43). A pump unit (2) is provided on the top of the base (1). The pump unit (2) includes a pneumatic motor (21) and a pump body (24). The solenoid valve (43) is connected to the pneumatic motor (21). A medium conveying pipeline (3) is provided on the side of the top of the base (1) away from the pneumatic pipeline (4). The pneumatic motor (21) is used to drive the pump body (24) to convey the medium in the medium conveying pipeline (3).

2. A black start pump skid for a marine generator set according to claim 1, characterized in that The base (1) includes an oil discharge port (11) respectively disposed on both sides. Several lifting lugs (12) are evenly fixedly connected to the top of the base (1) on the side. Two liquid pipe supports (13) are fixedly connected to one side of the top of the base (1), and a gas pipe support (14) is fixedly connected to the side away from the two liquid pipe supports (13).

3. A black start pump skid for a marine generator set according to claim 2, characterized in that The pneumatic pipeline (4) also includes a pneumatic triplet (42) installed on the top of the air pipe support (14). An air inlet valve (41) is connected to one side of the pneumatic triplet (42), and the solenoid valve (43) is installed on the side of the pneumatic triplet (42) away from the air inlet valve (41).

4. A black start pump skid for a marine generator set as claimed in claim 1, wherein, The pump unit (2) also includes a support frame (22) installed at the bottom of the pneumatic motor (21). The bottom of the support frame (22) is fixedly connected to the pump body (24), and the bottom surface of the pump body (24) is fixedly connected to the top of the base (1).

5. A black start pump skid for a marine generator set as claimed in claim 1, wherein, The medium delivery pipeline (3) includes a pressure gauge assembly (23) installed on both sides of the pump body (24). The pressure gauge assembly (23) includes an inlet pressure gauge (231) and an outlet pressure gauge (232). The inlet end of the pump body (24) is connected to the inlet pressure gauge (231), and the outlet end is connected to the outlet pressure gauge (232).

6. A marine genset black-start pump skid in accordance with claim 5, wherein, The medium conveying pipeline (3) also includes an inlet short pipe (32) and an outlet short pipe (33) fixedly connected to two liquid pipe supports (13). The adjacent ends of the inlet short pipe (32) and the outlet short pipe (33) are both connected to the pump body (24). An inlet gate valve (31) is installed on the side of the inlet short pipe (32) away from the inlet pressure gauge (231), and an outlet gate valve (34) is installed on the side of the outlet short pipe (33) away from the outlet pressure gauge (232).

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