Screw expander test platform with good adaptability

Abstract

The utility model discloses a screw expander test platform with good adaptability, which comprises a steel structure foundation, a test base, a lubricating system, a condensing system, an air compressor, an air storage tank, an electric heater and a steam-producing boiler, and is characterized in that the test base comprises an I-shaped steel base, a rear-end seat cushion plate and a front-end seat cushion plate; the I-shaped steel base is mounted on a steel structure foundation, and the screw expander is mounted on the front end seat cushion plate and the rear end seat cushion plate; according to the utility model, the steel structure foundation and the test base are adopted, so that the screw expanders of different models can be quickly mounted in operation tests; the lubricating system is integrated on the test base, so that the occupied area is saved; through the steam-producing boiler, the valve pipeline and the condensing system, the on-site working condition and the rotating speed can be simulated to a great extent, and the running performance of the screw expander is well verified; the high-temperature performance of the screw expander can be verified through the air compressor and the electric heater; the power generation performance of the screw expander can be verified through the upper computer system.

Description

Technical Field

[0001] This utility model relates to the technical field of screw expander testing devices, and in particular to a screw expander testing platform with good adaptability. Background Technology

[0002] A screw expander is a machine that uses a gaseous medium to expand by cooling and depressurizing within the toothed grooves of a twin-screw rotor, thereby driving a pair of screw rotors to mesh and rotate, which in turn drives a generator to generate electricity. Because the types, pressures, temperatures, and flow rates of the inlet / outlet media vary in the working environment of a screw expander, it is highly customizable, and neither the model nor the speed can be fixed. To test the performance of a screw expander, each unit needs to undergo a factory operation test. Manufacturers typically use three methods to drive the screw expander for factory operation tests: direct motor drive, compressed air, and boiler steam generation. While motor drive can maintain the unit's speed, the force is completely opposite to that under actual operating conditions. Compressed air and boiler steam generation can partially simulate the working medium, but due to layout and cost factors in production sites, the test equipment often has insufficient gas volume to maintain the unit's speed, let alone achieve power generation testing. Therefore, the aforementioned methods often fail to simulate actual operating conditions, resulting in ineffective verification of factory performance. Furthermore, each unit of different models requires a separately designed and manufactured test bench, which is labor-intensive, requires a large floor space, and is costly. Utility Model Content

[0003] The purpose of this invention is to provide a screw expander test platform with good adaptability.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A adaptable screw expander test platform includes a steel structure foundation, a test base, a lubrication system, a condensation system, an air compressor, an air storage tank, an electric heater, and a steam boiler. The test base includes an I-beam base, a rear end seat plate, and a front end seat plate. The I-beam base is mounted on the steel structure foundation. The screw expander is mounted on the front end seat plate and the rear end seat plate. The front end seat plate and the rear end seat plate have multiple mounting holes suitable for different models of screw expanders, facilitating installation of different models. The lubrication system is mounted on the test base. The lubrication system includes a filter. The system includes an oil tank and an oil pump. The oil pump pumps lubricating oil from the oil tank into a filter, and then delivers it to the lubrication point of the screw expander through the oil inlet pipeline. The lubricating oil finally flows back to the oil tank through the oil return pipeline. The inlet end of the screw expander is connected to the steam boiler through a pipeline. A quick-closing valve and a main regulating valve are installed on the pipeline between the screw expander and the steam boiler. The inlet end of the screw expander is also connected to an air compressor, an air storage tank, and an electric heater through pipelines. The screw expander is connected to the pipeline of the steam boiler or the air compressor through a reversing valve. The outlet end of the screw expander is connected to the condensation system.

[0006] Furthermore, the condensation system includes a vacuum pump, a condenser, and a cooling tower. The outlet end of the screw expander is connected to the steam inlet of the condenser via a pipe, and the condenser is connected to the cooling tower via the vacuum pump and a pipe.

[0007] Furthermore, a parallel pipeline is provided on the outside of the main regulating valve, and a fine-tuning valve is installed on the parallel pipeline. The main regulating valve and the fine-tuning valve are used together to regulate the flow rate of the conveyed steam and control the screw expander speed to be steadily increased to the test speed. The quick-closing valve is used to quickly stop the machine in an emergency.

[0008] Furthermore, the screw expander is connected to a generator via a coupling, and grid-connected power generation tests can be conducted by setting up the generator according to actual needs.

[0009] Furthermore, the connection ends of the pipes are all equipped with flexible metal hoses to facilitate connection with different models of screw expanders.

[0010] In summary, this utility model has the following beneficial effects:

[0011] 1. The steel structure foundation and test base enable rapid installation for operational testing of different models of screw expanders; the lubrication system is integrated into the test base, saving floor space.

[0012] 2. The operating conditions and speed of the screw expander can be simulated to a large extent through the steam boiler, valves, pipelines, and condensation system, which verifies the operating performance of the screw expander. The high-temperature performance of the screw expander can be verified through the air compressor and electric heater. The power generation performance of the screw expander can be verified through the host computer system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the lubrication system installation of the screw expander test platform of this utility model;

[0014] Figure 2 This is a schematic diagram of the screw expander test platform system of this utility model.

[0015] In the diagram, 1. I-beam base; 2. Rear end seat plate; 3. Front end seat plate; 4. Filter; 5. Oil tank; 6. Oil pump; 7. Steel structure foundation; 8. Test base; 9. Lubrication system; 10. Screw expander; 11. Generator; 12. Condensation system; 13. Air compressor; 14. Air storage tank; 15. Electric heater; 16. Steam boiler; 17. Quick-closing valve; 18. Main regulating valve; 19. Fine-tuning valve. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0017] like Figure 1 and Figure 2As shown, a highly adaptable screw expander test platform includes a steel structure foundation 7, a test base 8, a lubrication system 9, a condensation system 12, an air compressor 13, an air storage tank 14, an electric heater 15, and a steam boiler 16. The test base 8 includes an I-beam base 1, a rear end seat plate 2, and a front end seat plate 3. The I-beam base 1 is mounted on the steel structure foundation 7. The screw expander 10 is mounted on the front end seat plate 3 and the rear end seat plate 2. The front end seat plate 3 and the rear end seat plate 2 have multiple mounting holes suitable for different models of screw expanders 10, facilitating installation of different models. The lubrication system 9 is mounted on the test base 8. The lubrication system 9 includes a filter 4. The oil tank 5 and oil pump 6 are used. The oil pump 6 pumps the lubricating oil from the oil tank 5 into the filter 4, and then sends it to the lubrication position of the screw expander 10 through the oil inlet pipeline. The lubricating oil finally flows back to the oil tank 5 through the oil return pipeline. The inlet end of the screw expander 10 is connected to the steam boiler 16 through a pipeline. A quick-closing valve 17 and a main regulating valve 18 are installed on the pipeline between the screw expander 10 and the steam boiler 16. The inlet end of the screw expander 10 is also connected to the air compressor 13, the air storage tank 14 and the electric heater 15 through a pipeline. The screw expander 10 is connected to the pipeline of the steam boiler 16 or the air compressor 13 through a reversing valve. The outlet end of the screw expander 10 is connected to the condensing system 12.

[0018] Furthermore, the condensation system 12 includes a vacuum pump, a condenser, and a cooling tower. The outlet end of the screw expander 10 is connected to the steam inlet of the condenser via a pipe, and the condenser is connected to the cooling tower via the vacuum pump and a pipe.

[0019] Furthermore, a parallel pipeline is provided on the outside of the main regulating valve 18, and a fine-tuning valve 19 is installed on the parallel pipeline. The main regulating valve 18 and the fine-tuning valve 19 are used together to regulate the flow rate of the conveyed steam and control the speed of the screw expander 10 to be steadily increased to the test speed. The quick-closing valve 17 is used to quickly stop the machine in an emergency.

[0020] Furthermore, the screw expander 10 is connected to the generator 11 via a coupling, and grid-connected power generation tests can be conducted by setting up the generator 11 according to actual needs.

[0021] Furthermore, the connection ends of the pipes are all equipped with flexible metal hoses to facilitate connection with different models of screw expanders.

[0022] Test Procedure: The inlet of the screw expander 10 is connected to the steam boiler 15 via valves and pipes. The main regulating valve 18 and the fine-tuning valve 19 work together to regulate the flow rate of the delivered steam, controlling the screw expander 10 speed to smoothly increase to the test speed. The quick-closing valve 17 is used for rapid shutdown in emergencies. The outlet of the screw expander 10 is connected to the condensing system 12 via pipes, and the screw expander 10 is also connected to the lubrication system 9. During the operational test, the pressure at the outlet of the screw expander 10 can be set according to project requirements. A level gauge and flow meter are installed at the condenser to observe and statistically analyze the steam flow consumed during the operational test. If the project involves high-temperature conditions, the inlet of the screw expander 10 can be switched to air compressor 13, which supplies air via air tank 14. The air is then heated to the test temperature by electric heater 15 to verify the high-temperature performance of the screw expander 10.

[0023] During factory operation testing, pressure and temperature sensors are installed at the inlet / outlet of the screw expander 10. Corresponding sensors / transmitters are also installed for equipment speed, vibration, and oil temperature. These sensors / transmitters collect and transmit operating parameters to the host computer system. The host computer system can control the opening of each valve and view the operating parameter curves, thereby monitoring, protecting, and collecting and analyzing data during the screw expander 10's operation test. If the customer has special requirements, the test platform can also be equipped with a generator 11 connected to the screw expander 10 for grid-connected power generation testing.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A screw expander test platform with good adaptability, characterized in that: The test base includes a steel structure foundation (7), a test base (8), a lubrication system (9), a condensation system (12), an air compressor (13), an air storage tank (14), an electric heater (15), and a steam boiler (16). The test base (8) includes an I-beam base (1), a rear seat plate (2), and a front seat plate (3). The I-beam base (1) is installed on the steel structure foundation (7), and the screw expander (10) is installed on the front seat plate (3) and the rear seat plate (2). The lubrication system (9) is installed on the test base (8). The lubrication system (9) includes a filter (4), an oil tank (5), and an oil pump (6). The oil pump (6) pumps the lubricating oil in the oil tank (5) into the filter. (4) The oil is then sent to the lubrication position of the screw expander (10) through the oil inlet pipe, and the lubricating oil finally flows back to the oil tank (5) through the oil return pipe; the inlet end of the screw expander (10) is connected to the steam boiler (16) through the pipe, and a quick-closing valve (17) and a main regulating valve (18) are installed on the pipe between the screw expander (10) and the steam boiler (16). The inlet end of the screw expander (10) is also connected to the air compressor (13), the air storage tank (14) and the electric heater (15) through the pipe. The screw expander (10) is connected to the pipeline of the steam boiler (16) or the air compressor (13) through the reversing valve. The outlet end of the screw expander (10) is connected to the condensing system (12).

2. The adaptable screw expander test platform according to claim 1, characterized in that: The condensation system (12) includes a vacuum pump, a condenser and a cooling tower. The outlet of the screw expander (10) is connected to the steam inlet of the condenser through a pipe. The condenser is connected to the cooling tower through the vacuum pump and the pipe.

3. The adaptable screw expander test platform according to claim 1, characterized in that: The main regulating valve (18) is provided with a parallel pipeline on its outer side, and a fine-tuning valve (19) is installed on the parallel pipeline.

4. The adaptable screw expander test platform according to claim 1, characterized in that: The screw expander (10) is connected to the generator (11) via a coupling.

5. A screw expander test platform with good adaptability according to claim 2 or 3, characterized in that: All the connection ends of the pipes are equipped with flexible metal hoses.

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