Test bed for nuclear power emergency diesel generating set

Abstract

The utility model provides a nuclear power emergency diesel generating set test bench, which comprises a test bench, a set to be tested is arranged on the test bench, and a joint cooler, a high-temperature water electric heater, a lubricating oil pre-supply pump and a lubricating oil high-temperature water plate heat exchanger are arranged on the test bench close to the set to be tested. The combined cooler is communicated with the to-be-tested unit through a pipeline and is also communicated with the lubricating oil pre-supply pump through a pipeline; the high-temperature water electric heater is respectively communicated with the combined cooler and the lubricating oil high-temperature water plate heat exchanger; the lubricating oil pre-supply pump is also in plate exchange with the to-be-tested unit and the lubricating oil high-temperature water through pipelines; the to-be-tested unit is also provided with a fuel oil pipeline. According to the utility model, the arrangement condition of the diesel generator set in a nuclear power site can be simulated, various tests such as independent diesel engines of different types, joint debugging of the diesel engine and the generator, identification and delivery of the diesel generator and the like can be carried out, so that the diesel generator set can be tested orderly, and the acceptance and delivery efficiency of the set is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel generator set test benches, and in particular relates to a nuclear power emergency diesel generator set test bench. Background Art

[0002] To meet the functional requirements of nuclear power projects for emergency diesel generator sets, each diesel generator set's diesel engine must complete various tests according to relevant design standards before leaving the factory. Only after these tests can the diesel engine be combined with the generator to form a diesel generator set for factory testing. Nuclear power plants use large diesel generator sets with a wide variety of models, requiring extensive testing and long duration.

[0003] Based on this, a nuclear power emergency diesel generator set test bench was proposed. The test bench is used for single-unit, identification and factory testing of nuclear power emergency diesel generator sets. It has a compact structure, is easy to assemble and disassemble, and is suitable for a variety of models. It is conducive to improving the test efficiency of diesel generator sets and ensuring that each diesel engine and diesel generator set can successfully complete various tests. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a nuclear power emergency diesel generator set test bench in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a nuclear power emergency diesel generator set test bench, comprising a test bench, a unit to be tested is arranged on the test bench, and a combined cooler, a high-temperature water electric heater, a lubricating oil pre-supply pump and a lubricating oil high-temperature water plate exchanger are also arranged on the test bench near the unit to be tested;

[0006] The combined cooler is connected to the unit to be tested through a pipeline, and the combined cooler is also connected to the lubricating oil pre-supply pump through a pipeline;

[0007] The high-temperature water electric heater is connected to the combined cooler and the lubricating oil high-temperature water plate exchanger respectively;

[0008] The lubricating oil pre-supply pump is also connected to the unit to be tested and the lubricating oil high-temperature water plate through pipelines;

[0009] The unit to be tested is also provided with a fuel pipeline.

[0010] As a further explanation of the present invention, the combined cooler is installed on the test bench at the head of the diesel engine of the unit to be tested, and a pipeline is connected between the interface of the combined cooler and the diesel engine body of the unit to be tested.

[0011] As a further explanation of the present invention, the lubricating oil pre-supply pump is installed on the bottom steel beams on both sides of the diesel engine of the test unit on the test bench, and a pipeline is connected between the upper interface of the lubricating oil pre-supply pump and the diesel engine body of the test unit.

[0012] As a further illustration of the present invention, a 5-bar lubricating oil pressure regulating valve is connected to the lubricating oil pipe port of the combined cooler, and oil sealing oil is provided to the diesel engine of the unit to be tested through the pressure regulating valve.

[0013] As a further illustration of the present invention, the flatness of the test bench is controlled within □2000.1 mm.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The utility model connects the unit to be tested with the combined cooler, the high-temperature water electric heater, the lubricating oil pre-supply pump and the lubricating oil high-temperature water plate exchanger, and also provides a fuel pipeline on the unit to be tested, so that the fuel, lubricating oil, cooling water and other auxiliary systems of the diesel generator set of the unit to be tested can be connected with the diesel generator set interface, simulating the layout of the diesel generator set at the nuclear power site, and can carry out various tests such as separate diesel engines of different models, diesel engine and generator joint adjustment, diesel generator identification and factory delivery, so as to realize the orderly completion of the test of the diesel generator set and improve the unit acceptance and factory delivery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the overall structure of the utility model.

[0017] Description of reference numerals:

[0018] 1-Test bench; 2-Unit to be tested; 3-Combined cooler; 4-High-temperature water heater; 5-Lubricating oil pre-supply pump; 6-Lubricating oil high-temperature water plate exchanger; 7-Fuel pipeline. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1As shown, the utility model provides a technical solution: a nuclear power emergency diesel generator set test bench, comprising a test bench 1, on which a unit to be tested 2 is arranged, and the unit to be tested 2 is a diesel generator set. The test bench 1 is also provided with a combined cooler 3, a high-temperature water electric heater 4, a lubricating oil pre-supply pump 5 and a lubricating oil high-temperature water plate exchanger 6 near the unit to be tested 2;

[0021] The unit to be tested 2 is also provided with a fuel pipeline 7 , through which fuel is fed into the unit to be tested 2 .

[0022] The combined cooler 3 is installed on the test bench 1 at the diesel engine head position of the unit to be tested 2, and a pipeline is connected between the interface of the combined cooler 3 and the diesel engine body of the unit to be tested 2. The combined cooler 3 is in communication with the unit to be tested 2 through the pipeline;

[0023] The lubricating oil pre-supply pump 5 is installed on the bottom steel beams on both sides of the diesel engine of the unit to be tested 2 on the test bench 1, and a pipeline is connected between the upper interface of the lubricating oil pre-supply pump 5 and the diesel engine body of the unit to be tested 2. The combined cooler 3 is also connected to the lubricating oil pre-supply pump 5 through a pipeline. A lubricating oil 5bar pressure regulating valve is connected to the lubricating oil pipe port of the combined cooler 3, and oil sealing oil is provided to the diesel engine of the unit to be tested 2 through the pressure regulating valve.

[0024] The high-temperature water electric heater 4 is connected to the combined cooler 3 and the lubricating oil high-temperature water plate exchanger 6 respectively, and the lubricating oil pre-supply pump 5 is also connected to the lubricating oil high-temperature water plate exchanger 6 through a pipeline.

[0025] The flatness of the test bench 1 is controlled within □200 0.1mm. Before use, the lubricating oil pre-supply pump 5 system needs to be circulated and flushed, and the compressed air system of the fuel pipeline 7 needs to be purged.

[0026] During the specific test, the lubricating oil outlet on the test unit 2, i.e., the diesel generator set, is connected to the inlet of the lubricating oil pre-supply pump 5, and the outlet of the lubricating oil pre-supply pump 5 is connected to the lubricating oil side inlet of the lubricating oil high-temperature water plate exchanger 6. The lubricating oil heated by the lubricating oil high-temperature water plate exchanger 6 enters the diesel generator set through the lubricating oil side outlet of the lubricating oil high-temperature water plate exchanger;

[0027] The high-temperature water outlet of the diesel generator set has a branch connected to the high-temperature water preheating pump inlet, the high-temperature water preheating pump outlet is connected to the inlet of the high-temperature water electric heater 4, and the outlet of the high-temperature water electric heater 4 is connected to the inlet of the lubricating oil high-temperature water plate exchanger 6. After the high-temperature water comes out of the high-temperature water outlet of the diesel generator set, it passes through the high-temperature water preheating pump, the high-temperature water electric heater 4, and heats the lubricating oil in the lubricating oil high-temperature water plate exchanger 6 before entering the diesel generator set circulation;

[0028] After the lubricating oil comes out of the lubricating oil outlet of the diesel generator set through the engine belt lubricating oil pump, it is connected to the lubricating oil side inlet of the combined cooler 3, passes through the thermostatic valve on the combined cooler 3, and enters the lubricating oil inlet of the diesel generator set;

[0029] The low-temperature water comes out from the low-temperature water outlet on the diesel generator set body and enters the low-temperature water side inlet of the combined cooler 3, cooling the lubricating oil and fuel at the same time. After coming out from the low-temperature water side outlet of the combined cooler 3, it is sent to the cooling water plate preset in the test bench 1, where it is cooled before entering the low-temperature water inlet on the diesel generator set.

[0030] The fuel comes out from the fuel outlet of the diesel generator set, enters the fuel side inlet of the combined cooler 3, comes out from the fuel side outlet of the combined cooler 3 after being cooled, passes through the factory's oil supply unit, and then returns to the fuel tank used in the test factory.

[0031] In this embodiment, the unit to be tested 2 is connected to the combined cooler 3, the high-temperature water electric heater 4, the lubricating oil pre-supply pump 5 and the lubricating oil high-temperature water plate exchanger 6, and a fuel pipeline 7 is also provided on the unit to be tested 2, so that the fuel, lubricating oil, cooling water and other auxiliary systems of the diesel generator set of the unit to be tested 2 can be connected to the diesel generator set interface, simulating the layout of the diesel generator set at the nuclear power site, and can conduct various tests such as different types of diesel engines, diesel engine and generator joint adjustment, diesel generator identification and factory delivery separately, so as to achieve orderly completion of the test of the diesel generator set and improve the unit acceptance and factory delivery efficiency.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nuclear power emergency diesel generator test bench, characterized by: The invention comprises a test bench (1), a unit to be tested (2) is arranged on the test bench (1), and a combined cooler (3), a high-temperature water electric heater (4), a lubricating oil pre-supply pump (5) and a lubricating oil high-temperature water plate exchanger (6) are also arranged on the test bench (1) near the unit to be tested (2); The combined cooler (3) is connected to the unit to be tested (2) through a pipeline, and the combined cooler (3) is also connected to the lubricating oil pre-supply pump (5) through a pipeline; The high-temperature water electric heater (4) is respectively connected to the combined cooler (3) and the lubricating oil high-temperature water plate exchanger (6); The lubricating oil pre-supply pump (5) is also connected to the unit to be tested (2) and the lubricating oil high-temperature water exchanger (6) through pipelines; The unit to be tested (2) is also provided with a fuel pipeline (7).

2. A nuclear power emergency diesel generator set test bench according to claim 1, characterized in that: The combined cooler (3) is installed on the test bench (1) at the diesel engine head position of the test unit (2), and a pipeline is connected between the interface of the combined cooler (3) and the diesel engine body of the test unit (2).

3. A nuclear power emergency diesel generator set test bench according to claim 1, characterized in that: The lubricating oil pre-supply pump (5) is installed on the bottom steel beams on both sides of the diesel engine of the test unit (2) on the test bench (1), and a pipeline is connected between the upper interface of the lubricating oil pre-supply pump (5) and the diesel engine body of the test unit (2).

4. A nuclear power emergency diesel generator set test bench according to claim 3, characterized in that: The lubricating oil pipe port of the combined cooler (3) is connected to a lubricating oil 5 bar pressure regulating valve, through which oil seal oil is provided to the diesel engine of the unit to be tested (2).

5. A nuclear power emergency diesel generator set test bench according to claim 1, characterized in that: The flatness of the test bench (1) is controlled within □200 0.1 mm.

Images