Maintenance device for high-temperature reactor emergency diesel generator in stationary period and use method
The air compressor and pipeline system form a dry and purified internal maintenance path in the high-temperature reactor emergency diesel generator, solving the problem of metal rust during the static period and ensuring that the generator maintains good performance in a high-salt and high humidity environment.
Patent Information
- Application Number
- CN202411235806.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2024-12-10
AI Technical Summary
During the static period of high-temperature air-cooled reactor emergency diesel generator, internal cylinders and pistons directly contact high-salt and high-humidity air, resulting in metal rust and other problems.
A maintenance device including an air compressor, an intake pipeline, an outlet pipeline and a humidity sensing pipeline was designed. The air compressor generates compressed air and forms an internal maintenance path between the cylinder head ventilation pipe and the outlet of the oil and gas separator to ensure the air Dry and purify to prevent high-salt and high humidity air from contacting internal components for a long time.
It effectively prevents metal corrosion, keeps the inside of the diesel generator dry and clean, and ensures that the generator still operates normally when it is left to stand for a long time.
Smart Images
Figure CN119102874A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of diesel generators for high temperature reactors, and in particular to a maintenance device and a use method of an emergency diesel generator for a high temperature reactor in a static period. Background Art
[0002] The emergency diesel generator set of the high temperature gas-cooled reactor is set up as two independent safety power supply sequences according to the division of two emergency shutdown and dedicated safety facility load groups for each reactor. The emergency diesel generator set requires that when all normal power sources outside the plant are lost, the unit should start supplying power within the specified time, and provide power for the process system loads specified on the emergency bus that are allowed to be interrupted for a certain period of time according to the requirements of the load program. These loads are safety auxiliary loads and necessary non-safety loads shared by the two reactors.
[0003] Compared with thermal power plants, nuclear power plants have a wider range of equipment commissioning and longer test cycles, and the time from equipment installation to commissioning is longer. Nuclear power plants are mostly built near the sea, where the air has a high salinity, and long-term static equipment may cause various problems.
[0004] The diesel generators in nuclear power plants serve as backup power sources within the plant. Their testing is in the late stage of the entire commissioning process of the power plant. The diesel generators are placed in the factory for a long time. In order to prevent the internal oil from deteriorating, the fuel oil and other materials will be drained. Therefore, the internal cylinders, pistons and other components are in direct contact with the outside air. When high-salt and high-humidity air enters the internal chamber, it will cause metal corrosion and other problems. Summary of the invention
[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the internal cylinder, piston and other components of the emergency diesel generator are directly exposed to the external air, and when the high-salt and high-humidity air enters the internal chamber, it will cause metal corrosion and other problems, thereby providing a maintenance device and a method of use for an emergency diesel generator for a high-temperature reactor in a static period.
[0006] In order to solve the above problems, the present invention provides a maintenance device for an emergency diesel generator for a high temperature reactor in a stationary period, comprising:
[0007] An air compressor, wherein the air compressor is provided with an air inlet end and an air outlet end;
[0008] An air intake pipeline, one end of which is connected to the air outlet of the air compressor, and the other end of which is suitable for connecting to the vent pipe of the cylinder head of the diesel generator;
[0009] An air outlet pipeline, one end of which is connected to the air inlet end of the air compressor, and the other end of which is connected to the oil-gas separator outlet of the diesel generator, and an internal maintenance passage is formed between the ventilation pipe of the cylinder head and the oil-gas separator outlet.
[0010] Optionally, a filter is provided on the air intake pipeline, and a first valve and a second valve are also provided on the air intake pipeline, and the filter is provided between the first valve and the second valve.
[0011] Optionally, a dryer is provided in the air compressor, and the dryer is used to absorb moisture in the gas passing through the air compressor.
[0012] Optionally, a dryer is provided on the air intake pipeline, and the dryer is arranged between the ventilation pipe and the filter.
[0013] Optionally, a humidity sensing pipeline is further included, and the humidity sensing pipeline is connected to the air outlet pipeline.
[0014] Optionally, a first hygrometer is provided on the humidity sensing pipeline.
[0015] Optionally, a third valve is further provided on the humidity sensing pipeline, and the third valve is located between the first hygrometer and the air outlet pipeline.
[0016] Optionally, a second hygrometer is provided at the inlet of the air compressor, and the first hygrometer and the second hygrometer display humidity values respectively.
[0017] A method for using a maintenance device for an emergency diesel generator for a high-temperature reactor in a stationary period, wherein an air compressor generates compressed air, an internal maintenance passage is formed between a vent pipe of a cylinder head and an outlet of an oil-gas separator, and the compressed air is exchanged with the air in the internal maintenance passage.
[0018] Optionally, the following steps are included:
[0019] 1) Connect the air inlet pipe, air outlet pipe and humidity sensing pipe respectively to form an internal maintenance passage;
[0020] 2) Open the first valve, the second valve and the third valve, start the air compressor, form an air circulation pipeline, remove impurities through the dryer, and remove humidity through the dryer;
[0021] 3) Open the indicator valve of the diesel generator every week, crank the diesel generator set for 15 minutes, and close the indicator valve after cranking;
[0022] 4) Clean and check the filter every month and replace the dirty air filter;
[0023] 5) During daily inspections, check the humidity at the air compressor inlet. When the humidity exceeds the preset value, check and handle the air compressor dehumidifier.
[0024] The technical solution of the present invention has the following advantages:
[0025] 1. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention during the static period comprises: an air compressor, the air compressor is provided with an air inlet end and an air outlet end; an air inlet pipeline, one end of which is connected to the air outlet end of the air compressor, and the other end is suitable for being connected to the vent pipe of the cylinder head of the diesel generator, on the air inlet pipeline; an air outlet pipeline, one end of which is connected to the air inlet end of the air compressor, and the other end is connected to the oil-gas separator outlet of the diesel generator, and an internal maintenance passage is formed between the vent pipe of the cylinder head and the oil-gas separator outlet.
[0026] The air compressor generates compressed air, and an internal maintenance passage is formed between the breather pipe of the cylinder head and the outlet of the oil-gas separator. The compressed air is fully exchanged with the air in the internal maintenance passage. High-salt and humid air cannot stay in the internal chamber of the diesel generator for a long time to avoid corrosion of the metal in the internal chamber.
[0027] 2. The maintenance device for the emergency diesel generator for high temperature reactor provided by the present invention is provided with a filter on the air intake pipeline, and a first valve and a second valve are also provided on the air intake pipeline, and the filter is arranged between the first valve and the second valve. The filter filters the impurities of the gas in the air intake pipeline to ensure that pure air enters the internal maintenance passage.
[0028] 3. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention is in a stationary period. A dryer is provided in the air compressor. The dryer absorbs moisture in the gas passing through the air compressor to keep the gas in the diesel generator dry.
[0029] 4. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention is in a static period. A dryer is provided on the air intake pipeline. The dryer is arranged between the ventilation pipe and the filter. The dryer dries the air in the air intake pipeline to remove moisture from the gas in the air intake pipeline.
[0030] 5. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention in a static period further comprises a humidity sensing pipeline, which is connected to the gas outlet pipeline to facilitate the detection of humidity of the gas in the gas outlet pipeline.
[0031] 6. In the maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention during a stationary period, a first hygrometer is provided on the humidity sensing pipeline, and the first hygrometer detects the humidity on the outlet pipeline.
[0032] 7. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention is in a static period. A third valve is also provided on the humidity sensing pipeline. The third valve is located between the first hygrometer and the outlet pipeline. When detection is not required, the third valve is closed to avoid long-term use of the first hygrometer.
[0033] 8. The maintenance device for the emergency diesel generator for a high-temperature reactor provided by the present invention is in a stationary period. A second hygrometer is provided at the inlet of the air compressor. The first hygrometer and the second hygrometer respectively display humidity values. When the second hygrometer displays a value exceeding a preset value, the air compressor is inspected and repaired. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0035] Figure 1 It is a schematic diagram of a maintenance device for an emergency diesel generator for a high-temperature reactor in a static period provided in an embodiment of the present invention.
[0036] Explanation of the reference numerals: 1. Inlet pipe; 101. Filter; 102. First valve; 103. Second valve; 2. Exit pipe; 3. Diesel generator; 301. Ventilation pipe; 302. Oil-gas separator; 4. Air compressor; 5. Humidity sensing pipe; 501. First hygrometer; 502. Third valve. DETAILED DESCRIPTION
[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.
[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0041] like Figure 1 A specific embodiment of the maintenance device for the emergency diesel generator 3 for a high temperature reactor in a stationary period shown includes: an air compressor 4, an air inlet pipeline 1 and an air outlet pipeline 2, and a diesel generator 3 connected to the two pipelines.
[0042] like Figure 1 As shown, one end of the air inlet pipe 1 is connected to the air outlet of the air compressor 4, and the other end is suitable for communicating with the vent pipe 301 of the cylinder head of the diesel generator 3; one end of the air outlet pipe 2 is connected to the air inlet of the air compressor 4, and the other end is connected to the outlet of the oil-gas separator 302 of the diesel generator 3, wherein an internal maintenance passage is formed between the vent pipe 301 of the cylinder head and the outlet of the oil-gas separator 302. Figure 1 As shown, a filter 101 is provided on the air intake pipeline 1, and a first valve 102 and a second valve 103 are also provided on the air intake pipeline 1. The filter 101 is provided between the first valve 102 and the second valve 103, and the filter 101 is used to filter impurities in the air in the air intake pipeline 1. Specifically, the first valve 102 and the second valve 103 are both solenoid valves. Figure 1 As shown, it also includes a humidity sensing pipeline 5, which is connected to the air outlet pipeline 2. The humidity sensing pipeline 5 is provided with a first hygrometer 501 and a third valve 502, and the third valve 502 is located between the first hygrometer 501 and the air outlet pipeline 2. Specifically, the third valve 502 is a solenoid valve, and the first hygrometer 501 is an electronic induction hygrometer. In order to keep the air output by the air compressor 4 dry, a dryer is provided in the air compressor 4, and the dryer absorbs moisture in the gas passing through the air compressor 4. In order to detect the humidity of the air entering the air inlet pipeline 1 of the air compressor 4, a second hygrometer is provided at the entrance of the air compressor 4, and the first hygrometer 501 and the second hygrometer respectively display the humidity value. Specifically, the second hygrometer is an electronic induction hygrometer. It should be noted that the entrance of the air compressor 4 is connected to the dehumidifier inside the air compressor 4.
[0043] In order to realize automatic control, a controller is also included, and the controller is respectively connected to the first valve 102, the second valve 103, the third valve 502, the first hygrometer 501 and the second hygrometer for communication.
[0044] A method for using a maintenance device for an emergency diesel generator for a high-temperature reactor in a stationary period comprises the following steps:
[0045] 1) Connect the air inlet pipeline 1, the air outlet pipeline 2 and the humidity sensing pipeline 5 respectively to form an internal maintenance passage;
[0046] 2) The controller controls the opening of the first valve 102, the second valve 103 and the third valve 502, and starts the air compressor 4 to form an air circulation pipeline, and the dryer removes impurities and moisture;
[0047] 3) Open the indicator valve of diesel generator 3 every week, crank the diesel generator 3 for 15 minutes, and close the indicator valve of the diesel engine after the cranking is completed;
[0048] 4) Clean and inspect the filter 101 every month and replace the dirty air filter 101;
[0049] 5) During daily inspections, check the humidity at the inlet of the air compressor 4. When the humidity exceeds the preset value (humidity ≥ 50%), check and process the dehumidifier of the air compressor 4.
[0050] The maintenance device and method for use of an emergency diesel generator for a high-temperature reactor during a stationary period provided in the present application have the following advantages: (1) regular maintenance and care of the diesel generator 3 is achieved to ensure the normal operation of the diesel generator 3; (2) impurities in the diesel generator 3 are removed by the filter 101 and the air is dried by the dryer, so that the diesel generator 3 still has good performance in a high humidity environment and long-term stationary state, and the interior of the diesel generator 3 is always kept dry and clean.
[0051] As an alternative implementation, the first valve 102, the second valve 103 and the third valve 502 may also be manual valves or other valves.
[0052] As an alternative implementation, a dryer is provided on the air intake pipeline 1 , and the dryer is provided between the ventilation pipe 301 and the filter 101 .
[0053] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.
Claims
1. A maintenance device for an emergency diesel generator for a high temperature reactor in a stationary period, characterized in that: include: An air compressor (4), the air compressor (4) being provided with an air inlet end and an air outlet end; An air intake pipeline (1), one end of the air intake pipeline (1) being connected to an air outlet end of an air compressor (4), and the other end of the air intake pipeline (1) being suitable for being connected to a vent pipe (301) of a cylinder head of a diesel generator (3); An air outlet pipeline (2), one end of the air outlet pipeline (2) is connected to the air inlet end of the air compressor (4), and the other end of the air outlet pipeline (2) is connected to the outlet of the oil-gas separator (302) of the diesel generator (3), and an internal maintenance passage is formed between the ventilation pipe (301) of the cylinder head and the outlet of the oil-gas separator (302).
2. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 1 is characterized in that: The air intake pipeline (1) is provided with a filter (101), and the air intake pipeline (1) is also provided with a first valve (102) and a second valve (103), wherein the filter (101) is arranged between the first valve (102) and the second valve (103).
3. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 1 is characterized in that: The air compressor (4) is provided with a dryer, and the dryer is used to absorb moisture in the gas passing through the air compressor (4).
4. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 2 is characterized in that: The air intake pipeline (1) is provided with a dryer, and the dryer is arranged between the ventilation pipe (301) and the filter (101).
5. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 4 is characterized in that: It also comprises a humidity sensing pipeline (5), wherein the humidity sensing pipeline (5) is in communication with the air outlet pipeline (2).
6. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 5 is characterized in that: The humidity sensing pipeline (5) is provided with a first hygrometer (501).
7. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 6 is characterized in that: The humidity sensing pipeline (5) is also provided with a third valve (502), and the third valve (502) is located between the first hygrometer (501) and the air outlet pipeline (2).
8. The maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 7 is characterized in that: A second hygrometer is provided at the inlet of the air compressor (4), and the first hygrometer (501) and the second hygrometer are used to display humidity values respectively.
9. A method for using a maintenance device for a high-temperature reactor emergency diesel generator in a stationary period, for using the maintenance device for a high-temperature reactor emergency diesel generator (3) in a stationary period as claimed in claim 1, characterized in that: The air compressor (4) generates compressed air, and an internal maintenance passage is formed between the vent pipe (301) of the cylinder head and the outlet of the oil-gas separator (302), and the compressed air is exchanged with the air in the internal maintenance passage.
10. The method for using the maintenance device for the emergency diesel generator for high temperature reactor in the static period according to claim 9, characterized in that: The following steps are involved: 1) connecting the air inlet pipeline (1), the air outlet pipeline (2) and the humidity sensing pipeline (5) respectively to form an internal maintenance passage; 2) opening the first valve (102), the second valve (103) and the third valve (502), starting the air compressor (4), forming an air circulation pipeline, removing impurities through the dryer, and removing humidity through the dryer; 3) Open the indicator valve of the diesel generator (3) every week, crank the diesel generator (3) for 15 minutes, and close the indicator valve of the diesel engine after the cranking is completed; 4) Clean and inspect the filter (101) every month, and replace the dirty air filter (101); 5) During daily inspections, check the humidity at the inlet of the air compressor (4). When the humidity exceeds the preset value, check and handle the dehumidifier of the air compressor (4).