CN114212210B - Guarantee system and test method for simulating real ship working condition of ship system - Google Patents
Guarantee system and test method for simulating real ship working condition of ship system Download PDFInfo
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- CN114212210B CN114212210B CN202111493271.1A CN202111493271A CN114212210B CN 114212210 B CN114212210 B CN 114212210B CN 202111493271 A CN202111493271 A CN 202111493271A CN 114212210 B CN114212210 B CN 114212210B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
- B63B71/20—Designing vessels; Predicting their performance using towing tanks or model basins for designing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- Ocean & Marine Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a guarantee system and a test method for simulating the real ship working condition of a ship system, which relate to the field of ship system simulation tests, wherein the guarantee system comprises: a water tank; a pipeline assembly including a water outlet pipeline and a water return pipeline for forming a circulating waterway between the water tank and the ship system; a first pressure transmitter disposed between the water outlet line and the water return line; and the water outlet pipeline is used for providing and controlling the pressure head of the pipeline assembly water circulation, and determining whether the test requirement of the ship system is met or not according to the pressure head indicated by the first pressure transmitter. The system can ensure that the state of the ship system accords with the actual running state in the test, thereby accurately simulating the working state of key equipment of the ship system.
Description
Technical Field
The invention relates to the field of ship system simulation tests, in particular to a guarantee system and a test method for simulating the real ship working condition of a ship system.
Background
With the maturation of three-dimensional design software of shipbuilding industry, the modular design and three-dimensional lofting of software are carried out on ships, and then the modular construction becomes the mainstream of shipbuilding modes in China increasingly. After the ship is modularly designed, different modules of the ship can be built at the same time, and then the assembly is completed on a slipway, so that the original serial construction is changed into parallel construction, and the ship construction period can be greatly shortened.
Because the ship belongs to large-scale nonstandard machinery, basically each ship can be redesigned or improved according to actual requirements, so that the difference between ship systems of different ships is large, and the working states of the systems are different. After the modular ship is built, system debugging and rectification on the module are key factors influencing the ship lead time, and further a module test is proposed, namely, after the module is built, the module system test is immediately carried out, so that the state of the system on the module is checked, the problem is found in advance, and the problem is solved.
The module is composed of a plurality of independent subsystems, a large number of systems in the ship subsystems are connected with external seawater or fresh water, an external device is required to provide the seawater or fresh water required by the module subsystem test during the test, and an external device set for providing the seawater or fresh water is called a guarantee system. The system is ensured to be capable of simulating external conditions of a real ship, providing enough seawater or fresh water for a ship system with performance to be detected on a module, and not influencing the state of the ship system to be detected, so that the working state of equipment of the system to be detected and the water supply of different equipment are truly fed back. It is common practice to directly simulate the sailing of a ship in a water area, and construct a large pool of water against the module to be tested, from which the system to be tested absorbs and drains water. In order to reduce the flow resistance of the system introduced by the additional introduction pipeline, the ship system module to be tested is closely adjacent to a large-sized water tank, the method provides higher requirements for a test site, water and space are required to be larger, the test is quite inconvenient, and the mode cannot ensure that the ship system state accords with the actual running state during the test, so that the working state of key equipment of the ship system cannot be accurately simulated.
Disclosure of Invention
Aiming at the defects in the prior art, the first aspect of the invention provides a guarantee system for simulating the real ship working condition of a ship system, which can enable the state of the ship system to be consistent with the actual running state in the test, thereby accurately simulating the working state of key equipment of the ship system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a system for securing a real vessel condition of a marine system, comprising:
a water tank;
a pipeline assembly including a water outlet pipeline and a water return pipeline for forming a circulating waterway between the water tank and the ship system;
a first pressure transmitter disposed between the water outlet line and the water return line;
and the water outlet pipeline is used for providing and controlling the pressure head of the pipeline assembly water circulation, and determining whether the test requirement of the ship system is met or not according to the pressure head indicated by the first pressure transmitter.
In some embodiments of the present invention,
the utility model discloses a marine pipeline, including pipeline, pressure transmitter, water tank, centrifugal pump, pipeline, outlet pipe way one end with the water tank links to each other, the other end with marine system's water inlet links to each other, outlet pipe way is equipped with centrifugal pump and governing valve, the centrifugal pump is used for providing pipeline assembly hydrologic cycle's pressure head, the governing valve is used for adjusting resistance coefficient in order to control through the pressure transmitter indicates the size of pressure head.
In some embodiments, the water outlet line further comprises:
and the second pressure transmitter is connected in parallel with two ends of the centrifugal pump and is used for monitoring the working state of the centrifugal pump.
In some embodiments, the water outlet line further comprises a pressure gauge disposed at the outlet of the centrifugal pump.
In some embodiments, the outlet line further comprises a thermometer disposed between the regulator valve and the first pressure transmitter.
In some embodiments, the outlet line further comprises a flow meter disposed between the regulator valve and the first pressure transmitter.
In some embodiments, isolation valves are provided between the water tank and the centrifugal pump, between the centrifugal pump and the regulating valve, and between the regulating valve and the first pressure transmitter.
In some embodiments, the rated flow of the centrifugal pump is 1.3 to 1.5 times of the maximum flow of the ship system, and the lift of the centrifugal pump is 1.2 times of the flow resistance when the valve of the guaranteeing system is fully opened under the rated flow.
In some embodiments, one end of the water return pipeline is connected to the water tank, the other end is connected to the water outlet of the marine system, and an isolation valve is further disposed between the water tank and the first pressure transmitter on the water return pipeline.
The second aspect of the invention provides a test method of a guarantee system for simulating the real ship working condition of a ship system, which can enable the state of the ship system to be consistent with the actual running state during the test, thereby accurately simulating the working state of key equipment of the ship system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a test method of a guarantee system for simulating the real ship working condition of a ship system by utilizing the test method comprises the following steps:
after the guarantee system is connected with the ship system, a centrifugal pump is started to provide a pressure head of the pipeline assembly for water circulation, and an adjusting valve is adjusted to enable the indication of the first pressure transmitter to be zero.
Compared with the prior art, the invention has the advantages that:
the system for guaranteeing the real ship working condition of the ship system is simple in structure, and can enable the guaranteeing system to provide sufficient water for the system to be tested without generating additional pressure heads by adjusting the regulating valve, so that the ship system state in the test is consistent with the actual running state, the working state of key equipment of the ship system can be accurately simulated, problems of the system can be found in advance, and the risk of the system after boarding the ship is solved.
Drawings
FIG. 1 is a block diagram of a system for ensuring the actual ship conditions of a marine system in an embodiment of the invention.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The embodiment of the invention provides a guarantee system for simulating the real ship working condition of a ship system, which can enable the state of the ship system to be consistent with the actual running state in a test, so that the working state of key equipment of the ship system can be accurately simulated.
FIG. 1 is a block diagram of a system of assurance simulating the actual ship condition of a marine system, including a water tank, a piping assembly and a first pressure transmitter.
The pipeline assembly comprises an outlet pipeline and a return pipeline, wherein the outlet pipeline and the return pipeline are used for enabling the water tank and the ship system to form a circulating waterway. The first pressure transmitter is disposed between the water outlet line and the water return line. And the water outlet pipeline is used for providing and controlling the pressure head of the pipeline assembly water circulation, and determining whether the test requirement of the ship system is met or not according to the pressure head indicated by the first pressure transmitter.
Specifically, in the embodiment of the invention, one end of the water outlet pipeline is connected with the water tank, the other end of the water outlet pipeline is connected with the water inlet of the ship system, the water outlet pipeline is provided with a centrifugal pump and a regulating valve, the centrifugal pump is used for providing a pressure head of the pipeline assembly water circulation, and the regulating valve is used for regulating a resistance coefficient to control the pressure head indicated by the pressure transmitter.
It can be understood that two external interfaces are reserved on the pipeline component of the guarantee system, namely a water outlet of the water outlet pipeline and a water return port of the water return pipeline, the water outlet is connected with a water inlet of the pipeline of the ship system, and the water return port is connected with a water outlet of the pipeline of the ship system. However, the number of external interfaces of the guarantee system can be expanded by arranging multiple channels at the water outlet and the water inlet, so that the guarantee system can serve the multi-inlet and multi-outlet ship system land test. In order to reduce the influence of the vibration of the guarantee system on the ship system equipment, flexible connecting pipes are arranged at the interfaces of the guarantee system and the ship system.
The centrifugal pump is used for providing the pressure head for guaranteeing the water circulation of the system, and the regulating valve is used for regulating the resistance coefficient of the guaranteeing system, so that the pressure head generated by the centrifugal pump of the guaranteeing system is completely consumed by the guaranteeing system, and the guaranteeing system only provides the water for the ship system test without generating additional pressure heads. The first pressure transmitter is used for indicating and guaranteeing the integral pressure head of the ship pipeline of the system, and the indication number of the first pressure difference transmitter is generally zero by adjusting the regulating valve during test. Therefore, the control valve is adjusted, so that the guarantee system can provide enough water for the system to be tested without generating additional pressure heads, the system state in the test is consistent with the actual running state, the working state of key equipment of the ship system is accurately simulated, the problem of the ship system is found in advance, and the risk of the ship system after boarding is solved.
It should be noted that, in this embodiment, the flow characteristic curve of the regulating valve is exponential, and the diameter and pressure resistance of the regulating valve are consistent with those of the guaranteeing system pipeline. In addition, the first differential pressure transmitter is connected with a position where a pipeline of the protection system is close to an external interface, the precision of the first differential pressure transmitter is not lower than 5% of the rated lift of a water pump contained in the pipeline of the ship system to be detected, the unilateral pressure bearing capacity of the first differential pressure transmitter is kept consistent with that of the pipeline of the protection system, a water outlet of the protection system is connected with the positive end of the first differential pressure transmitter, and a water inlet of the protection system is connected with the negative end of the first differential pressure transmitter.
In some embodiments, the water outlet pipeline further comprises a second pressure transmitter, and the second pressure transmitter is connected in parallel to two ends of the centrifugal pump and is used for monitoring the working state of the centrifugal pump. Preferably, the water outlet pipeline further comprises a pressure gauge arranged at the outlet of the centrifugal pump, and the integral pressure of the guarantee system can be monitored through the pressure gauge. Further, the water outlet pipeline further comprises a thermometer arranged between the regulating valve and the first pressure transmitter, and the water supply temperature can be monitored through the thermometer. In addition, the outlet line further includes a flow meter disposed between the regulator valve and the first pressure transmitter for monitoring the flow of the support system centrifugal pump.
It is worth to say that, when the centrifugal pump parameter is selected, the rated flow of the centrifugal pump is determined according to the maximum water consumption of the ship system in the state of the system to be verified. When a general ship system pipeline is designed, the system pipeline comprises a pressure head required by a pump for providing system water circulation, and the pump has the information of system flow, flow resistance and the like considered when determining parameters, so that the flow of a centrifugal pump of a system can be ensured by referring to the flow determination of the pump in a ship system, and in order to prevent the system resistance from estimating to be smaller when the ship system is designed, the actual running flow is larger, and the rated flow of the centrifugal pump of the system is ensured to be 1.3-1.5 times of the maximum flow of the ship system to be tested. The pump lift parameter of the centrifugal pump is determined according to the flow resistance of the guaranteeing system when guaranteeing the rated flow of the centrifugal pump of the system, and in order to prevent inaccurate flow resistance estimation in design, the actual pump lift of the centrifugal pump is selected to be 1.2 times of the flow resistance of the guaranteeing system when guaranteeing the rated flow of the centrifugal pump. The suitability of a centrifugal pump selection can be simply determined by: and additionally taking a section of pipeline, connecting two external interfaces of the guarantee system, keeping the pipeline valves of all the guarantee systems in a fully opened state, starting the centrifugal pump, observing the flow of the flowmeter of the guarantee system, and if the flow is larger than the rated flow of the centrifugal pump, selecting the pump properly, otherwise, selecting the pump inappropriately, and selecting the centrifugal pump with higher lift.
In summary, the system for guaranteeing the real ship working condition of the ship system is simple in structure, and can enable the guaranteeing system to provide sufficient water for the system to be tested by adjusting the adjusting valve without generating additional pressure heads, so that the ship system state in the test is consistent with the actual running state, the key equipment working state of the ship system can be accurately simulated, problems of the system can be found in advance, and the risk of the system after boarding the ship is solved.
Meanwhile, the embodiment of the invention provides a test method of a guarantee system for simulating the real ship working condition of a ship system, which comprises the following steps:
after the guarantee system is connected with the ship system, a centrifugal pump is started to provide a pressure head of the pipeline assembly for water circulation, and an adjusting valve is adjusted to enable the indication of the first pressure transmitter to be zero.
In a specific implementation, the guarantee system and the ship system to be tested are connected at first, namely, the water outlet of the guarantee system is connected with the water inlet of the ship system, and the water return port of the guarantee system is connected with the water outlet of the ship system. And then, based on the test method of the ship system to be tested, the valve on the ship system to be tested is in a corresponding state (namely, the valve closing state required by the test is carried out), and other measuring instruments, pumps and the like are in standby states. All valves of the system are guaranteed to be in a full-open state, and other measuring instruments and pumps are guaranteed to be in a standby state. And starting a centrifugal pump of the guarantee system to fill the pipeline of the ship system with water, and if a high-point air discharge port exists in the pipeline of the ship system, carrying out high-point air discharge.
Then, a water pump in the ship system is started, a first pressure transmitter between a water outlet and a water inlet of the guarantee system is observed, at the moment, the indication number of the pressure transmitter is positive, and if the indication number is negative, the unreasonable selection of the parameters of the centrifugal pump of the guarantee system is indicated, and the parameters are selected again.
And then adjusting the opening of the regulating valve to enable the indication of the first differential pressure transmitter to be zero. At the moment, the working state of the ship system to be tested is the same as that of a real ship, the actual working states of the mechanical states, the water quantities of different equipment and the like are the same, and the test is completed according to the test method of the ship system to be tested.
In summary, according to the test method provided by the invention, through adjusting the regulating valve, the guarantee system can supply enough water to the system to be tested without generating an additional pressure head, so that the ship system state in the test is consistent with the actual running state, the working state of key equipment of the ship system can be accurately simulated, the system has problems in advance, and the risk after the system is on the ship is solved.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a guarantee system of simulation ship system real ship operating mode which characterized in that includes:
a water tank;
a pipeline assembly including a water outlet pipeline and a water return pipeline for forming a circulating waterway between the water tank and the ship system;
a first pressure transmitter disposed between the water outlet line and the water return line;
the water outlet pipeline is used for providing and controlling the pressure head of the pipeline assembly water circulation, and determining whether the test requirement of the ship system is met or not according to the pressure head indicated by the first pressure transmitter;
one end of the water outlet pipeline is connected with the water tank, the other end of the water outlet pipeline is connected with the water inlet of the ship system, a centrifugal pump and a regulating valve are arranged on the water outlet pipeline, the centrifugal pump is used for providing a pressure head of the pipeline assembly water circulation, the regulating valve is used for regulating a resistance coefficient to control the pressure head indicated by the first pressure transmitter, wherein after the protection system is connected with the ship system, the centrifugal pump is started to provide the pressure head of the pipeline assembly water circulation, and the regulating valve is regulated to enable the indication number of the first pressure transmitter to be zero;
one end of the water return pipeline is connected with the water tank, the other end of the water return pipeline is connected with a water outlet of the ship system, and an isolation valve is further arranged between the water tank and the first pressure transmitter;
and the water outlet pipeline further comprises a second pressure transmitter, and the second pressure transmitter is connected in parallel with two ends of the centrifugal pump and used for monitoring the working state of the centrifugal pump.
2. A system for simulating the operation of a marine vessel system according to claim 1, wherein said water outlet line further comprises a pressure gauge disposed at the outlet of said centrifugal pump.
3. A system for simulating the operation of a marine vessel system according to claim 1, wherein said outlet conduit further comprises a thermometer positioned between said regulator valve and said first pressure transmitter.
4. A system for simulating the operation of a marine vessel system according to claim 1, wherein said outlet conduit further comprises a flow meter disposed between said regulator valve and said first pressure transmitter.
5. The system for guaranteeing the real ship working condition of the simulated ship system according to claim 1, wherein isolation valves are arranged between the water tank and the centrifugal pump, between the centrifugal pump and the regulating valve and between the regulating valve and the first pressure transmitter.
6. A system for securing a real ship condition of a simulated marine system as claimed in claim 1, wherein: the rated flow of the centrifugal pump is 1.3 to 1.5 times of the maximum flow of the ship system, and the lift of the centrifugal pump is 1.2 times of the flow resistance when the valve of the system is fully opened under the rated flow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111493271.1A CN114212210B (en) | 2021-12-08 | 2021-12-08 | Guarantee system and test method for simulating real ship working condition of ship system |
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| CN202111493271.1A CN114212210B (en) | 2021-12-08 | 2021-12-08 | Guarantee system and test method for simulating real ship working condition of ship system |
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| CN114212210A CN114212210A (en) | 2022-03-22 |
| CN114212210B true CN114212210B (en) | 2023-05-19 |
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| CN114593906A (en) * | 2022-03-25 | 2022-06-07 | 无锡市宏源弹性器材有限公司 | Reliability test equipment for shafting end face sealing device for ship |
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| CN108750002B (en) * | 2018-04-12 | 2020-03-31 | 江苏科技大学 | Simplified calculation simulation device and simulation method for ship ice collision in aqueous medium |
| CN209766558U (en) * | 2019-01-28 | 2019-12-10 | 武汉海博瑞科技有限公司 | Fuel cell test device |
| CN109745760B (en) * | 2019-02-28 | 2021-10-29 | 中国船舶重工集团公司第七二五研究所 | Performance test system and method for marine ballast water filter |
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