CN1133017C - Uniterrupted hydraulic source for liquid-sensing deep sea hydraulic system - Google Patents
Uniterrupted hydraulic source for liquid-sensing deep sea hydraulic system Download PDFInfo
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- 239000003921 oil Substances 0.000 description 12
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Abstract
一种液感型深海水下液压系统不间断液压源。它将电磁换向阀和带飞轮的高速液压马达串接在液压总线供油路上，单向阀跨接在液压总线供油路和液压总线回油路间，单向阀的输出端和电磁换向阀的输出端、带飞轮的高速液压马达的输入端连接。液压源起动时，首先为高速液压马达和飞轮，储存应急情况下所需要的能量。液压系统正常工作时，高速液压马达和飞轮可确保供油流量的连续性和平稳性。液压源突然失压时，电磁换向阀切断，将液压源与高速液压马达上游隔离；与此同时，由于飞轮的大惯性，通过高速液压马达的流量不能突变，因而仍有相当的流量通过液压马达流向负载，释放出所储存的能量，供液压系统完成所有必需的液压应急动作；该流量与液压系统所处的水深无关。
A liquid-sensing type deep sea underwater hydraulic system uninterrupted hydraulic source. It connects the electromagnetic reversing valve and the high-speed hydraulic motor with flywheel in series on the oil supply circuit of the hydraulic bus. It is connected to the output end of the valve and the input end of the high-speed hydraulic motor with flywheel. When the hydraulic source is started, the high-speed hydraulic motor and flywheel are the first to store the energy needed in emergency situations. When the hydraulic system is working normally, the high-speed hydraulic motor and flywheel can ensure the continuity and stability of the oil supply flow. When the hydraulic source suddenly loses pressure, the electromagnetic reversing valve is cut off to isolate the hydraulic source from the upstream of the high-speed hydraulic motor; at the same time, due to the large inertia of the flywheel, the flow through the high-speed hydraulic motor cannot change suddenly, so there is still a considerable flow through the hydraulic pressure. The motor flows to the load, releasing the stored energy for the hydraulic system to perform all necessary hydraulic emergency actions; this flow is independent of the water depth in which the hydraulic system is located.
Description
技术领域Technical field
本发明涉及增压器或液体压力转换器。The present invention relates to boosters or liquid pressure converters.
背景技术 Background technique
深海水下液压系统一般采用回油压力与外界水压自动平衡的自适应油箱，其输出压力的绝对值等于液压源的输出压差加上外界水压的和。因此，传统液压系统通过单个蓄能器储存能量，提供应急状态下使用的方法受液压源所处水深不确定性的影响严重，几乎无法正常工作。The deep sea underwater hydraulic system generally adopts an adaptive oil tank that automatically balances the oil return pressure and the external water pressure, and the absolute value of its output pressure is equal to the sum of the output pressure difference of the hydraulic source plus the external water pressure. Therefore, the traditional hydraulic system uses a single accumulator to store energy, and the method used in emergency conditions is seriously affected by the uncertainty of the water depth of the hydraulic source, and it is almost impossible to work normally.
例如：对于一个输出压差为10MPa的液压系统，选用了一个容积为10升的蓄能器。如果在地面上，可预充5Mpa的压力，当液压系统突然失压时，最多可以释放3.9升的液压油。而将该蓄能器用于深海水下液压系统，至少需要预充20Mpa的压力，它不仅在水下1000米以内无法工作，在1000米以上时可释放的流量也变得非常小，如下表所示(水深单位为米、流量单位为升)：
因此，目前深海水下液压系统都急需一种储能效率较高的不间断液压能供给装置，以便在其失去动力源、甚至于失去全部供电的情况下仍然可以完成所有必需的液压应急动作。Therefore, the current deep sea underwater hydraulic system is in urgent need of an uninterrupted hydraulic energy supply device with high energy storage efficiency, so that all necessary hydraulic emergency actions can still be completed when it loses its power source, or even loses all power supply.
发明内容Contents of Invention
本发明的目的是设计一种液感型深海水下液压系统不间断液压源，在深海水下失去力源、甚至于失去全部供电的情况下仍然可以完成所有必需的液压应急动作。The purpose of the present invention is to design an uninterrupted hydraulic source for a liquid-sensing deep-sea underwater hydraulic system, which can still complete all necessary hydraulic emergency actions when the deep-sea underwater loses its power source, or even loses all power supply.
本发明采用的技术方案是：它包括电磁换向阀、带飞轮的高速液压马达、单向阀；将电磁换向阀和带飞轮的高速液压马达串接在液压总线供油路上，单向阀跨接在液压总线供油路和液压总线回油路间，单向阀的输出端和电磁换向阀的输出端、带飞轮的高速液压马达的输入端连接。The technical solution adopted by the present invention is: it includes an electromagnetic reversing valve, a high-speed hydraulic motor with a flywheel, and a one-way valve; Bridged between the oil supply circuit of the hydraulic bus and the oil return circuit of the hydraulic bus, the output end of the check valve is connected with the output end of the electromagnetic reversing valve and the input end of the high-speed hydraulic motor with a flywheel.
本发明具有的有益效果是：液压源起动时，首先为高速液压马达和飞轮，储存应急情况下所需要的能量。液压系统正常工作时，高速液压马达和飞轮可确保供油流量的连续性和平稳性。液压源突然失压时，电磁换向阀切断，将液压源与高速液压马达上游隔离；与此同时，由于飞轮的大惯性，通过高速液压马达的流量不能突变，因而仍有相当的流量通过液压马达流向负载，释放出所储存的能量，供液压系统完成所有必需的液压应急动作；该流量与液压系统所处的水深无关。The beneficial effect of the present invention is that: when the hydraulic source is started, the high-speed hydraulic motor and the flywheel firstly store the energy needed in emergency situations. When the hydraulic system is working normally, the high-speed hydraulic motor and flywheel can ensure the continuity and stability of the oil supply flow. When the hydraulic source suddenly loses pressure, the electromagnetic reversing valve is cut off to isolate the hydraulic source from the upstream of the high-speed hydraulic motor; at the same time, due to the large inertia of the flywheel, the flow through the high-speed hydraulic motor cannot change suddenly, so there is still a considerable flow through the hydraulic pressure. The motor flows to the load, releasing the stored energy for the hydraulic system to perform all necessary hydraulic emergency actions; this flow is independent of the water depth in which the hydraulic system is located.
附图说明Description of drawings
附图是本发明的结构原理示意图。Accompanying drawing is the structural principle schematic diagram of the present invention.
具体实施方式 Detailed ways
如附图所示，它包括电磁换向阀1、带飞轮的高速液压马达2、单向阀3；将电磁换向阀1和带飞轮的高速液压马达2串接在液压总线供油路A上，单向阀3跨接在液压总线供油路A和液压总线回油路B间，单向阀3的输出端和电磁换向阀1的输出端、带飞轮的高速液压马达2的输入端连接。As shown in the figure, it includes
图中T表示自适应油箱的回油压力，该压力与外界海水的压力相等；p表示该液压源的输出压力，其绝对值等于液压源的输出压差加上外界水压的和；T in the figure represents the oil return pressure of the adaptive oil tank, which is equal to the pressure of the external sea water; p represents the output pressure of the hydraulic source, and its absolute value is equal to the sum of the output pressure difference of the hydraulic source plus the external water pressure;
p1表示高速液压马达输入端的压力，该压力在电磁换向阀通电时等于液压源的输出压力p，当电磁换向阀断电时则等于自适应油箱的回油压力T；为确保飞轮储存的能量足够，要求液压源的输出流量基本恒定，或要求负载流量大于飞轮的最低储能限。p 1 represents the pressure at the input end of the high-speed hydraulic motor, which is equal to the output pressure p of the hydraulic source when the electromagnetic reversing valve is powered on, and equal to the return oil pressure T of the adaptive oil tank when the electromagnetic reversing valve is powered off; The energy is sufficient, and the output flow of the hydraulic source is required to be basically constant, or the load flow is required to be greater than the minimum energy storage limit of the flywheel.
工作过程：液压源起动时，首先为高速液压马达和飞轮2，储存应急情况下所需要的能量。液压系统正常工作时，高速液压马达和飞轮2可确保供油流量的连续性和平稳性。液压源突然失压时，电磁换向阀1切断，将液压源与高速液压马达2上游隔离；与此同时，由于飞轮的大惯性，通过高速液压马达的流量不能突变，因而仍有相当的流量通过液压马达流向负载，释放出所储存的能量，供液压系统完成所有必需的液压应急动作；另外，由于流入p1容腔的流量小于流出的流量，p1压力下降直到单向阀3在自适应油箱回油压力的作用下打开，补充流到高速马达的流量。高速液压马达在负载的作用下渐减速，直到释放完所有储存的能量。Working process: When the hydraulic source is started, the high-speed hydraulic motor and
具体实施例子：对于如附图所示的不间断液压源，可采用上海液压泵厂生产的A2F12R6.1斜轴式柱塞液压马达，在深海水下液压系统这类回油背压足够的工况下，其最高转速可达6000rpm，如果选用排量为12ml/r的马达，飞轮的外形尺寸取φ240×100，其转动惯量为0.25kgm2，在10MPa的负载压力下，最多可释放4.9升的液压油。且该流量与液压系统所处的水深无关。Specific implementation example: For the uninterrupted hydraulic pressure source shown in the attached figure, the A2F12R6.1 oblique-axis plunger hydraulic motor produced by Shanghai Hydraulic Pump Factory can be used. Under normal circumstances, its maximum speed can reach 6000rpm. If a motor with a displacement of 12ml/r is selected, the outer dimension of the flywheel is φ240×100, and its moment of inertia is 0.25kgm 2 . Under a load pressure of 10MPa, it can release up to 4.9 liters of hydraulic oil. And the flow has nothing to do with the water depth of the hydraulic system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02111426 CN1133017C (en) | 2002-04-17 | 2002-04-17 | Uniterrupted hydraulic source for liquid-sensing deep sea hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02111426 CN1133017C (en) | 2002-04-17 | 2002-04-17 | Uniterrupted hydraulic source for liquid-sensing deep sea hydraulic system |
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| CN1375638A CN1375638A (en) | 2002-10-23 |
| CN1133017C true CN1133017C (en) | 2003-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439720C (en) * | 2006-10-27 | 2008-12-03 | 中国海洋大学 | Deep sea water pressure type hydraulic drive system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434535B (en) * | 2011-12-08 | 2014-04-30 | 中国海洋石油总公司 | Equivalent simulation testing system of hydraulic control system of underwater production facility |
| CN109870347A (en) * | 2019-04-17 | 2019-06-11 | 中国科学院深海科学与工程研究所 | Testing system and method for mechanical properties of materials under ultra-high pressure in deep water |
| CN114278626B (en) * | 2021-12-23 | 2023-11-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Onboard emergency hydraulic system and method for electric supercharging energy storage flow compensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439720C (en) * | 2006-10-27 | 2008-12-03 | 中国海洋大学 | Deep sea water pressure type hydraulic drive system |
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