Hydraulic valve capable of realizing online self-flushing and maintenance and its application method
A hydraulic valve and self-flushing technology, applied in the field of hydraulic valves, can solve problems such as no simultaneous online flushing function, serious environmental pollution, single online maintenance, etc., achieve online quick maintenance and repair, overcome heavy workload, and save flushing time Effect
Active Publication Date: 2017-11-21
WISDRI ENG & RES INC LTD
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Problems solved by technology
The disadvantages of this method are heavy workload, labor and time-consuming, repeated disassembly and assembly, serious secondary pollution, serious oil waste, serious environmental pollution, and many dead ends; The group is flushed, so that a large amount of particles and impurities are deposited in the dead space of the spool clearance in the control valve, which may cause serious consequences
[0004] At present, there are also some hydraulic maintenance valves, but usually only a single online maintenance can be achieved, and there is no simultaneous online flushing function, which cannot provide better and more convenient comprehensive support and guarantee for operation, maintenance, repair, and flushing.
Method used
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] see Figure 1-Figure 5 , a hydraulic valve that can realize online self-flushing and maintenance, including a valve body 1 and two three-way valves located on both sides of the valve body 1, that is, the first three-way valve 11 and the second three-way valve 12 are located on the valve body 1, the third three-way valve 13 and the fourth three-way valve 14 are located on the other side of the valve body 1; the valve body 1 is provided with P oil passage 16, T oil passage 17, A oil passage 18, B Oil circuit 15, PB oil circuit 19, TA oil circuit 20, P oil circuit 16 is composed of the first P...
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The invention discloses a hydraulic valve available for online self flushing and maintenance. The hydraulic valve comprises a valve body and four three-way valves, and the four three-way valves are positioned on two sides of the valve body respectively. Oil ways P, T, A, B, PB and TA are arranged in the valve body, each of the oil ways P, T, A and B consists of two sections, one end of each section is communicated with the four three-way valves, and the other end of each section is communicated with holes in the valve body. One end of the oil way PB is communicated with a second outlet of a first three-way valve, and the other end of the oil way PB is communicated with a second outlet of a second three-way valve. One end of the oil way TA is communicated with a second outlet of a third three-way valve, and the other end of the oil way TA is communicated with a second outlet of a fourth three-way valve. Balls of the three-way valves are arranged at corresponding oil way junctions to realize communication of the corresponding oil ways. The invention further provides a utilization method of the hydraulic valve available for online self flushing and maintenance. Online flushing and online maintenance can be realized by the hydraulic valve and the utilization method thereof.
Description
technical field [0001] The invention relates to the field of valves, in particular to a hydraulic valve capable of realizing online self-flushing and maintenance and a use method thereof. Background technique [0002] According to relevant statistics, in the hydraulic system, more than 60% of equipment failures come from oil pollution. Oil particle pollution is known as the number one killer of hydraulic equipment. Oil particle pollution is also the focus and difficulty of hydraulic equipment maintenance and repair. Keeping the system oil clean is difficult and arduous work, and it is also an important guarantee for the normal operation of the system. Practice has proved that the most direct and effective method to solve oil pollution is loop circulation filtration and flushing. According to the relevant operation and maintenance specifications, the hydraulic system installed for the first time must be circulated, filtered and flushed through the entire system piping, and c...
Claims
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IPC IPC(8): F16K11/22
CPCF16K11/22
Inventor 向思遇
Owner WISDRI ENG & RES INC LTD