CN107504017A - A kind of hydraulic oil Intelligent purifying system of water conservancy gate hydraulic system - Google Patents

Abstract

The invention discloses an intelligent hydraulic oil purification system of a water conservancy gate hydraulic system, which comprises a plurality of gate driving oil cylinder hydraulic systems; each driving oil cylinder hydraulic system includes an oil tank, a working main pump, a high-pressure filter, a particle size detector and The proportional valve group distributes the oil to the left and right drive cylinders through the proportional valve group; the hydraulic oil in the oil tank is sent to the oil filter chamber through the oil filter pump, and returns to the oil tank after purification; There is an electromagnetic three-way valve, the first oil outlet of which communicates with the oil filter chamber, and the second oil outlet communicates with the bypass oil filter, and the bypass oil filter returns to the oil tank after purification; the hydraulic oil intelligent purification system of the present invention The intelligent graded oil filtration and purification structure is efficient and reasonable, and is automatically completed by the central controller, avoiding tedious and erroneous manual operations, and starting the corresponding grade purification treatment as soon as the oil deteriorates, so that the hydraulic oil is always in a high-quality state, ensuring Whether the water conservancy gate can operate efficiently, agilely and without accidents.

Description

A hydraulic oil intelligent purification system for a water conservancy gate hydraulic system

technical field

The invention relates to a water conservancy facility, in particular to a hydraulic system facility for a water conservancy gate.

Background technique

With the development of global urbanization, the establishment of large-scale water conservancy projects and social power consumption have always been a concern of people. The construction of high-quality and efficient large-scale water conservancy and hydropower projects will undoubtedly alleviate social problems to a certain extent To cope with various natural needs and social electricity demand, among them, if the water conservancy system is to operate efficiently, it must control all the water conservancy gates of the water conservancy facilities efficiently and quickly, without obstacles and accidents. Generally, a large-scale water conservancy facility has several Ten single-body gates, which are huge and heavy, are opened and closed by two gate-driven cylinders connected to the upper end of the gate. The hydraulic system of the gate-driven cylinders and the oil filtration and purification system can make the oil The hydraulic oil in the road system is stable and maintained at a very high quality level, which is the key to whether all gates can operate efficiently, agilely, without obstacles and accidents.

The hydraulic system of the gate drive cylinder generally requires the quality of hydraulic oil to reach NAS 9. If the hydraulic oil is contaminated, if it cannot be found, replaced, and purified in time, it will cause damage to hydraulic oil pumps, hydraulic pump station valve blocks, filters and other components. Blockage or jamming will affect the smooth opening and closing of the gate.

However, due to the lack of real-time detection methods for hydraulic oil products in the actual use process, the method of manual periodic sampling and detection is generally adopted, and the oil is replaced after the oil quality is found to be unqualified. The inspection and replacement process of the shut-down oil is cumbersome, and the unqualified oil that is replaced is basically treated as a scrap product, and the consumption of hydraulic oil is relatively large.

Contents of the invention

The technical problem to be solved by the present invention is to provide a more efficient and reasonable hydraulic oil intelligent purification system of the water conservancy gate hydraulic system, which can monitor and classify the oil quality of the hydraulic oil in real time, and start the graded oil filtration and purification accordingly according to the real-time oil quality , to ensure that the hydraulic oil in the hydraulic system of the water conservancy gate is always in a stable state of high quality, so as to ensure that the water conservancy gate can operate efficiently and agilely, without obstacles and accidents.

The technical scheme that the present invention adopts for solving the problems of the technologies described above is:

An intelligent hydraulic oil purification system for a water conservancy gate hydraulic system, including a plurality of gate-driven cylinder hydraulic systems;

Each of the gate drive cylinder hydraulic systems includes an oil tank, the hydraulic oil in the oil tank is delivered to the proportional valve group through the oil delivery pipeline, and the oil is distributed by the proportional valve group and then delivered to the left side through the oil distribution pipeline. 1. The right drive oil cylinder, on the oil delivery pipeline from the oil tank to the proportional valve group, a working main pump, a high pressure filter and a particle size detector are arranged in series, and the hydraulic oil of the left and right drive oil cylinders passes through the oil return pipeline of the oil cylinder Return to the oil tank; the hydraulic oil in the oil tank is transported to the oil filter chamber through the oil filter pipeline through the oil filter pump, and the hydraulic oil purified by the oil filter chamber is returned to the said oil filter through the first oil filter oil return pipeline Oil tank; several hydraulic systems of gate-driven oil cylinders share an oil filter chamber;

In each of the gate-driven cylinder hydraulic systems, an electromagnetic three-way valve is arranged in series between the filter oil pump and the oil filter chamber, and the first oil outlet of the electromagnetic three-way valve is connected to the filter The oil chamber is connected, and the second oil outlet of the electromagnetic three-way valve is connected to a bypass oil filter, and the hydraulic oil purified by the bypass oil filter is returned to the oil tank through the second oil return pipeline. ;

The hydraulic oil intelligent purification system is provided with a central control unit, which is respectively connected with the particle size detector, proportional valve group, oil filter pump and electromagnetic three-way valve in the hydraulic system of each gate drive cylinder, and the central control unit The unit adjusts the oil output distribution ratio of the proportional valve group, and at the same time collects hydraulic oil product data from the particle size detector in real time, and presets the secondary oil product inferiority threshold; when the particle size detector collects When the oil quality reaches the threshold of the first level, the central control unit starts the oil filter pump and opens the electromagnetic three-way valve to the second oil outlet. At this time, the hydraulic oil in the oil tank passes through the bypass After the oil filter is purified, it returns to the oil tank; when the badness of the oil collected from the particle size detector reaches the second-level threshold, the central control unit starts the oil filter pump and opens the electromagnetic three-way valve to The first oil outlet, at this time, the hydraulic oil in the oil tank returns to the oil tank after being purified by the filter oil chamber.

The hydraulic oil intelligent purification system of the present invention uniquely sets up a three-stage oil filter purification treatment structure for the hydraulic oil management of the hydraulic system of the water conservancy gate:

Normal purification is performed by the high-pressure filter in the main working circuit. As long as the main working circuit of the gate is running, the high-pressure filter element will purify the hydraulic oil;

The first-stage purification controlled by the central control unit is performed by the bypass oil filter, that is, when the real-time detection and collection of the particle size detector data by the central processing unit reaches the first-stage oil inferiority threshold, it is controlled by the central processing unit to open Filter the oil pump and open the electromagnetic three-way valve to the second oil outlet, at this time, the hydraulic oil in the oil tank is purified by the bypass oil filter and then returns to the oil tank;

The second-level purification controlled by the central control unit is performed by the oil filter chamber, that is, when the real-time detection and collection of the particle size detector data by the central processing unit reaches the second-level oil quality threshold, the central processing unit controls to turn on the oil filter pump , and the electromagnetic three-way valve will be opened to the first oil outlet, and at this time, the hydraulic oil in the oil tank will flow back to the oil tank after being purified by the oil filter chamber with high-efficiency oil filtering effect;

The three-stage oil filtration and purification structure is efficient and reasonable, and all detection and control are automatically completed by the central controller, which avoids the cumbersome manual operation and the possibility of mistakes, and can be detected with high sensitivity at the first time when the oil quality in the oil circuit deteriorates. The corresponding and most suitable level of purification treatment can be started in a timely and reliable manner, so that the hydraulic oil in the hydraulic system of the water conservancy gate is always in a stable state of high quality, so as to ensure that the water conservancy gate can operate efficiently and quickly, without obstacles and accidents.

Description of drawings

Fig. 1 is a structural schematic diagram of the hydraulic oil intelligent purification system of the water conservancy gate hydraulic system according to the present invention.

In the picture:

100. Gate drive cylinder hydraulic system

1. Oil tank 2. Oil delivery pipeline

3. Working main pump 4. High pressure filter

5. Particle size detector 6. Proportional valve group

7. Oil distribution pipe 8. Left drive oil cylinder

9. Right drive oil cylinder 10. Oil cylinder return pipe

11. Oil filter pipe 12. Oil filter pump

13. The first filter oil return pipeline 14. Electromagnetic three-way valve

15. Bypass oil filter 16. Second oil filter oil return pipeline

200. Oil filter chamber

300. Central control unit

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 shows a hydraulic oil intelligent purification system of a water conservancy gate hydraulic system, including several gate-driven cylinder hydraulic systems 100;

Each of the gate drive cylinder hydraulic systems 100 includes an oil tank 1, the hydraulic oil in the oil tank 1 is delivered to the proportional valve group 6 through the oil delivery pipeline 2, and after the oil is distributed by the proportional valve group 6, it is divided into three groups. The oil pipeline 7 is delivered to the left and right driving cylinders 8 and 9 respectively, and the oil delivery pipeline 2 is provided with a working main pump 3, a high-pressure filter 4 and a particle size detector 5 in sequence from the oil tank 1 to the proportional valve group 6 , the hydraulic oil of the left and right drive cylinders 8, 9 returns to the oil tank 1 through the oil cylinder return pipeline 10; , the hydraulic oil purified by the oil filter chamber 200 returns to the oil tank 1 through the first oil filter oil return pipeline 13; several gate-driven cylinder hydraulic systems 100 share one oil filter chamber 200;

In each of the gate-driven cylinder hydraulic systems 100, an electromagnetic three-way valve 14 is arranged in series between the oil filter pump 12 and the oil filter chamber 200, and the first oil outlet of the electromagnetic three-way valve 14 The port communicates with the oil filter chamber 200, and the second oil outlet of the electromagnetic three-way valve 14 communicates with a bypass oil filter 15, and the hydraulic oil purified by the bypass oil filter 15 passes through the second filter. The oil return pipeline 16 returns to the oil tank 1;

The hydraulic oil intelligent purification system is provided with a central control unit 300, which is connected with the particle size detector 5, the proportional valve group 6, the oil filter pump 12 and the electromagnetic three-way valve 14 in each of the gate-driven cylinder hydraulic systems 100 respectively. Communication connection, the central control unit 300 adjusts the oil output distribution ratio of the proportional valve group 6, and at the same time collects hydraulic oil product data from the particle size detector 5 in real time, and presets the secondary oil product inferiority threshold; When the badness of the oil collected from the particle size detector 5 reaches the first level threshold, the central control unit 300 starts the oil filter pump 12 and opens the electromagnetic three-way valve 14 to the second oil outlet, At this time, the hydraulic oil in the oil tank 1 is purified by the bypass oil filter 15 and then returns to the oil tank 1; when the oil quality collected from the particle size detector 5 reaches the second grade threshold, The central control unit 300 starts the oil filter pump 12 and opens the electromagnetic three-way valve 14 to the first oil outlet. At this time, the hydraulic oil in the oil tank 1 is purified by the oil filter chamber 200 and then returns to the fuel tank1.

It has been verified by running tests that the intelligent graded oil filtration and purification structure of the present invention is efficient and reasonable, and all detection and control are automatically completed by the central controller, which avoids cumbersome manual operations and the possibility of mistakes. The corresponding and most suitable level of purification treatment can be started in a timely and reliable manner with high sensitivity, so that the hydraulic oil in the hydraulic system of the water conservancy gate is always in a high-quality state stably, so as to ensure that the water conservancy gate can be operated efficiently, agilely, and seamlessly. Barriers run without incident.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should be defined by the claims.

Claims (1)

1. a kind of hydraulic oil Intelligent purifying system of water conservancy gate hydraulic system, including several gate drive cylinder hydraulic pressure systems System；

Each described gate drive cylinder hydraulic system includes a fuel tank, and the hydraulic oil in the fuel tank is by sending oil pipe Road is transported to ratio valve group, and left and right driving oil cylinder is delivered to respectively through oil distributing pipe road after the proportioning valve group distributes oil mass, Send and gone here and there successively provided with work main pump, high pressure filter and granule detecting instrument, institute from the fuel tank to ratio valve group on oil-piping The hydraulic oil for stating left and right driving oil cylinder returns to described fuel tank by oil cylinder oil returning tube；Hydraulic oil in the fuel tank passes through Oil strain pipeline is delivered to oil strain room through oil strain pump, and the hydraulic oil through oil strain room purified treatment is again through the first oil strain oil returning tube Return to described fuel tank；Some gate drive cylinder hydraulic systems share an oil strain room；It is characterized in that：

In each gate drive cylinder hydraulic system, also string is provided with an electricity between described oil strain pump and oil strain room Magnetic triple valve, the first oil-out of the three-way solenoid valve connect with the oil strain room, and the second of the three-way solenoid valve is fuel-displaced Mouth is communicated to a bypath oil filter, and the hydraulic oil through the bypath oil filter purified treatment returns to institute through the second oil strain oil returning tube The fuel tank stated；

Described hydraulic oil Intelligent purifying system is provided with a central control unit, respectively with each gate drive cylinder liquid Granule detecting instrument, ratio valve group, oil strain pump and three-way solenoid valve communication connection, the central control unit in pressure system are adjusted The fuel-displaced allocation proportion of the ratio valve group is saved, while hydraulic oil oil product data are gathered in real time from the granule detecting instrument, and The bad degree threshold value of default two level oil product；It is described when the bad degree of the oil product gathered from the granule detecting instrument reaches first order threshold value Central control unit starts oil strain pump and the three-way solenoid valve is opened into the second oil-out, now the liquid in the fuel tank Press oil the fuel tank that flowed back after bypath oil filter purification；When the bad degree of the oil product gathered from the granule detecting instrument reaches During the threshold value of the second level, the central control unit starts oil strain pump and the electromagnetism two-port valve is opened into the first oil-out, this Hydraulic oil in Shi Suoshu fuel tanks flows back the fuel tank after the oil strain room purifies.