CN102852871B - Hydraulic system for jacking top cover in loosening reactor top cover - Google Patents
Hydraulic system for jacking top cover in loosening reactor top cover Download PDFInfo
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- CN102852871B CN102852871B CN201210347480.XA CN201210347480A CN102852871B CN 102852871 B CN102852871 B CN 102852871B CN 201210347480 A CN201210347480 A CN 201210347480A CN 102852871 B CN102852871 B CN 102852871B
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Abstract
The invention discloses a hydraulic system for jacking a top cover in loosening the reactor top cover. The hydraulic system comprises an oil tank, a filter, a hydraulic pump, a first three-position four-way solenoid valve, an oil distribution device and a plurality of hydraulic cylinders. The oil distribution device comprises an oil distribution flow passage and oil cylinders as many as the hydraulic cylinders. An output port B of the first three-position four-way solenoid valve and cavities below inner plungers of the oil cylinders of the oil distribution device are communicated with the oil distribution flow passage. A hydraulic cylinder hoisting oil control pipeline is disposed between an upper oil access of each oil cylinder and an output port B of the first three-position four-way solenoid valve. Each hydraulic cylinder hoisting oil control pipeline comprises a three-position four-way solenoid valve which is communicated with the first three-position four-way solenoid valve, the oil distribution device and the hydraulic cylinders. Automatic control is achieved during reactor top cover loosening, labor intensity is lowered for operators, time for staying at a radioactive area is reduced for the operators, work efficiency is improved, and levelness of the reactor top cover during loosening is guaranteed.
Description
Technical field
The present invention relates to reactor maintenance and retired technical field, the hydraulic system of jacking top cover during specifically for loosening reactor lid.
Background technique
Reactor lid and pressure container cylinder adopt seam to coordinate, and matching gap is minimum, and pass through long-play post gap place and assembled macro-corrosion product, make to have produced between the two certain cohesive force.When top cover is become flexible, not only to overcome the cohesive force between the two, need to guarantee that in top cover jacking process, top cover keeps certain levelness, reaching loosening reactor lid, prevent piling top cover and pressure container cylinder is stuck and the object of rupture pressure shell sealing surface simultaneously.People are carrying out when reactor is uncapped all adopting the mode of manpower rotational screw jack to become flexible reactor lid now, adopt the loosening reactor lid of existing mode to have that automaticity is low, the defect such as slow of regulating the speed, and need operator for a long time in active area operation, large to the harm of operator's health.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the hydraulic system of jacking top cover while providing for loosening reactor lid, when its solution reactor lid is loosening, levelness is controlled difficulty greatly and the large difficult problem of labor intensity of operating staff, and by automation, controls to improve and regulate the speed and reduce the time that operator stop in radioactive area.
Object of the present invention is achieved through the following technical solutions: the hydraulic system of jacking top cover during for loosening reactor lid, comprise fuel tank, filter, oil hydraulic pump, the first three position four-way electromagnetic valve, minute oily device and a plurality of oil hydraulic cylinder, described fuel tank, filter and oil hydraulic pump are connected in turn, and the pressure oil import P of the liquid outlet of oil hydraulic pump and the first three position four-way electromagnetic valve connects, within described minute, oily device comprises minute oily runner and the oil cylinder suitable with oil hydraulic cylinder quantity, in described oil cylinder, be provided with and be flexibly connected with its inwall and divide grease trap to form the plunger of upper and lower two cavitys, the oil return inlet T of described the first three position four-way electromagnetic valve is connected fuel tank, the delivery outlet B of the first three position four-way electromagnetic valve and a plurality of oil cylinder inner plunger lower cavity are all connected with a minute oily runner for minute oily device, oil cylinder is provided with the upper oil inlet and outlet of connecting plunger upper part cavity, between the upper oil inlet and outlet of each oil cylinder and the delivery outlet A of the first three position four-way electromagnetic valve, be equipped with an oil hydraulic cylinder jacking fluid pilot line, described oil hydraulic cylinder jacking fluid pilot line comprises a three position four-way electromagnetic valve, the pressure oil import P of this three position four-way electromagnetic valve, delivery outlet A, oil return inlet T respectively with the delivery outlet A of the first three position four-way electromagnetic valve, the upper oil inlet and outlet of oil cylinder and the lower chamber of oil hydraulic cylinder are connected, the delivery outlet B cut-off of this three position four-way electromagnetic valve.Wherein, divide a plurality of oil cylinders sizes, volume in oily device identical, after the present invention should guarantee a minute oily device inner cylinder center pillar cavities is filled with beyond the Great Wall when setting, in it, hydraulic oil also can only make top cover that less displacement upwards occurs after entering oil hydraulic cylinder, should guarantee that top cover occurs just can open after repeatedly jacking.
Described oil hydraulic cylinder jacking fluid pilot line also comprises and is arranged in oil hydraulic cylinder and oil hydraulic cylinder jacking fluid pilot line a two-position four-way solenoid valve and the electronic one-way valve on pipeline between three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in oil hydraulic cylinder jacking fluid pilot line, pressure oil import P is connected with the oil return inlet T of three position four-way electromagnetic valve in it and the liquid entering hole of electronic one-way valve respectively, in oil hydraulic cylinder jacking fluid pilot line, the liquid outlet of electronic one-way valve and the lower chamber of an oil hydraulic cylinder are connected, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in described oil hydraulic cylinder jacking fluid pilot line.
Described the first three position four-way electromagnetic valve delivery outlet B is provided with the first one-way throttle valve with the pipeline of minute oily runner connection of minute oily device, the first three position four-way electromagnetic valve delivery outlet A is connected with the second one-way throttle valve, the oil hydraulic cylinder jacking fluid pilot line being connected with the first three position four-way electromagnetic valve is connected on the second one-way throttle valve, described oil hydraulic cylinder jacking fluid pilot line comprises an one-way throttle valve, this one-way throttle valve is arranged on the pipeline between the interior three position four-way electromagnetic valve delivery outlet A of oil hydraulic cylinder jacking fluid pilot line and the upper oil inlet and outlet of minute oily device inner cylinder.When giving oil hydraulic cylinder oiling, one-way throttle valve is controlled the oily flow of place oil circuit, reduces the impact force of hydraulic oil to system components and parts; When oil circuit is converted to oil return circuit, one-way throttle valve, without effect, makes hydraulic oil can get back to fast fuel tank.
The hydraulic system of jacking top cover during for loosening reactor lid, also comprise that oil hydraulic cylinder presses down fluid pilot line, described oil hydraulic cylinder presses down fluid pilot line and comprises the first two-position four-way solenoid valve and the 6th two-position four-way solenoid valve, pipeline between the pressure oil import P of described the first two-position four-way solenoid valve and oil hydraulic pump and the first three position four-way electromagnetic valve pressure oil import P is connected, the delivery outlet A cut-off of the first two-position four-way solenoid valve, the delivery outlet B of the delivery outlet B of the first two-position four-way solenoid valve and the 6th two-position four-way solenoid valve connects, the first two-position four-way solenoid valve oil return inlet T, the pipeline of the 6th two-position four-way solenoid valve delivery outlet A all and between the first three position four-way electromagnetic valve oil return inlet T and fuel tank connected, the 6th two-position four-way solenoid valve oil return inlet T cut-off, the upper cavity of described a plurality of oil hydraulic cylinders is all connected with the pressure oil import P of the 6th two-position four-way solenoid valve.
The hydraulic system of jacking top cover during for loosening reactor lid, also comprise relief valve, described fuel tank is connected with a total return line, total return line that the return line that the delivery outlet A three of the oil return inlet T of the oil return inlet T of described the first three position four-way electromagnetic valve, the first two-position four-way solenoid valve and the 6th two-position four-way solenoid valve connects is all connected with fuel tank is connected, total return line that described relief valve one end is connected with fuel tank is connected, and the pipeline between its other end and oil hydraulic pump and the first three position four-way electromagnetic valve pressure oil import P is connected.
Described oil hydraulic cylinder presses down fluid pilot line and also comprises reduction valve, and described reduction valve is arranged on the pipeline between the first two-position four-way solenoid valve pressure oil import P and oil hydraulic pump.
Within described minute, oily device comprises a minute oil clot, within described minute, oily runner is arranged in minute oil clot, described a plurality of oil cylinder is all connected on minute oil clot, divide oil clot to be provided with and connect main fluid import and export and fluid import and export of a plurality of branches that divide oily runner in it, the pipeline that divides oily device to be connected with the delivery outlet B of the first three position four-way electromagnetic valve is connected to the main fluid of minute oil clot and imports and exports, the quantity that branch's fluid is imported and exported is identical with the quantity of oil cylinder, oil cylinder is provided with the upper oil inlet and outlet of connecting its inner plunger upper cavity and the lower oil inlet and outlet of connecting its inner plunger lower cavity, the lower oil inlet and outlet of a plurality of oil cylinders is corresponding one by one with a plurality of branches fluid import and export position on minute oil clot.
In described oil hydraulic cylinder and minute oily device, the quantity of oil cylinder is four, and the quantity of described oil hydraulic cylinder jacking fluid pilot line is four.
Compared with prior art, the present invention has following beneficial effect: the present invention includes fuel tank, filter, oil hydraulic pump, the first three position four-way electromagnetic valve, divide oily device and a plurality of oil hydraulic cylinder, overall structure of the present invention is simple, be convenient to realize, when working, the present invention first by controlling the first three position four-way electromagnetic valve, make oil hydraulic pump fill with hydraulic oil in the cavity on the Cylinder Plunger top of a plurality of same volumes of minute oily device, by controlling the first three position four-way electromagnetic valve, make oil hydraulic pump to injection liquid force feed in the cavity of a plurality of Cylinder Plungers bottom of minute oily device again, and by controlling three position four-way electromagnetic valve in oil hydraulic cylinder jacking fluid pilot line, hydraulic oil in plunger upper part cavity in a plurality of oil cylinders of minute oily device is entered in oil hydraulic cylinder, and then by oil hydraulic cylinder jacking top cover certain height that rises, work and so forth, can make top cover continue to rise, the present invention is when in a plurality of oil hydraulic cylinders, the piston rod top lifting height difference of any two oil hydraulic cylinders is larger, can control three position four-way electromagnetic valve in many oil hydraulic cylinder jacking fluid pilot line, the oil hydraulic cylinder repairing less to top lifting height, when top lifting height error hour stops repairing, at this moment carry out again a plurality of hydraulic cylinder synchronous jackings or holding position constant.Adopt jacking reactor lid of the present invention, can realize the distant control to the loosening operation of reactor lid, improved the automaticity of reactor lid loosening technology, effectively reduce operator's labor intensity and radiation radioactive dose, and when the present invention applies, can adjust the top lifting height of single oil hydraulic cylinder, and then guarantee the levelness in top cover jacking process.
Accompanying drawing explanation
Fig. 1 is the structural representation in inventive embodiments.
In accompanying drawing, the corresponding name of reference character is called: 1, fuel tank, 2, filter, 3, oil hydraulic pump, 4, relief valve, 5, the first one-way throttle valve, 6, the second one-way throttle valve, 7, the first three position four-way electromagnetic valve, 8, reduction valve, 9, the first two-position four-way solenoid valve, 10, the second two-position four-way solenoid valve, 11, the 3rd one-way throttle valve, 12, the 3rd three position four-way electromagnetic valve, 13, the 4th one-way throttle valve, 14, divide oily device, 15, the 4th three position four-way electromagnetic valve, 16, the 5th one-way throttle valve, 17, the 5th three position four-way electromagnetic valve, 18, the 6th one-way throttle valve, 19, the second two-position four-way solenoid valve, 20, the first electronic one-way valve, 21, the first oil hydraulic cylinder, 22, the 3rd two-position four-way solenoid valve, 23, the second electronic one-way valve, 24, the second oil hydraulic cylinder, 25, the 4th two-position four-way solenoid valve, 26, the 3rd electronic one-way valve, 27, the 3rd oil hydraulic cylinder, 28, the 5th two-position four-way solenoid valve, 29, the 4th electronic one-way valve, 30, the 4th oil hydraulic cylinder, 31, the 6th two-position four-way solenoid valve.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, the hydraulic system of jacking top cover during for loosening reactor lid, comprise fuel tank 1, filter 2, oil hydraulic pump 3, the first three position four-way electromagnetic valve 7, minute oily device 14 and a plurality of oil hydraulic cylinder, wherein, oil hydraulic cylinder is plunger type cylinder, fuel tank 1, filter 2 and oil hydraulic pump 3 are connected in turn, and the pressure oil import P of the liquid outlet of oil hydraulic pump 3 and the first three position four-way electromagnetic valve 7 connects.Divide oily device 14 to comprise minute oil clot and the oil cylinder suitable with oil hydraulic cylinder quantity, divide in oil clot and be provided with a minute oily runner, divide oil clot to be also provided with and connect main fluid import and export and fluid import and export of a plurality of branches that divide oily runner in it, the quantity that branch's fluid is imported and exported is identical with the quantity of oil cylinder, in oil cylinder, be provided with and be flexibly connected with its inwall and divide grease trap to form the plunger of upper and lower two cavitys, the oil return inlet T of the first three position four-way electromagnetic valve 7 is connected fuel tank 1, the delivery outlet B of the first three position four-way electromagnetic valve 7 imports and exports and is connected with the main fluid of minute oil clot, oil cylinder is provided with the upper oil inlet and outlet of connecting its inner plunger upper cavity and the lower oil inlet and outlet of connecting its inner plunger lower cavity, the lower oil inlet and outlet of a plurality of oil cylinders is corresponding one by one with a plurality of branches fluid import and export position on minute oil clot, and then a plurality of oil cylinder inner plunger lower cavity and a minute oily runner are connected.
Between the delivery outlet A of the upper oil inlet and outlet of each oil cylinder and the first three position four-way electromagnetic valve 7, be equipped with an oil hydraulic cylinder jacking fluid pilot line, oil hydraulic cylinder jacking fluid pilot line comprises a three position four-way electromagnetic valve, pressure oil import P, the delivery outlet A of this three position four-way electromagnetic valve, oil return inlet T are connected with the lower chamber of the delivery outlet A of the first three position four-way electromagnetic valve 7, the upper oil inlet and outlet of oil cylinder and oil hydraulic cylinder respectively, the delivery outlet B cut-off of this three position four-way electromagnetic valve.Oil hydraulic cylinder jacking fluid pilot line also comprises and is arranged in oil hydraulic cylinder and oil hydraulic cylinder jacking fluid pilot line a two-position four-way solenoid valve and the electronic one-way valve on pipeline between three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in oil hydraulic cylinder jacking fluid pilot line, pressure oil import P is connected with the oil return inlet T of three position four-way electromagnetic valve in it and the liquid entering hole of electronic one-way valve respectively, in oil hydraulic cylinder jacking fluid pilot line, the liquid outlet of electronic one-way valve and the lower chamber of an oil hydraulic cylinder are connected, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in oil hydraulic cylinder jacking fluid pilot line.
The first three position four-way electromagnetic valve 7 delivery outlet B are provided with the first one-way throttle valve 5 with the pipeline of minute oily runner connection of minute oily device 14, the first three position four-way electromagnetic valve 7 delivery outlet A are connected with the second one-way throttle valve 6, the oil hydraulic cylinder jacking fluid pilot line being connected with the first three position four-way electromagnetic valve 7 is connected on the second one-way throttle valve 6, oil hydraulic cylinder jacking fluid pilot line comprises an one-way throttle valve, this one-way throttle valve is arranged on the pipeline between the interior three position four-way electromagnetic valve delivery outlet A of oil hydraulic cylinder jacking fluid pilot line and the upper oil inlet and outlet of minute oily device 14 inner cylinders.As preferably, in oil hydraulic cylinder and minute oily device 14, the quantity of oil cylinder is four, four oil hydraulic cylinders are respectively the first oil hydraulic cylinder 21, the second oil hydraulic cylinder 24, the 3rd oil hydraulic cylinder 27 and the 4th oil hydraulic cylinder 30, the quantity of oil hydraulic cylinder jacking fluid pilot line is four, in oil hydraulic cylinder jacking fluid pilot line, four three position four-way electromagnetic valves are respectively the second three position four-way electromagnetic valve 10, the 3rd three position four-way electromagnetic valve 12, the 4th three position four-way electromagnetic valve 15 and the 5th three position four-way electromagnetic valve 17, in oil hydraulic cylinder jacking fluid pilot line, four electronic one-way valves are respectively the first electronic one-way valve 20, the second electronic one-way valve 23, the 3rd electronic one-way valve 26 and the 4th electronic one-way valve 29, in oil hydraulic cylinder jacking fluid pilot line, four one-way throttle valves are respectively the 3rd one-way throttle valve 11, the 4th one-way throttle valve 13, the 5th one-way throttle valve 16 and the 6th one-way throttle valve 18.Oil hydraulic cylinder jacking fluid pilot line and the 4th oil hydraulic cylinder 30 that in this practical example, the 3rd one-way throttle valve 11, the second three position four-way electromagnetic valve 10, the 5th two-position four-way solenoid valve 28 and the 4th electronic one-way valve 29 form are connected; Oil hydraulic cylinder jacking fluid pilot line and the 3rd oil hydraulic cylinder 27 that in this practical example, the 4th one-way throttle valve 13, the 3rd three position four-way electromagnetic valve 12, the 4th two-position four-way solenoid valve 25 and the 3rd electronic one-way valve 26 form are connected; Oil hydraulic cylinder jacking fluid pilot line and the second oil hydraulic cylinder 24 that in this practical example, the 5th one-way throttle valve 16, the 4th three position four-way electromagnetic valve 15, the 3rd two-position four-way solenoid valve 22 and the second electronic one-way valve 23 form are connected; Oil hydraulic cylinder jacking fluid pilot line and the first oil hydraulic cylinder 21 that in this practical example, the 6th one-way throttle valve 18, the 5th three position four-way electromagnetic valve 17, the second two-position four-way solenoid valve 19 and the first electronic one-way valve 20 form are connected.
The hydraulic system of jacking top cover during for loosening reactor lid, also comprise that oil hydraulic cylinder presses down fluid pilot line, wherein, oil hydraulic cylinder presses down fluid pilot line and comprises the first two-position four-way solenoid valve 9, the 6th two-position four-way solenoid valve 31 and reduction valve 8, pipeline between the pressure oil import P of the first two-position four-way solenoid valve 9 and oil hydraulic pump 3 and the first three position four-way electromagnetic valve 7 pressure oil import P is connected, the delivery outlet A cut-off of the first two-position four-way solenoid valve 9, the delivery outlet B of the delivery outlet B of the first two-position four-way solenoid valve 9 and the 6th two-position four-way solenoid valve 31 connects, the first two-position four-way solenoid valve 9 oil return inlet T, the pipeline of the 6th two-position four-way solenoid valve 31 delivery outlet A all and between the first three position four-way electromagnetic valve 7 oil return inlet T and fuel tank 1 connected, the 6th two-position four-way solenoid valve 31 oil return inlet T cut-offs, the upper cavity of a plurality of oil hydraulic cylinders is all connected with the pressure oil import P of the 6th two-position four-way solenoid valve 31.Reduction valve 8 is arranged on the pipeline between the first two-position four-way solenoid valve 9 pressure oil import P and oil hydraulic pump 3.
The hydraulic system of jacking top cover during for loosening reactor lid, also comprise relief valve 4, fuel tank 1 is connected with a total return line, total return line that the return line that the delivery outlet A three of the oil return inlet T of the oil return inlet T of the first three position four-way electromagnetic valve 7, the first two-position four-way solenoid valve 9 and the 6th two-position four-way solenoid valve 31 connects is all connected with fuel tank 1 is connected, total return line that relief valve 4 one end are connected with fuel tank 1 is connected, and the pipeline between its other end and oil hydraulic pump 3 and the first three position four-way electromagnetic valve 7 pressure oil import P is connected.
The present embodiment when work mainly comprise that minute oily device 14 oil suctions, oil hydraulic cylinder rise, oil hydraulic cylinder decline, oil hydraulic cylinder remain on jacking position, and jacking and the constant five kinds of working staties in other oil hydraulic cylinder holding position on an oil hydraulic cylinder.In the present embodiment the first three position four-way electromagnetic valve 7, the second three position four-way electromagnetic valve 10, the 3rd three position four-way electromagnetic valve 12, the 4th three position four-way electromagnetic valve 15 and 17 5 solenoid valves of the 5th three position four-way electromagnetic valve upper during with the next work working state identical, be specially: during upper work, pressure oil import P and delivery outlet A connect, and oil return inlet T and delivery outlet B connect; During the next work, pressure oil import P and delivery outlet B connect, and oil return inlet T and delivery outlet A connect.During the first three position four-way electromagnetic valve 7 meta work, pressure oil import P and delivery outlet B cut-off, delivery outlet A and oil return inlet T are connected, when the second three position four-way electromagnetic valve 10, the 3rd three position four-way electromagnetic valve 12, the 4th three position four-way electromagnetic valve 15 and the 5th three position four-way electromagnetic valve 17 metas are worked, in pressure oil import P, delivery outlet A, delivery outlet B and four interfaces of oil return inlet T, any two interfaces are all connected.In the present embodiment, oil return inlet T and the delivery outlet A of the second two-position four-way solenoid valve 19, the 3rd two-position four-way solenoid valve 22, the 4th two-position four-way solenoid valve 25 and the 5th two-position four-way solenoid valve 28 4 all end, during the four interior upper work of electromagnet, pressure oil import P and delivery outlet B connection, delivery outlet A and oil return inlet T are connected, during the next work, pressure oil import P and delivery outlet A connect, and oil return inlet T and delivery outlet B connect.In the present embodiment, in electronic one-way valve the 23, the 3rd electronic one-way valve 26 of the first electronic one-way valve 20, second and the 4th electronic one-way valve 29 4, electromagnet obtains electric while making the work of the right position of valve, now, fluid through two-position four-way solenoid valve in oil hydraulic cylinder jacking fluid pilot line can flow into oil hydraulic cylinder, when electromagnet must not electricity in electronic one-way valve, its internal channel cut-off.In the present embodiment, the interior electromagnet of the 6th two-position four-way solenoid valve 31 obtains electric its right when work position that make, and its pressure oil import P and delivery outlet A connect, when the work of the left position of this valve, and pressure oil import P and delivery outlet B connection.
Energising requirement and workflow in the present embodiment during the oil suction of minute oily device are as follows: oil hydraulic pump 3 electric-opening, the electromagnet DT1 of the first three position four-way electromagnetic valve 7, the electromagnet DT5 of the second three position four-way electromagnetic valve 10, the electromagnet DT8 of the 3rd three position four-way electromagnetic valve 12, the electromagnet DT11 of the 4th three position four-way electromagnetic valve 15, the electromagnet DT14 of the 5th three position four-way electromagnetic valve 17 all electric, these valves are upper work all, oil hydraulic pump 3 injects hydraulic oil in the cavity of minute 14 4 oil cylinder plunger upper part of oily device, now, hydraulic oil in plunger lower cavity is back in fuel tank.Article four, in-line is respectively: a, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be upper → the second one-way throttle valve 6 → the second three position four-way electromagnetic valves 10 are upper → the 3rd one-way throttle valve 11 → minute oily device 14 in the plunger upper part cavity of oil cylinder; B, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be upper → the second one-way throttle valve 6 → three three position four-way electromagnetic valve 12 is upper → the 4th one-way throttle valve 13 → minute oily device 14 in the plunger upper part cavity of oil cylinder; C, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be upper → the second one-way throttle valve 6 → four three position four-way electromagnetic valve 15 is upper → the 5th one-way throttle valve 16 → minute oily device 14 in the plunger upper part cavity of oil cylinder; D, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be upper → the second one-way throttle valve 6 → five three position four-way electromagnetic valve 17 is upper → the 6th one-way throttle valve 18 → minute oily device 14 in the plunger upper part cavity of oil cylinder.Article one, oil circuit is: divide plunger lower cavity → the first one-way throttle valve 5 → the first three position four-way electromagnetic valves 7 of oil cylinder in oily device 14 upper → fuel tank 1.
Energising requirement and workflow when in the present embodiment, oil hydraulic cylinder rises are: oil hydraulic pump 3 energisings are put electricly, oil hydraulic pump is opened, the electromagnet DT2 of the first three position four-way electromagnetic valve 7, the electromagnet DT6 of the second three position four-way electromagnetic valve 10, the electromagnet DT9 of the 3rd three position four-way electromagnetic valve 12, the electromagnet DT12 of the 4th three position four-way electromagnetic valve 15, the electromagnet DT15 of the 5th three position four-way electromagnetic valve 17 all electric and the next work, the electromagnet DT16 of the second two-position four-way solenoid valve 19, the electromagnet DT13 of the 3rd two-position four-way solenoid valve 22, the electromagnet DT7 of the electromagnet DT10 of the 4th two-position four-way solenoid valve 25 and the 5th two-position four-way solenoid valve 28 all electric and upper work, the electromagnet DT20 of the first electronic one-way valve 20, the electromagnet DT19 of the second electronic one-way valve 23, the electromagnet DT17 of the electromagnet DT18 of the 3rd electronic one-way valve 26 and the 4th electronic one-way valve 29 all electric, these four electronic one-way valves are the work of right position all, oil hydraulic pump 3 injects hydraulic oil in the cavity of four oil cylinder plunger bottoms dividing oily device 14, and promote to move on plunger, hydraulic oil in four oil cylinders of this time-division oil device 14 in the cavity of plunger upper part is pressed into respectively four cylinder plunger bottoms, and then make four cylinder plungers synchronously increase, the hydraulic oil on cylinder plunger top is got back in fuel tank 1.Article four, in-line is respectively: a, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be the next → the first one-way throttle valve 5 → minute oily device 14 in plunger lower cavity → pushing minute oily device 14 of oil cylinder in the plunger upper part cavity of oil cylinder hydraulic oil → three one-way throttle valve 11 → the second three position four-way electromagnetic valves 10 the next → the 5th two-position four-way solenoid valve 28 is upper → right position → the 4th oil hydraulic cylinder 30 inner plunger lower cavity of the 4th electronic one-way valve 29; B, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be the next → the first one-way throttle valve 5 → minute oily device 14 in plunger lower cavity → pushing minute oily device 14 of oil cylinder in the plunger upper part cavity of oil cylinder hydraulic oil → four one-way throttle valve the 13 → three three position four-way electromagnetic valve 12 the next → the 4th two-position four-way solenoid valve 25 is upper → right position → the 3rd oil hydraulic cylinder 27 inner plunger lower cavity of the 3rd electronic one-way valve 26; C, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be the next → the first one-way throttle valve 5 → minute oily device 14 in plunger lower cavity → pushing minute oily device 14 of oil cylinder in the plunger upper part cavity of oil cylinder hydraulic oil → five one-way throttle valve the 16 → four three position four-way electromagnetic valve 15 the next → the 3rd two-position four-way solenoid valve 22 is upper → right position → the second oil hydraulic cylinder 24 inner plunger lower cavity of the second electronic one-way valve 23; D, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 be the next → the first one-way throttle valve 5 → minute oily device 14 in plunger lower cavity → pushing minute oily device 14 of oil cylinder in the plunger upper part cavity of oil cylinder hydraulic oil → six one-way throttle valve the 18 → five three position four-way electromagnetic valve 17 the next → the second two-position four-way solenoid valve 19 is upper → right position → the first oil hydraulic cylinder 21 inner plunger lower cavity of the first electronic one-way valve 20.Article one, oil circuit is: the first oil hydraulic cylinder 21, the second oil hydraulic cylinder 24, the 3rd oil hydraulic cylinder 27, the right position → fuel tank 1 of the 4th oil hydraulic cylinder 30 plunger upper part cavity → six two-position four-way solenoid valve 31.
When the present embodiment need remain on top lifting height, oil hydraulic pump 3 energisings must not put electric, oil hydraulic pump 3 cuts out, the electromagnet DT4 of the 6th three position four-way electromagnetic valve 31 obtains electric, make the left position work of this valve, the electromagnet DT20 of the first electronic one-way valve 20, the electromagnet DT19 of the second electronic one-way valve 23, the electromagnet DT17 of the electromagnet DT18 of the 3rd electronic one-way valve 26 and the 4th electronic one-way valve 29 all must not be electric, four all left position work of electronic one-way valve, now, oil hydraulic pump 3 can not conveying liquid force feed, and the hydraulic oil of plunger bottom also cannot be back to fuel tank 1 in four oil hydraulic cylinders, and then the state of the top lifting height that makes oil hydraulic cylinder in a maintenance.
When if the top lifting height error of certain oil hydraulic cylinder is greater than setting value during the present embodiment work, carry out the repairing action of this cylinder.At this, take the 4th oil hydraulic cylinder 30 is example, and remaining fluid cylinder pressure in like manner.While carrying out the repairing process of the 4th oil hydraulic cylinder 30, oil hydraulic pump 3 energisings are put electricly, oil hydraulic pump opening state, the electromagnet DT2 of the first three position four-way electromagnetic valve 7 obtains electric, makes the next work of this valve, the electromagnet DT6 of the second three position four-way electromagnetic valve 10 obtains electric, makes the next work of this valve, the electromagnet DT7 of the 5th two-position four-way solenoid valve 28 obtains electric, makes the upper work of this valve, the electromagnet DT14 of the electromagnet DT11 of the electromagnet DT8 of the 3rd three position four-way electromagnetic valve 12, the 4th three position four-way electromagnetic valve 15, the 5th three position four-way electromagnetic valve 17 all electric, these valves are upper work all, the electromagnet DT17 of the 4th electronic one-way valve 29 obtains electric, makes the right position work of this valve, oil hydraulic pump 3 injects hydraulic oil in the cavity of four oil cylinder plunger bottoms dividing oily device, and promote to move on four in-oil cylinder plungers, in the cavity of plunger bottom in four oil cylinders of minute oily device of the 4th oil hydraulic cylinder 30 correspondences, and promote to move on four in-oil cylinder plungers, hydraulic oil in the plunger upper part cavity of the oil cylinder of the 4th oil hydraulic cylinder 30 correspondences is pressed into the plunger bottom of the 4th oil hydraulic cylinder 30, plunger in the 4th oil hydraulic cylinder 30 rises, and the first oil hydraulic cylinder 21, hydraulic oil in minute oily device plunger cavity epicoele of the second oil hydraulic cylinder 24 and the 3rd oil hydraulic cylinder 27 correspondences is got back in fuel tank 1.Repeat this action, until the 4th oil hydraulic cylinder 30 top lifting height errors are within setting value.In-line: fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 are the next → oil cylinder of the first one-way throttle valve 5 → minute oily device 14 in the oil cylinder of cavity → pushing minute oily device 14 of plunger bottom in the cavity of plunger upper part hydraulic oil → three one-way throttle valve 11 → the second three position four-way electromagnetic valves 10 the next → the 5th two-position four-way solenoid valve 28 is upper → right position → the 4th oil hydraulic cylinder 30 plunger lower cavity of the 4th electronic one-way valve 29.Oil circuit is three, and three backflow roads are respectively: and a, minute oily device 14 plunger cavity epicoele hydraulic oil → four one-way throttle valve the 13 → three three position four-way electromagnetic valves 12 be upper → and the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 are the next → fuel tank 1; B, minute oily device 14 plunger cavity epicoele hydraulic oil → five one-way throttle valve the 16 → four three position four-way electromagnetic valves 15 be upper → and the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 are the next → fuel tank 1; C, minute oily device 14 plunger cavity epicoele hydraulic oil → six one-way throttle valve the 18 → five three position four-way electromagnetic valves 17 be upper → and the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 are the next → fuel tank 1.
After reactor lid has become flexible, need make the plunger of oil hydraulic cylinder decline, now, oil hydraulic pump 3 energisings are put electricly, and oil hydraulic pump is opened; The electromagnet DT3 of the first two-position four-way solenoid valve 9 obtains electric, makes the upper work of this valve; The electromagnet DT4 of the 6th two-position four-way solenoid valve 31 obtains electric, makes the left position work of this valve; The electromagnet DT16 of the electromagnet DT13 of the electromagnet DT10 of the electromagnet DT7 of the 5th two-position four-way solenoid valve 28, the 4th two-position four-way solenoid valve 25, the 3rd two-position four-way solenoid valve 22, the second two-position four-way solenoid valve 19 all electric, these valves are upper work all; The electromagnet DT20 of the electromagnet DT19 of the electromagnet DT18 of the electromagnet DT17 of the 4th electronic one-way valve 29, the 3rd electronic one-way valve 26, the second electronic one-way valve 23, the first electronic one-way valve 20 all electric, these valves are right position work all; Oil hydraulic pump injects hydraulic oil in the cavity on four cylinder plunger tops, and plunger is declined, and hydraulic oil in cylinder plunger lower cavity is got back in fuel tank 1.In-line is: fuel tank 1 → filter 2 → oil hydraulic pump 3 → reduction valve 8 → the first two-position four-way solenoid valves 9 are upper → and the cavity on left position → tetra-the cylinder plunger tops of the 6th two-position four-way solenoid valve 31.Oil circuit is four, and four oil circuits are respectively: a, right position → the 5th two-position four-way solenoid valve 28 of the electronic one-way valve 29 of the 4th oil hydraulic cylinder 30 plunger lower cavity → four be upper → and second three position four-way electromagnetic valve 10 meta → the second one-way throttle valve 6 → the first three position four-way electromagnetic valve 7 metas → fuel tanks 1; B, right position → the 4th two-position four-way solenoid valve 25 of the electronic one-way valve 26 of the 3rd oil hydraulic cylinder 27 plunger lower cavity → three be upper → the 3rd three position four-way electromagnetic valve 12 meta → the second one-way throttle valve 6 → the first three position four-way electromagnetic valve 7 metas → fuel tanks 1; C, right position → the 3rd two-position four-way solenoid valve 22 of the electronic one-way valve 23 of the second oil hydraulic cylinder 24 plunger lower cavity → the second be upper → the 4th three position four-way electromagnetic valve 15 meta → the second one-way throttle valve 6 → the first three position four-way electromagnetic valve 7 metas → fuel tanks 1; D, right position → the second two-position four-way solenoid valve 19 of the electronic one-way valve 20 of the first oil hydraulic cylinder 21 plunger lower cavity → the first be upper → the 5th three position four-way electromagnetic valve 17 meta → the second one-way throttle valve 6 → the first three position four-way electromagnetic valve 7 metas → fuel tanks 1.
As mentioned above, can well realize the present invention.
Claims (8)
1. the hydraulic system of jacking top cover during for loosening reactor lid, it is characterized in that: comprise fuel tank (1), filter (2), oil hydraulic pump (3), the first three position four-way electromagnetic valve (7), minute oily device (14) and a plurality of oil hydraulic cylinder, described fuel tank (1), filter (2) and oil hydraulic pump (3) are connected in turn, and the pressure oil import P of the liquid outlet of oil hydraulic pump (3) and the first three position four-way electromagnetic valve (7) connects, described minute oily device (14) comprise minute oily runner and the oil cylinder suitable with oil hydraulic cylinder quantity, in described oil cylinder, be provided with and be flexibly connected with its inwall and divide grease trap to form the plunger of upper and lower two cavitys, the oil return inlet T of described the first three position four-way electromagnetic valve (7) is connected fuel tank (1), the delivery outlet B of the first three position four-way electromagnetic valve (7) and a plurality of oil cylinder inner plunger lower cavity are all connected with a minute oily runner for minute oily device (14), oil cylinder is provided with the upper oil inlet and outlet of connecting plunger upper part cavity, between the delivery outlet A of the upper oil inlet and outlet of each oil cylinder and the first three position four-way electromagnetic valve (7), be equipped with an oil hydraulic cylinder jacking fluid pilot line, described oil hydraulic cylinder jacking fluid pilot line comprises a three position four-way electromagnetic valve, the pressure oil import P of this three position four-way electromagnetic valve, delivery outlet A, oil return inlet T respectively with the delivery outlet A of the first three position four-way electromagnetic valve (7), the upper oil inlet and outlet of oil cylinder and the lower chamber of oil hydraulic cylinder are connected, the delivery outlet B cut-off of this three position four-way electromagnetic valve.
2. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 1, it is characterized in that: described oil hydraulic cylinder jacking fluid pilot line also comprises and is arranged in oil hydraulic cylinder and oil hydraulic cylinder jacking fluid pilot line a two-position four-way solenoid valve and the electronic one-way valve on pipeline between three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in oil hydraulic cylinder jacking fluid pilot line, pressure oil import P is connected with the oil return inlet T of three position four-way electromagnetic valve in it and the liquid entering hole of electronic one-way valve respectively, in oil hydraulic cylinder jacking fluid pilot line, the liquid outlet of electronic one-way valve and the lower chamber of an oil hydraulic cylinder are connected, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in described oil hydraulic cylinder jacking fluid pilot line.
3. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 2, it is characterized in that: described the first three position four-way electromagnetic valve (7) delivery outlet B is provided with the first one-way throttle valve (5) with the pipeline of minute oily runner connection of minute oily device (14), the first three position four-way electromagnetic valve (7) delivery outlet A is connected with the second one-way throttle valve (6), the oil hydraulic cylinder jacking fluid pilot line being connected with the first three position four-way electromagnetic valve (7) is connected on the second one-way throttle valve (6), described oil hydraulic cylinder jacking fluid pilot line comprises an one-way throttle valve, this one-way throttle valve is arranged on the pipeline between the interior three position four-way electromagnetic valve delivery outlet A of oil hydraulic cylinder jacking fluid pilot line and the upper oil inlet and outlet of minute oily device (14) inner cylinder.
4. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 1, it is characterized in that: also comprise that oil hydraulic cylinder presses down fluid pilot line, described oil hydraulic cylinder presses down fluid pilot line and comprises the first two-position four-way solenoid valve (9) and the 6th two-position four-way solenoid valve (31), pipeline between the pressure oil import P of described the first two-position four-way solenoid valve (9) and oil hydraulic pump (3) and the first three position four-way electromagnetic valve (7) pressure oil import P is connected, the delivery outlet A cut-off of the first two-position four-way solenoid valve (9), the delivery outlet B of the delivery outlet B of the first two-position four-way solenoid valve (9) and the 6th two-position four-way solenoid valve (31) connects, the first two-position four-way solenoid valve (9) oil return inlet T, the pipeline of the 6th two-position four-way solenoid valve (31) delivery outlet A all and between the first three position four-way electromagnetic valve (7) oil return inlet T and fuel tank (1) connected, the 6th two-position four-way solenoid valve (31) oil return inlet T cut-off, the upper cavity of described a plurality of oil hydraulic cylinders is all connected with the pressure oil import P of the 6th two-position four-way solenoid valve (31).
5. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 4, it is characterized in that: also comprise relief valve (4), described fuel tank (1) is connected with a total return line, the oil return inlet T of described the first three position four-way electromagnetic valve (7), total return line that the return line that the delivery outlet A three of the oil return inlet T of the first two-position four-way solenoid valve (9) and the 6th two-position four-way solenoid valve (31) connects is all connected with fuel tank (1) is connected, total return line that described relief valve (4) one end is connected with fuel tank (1) is connected, pipeline between its other end and oil hydraulic pump (3) and the first three position four-way electromagnetic valve (7) pressure oil import P is connected.
6. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 4, it is characterized in that: described oil hydraulic cylinder presses down fluid pilot line and also comprises reduction valve (8), described reduction valve (8) is arranged on the pipeline between the first two-position four-way solenoid valve (9) pressure oil import P and oil hydraulic pump (3).
7. the hydraulic system of jacking top cover during for loosening reactor lid according to claim 1, it is characterized in that: described minute oily device (14) comprise a minute oil clot, within described minute, oily runner is arranged in minute oil clot, described a plurality of oil cylinder is all connected on minute oil clot, divide oil clot to be provided with and connect main fluid import and export and fluid import and export of a plurality of branches that divide oily runner in it, the pipeline that divides oily device (14) to be connected with the delivery outlet B of the first three position four-way electromagnetic valve (7) is connected to the main fluid of minute oil clot and imports and exports, the quantity that branch's fluid is imported and exported is identical with the quantity of oil cylinder, oil cylinder is provided with the upper oil inlet and outlet of connecting its inner plunger upper cavity and the lower oil inlet and outlet of connecting its inner plunger lower cavity, the lower oil inlet and outlet of a plurality of oil cylinders is corresponding one by one with a plurality of branches fluid import and export position on minute oil clot.
8. hydraulic system of jacking top cover during for loosening reactor lid according to any described in claim 1～7, it is characterized in that: in described oil hydraulic cylinder and minute oily device (14), the quantity of oil cylinder is four, and the quantity of described oil hydraulic cylinder jacking fluid pilot line is four.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107445099A (en) * | 2017-09-01 | 2017-12-08 | 广州宏途设备工程有限公司 | A kind of servo bracing members prestressing force classification application system of VFC |
| CN109058223A (en) * | 2018-06-26 | 2018-12-21 | 河南德佰特机电设备制造有限公司 | A kind of combined type hydraulic cylinder |
| CN109505813B (en) * | 2018-12-26 | 2024-02-06 | 中冶京诚工程技术有限公司 | Hydraulic synchronous control device |
| CN112833068B (en) * | 2020-12-16 | 2023-07-28 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Integrated movable oil filtering and injecting equipment for hydraulic mechanism |
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