CN102852871A - 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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- CN102852871A CN102852871A CN201210347480XA CN201210347480A CN102852871A CN 102852871 A CN102852871 A CN 102852871A CN 201210347480X A CN201210347480X A CN 201210347480XA CN 201210347480 A CN201210347480 A CN 201210347480A CN 102852871 A CN102852871 A CN 102852871A
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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 when specifically being used for loosening reactor lid.
Background technique
Reactor lid adopts seam to cooperate with pressure container cylinder, and matching gap is minimum, and has assembled the macro-corrosion product through long-play post gap place, so that produced certain cohesive force between the two.When top cover is become flexible, not only to overcome the cohesive force between the two, need simultaneously to guarantee that top cover keeps certain levelness in the top cover jacking process, to reach loosening reactor lid, to prevent piling top cover and pressure container cylinder is stuck and the purpose of rupture pressure shell sealing surface.People are carrying out all adopting the mode of manpower rotational screw jack to become flexible reactor lid when reactor is uncapped now, adopt the loosening reactor lid of existing mode exist automaticity low, regulate the speed and wait slowly defective, and need operator for a long time in the 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 when being used for loosening reactor lid is provided, it solves reactor lid large and large difficult problem of labor intensity of operating staff of levelness control difficulty when loosening, and can improve by automation control and to regulate the speed and reduce operator in the time of radioactive area stop.
Purpose of the present invention is achieved through the following technical solutions: the hydraulic system of jacking top cover when being used 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; Oily device comprised minute oily runner and the oil cylinder suitable with oil hydraulic cylinder quantity in described minute, be provided with in the described oil cylinder with its inwall flexible connection and minute grease trap and consist of the up and down plunger of 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 minute oily runner of minute oily device, oil cylinder is provided with the upper oil inlet and outlet of connecting the plunger upper part cavity, be equipped with an oil hydraulic cylinder jacking fluid pilot line 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, 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 the oily device identical, the present invention should guarantee a minute oily device inner cylinder center pillar cavities is filled with beyond the Great Wall when setting after, hydraulic oil also can only make top cover that less displacement upwards occurs after entering oil hydraulic cylinder in it, should guarantee that namely top cover occurs just can open after the repeatedly jacking.
Described oil hydraulic cylinder jacking fluid pilot line also comprises and is arranged in oil hydraulic cylinder and the oil hydraulic cylinder jacking fluid pilot line two-position four-way solenoid valve and electronic one-way valve on the pipeline between the three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in the oil hydraulic cylinder jacking fluid pilot line, pressure oil import P respectively with its in three position four-way electromagnetic valve oil return inlet T be connected the liquid entering hole of one-way valve and be connected, the lower chamber of the liquid outlet of electronic one-way valve and an oil hydraulic cylinder is connected in the oil hydraulic cylinder jacking fluid pilot line, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in the described oil hydraulic cylinder jacking fluid pilot line.
The pipeline that the flow manifold of described the first three position four-way electromagnetic valve delivery outlet B and part flow arrangement is connected is provided with the first one-way throttle valve, 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 that is 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, and this one-way throttle valve is arranged in the oil hydraulic cylinder jacking fluid pilot line on the pipeline between the three position four-way electromagnetic valve delivery outlet A and the upper oil inlet and outlet that divides oily device inner cylinder.When giving the oil hydraulic cylinder oiling, the flow of the oil of one-way throttle valve control place oil circuit reduces hydraulic oil to the impact force of system's components and parts; When oil circuit was converted to oil return circuit, one-way throttle valve made hydraulic oil can get back to fast fuel tank without effect.
The hydraulic system of jacking top cover when being used for loosening reactor lid, comprise that also oil hydraulic cylinder presses down the fluid pilot line, described oil hydraulic cylinder presses down the 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 first two-position four-way solenoid valve and the delivery outlet B of the 6th two-position four-way solenoid valve connect, the first two-position four-way solenoid valve oil return inlet T, the 6th two-position four-way solenoid valve delivery outlet A all and the pipeline between the first three position four-way electromagnetic valve oil return inlet T and the fuel tank connect, 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 all with the pressure oil import P connection of the 6th two-position four-way solenoid valve.
The hydraulic system of jacking top cover when being used 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 all is 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 the 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 the oil hydraulic pump.
Oily device comprised a minute oil clot in described minute, oily runner was arranged in minute oil clot in described minute, described a plurality of oil cylinder all is 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 part flow arrangement is 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, and 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.
The quantity of oil cylinder is four in described oil hydraulic cylinder and minute oily device, 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 at first make oil hydraulic pump in the cavity on the Cylinder Plunger top of a plurality of same volumes of minute oily device, fill with hydraulic oil by controlling the first three position four-way electromagnetic valve, make oil hydraulic pump injection liquid force feed in the cavity of a plurality of Cylinder Plungers bottom of minute oily device by controlling the first three position four-way electromagnetic valve again, and by three position four-way electromagnetic valve in the control oil hydraulic cylinder jacking fluid pilot line, make that the hydraulic oil in the plunger upper part cavity enters in the oil hydraulic cylinder in a plurality of oil cylinders of minute oily device, and then by the certain height of oil hydraulic cylinder jacking top cover rising, work and so forth, can make top cover continue to rise; The present invention is when the piston rod top lifting height difference of any two oil hydraulic cylinders is larger in a plurality of oil hydraulic cylinders, 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 the top lifting height error hour stops repairing, it is constant at this moment to carry out a plurality of hydraulic cylinder synchronous jackings or holding position again.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 can adjust the top lifting height of single oil hydraulic cylinder when the present invention uses, and then guarantee levelness in the top cover jacking process.
Description of drawings
Fig. 1 is the structural representation in the inventive embodiments.
The corresponding name of reference character is called in the accompanying drawing: 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
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, the hydraulic system of jacking top cover when being used 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 the oil clot and be provided with a minute oily runner, divide oil clot also 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 quantity that branch's fluid is imported and exported is identical with the quantity of oil cylinder, be provided with in the oil cylinder with its inwall flexible connection and minute grease trap and consist of the up and down plunger of 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 with the main fluid of minute oil clot and is connected, 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.
Be equipped with an oil hydraulic cylinder jacking fluid pilot line 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, 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 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 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 the oil hydraulic cylinder jacking fluid pilot line two-position four-way solenoid valve and electronic one-way valve on the pipeline between the three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in the oil hydraulic cylinder jacking fluid pilot line, pressure oil import P respectively with its in three position four-way electromagnetic valve oil return inlet T be connected the liquid entering hole of one-way valve and be connected, the lower chamber of the liquid outlet of electronic one-way valve and an oil hydraulic cylinder is connected in the oil hydraulic cylinder jacking fluid pilot line, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in the oil hydraulic cylinder jacking fluid pilot line.
The pipeline that the flow manifold of the first three position four-way electromagnetic valve 7 delivery outlet B and part flow arrangement 14 is connected is provided with the first one-way throttle valve 5, 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 that is 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, and this one-way throttle valve is arranged in the oil hydraulic cylinder jacking fluid pilot line on the pipeline between the three position four-way electromagnetic valve delivery outlet A and the upper oil inlet and outlet that divides oily device 14 inner cylinders.As preferably, the quantity of oil cylinder is four in oil hydraulic cylinder and minute oily device 14, 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, four three position four-way electromagnetic valves are respectively the second three position four-way electromagnetic valve 10 in the oil hydraulic cylinder jacking fluid pilot line, 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, four electronic one-way valves are respectively the first electronic one-way valve 20 in the oil hydraulic cylinder jacking fluid pilot line, the second electronic one-way valve 23, the 3rd electronic one-way valve 26 and the 4th electronic one-way valve 29, four one-way throttle valves are respectively the 3rd one-way throttle valve 11 in the oil hydraulic cylinder jacking fluid pilot line, the 4th one-way throttle valve 13, the 5th one-way throttle valve 16 and the 6th one-way throttle valve 18.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 consist of in this practical example oil hydraulic cylinder jacking fluid pilot line and the 4th oil hydraulic cylinder 30 are connected; 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 consist of in this practical example oil hydraulic cylinder jacking fluid pilot line and the 3rd oil hydraulic cylinder 27 are connected; 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 consist of in this practical example oil hydraulic cylinder jacking fluid pilot line and the second oil hydraulic cylinder 24 are connected; 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 consist of in this practical example oil hydraulic cylinder jacking fluid pilot line and the first oil hydraulic cylinder 21 are connected.
The hydraulic system of jacking top cover when being used for loosening reactor lid, comprise that also oil hydraulic cylinder presses down the fluid pilot line, wherein, oil hydraulic cylinder presses down the 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 6th two-position four-way solenoid valve 31 delivery outlet A all and the pipeline between the first three position four-way electromagnetic valve 7 oil return inlet T and the fuel tank 1 connect, 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 all with the pressure oil import P connection 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 the oil hydraulic pump 3.
The hydraulic system of jacking top cover when being used 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 all is connected with fuel tank 1 is connected, total return line that relief valve 4 one ends 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.
Present embodiment when work comprise mainly that minute oily device 14 oil suctions, oil hydraulic cylinder rise, oil hydraulic cylinder decline, oil hydraulic cylinder remain on the jacking position, and jacking and the constant five kinds of working staties in other oil hydraulic cylinder holding position on 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.Pressure oil import P and delivery outlet B cut-off, delivery outlet A and oil return inlet T are connected during the work of the first three position four-way electromagnetic valve 7 metas, 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 were worked, any two interfaces were all connected in pressure oil import P, delivery outlet A, delivery outlet B and four interfaces of oil return inlet T.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 in the present embodiment, pressure oil import P and delivery outlet B connection, delivery outlet A and oil return inlet T are connected during the four interior upper work of electromagnet, pressure oil import P and delivery outlet A connect during the next work, and oil return inlet T and delivery outlet B connect.Electromagnet get electric when making the work of the right position of valve in the first electronic one-way valve 20 in the present embodiment, the second electronic one-way valve 23, the 3rd electronic one-way valve 26 and the 4th electronic one-way valve 29 4, at this moment, fluid through two-position four-way solenoid valve in the oil hydraulic cylinder jacking fluid pilot line can flow into oil hydraulic cylinder, when electromagnet must not electricity in the electronic one-way valve, its internal channel cut-off.The 6th two-position four-way solenoid valve 31 interior electromagnet get electric its right when work position that make in the present embodiment, 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 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, at this moment, the hydraulic oil in the plunger lower cavity is back in the fuel tank.Article four, in-line is respectively: the plunger upper part cavity of oil cylinder in a, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 upper → the second one-way throttle valve 6 → the second three position four-way electromagnetic valves 10 upper → the 3rd one-way throttle valves 11 → minute oily device 14; The plunger upper part cavity of oil cylinder in b, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 upper → second one-way throttle valves 6 → the 3rd three position four-way electromagnetic valve 12 upper → the 4th one-way throttle valves 13 → minute oily device 14; The plunger upper part cavity of oil cylinder in c, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 upper → second one-way throttle valves 6 → the 4th three position four-way electromagnetic valve 15 upper → the 5th one-way throttle valves 16 → minute oily device 14; The plunger upper part cavity of oil cylinder in d, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 upper → second one-way throttle valves 6 → the 5th three position four-way electromagnetic valve 17 upper → the 6th one-way throttle valves 18 → minute oily device 14.Article one, oil circuit is: the plunger lower cavity of oil cylinder → the first one-way throttle valve 5 → the first three position four-way electromagnetic valves 7 upper → fuel tanks 1 in minute oily device 14.
Energising requirement and workflow when oil hydraulic cylinder rises in the present embodiment 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 right position work all, oil hydraulic pump 3 injects hydraulic oil in the cavity of four oil cylinder plunger bottoms dividing oily device 14, and move on the promotion 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 four cylinder plungers are risen synchronously, the hydraulic oil on cylinder plunger top is got back in the fuel tank 1.Article four, in-line is respectively: the interior hydraulic oil of plunger upper part cavity of oil cylinder → electronic one-way valve 29 right position → the 4th oil hydraulic cylinder 30 inner plunger lower cavity of the 3rd 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 upper → four in the plunger lower cavity of oil cylinder → pushing minute oily device 14 in a, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 the next → first one-way throttle valves 5 → minute oily device 14; The interior hydraulic oil of plunger upper part cavity of oil cylinder → electronic one-way valve 26 right position → the 3rd oil hydraulic cylinder 27 inner plunger lower cavity of the 4th one-way throttle valve 13 → the 3rd three position four-way electromagnetic valve 12 the next → the 4th two-position four-way solenoid valve 25 upper → three in the plunger lower cavity of oil cylinder → pushing minute oily device 14 in b, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 the next → first one-way throttle valves 5 → minute oily device 14; The interior hydraulic oil of plunger upper part cavity of oil cylinder → electronic one-way valve 23 right position → the second oil hydraulic cylinder 24 inner plunger lower cavity of the 5th one-way throttle valve 16 → the 4th three position four-way electromagnetic valve 15 the next → the 3rd two-position four-way solenoid valve 22 upper → second in the plunger lower cavity of oil cylinder → pushing minute oily device 14 in c, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 the next → first one-way throttle valves 5 → minute oily device 14; The interior hydraulic oil of plunger upper part cavity of oil cylinder → electronic one-way valve 20 right position → the first oil hydraulic cylinder 21 inner plunger lower cavity of the 6th one-way throttle valve 18 → the 5th three position four-way electromagnetic valve 17 the next → the second two-position four-way solenoid valve 19 upper → first in the plunger lower cavity of oil cylinder → pushing minute oily device 14 in d, fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 the next → first one-way throttle valves 5 → minute oily device 14.Article one, oil circuit is: the first oil hydraulic cylinder 21, the second oil hydraulic cylinder 24, the 3rd oil hydraulic cylinder 27, the 4th oil hydraulic cylinder 30 plunger upper part cavitys → the 6th two-position four-way solenoid valve 31 right position → fuel tanks 1.
When 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 gets 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, at this moment, oil hydraulic pump 3 can not the conveying liquid force feed, and the hydraulic oil of plunger bottom also can't be back to fuel tank 1 in four oil hydraulic cylinders, and then makes the top lifting height of oil hydraulic cylinder be in the state of a maintenance.
When if the top lifting height error of certain oil hydraulic cylinder is greater than setting value during present embodiment work, then carry out the repairing action of this cylinder.Take the 4th oil hydraulic cylinder 30 as example, the remaining fluid cylinder pressure in like manner at this.When carrying out the repairing process of the 4th oil hydraulic cylinder 30, oil hydraulic pump 3 energisings are put electricly, the oil hydraulic pump opening state; The electromagnet DT2 of the first three position four-way electromagnetic valve 7 gets electric, makes the next work of this valve; The electromagnet DT6 of the second three position four-way electromagnetic valve 10 gets electric, makes the next work of this valve; The electromagnet DT7 of the 5th two-position four-way solenoid valve 28 gets 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 gets 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 with plunger bottom in four oil cylinders that divide 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 then got back in the fuel tank 1.Repeat this action, until the 4th oil hydraulic cylinder 30 top lifting height errors are within setting value.In-line: hydraulic oil → electronic one-way valve 29 right position → the 4th oil hydraulic cylinder 30 plunger lower cavity of the 3rd 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 upper → four in the cavity of plunger upper part in the oil cylinder of the cavity of plunger bottom in the oil cylinder of fuel tank 1 → filter 2 → oil hydraulic pump 3 → the first three position four-way electromagnetic valves 7 the next → first one-way throttle valves 5 → minute oily device 14 → pushing minute oily device 14.Oil circuit is three, and three backflow roads are respectively: a, minute oily device 14 plunger cavity epicoele hydraulic oil → the 4th one-way throttle valve 13 → the 3rd three position four-way electromagnetic valve 12 upper → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 the next → fuel tanks 1; B, minute oily device 14 plunger cavity epicoele hydraulic oil → the 5th one-way throttle valve 16 → the 4th three position four-way electromagnetic valve 15 upper → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 the next → fuel tanks 1; C, minute oily device 14 plunger cavity epicoele hydraulic oil → the 6th one-way throttle valve 18 → the 5th three position four-way electromagnetic valve 17 upper → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 the next → fuel tanks 1.
Reactor lid is loosening finish after, the plunger of oil hydraulic cylinder is descended, at this moment, oil hydraulic pump 3 energising points electric, oil hydraulic pump is opened; The electromagnet DT3 of the first two-position four-way solenoid valve 9 gets electric, makes the upper work of this valve; The electromagnet DT4 of the 6th two-position four-way solenoid valve 31 gets 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, plunger is descended, and the hydraulic oil in the cylinder plunger lower cavity is got back in the fuel tank 1.In-line is: the cavity on fuel tank 1 → filter 2 → oil hydraulic pump 3 → reduction valve 8 → the first two-position four-way solenoid valves 9 upper → the 6th two-position four-way solenoid valve 31 left position → four cylinder plunger tops.Oil circuit is four, and four oil circuits are respectively: a, electronic one-way valve 29 right position → the 5th two-position four-way solenoid valve 28 upper → the second three position four-way electromagnetic valve 10 metas → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 metas → fuel tanks 1 of the 4th oil hydraulic cylinder 30 plunger lower cavity → four; B, electronic one-way valve 26 right position → the 4th two-position four-way solenoid valve 25 upper → the 3rd three position four-way electromagnetic valve 12 metas → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 metas → fuel tanks 1 of the 3rd oil hydraulic cylinder 27 plunger lower cavity → three; C, electronic one-way valve 23 right position → the 3rd two-position four-way solenoid valve 22 upper → the 4th three position four-way electromagnetic valve 15 metas → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 metas → fuel tanks 1 of the second oil hydraulic cylinder 24 plunger lower cavity → second; D, electronic one-way valve 20 right position → the second two-position four-way solenoid valve 19 upper → the 5th three position four-way electromagnetic valve 17 metas → the second one-way throttle valve 6 → the first three position four-way electromagnetic valves 7 metas → fuel tanks 1 of the first oil hydraulic cylinder 21 plunger lower cavity → first.
As mentioned above, then can well realize the present invention.
Claims (8)
1. the hydraulic system of jacking top cover when being used 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, be provided with in the described oil cylinder with its inwall flexible connection and minute grease trap and consist of the up and down plunger of 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 minute oily runner of minute oily device (14), oil cylinder is provided with the upper oil inlet and outlet of connecting the plunger upper part cavity, be equipped with an oil hydraulic cylinder jacking fluid pilot line 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), 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 the oil hydraulic cylinder jacking fluid pilot line two-position four-way solenoid valve and electronic one-way valve on the pipeline between the three position four-way electromagnetic valve oil return inlet T, the delivery outlet B of two-position four-way solenoid valve in the oil hydraulic cylinder jacking fluid pilot line, pressure oil import P respectively with its in three position four-way electromagnetic valve oil return inlet T be connected the liquid entering hole of one-way valve and be connected, the lower chamber of the liquid outlet of electronic one-way valve and an oil hydraulic cylinder is connected in the oil hydraulic cylinder jacking fluid pilot line, the oil return inlet T of two-position four-way solenoid valve and delivery outlet A cut-off in the 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: the pipeline that the flow manifold of described the first three position four-way electromagnetic valve (7) delivery outlet B and part flow arrangement (14) is connected is provided with the first one-way throttle valve (5), 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 that is 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, and this one-way throttle valve is arranged in the oil hydraulic cylinder jacking fluid pilot line on the pipeline between the three position four-way electromagnetic valve delivery outlet A and the upper oil inlet and outlet that divides 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: comprise that also oil hydraulic cylinder presses down the fluid pilot line, described oil hydraulic cylinder presses down the 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) the 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 6th two-position four-way solenoid valve (31) delivery outlet A all and the pipeline between the first three position four-way electromagnetic valve (7) oil return inlet T and the fuel tank (1) connect, 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 all with the pressure oil import P connection 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 all is connected with fuel tank (1) is connected, total return line that described relief valve (4) one ends 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) the 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 the fluid pilot line and also comprises reduction valve (8), and described reduction valve (8) is arranged on the pipeline between the first two-position four-way solenoid valve (9) pressure oil import P and the 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, oily runner was arranged in minute oil clot in described minute, described a plurality of oil cylinder all is 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 part flow arrangement (14) is 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, and 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. the hydraulic system of described any jacking top cover when being used for loosening reactor lid according to claim 1～7, it is characterized in that: the quantity of oil cylinder is four in described oil hydraulic cylinder and minute oily device (14), and the quantity of described oil hydraulic cylinder jacking fluid pilot line is four.
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| CN201210347480.XA CN102852871B (en) | 2012-09-19 | 2012-09-19 | Hydraulic system for jacking top cover in loosening reactor top cover |
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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 |
| CN109505813A (en) * | 2018-12-26 | 2019-03-22 | 中冶京诚工程技术有限公司 | Hydraulic Synchronous Control Device |
| CN112833068A (en) * | 2020-12-16 | 2021-05-25 | 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 oiling equipment for hydraulic mechanism |
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| 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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| CN102852871B (en) | 2014-12-10 |
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