CN219860343U - Synchronous jacking system for hydraulic components of main pump - Google Patents

Abstract

The utility model discloses a synchronous lifting system of a main pump hydraulic component, which comprises a plurality of dismounting devices connected with a flange surface of a main pump shell, hydraulic lifting devices used for controlling lifting of the dismounting devices and a control system used for controlling action of the hydraulic lifting devices, wherein the dismounting devices are uniformly distributed on the flange surface of the main pump shell at intervals along the circumferential direction of the flange surface of the main pump shell and used for synchronously lifting the main pump hydraulic component, the hydraulic lifting devices comprise a pump station assembly and control pipelines connected with the pump station assembly, each control pipeline comprises a first connecting pipeline, the first connecting pipeline is divided into a plurality of branch pipelines through a quick connector, the branch pipelines are connected in parallel, and each branch pipeline is correspondingly connected with the dismounting devices and used for controlling lifting of the dismounting devices. The synchronous jacking system of the hydraulic components of the main pump can solve the difficult problem that original equipment is blocked and difficult to disassemble, improve equipment automation, improve working efficiency and reduce personnel exposure dose.

Description

Synchronous jacking system for hydraulic components of main pump

Technical Field

The utility model relates to the field of the disassembly and inspection of hydraulic components of nuclear power stations, in particular to a synchronous jacking system of hydraulic components of a main pump.

Background

Along with the long-term operation of the unit, the long-period replacement project of the hydraulic component of the main pump comes along with the long-period replacement project of the hydraulic component of the main pump in a large area. Because of the partial deformation of the main pump shell after long-term operation, the problems of jamming, large jacking force and the like of the hydraulic component in the whole disassembly are easily caused by the factors of viscous joint surfaces of the pump shell and the hydraulic component, the hydraulic component cannot be smoothly disassembled from the pump shell, and the risk is very high.

At present, the disassembly of 100 main pump hydraulic components at home and abroad is an original design disassembly mode, an original disassembly system cannot automatically match pressure, a jack cannot synchronously jack up, the hydraulic components are mainly measured and adjusted in real time by manpower, and the situation that the hydraulic components are difficult to disassemble due to uneven local stress is easy to occur. The used tools and processes are all old technologies, the safety is poor, the automation degree is low, and the limitations are large.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a synchronous jacking system for hydraulic components of a main pump.

The technical scheme adopted for solving the technical problems is as follows: a synchronous jacking system of a hydraulic component of a main pump is constructed, which comprises: the hydraulic lifting device comprises a plurality of dismounting devices connected with the flange surface of the main pump shell, a hydraulic lifting device for controlling the dismounting devices to lift and a control system for controlling the hydraulic lifting device to act;

the dismounting devices are uniformly distributed on the flange surface of the main pump shell at intervals along the circumferential direction of the flange surface of the main pump shell and are used for connecting hydraulic components;

the hydraulic jacking device comprises a pump station assembly and control pipelines connected with the pump station assembly, wherein each control pipeline comprises a first connecting pipeline, the first connecting pipeline is divided into a plurality of branch pipelines through a quick connector, the branch pipelines are connected in parallel, and each branch pipeline is correspondingly connected with one dismounting device and used for controlling lifting of the dismounting device.

In some embodiments, each of the dismounting devices comprises a bottom plate arranged on the flange face of the main pump shell, a lifter arranged on the bottom plate, and a connecting piece connected with the hydraulic component, wherein the lifter is further connected to the branch pipeline so as to lift under the control of the pump station assembly, and further drive the connecting piece and the hydraulic component to lift.

In some embodiments, the hydraulic component has a tab on its periphery, and the connector is connected to the tab.

In some embodiments, each of the dismounting devices further comprises a cross beam connected to the connection member;

and the lifters are respectively connected with two sides of the cross beam and are used for lifting the hydraulic component.

In some embodiments, the connecting piece is provided with a connecting hole penetrating through the upper end and the lower end of the connecting piece, and the cross beam is provided with a penetrating hole corresponding to the connecting hole;

the fastener is arranged in the through hole and the connecting hole in a penetrating way and is in threaded connection with the hydraulic component.

In some embodiments, a handle is provided on the side of the connector facing away from the hydraulic component;

and the two sides of the cross beam are respectively provided with a ring hanging part connected with an external carrying mechanism.

In some embodiments, the lifter is provided with a displacement sensor for measuring a lifting distance of the hydraulic component, and a pressure sensor for measuring a pressure provided by the lifter to the hydraulic component.

In some embodiments, the pump station assembly comprises a hydraulic pump station, a reversing valve set connected to the hydraulic pump station;

the control pipeline also comprises a second connecting pipeline, and the outlet ends of the plurality of pipelines, which are positioned at the downstream pipeline parts of the dismounting devices, are combined and then connected with the inlet ends of the second connecting pipeline;

the reversing valve group is provided with a first interface and a second interface, the first interface is connected with the outlet end of the first connecting pipeline, and the second interface is connected with the inlet end of the second connecting pipeline.

In some embodiments, the hydraulic pump station is provided with a hydraulic pump, a driving motor connected with the hydraulic pump, an oil outlet pipeline, an oil return pipeline and an oil tank;

the reversing valve group is also provided with a third interface and a fourth interface;

the inlet end of the oil outlet pipeline is connected with the hydraulic pump, and the outlet end of the oil outlet pipeline is connected with the third interface;

the inlet end of the oil return pipeline is connected with the fourth interface, and the outlet end of the oil return pipeline is connected with the oil tank;

the oil outlet pipeline is sequentially provided with a first overflow valve and a first pressure gauge from the inlet end to the outlet end of the oil outlet pipeline;

and a filter is arranged on the oil return pipeline.

In some embodiments, a check valve, a control valve, an ascending throttle valve, and a descending throttle valve are provided on each of the branch lines on a downstream line portion of each of the dismounting devices.

The implementation of the utility model has the following beneficial effects: the main pump hydraulic component synchronous jacking system comprises a plurality of dismounting devices, a hydraulic jacking device and a control system, wherein the dismounting devices are used for being connected with the flange surface of a main pump shell, the hydraulic jacking device is used for controlling the dismounting devices to lift, the control system is used for controlling the hydraulic jacking device to act, the dismounting devices are uniformly distributed on the flange surface of the main pump shell at intervals along the circumferential direction of the flange surface of the main pump shell and used for synchronously lifting the main pump hydraulic component, the hydraulic jacking device comprises a pump station assembly and control pipelines connected with the pump station assembly, the control pipelines comprise first connecting pipelines, the first connecting pipelines are divided into a plurality of branch pipelines through quick connectors, the branch pipelines are connected in parallel, and each branch pipeline corresponds to the dismounting device and is used for controlling the dismounting devices to lift. The synchronous jacking system for the hydraulic components of the main pump utilizes a plurality of branch pipelines to be connected in parallel, and the pressure of each dismounting device is the same, so that the synchronous lifting of the hydraulic components of the main pump can be carried out, the difficult problem that original equipment is difficult to dismount due to clamping can be solved, the operation time is reduced, a key path is saved, the automation and intelligence level of the equipment are improved, the working efficiency is improved, the personnel exposure dose is reduced, and the safety in the process of dismounting the hydraulic components on site is improved.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:

FIG. 1 is a schematic diagram of a hydraulic component synchronization jacking system for a main pump in an embodiment of the utility model;

fig. 2 is a hydraulic schematic diagram of a synchronous jacking system for hydraulic components of a main pump in one embodiment of the utility model.

FIG. 3 is a hydraulic schematic of a pump station assembly in one embodiment of the utility model;

FIG. 4 is a schematic elevational view of the structure of the connector in one embodiment of the utility model;

FIG. 5 is a schematic side view of a connector in one embodiment of the utility model;

FIG. 6 is a schematic view of the structure of a beam in one embodiment of the utility model;

FIG. 7 is a schematic view of the structure of a lifter in one embodiment of the utility model;

FIG. 8 is a schematic view of the structure of a fastener in one embodiment of the utility model.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are merely for convenience of describing the present technical solution, and are not indicative that the indicated moving ring monitoring device or element must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 8, a synchronous lifting system for hydraulic components of a main pump according to some embodiments of the present utility model includes a plurality of dismounting devices 1 for connecting with a flange surface 4 of a pump casing of the main pump, a hydraulic lifting device 2 for controlling lifting of the dismounting devices 1, and a control system 3 for controlling actions of the hydraulic lifting device 2, wherein the dismounting devices 1 are uniformly distributed on the flange surface 4 of the pump casing of the main pump at intervals along a circumferential direction of the flange surface 4 of the pump casing of the main pump, and the dismounting devices 1 are used for connecting with the hydraulic components 5. The hydraulic jacking device 2 comprises a pump station assembly 21 and a control pipeline 22 connected with the pump station assembly 21, wherein the control pipeline 22 comprises a first connecting pipeline 221, the first connecting pipeline 221 is divided into a plurality of branch pipelines 222 through a quick connector 23, the branch pipelines 222 are connected in parallel, and each branch pipeline 222 is correspondingly connected with the dismounting device 1 and used for controlling the dismounting device 1 to lift.

It will be appreciated that the process of dismantling the hydraulic component 5 of the main pump is a delicate operation, equipment safety must be ensured, and during servicing of the hydraulic component 5, the dismantling device 1 is required to lift the hydraulic component 5 out of the pump housing opening of the main pump and then to lift the hydraulic component 5 out by means of an external handling mechanism. Before the hydraulic component 5 is lifted and disassembled, the usability of the synchronous lifting system of the hydraulic component of the main pump needs to be checked in advance, and the hydraulic lifting device comprises a disassembling device 1, a hydraulic lifting device 2, electric equipment, a control system 3 and the like, wherein if no abnormality exists in the checking, the flange surface 4 of the pump shell of the main pump is thoroughly cleaned before the disassembling device 1 and the hydraulic lifting device 2 are installed, so that foreign matters are prevented from entering the disassembling device 1 or the hydraulic lifting device 2 in the lifting process, and the components are damaged.

The synchronous jacking system for the hydraulic components of the main pump utilizes a plurality of branch pipelines to be connected in parallel, and the pressure of each dismounting device is the same, so that the synchronous lifting of the hydraulic components of the main pump can be performed, the difficult problem that original equipment is blocked and difficult to dismount can be solved, the operation time is reduced, a key path is saved, the automation and intelligence level of the equipment are improved, the working efficiency is improved, the personnel exposure dose is reduced, and the safety in the dismounting process of the hydraulic components 5 on site is improved. Preferably, the number of the dismounting devices 1 in the embodiment is 4, and the 4 dismounting devices 1 lift the hydraulic component 5 together, so that the stability and the reliability of the synchronous lifting system of the hydraulic component of the main pump are ensured. In other embodiments, the number of the dismounting devices 1 may be adjusted according to practical situations, and may be 5 or more than 5, which is only required to be enough to stably and effectively dismount the hydraulic component 5, which is not limited herein.

In this embodiment, as shown in fig. 1, each dismounting device 1 includes a bottom plate 14 provided on the flange face 4 of the main pump casing, lifters 13 provided on the bottom plate 14, and a connection member 11 connected to the hydraulic member 5, the lifters 13 are further connected to a branch line 222 to be lifted under the control of the pump station assembly 21, thereby driving the connection member 11 and the hydraulic member 5 to be lifted, and each dismounting device 1 further includes a cross beam 12 connected to the connection member 11, and the pair of lifters 13 are respectively connected to both sides of the cross beam 12 for lifting the hydraulic member 5.

The lifter 13 is connected with the beam 12 through bolts or through clamping grooves, and is used for lifting the beam 12 so as to detach the hydraulic component 5 from the main pump. The lift 13 is preferably a jack, and in other embodiments, the lift 13 may be an air lift or an electric lift. The bottom plate 14 is used for supporting and positioning the lifter 13.

Further, the hydraulic member 5 has a lug portion 51 on the outer periphery thereof, and the connector 11 is connected to the lug portion 51. In this embodiment, 4 lug parts 51 are uniformly distributed on the circumferential end surface of the hydraulic component 5, and a handle 111 is disposed on the side of the connecting piece 11 facing away from the hydraulic component 5, which can be used to facilitate the operator to adjust the position of the connecting piece 11 for better working. The beam 12 is provided on both sides with ring hanging parts 121 connected to an external carrying mechanism which can lift the beam 12 and adjust the position of the beam 12 by being connected to the ring hanging parts 121.

As shown in fig. 5 and 6, the connector 11 has a connecting hole 112 penetrating the upper and lower ends thereof, the cross beam 12 has a penetrating hole 122 corresponding to the connecting hole 112, and the fastener 15 is threaded through the connecting hole 112 and the penetrating hole 122 and is screwed with the lug part 51. It will be appreciated that to secure the cross member 12 and prevent tipping of the connector 11, the cross member 12 and the connector 11 are connected and fastened to the tab portion 51 by a fastener 15, preferably a set screw 15. Still further, the external handling mechanism may be connected to the cross beam 12 by an auxiliary spreader, which may be made of high quality carbon steel, the surface of which may be nickel plated, further enhancing the stability of the handling process.

Preferably, the lifter 13 is provided with a displacement sensor 131 and a pressure sensor 132. The displacement sensor 131 is used for measuring the lift distance of the hydraulic component 5 and for transmitting the measured value into the control system 3, and the pressure sensor 132 is used for measuring the pressure provided by the lifter 13 to the hydraulic component 5 and for transmitting the pressure value into the control system 3.

In this embodiment, as shown in fig. 2, the pump station assembly 21 includes a hydraulic pump station 211, a reversing valve set 212 connected to the hydraulic pump station 211, the control pipeline 22 further includes a second connecting pipeline 223, the outlet ends of the branch pipelines 222 located at the downstream pipeline portions of the disassembly devices 1 are combined and then connected to the inlet ends of the second connecting pipeline 223, and the reversing valve set 212 has a first interface 2121 and a second interface 2122, the first interface 2121 is connected to the outlet end of the first connecting pipeline 221, and the second interface 2122 is connected to the inlet ends of the second connecting pipeline 223. It can be appreciated that the specification of the hydraulic pump station 211 may be preferably a hydraulic pump station greater than or equal to 700bar, the hydraulic pump station 211 has good heat dissipation and noise reduction functions, the working noise is less than or equal to 90 db, and further, the hydraulic pump station 211 adopts a modularized design, which has strong expansibility. The hydraulic pump station 211 can be provided with 8 output ports, and can drive 8 lifters 13 to work simultaneously, and the safety factor of the hydraulic pump station 211 is 4:1, the safety performance is high, and whole hydraulic power unit 211 is small, and convenient transportation is simple easy operation.

As shown in fig. 3, the hydraulic pump station 211 is provided with a hydraulic pump 2111, a driving motor 2112 connected to the hydraulic pump 2111, an oil outlet line 2116, an oil return line 2117, an oil tank 2118 and an emergency power source, the reversing valve block 212 is further provided with a third port 2123 and a fourth port 2124, the inlet end of the oil outlet line 2116 is connected to the hydraulic pump 2111, the outlet end thereof is connected to the third port 2123, the inlet end of the oil return line 2117 is connected to the fourth port 2124, the outlet end thereof is connected to the oil tank 2118, the oil outlet line 2116 is provided with a first overflow valve 2115 and a first pressure gauge 2114 in sequence from the inlet end to the outlet end thereof, and the oil return line 2117 is provided with a filter 2113.

As can be appreciated, the hydraulic pump 2111 has the characteristics of high flow, low outlet head and stable oil pressure, and ensures stable oil supply to the lifter 13 under different working conditions, and can drive the hydraulic oil of the oil tank 2118 into the oil outlet line 2116. The drive motor 2112 may be coupled to the hydraulic pump 2111 through an elastic coupling for powering the hydraulic pump 2111. The filter 2113 is used for intercepting various dirt such as abrasive particles generated by the hydraulic element on the control pipeline 22 in the working process, the first pressure meter 2114 is used for measuring the flow pressure value in the hydraulic pump station 211, and the first overflow valve 2115 is used for keeping the pressure in the hydraulic pump station 211, so that the pressure is kept stable, and the stability and the reliability of the hydraulic pump station 211 in the working process are ensured. Preferably, the emergency power supply may be a UPS power supply, which may provide power to the hydraulic pump station 211 in an emergency during a power failure process, and a manual hydraulic pump interface may be provided in the hydraulic pump station 211, so as to improve the equipment reliability margin of the hydraulic pump station 211. The hydraulic pump station 211 may also be provided with a one-way throttle control valve for adjusting the total flow of the control line 22.

Preferably, the reversing valve group 212 may be a three-position four-way solenoid valve, and the lifter 13 may realize lifting motion through reversing of the three-position four-way solenoid valve, so as to ensure convenience and simplicity in use of the dismounting device 1. The first connecting line 221 is provided with a second pressure gauge 2211 and a second overflow valve 2212, the second pressure gauge 2211 is used for measuring the flow pressure value on the first connecting line 221, and the second overflow valve 2212 is used for keeping the pressure on the first connecting line 221 stable. Further, a third overflow valve 2231 is provided on the second connection line 223, and the third overflow valve 2231 is used for keeping the pressure on the second connection line stable.

In the present embodiment, a check valve 2221, a control valve 2222, an ascending throttle valve 2223, and a descending throttle valve 2224 are provided on each branch line 222 at a downstream line portion of each dismounting device 1. The check valve 2221 can avoid reverse flow of fluid, avoid excessive pressure in the system, divide an oil path, form an actuating mechanism by matching with a throttle valve, and avoid reaction. The control valve 2222 is preferably a two-position two-way ball valve, and it is understood that the lifting action of each lifter 13 is controlled by a two-position two-way ball valve, which can be used to control the on-off of oil on the corresponding branch line 222, and the two-position two-way ball valve has high response frequency, almost no leakage, long service life, and good pressure resistance and shock resistance. The rising throttle 2223 is used to regulate the rising flow on branch line 222, and the falling throttle 2224 is used to regulate the falling flow on branch line 222. Further, by adjusting the flow through the control valve 2222, the rising throttle valve 2223 and the falling throttle valve 2224, the precise adjustment of the flow of the hydraulic lifting device 2 is realized, and the flow can be adjusted according to different working conditions, so that the speed of the lifter 13 during movement can be controlled more precisely, and the precision of the rising and falling synchronization of the lifter 13 is improved.

In the present embodiment, the control system 3 includes an electric box 31 and a control circuit disposed in the electric box 31. Wherein, still be equipped with power indicator, alarm lamp, reset button, pump station pilot lamp and scram button in this electronic box 31. The power indicator lamp is used for displaying the opening and closing of a power supply, and the alarm lamp is used for giving an alarm when the pressure value of the power output unit exceeds a set value if equipment is jammed or stuck when the hydraulic component synchronous jacking system of the main pump works, so that an operator can process in time. The reset button is used for enabling components in the main pump hydraulic component synchronous lifting system to be restored to an initial working state so as to facilitate the next disassembly procedure. The pump station indicator light is used for displaying whether the hydraulic pump station 211 is in a working state, and the emergency stop button is used for stopping the movement of the synchronous jacking system of the hydraulic component of the main pump immediately when an emergency occurs. The displacement sensor 131, the pressure sensor 132, the control valve 2222 and the descending throttle valve 2224 are all in communication connection with the control system 3, so that the automation and intelligent level of the hydraulic component synchronous jacking system of the main pump are improved, and the working efficiency is improved.

Preferably, all the interfaces and hoses of the hydraulic jacking device 2 are standard quick connectors, so that the hydraulic jacking device is easy to connect, use and maintain, and circulation is smoother.

It can be understood that the use steps of the main pump hydraulic component synchronous jacking system are as follows:

1. checking availability of the dismounting device 1, the hydraulic jacking device 2, the electric equipment, the control system 3 and the like, and thoroughly cleaning the flange surface 4 of the main pump shell after no abnormality is checked;

2. placing lifters 13 on the flange surface 4 of the main pump shell, wherein the bottom end of each lifter 13 is provided with a bottom plate 14, and the placement process of the bottom plates 14 is performed by observing the positions of bolt holes on the flange of the pump shell so as to avoid the bolt holes;

3. the lifter 13 is arranged at the center position of the bottom plate 14, and meanwhile, whether a hydraulic oil pipe, a displacement sensor 131 and the like on the lifter 13 interfere with peripheral pipelines or have factors influencing jacking or not is concerned, so that the position of the lifter 13 is adjusted;

4. connecting the connector 11 with the lug part 51 of the hydraulic component, arranging the handle 111 in the direction facing away from the hydraulic component 5, lifting the beam 12 by using an external conveying mechanism, connecting the beam 12 with the lifter 13, screwing a bolt into the lug part 51 and fastening;

5. connecting the hydraulic pipeline and the displacement sensor 131 to ensure that the wiring position is free from oil seepage and looseness, numbering the lifter 13, facilitating the checking of operators, being easy to distinguish and improving the working efficiency;

6. starting the main pump hydraulic component synchronous jacking system, clicking a reset button to reset the component, starting a driving motor 2112, and confirming whether the steering direction of the driving motor 2112 is the same as the identification or not, wherein the pressure can be established by a party needing to ensure the consistent direction;

7. parameters are set according to system requirements and actual working conditions, operation is carried out between pre-jacking, automatic and manual modes according to working scenes, and jacking displacement and pressure change are paid attention to in real time. And meanwhile, whether the jacking height of the hydraulic component 5 is synchronous or not is concerned, and if abnormal, the equipment is stopped in time.

It can be understood that this synchronous jacking system of main pump hydraulic component can set up a jacking volume in advance according to equipment height, whether inspection dismounting device 1 can normally work, and can judge whether this riser 13 has synchronism, can also super moment early warning, equipment jacking in-process, if meet equipment jam, viscidity, the alarm can appear in the pressure value of power take off unit, with the security of reminding the synchronous jacking system of this main pump hydraulic component of warning probably appearing, the synchronous jacking system of this main pump hydraulic component can realize four-phase 8-point synchronous automatic jacking, the control deviation is less than 0.5 mm's requirement, the precision is high, possess external manual pressure pump and emergency power source simultaneously, and this supplementary hoist rigidity height all passes through mechanical calculation, the jacking process deflection is little. The problem that original equipment is blocked and is difficult to detach is solved, the operation time is reduced, a key path is saved, the automation and intelligence level of equipment are improved, the working efficiency is improved, the personnel exposure dose is reduced, and the safety of the on-site hydraulic component 5 in the detaching process is improved.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A synchronous jacking system for hydraulic components of a main pump, comprising: the hydraulic lifting device comprises a plurality of dismounting devices (1) connected with a flange surface (4) of a main pump shell, a hydraulic lifting device (2) for controlling the dismounting devices (1) to lift and a control system (3) for controlling the hydraulic lifting device (2) to act;

the dismounting devices (1) are uniformly distributed on the flange surface (4) of the main pump shell at intervals along the circumferential direction of the flange surface (4) of the main pump shell and are used for connecting a hydraulic component (5);

the hydraulic jacking device (2) comprises a pump station assembly (21) and a control pipeline (22) connected with the pump station assembly (21), wherein the control pipeline (22) comprises a first connecting pipeline (221), the first connecting pipeline (221) is divided into a plurality of branch pipelines (222) through a quick connector (23), the branch pipelines (222) are connected in parallel, and each branch pipeline (222) is correspondingly connected with one dismounting device (1) and used for controlling lifting of the dismounting device (1).

2. The main pump hydraulic component synchronous jacking system according to claim 1, characterized in that each dismounting device (1) comprises a bottom plate (14) arranged on the flange surface (4) of the main pump casing, a lifter (13) arranged on the bottom plate (14), and a connecting piece (11) connected with the hydraulic component (5), wherein the lifter (13) is further connected to the branch line (222) so as to lift under the control of the pump station assembly (21), thereby driving the connecting piece (11) and the hydraulic component (5) to lift.

3. The main pump hydraulic component synchronous jacking system according to claim 2, characterized in that the hydraulic component (5) has a lug portion (51) at its outer periphery, and the connector (11) is connected to the lug portion (51).

4. The main pump hydraulic component synchronous jacking system according to claim 2, characterized in that each said dismounting device (1) further comprises a cross beam (12) connected to said connection piece (11);

a pair of lifters (13) are respectively connected to both sides of the cross member (12) for lifting the hydraulic member (5).

5. The synchronous jacking system of hydraulic components for main pump as claimed in claim 4, wherein said connecting member (11) has a connecting hole (112) penetrating the upper and lower ends thereof, and said cross member (12) has a penetrating hole (122) provided corresponding to said connecting hole (112);

a fastener (15) is provided through the through hole (122) and the connecting hole (112), and is screwed with the hydraulic member (5).

6. The main pump hydraulic component synchronous jacking system as claimed in claim 4, wherein a handle (111) is provided on the side of said connector (11) facing away from said hydraulic component (5);

and the two sides of the cross beam (12) are respectively provided with a ring hanging part (121) connected with an external conveying mechanism.

7. The main pump hydraulic component synchronous jacking system according to claim 2, characterized in that a displacement sensor (131) is provided on the lifter (13) for measuring the lifting distance of the hydraulic component (5), and a pressure sensor (132) is provided for measuring the pressure provided by the lifter (13) to the hydraulic component (5).

8. The main pump hydraulic component synchronous jacking system according to claim 1, characterized in that said pump station assembly (21) comprises a hydraulic pump station (211), a reversing valve group (212) connected to said hydraulic pump station (211);

the control pipeline (22) further comprises a second connecting pipeline (223), and the outlet ends of the plurality of branch pipelines (222) positioned at the downstream pipeline parts of the disassembling devices (1) are combined and then connected with the inlet ends of the second connecting pipeline (223);

the reversing valve group (212) is provided with a first interface (2121) and a second interface (2122), the first interface (2121) is connected with the outlet end of the first connecting pipeline (221), and the second interface (2122) is connected with the inlet end of the second connecting pipeline (223).

9. The main pump hydraulic component synchronous jacking system according to claim 8, wherein a hydraulic pump (2111), a driving motor (2112) connected with the hydraulic pump (2111), an oil outlet pipeline (2116), an oil return pipeline (2117) and an oil tank (2118) are arranged in the hydraulic pump station (211);

the reversing valve group (212) is also provided with a third interface (2123) and a fourth interface (2124);

the inlet end of the oil outlet pipeline (2116) is connected with the hydraulic pump (2111), and the outlet end of the oil outlet pipeline is connected with the third interface (2123);

the inlet end of the oil return pipeline (2117) is connected with the fourth interface (2124), and the outlet end of the oil return pipeline is connected with the oil tank (2118);

the oil outlet pipeline (2116) is sequentially provided with a first overflow valve (2115) and a first pressure gauge (2114) along the inlet end to the outlet end of the oil outlet pipeline;

a filter (2113) is arranged on the oil return pipeline (2117).

10. The synchronous jacking system for hydraulic components of the main pump as set forth in claim 1, wherein each of said branch lines (222) is provided with a check valve (2221), a control valve (2222), a rising throttle valve (2223) and a falling throttle valve (2224) at a downstream line portion of each of said dismounting devices (1).