Turnover device and method for lower half part of runner chamber of bulb tubular turbine

Abstract

The invention provides a bulb tubular turbine runner chamber lower half turning device and a method thereof.The bulb tubular turbine runner chamber lower half turning device comprises turning units oppositely arranged on the front side and the rear side of the runner chamber lower half, and each turning unit comprises a heavy load type track, a walking mechanism, a supporting base and a jacking mechanism; the heavy-load type track is fixedly arranged below the lower half portion of the runner chamber, the walking mechanism is rotationally connected to the lower side of the supporting base, located in the heavy-load type track and capable of driving the supporting base to move back and forth along the heavy-load type track, and the lower end of the jacking mechanism is connected with the supporting base. The upper end of the jacking mechanism is hinged to the runner chamber lower half part and used for controlling the overturning angle of the runner chamber lower half part. According to the turnover device, the main shaft and the rotating wheel do not need to be dismounted, so that manpower and material resources for dismounting are greatly reduced, the dismounting operation risk is reduced, and the turnover device can be repeatedly used and has the advantages of being high in working efficiency and safe to operate.

Description

Technical Field

[0001] The present application relates to the technical field of hoisting auxiliary equipment for hydro-generators, and particularly relates to a turning-over device and method for the lower half of a bulb tubular turbine runner chamber. Background Art

[0002] The bulb tubular turbine runner chamber is composed of upper and lower halves. Both ends of it are bell mouths. The middle part is a spherical runner centered on the runner body. Its upstream flange is connected to the outer water distribution ring, and its downstream side is sleeved into the external expansion joint. When replacing or overhauling the runner chamber, the lower half of the runner chamber needs to be hoisted to the installation site.

[0003] There are generally two existing conventional overhaul processes: one is to directly hoist the lower half of the runner chamber by the bridge crane after hoisting out the main shaft. The process of hoisting out the main shaft takes about 60 days for 10 people, with cumbersome construction steps and high operation risks, extremely consuming construction period and manpower; the other is to first remove the runner, and with the cooperation of the plant bridge crane and the chain block and based on the rotation method, bypass the lower half of the runner chamber around the main shaft, and then hoist out the lower half of the runner chamber. This method alone takes 15 days for 10 people to remove the runner, and the operation risk is high.

[0004] In view of this, the present application provides a turning-over device and method for the lower half of a bulb tubular turbine runner chamber with high overhaul efficiency and low operation risk. Summary of the Invention

[0005] In order to solve the above technical problems, the present application provides a turning-over device for the lower half of a bulb tubular turbine runner chamber, which includes turning-over units oppositely arranged on the front and rear sides of the lower half of the runner chamber. Each turning-over unit includes a heavy-duty track, a traveling mechanism, a support base, and a jacking mechanism. The heavy-duty track is fixedly arranged below the lower half of the runner chamber. The traveling mechanism is rotatably connected to the lower side of the support base, and the traveling mechanism is located within the heavy-duty track and can drive the support base to move back and forth along the heavy-duty track. The lower end of the jacking mechanism is connected to the support base, and the upper end of the jacking mechanism is hinged to the lower half of the runner chamber for controlling the turning angle of the lower half of the runner chamber.

[0006] In some embodiments, the heavy-duty track is fixed to the ground below the lower half of the runner chamber by ground anchor bolts.

[0007] In some embodiments, the traveling mechanism includes a driving motor, a driving wheel, and a plurality of traveling wheels. The driving wheel and the plurality of traveling wheels are rotatably connected to the lower side of the support base and are placed within the heavy-duty track. The driving motor is installed on the support base, and the driving end of the driving motor is connected to the driving wheel for driving the driving wheel to rotate.

[0008] In some embodiments, the plurality of traveling wheels are symmetrically arranged on the left and right sides of the driving wheel.

[0009] In some embodiments, a mounting base is connected to the support base, and the driving motor is disposed on the mounting base.

[0010] In some embodiments, the jacking mechanism includes a first hydraulic cylinder. The lower end of the first hydraulic cylinder is fixed to the upper side of the middle part of the support base, and the upper end of the first hydraulic cylinder is hinged to the middle part of the lower half of the runner chamber. On both the left and right sides of the first hydraulic cylinder, a second hydraulic cylinder and a luffing cylinder are provided. The lower end of the second hydraulic cylinder is hinged to the support base, and the upper end of the second hydraulic cylinder is hinged to the lower half of the runner chamber. One end of the luffing cylinder is hinged to the middle part of the corresponding second hydraulic cylinder, and the other end of the luffing cylinder is hinged to the support base.

[0011] In some embodiments, a triangular reinforcing rib is further included, and the triangular reinforcing rib is disposed at the lower end of the first hydraulic cylinder to prevent the first hydraulic cylinder from tilting.

[0012] In some embodiments, displacement sensors are connected to the piston rods of the first hydraulic cylinder, the second hydraulic cylinder, and the luffing cylinder.

[0013] In some embodiments, a fixing frame is further included. The fixing frame includes a first fixing frame and a second fixing frame. The two ends of the first fixing frame are respectively connected to two relatively arranged first hydraulic cylinders, and the two ends of the second fixing frame are respectively connected to two relatively arranged second hydraulic cylinders.

[0014] The present application further provides a method for turning over the lower half of a bulb tubular turbine runner chamber. The method realizes the turning over of the lower half of the runner chamber based on the above-mentioned turning over device for the lower half of the bulb tubular turbine runner chamber, and specifically includes the following steps:

[0015] S100. Install a heavy-duty track below the lower half of the runner chamber;

[0016] S200. Use the traveling mechanism to move the support base and the jacking mechanism to directly below the lower half of the runner chamber, and hinge the jacking mechanism to the lower half of the runner chamber;

[0017] S300. Simultaneously contract the first hydraulic cylinder (510) and the second hydraulic cylinders (520) disposed on the left and right sides of the first hydraulic cylinder (510) to lower the lower half of the runner chamber (100) by 200 - 400 mm;

[0018] S400. Jack up the second hydraulic cylinder on the left side of the first hydraulic cylinder, the first hydraulic cylinder compensates synchronously, and simultaneously contract the second hydraulic cylinder on the right side of the first hydraulic cylinder, and then control the traveling mechanism to move to the left side, so as to drive the lower half of the runner chamber to rotate clockwise around the axis;

[0019] S500. When the lower half of the runner chamber is rotated clockwise by an angle of 30°-50°, retract the second hydraulic cylinder on the left side of the first hydraulic cylinder, and control the first hydraulic cylinder to lift the lower half of the runner chamber, and the second hydraulic cylinder on the right side of the first hydraulic cylinder compensates synchronously;

[0020] S600. Until the lower half of the runner chamber is rotated clockwise by an angle of 60°-90°, at this time, the lower half of the runner chamber can be horizontally hoisted by an external overhead crane, so as to complete the flipping hoisting of the lower half of the runner chamber.

[0021] Compared with the prior art, for the device and method for flipping the lower half of the bulb tubular turbine runner chamber provided by the present application, the device first uses the traveling mechanism to move the support base and the lifting mechanism installed on the support base to directly below the lower half of the runner chamber, and hinge the upper end of the lifting mechanism to the lower half of the runner chamber; then, the flipping angle of the lower half of the runner chamber is rotated by the lifting mechanism so that the lower half of the runner chamber rotates clockwise from the initial state. After flipping to a certain angle, use the traveling mechanism to move leftward to drive the lower half of the runner chamber to move leftward; finally, the lower half of the runner chamber is rotated to the predetermined hoisting position by the lifting mechanism, and the lower half of the runner chamber can be hoisted out to the designated maintenance site by an external overhead crane, realizing the flipping of the lower half of the runner chamber. Compared with the existing conventional process, the device for flipping the lower half of the bulb tubular turbine runner chamber provided by the present application does not need to remove the main shaft and the runner, greatly reducing the manpower and material resources for removal, reducing the risk of removal operations, and moreover, the flipping device can be reused, featuring high working efficiency and safe operation. Brief Description of the Drawings

[0022] By reading the detailed description of the following embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing some embodiments and are not considered as a limitation to the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0023] Figure 1 shows a schematic structural diagram of the device for flipping the lower half of the bulb tubular turbine runner chamber provided in some embodiments of the present application;

[0024] Figure 2 shows a flowchart of the method for flipping the lower half of the bulb tubular turbine runner chamber provided in some embodiments of the present application.

[0025] The reference numerals in the specific embodiments are as follows:

[0026] 100. Lower half of the runner chamber, 200. Heavy-duty track, 310. Driving wheel, 320. Traveling wheel, 400. Support base, 510. First hydraulic cylinder, 520. Second hydraulic cylinder, 530. Luffing cylinder, 540 Triangular stiffener, 610. First fixing bracket, 620. Second fixing bracket. Detailed implementation manners

[0027] In the description of the present application, it should be understood that when terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are used to indicate the orientation or positional relationship, without special instructions, it is understood as the orientation or positional relationship based on the drawings shown. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present application. Taking Figure 1 as an example, upward perpendicular to the paper surface is the upper, downward perpendicular to the paper surface is the lower, left perpendicular to the paper surface is the left, right perpendicular to the paper surface is the right, forward perpendicular to the paper surface is the front, and backward perpendicular to the paper surface is the rear.

[0028] In addition, features limited by "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Features limited by "first" and "second" may explicitly or implicitly include at least one of the limited features. When the description "a plurality of" appears, it generally means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In the present application, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0030] In the description of this specification, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0031] Please refer to Figure 1 As shown, a turning-over device for the lower half of a bulb tubular turbine runner chamber provided by an embodiment of the present application includes turning-over units oppositely arranged on the front and rear sides of the lower half 100 of the runner chamber. Each turning-over unit includes a heavy-duty track 200, a traveling mechanism, a support base 400, and a jacking mechanism. The heavy-duty track 200 is fixedly arranged below the lower half 100 of the runner chamber. The traveling mechanism is rotatably connected to the lower side of the support base 400, and the traveling mechanism is located within the heavy-duty track 200 and can drive the support base 400 to move back and forth along the heavy-duty track 200. The lower end of the jacking mechanism is connected to the support base 400, and the upper end of the jacking mechanism is hinged to the lower half 100 of the runner chamber for controlling the turning angle of the lower half 100 of the runner chamber.

[0032] In the above embodiment, first, the traveling mechanism is used to move the support base 400 and the jacking mechanism installed on the support base 400 to directly below the lower half 100 of the runner chamber, and the upper end of the jacking mechanism is hinged to the lower half 100 of the runner chamber. Then, the jacking mechanism is used to lower the lower half 100 of the runner chamber by 200 - 400 mm to prevent it from hitting the runner during the subsequent turning process. Then, the jacking mechanism is used to turn the lower half 100 of the runner chamber so that the lower half 100 of the runner chamber turns clockwise from the initial state (the initial state refers to the state when the lower half 100 of the runner chamber is installed on the runner and has not been removed). After turning to a certain angle, the traveling mechanism is used to move leftward, thereby driving the lower half 100 of the runner chamber to move leftward. Finally, the jacking mechanism is used to turn the lower half 100 of the runner chamber to the predetermined lifting position, and the external bridge crane can be used to lift the lower half 100 of the runner chamber out to the designated maintenance site, realizing the turning-over of the lower half 100 of the runner chamber. Compared with the existing conventional process, the turning-over device for the lower half of the bulb tubular turbine runner chamber provided by the present application does not require the removal of the main shaft and the runner, greatly reducing the manpower and material resources for removal and reducing the risk of removal operations. It has the characteristics of high working efficiency and safe operation.

[0033] It should be noted that the flipping angle of the lower half 100 of the runner chamber can also be adjusted by the jacking mechanism to flip the lower half 100 of the runner chamber counterclockwise from the initial state. After flipping to a certain angle, the traveling mechanism is used to move to the right, thereby driving the lower half 100 of the runner chamber to move to the right. Then, the lower half 100 of the runner chamber is flipped to the predetermined lifting position by the jacking mechanism, and the lower half 100 of the runner chamber can be lifted out to the designated maintenance site by using an external overhead crane, realizing the flipping of the lower half 100 of the runner chamber.

[0034] In the actual application process, an external control system can also be set up to connect the traveling mechanism and the jacking mechanism to the control system, and the control system is used to precisely control the traveling mechanism and the jacking mechanism, realizing the automatic movement of the traveling mechanism and the automatic cooperation of the jacking mechanism for jacking, further improving the safety and automation of the operation.

[0035] In some embodiments, the heavy-duty track 200 is fixed to the ground under the lower half 100 of the runner chamber by anchor bolts.

[0036] In the above embodiments, the heavy-duty track 200 is fixed directly below the lower half 100 of the runner chamber by anchor bolts, thereby ensuring that the heavy-duty track 200 can be stably installed on the ground directly below the lower half 100 of the runner chamber. In other embodiments, the heavy-duty track 200 can also be fixed by other means, such as welding, concrete pouring, etc.

[0037] In some embodiments, the traveling mechanism includes a driving motor (not shown in the figure), a driving wheel 310, and a plurality of traveling wheels 320. The driving wheel 310 and the plurality of traveling wheels 320 are rotatably connected to the lower side of the support base 400 and are placed inside the heavy-duty track 200. The driving motor is installed on the support base 400, and the driving end of the driving motor is connected to the driving wheel 310 for driving the driving wheel 310 to rotate.

[0038] In the above embodiments, the plurality of traveling wheels 320 are symmetrically arranged on the left and right sides of the driving wheel 310. Since the lower half 100 of the runner chamber has a large mass, when the lower half 100 of the runner chamber is connected to the support base 400 through the jacking mechanism, an external force is required to drive the support base 400 to move back and forth along the heavy-duty track 200. By setting the driving motor to drive the driving wheel 310 to rotate, the driving wheel 310 and the plurality of traveling wheels 329 arranged on the left and right sides of the driving wheel 310 can drive the support base 400 to move inside the heavy-duty track 200.

[0039] In some embodiments, a mounting base (not shown in the figure) is connected to the support base 400, and the driving motor is arranged on the mounting base.

[0040] In the above embodiments, the drive motor is fixed to the support base 400 through a mounting base provided on the support base 400.

[0041] In some embodiments, the jacking mechanism includes a first hydraulic cylinder 510. The lower end of the first hydraulic cylinder 510 is fixed to the upper side of the middle of the support base 400. The upper end of the first hydraulic cylinder 510 is hinged to the middle of the lower half 100 of the runner chamber. On both the left and right sides of the first hydraulic cylinder 510, a second hydraulic cylinder 520 and a luffing cylinder 530 are provided. The lower end of the second hydraulic cylinder 520 is hinged to the support base 400, and the upper end of the second hydraulic cylinder 520 is hinged to the lower half 100 of the runner chamber. One end of the luffing cylinder 530 is hinged to the middle of the corresponding second hydraulic cylinder 520, and the other end of the luffing cylinder 530 is hinged to the support base 400.

[0042] In the above embodiments, the load-bearing capacity of the piston rods of the first hydraulic cylinder 510 and the second hydraulic cylinder 520 ≥ 1 / 3 of the weight of the lower half 100 of the runner chamber, and the piston rod stroke ≥ the runner chamber radius + 200 mm. By the mutual cooperation of the first hydraulic cylinder 510 and the two second hydraulic cylinders 520, the flipping angle of the lower half 100 of the runner chamber can be controlled, and the luffing cylinder 530 can adjust the angle between the corresponding second hydraulic cylinder 520 and the support base 400.

[0043] In some embodiments, a triangular reinforcing rib 540 is further included. The triangular reinforcing rib 540 is provided at the lower end of the first hydraulic cylinder 510 to prevent the first hydraulic cylinder 510 from tilting.

[0044] In the above embodiments, by using the provided triangular reinforcing rib 540, the phenomenon that the first hydraulic cylinder 510 tilts due to force can be effectively prevented.

[0045] In some embodiments, displacement sensors (not shown in the figure) are connected to the piston rods of the first hydraulic cylinder 510, the second hydraulic cylinder 520, and the luffing cylinder 530.

[0046] In the above embodiments, based on the provided displacement sensors, the jacking stroke of the corresponding cylinder can be measured in real time, and then the jacking height of the cylinder can be accurately controlled.

[0047] In some embodiments, a fixing frame is further included. The fixing frame includes a first fixing frame 610 and a second fixing frame 620. The two ends of the first fixing frame 610 are respectively connected to two relatively arranged first hydraulic cylinders 510, and the two ends of the second fixing frame 620 are respectively connected to two relatively arranged second hydraulic cylinders 520.

[0048] In the above-described embodiment, by providing the first fixing frame 610 and the second fixing frame 620, the two first hydraulic cylinders 510 provided on the front and rear sides of the lower half 100 of the runner chamber can be connected, and the relatively arranged second hydraulic cylinders 520 can be connected in pairs, thereby preventing the first hydraulic cylinder 510 and the second hydraulic cylinder 520 from tipping over.

[0049] Please refer to Figure 2 As shown, the present application also provides a method for turning over the lower half of the bulb tubular turbine runner chamber. The method realizes the turning over of the lower half of the runner chamber based on the above-described turning over device for the lower half of the bulb tubular turbine runner chamber, and specifically includes the following steps:

[0050] S100. Install the heavy-duty track 200 below the lower half 100 of the runner chamber.

[0051] S200. Use the traveling mechanism to move the support base 400 and the lifting mechanism to directly below the lower half 100 of the runner chamber, and hinge the lifting mechanism with the lower half 100 of the runner chamber.

[0052] S300. Simultaneously contract the first hydraulic cylinder 510 and the second hydraulic cylinders 520 arranged on the left and right sides of the first hydraulic cylinder 510, so that the lower half 100 of the runner chamber descends by 200 - 400 mm, thereby ensuring that the runner will not be touched when the subsequent traveling mechanism drives the lower half 100 of the runner chamber to move.

[0053] S400. Lift the second hydraulic cylinder 520 on the left side of the first hydraulic cylinder 510, and the first hydraulic cylinder 510 compensates synchronously. At the same time, contract the second hydraulic cylinder 520 on the right side of the first hydraulic cylinder 510, and then control the traveling mechanism to move to the left, so as to drive the lower half 100 of the runner chamber to rotate clockwise around the axis.

[0054] S500. When the lower half 100 of the runner chamber rotates clockwise by an angle of 30° - 50°, retract the second hydraulic cylinder 520 on the left side of the first hydraulic cylinder 510, and control the first hydraulic cylinder 510 to lift the lower half 100 of the runner chamber, and the second hydraulic cylinder 520 on the right side of the first hydraulic cylinder 510 compensates synchronously.

[0055] S600. Until the lower half 100 of the runner chamber rotates clockwise by an angle of 60° - 90°, at this time, the lower half 100 of the runner chamber can be horizontally hoisted by an external bridge crane, thereby completing the turning over and hoisting of the lower half 100 of the runner chamber.

[0056] Based on the description of the beneficial technical effects of the above-described turning over device for the lower half of the bulb tubular turbine runner chamber, the method for realizing the turning over of the lower half 100 of the runner chamber based on the turning over device for the lower half of the bulb tubular turbine runner chamber has the same beneficial technical effects, which will not be elaborated here.

[0057] The above has introduced in detail a turning-over device and method for the lower half of the runner chamber of a bulb tubular turbine provided by the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A device for turning over the lower half of the runner chamber of a bulb tubular turbine, characterized in that: The invention comprises turning units which are relatively arranged at the front and rear sides of the lower half (100) of the wheel chamber, each turning unit comprises a heavy-load track (200), a walking mechanism, a support base (400) and a lifting mechanism, the heavy-load track (200) is fixedly arranged below the lower half (100) of the wheel chamber, the walking mechanism is rotatably connected to the lower side of the support base (400), and the walking mechanism is located in the heavy-load track (200) and can drive the support base (400) to move back and forth along the heavy-load track (200), the lower end of the lifting mechanism is connected to the support base (400), and the upper end of the lifting mechanism is hinged to the lower half (100) of the wheel chamber to control the turning angle of the lower half (100) of the wheel chamber.

2. The bulb tubular turbine runner chamber lower half turning device according to claim 1, characterized in that: The heavy-load track (200) is fixed to the ground below the lower half (100) of the runner chamber by means of ground anchor bolts.

3. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 1, characterized in that: The walking mechanism comprises a driving motor, a driving wheel (310) and a plurality of walking wheels (320); the driving wheel (310) and the plurality of walking wheels (320) are rotatably connected to the lower side of a support base (400) and are placed in a heavy-load track (200); the driving motor is mounted on the support base (400), and a driving end of the driving motor is connected to the driving wheel (310) for driving the driving wheel (310) to rotate.

4. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 3, characterized in that: The plurality of walking wheels (320) are symmetrically arranged on the left and right sides of the driving wheel (310).

5. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 1, characterized in that: The support base (400) is connected to a mounting base, and the drive motor is arranged on the mounting base.

6. The bulb tubular turbine runner chamber lower half turning device as claimed in claim 1, characterized in that: The lifting mechanism comprises a first hydraulic cylinder (510), the lower end of the first hydraulic cylinder (510) is fixed to the upper middle side of the support base (400), the upper end of the first hydraulic cylinder (510) is hinged to the middle of the lower half (100) of the runner chamber, and the left and right sides of the first hydraulic cylinder (510) are provided with a second hydraulic cylinder (520) and a variable-length cylinder (530), the lower end of the second hydraulic cylinder (520) is hinged to the support base (400), the upper end of the second hydraulic cylinder (520) is hinged to the lower half (100) of the runner chamber, one end of the variable-length cylinder (530) is hinged to the middle of the corresponding second hydraulic cylinder (520), and the other end of the variable-length cylinder (530) is hinged to the support base (400).

7. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 6, characterized in that: It also includes a triangular reinforcing rib (540), which is arranged at the lower end of the first hydraulic cylinder (510) to prevent the first hydraulic cylinder (510) from tilting.

8. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 7, characterized in that: The piston rods of the first hydraulic cylinder (510), the second hydraulic cylinder (520) and the amplitude-changing cylinder (530) are all connected to displacement sensors.

9. The device for turning over the lower half of the runner chamber of a bulb-type tubular turbine according to claim 8, characterized in that: It also includes a fixing frame, which includes a first fixing frame (610) and a second fixing frame (620), wherein both ends of the first fixing frame (610) are respectively connected to two first hydraulic cylinders (510) arranged opposite to each other, and both ends of the second fixing frame (620) are respectively connected to two second hydraulic cylinders (520) arranged opposite to each other.

10. A method for turning over the lower half of a bulb tubular turbine runner chamber, characterized in that: The method realizes turning over the lower half of the runner chamber based on the bulb tubular turbine runner chamber lower half turning over device according to any one of claims 1 to 9, specifically comprising the following steps: S100, installing a heavy-duty track (200) below the lower half (100) of the runner chamber; S200, using the walking mechanism to move the support base (400) and the lifting mechanism to the bottom of the lower half (100) of the runner chamber, and hinge the lifting mechanism to the lower half (100) of the runner chamber; S300, simultaneously contracting the first hydraulic cylinder (510) and the second hydraulic cylinders (520) disposed on the left and right sides of the first hydraulic cylinder (510) to lower the lower half (100) of the runner chamber by 200-400 mm; S400, lift the second hydraulic cylinder (520) on the left side of the first hydraulic cylinder (510), the first hydraulic cylinder (510) compensates synchronously, and the second hydraulic cylinder (520) on the right side of the first hydraulic cylinder (510) is retracted at the same time, and then the walking mechanism is controlled to move to the left side, so as to drive the lower half of the wheel chamber (100) to turn clockwise around the axis; S500, when the clockwise flip angle of the lower half of the runner room (100) is 30°-50°, the second hydraulic cylinder (520) on the left side of the first hydraulic cylinder (510) is withdrawn, and the first hydraulic cylinder (510) is controlled to lift the lower half of the runner room (100), and the second hydraulic cylinder (520) on the right side of the first hydraulic cylinder (510) is synchronously compensated; S600, until the clockwise turning angle of the lower half of the runner room (100) is 60°-90°, the lower half of the runner room (100) can be translated and hoisted by the external bridge crane, thereby completing the turning and hoisting of the lower half of the runner room (100).

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