Installation and measurement device and installation and measurement method for water distribution ring pipe of water-turbine generator set

Abstract

The invention relates to an installation and measurement device and an installation and measurement method for a water distribution ring pipe of a water-turbine generator set. The device comprises a rotary measuring device which is used for being installed at the center position of the water-turbine generator set and comprises a measuring arm which is rotatably arranged and a distance measuring instrument which is arranged at the tail end of the measuring arm; the measuring surface conversion equipment is used for being arranged on a flange surface of a branch pipe of the water distribution ring pipe, the measuring surface conversion equipment comprises a measuring flange, the measuring flange is used for being vertically opposite to the distance measuring instrument, and a measuring line is arranged on the measuring flange and is used for being matched with the distance measuring instrument to work. Compared with a traditional manual measurement mode with the help of a piano wire and a tape, the installation measurement device can automatically complete distance measurement, the measurement precision and the measurement efficiency are high, and the installation construction period and the construction quality of the water-turbine generator set and the water distribution ring pipe of the water-turbine generator set can be guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of installation and construction of hydro-generator sets, and in particular to a device and method for installing and measuring a water distribution ring pipe of a hydro-generator set. Background Art

[0002] The water distribution ring pipe is the core component of the Pelton turbine generator set. As the core pressure-bearing component located between the water inlet ball valve and the turbine runner, its main function is to evenly and symmetrically introduce water flow into each nozzle, driving the runner to rotate stably. With the continuous advancement of domestic technology, the size and weight of the water distribution ring pipe are also increasing, and the distance between the center of the Pelton turbine generator set and the measuring surface of the water distribution ring pipe is also increasing. In the existing technology, there is an angle of 68.4° between the center of the water distribution ring pipe and the flange surface of the water distribution ring pipe branch pipe. The traditional measurement method is to use the center of the water distribution ring pipe as the reference, draw out multiple piano lines parallel to the flange surfaces of each water distribution ring pipe branch pipe, and use a tape measure to measure the straight-line distance from the flange surface of the water distribution ring pipe branch pipe to the piano lines.

[0003] However, the manual measurement method of piano wire + tape measure will lead to increasingly larger measurement errors due to the continuous increase in measurement distance, and the arrangement of piano wire and pulling of tape measure will lead to low measurement efficiency, which greatly restricts the installation period of the Pelton turbine generator set. Summary of the Invention

[0004] Based on this, it is necessary to provide a water distribution ring pipe installation measurement device and installation measurement method for a water distribution ring pipe of a water turbine generator set to address the problems of large measurement errors and low measurement efficiency of traditional technologies, which affect the installation period and quality of the water distribution ring pipe of the water turbine generator set.

[0005] In a first aspect of the present application, a device for installing and measuring a water distribution ring pipe of a hydro-generator set is provided, comprising:

[0006] A rotation measuring device, the rotation measuring device is used to be installed at the center position of the hydro-generator set, and the rotation measuring device includes a rotatable measuring arm and a distance meter provided at the end of the measuring arm; and

[0007] The measuring surface conversion device is used to be installed on the flange surface of the water distribution ring pipe branch pipe. The measuring surface conversion device includes a measuring flange, which is used to be vertically opposite to the distance meter. A measuring line is provided on the measuring flange, and the measuring line is used to work in conjunction with the distance meter.

[0008] The installation measuring device of the scheme is applied to the use occasion of water turbine generator set water distribution ring pipe installation precision detection, wherein the water distribution ring pipe has a plurality of water distribution ring pipe branch pipes arranged at intervals in the circumferential direction, in use, the rotating measuring equipment is installed at the center position of the water turbine generator set, and then the measuring surface conversion equipment is installed at the flange surface of each water distribution ring pipe branch pipe, since the measuring surface conversion equipment is provided with a measuring flange, the measuring flange can convert the original measuring included angle of 68.4° of the flange surface of the water distribution ring pipe branch pipe into a 90° measuring included angle, so that when the measuring arm drives the range finder to be opposite to the measuring flange, the measuring flange and the range finder are perpendicular to each other, at this time, the distance value can be obtained by the range finder, and the distance value plus the length of the measuring arm can obtain the distance between the center position of the water turbine generator set and the flange surface of the water distribution ring pipe branch pipe, compared with the traditional manual measurement mode by means of the piano wire and the tape measure, the installation measuring device of the scheme can automatically complete distance measurement, and the measurement precision and the measurement efficiency are high, which is helpful to guarantee the installation construction period and the construction quality of the water turbine generator set and the water distribution ring pipe.

[0009] The technical scheme of the present application is further described below:

[0010] In one of the embodiments, the rotating measuring equipment further comprises a base, a center shaft, a balance arm, a counterweight and a support, the base is used to be installed at the center position of the water turbine generator set, the center shaft is rotatably arranged on the base, the balance arm and the measuring arm are connected and are both arranged on the center shaft, the counterweight is arranged at one end of the balance arm away from the measuring arm, the support is arranged at one end of the measuring arm away from the center shaft, and the range finder is arranged on the support.

[0011] In one of the embodiments, the support comprises a connecting plate and a fixing plate, the connecting plate is connected with one end of the measuring arm away from the center shaft, the fixing plate is connected to the end of the connecting plate at an angle, and the range finder is arranged on the fixing plate and is used to face the measuring surface conversion equipment.

[0012] In one of the embodiments, the rotating measuring equipment further comprises a driving mechanism, a winding drum and a steel wire rope, the driving mechanism is arranged at the top end of the center shaft, the driving mechanism is in transmission connection with the winding drum, one end of the steel wire rope is fixed to the winding drum, the steel wire rope is wound and installed on the outer cylinder wall of the winding drum, and the other end of the steel wire rope is in transmission connection with the balance arm and the measuring arm.

[0013] In one of the embodiments, the measuring surface conversion equipment further comprises an installation flange and a hinge, the installation flange is used to be installed at the flange surface of the water distribution ring pipe branch pipe, and the edge of the installation flange is in rotational connection with the edge of the measuring flange through the hinge.

[0014] In one of the embodiments, the measuring surface conversion device further comprises a first support, which is arranged in a spaced manner with the hinge, one end of the first support is connected with the mounting flange, and the other end of the first support is connected with the measuring flange;

[0015] And / or, the measuring flange is provided with a first lightening groove;

[0016] And / or, the measuring line is a cross-shaped line formed on the side of the measuring flange away from the mounting flange.

[0017] In one of the embodiments, the middle part of the mounting flange is provided with a positioning disc, which is positioned in cooperation with the center protrusion on the flange surface of the water distribution ring pipe branch pipe;

[0018] And / or, the mounting flange is provided with a mounting through hole;

[0019] And / or, the mounting flange is provided with a second lightening groove.

[0020] In one of the embodiments, the water turbine generator set water distribution ring pipe installation measuring device further comprises a water distribution ring pipe inlet flange, the water distribution ring pipe inlet flange comprises a support seat, a support frame and a distance measuring sensor, the support frame is arranged on the support seat, the measuring center elevation of the support frame is consistent with the center elevation of the water distribution ring pipe inlet flange, and the distance measuring sensor is arranged on the support frame and is configured to measure the perpendicularity and flatness of the water distribution ring pipe inlet flange.

[0021] In one of the embodiments, the water distribution ring pipe inlet flange further comprises a plumb line and a second support, the plumb line is arranged on the support frame, one end of the second support is connected with the support seat, and the other end of the second support is connected with the support frame.

[0022] The second aspect of the present application further proposes an installation measuring method of the water turbine generator set water distribution ring pipe installation measuring device according to any one of the above embodiments, which comprises the following steps:

[0023] Measuring lofting to obtain the water distribution ring pipe inlet flange position, the center position of the water turbine generator set and the water distribution ring pipe branch pipe flange position rough lofting;

[0024] Hanging the water distribution ring pipe section;

[0025] Installing the rotary measuring device to the center position of the water turbine generator set;

[0026] Installing the measuring surface conversion device to the flange surface of the water distribution ring pipe branch pipe;

[0027] Position and adjust the branch pipes of adjacent water distribution ring pipes;

[0028] Complete the welding and assembly of each section of the water distribution ring pipe, and use the rotating measuring equipment and measuring surface conversion equipment to implement real-time monitoring of the deformation of the water distribution ring pipe sections to ensure that the welding deformation of the water distribution ring pipe is within a controllable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 This is a diagram of a measuring device for installing the water distribution ring pipe of a hydro-generator set according to an embodiment.

[0032] Figure 2 Schematic diagram of the installation and measurement principle of a water distribution ring pipe according to an embodiment.

[0033] Figure 3 This is a schematic diagram of the measurement and layout principle of a water distribution ring pipe according to an embodiment.

[0034] Figure 4 Schematic diagram of the structure of a rotation measuring device according to an embodiment.

[0035] Figure 5 for Figure 4 Schematic diagram of the structure from another perspective.

[0036] Figure 6 Schematic diagram of the structure of a measuring surface conversion device according to an embodiment.

[0037] Figure 7 for Figure 6 Schematic diagram of the structure of the measuring flange.

[0038] Figure 8 for Figure 6 Schematic diagram of the structure of the mounting flange.

[0039] Figure 9 This is a front view structural diagram of the water distribution ring pipe inlet flange according to one embodiment.

[0040] Figure 10 for Figure 9 Schematic diagram of the side structure.

[0041] Figure 11 The step flow chart of the installation measurement method of the water ring pipe installation measurement device for the water turbine generator set is shown.

[0042] Explanation of reference signs:

[0043] 100, water turbine generator set water ring pipe installation measurement device; 10, rotation measurement equipment; 11, measurement arm; 12, range finder; 13, base; 14, central shaft; 15, balance arm; 16, counterweight; 17, connecting plate; 18, fixed plate; 19, driving mechanism; 19a, winding drum; 19b, steel wire rope; 20, measurement surface conversion equipment; 21, measurement flange; 211, measurement line; 212, first weight reduction groove; 22, installation flange; 221, positioning disc; 222, installation through hole; 223, second weight reduction groove; 23, hinge; 24, first support; 30, water ring pipe inlet flange; 31, support seat; 32, support frame; 33, range finding sensor; 34, weight line; 35, second support; 40, installation platform; 50, walking auxiliary platform; 100a, water ring pipe; 110a, water ring pipe branch pipe; 120a, water ring pipe section. DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if there are terms "a plurality of", the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0047] In the present application, unless otherwise expressly specified and limited, if there are terms "installation", "connection", "connection", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise expressly specified and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" of the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0049] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0050] Reference Figure 1 A water turbine generator set water distribution ring pipe 100a installation measuring device is shown in an embodiment of the present application, comprising an installation platform 40, a rotating measuring device 10, a measuring surface conversion device 20 and a walking auxiliary platform 50.

[0051] Among them, the installation platform 40 is a ring structure, which is formed by pouring concrete, and is used to carry and place the water distribution ring pipe 100a.

[0052] The walking auxiliary platform 50 is arranged in the inner ring cavity of the mounting platform 40, and is a temporary platform structure for carrying the workers to enable the workers to carry out installation adjustment related work. When the water distribution ring pipe 100a is built, it needs to be removed.

[0053] For example, the walking auxiliary platform 50 can be a frame structure and the like.

[0054] Please continue to refer to Figures 1 to 7 The rotating measurement device 10 is used for being mounted to the center position of the hydroelectric generator set, and the rotating measurement device 10 comprises a measurement arm 11 which is rotatably arranged, and a distance meter 12 which is arranged at the end of the measurement arm 11; the measurement surface conversion device 20 is used for being mounted to the flange surface of the water distribution ring pipe branch pipe 110a, and the measurement surface conversion device 20 comprises a measurement flange 21 which is used for being vertically opposite to the distance meter 12, and a measurement line 211 which is arranged on the measurement flange 21 and is used for cooperating with the distance meter 12.

[0055] In summary, the implementation of the technical scheme of the embodiment will obtain the following beneficial effects: the installation measurement device of the scheme is applied to the use occasion of the installation precision detection of the water distribution ring pipe 100a of the hydroelectric generator set, wherein the water distribution ring pipe 100a has a plurality of water distribution ring pipe branch pipes 110a which are arranged at intervals along the circumferential direction, in use, the rotating measurement device 10 is mounted to the center position of the hydroelectric generator set, and then the measurement surface conversion device 20 is mounted to the flange surface of each water distribution ring pipe branch pipe 110a, since the measurement surface conversion device 20 is provided with the measurement flange 21, the measurement flange 21 can convert the original measurement included angle of 68.4° of the flange surface of the water distribution ring pipe branch pipe 110a into a 90° measurement included angle, so that when the measurement arm 11 drives the distance meter 12 to be opposite to the measurement flange 21, the measurement flange 21 and the distance meter 12 are vertically matched with each other, at this time, the distance meter 12 can automatically and accurately detect the measurement line 211 to obtain a distance value, and the distance value plus the length of the measurement arm 11 can obtain the distance between the center position of the hydroelectric generator set and the flange surface of the water distribution ring pipe branch pipe 110a, compared with the traditional manual measurement mode by means of the piano wire and the tape measure, the installation measurement device of the scheme can automatically complete the distance measurement, and the measurement precision and the measurement efficiency are high, which helps to guarantee the installation construction period and the construction quality of the hydroelectric generator set and the water distribution ring pipe 100a thereof.

[0056] Please continue to refer to Figure 2 and Figure 3In the present application, the water distribution ring pipe 100a has six water distribution ring pipe branch pipes 110a, each of which is used to connect a nozzle, and the six nozzles are arranged at intervals around the outer periphery of the water bucket of the hydroelectric generator set, and are used to jointly spray water flow to the water bucket to drive the runner installed with the water bucket to rotate, so as to convert the kinetic energy of the water flow into electric energy.

[0057] Since the nozzles need to be obliquely aligned with the blades of the water wheel at a certain inclined posture, the flange surface of the water distribution ring pipe branch pipe 110a is also inclined at a certain angle compared with the center of the hydroelectric generator set, generally 68.4°. On this basis, the measurement of the installation position accuracy of the water distribution ring pipe 100a can be converted into the measurement of the position accuracy of the flange surface of each water distribution ring pipe branch pipe 110a.

[0058] Please continue to refer to Figure 4 and Figure 5 In one embodiment, the rotation measurement device 10 further comprises a base 13, a center shaft 14, a balance arm 15, a counterweight 16 and a support, the base 13 is used to be installed to the center position of the hydroelectric generator set, the center shaft 14 is rotatably arranged on the base 13, the balance arm 15 is connected with the measurement arm 11 and is arranged on the center shaft 14, the counterweight 16 is arranged at the end of the balance arm 15 away from the measurement arm 11, the support is arranged at the end of the measurement arm 11 away from the balance arm 15, and the distance meter 12 is arranged on the support.

[0059] When installed, the base 13 is used to bear and fix the center shaft 14, and the center shaft 14 is configured to be rotatable to provide a rotation degree of freedom so that the measurement arm 11 drives the distance meter 12 to measure different water distribution ring pipe branch pipes 110a in the circumferential direction. Specifically, the rotation of the center shaft 14 can be manually driven, or can be automatically driven by a power device, which can be flexibly selected according to actual needs.

[0060] Since the measurement arm 11 is arranged in a cantilevered manner on the center shaft 14, the balance arm 15 and the counterweight 16 are arranged together with the measurement arm 11 to build a force balance relationship, so as to ensure the stability of the overall structure of the rotation measurement device 10 and the smooth and reliable rotation.

[0061] The distance meter 12 is installed on the support and can directly face the measurement surface conversion device 20 installed on the water distribution ring pipe branch pipe 110a without obstruction, so as to facilitate distance measurement. For example, the distance meter 12 adopts a laser distance meter 12, the measurement accuracy is 0.1 mm, and the measurement range is 10 cm, which can ensure very high measurement accuracy.

[0062] Please continue to refer to Figure 4 and Figure 5More specifically, on the basis of the above-mentioned embodiments, the support comprises a connecting plate 17 connected to the end of the measuring arm 11 away from the central shaft 14 and a fixing plate 18 connected to the end of the connecting plate 17 at an angle, and the distance meter 12 is arranged on the fixing plate 18 and used to face the measuring flange 21. The connecting plate 17 is used to connect the measuring arm 11 and the fixing plate 18, and the fixing plate 18 is used to directly load the distance meter 12 so that the distance meter 12 directly faces the measuring flange 21 and detects the measuring line 211 to obtain the distance value. The fixing plate 18 is arranged on the connecting plate 17 at an angle of 30°, so that the distance meter 12 can better obtain the complete profile of the measuring line 211 to improve the measurement accuracy.

[0063] Alternatively, the opposite ends of the horizontally arranged connecting plate 17 are both provided with the fixing plate 18, the fixing plate 18 is arranged in the vertical direction, and the distance meters 12 are arranged at the upper, middle and lower parts of the fixing plate 18, so that the distance meters 12 on the two fixing plates 18 can simultaneously detect the two adjacent water distribution ring pipe branch pipes 110a, greatly improving the measurement efficiency.

[0064] According to actual needs, the connecting mode between the connecting plate 17 and the measuring arm 11 and between the connecting plate 17 and the fixing plate 18 can be any one of screwing, clamping, welding and riveting, which is not limited here.

[0065] Please continue to refer to Figure 4 and Figure 5 Further, in another embodiment, the rotary measuring device 10 further comprises a driving mechanism 19, a winding drum 19a and a steel wire rope 19b. The driving mechanism 19 is arranged at the top end of the central shaft 14, the driving mechanism 19 is in transmission connection with the winding drum 19a, one end of the steel wire rope 19b is fixed to the winding drum 19a, the steel wire rope 19b is wound and arranged on the outer cylinder wall of the winding drum 19a, and the other end of the steel wire rope 19b is in transmission connection with the balance arm 15 and the measuring arm 11.

[0066] In work, the driving mechanism 19 drives the winding drum 19a to rotate, when the winding drum 19a winds and recovers the steel wire rope 19b, the steel wire rope 19b correspondingly lifts and moves the balance arm 15 and the measuring arm 11 to rise, so as to realize the adjustment of the measurement height of the distance meter 12; on the contrary, when the winding drum 19a releases the steel wire rope 19b, the steel wire rope 19b correspondingly releases the balance arm 15 and the measuring arm 11 to move downward, so as to realize the adjustment of the measurement height of the distance meter 12. That is, it can be understood that through the above-mentioned driving structure, the height position of the distance meter 12 can be flexibly adjusted, so as to be suitable for the measurement needs of water distribution ring pipe branch pipes 110a of different sizes.

[0067] Please continue to refer to Figures 6 to 8In one of the embodiments, the measuring face conversion device 20 further comprises a mounting flange 22 and a hinge 23, the mounting flange 22 is used to be mounted to the flange face of the water distribution ring pipe branch 110a, and the edge of the mounting flange 22 is rotationally connected with the edge of the measuring flange 21 through the hinge 23. The flange face is mounted to the flange face of the water distribution ring pipe branch 110a to form a mounting base, and also serves as a force receiving component of the whole measuring face conversion device 20. The hinge 23 provides a rotational freedom to rotationally mount the measuring flange 21 to the mounting flange 22, and the measuring flange 21 and the mounting flange 22 have an opening and closing adjustment angle of 21.6°, which facilitates flexible adjustment of the spatial angle of the measuring flange 21. After the measuring flange 21 and the mounting flange 22 are adjusted to the required angle position, the hinge 23, the measuring flange 21 and the mounting flange 22 can be fixed as a whole by using a welding process to obtain better overall structural performance.

[0068] In the present application, the side face of the measuring flange 21 facing the distance meter 12 is the measuring face, which has a high machining precision. The line connecting the center of the measuring flange 21 and the center of the mounting flange 22 is perpendicular to the measuring flange 21.

[0069] Please continue to refer to Figure 6 Further, on the basis of the above-mentioned embodiments, the measuring face conversion device 20 further comprises a first support 24, the first support 24 is arranged in a spaced manner with the hinge 23, one end of the first support 24 is connected with the mounting flange 22, and the other end of the first support 24 is connected with the measuring flange 21. The first support 24 is used to support and reinforce the mounting flange 22 and the measuring flange 21, so that the measuring face conversion device 20 obtains better structural stability.

[0070] For example, the first support 24 adopts one of a support plate, an angle steel and the like, and after the measuring flange 21 and the mounting flange 22 are adjusted to the angle position, the first support 24 is connected and fixed to the measuring flange 21 and the mounting flange 22 by using any one of welding, clamping, screwing and the like.

[0071] The measuring flange 21 is provided with a first weight-reducing groove 212. The first weight-reducing groove 212 is used to reduce the weight of the measuring flange 21, so as to facilitate the installation and use of the measuring face conversion device 20.

[0072] In the present application, the measuring flange 21 comprises a ring-shaped portion and a cross-shaped portion connected to the ring-shaped portion, a plurality of first weight-reducing grooves 212 are arranged in a spaced manner along the circumferential direction on the ring-shaped portion, and a plurality of first weight-reducing grooves 212 are arranged in a cross direction on the cross-shaped portion, so as to realize the maximum lightweight design of the measuring flange 21.

[0073] Optionally, the measuring line 211 is a cross-shaped line formed on the side face of the measuring flange 21 away from the mounting flange 22. In this way, the measuring accuracy of the distance meter 12 is improved.

[0074] Please continue to refer to Figure 8 In addition, in another embodiment, the middle part of the mounting flange 22 is provided with a positioning disc 221, which is positioned and matched with the center protrusion on the flange surface of the distribution ring pipe branch pipe 110a. The positioning disc 221 is a high-precision machined part, so that the mounting flange 22 can be positioned and matched with the center protrusion, which can improve the accuracy of the measurement results.

[0075] In an embodiment, the mounting flange 22 is provided with a mounting through hole 222. The mounting through hole 222 is used to align with the threaded hole on the flange surface of the distribution ring pipe branch pipe 110a, so that the bolt can be screwed in to complete the locking and fixing of the mounting flange 22. Preferably, the mounting through hole 222 is provided with a plurality of mounting through holes, which are arranged along the ring direction of the mounting flange 22, so that the stability of the mounting flange 22 can be further improved by mounting a plurality of bolts.

[0076] Please continue to refer to Figure 8 Further, the mounting flange 22 is provided with a second weight-reducing groove 223. Thus, the mounting flange 22 can be designed to reduce weight, which can improve the lightweight level of the measuring surface conversion device 20 and make it more convenient and labor-saving.

[0077] Please continue to refer to Figure 2 , Figure 3 So Figure 9 And Figure 10 In addition, on the basis of any of the above embodiments, the water turbine generator set distribution ring pipe 100a mounting measuring device further comprises a distribution ring pipe inlet flange 30, which comprises a support seat 31, a support frame 32 and a distance measuring sensor 33. The support frame 32 is arranged on the support seat 31, and the measurement center elevation of the support frame 32 is consistent with the center elevation of the distribution ring pipe inlet flange 30. The distance measuring sensor 33 is arranged on the support frame 32 and is configured to measure the perpendicularity and flatness of the distribution ring pipe inlet flange 30.

[0078] The support seat 31 is used as a basic component to load and fix the support frame 32. When the support frame 32 is installed, it is placed on the center intersection line of the distribution ring pipe inlet flange 30 to obtain a high-precision installation reference.

[0079] Further, the distribution ring pipe inlet flange 30 further comprises a plumb line 34 and a second support 35. The plumb line 34 is arranged on the support frame 32, and one end of the second support 35 is connected with the support seat 31, and the other end of the second support 35 is connected with the support frame 32. The plumb line 34 is hung on the support frame 32 to measure the perpendicularity of the support frame 32, so as to avoid the installation of the support frame 32 being skewed and affecting the accuracy of subsequent measurement. The second support 35 is a diagonal support, which plays a role in diagonally supporting and reinforcing the support frame 32.

[0080] Please continue to refer to Figure 11 and in combination with Figure 2 and Figure 3 In addition, the application also proposes an installation and measurement method of the installation measurement device of the water turbine generator set water distribution ring pipe 100a, including the following steps:

[0081] S10: measuring and lofting to obtain the position of the water distribution ring pipe inlet flange 30 and the center position of the water turbine generator set, and the rough lofting of the flange position of the water distribution ring pipe branch pipe 110a.

[0082] S20: hoisting the water distribution ring pipe section 120a.

[0083] S30: installing the rotation measurement device 10 at the center position of the water turbine generator set.

[0084] S40: installing the measurement surface conversion device 20 on the flange surface of the water distribution ring pipe branch pipe 110a.

[0085] S50: positioning and adjusting the adjacent water distribution ring pipe branch pipes 110a.

[0086] S60: completing the welding assembly of each water distribution ring pipe section 120a, and implementing real-time monitoring on the deformation of the water distribution ring pipe section 120a by means of the rotation measurement device 10 and the measurement surface conversion device 20, to ensure that the welding deformation of the water distribution ring pipe 100a is within the controllable range.

[0087] More specifically, in step S10, by measuring and lofting, the horizontal axis of one water distribution ring pipe inlet flange 30 and the vertical axis of one water distribution ring pipe inlet flange 30 can be accurately measured. By measuring and lofting, the X-axis and Y-axis of the center position of the water turbine generator set can be accurately measured. By measuring and lofting, the horizontal axis and vertical axis of the flange surface of the six water distribution ring pipe branch pipes 110a can be marked, and the error is controlled within 5cm.

[0088] In the application, the water distribution ring pipe 100a has a certain length, and in order to facilitate assembly and disassembly, the water distribution ring pipe 100a is usually composed of multiple water distribution ring pipe sections 120a.

[0089] In step S20, the first water distribution ring pipe section 120a is hoisted: the first water distribution ring pipe section 120a is hoisted to the inlet of the water distribution ring pipe 100a, and the flange of the first water distribution ring pipe section 120a must coincide with the horizontal axis and the vertical axis of the water distribution ring pipe inlet flange 30. Then, the second water distribution ring pipe section 110a is hoisted: according to the layout of the water distribution ring pipe 100a, the remaining six water distribution ring pipe sections 110a are hoisted to the flange position of the water distribution ring pipe 100a in turn, and the accuracy is controlled within 1 cm. Finally, the remaining water distribution ring pipe sections 120a are hoisted: according to the layout of the water distribution ring pipe 100a, the remaining water distribution ring pipe sections 120a are hoisted to the corresponding layout position.

[0090] In step S30, after the rotation measuring device 10 is installed, the base 13 must be at the center position of the hydroelectric generator set (the center of the water distribution ring pipe 100a), and the error must not exceed 0.5 mm. The winding drum 19a is driven by the driving mechanism 19, so that the steel wire rope 19b drives the balance arm 15 and the measuring arm 11 to move up and down together, the center elevation of the range finder 12 of the fixed plate 18 is adjusted to be consistent with the center elevation of the flange face of the water distribution ring pipe section 110a, and the error must not exceed 0.5 mm. The measuring arm 11 rotates under the bearing, so that the steel wire rope 19b, the driving mechanism 19, the winding drum 19a and other mechanisms rotate together. According to the two-force balance principle, the counterweight 16 is appropriately increased or decreased to ensure that the rotation swing does not exceed 0.05 mm.

[0091] Design key data calculation:

[0092] R1: the theoretical distance from the center of the water distribution ring pipe 100a to the center of the flange of the water distribution ring pipe section 110a, which is a known value;

[0093] D: is the diameter of the flange of the water distribution ring pipe section 110a, which is a known value;

[0094] L1: is the length of the measuring arm 11;

[0095] L2: is the theoretical length of the perpendicular line of the connecting line of the flanges of two adjacent water distribution ring pipe sections 110a from the center of the hydroelectric generator set, which is a known value;

[0096] S1: is the theoretical distance of the connecting line of the flanges of two adjacent water distribution ring pipe sections 110a, which is a known value;

[0097] S2: is the length of the connecting plate 17412;

[0098] R2 = R1-1 / 2Dtan(21.6°)-range finder 12 body length;

[0099] L1 = R2*cos(30°);

[0100] S2 = (L1*S1) / L2.

[0101] In step S50, the support frame 32 is placed at the water distribution ring pipe inlet flange 30, the longitudinal axis of the support frame 32 coincides with the transverse axis of the water distribution ring pipe inlet flange 30, the transverse axis of the support frame 32 is parallel to the transverse axis of the water distribution ring pipe inlet flange 30, and the parallel distance is not more than 5 cm. The overall verticality of the support frame 32 is adjusted using the heavy hammer line 34, and the elevation, verticality and flatness of the water distribution ring pipe inlet flange 30 are measured by the distance measuring sensor 33. The water distribution ring pipe 100a manufacturer will design the elevation and verticality adjustment jack of the water distribution ring pipe 100a, and the device body jack is used for adjustment, so that the verticality and center elevation error are not more than 0.5 mm, and the flatness is adjusted left and right and front and back externally, so that the flatness is not more than 0.5 mm.

[0102] If the first section of the water distribution ring pipe section 120a and the water distribution ring pipe branch pipe 110a are one section, the flange of the water distribution ring pipe branch pipe 110a should be accurately positioned and adjusted. Since the water inlet of the water distribution ring pipe 100a has been determined, the position of the flange of the water distribution ring pipe branch pipe 110a is also basically determined. The specific steps are as follows: 1) rotate the rotary measurement device 10 clockwise, and rotate the left fixed plate 18 of the rotary measurement device 10 to the center of the flange of the water distribution ring pipe branch pipe 110a. 2) Adjust the verticality of the flange of the water distribution ring pipe branch pipe 110a: use the middle and lower three distance meters 12 in the vertical direction of the left fixed plate 18 to measure the verticality data, and use the jack of the water distribution ring pipe 100a to adjust the verticality and center elevation. 3) Adjust the flatness of the flange of the water distribution ring pipe branch pipe 110a: adjust the flange of the water distribution ring pipe branch pipe 110a so that the middle and lower three distance meters 12 in the vertical direction of the left fixed plate 18 coincide with the vertical measurement line 211, and use the left, middle and right three distance meters 12 in the vertical direction of the left fixed plate 18 to measure the flatness. The difference between the laser tracker data and the flatness is adjusted left and right and front and back externally by applying force to the pier of the water distribution ring pipe branch pipe 110a with the jack, so that the flatness is within 0.5 mm. 4) Data checking: check the verticality, levelness and elevation of the flange of the water distribution ring pipe 100a and the flange of the water distribution ring pipe branch pipe 110a. If it does not meet the requirements, fine adjustment should be made according to the above steps.

[0103] If the first section of the water distribution ring pipe section 120a and the flange of the water distribution ring pipe branch pipe 110a are not the same section, and there is a straight pipe section of the water distribution ring pipe 100a in between, the water distribution ring pipe inlet flange 30 should be adjusted first, and after meeting the requirements, the straight pipe section of the water distribution ring pipe 100a is adjusted to be parallel to the water inlet flange of the water distribution ring pipe section 120a, the section of the water distribution ring pipe branch pipe 110a is parallel to the straight pipe section of the water distribution ring pipe 100a, and the welding interface distance and the tooth error are preferably 2 mm, and the maximum is not more than 4 mm.

[0104] In step S50, after the positioning of the first section of the water distribution ring pipe branch pipe 110a is completed and the flange data of the water distribution ring pipe branch pipe 110a is adjusted to be qualified, the next adjacent section of the water distribution ring pipe branch pipe 110a is installed.

[0105] If there is no straight pipe section of the water distribution ring pipe 100a between the first section of the water distribution ring pipe branch pipe and the adjacent second section of the water distribution ring pipe branch pipe: there is no need to rotate the rotating measuring device 10, and ensure that the three middle and lower distance meters 12 in the vertical direction of the left fixed plate 18 of the rotating measuring device 10 always coincide with the flange measurement line 211 of the first section of the water distribution ring pipe branch pipe, and ensure that the data does not change at all times. At this time, use the left fixed plate 18 as a reference and use the right side of the fixed plate 18 to adjust the flange of the next section of the water distribution ring pipe branch pipe 110a.

[0106] If there is a straight pipe section of the water distribution ring pipe 100a between the first section of the water distribution ring pipe branch pipe and the adjacent second section of the water distribution ring pipe branch pipe, the straight pipe section of the water distribution ring pipe 100a should be placed between the two pipe openings after the flange data of the next section of the water distribution ring pipe branch pipe 110a is adjusted to be qualified, and the spacing should be adjusted to be even and not exceed 4mm at most.

[0107] In step S60, after all the pipe sections of the water distribution ring pipe 100a are assembled, they are welded together into a whole. During the welding process, the rotary measuring device 10 is constantly rotated, and the distance meter 12 on the left and right sides of the fixed plate 18 is used to constantly check the flange deformation of the water distribution ring pipe 100a. The feedback is given to the welding personnel in real time, and the welding process is adjusted in time to ensure that the welding deformation of the water distribution ring pipe 100a is within a controllable range.

[0108] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water turbine generator set water distribution ring pipe installation measuring device, characterized by, The application relates to a water turbine generator set water distribution ring pipe installation measuring device. The device comprises a rotation measuring device and a measuring surface conversion device. The rotation measuring device is arranged at the center of the water turbine generator set and comprises a rotatable measuring arm and a distance meter arranged at the end of the measuring arm. The measuring surface conversion device is arranged at the flange surface of the water distribution ring pipe branch pipe and comprises a measuring flange which is arranged opposite the distance meter and is provided with a measuring line.

2. The water turbine generator set water distribution ring pipe installation measuring device according to claim 1, characterized by, The rotation measuring device further comprises a base, a central shaft, a balance arm, a counterweight and a support.

3. The water turbine generator set water distribution ring pipe installation measuring device according to claim 2, characterized by, The base is arranged at the center of the water turbine generator set.

4. The water turbine generator set water distribution ring pipe installation measuring device according to claim 2, characterized by, The central shaft is rotatably arranged on the base.

5. The water turbine generator set water distribution ring pipe installation measuring device according to claim 1, characterized by, The balance arm is connected with the measuring arm and is arranged on the central shaft.

6. The water turbine generator set water distribution ring pipe installation measuring device according to claim 5, characterized by, The counterweight is arranged at the end of the balance arm away from the measuring arm. The support is arranged at the end of the measuring arm away from the balance arm. The distance meter is arranged on the support.

7. The water turbine generator set water distribution ring pipe installation measuring device according to claim 5, characterized by, The support comprises a connecting plate and a fixing plate. The connecting plate is connected with the end of the measuring arm away from the central shaft. The fixing plate is connected with the end of the connecting plate at an angle.

8. The water turbine generator set water distribution ring pipe installation measuring device according to claim 1, characterized by, The distance meter is arranged on the fixing plate and faces the measuring surface conversion device. The rotation measuring device further comprises a driving mechanism, a winding drum and a steel wire rope. The driving mechanism is arranged at the top end of the central shaft. The driving mechanism is in transmission connection with the winding drum. One end of the steel wire rope is fixed to the winding drum. The steel wire rope is wound on the outer cylinder wall of the winding drum. The other end of the steel wire rope is in transmission connection with the balance arm and the measuring arm. The measuring surface conversion device further comprises a mounting flange and a hinge. The mounting flange is arranged at the flange surface of the water distribution ring pipe branch pipe. The edge of the mounting flange is rotatably connected with the edge of the measuring flange through the hinge. The measuring surface conversion device further comprises a first support. One end of the first support is connected with the mounting flange. The other end of the first support is connected with the measuring flange. The measuring flange is provided with a first weight-reducing groove. The measuring line is a cross-shaped line formed on the side of the measuring flange away from the mounting flange. The middle part of the mounting flange is provided with a positioning disc. The positioning disc is in positioning cooperation with the center protrusion on the flange surface of the water distribution ring pipe branch pipe. The mounting flange is provided with a mounting through hole. The mounting flange is provided with a second weight-reducing groove. The water turbine generator set water distribution ring pipe installation measuring device further comprises a water distribution ring pipe inlet flange. The water distribution ring pipe inlet flange comprises a support base, a support frame and a distance sensor. The support frame is arranged on the support base. The measuring center elevation of the support frame is consistent with the center elevation of the water distribution ring pipe inlet flange. The distance sensor is arranged on the support frame and is configured to measure the perpendicularity and flatness of the water distribution ring pipe inlet flange.

9. The water turbine generator set water distribution ring pipe installation measuring device according to claim 8, characterized by, The water distribution ring pipe inlet flange further comprises a heavy hammer line and a second support, the heavy hammer line is arranged on the support frame, one end of the second support is connected with the support seat, and the other end of the second support is connected with the support frame.

10. A method of installing a measuring device for a water ring pipe of a hydroelectric generator set according to any one of claims 1 to 9, characterized by, The method comprises the following steps: Measuring and lofting are performed to obtain the position of the water distribution ring pipe inlet flange and the center position of the hydroelectric generating set, and the position of the water distribution ring pipe branch flange is roughly lofted; The water distribution ring pipe section is hoisted; The rotary measuring equipment is installed at the center position of the hydroelectric generating set; The measuring surface conversion equipment is installed on the flange surface of the water distribution ring pipe branch; Positioning adjustment is performed on adjacent water distribution ring pipe branches; The welding assembly of the water distribution ring pipe section is completed, the deformation of the water distribution ring pipe section is monitored in real time by means of the rotary measuring equipment and the measuring surface conversion equipment, and it is ensured that the welding deformation of the water distribution ring pipe is within a controllable range.

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