Device for measuring overall vertical deformation of nuclear island containment

Abstract

The utility model discloses an integral vertical deformation measuring device for a nuclear island containment vessel, which comprises a fixed base, measuring equipment, a measuring line clamp, a measuring needle, a plumb line, a heavy hammer and a damping barrel, and is characterized in that the measuring equipment is mounted on the fixed base; the plumb line is vertically arranged, the top end of the plumb line is fixed at the measuring point, and the bottom end of the plumb line is connected with the heavy hammer which is used for keeping the plumb line in a vertical state; damping liquid is arranged in the damping barrel, and the heavy hammer is arranged in the damping liquid. The technical effects are that the measurement principle is simple, displacement does not need to be transmitted, and the vertical deformation of the shell can be directly measured; the measuring equipment adopts a photoelectric principle, outputs digital signals and has no null drift; meanwhile, all the assemblies are tightly connected, no movable element exists, measurement errors increased by displacement transmission are eliminated, the measurement precision, sensitivity and stability are better than those of a steel ruler, a vernier caliper and a displacement sensor, and the measurement system is more stable in performance, suitable for the complex environment of a construction site and more suitable for long-term measurement of vertical deformation of the nuclear island containment vessel.

Description

Technical Field

[0001] The utility model relates to the technical field of a nuclear island containment overall vertical deformation measuring device, in particular to a nuclear island containment overall vertical deformation measuring device. Background Art

[0002] The existing technology for measuring the overall vertical deformation of the nuclear island containment is not yet mature. The existing technology can be mainly divided into two categories:

[0003] The first is the plumb line hanging method using a steel ruler, including a steel ruler, a clamp, a plumb line, a weight, etc. The steel ruler is fixed vertically on the hanging line, the two are parallel, and a weight is hung below. The vertical displacement is judged by the change of the steel ruler scale. The measurement accuracy is low and it is impossible to establish an automated measurement and acquisition system; the second is the mechanical displacement sensor measurement method using a pulley bracket, including a mounting base, a pulley, a clamp, a plumb line, a weight, etc. The mounting base is used to fix the displacement sensor, the pulley is used to change the direction of the plumb line, and the plumb line and the displacement sensor measuring rod are fixed by a clamp. In this technology, the displacement of the containment shell needs to be transmitted to the displacement sensor through the pulley and the plumb line. It has high requirements for the rotation of the pulley itself and the friction between the pulley and the plumb line, and it is easy to have measurement jams and excessive measurement errors. The construction site is heavily dusty, which easily causes dust to accumulate between the measuring head of the mechanical displacement sensor and the rod casing, resulting in excessive tension and compression friction of the measuring rod and unable to work normally. At the same time, the focus and difficulty of this technology is to maintain the parallelism and coordinated deformation of the line and the measuring rod. The distance between the measuring line and the instrument must be strictly controlled. The eccentricity problem may make it impossible to measure or even damage the instrument. Therefore, the instrument installation requirements are very high, and it needs special personnel to inspect and maintain it frequently, which is inconvenient to use.

[0004] At present, the vertical deformation measurement of the nuclear island containment uses the above two methods. Based on the above reasons, a better technology is needed to solve the above problems, so as to measure the overall vertical deformation of the containment more accurately, intelligently, conveniently and stably. Utility Model Content

[0005] To this end, the utility model provides a device for measuring the overall vertical deformation of a nuclear island containment to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] According to a first aspect of the utility model, a device for measuring the overall vertical deformation of a nuclear island containment shell comprises a fixed base, a measuring device, a measuring line fixture, a measuring needle, a plumb line, a weight and a damping barrel, wherein the measuring device is mounted on the fixed base;

[0008] The plumb line is vertically arranged, with the top end of the plumb line fixed at the measurement point and the bottom end of the plumb line connected to the plumb bob, where the plumb bob is used to keep the plumb line in a vertical state;

[0009] The damping barrel is provided with damping liquid, and the plumb bob is arranged in the damping liquid;

[0010] The wire measuring clamp is installed on the plumb line. One end of the measuring needle is connected to the wire measuring clamp, and the other end of the measuring needle extends into the measuring hole of the measuring device. The measuring needle is perpendicular to the plumb line.

[0011] Further, the measuring device includes a parallel light illumination system, a photoelectric coupling device, a power supply, and a frame. The parallel light illumination system, the photoelectric coupling device, and the power supply are all arranged in the frame, and both the parallel light illumination system and the photoelectric coupling device are connected to the power supply;

[0012] The measuring principle of the measuring device is that when a beam of parallel light is perpendicularly incident on the photoelectric coupling device, the measuring needle generates a projection on the photosensitive surface of the photoelectric coupling device, and the photosensitive elements of the photoelectric coupling device convert the light intensity into electric charge quantity for storage; then, the photoelectric coupling device driver generates corresponding logic timing to shift out the charge information. After the shifted signal is shaped and processed, the accurate coordinates of the projection are calculated, and based on this, the displacement value of the measuring point is obtained.

[0013] Further, the wire measuring clamp is detachably installed on the plumb line. The wire measuring clamp includes a front clamping plate and a rear clamping plate, and the front clamping plate and the rear clamping plate are detachably connected to each other. One end of the measuring needle is detachably connected to the front clamping plate.

[0014] Further, a first clamping groove is provided on the surface of the front clamping plate facing the rear clamping plate, and a second clamping groove is provided on the surface of the rear clamping plate facing the front clamping plate. The first clamping groove and the second clamping groove enclose a through hole for clamping and fixing the plumb line.

[0015] Further, a threaded hole is provided on the surface of the front clamping plate facing away from the rear clamping plate, and one end of the measuring needle is detachably connected to the threaded hole.

[0016] Further, the measuring needle includes an extension rod and a measuring rod. One end of the extension rod is detachably connected to one end of the measuring rod, and the other end of the extension rod is detachably connected to the wire measuring clamp.

[0017] Further, the fixed base includes a mounting base plate, a connecting arm, and an equipment support plate, and the mounting base plate is vertically arranged;

[0018] The number of the connecting arms is two, and the two connecting arms are arranged in parallel. One end of each connecting arm is connected to the mounting base plate, and the connecting arm is perpendicular to the mounting base plate.

[0019] The equipment support plate is mounted on the connecting arm, and the measuring device is mounted on the equipment support plate.

[0020] Further, the equipment support plate includes a horizontal plate and a vertical plate. One vertical plate is provided on each side of the horizontal plate. The vertical plates are arranged in one-to-one correspondence with the connecting arms. A plurality of first connection holes are provided on the horizontal plate, and second connection holes are provided on the vertical plates.

[0021] A first long hole is provided on the connecting arm along its length direction. After a first bolt sequentially passes through the first long hole and the second connection hole, the equipment support plate is mounted on the connecting arm.

[0022] A second bolt passes through the first connection hole to mount the measuring device on the equipment support plate, and an adjusting nut is provided on the second bolt.

[0023] Further, the second connection hole is a vertically arranged long hole.

[0024] Further, the fixed base further includes an adjusting base plate. One adjusting base plate is provided at one end of each connecting arm. At least two horizontally arranged second long holes are provided on the adjusting base plate. After a bolt passes through the second long hole, the adjusting base plate is fixed on the mounting base plate.

[0025] The utility model has the following advantages: the measurement principle is simple, there is no need to transfer displacement, and the vertical deformation of the shell can be directly measured; the measuring device adopts the optoelectronic principle, and the output is a digital signal without zero drift; at the same time, each component is tightly connected and there are no movable elements, and the integrity is good, eliminating the measurement error caused by displacement transfer. The measurement accuracy, sensitivity and stability are better than those of a steel ruler, a vernier caliper and a displacement sensor. The performance of the measurement system is more stable and suitable for the complex environment of the construction site, and is more suitable for the long-term measurement of the vertical deformation of the nuclear island containment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained according to the provided drawings without creative efforts.

[0027] The structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0028] Figure 1 It is a first perspective view of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0029] Figure 2 It is a second perspective view of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0030] Figure 3 It is a schematic structural view of a fixed base of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0031] Figure 4 It is a schematic structural view of an equipment support plate of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0032] Figure 5 It is a schematic structural view of a measuring wire clamp of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0033] Figure 6 It is a schematic structural view of a measuring needle of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0034] Figure 7 It is a connection schematic diagram of a plumb line and a plumb bob of a device for measuring the overall vertical deformation of a nuclear island containment vessel provided in some embodiments of the present utility model.

[0035] In the figure: 1. Installation base plate, 2. Connecting arm, 3. Equipment support plate, 4. Measuring equipment, 5. Measuring needle, 6. Measuring wire clamp, 7. Plumb line, 8. Damping barrel, 9. First long slot, 10. First bolt, 11. Second bolt, 12. Adjusting base plate, 13. Plumb bob, 14. Second long slot, 15. Horizontal plate, 16. Vertical plate, 17. First connection hole, 18. Second connection hole, 19. Front clamping plate, 20. Rear clamping plate, 21. Threaded hole, 22. Through hole, 23. Extension rod, 24. Measuring rod. Detailed implementation manners

[0036] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0037] Embodiment 1

[0038] As Figures 1 to 7 shown, a device for measuring the overall vertical deformation of a nuclear island containment vessel in the first aspect embodiment of the present utility model includes a fixed base, a measuring device 4, a wire clamp 6, a measuring needle 5, a plumb line 7, a weight 13, and a damping barrel 8. The measuring device 4 is installed on the fixed base;

[0039] The plumb line 7 is vertically arranged. The plumb line 7 is preferably made of invar wire. The top end of the plumb line 7 is fixed at the measuring point, and the bottom end of the plumb line 7 is connected to the weight 13. The weight 13 is used to keep the plumb line 7 in a vertical state;

[0040] The damping barrel 8 is provided with damping liquid. The weight 13 is arranged in the damping liquid. The damping liquid is used to consume the kinetic energy of the plumb line 7, stabilize the weight 13, and keep it in a static state to prevent the plumb line 7 from shaking during use;

[0041] The plumb line 7, the weight 13, and the damping barrel 8 are essential components of the plumb line measurement system and are key components of the device for measuring the overall vertical deformation of the nuclear island containment vessel. The plumb line 7 is made of invar wire with a low coefficient of thermal expansion. The advantage of this setting is that the invar wire is less deformed by temperature. The weight of the weight 13 is not less than 45 kg. The advantage of this setting is that the weight 13 can straighten the plumb line 7 to the greatest extent. The damping barrel 8 is filled with damping liquid. The advantages of this setting are: one is to prevent the weight 13 from rusting, and the other is to consume the swinging energy of the plumb line 7 to make the measurement of the plumb line 7 more stable.

[0042] The wire clamp 6 is installed on the plumb line 7. One end of the measuring needle 5 is connected to the wire clamp 6, and the other end of the measuring needle 5 extends into the measuring hole (photoelectric induction area) of the measuring device. The measuring needle 5 is perpendicular to the plumb line 7.

[0043] In this embodiment, it should be noted that the measuring device 4 includes a parallel light illumination system, a photoelectric coupling device, a power supply, and a frame. The parallel light illumination system, the photoelectric coupling device, and the power supply are all arranged in the frame, and the parallel light illumination system and the photoelectric coupling device are both connected to the power supply;

[0044] The measuring principle of the measuring device 4 is that when a beam of parallel light shines vertically on the photoelectric coupling device (CDD), the measuring needle 5 generates a projection on the photosensitive surface of the photoelectric coupling device, and the photosensitive element of the photoelectric coupling device converts the light intensity into charge storage; then, the photoelectric coupling device driver generates the corresponding logic timing to move the charge information out, and after the moving signal is shaped, the accurate coordinates of the projection are calculated, and the displacement value of the measuring point is obtained based on this, so as to determine the vertical deformation of the shell. The output of the photoelectric coupling device is a digital signal, without the problem of "zero drift", and no inductive object needs to be attached to the measured line body, which does not affect the free change of the vertical line, and is a true non-contact measurement. Furthermore, a baffle is set on the frame, and the baffle is used to limit the horizontal swing of the measuring needle 5.

[0045] Measuring device 4 is a key component of the overall vertical deformation measuring device of the nuclear island containment. The present application adopts a photoelectric measuring device to replace the previous steel ruler, vernier caliper or mechanical displacement sensor. The advantages of this setting are: first, the measurement accuracy and sensitivity are higher; second, the device has no movable components, good integrity, good moisture and dust resistance, and long-term measurement is more stable.

[0046] The technical effects achieved by this embodiment are as follows: the measuring principle is simple, and the vertical deformation of the shell can be directly measured without the need to transfer displacement; the measuring device 4 adopts a photoelectric principle, and the output is a digital signal without zero drift; at the same time, the components are tightly connected, there are no movable components, and the integrity is good, which eliminates the measurement error increased by displacement transmission, and the measurement accuracy, sensitivity and stability are better than those of a steel ruler, a vernier caliper and a displacement sensor. The performance of the measuring system is more stable, suitable for complex environments on construction sites, and more suitable for long-term measurement of the vertical deformation of the nuclear island containment.

[0047] Example 2

[0048] like Figures 1 to 7 As shown, this embodiment provides another nuclear island containment overall vertical deformation measuring device, the structure of which includes all the contents of embodiment 1, and only the different parts are described below.

[0049] In this embodiment, the measuring line clamp 6 is detachably installed on the plumb line 7. The measuring line clamp 6 includes a front clamp 19 and a rear clamp 20. The front clamp 19 and the rear clamp 20 are detachably connected. Specifically, the front clamp 19 and the rear clamp 20 are connected by bolts to facilitate disassembly and installation. One end of the measuring needle 5 is detachably connected to the front clamp 19.

[0050] In this embodiment, it should be noted that a first clamping groove is provided on a side of the front clamping plate 19 facing the rear clamping plate 20, and a second clamping groove is provided on a side of the rear clamping plate 20 facing the front clamping plate 19. The first clamping groove and the second clamping groove together form a through hole 22. The aperture of the through hole 22 is smaller than the diameter of the plumb line 7. The through hole 22 is used to clamp and fix the plumb line 7.

[0051] Further, a threaded hole 21 is provided on the side of the front clamping plate 19 facing away from the rear clamping plate 20. One end of the measuring needle 5 is threadedly connected to the threaded hole 21. The threaded connection can effectively fasten the measuring needle 5. On the one hand, it can avoid the inclination or rotation phenomenon caused by its own weight. On the other hand, it can repair the problem that the measuring needle 5 cannot be reset due to accidental touch by on-site construction personnel.

[0052] The measuring line fixture 6 belongs to the key component of the overall vertical deformation measuring device of the nuclear island containment. This device is applied in the plumb line measuring system. One of the cores of the plumb line measurement is the plumb line. For the vertical deformation plumb line measurement, it is necessary to convert the vertical displacement of the plumb line body into the monitoring area of the plumb line coordinate instrument. Therefore, a line body (i.e., the measuring needle 5) needs to be orthogonally extended on the plumb line to enter the monitoring area of the plumb line coordinate instrument. The measuring line fixture 6 is divided into a front clamping plate 19 and a rear clamping plate 20. There is a vertically penetrating hole on the fitting surface of the front clamping plate 19 and the rear clamping plate 20, and the diameter of the penetrating hole is smaller than the diameter of the plumb line. A threaded hole is set normally at the center of the front surface of the front clamping plate 19. The advantages of such a setting are as follows: First, it can ensure the accuracy of the measurement direction. Second, it can ensure the accuracy of the position of the measuring line (including the plumb line 7 and the measuring needle 5). Third, it can solve the problem that the measuring needle cannot be reset due to accidental touch by personnel.

[0053] The technical effect achieved by this embodiment is that the measuring line fixture 6 includes a front clamping plate 19 and a rear clamping plate 20, and the overall structure is simple, which is convenient for assembly and disassembly and can quickly install the measuring needle 5.

[0054] Embodiment 3

[0055] As Figures 1 to 7 shown, another overall vertical deformation measuring device of the nuclear island containment provided by this embodiment has a structure including all the contents of Embodiment 1. Only the different parts will be described below.

[0056] In this embodiment, the measuring needle 5 includes an extension rod 23 and a measuring rod 24. One end of the extension rod 23 is detachably connected to one end of the measuring rod 24, and the other end of the extension rod 23 is detachably connected to the measuring line fixture 6.

[0057] In this embodiment, it should be noted that the extension rod 23 is threadedly connected to the measuring line fixture 6. The extension rod 23 is coaxial with the measuring rod 24. The connecting ends of the extension rod 23 and the measuring rod 24 are both provided with matching threads. The extension rod 23 and the measuring rod 24 are threadedly connected between them. The threaded connection can effectively avoid errors caused by slip or rotation between components. The total length of the measuring needle 5 is between 150 mm and 200 mm, and the outer diameter of the measuring rod 24 needs to be controlled within 2 mm to meet the measurement accuracy requirements of the equipment. Conventional rod-shaped stainless steel, fiberglass, white steel and other materials have low stiffness and generally have the situation of slight bending or inability to fully recover after being bent. Considering comprehensively, the outer diameter of the extension rod 23 is increased to 5 mm, and the material of the measuring rod 24 is selected from tungsten steel or carbon fiber.

[0058] The feeler pin 5 belongs to a key component of the overall vertical deformation measuring device for the nuclear island containment. The distance between the plumb line 7 and the plumb coordinate instrument is relatively large. When monitoring, it is necessary to use a measuring element (feeler pin 5) to extend into the sensing area of the coordinate instrument. Therefore, the feeler pin 5 is required to be longer. At the same time, the outer diameter of the measuring section of the feeler pin 5 needs to be controlled within 2 mm to meet the requirements of monitoring accuracy and sensitivity. The feeler pin 5 adopts a segmented structure. The root part uses an extension rod 23, with an appropriate length and a larger outer diameter. The measuring area adopts a non-variable-diameter needle shape, and the material is selected from tungsten steel or carbon fiber. The advantages of such a setting are as follows: First, by ensuring the overall stiffness and straightness of the feeler pin 5, the measurement accuracy and sensitivity are improved; second, the measurement error caused by the variable diameter of the feeler pin 5 is avoided; third, it is easy to manufacture, has a low cost, and is convenient for popularization.

[0059] Embodiment 4

[0060] As Figures 1 to 7 shown, another overall vertical deformation measuring device for the nuclear island containment provided in this embodiment has a structure including all the contents of Embodiment 1. Only the different parts will be described below.

[0061] In this embodiment, the fixed base includes a mounting base plate 1, a connecting arm 2, and an equipment support plate 3. The mounting base plate 1 is arranged vertically, and a plurality of connecting holes are provided on the mounting base plate 1;

[0062] The number of connecting arms 2 is two. The two connecting arms 2 are arranged parallel to each other. One end of each connecting arm 2 is connected to the mounting base plate 1, and the connecting arm 2 is perpendicular to the mounting base plate 1;

[0063] The equipment support plate 3 is installed on the connecting arm 2, and the measuring equipment 4 is installed on the equipment support plate 3.

[0064] In this embodiment, it should be noted that the equipment support plate 3 includes a horizontal plate 15 and a vertical plate 16. One vertical plate 16 is provided on each side of the horizontal plate 15. The vertical plates 16 are arranged in one-to-one correspondence with the connecting arms 2. A plurality of first connecting holes 17 are provided on the horizontal plate 15, and second connecting holes 18 are provided on the vertical plates 16. The second connecting holes 18 are vertically arranged long holes; specifically, the equipment support plate 3 is formed by bending a steel plate;

[0065] The connecting arm 2 is provided with a first long hole 9 along its length direction. After the first bolt 10 sequentially passes through the first long hole 9 and the second connecting hole 18, the equipment support plate 3 is installed on the connecting arm 2; the first long hole 9 and the second connecting hole 18 cooperate with the first bolt 10 to adjust the position of the equipment support plate 3 in the front-back and up-down directions;

[0066] The second bolt 11 passes through the first connecting hole 17 and then installs the measuring equipment 4 on the equipment support plate 3. An adjusting nut is provided on the second bolt 11, and the levelness of the measuring equipment 4 can be adjusted by the adjusting nut.

[0067] Furthermore, the fixed base further includes an adjusting base plate 12. One end of each connecting arm 2 is provided with an adjusting base plate 12. Specifically, the connecting arm 2 is made of angle steel and welded to the adjusting base plate 12. At least two horizontally arranged second long holes 14 are provided on the adjusting base plate 12. The second long holes 14 are perpendicular to the connecting arm 2. After the bolts pass through the second long holes 14, the adjusting base plate 12 is fixed on the mounting base plate 1. The second long holes 14 cooperate with the bolts to adjust the position of the adjusting base plate 12 left and right.

[0068] The mounting base plate 1, the connecting arm 2, the equipment support plate 3, the adjusting base plate 12 and the bolts are key components of the overall vertical deformation measuring device of the nuclear island containment. As the main body of the equipment installation device, the shape and function of the present application are standardized. The components are bolted together, which is convenient for disassembly and assembly; by setting long holes, all-round adjustment of the monitoring equipment in the front, back, left, right, up and down directions can be realized, and the installation requirements of the engineering monitoring site can be met to the greatest extent; when used in cooperation with adjusting nuts, the equipment can be fixed and leveled at the same time, saving unnecessary components. The selected material specifications of this basic component are unified, and it has the characteristics of simple structure, convenient use, multiple applicable scenarios and low cost, which is convenient for popularization and use.

[0069] Although the present utility model has been described in detail above with general descriptions and specific embodiments, on the basis of the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

[0070] Terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope of implementation of the present utility model.

Claims

1. An overall vertical deformation measuring device for a nuclear island containment vessel, characterized in that It comprises a fixed base, a measuring device (4), a measuring line fixture (6), a measuring needle (5), a plumb line (7), a weight (13) and a damping barrel (8), wherein the measuring device (4) is mounted on the fixed base; The plumb line (7) is arranged vertically, the top end of the plumb line (7) is fixed at the measuring point, the bottom end of the plumb line (7) is connected to the weight (13), and the weight (13) is used to keep the plumb line (7) in a vertical state; The damping barrel (8) is provided with a damping fluid, and the weight (13) is arranged in the damping fluid; The measuring line fixture (6) is installed on the plumb line (7), one end of the measuring needle (5) is connected to the measuring line fixture (6), the other end of the measuring needle (5) extends into the measuring hole of the measuring device, and the measuring needle (5) is perpendicular to the plumb line (7).

2. The overall vertical deformation measuring device for a nuclear island containment vessel according to claim 1, characterized in that, The measuring device (4) comprises a parallel light illumination system, a photoelectric coupling device, a power supply and a frame. The parallel light illumination system, the photoelectric coupling device and the power supply are all arranged in the frame, and the parallel light illumination system and the photoelectric coupling device are both connected to the power supply.

3. The overall vertical deformation measuring device for the nuclear island containment vessel according to claim 1, characterized in that The measuring line clamp (6) is detachably mounted on the plumb line (7), and comprises a front clamp (19) and a rear clamp (20), wherein the front clamp (19) and the rear clamp (20) are detachably connected, and one end of the measuring needle (5) is detachably connected to the front clamp (19).

4. The overall vertical deformation measuring device for the nuclear island containment vessel according to claim 3, characterized in that, A first clamping groove is provided on one side of the front clamping plate (19) facing the rear clamping plate (20), and a second clamping groove is provided on one side of the rear clamping plate (20) facing the front clamping plate (19). The first clamping groove and the second clamping groove together form a through hole (22), and the through hole (22) is used to clamp and fix the plumb line (7).

5. The overall vertical deformation measuring device for the nuclear island containment vessel according to claim 3, characterized in that, A threaded hole (21) is provided on a side of the front clamping plate (19) facing away from the rear clamping plate (20), and one end of the measuring needle (5) is detachably connected to the threaded hole (21).

6. The overall vertical deformation measuring device for a nuclear island containment vessel according to claim 1, characterized in that The measuring needle (5) comprises an extension rod (23) and a measuring rod (24), one end of the extension rod (23) is detachably connected to one end of the measuring rod (24), and the other end of the extension rod (23) is detachably connected to the measuring line clamp (6).

7. The overall vertical deformation measuring device for the nuclear island containment according to claim 1, wherein, The fixed base comprises a mounting base plate (1), a connecting arm (2) and an equipment support plate (3), wherein the mounting base plate (1) is arranged vertically; The number of the connecting arms (2) is two, the two connecting arms (2) are arranged parallel to each other, one end of each connecting arm (2) is connected to the mounting base plate (1), and the connecting arm (2) is perpendicular to the mounting base plate (1); The device support plate (3) is mounted on the connecting arm (2), and the measuring device (4) is mounted on the device support plate (3).

8. The overall vertical deformation measuring device for the nuclear island containment according to claim 7, characterized in that, The equipment support plate (3) includes a horizontal plate (15) and a vertical plate (16). One vertical plate (16) is provided on each side of the horizontal plate (15). The vertical plates (16) are arranged in one-to-one correspondence with the connecting arms (2). A plurality of first connection holes (17) are provided on the horizontal plate (15), and second connection holes (18) are provided on the vertical plates (16). A first long hole (9) is provided along the length direction of the connecting arm (2). After a first bolt (10) sequentially passes through the first long hole (9) and the second connection hole (18), the equipment support plate (3) is installed on the connecting arm (2). A second bolt (11) passes through the first connection hole (17) to install the measuring device (4) on the equipment support plate (3). An adjusting nut is provided on the second bolt (11).

9. The overall vertical deformation measuring device for the nuclear island containment according to claim 8, characterized in that The second connection hole (18) is a vertically arranged long hole.

10. The overall vertical deformation measuring device for the nuclear island containment vessel according to claim 7, characterized in that, The fixed base further includes an adjusting bottom plate (12). One adjusting bottom plate (12) is provided at one end of each connecting arm (2). At least two laterally arranged second long holes (14) are provided on the adjusting bottom plate (12). After bolts pass through the second long holes (14), the adjusting bottom plate (12) is fixed on the mounting bottom plate (1).

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