Temporary supporting device of steam generator

Abstract

The utility model relates to the technical field of equipment installation, and discloses a steam generator temporary supporting device which comprises a hydraulic system, a supporting table and a limiting part, and the supporting table comprises a hoisting part, a horizontal adjusting part, a supporting seat and a vertical adjusting part. By arranging the vertical adjusting part, the problems that in the prior art, a hydraulic cylinder is subjected to shear stress perpendicular to the axial direction of the hydraulic cylinder during working, and the hydraulic cylinder responsible for adjusting the longitudinal position of the steam generator is damaged due to excessive abrasion for a long time are solved; therefore, the overall operation stability of the supporting table is improved, and later maintenance work is facilitated; by arranging the lead screw, the adjusting rod and the sliding block, due to the fact that the lead screw rotates to drive the sliding block to move to achieve lifting of the steam generator, and due to the fact that threaded connection of the lead screw and the sliding block has a self-locking effect, it can be further guaranteed that when the power part loses efficacy, the steam generator can automatically keep the existing position, and falling is prevented.

Description

Technical Field

[0001] This utility model relates to the field of equipment installation technology, specifically, a temporary support device for a steam generator. Background Technology

[0002] A steam generator (SG) is a device used to heat water into steam, widely used in power, chemical, and nuclear energy industries. Its main function is to heat water to generate steam using an external heat source (such as combustion, nuclear reaction, or heat exchange). A steam generator typically consists of a pressure vessel, piping, and heating elements. The heating elements transfer heat to the water, which then transforms into steam under high temperature and pressure. Steam generators are particularly important in nuclear power plants, as they connect the reactor and the turbine, transferring the heat energy generated by the reactor to the water through heat exchange to produce steam that drives the turbine to generate electricity.

[0003] Because steam generators are typically large and heavy, their support systems must withstand the stresses generated under high temperature and pressure. Support methods are generally divided into two types: fixed supports and adjustable supports. Fixed supports ensure the stability of the equipment during operation, preventing vibration or displacement; while adjustable supports help adjust the equipment's position and orientation to maintain optimal working conditions. Position and orientation adjustments mainly involve the equipment's tilt angle, levelness, and docking accuracy with other systems. These adjustments are crucial for the heat exchange efficiency and safe operation of the steam generator.

[0004] The prior art, Chinese invention patent with publication number CN103492816B, provides a support and alignment structure for a nuclear steam generator. The hydraulic cylinder in the support structure of this device, which is responsible for adjusting the longitudinal position of the steam generator, is often subjected to shear stress, which can lead to excessive wear and shortened lifespan over time. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary support device for a steam generator, which solves the problems of unreasonable setting of various driving components in existing equipment, resulting in abnormal operation of driving components and shortened life.

[0006] This utility model is achieved through the following technical solution: a temporary support device for a steam generator, comprising a hydraulic system, a support platform, and a limiting part, wherein the support platform includes:

[0007] A hoisting unit, used to suspend the steam generator;

[0008] A horizontal adjustment unit, which is installed on a carrier, is used to support and control the circumferential and radial movement of the steam generator; the carrier can be a building such as a wall;

[0009] A support base is installed on the horizontal adjusting part for supporting the steam generator; the support base comprises a support plate and a connecting plate, a guide cylinder is installed on the support plate, and a support rod is slidingly connected to the guide cylinder;

[0010] A vertical adjusting part is installed on the support base for controlling axial movement of the steam generator; the vertical adjusting part comprises two sliders which are distributed on both sides of the support rod and are slidingly connected to the support plate, an adjusting rod is hinged to the sliders, the adjusting rod is hinged to the support rod, a lead screw is rotatably connected to the support plate, threads are arranged at both ends of the lead screw, the threads at both ends have opposite rotation directions, and the sliders are threadedly connected to the lead screw; the vertical adjusting part further comprises a driving part for driving rotation of the lead screw.

[0011] In order to better realize the utility model, further, the driving part comprises an axial oil cylinder, a rack and a gear, the gear is installed on the lead screw, the axial oil cylinder is installed on the support plate, and the rack is installed on the axial oil cylinder.

[0012] In order to better realize the utility model, further, the lifting part comprises a lifting plate, lifting holes and hanging holes are arranged on the lifting plate, and the steam generator is hung in the hanging holes.

[0013] In order to better realize the utility model, further, the horizontal adjusting part comprises an adjusting seat, the adjusting seat is installed on the carrier, a circumferential oil cylinder and a radial oil cylinder are hinged to the adjusting seat, a circumferential sliding plate is installed on the adjusting seat, a radial sliding plate is slidingly connected to the circumferential sliding plate, a connecting shaft is installed on the radial sliding plate, the support base is installed on the connecting shaft, a guide block is installed on the adjusting seat, and the guide block cooperates with the circumferential sliding plate.

[0014] In order to better realize the utility model, further, a plurality of positioning pins are arranged on the support rod, and through holes are arranged on the lifting plate and embedded with the positioning pins.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] (1) The vertical adjusting part is arranged, the hydraulic cylinder in the prior art is subjected to shear stress perpendicular to the axial direction during work, and the hydraulic cylinder responsible for adjusting the longitudinal position of the steam generator is damaged due to excessive wear and leakage, so that the running stability of the support table as a whole is improved, and the maintenance work is facilitated in the later period.

[0017] (2) The utility model discloses a screw rotation, adjusting rod, sliding block is set up, is the screw rotation to drive sliding block displacement to realize the lifting of steam generator because, and because the thread connection of screw and sliding block has the self -locking effect, thus can further guarantee when power part failure, steam generator can also keep the present position automatically, prevent falling. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model.

[0019] Figure 2 It is support platform structure schematic diagram.

[0020] Figure 3 It is support platform structure front view angle schematic diagram.

[0021] Figure 4 It is hoisting part structure schematic diagram.

[0022] Figure 5 It is vertical adjusting part structure schematic diagram.

[0023] Figure 6 It is horizontal adjusting part structure schematic diagram.

[0024] Figure 7 It is circumferential slide, connecting shaft structure schematic diagram.

[0025] Wherein: 1-carrier;2-steam generator;3-hydraulic system;4-support platform;5-limiting part;41-hoisting part;42-horizontal adjusting part;43-vertical adjusting part;44-support seat;411-hoisting plate;412-hoisting hole;413-hanging hole;421-adjusting seat;422-screw;423-circumferential oil cylinder;424-radial oil cylinder;425-circumferential slide;426-radial slide;427-connecting shaft;428-guiding block;431-sliding block;432-adjusting rod;433-screw;434-axial oil cylinder;435-rack;436-gear;441-support plate;442-guiding cylinder;443-support rod;444-connecting plate;445-positioning pin. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Also can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements.For ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0028] Example 1:

[0029] The embodiment provides a steam generator temporary supporting device, specifically as Figures 1-3As shown, including hydraulic system 3, support platform 4, limit part 5, the hydraulic system 3 is used to provide hydraulic oil to the hydraulic components in support platform 4 and / or limit part 5, to drive the hydraulic components in support platform 4, limit part 5 to work normally, the limit part 5 is used to limit the position of steam generator 2, prevent steam generator 2 from tilting, shaking, the specific structure and working principle of the limit part 5 here is consistent with the disclosure content of paragraphs 42-43 of the Chinese invention patent with application number: CN201280020214.4, named: nuclear steam generator support and alignment structure, for those skilled in the art, this is easy to understand, hereinafter will not be repeated. The support platform 4 includes: hoisting part 41, horizontal adjustment part 42, support seat 44, vertical adjustment part 43; the hoisting part 41 is used to hang the steam generator 2; at the same time, if necessary, the hoisting part 41 can be lifted to transport the steam generator 2; the horizontal adjustment part 42 is installed on the carrier 1, used to support and control the circumferential and radial movement of the steam generator 2; to finely adjust the specific position of the steam generator 2; ensure that other equipment and steam generator 2 can work normally; the support seat 44 is installed on the horizontal adjustment part 42 for supporting the steam generator 2; the support seat 44 includes support plate 441, connecting plate 444, the support plate 441 is provided with guide cylinder 442, and support rod 443 is slidably connected on the guide cylinder 442; the support plate 441 and the connecting plate 444 are connected at intervals to form a closed quadrilateral, the connecting plate 444 is used to control the parallelism of the hoisting part 41, and the overall strength of the support seat 44 is strengthened; the vertical adjustment part 43 is installed on the support seat 44, used to control the axial movement of the steam generator 2; the vertical adjustment part 43 includes two sliders 431 distributed on both sides of the support rod 443 and slidably connected on the support plate 441, the slider 431 is hinged with adjusting rod 432, the adjusting rod 432 is hinged on the support rod 443, the support plate 441 is rotatably connected with lead screw 433, both ends of the lead screw 433 are provided with threads, and the rotation directions of the two threads are opposite, the slider 431 is threadedly connected with the lead screw 433; the vertical adjustment part 43 further includes a driving part, the driving part is used to drive the lead screw 433 to rotate.

[0030] The lifting part 41 is connected with the steam generator 2, then the lifting part 41 is lifted, so that the steam generator 2 is inserted into the carrier 1, and then the lifting part 41 is supported by the supporting rod 443; then the adjustment is adaptively adjusted according to the deviation value of the actual position of the steam generator 2 from the preset position, which can include: controlling the horizontal adjusting part 42 to rotate or horizontally translate the steam generator 2, controlling the vertical adjusting part 43 to vertically translate the steam generator 2; when the steam generator 2 is adjusted by the vertical adjusting part 43, the specific adjustment steps are: first, the driving part is started, the screw rod 433 is rotated by the driving part, when the screw rod 433 rotates, the two sliding blocks 431 are close to or away from each other, when the two sliding blocks 431 are away from each other, the sliding block 431 pulls the adjusting rod 432, so that the supporting rod 443 is retracted into the guide cylinder 442, at this time the steam generator 2 moves downward; when the two sliding blocks 431 are close to each other, the sliding block 431 pushes the adjusting rod 432, at this time the supporting rod 443 extends out of the guide cylinder 442, and the steam generator 2 moves upward, and finally the adjustment of the steam generator 2 in the vertical direction is completed.

[0031] Compared with the prior art, the main improvement of the present case is that the vertical adjusting part 43 is arranged, in the prior art, the lifting part 41 is directly lifted or lowered by a single hydraulic cylinder or a jack, at this time one end of the hydraulic cylinder is connected with the supporting seat 44 and the other end is connected with the horizontal adjusting part 42, if the horizontal adjusting part 42 is started to move the steam generator 2, then the hydraulic cylinder in the prior art will be subjected to shear stress perpendicular to the axial direction, and over time the hydraulic cylinder responsible for adjusting the longitudinal position of the steam generator 2 will be damaged due to excessive wear, such as liquid leakage. In the present case, the driving part drives the screw rod 433 to rotate, and the screw rod 433 rotates to drive the sliding block 431 to displace to realize the lifting of the steam generator 2, so the power element in the driving part is not affected by the above problems; and because the threaded connection between the screw rod 433 and the sliding block 431 has a self-locking effect, it can further ensure that when the power part fails, the steam generator 2 can automatically maintain the existing position to prevent falling.

[0032] Embodiment 2:

[0033] This embodiment is further extended on the basis of the above-mentioned embodiments, as shown in Figure 5 The driving part includes an axial oil cylinder 434, a rack 435 and a gear 436, the gear 436 is installed on the screw rod 433, the axial oil cylinder 434 is installed on the supporting plate 441, and the rack 435 is installed on the axial oil cylinder 434.

[0034] When the drive unit is started, the axial cylinder 434 first drives the rack 435 to move. The rack 435 drives the gear 436 meshing with it to rotate. The gear 436 drives the lead screw 433 fixed to it to rotate. During this process, the load on the axial cylinder 434 is all on its axis, so it will not cause excessive wear.

[0035] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0036] Example 3:

[0037] This embodiment further extends the above embodiment, specifically as follows: Figure 3 As shown, the hoisting part 41 includes a hoisting plate 411, which is provided with a hoisting hole 412 and a suspension hole 413. The steam generator 2 is suspended in the suspension hole 413.

[0038] The suspension hole 413 is used to supply the steam generator 2 for suspension, while the hoisting hole 412 is for external equipment to hoist the hoisting plate 411.

[0039] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0040] Example 4:

[0041] This embodiment further extends the above embodiment, specifically as follows: Figures 6-7 As shown, the horizontal adjustment part 42 includes an adjustment seat 421, which is mounted on the carrier 1 by screws 422. A circumferential cylinder 423 and a radial cylinder 424 are hinged on the adjustment seat 421. A circumferential sliding plate 425 is mounted on the adjustment seat 421. A radial sliding plate 426 is slidably connected to the circumferential sliding plate 425. A connecting shaft 427 is mounted on the radial sliding plate 426. A support seat 44 is mounted on the connecting shaft 427. A guide block 428 is mounted on the adjustment seat 421. The guide block 428 cooperates with the circumferential sliding plate 425.

[0042] When the circumferential cylinder 423 is activated, the guide block 428 limits the circumferential sliding plate 425, so the movement path of the circumferential sliding plate 425 is an arc centered on the projection of the axis of the steam generator 2, thereby realizing the rotation of the steam generator 2. When the radial cylinder 424 is activated, the circumferential sliding plate 425 limits the radial sliding plate 426, so the radial sliding plate 426 always moves along the radial direction of the steam generator 2. Multiple radial cylinders 424 cooperate to adjust the distance between the two vertical adjustment parts 43, thereby adapting to the specifications of the steam generator 2 and ensuring that the vertical adjustment part 43 can support the hoisting part 41.

[0043] Other parts of the embodiment are the same as the above-described embodiments, and will not be described again.

[0044] Embodiment 5:

[0045] The embodiment is further extended on the basis of the above-described embodiments, and specifically as shown in Figure 4 A plurality of positioning pins 445 are arranged on the support rod 443, and a plurality of through holes are arranged on the hoisting plate 411 to be embedded with the positioning pins 445.

[0046] When the hoisting equipment lowers the hoisting plate 411, the position of the vertical adjusting part 43 is adjusted, so that the rack 435 is inserted into the through hole on the hoisting plate 411, thereby realizing the support of the hoisting plate 411 by the lead screw 433, and preventing the relative sliding between the hoisting plate 411 and the lead screw 433.

[0047] Other parts of the embodiment are the same as the above-described embodiments, and will not be described again.

[0048] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, and any simple modification or equivalent change according to the technical essence of the utility model is within the protection scope of the utility model.

Claims

1. A steam generator temporary support device comprising a hydraulic system (3), a support table (4), a limiting portion (5), characterized in that, The support table (4) comprises: a hoisting part (41) for suspending the steam generator (2); a horizontal adjusting part (42) mounted on the carrier (1) for supporting and controlling the circumferential and radial movement of the steam generator (2); a support seat (44) mounted on the horizontal adjusting part (42) for supporting the steam generator (2); the support seat (44) comprises a support plate (441) on which a guide cylinder (442) is mounted, and a connecting plate (444) on which a support rod (443) is slidingly connected; a vertical adjusting part (43) mounted on the support seat (44) for controlling the axial movement of the steam generator (2); the vertical adjusting part (43) comprises two sliders (431) slidingly connected to the support plate (441) and distributed on both sides of the support rod (443), an adjusting rod (432) hinged to the slider (431), the adjusting rod (432) being hinged to the support rod (443), a lead screw (433) rotatably connected to the support plate (441), the lead screw (433) having opposite threads at both ends, and the slider (431) being threadedly connected to the lead screw (433); the vertical adjusting part (43) further comprises a driving part for driving the rotation of the lead screw (433).

2. A steam generator temporary support device according to claim 1, characterized in that: The driving part comprises an axial oil cylinder (434), a rack (435), and a gear (436) mounted on the lead screw (433), the axial oil cylinder (434) being mounted on the support plate (441), and the rack (435) being mounted on the axial oil cylinder (434).

3. A steam generator temporary support device according to claim 1, characterized in that: The hoisting part (41) comprises a hoisting plate (411) provided with a hoisting hole (412) and a suspension hole (413), and the steam generator (2) is suspended in the suspension hole (413).

4. A steam generator temporary support device according to claim 1, characterized in that: The horizontal adjusting part (42) comprises an adjusting seat (421) mounted on the carrier (1), a circumferential oil cylinder (423) and a radial oil cylinder (424) hinged to the adjusting seat (421), a circumferential sliding plate (425) mounted on the adjusting seat (421), a radial sliding plate (426) slidingly connected to the circumferential sliding plate (425), a connecting shaft (427) mounted on the radial sliding plate (426), and the support seat (44) being mounted on the connecting shaft (427), a guide block (428) mounted on the adjusting seat (421), and the guide block (428) cooperating with the circumferential sliding plate (425).

5. A steam generator temporary support device according to claim 3, characterized in that: The support rod (443) is provided with a plurality of positioning pins (445), and the hoisting plate (411) is provided with through holes matching the positioning pins (445).

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