Variable space anti-vibration low-carbon energy-saving steam generator

Abstract

The application discloses a variable space anti-vibration low-carbon energy-saving steam generator, which comprises a cylinder, a first pipe box arranged at one end of the cylinder and a second pipe box arranged at the other end of the cylinder, the cylinder has a closed cavity, a heat exchange core is arranged in the closed cavity, a boiler feed water inlet is arranged at the bottom of the cylinder, and a saturated steam outlet is arranged at the middle of the top of the cylinder; a heat conducting oil inlet is arranged at the lower part of the first pipe box, and a heat conducting oil outlet is arranged at the upper part of the first pipe box; the heat exchange core is arranged in the cylinder, a pipe box partition plate is arranged in the cylinder, the pipe box partition plate divides the first pipe box into two cavities, the heat conducting oil with a temperature higher than a set range enters the lower cavity of the first pipe box through the heat conducting oil inlet and then flows into the lower pipe bundle of the heat exchange core, flows into the upper pipe bundle of the heat exchange core after being deflected by the second pipe box, and finally flows out from the heat conducting oil outlet, the boiler feed water enters from the boiler feed water inlet and absorbs the heat released by the heat exchange core to form steam which is then discharged from the saturated steam outlet.

Description

Technical Field

[0001] This invention relates to the field of steam generator technology, and specifically to a variable-space, vibration-resistant, low-carbon, and energy-saving steam generator. Background Technology

[0002] Shell-and-tube steam generators offer superior environmental performance compared to steam boilers, producing no smoke, dust, or ash waste, and are widely used in chemical, food, and other industries. High-temperature heat transfer oil, the heat medium, enters the tube bundle of the steam generator via a hot oil circulation pump or directly from the heat carrier heater. Heat inside the tubes is transferred to the boiler water outside the tubes through the tube walls, heating the water to produce steam. When the shell side of the heat transfer oil steam generator exhibits a two-phase flow pattern, complex two-phase flow patterns easily appear outside the tube bundle, generating periodic impact forces perpendicular to the tube bundle. This causes flow-induced vibration in the steam generator, leading to additional pressure loss, noise, and damage to heat transfer elements. Especially in current traditional baffle plate steam generators, the presence of baffles causes the shell-side fluid to exhibit a "Z"-shaped, repeatedly baffled flow pattern. This not only results in low heat transfer efficiency but also generates periodic alternating stress in the Karman vortex street formed behind the heat exchange tube bundle, causing vibration perpendicular to the fluid flow direction. Friction and cutting occur between the tube bundle and the baffles, leading to tube wear and leaks at the tube sheet, posing safety hazards. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a variable-space vibration-resistant, low-carbon, and energy-saving steam generator. It achieves a grid-like multi-channel structure through the self-support of high-efficiency HP tube bundles, enhancing the overall vibration resistance of the tube bundles and the heat transfer efficiency inside and outside the tubes. The shell side of the steam generator forms a longitudinal, full-space flow channel, allowing boiler feedwater and steam to flow smoothly in the shell side. This results in uniform fluid temperature inside the cylinder, preventing local overcooling or overheating and improving the safety of equipment operation.

[0004] To achieve the above objectives, the present invention can adopt the following technical solutions:

[0005] A variable-space, vibration-resistant, low-carbon, and energy-saving steam generator, comprising:

[0006] The cylindrical body has a closed cavity, in which a heat exchange core is provided. The bottom of the cylindrical body is provided with a boiler feedwater inlet, and the top center of the cylindrical body is provided with a saturated steam outlet.

[0007] A first tube box is provided at one end of the cylinder, with a heat transfer oil inlet at the lower part of the first tube box and a heat transfer oil outlet at the upper part of the first tube box.

[0008] A second pipe box is disposed at the other end of the cylinder; wherein...

[0009] The cylinder is equipped with a heat exchange core and a tube box baffle. The tube box baffle divides the first tube box into upper and lower chambers. Heat transfer oil with a temperature higher than a set range enters the lower chamber of the first tube box through the heat transfer oil inlet and then flows into the lower tube bundle of the heat exchange core. After being deflected by the second tube box, it flows into the upper tube bundle of the heat exchange core and finally flows out from the heat transfer oil outlet. Boiler feedwater enters through the boiler feedwater inlet and absorbs the heat released by the heat exchange core to form steam, which is then discharged from the saturated steam outlet.

[0010] As described above, the variable space vibration-resistant, low-carbon, and energy-saving steam generator further includes a heat exchange core comprising multiple heat exchange tube bundles. Multiple heat exchange tube bundles arranged on the upper part of the cylinder are fixed by local fixing straps to form the upper tube bundle of the heat exchange core. Multiple heat exchange tube bundles arranged on the lower part of the cylinder are fixed by local fixing straps to form the lower tube bundle of the heat exchange core. The upper tube bundle and the lower tube bundle of the heat exchange core are then bundled together by an overall fixing strap to form the heat exchange core.

[0011] In the variable-space vibration-resistant, low-carbon, and energy-saving steam generator described above, the heat exchange core is further fixed to the cylinder by support assemblies spaced apart along the length of the cylinder. Each support assembly includes a support plate, and the support plate has an upper support frame and a lower support frame for respectively fixing the upper tube bundle and the lower tube bundle of the heat exchange core.

[0012] The upper support frame includes: an upper tube bundle I-shaped support member located on the lower frame of the upper support frame, an upper tube bundle fastening plate located on the upper frame of the upper support frame, and side stiffeners located on the left and right frames of the upper support frame.

[0013] The lower support frame includes: a lower tube bundle support plate, an upper tube bundle fastening plate, and side stiffeners located on the lower frame of the lower support frame.

[0014] As described above, the variable space anti-vibration low-carbon energy-saving steam generator further includes a support plate with multiple flow holes and two rectangular notches at the bottom to facilitate the installation of two slides.

[0015] As described above, the variable space vibration-resistant low-carbon energy-saving steam generator further includes a fixed tube sheet on one side of the cylinder and a floating tube sheet on the other side. The fixed tube sheet and the floating tube sheet enclose the closed cavity, wherein the two ends of the heat exchange core are respectively fixed to the fixed tube sheet and the floating tube sheet.

[0016] In the variable space vibration-resistant, low-carbon, and energy-saving steam generator described above, the upper tube bundle of the heat exchange core is closer to the center line of the cylinder, and the lower tube bundle of the heat exchange core is closer to the bottom of the cylinder.

[0017] As described above, the variable space vibration-resistant, low-carbon, and energy-saving steam generator further includes a tie rod inside the cylinder, one end of which is connected to a fixed tube sheet. The other end of the tie rod passes through a tie rod hole opened on the support plate to form the heat exchange core as a whole.

[0018] In the variable space vibration-resistant low-carbon energy-saving steam generator described above, an anti-impact plate is further provided above the boiler feedwater inlet, with the plane of the anti-impact plate facing the boiler feedwater inlet.

[0019] As described above, the variable space vibration-resistant, low-carbon, and energy-saving steam generator further includes a support and a drain port at the bottom of the cylinder.

[0020] As described above, in the variable space vibration-resistant low-carbon energy-saving steam generator, the heat exchange tube bundle adopts HP tubes, wherein the HP tubes are straight tubes or U-shaped tubes, and the HP tubes have a smooth surface or have been processed with "T" shaped fins or porous sintered surfaces.

[0021] Compared with the prior art, the advantages of this invention are as follows:

[0022] 1. The high-efficiency HP tube has enhanced heat transfer on both the inside and outside of the tube. Its special alternating curved surface and spiral channel on the outside of the tube enhance the turbulence intensity of the heat transfer oil inside the tube and the disturbance of the rising bubbles outside the tube, thereby improving the convection and boiling heat transfer coefficients. This can reduce the heat transfer temperature difference, reduce the risk of fluid boiling, and enhance the stability of equipment operation.

[0023] 2. This invention eliminates the bow-shaped baffle structure used in traditional heat exchangers. The high-efficiency HP tube bundle relies on external support to achieve multi-point self-support. The tube bundle is bound with fixing straps, forming a mesh-like integrated structure, which strengthens the overall rigidity and improves the overall vibration resistance of the tube bundle.

[0024] 3. By deforming the high-efficiency HP tubes themselves, the tube-side space is transferred to the shell-side boiling space, realizing a variable space design for the steam generator. The shell side presents a multi-channel, longitudinally full-space flow channel with no flow dead zones. Steam and boiler feedwater flow smoothly and evenly, without localized overcooling or overheating, ensuring stable equipment operation.

[0025] 4. The support plate has flow holes, which reduces the weight of the support plate and increases the longitudinal flow space of the medium. The tube bundle on the support plate adopts I-shaped support components, which have good support stability, and the area of ​​the stiffening plate that supports and contacts the tube bundle is widened, effectively preventing tube cutting.

[0026] 5. The high-efficiency HP tube bundle adopts an asymmetrical layout for the upper and lower tube sides. The lower tube bundle is moved down closer to the bottom of the shell, and the upper tube bundle is moved down as close as possible to the center line of the shell. More non-tube space is left in the upper part of the shell to facilitate steam flow and discharge. The non-tube space in the lower part of the shell is reduced to enhance the disturbance of the fluid at the bottom of the shell and reduce the risk of fluid scaling. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the variable space vibration-resistant, low-carbon, and energy-saving steam generator according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the heat exchange core of the variable space vibration-resistant low-carbon energy-saving steam generator according to an embodiment of the present invention;

[0030] Figure 3 This is a partial enlarged view of the support component according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the support component according to an embodiment of the present invention.

[0032] The components are as follows: 1. Heat transfer oil outlet; 2. First tube box; 3. Tube box partition; 4. Heat transfer oil inlet; 5. Fixed tube sheet; 6. Heat exchange core; 7. Shell; 8. Saturated steam outlet; 9. Floating tube sheet; 10. Hook ring; 11. Second tube box; 12. Support; 13. Boiler feedwater inlet; 14. Drain outlet; 15. Heat exchange tube bundle; 16. Support assembly; 16-1. Support plate; 16-2. Upper tube bundle I-shaped support; 16-3. Upper tube bundle fastening plate; 16-4. Lower tube bundle support plate; 16-5. Side stiffener; 16-6. Flow hole; 16-7. Tie rod hole; 17. Slide rail; 18. Anti-impact plate; 19-1. Partial fixing band; 19-2. Overall fixing band; 20. Tie rod. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] Example:

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, in the embodiments of this invention are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0037] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] See Figures 1 to 4 This invention provides a variable-space vibration-resistant, low-carbon, and energy-saving steam generator. It achieves a grid-like multi-channel structure through high-efficiency HP tube bundle self-support, which enhances the overall vibration resistance of the tube bundle and the heat transfer efficiency inside and outside the tubes. The shell side of the steam generator forms a longitudinal, full-space flow channel, allowing boiler feedwater and steam to flow smoothly in the shell side. This results in uniform fluid temperature inside the shell 7, preventing local overcooling and overheating, improving the safety of equipment operation, and solving the problems of flow-induced vibration and low heat transfer efficiency in existing steam generators. The steam generator of the present invention may include: a cylinder 7, a first tube box 2 disposed at one end of the cylinder 7, and a second tube box 11 disposed at the other end of the cylinder 7. The cylinder 7 has a closed cavity, and a heat exchange core 6 is disposed in the closed cavity. A boiler feedwater inlet 13 is disposed at the bottom of the cylinder 7, and a saturated steam outlet 8 is disposed in the middle of the top of the cylinder 7. A heat transfer oil inlet 4 is disposed at the lower part of the first tube box 2, and a heat transfer oil outlet 1 is disposed at the upper part of the first tube box 2. The heat exchange core 6 is disposed inside the cylinder 7, and a tube box partition 3 is disposed inside the cylinder 7. The tube box partition 3 divides the first tube box 2 into upper and lower cavities. Heat transfer oil with a temperature higher than a set range enters the lower cavity of the first tube box 2 through the heat transfer oil inlet 4 and then flows into the lower tube bundle of the heat exchange core 6. After being deflected by the second tube box 11, it flows into the upper tube bundle of the heat exchange core 6 and finally flows out from the heat transfer oil outlet 1. Boiler feedwater enters through the boiler feedwater inlet 13 and absorbs the heat released by the heat exchange core 6 to form steam, which is then discharged from the saturated steam outlet 8. In this embodiment, high-temperature heat transfer oil enters the lower cavity of the first tube box 2 through the heat transfer oil inlet 4, flows into the lower tube bundle, and flows into the upper tube bundle after being deflected by the second tube box 11. After releasing heat inside the heat exchange core 6, it flows out from the heat transfer oil outlet 1. Low-temperature boiler feedwater enters the shell 7 through the boiler feedwater inlet 13, absorbs the heat released by the heat exchange core 6 to form steam, and then discharges from the saturated steam outlet 8. Since this embodiment of the invention eliminates the bow-shaped baffle structure used in traditional heat exchangers, the heat exchange core 6 is fixedly installed inside the shell 7, forming a longitudinal full-space flow channel in the shell side. The boiler feedwater and steam inside the shell 7 can flow smoothly along the axial direction of the tube bundle of the heat exchange core 6. The overall rigidity of the heat exchange core 6 is strengthened, improving the overall vibration resistance of the tube bundle of the heat exchange core 6 and enhancing the operational stability of the equipment.

[0040] See Figure 1 , Figure 1A variable-space, vibration-resistant, low-carbon, and energy-saving steam generator is demonstrated, which may include: a first tube box 2, a cylinder 7, and a second tube box 11. The first tube box 2 is equipped with a tube box partition 3 that divides it into upper and lower cavities. The first tube box 2 and the second tube box 11 are respectively connected to the two ends of the cylinder 7. A heat exchange core 6 is provided inside the cylinder 7. Fixed tube sheets 5 and floating tube sheets 9 are respectively installed at both ends of the heat exchange core 6, forming a closed cavity. The first tube box 2 has a heat transfer oil inlet 4 and a heat transfer oil outlet 1. The heat transfer oil inlet 4 is connected to either the upper or lower cavity, and the heat transfer oil outlet 1 is connected to the other cavity. The bottom of the cylinder 7 is equipped with a support 12, a boiler feedwater inlet 13, and a drain outlet 14. A saturated steam outlet 8 is also provided at the top center of the cylinder 7.

[0041] See Figure 2 In the above embodiments, the heat exchange core 6 further includes multiple heat exchange tube bundles 15. The heat exchange tube bundles 15 are high-efficiency HP tubes, which can be straight tubes or U-shaped tubes, and can have a smooth surface, or be processed with "T"-shaped fins or porous sintered surfaces. The heat exchange tube bundles 15 achieve multi-point self-support by relying on the outside of the tubes. The tube bundles are arranged compactly, and the heat exchange tube bundles 15 achieve a variable space effect through their own flattening deformation. Under the same cylinder diameter 7, the external space of the high-efficiency HP tube bundles is increased, providing more boiling and flow space for steam, making the generated steam flow smoother, allowing it to rise and be discharged quickly. Steam is less likely to form a vapor film on the surface of the tube bundles, which can avoid unstable film boiling, thereby affecting the heat exchange efficiency and stability of the steam generator. In addition, multiple heat exchange tube bundles 15 arranged on the upper part of the cylinder 7 are first fixed by local fixing straps 19-1 to form the upper tube bundle of the heat exchange core 6, and multiple heat exchange tube bundles 15 arranged on the lower part of the cylinder 7 are first fixed by local fixing straps 19-1 to form the lower tube bundle of the heat exchange core 6. Then, the upper tube bundle and the lower tube bundle of the heat exchange core 6 are bundled together by an overall fixing strap 19-2 to form the heat exchange core 6. As a result, the heat exchange tube bundles 15 form a self-supporting grid-like integrated structure, which strengthens the overall rigidity and significantly reduces the risk of vibration. In addition, the high-efficiency HP tubes have enhanced heat transfer effects on both the inside and outside of the tube. The special alternating curved surface and spiral channel on the outside of the tube enhance the turbulence intensity of the heat transfer oil inside the tube and the disturbance of the rising bubbles outside the tube, which improves the convection and boiling heat transfer coefficients. This can reduce the heat transfer temperature difference, reduce the risk of fluid boiling over, and thus enhance the stability of equipment operation. Furthermore, by deforming the high-efficiency HP tubes themselves, the tube-side space can be transferred to the shell-side boiling space, thus realizing a variable-space design for the steam generator. As a result, the shell side presents a multi-channel, longitudinally full-space flow channel with no flow dead zones, ensuring smooth and uniform flow of steam and boiler feedwater, eliminating localized overcooling and overheating, and guaranteeing stable equipment operation.

[0042] See Figures 3-4 The invention also includes a support assembly 16 for supporting and fixing the heat exchange tube bundle 15. The support assembly 16 includes a support plate 16-1, an upper tube bundle I-shaped support 16-2, an upper tube bundle fastening plate 16-3, a lower tube bundle support plate 16-4, and side stiffeners 16-5. The upper and lower tube bundles adopt an asymmetrical layout. The upper tube bundle is moved as low as possible closer to the centerline of the cylinder 7, leaving more non-tube space in the upper part of the cylinder 7; the lower tube bundle is moved as low as possible closer to the bottom of the cylinder 7, reducing the non-tube space in the lower part of the cylinder 7. In this embodiment, through the asymmetrical layout of the upper and lower tubes of the high-efficiency HP tube bundle, the lower tube bundle is moved lower and closer to the bottom of the cylinder 7, and the upper tube bundle is moved as low as possible closer to the centerline of the cylinder 7, leaving more non-tube space in the upper part of the cylinder 7 to facilitate steam flow and discharge; while reducing the non-tube space in the lower part of the cylinder 7, it enhances the disturbance of the fluid at the bottom of the cylinder 7 and reduces the risk of fluid scaling. In addition, the support plate 16-1 has flow holes 16-6 and tie rod holes 16-7, and two rectangular notches are provided at the bottom of the support plate 16-1 to facilitate the installation of the two slide rails 17. The support plate and stiffening plate that contact the heat exchange tube bundle 15 with the support plate 16-1 are widened to 30-50mm. The tie rod 20 passes through the tie rod hole 16-7 to connect and fix all the support components 16, and finally fixes them to the fixed tube sheet 5, forming the heat exchange core 6 into a whole. By opening the flow holes 16-6 on the support plate 16-1, the weight of the support plate 16-1 can be reduced, and the longitudinal flow space of the medium can be increased. The tube bundle on the support plate 16-1 adopts I-shaped support members, which have good support stability, and the widened area of ​​the stiffening plate that supports and contacts the tube bundle can effectively prevent tube cutting. In addition, an anti-impact plate 18 is welded and fixed at the boiler feedwater inlet 13.

[0043] The working process of the steam generator in this embodiment of the invention is as follows: High-temperature heat transfer oil enters the lower cavity of the first tube box 2 through the heat transfer oil inlet 4, flows into the lower tube bundle, and flows into the upper tube bundle after being deflected by the second tube box 11. After releasing heat inside the high-efficiency HP tube bundle, it flows out from the heat transfer oil outlet 1. Low-temperature boiler feedwater enters through the boiler feedwater inlet 13 and is evenly distributed into the cylinder 7 after impacting the anti-impact baffle, avoiding direct impact of the low-temperature boiler feedwater on the tube wall of the high-temperature heat exchange tube bundle, which would cause local overcooling and large temperature difference heat exchange, leading to boiling over and instability of the liquid. Since there is no baffle structure in the traditional steam generator, the high-efficiency HP tube bundle presents a self-supporting grid-like multi-channel structure. The shell side forms a longitudinal full-space flow channel, and the boiler feedwater and steam in the cylinder 7 can flow smoothly along the tube bundle axis. In addition, the flow holes 16-6 opened in the support component 16 further increase the flow cross section of the fluid, making the fluid temperature in the cylinder 7 uniform and preventing local overcooling and overheating, thereby ensuring the stability of boiling heat transfer.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A variable-space, vibration-resistant, low-carbon, energy-saving steam generator, characterized in that, include: The cylindrical body has a closed cavity, in which a heat exchange core is provided. The bottom of the cylindrical body is provided with a boiler feedwater inlet, and the top center of the cylindrical body is provided with a saturated steam outlet. A first tube box is provided at one end of the cylinder, with a heat transfer oil inlet at the lower part of the first tube box and a heat transfer oil outlet at the upper part of the first tube box. A second tube box is installed at the other end of the cylinder; The heat exchange core is fixed to the cylinder by support assemblies spaced apart along the length of the cylinder. Each support assembly includes a support plate, and the support plate has an upper support frame and a lower support frame for fixing the upper tube bundle and the lower tube bundle of the heat exchange core, respectively. The upper support frame includes: an upper tube bundle I-shaped support member located on the lower frame of the upper support frame, an upper tube bundle fastening plate located on the upper frame of the upper support frame, and side stiffeners located on the left and right frames of the upper support frame. The lower support frame includes: a lower tube bundle support plate, an upper tube bundle fastening plate, and side stiffeners located on the lower frame of the lower support frame; The cylinder is equipped with a heat exchange core and a tube box baffle. The tube box baffle divides the first tube box into upper and lower chambers. Heat transfer oil with a temperature higher than a set range enters the lower chamber of the first tube box through the heat transfer oil inlet and then flows into the lower tube bundle of the heat exchange core. After being deflected by the second tube box, it flows into the upper tube bundle of the heat exchange core and finally flows out from the heat transfer oil outlet. Boiler feedwater enters through the boiler feedwater inlet and absorbs the heat released by the heat exchange core to form steam, which is then discharged from the saturated steam outlet.

2. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, The heat exchange core includes multiple heat exchange tube bundles. The multiple heat exchange tube bundles arranged on the upper part of the cylinder are fixed by local fixing straps to form the upper tube bundle of the heat exchange core. The multiple heat exchange tube bundles arranged on the lower part of the cylinder are fixed by local fixing straps to form the lower tube bundle of the heat exchange core. The upper tube bundle and the lower tube bundle of the heat exchange core are bundled together by an overall fixing strap to form the heat exchange core.

3. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, The support plate is also provided with multiple flow holes, and the lower part of the support plate has two rectangular notches to facilitate the installation of two slides.

4. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, A fixed tube sheet is provided on one side of the cylinder, and a floating tube sheet is provided on the other side. The fixed tube sheet and the floating tube sheet enclose the closed cavity, wherein the two ends of the heat exchange core are respectively fixed on the fixed tube sheet and the floating tube sheet.

5. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, The upper tube bundle of the heat exchange core is close to the center line of the cylinder, and the lower tube bundle of the heat exchange core is close to the bottom of the cylinder.

6. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 4, characterized in that, The cylinder is also provided with a tie rod at one end connected to the fixed tube sheet, and the other end of the tie rod passes through the tie rod hole opened on the support plate to form the heat exchange core as a whole.

7. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, An anti-surge plate is installed above the boiler feedwater inlet, with the plane of the anti-surge plate facing the boiler feedwater inlet.

8. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 1, characterized in that, The bottom of the cylinder is provided with a support and a drain outlet.

9. The variable-space vibration-resistant, low-carbon, energy-saving steam generator according to claim 2, characterized in that, The heat exchange tube bundle uses HP tubes, wherein the HP tubes are straight tubes or U-shaped tubes, and the HP tubes have a smooth surface or have been machined with "T" shaped fins or porous sintered surfaces.

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