Steam surface type heating device

Abstract

The utility model discloses a steam surface type heating device, which belongs to the technical field of steam surface type heating and comprises a mounting base, a heat exchange shell component used for reducing heat loss is mounted on the mounting base, and a heat exchange component used for heat exchange is mounted in the heat exchange shell component. Second spiral blades used for improving the heat exchange effect are installed on the heat exchange assembly. According to the mode, the outer protective shell is arranged at the outer end of the inner protective shell, and the space between the outer protective shell and the inner protective shell is vacuumized through the exhaust pipe, so that heat conduction can be reduced, and heat loss caused by medium conduction between the inner shell and the outer shell is reduced; the contact area with steam is increased through a second spiral blade, the heat transfer efficiency is improved, and meanwhile, a phase change energy storage material is arranged at the inner end of the second spiral blade to buffer temperature fluctuation to a certain extent and improve the stability of the production process.

Description

Technical Field

[0001] This utility model relates to the field of steam surface heating technology, and specifically to a steam surface heating device. Background Technology

[0002] In the vast system of modern industrial production and daily life, the efficient transfer and utilization of heat always occupies a crucial position. Steam surface heating devices are mainly designed for heating alkaline solutions in the anion regeneration system of power plants, thereby improving regeneration efficiency. They can also be used in raw water heating systems or other heating systems.

[0003] Existing steam heating devices typically employ a single-shell structure, allowing heat to easily dissipate into the external environment through these media. This not only wastes energy but also makes it difficult to maintain a stable temperature environment inside the heat exchanger, affecting heat exchange efficiency and preventing heat from being concentrated within the heat exchanger for efficient transfer. Furthermore, the short and relatively simple flow path of steam within the heat exchanger hinders sufficient heat exchange, resulting in incomplete heat transfer and low thermal utilization. The steam may simply flow in a straight line within the device, without rotation or disturbance, leading to uneven temperature distribution within the steam and negatively impacting the overall heat exchange effect.

[0004] Furthermore, existing heating devices primarily rely on direct contact between the heat exchanger tube wall and the steam for heat transfer. This limited contact area results in low heat transfer efficiency. Heat cannot be quickly and effectively transferred from the steam to components such as the heat exchanger tube, thus affecting the overall efficiency of the heating device. When the steam temperature fluctuates, existing heating devices cannot adjust the temperature promptly and effectively, causing significant changes in the output temperature. For production processes with high temperature stability requirements, this can lead to unstable product quality and even disrupt normal production.

[0005] Based on this, the present invention designs a steam surface heating device to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a steam surface heating device.

[0007] The technical solution adopted to solve the above technical problems is:

[0008] A steam surface heating device includes a mounting base, on which a heat exchange shell assembly for reducing heat loss is mounted, a heat exchange component for heat exchange is installed inside the heat exchange shell assembly, and a second helical blade for improving heat exchange efficiency is mounted on the heat exchange component.

[0009] The heat exchange shell assembly is arranged in two sets on the left and right sides, both of which are mounted on the mounting base.

[0010] Through the above technical solution, by setting an outer protective shell at the outer end of the inner protective shell and evacuating the space between the outer and inner protective shells through a vacuum pipe, heat conduction can be reduced, heat loss through the medium between the inner and outer shells can be minimized, the heat exchanger's insulation performance can be improved, and heat can be transferred more concentratedly inside the heat exchanger, thus improving heat exchange efficiency. By setting the first spiral blade, the steam flows along a spiral path, increasing the flow path length of the steam within the inner protective shell, making heat exchange more thorough. At the same time, the first spiral blade will cause the steam to rotate and turbulent, making the temperature distribution inside the steam more uniform, and also enhancing the heat transfer between the steam and the heat exchanger wall and the cold medium. By setting the second spiral blade, the contact area with the steam is increased, and the heat transfer efficiency is improved by transferring heat to the heat exchange tube through the second spiral blade. At the same time, a phase change energy storage material is set at the inner end of the second spiral blade to buffer temperature fluctuations to a certain extent. When the steam temperature rises, the phase change material absorbs excess heat and undergoes phase change; when the steam temperature drops, the phase change material releases heat, thereby making the output temperature of the heat exchange device more stable, which is conducive to improving the stability of the production process.

[0011] Furthermore, the heat exchange shell assembly includes an outer protective shell, an inner protective shell, and mounting plates. The inner protective shell is disposed inside the outer protective shell, and a set of mounting plates is welded to each end of the inner protective shell. The two sets of mounting plates are fixedly connected to the upper and lower ends of the outer protective shell by screws, and both sets of outer protective shells are fixedly mounted on the mounting base.

[0012] By using the above technical solution, the space between the outer protective shell and the inner protective shell can be evacuated through the evacuation pipe, which can reduce heat conduction, reduce heat loss between the inner and outer shells through the medium, improve the heat exchanger's insulation performance, and reduce noise pollution.

[0013] Furthermore, the lower end surfaces of the two sets of mounting plates located at the lower end are respectively fixedly installed with air extraction pipes.

[0014] The above technical solution involves connecting a vacuum pump to a vacuum pumping device via a vacuum pipe to evacuate the space between the outer protective shell and the inner protective shell.

[0015] Furthermore, air inlet pipes are fixedly installed on the upper left side of the two sets of inner protective shells, and the two sets of air inlet pipes are fixedly connected to the two sets of outer protective shells respectively. Air outlet pipes are fixedly installed on the lower right side of the two sets of inner protective shells, and the two sets of air outlet pipes are fixedly connected to the outer protective shells respectively.

[0016] Furthermore, the exhaust pipe on the left side is connected to the intake pipe on the right side via a pipe, and the outlet at the upper end of the inner protective shell on the left side is connected to the inlet at the lower end of the inner protective shell on the right side via a pipe.

[0017] Through the above technical solution, both steam and the heated medium undergo two heat exchanges, thereby making full use of the steam heat and avoiding energy waste.

[0018] Furthermore, the heat exchange assembly includes a first helical blade, a heat exchange tube, a plug hole, a connecting plate, and a mounting hole. The first helical blade is disposed at the inner end of the inner protective shell, and the outer edge of the first helical blade is welded and fixed to the inner sidewall of the inner protective shell. The first helical blade has multiple sets of plug holes for inserting into the heat exchange tube. The heat exchange tube has multiple sets of plug holes respectively inserted into the plug holes on the first helical blade and fixedly connected to the first helical blade by welding.

[0019] The above technical solution uses the first helical blades to make the steam flow along the helical path, which increases the path of the steam inside the inner end of the protective shell, making the heat exchange more thorough. At the same time, the first helical blades will cause the steam to rotate and turbulent, making the temperature distribution inside the steam more uniform, and also enhancing the heat transfer between the steam and the heat exchanger wall and the cold medium.

[0020] Furthermore, the connecting plate is provided with two sets of upper and lower parts, and the connecting plate has multiple sets of mounting holes for inserting heat exchange tubes. The outer side wall of the connecting plate is welded and fixed to the inner side wall of the inner protective shell.

[0021] Furthermore, a second helical blade is fixedly installed on the outer wall of the heat exchange tube, and a phase change energy storage material is provided at the inner end of the second helical blade. The first helical blade is provided with an installation groove that passes through when the second helical blade is installed, and the installation groove is connected to the insertion hole.

[0022] The above technical solution increases the contact area with steam by using the second spiral blade, allowing heat to be transferred to the heat exchange tube through the second spiral blade, thus improving the efficiency of heat transfer. At the same time, a phase change energy storage material is set at the inner end of the second spiral blade to buffer temperature fluctuations to a certain extent. When the steam temperature rises, the phase change material absorbs excess heat and undergoes phase change; when the steam temperature drops, the phase change material releases heat, thereby making the output temperature of the heat exchange device more stable, which is conducive to improving the stability of the production process. When installing the second spiral blade, assembly can be completed by screwing it into the mounting slot.

[0023] The beneficial effects of this utility model are as follows: (1) By setting an outer protective shell at the outer end of the inner protective shell and evacuating the space between the outer protective shell and the inner protective shell through the evacuation pipe, heat conduction can be reduced, heat loss between the inner shell and the outer shell through the medium can be reduced, the heat insulation performance of the heat exchanger can be improved, and heat can be transferred more concentratedly inside the heat exchanger, thereby improving the heat exchange efficiency; (2) By setting the first spiral blade, the steam flows along the spiral path, increasing the flow path length of the steam in the inner protective shell, making the heat exchange more thorough. At the same time, the first spiral blade will cause the steam to rotate and disturb, making the temperature distribution inside the steam more uniform, and also strengthening the heat transfer between the steam and the heat exchanger wall and the cold medium. By setting the second spiral blade, the contact area with the steam is increased, and the heat transfer efficiency is improved by transferring the heat to the heat exchange tube through the second spiral blade. At the same time, the phase change energy storage material is set at the inner end of the second spiral blade to buffer the temperature fluctuation to a certain extent. When the steam temperature rises, the phase change material absorbs the excess heat and undergoes phase change; when the steam temperature drops, the phase change material releases heat, thereby making the output temperature of the heat exchange device more stable, which is conducive to improving the stability of the production process. Attached Figure Description

[0024] Figure 1 This utility model provides a three-dimensional steam surface heating device. Figure 1 ;

[0025] Figure 2 This is a front view of a steam surface heating device according to the present invention;

[0026] Figure 3 For along Figure 2 A sectional view along the AA direction;

[0027] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0028] Figure 5 This is a schematic diagram of the first helical blade;

[0029] Figure 6 This is a schematic diagram of the connecting disk;

[0030] Figure 7 This is a schematic diagram of the second helical blade.

[0031] Figure label:

[0032] 1. Mounting base; 2. Heat exchanger shell assembly; 21. Outer protective shell; 22. Inner protective shell; 23. Mounting plate; 3. Heat exchanger assembly; 31. First helical blade; 32. Heat exchanger tube; 33. Insertion hole; 34. Connecting plate; 35. Mounting hole; 4. Second helical blade; 5. Mounting groove; 6. Phase change energy storage material; 7. Inlet pipe; 8. Outlet pipe; 9. Extraction pipe. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0035] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A steam surface heating device includes a mounting base 1, on which a heat exchange shell assembly 2 for reducing heat loss is mounted, a heat exchange component 3 for heat exchange is installed inside the heat exchange shell assembly 2, and a second spiral blade 4 for improving heat exchange effect is mounted on the heat exchange component 3.

[0036] The heat exchange shell assembly 2 includes an outer protective shell 21, an inner protective shell 22, and a mounting plate 23. The inner protective shell 22 is located inside the outer protective shell 21. A set of mounting plates 23 is welded to both ends of the inner protective shell 22. The two sets of mounting plates 23 are fixedly connected to the upper and lower ends of the outer protective shell 21 by screws. Both sets of outer protective shells 21 are fixedly mounted on the mounting base 1.

[0037] There are two sets of heat exchange shell assemblies 2 arranged on the left and right sides, both of which are mounted on the mounting base 1.

[0038] The lower ends of the two sets of mounting plates 23 located at the bottom are respectively fixedly installed with air extraction pipes 9.

[0039] An air inlet pipe 7 is fixedly installed on the upper left side of each of the two sets of inner protective shells 22. The two sets of air inlet pipes 7 are fixedly connected to the two sets of outer protective shells 21 respectively. An air outlet pipe 8 is fixedly installed on the lower right side of each of the two sets of inner protective shells 22. The two sets of air outlet pipes 8 are fixedly connected to the outer protective shell 21 respectively.

[0040] The air outlet pipe 8 located on the left side is connected to the air inlet pipe 7 located on the right side through a pipe, and the outlet at the upper end of the inner protective shell 22 on the left side is connected to the inlet at the lower end of the inner protective shell 22 on the right side through a pipe.

[0041] The heat exchange assembly 3 includes a first spiral blade 31, a heat exchange tube 32, a plug hole 33, a connecting plate 34, and a mounting hole 35. The first spiral blade 31 is disposed at the inner end of the inner protective shell 22. The outer edge of the first spiral blade 31 is welded and fixed to the inner sidewall of the inner protective shell 22. The first spiral blade 31 has multiple sets of plug holes 33 for inserting into the heat exchange tube 32. The heat exchange tube 32 has multiple sets of plug holes 33 respectively inserted into the plug holes 33 on the first spiral blade 31 and fixedly connected to the first spiral blade 31 by welding.

[0042] There are two sets of connecting plates 34, one on the top and one on the bottom. The connecting plates 34 have multiple sets of mounting holes 35 for inserting heat exchange tubes 32. The outer side wall of the connecting plates 34 is welded and fixed to the inner side wall of the inner protective shell 22.

[0043] A second spiral blade 4 is fixedly installed on the outer wall of the heat exchange tube 32. A phase change energy storage material 6 is provided at the inner end of the second spiral blade 4. An installation groove 5 is provided on the first spiral blade 31 to cooperate with the second spiral blade 4 during installation. The installation groove 5 is connected to the insertion hole 33.

[0044] In use, this invention introduces hot steam through the inlet pipe 7. The hot steam flows through the spiral path of the first spiral blade 31, increasing the steam's path within the inner protective shell 22 and making heat exchange more thorough. The medium to be heated enters through the inlet at the lower end of the inner protective shell 22 and exits through the outlet at the upper end of the inner protective shell 22. During heat exchange, the second spiral blade 4 increases the contact area with the steam, allowing heat to be transferred to the heat exchange tube 32, thus improving the efficiency of heat transfer. At the same time, a phase change energy storage material 6 is installed at the inner end of the second spiral blade 4 to buffer temperature fluctuations to a certain extent. When the steam temperature rises, the phase change material absorbs excess heat and undergoes a phase change; when the steam temperature decreases, the phase change material releases heat, thereby making the output temperature of the heat exchange device more stable and improving the stability of the production process.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The above description is merely an embodiment of the present utility model and is not intended to limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A steam surface heating device, comprising a mounting base (1), characterized in that: The mounting base (1) is equipped with a heat exchange shell assembly (2) for reducing heat loss. The heat exchange shell assembly (2) is equipped with a heat exchange component (3) for heat exchange. The heat exchange component (3) is equipped with a second spiral blade (4) for improving the heat exchange effect. The heat exchange shell assembly (2) is arranged in two sets on the left and right sides, both of which are installed on the mounting base (1); The heat exchange shell assembly (2) includes an outer protective shell (21), an inner protective shell (22), and a mounting plate (23). The inner protective shell (22) is disposed inside the outer protective shell (21). A set of mounting plates (23) is welded to both ends of the inner protective shell (22). The two sets of mounting plates (23) are fixedly connected to the upper and lower ends of the outer protective shell (21) by screws. Both sets of outer protective shells (21) are fixedly mounted on the mounting base (1). The lower end surfaces of the two sets of mounting plates (23) located at the lower end are respectively fixedly installed with air extraction pipes (9); An air inlet pipe (7) is fixedly installed on the upper left side of each of the two sets of inner protective shells (22), and the two sets of air inlet pipes (7) are fixedly connected to the two sets of outer protective shells (21). An air outlet pipe (8) is fixedly installed on the lower right side of each of the two sets of inner protective shells (22), and the two sets of air outlet pipes (8) are fixedly connected to the outer protective shells (21). The air outlet (8) on the left side and the air inlet (7) on the right side are connected by a pipe, and the outlet at the upper end of the inner protective shell (22) on the left side and the inlet at the lower end of the inner protective shell (22) on the right side are connected by a pipe. The heat exchange assembly (3) includes a first spiral blade (31), a heat exchange tube (32), a plug hole (33), a connecting plate (34), and a mounting hole (35). The first spiral blade (31) is disposed at the inner end of the inner protective shell (22). A second spiral blade (4) is fixedly installed on the outer wall of the heat exchange tube (32). A phase change energy storage material (6) is disposed at the inner end of the second spiral blade (4). An mounting groove (5) is opened on the first spiral blade (31) to cooperate with the second spiral blade (4) during installation. The mounting groove (5) is connected to the plug hole (33).

2. The steam surface heating device according to claim 1, characterized in that, The outer edge of the first helical blade (31) is welded and fixed to the inner wall of the inner protective shell (22). The first helical blade (31) has multiple sets of insertion holes (33) for inserting into the heat exchange tube (32). The heat exchange tube (32) has multiple sets of insertion holes (33) respectively inserted into the first helical blade (31) and fixedly connected to the first helical blade (31) by welding.

3. The steam surface heating device according to claim 2, characterized in that, The connecting plate (34) has two sets of upper and lower parts. The connecting plate (34) has multiple sets of mounting holes (35) for inserting heat exchange tubes (32). The outer side wall of the connecting plate (34) is welded and fixed to the inner side wall of the inner protective shell (22).

Images