Heat exchanger-integrated heating element

Abstract

To provide a heater having a simple structure and converting rotation energy into heat energy.SOLUTION: A heat exchanger built-in heater 1 includes: a sealed container 3 having a first stator 2 non-rotatably fixed to the inside; an oil 4 filled in the sealed container 3; a pump 5 rotatably arranged confronting the first stator 2 in the sealed container 3, and forming a spiral flow channel 6 of the oil 4 with the first stator 2; a power transmission shaft 7 non-rotatably supporting the pump 5 at one end 7a side, and connecting the other end 7b projecting from the sealed container 3 to a power source 8 of rotational power; bearing members 9a-9c supporting the power transmission shaft 7 rotatably relative to the sealed container 3; a heat exchanger 12 arranged inside the sealed container 3; and an external piping 13 connected to the heat exchanger 12 and extending to the outside of the sealed container 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a heating device comprising a sealed container in which a stator is fixed so as not to rotate, a fluid filled in the sealed container, a pump rotatably positioned in the sealed container opposite the stator and forming a helical flow path for the fluid between itself and the stator, a power transmission shaft that supports the pump so as not to rotate at one end and connects the other end, which protrudes from the sealed container, to a power source for rotational power, and a bearing member that rotatably supports the power transmission shaft in the sealed container, wherein the rotational power of the power source rotates the pump and agitates the fluid in the sealed container, thereby converting rotational energy into thermal energy. [Background technology]

[0002] It is known, as disclosed in Patent Document 1, that such a heater can be connected to a power source such as a wind turbine or an axial flow water turbine to agitate a fluid filled in a sealed container, and the fluid heated by the agitation can be extracted to the outside as thermal energy. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Public Gazette No. 58-49005 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] The invention disclosed in Patent Document 1 above is configured such that a power transmission shaft 3, which supports a pump 5 at one end, is rotated by the rotational power of a power source, and water as a fluid is injected from the inlet 1c of a sealed container. The water accelerated by the blades of the pump 5 collides with the blades 2a of the stator 2 in a spiral flow path, and this collision converts the rotational energy of the pump 5 into thermal energy, heating the water. The heated water flows out to the back side of the pump 5 inside the sealed container through the gap between the stator 2 and the pump 5 due to centrifugal force and is discharged from the outlet 8, thereby extracting the rotational energy as thermal energy to the outside. However, the seal structure to prevent the pressurized water inside the sealed container from flowing out of the power transmission shaft 3 to the bearing is complex, which increases the number of parts and leads to increased costs, and there are also problems with thermal efficiency because the heated water is discharged directly to the outside.

[0005] This invention was proposed in view of the above, and aims to provide a compact heating element with a simplified sealing structure, reduced number of parts, and excellent thermal efficiency. [Means for solving the problem]

[0006] To achieve the above objective, the present invention is characterized by comprising: a sealed container in which a first stator is fixed so as not to rotate inside; oil filled in the sealed container; a pump rotatably disposed in the sealed container opposite to the first stator and forming a helical flow path for the oil between itself and the first stator; a power transmission shaft that non-rotatably supports the pump at one end and connects the other end protruding from the sealed container to a power source for rotational power; a bearing member that rotatably supports the power transmission shaft in the sealed container; a heat exchanger disposed in the sealed container; and external piping connected to the heat exchanger and extending to the outside of the sealed container.

[0007] Furthermore, in addition to the first feature, the present invention is characterized in that a second stator having a hub fixed to the sealed container is arranged between the pump and the first stator, in the portion of the spiral flow path downstream of the first stator.

[0008] Furthermore, in addition to the first or second feature, the present invention has a third feature in which the heat exchanger is positioned between the pump and the wall surface of the sealed container.

[0009] Furthermore, in addition to the first or second feature, the present invention has a fourth feature in which the power transmission shaft is arranged parallel to the direction of gravity, and the heat exchanger is located between the back of the pump and the ceiling wall of the sealed container.

[0010] Furthermore, in addition to the first or second feature, the present invention has a fifth feature in which at least a portion of the heat exchanger is positioned to overlap with the helical flow path in the radial direction.

[0011] Furthermore, in addition to the first or second features, the present invention further comprises a circulation pump for circulating the heat transfer medium in the heat exchanger between the heat exchanger and external equipment located outside the sealed container, a first mechanical power transmission member fixed to the power transmission shaft outside the sealed container, and a second mechanical power transmission member fixed to the input shaft of the circulation pump outside the sealed container, wherein the circulation pump is driven by engaging the first mechanical power transmission member and the second mechanical power transmission member.

[0012] In addition to the sixth feature, the present invention also has a seventh feature in which the circulation pump is positioned between the sealed container and the second mechanical power transmission member. [Effects of the Invention]

[0013] According to the first feature of the present invention, a heater comprising a sealed container in which a first stator is fixed so as not to rotate, oil filled in the sealed container, a pump rotatably positioned in the sealed container opposite the first stator and forming a helical flow path for the oil between it and the first stator, a power transmission shaft that non-rotatably supports the pump at one end and connects the other end protruding from the sealed container to a power source for rotational power, and a bearing member that rotatably supports the power transmission shaft in the sealed container, is further equipped with a heat exchanger positioned inside the sealed container and external piping connected to the heat exchanger and extending to the outside of the sealed container. As a result, the oil, which acts as a heating element, and a heat transfer medium such as antifreeze can be easily separated inside the heater. This allows the oil, which acts as a heating element, to always remain inside the heater, thus enabling a compact overall device while preventing oil deterioration. Moreover, the heat generated by the oil is rapidly released to the outside via the heat transfer medium in the heat exchanger, allowing for efficient heat exchange.

[0014] Furthermore, according to a second feature of the present invention, a second stator having a hub fixed to a sealed container is arranged between the pump and the first stator, in the portion of the spiral flow path downstream of the first stator. Therefore, even when the power source is changed, the characteristics of the heater can be made to match the characteristics of the changed power source simply by replacing the second stator, so that the heater can always be operated at maximum efficiency according to the characteristics of the power source.

[0015] Furthermore, according to a third feature of the present invention, since the heat exchanger is positioned between the pump and the wall of the sealed container, the heat generated in the helical flow path can be efficiently transferred to the heat exchanger, thereby improving the heat exchange efficiency.

[0016] Furthermore, according to a fourth feature of the present invention, since the power transmission shaft is arranged parallel to the direction of gravity and the heat exchanger is located between the back of the pump and the ceiling wall of the sealed container, heat convection can be effectively utilized, enabling efficient heat exchange.

[0017] According to the fifth feature of the present invention, at least a part of the heat exchanger is arranged at a position overlapping with the radial spiral flow path, so that the heat generated in the spiral flow path can be efficiently transmitted to the heat exchanger, and the heat exchange efficiency can be improved.

[0018] According to the sixth feature of the present invention, a circulation pump for circulating the heat medium in the heat exchanger between an external device arranged outside the sealed container, a first mechanical power transmission member fixed to the power transmission shaft outside the sealed container, and a second mechanical power transmission member fixed to the input shaft of the circulation pump outside the sealed container are further provided. By engaging the first mechanical power transmission member and the second mechanical power transmission member, the circulation pump is driven. Therefore, without requiring external power, the circulation pump can be driven only by the power of the drive source transmitted to the power transmission shaft, and power reduction and efficiency improvement can be achieved.

[0019] Furthermore, according to the seventh feature of the present invention, the circulation pump is arranged between the sealed container and the second mechanical power transmission member. Therefore, even though the circulation pump is provided, the entire device can be made more compact, the piping from the heat exchanger to the circulation pump can be shortened, and the influence of heat dissipation can be reduced.

Brief Description of the Drawings

[0020] [Figure 1] FIG. 1 is a longitudinal sectional view schematically showing the configuration when the heat exchanger built-in heater of the embodiment is applied to a vertical axis windmill. [Figure 2] FIG. 2 is an enlarged view of part A in FIG. 1. [Figure 3] FIG. 3 is a plan view of only the heat exchanger of the embodiment as viewed from the direction of arrow 3-3 in FIG. 2. [Figure 4] FIG. 4 is a plan view of the mechanical power transmission member of the embodiment as viewed from the direction of arrow 4-4 in FIG. 2.

Embodiments of the Invention

[0021] Embodiments of the present invention will be described below based on the accompanying drawings.

[0022] As shown in Figure 1 and Figure 2, which is an enlarged view of part A in Figure 1, the heat exchanger-integrated heater 1 of this embodiment comprises an annular first stator 2 having a plurality of blades 2a arranged in the circumferential direction, a sealed container 3 in which the first stator 2 is fixed so as not to rotate, oil 4 filled in the sealed container 3, an annular pump 5 having a plurality of blades 5a facing the blades 2a of the first stator 2 and rotatably arranged in the sealed container 3, forming a spiral flow path 6 of oil 4 between itself and the first stator 2, a power transmission shaft 7 that supports the pump 5 so as not to rotate at one end 7a and connects the other end 7b protruding from the sealed container 3 to a wind turbine 8 as a power source for rotational power, and bearing members 9a to 9c that rotatably support the power transmission shaft 7 in the sealed container 3.

[0023] The sealed container 3 is fixedly positioned in a building (not shown) or the like, with the power transmission shaft 7 facing the direction of gravity, and is sealed by the joining of the upper half 3a and the lower half 3b. A rolling bearing 9a and a sealing member 10 are arranged in the center of the upper half 3a of the sealed container 3 as bearing members. In this embodiment, the first stator 2 is formed as part of the sealed container 3 in the lower half 3b of the sealed container 3, and a receiving surface 3c for receiving the power transmission shaft 7 is formed in the center of the lower half 3b by cutting out the hub 2b of the first stator 2, and a rolling bearing 9b is also arranged between the lower end of the power transmission shaft 7 and the receiving surface 3c. However, the first stator 2 may be formed as a separate member from the sealed container 3 and fixed to the sealed container 3 later.

[0024] An annular second stator 11 is positioned on the hub 2b of the first stator 2, having a hub 11b that is detachably fixed to the hub 2b. The second stator 11 has a plurality of blades 11a extending radially outward from the outer circumference of the hub 11b, and these blades 11a are positioned between the blades 2a of the first stator 2 and the blades 5a of the pump 5. On the other hand, the hub 2b of the first stator 2 has a cylindrical portion 2c that surrounds the power transmission shaft 7 so as to be rotatable relative to it, and an inward-facing cylindrical portion 11c formed on the upper inner circumference of the hub 11b of the second stator 11 is detachably fitted into a stepped portion 2d formed by reducing the diameter radially inward at the upper end of the cylindrical portion 2c. Multiple outward-facing teeth 2e are formed on the outer circumferential surface of the cylindrical portion 2c, which is continuous with the stepped portion 2d of the first stator 2, and multiple inward-facing teeth 11d, which protrude radially inward from the lower surface of the cylindrical portion 11c of the hub 11b, are removably fitted to these outward-facing teeth 2e. By replacing or removing this second stator 11, it is possible to change the pump capacity of the heater, as will be described later.

[0025] Furthermore, the hub 5b of the pump 5 is spline-fitted to the power transmission shaft 7 in a way that prevents rotation, and a rolling bearing 9c is positioned between the lower surface of the hub 5b of the pump 5 and the upper surface of the hub 11b of the second stator 11 to prevent the power transmission shaft 7 from descending.

[0026] Between the inner wall surface of the sealed container 3 and the pump 5, and in this embodiment between the ceiling wall of the upper half 3a of the sealed container 3 and the back surface 5c of the pump 5, a heat exchanger 12, formed of metal tubing and through which a heat transfer medium flows, is arranged in a spiral shape around the power transmission shaft 7 in a plane perpendicular to the power transmission shaft 7, as shown in Figure 3, and at least a portion of it overlaps with the spiral flow path 6 of the oil 4 in the radial direction. Also, on the upper surface of the sealed container 3, there are mounting parts for external piping 13 that are connected to the inlet 12a side and outlet 12b side of the heat exchanger 12 and extend to the outside of the sealed container 3, and a circulation pump 15 interposed in the middle of the external piping 13 to circulate the heat transfer medium inside the heat exchanger 12 between it and external equipment 14.

[0027] A first gear member 16a, which rotates integrally with the power transmission shaft 7, is fixed to the portion of the power transmission shaft 7 that protrudes from the sealed container 3. As shown in Figure 4, a second gear member 16b, which meshes with the first gear member 16a, is fixed to the input shaft 15a of the circulation pump 15 that protrudes from the upper surface of the circulation pump 15. The rotation of the power transmission shaft 7 drives the circulation pump 15, circulating the heat transfer medium in the heat exchanger 12 between it and the external equipment 14. In this embodiment, the first and second gear members 16a and 16b are used as the first and second mechanical power transmission members that transmit the rotation from the power transmission shaft 7 to the input shaft 15a of the circulation pump 15. However, the first and second mechanical power transmission members are not limited to these, and for example, a chain, belt, etc., can also be used.

[0028] The external device 14 that circulates the heat transfer medium may be a heat engine that converts the thermal energy of a heat radiator or heat transfer medium into mechanical energy such as rotational energy, or it may be a heat storage device that stores the thermal energy of the heat transfer medium. For example, in a system that converts the rotational energy of a wind turbine 8 into electrical energy and stores the generated electrical energy, it is essential to use an expensive battery. However, a heat storage device is cheaper than a battery and there is no concern about discharge, so storing rotational energy as thermal energy in a heat storage device is an effective energy storage method.

[0029] In this embodiment, the power transmission shaft 7 extending upward in the direction of gravity from the sealed container 3 is directly connected to the vertical axis 8a of the vertical-axis type wind turbine 8. However, the direction in which the power transmission shaft 7 extends may be horizontal, and the shape of the wind turbine 8 is not particularly limited to a vertical axis type. Furthermore, as a power source, any device that generates rotational power other than a wind turbine, such as a water turbine, may be used.

[0030] In the heater 1 of this embodiment, as configured in this way, the power transmission shaft 7 connected to the wind turbine 8 rotates with the power of the wind turbine 8, causing a spiral flow of oil 4 between the blade 5a of the pump 5 and the blades 2a and 11a of the first and second stators 2 and 11, similar to that of a normal fluid coupling. However, unlike a normal fluid coupling, the blades 2a and 11a of the first and second stators 2 and 11 are fixed to a sealed container 3 permanently located in a building or the like so that the oil 4 is agitated between the blade 5a of the pump 5 and the blades 2a and 11a of the first and second stators 2 and 11, generating heat due to fluid friction and raising the temperature of the oil 4. The heated oil 4 is cooled in a heat exchanger 12 located between the back surface 5c of the pump 5 and the ceiling wall of the upper half 3a of the sealed container 3, while the heat transfer medium in the heat exchanger 12 is sent to an external device 14 by a circulation pump 15 driven by the power transmission shaft 7, allowing for effective heat exchange with the external device 14.

[0031] Furthermore, when converting wind energy into mechanical power using a wind turbine, it is desirable to maximize the power coefficient Cp, which is the conversion efficiency. The power coefficient Cp of the wind turbine 8 changes parabolic in accordance with the peripheral speed ratio λ, which is the ratio (Vr / V) of the tip velocity Vr of the wind turbine blade 8b. Therefore, there exists a peripheral speed ratio λ in the middle of this change that maximizes the power coefficient Cp. Thus, when connecting the heater 1 to the wind turbine 8, the wind turbine efficiency can be maximized by adjusting the pump capacity of the heater 1 to obtain the peripheral speed ratio λ that maximizes the power coefficient Cp of the wind turbine 8.

[0032] In conventional wind turbines, where the rotational energy of the wind turbine 8 is converted into electrical energy by a generator, the wind turbine rotation speed N changes when the wind speed V changes, which in turn changes the peripheral speed ratio λ. Therefore, even if a peripheral speed ratio λ that maximizes the power coefficient Cp is obtained at a specific wind speed V, it is not possible to obtain a peripheral speed ratio λ that maximizes the power coefficient Cp when the wind speed V changes. For this reason, it was necessary to address changes in wind speed V by pitch control, adding a transmission, or controlling the load of the generator. However, in the present invention, the rotational energy of the wind turbine 8 is converted into thermal energy by a heater 1 using a fluid coupling, so that a peripheral speed ratio λ that maximizes the power coefficient Cp can always be obtained even when the wind speed V changes. The reason for this is explained below.

[0033] The output E of a wind turbine is given by, where Cp is the power coefficient, ρ is the air density, A is the pressure-receiving area of ​​the blade, and V is the wind speed. E = Cp × (1 / 2) × ρ × A × V 3 ...(1) It can be expressed as follows. Here, if d is the diameter of the rotor blade, λ is the circumferential velocity ratio, Vr is the tip velocity of the wind turbine blade, and N is the rotational speed of the wind turbine, V = Vr / λ Vr = πdN / 60 Therefore, V = πdN / 60λ Since it can be expressed as, equation (1) is, E=Cp×(1 / 2)×ρ×A×(πdN / 60λ) 3 ...(2) It can be transformed as follows. Furthermore, if we let the output torque of the wind turbine be T, then the output torque T is, T = 60E / 2πN·····(3) Since it can be expressed as such, from equations (2) and (3), the relationship between T and N is, T=60×(Cp×(1 / 2)×ρ×A×(πdN / 60λ) 3 / 2πN ={(Cp×ρ×A×π 2 d 3 ) / (4×60 2 ×λ 3 )} × N 2 ...(4) It can be expressed as follows.

[0034] (4) The equation (Cp×ρ×A×π 2 d 3 ) / (4×60 2 ×λ 3 ) indicates that if it is constant, the output torque T of the windmill 8 is proportional to the square of the rotational speed N of the windmill 8. Conversely, if the output torque T of the windmill 8 is made proportional to the square of the rotational speed N of the windmill, then (Cp×ρ×A×π 2 d 3 ) / (4×60 2 ×λ 3 ) becomes a proportionality constant and is fixed to a constant value, that is, if T∝N 2 , it also shows that the corresponding power coefficient Cp and tip speed ratio λ can always be fixed to constant values regardless of the wind speed V. However, as is well known, the input torque of the fluid coupling is proportional to the square of the rotational speed N. Therefore, by using the fluid coupling as the heater 1, the output torque T of the windmill 8 connected to the power transmission shaft 7 of the heater 1 can be made proportional to the square of the rotational speed N of the windmill 8. Thus, by using the fluid coupling as the heater 1 and adjusting the pump capacity of the heater 1 so as to obtain the tip speed ratio λ at which the power coefficient Cp of the windmill 8 is maximized, it becomes possible to obtain the tip speed ratio λ at which the power coefficient Cp is always maximized even when the wind speed V changes.

[0035] In addition, when applying the heater 1 of the present embodiment to windmills 8 with different characteristics, it is conceivable that the pump capacity of the heater 1 does not match the characteristics of the windmill, resulting in the inability to obtain the tip speed ratio λ at which the power coefficient Cp of the windmill is maximized. However, in the present embodiment, since the second stator 11 having the hub 11b fixed to the sealed container 3 is removably arranged at the downstream side portion of the first stator 2 in the spiral flow path 6 between the pump 5 and the first stator 2, it becomes possible to easily change the pump capacity of the heater 1 simply by replacing or removing the second stator 11, and thus it becomes possible to provide the heater 1 optimized for various windmills.

[0036] Next, the operation of the embodiment of the present invention having the above configuration will be described.

[0037] In this embodiment, the heater 1 comprises a sealed container 3 in which a first stator 2 is fixed so as not to rotate, oil 4 filled in the sealed container 3, a pump 5 rotatably positioned in the sealed container 3 opposite the first stator 2 and forming a helical flow path 6 of oil 4 between itself and the first stator 2, a power transmission shaft 7 that supports the pump 5 so as not to rotate at one end 7a and connects the other end 7b protruding from the sealed container 3 to a power source 8 for rotational power, and bearing members 9a to 9c that rotatably support the power transmission shaft 7 in the sealed container 3. The heater 1 also comprises a heat exchanger 12 positioned inside the sealed container 3 and external piping 13 connected to the heat exchanger 12 and extending to the outside of the sealed container 3. As a result, the oil 4, which acts as a heating element, and a heat transfer medium such as antifreeze can be easily separated inside the heater 1. This allows the oil 4, which acts as a heating element, to always remain inside the heater 1, thus preventing deterioration of the oil 4 while making the entire device more compact. Furthermore, the heat generated by the oil 4 is quickly released to the outside through the heat transfer medium in the heat exchanger 12, enabling efficient heat exchange.

[0038] Furthermore, since a second stator 11 having a hub 11b fixed to the sealed container 3 is positioned between the pump 5 and the first stator 2 in the spiral flow path 6 on the downstream side of the first stator 2, even when the power source 8 is changed, the characteristics of the heater 1 can be made to match the characteristics of the changed power source 8 simply by replacing the second stator 11, so that the heater 1 can always be operated at maximum efficiency according to the characteristics of the power source 8.

[0039] Furthermore, since the heat exchanger 12 is positioned between the pump 5 and the wall of the sealed container 3, the heat generated in the spiral flow path 6 can be efficiently transferred to the heat exchanger 12, thereby improving the heat exchange efficiency.

[0040] Furthermore, since the power transmission shaft 7 is positioned parallel to the direction of gravity and the heat exchanger 12 is located between the back of the pump 5 and the ceiling wall of the sealed container 3, heat convection can be effectively utilized, enabling efficient heat exchange.

[0041] Furthermore, since at least a portion of the heat exchanger 12 is positioned to overlap with the helical flow path 6 in the radial direction, heat generated in the helical flow path 6 can be efficiently transferred to the heat exchanger 12, thereby improving the heat exchange efficiency.

[0042] Furthermore, the system includes a circulation pump 15 for circulating the heat transfer medium in the heat exchanger 12 between the heat exchanger 12 and external equipment 14 located outside the sealed container 3, a first mechanical power transmission member 16a fixed to the power transmission shaft 7 outside the sealed container 3, and a second mechanical power transmission member 16b fixed to the input shaft 15a of the circulation pump 15 outside the sealed container 3. The circulation pump 15 is driven by engaging the first mechanical power transmission member 16a and the second mechanical power transmission member 16b. As a result, the circulation pump 15 can be driven solely by the power of the drive source 8 transmitted to the power transmission shaft 7 without requiring external power, thereby reducing power consumption and improving efficiency.

[0043] Furthermore, since the circulation pump 15 is positioned between the sealed container 3 and the second mechanical power transmission member 16b, the overall size of the device can be made more compact even with the circulation pump 15, and the external piping 13 from the heat exchanger 12 to the circulation pump 15 can also be shortened, reducing the impact of heat dissipation.

[0044] Although embodiments of the present invention have been described above, various design modifications can be made to the present invention without departing from its essence. For example, as mentioned above, the second stator 11 may be omitted, and the direction in which the power transmission shaft 7 extends may be horizontal. Furthermore, the power source is not limited to a wind turbine, and various shapes of heat exchangers can be selected. [Explanation of Symbols]

[0045] 1. Heat exchanger-integrated heating element 2. First stat 3. Airtight container 4. Oil 5. Pump 5c...Back 6...Spiral flow path 7. Power transmission shaft 7a...One end 7b...Other end 8. Wind turbines as a power source 9a~9c...Rolling bearings as bearing components 11...Second Status 11b ··Hub 12...heat exchanger 13. External Piping 14...External equipment 15. Circulation pump 15a ··Input axis 16a. First gear member as a first mechanical power transmission member 16b. Second gear member as a second mechanical power transmission member

Claims

1. A sealed container with a first stator fixed inside in a non-rotatable manner, The oil filled in the sealed container, A pump is rotatably positioned within the sealed container opposite the first stator, and forms a helical flow path for the oil between itself and the first stator. A power transmission shaft is provided, which supports the pump so as not to rotate at one end and connects the other end, which protrudes from the sealed container, to a power source for rotational power. A bearing member that rotatably supports the power transmission shaft in the sealed container, A heat exchanger placed inside the sealed container, External piping connected to the heat exchanger and extending to the outside of the sealed container A heat exchanger-integrated heating element characterized by being equipped with the following features.

2. A heat exchanger-integrated heating element according to claim 1, A heat exchanger-integrated heating element is characterized in that a second stator, having a hub fixed to the sealed container, is positioned between the pump and the first stator in the portion of the spiral flow path downstream of the first stator.

3. A heat exchanger-integrated heating element according to claim 1 or claim 2, The heat exchanger is characterized in that it is positioned between the pump and the wall surface of the sealed container.

4. A heat exchanger-integrated heating element according to claim 1 or claim 2, A heat exchanger-integrated heating element is characterized in that the power transmission shaft is arranged parallel to the direction of gravity, and the heat exchanger is positioned between the back of the pump and the ceiling wall of the sealed container.

5. A heat exchanger-integrated heating element according to claim 1 or claim 2, A heat exchanger-integrated heating element is characterized in that at least a portion of the heat exchanger is positioned to overlap with the helical flow path in the radial direction.

6. A heat exchanger-integrated heating element according to claim 1 or claim 2, A heat exchanger-integrated heater further comprises a circulation pump for circulating the heat transfer medium in the heat exchanger between the heat exchanger and external equipment located outside the sealed container, a first mechanical power transmission member fixed to the power transmission shaft outside the sealed container, and a second mechanical power transmission member fixed to the input shaft of the circulation pump outside the sealed container, wherein the circulation pump is driven by engaging the first mechanical power transmission member and the second mechanical power transmission member.

7. A heat exchanger-integrated heating element according to claim 6, The heat exchanger-integrated heating element is characterized in that the circulation pump is positioned between the sealed container and the second mechanical power transmission member.

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