NWS flag type DC unit

Abstract

The utility model discloses an NWS type flag type direct current unit, which comprises a cylinder body, an electric heating tube, a steel aluminum heat exchange tube, a flag type steel aluminum finned tube, a first annular baffle plate, an upper annular plate and a lower annular plate, the cylinder body comprises an inner cylinder, an outer cylinder, an upper tube plate and a lower tube plate, an accommodating cavity is formed in the cylinder body, the electric heating tube is arranged on the upper tube plate in a penetrating manner, the power connection end of the electric heating tube is positioned outside the accommodating cavity, and the lower end of the electric heating tube is positioned outside the accommodating cavity. The two ends of the steel-aluminum heat exchange tube are arranged on the upper tube plate and the lower tube plate in a penetrating mode respectively, the lower end of the flag type steel-aluminum finned tube is arranged on the lower tube plate in a penetrating mode, the upper end of the flag type steel-aluminum finned tube is communicated with the steel-aluminum heat exchange tube, the first annular baffle is arranged on the upper tube plate, the power connection end of the electric heating tube is wrapped in the first annular baffle, and the upper annular plate is arranged on the first annular baffle and the outer cylinder. A water outlet is further formed in the outer barrel and communicated with a port of the steel-aluminum heat exchange pipe, the lower annular plate is arranged at the bottom of the inner barrel and the bottom of the outer barrel and defines a water inlet pipeline, and a water inlet is further formed in the outer barrel and communicated with the port of the steel-aluminum heat exchange pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchange in generator units, specifically to an NWS type flag-type DC generator unit. Background Technology

[0002] Currently, traditional NWS (Non-Wave Radiator) heating units have several problems. First, their structure is complex, with internal secondary heat exchange tubes using stainless steel spiral coils. However, stainless steel has a much lower thermal conductivity than steel or aluminum, requiring a large amount of material to meet heat exchange requirements. Second, the extensive use of stainless steel spiral coils not only results in high consumption but also high costs. Third, the small diameter, long flow path, and multiple spirals of the stainless steel spiral coils used in traditional NWS heating units lead to a small flow cross-sectional area, high flow resistance, and consequently, low heat exchange efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an NWS type flag-type DC unit to solve the problems existing in the traditional NWS type heating unit.

[0004] Therefore, an embodiment of this utility model proposes an NWS type flag-type DC generator set.

[0005] According to an embodiment of this utility model, the NWS-type flag-type DC generator unit includes a cylinder, an electric heating tube, a steel-aluminum heat exchange tube, a first annular baffle, an upper annular plate, and a lower annular plate. The cylinder includes an inner cylinder, an outer cylinder, an upper tube sheet, and a lower tube sheet. The inner cylinder and the outer cylinder are coaxially sleeved together. The upper tube sheet is disposed at the top of the inner cylinder and the outer cylinder, and the lower tube sheet is disposed at the bottom of the inner cylinder and the outer cylinder. A receiving cavity is formed between the inner cylinder and the outer cylinder, and between the upper tube sheet and the lower tube sheet. The upper tube sheet is also provided with a liquid injection port communicating with the receiving cavity. The electric heating tube passes through the upper tube sheet, and the power receiving end of the electric heating tube is located outside the receiving cavity. The two ends of the steel-aluminum heat exchange tube pass through... The following are provided: The lower end of the flag-shaped steel-aluminum finned tube passes through the lower tube plate, and the upper end of the flag-shaped steel-aluminum finned tube communicates with the steel-aluminum heat exchange tube within the receiving cavity; a first annular baffle is provided on the upper tube plate, and the electrical terminal of the electric heating tube is enclosed inside the first annular baffle; an upper annular plate is provided on the first annular baffle and the outer cylinder, forming a water outlet pipe; a water outlet is also provided on the outer cylinder, and the water outlet communicates with the port of the steel-aluminum heat exchange tube; a lower annular plate is provided at the bottom of the inner cylinder and the outer cylinder, forming a water inlet pipe; a water inlet is also provided on the outer cylinder, and the water inlet communicates with the port of the steel-aluminum heat exchange tube.

[0006] In some embodiments, there are multiple electric heating tubes, which are spaced apart around the central axis of the outer cylinder.

[0007] In some embodiments, there are multiple steel-aluminum heat exchange tubes, which are spaced apart around the central axis of the outer cylinder.

[0008] In some embodiments, the NWS type flag DC generator set further includes: a connecting flange and a sealing gasket, wherein the connecting flange is disposed on the upper tube sheet and is used to fix the power connection end of the electric heating tube, and the sealing gasket is disposed on the upper tube sheet and is used to seal the gap between the electric heating tube, the connecting flange and the upper tube sheet.

[0009] In some embodiments, the NWS type flag DC generator unit further includes an external insulation layer, which is wrapped around the outer cylinder.

[0010] In some embodiments, the NWS type flag DC generator unit further includes a top insulation layer, which wraps around the upper tube sheet.

[0011] In some embodiments, the NWS type flag DC generator unit further includes a temperature test tube, which is disposed on the upper tube sheet.

[0012] In some embodiments, there are multiple temperature test tubes.

[0013] In some embodiments, the NWS type flag DC generator set further includes an expansion tank, and an external expansion interface is provided on the upper tube sheet, the expansion tank being connected to the external expansion interface.

[0014] In some embodiments, the two ends of the steel-aluminum heat exchange tube are respectively welded to the upper tube sheet and the lower tube sheet.

[0015] In some embodiments, the steel-aluminum heat exchange tube is arranged outside the electric heating tube, and the flag-shaped steel-aluminum finned tube is arranged in the gap between adjacent electric heating tubes.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the NWS type flag DC generator unit according to an embodiment of the present utility model.

[0019] Figure 2 This is a top view of the NWS type flag-type DC generator unit according to an embodiment of the present utility model.

[0020] Figure label:

[0021] The NWS type flag-type DC generator unit 100 includes a cylinder 10, an inner cylinder 11, an outer cylinder 12, a water outlet 121, a water inlet 122, an upper tube sheet 13, a liquid injection port 131, an external expansion port 132, a lower tube sheet 14, and a receiving cavity 15.

[0022] Electric heating tube 20, steel-aluminum heat exchange tube 30, flag-type steel-aluminum finned tube 31, first annular baffle 40, upper annular plate 41, lower annular plate 42, connecting flange 50, outer insulation layer 60, top insulation layer 61, temperature test tube 70. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to specific implementation schemes. However, those skilled in the art should understand that the implementation schemes described below are only for illustrating this utility model and should not be regarded as limiting the scope of this utility model. Based on the implementation schemes in this utility model, all other implementation schemes obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1-2 As shown, the NWS type flag-type DC generator set 100 according to an embodiment of the present invention includes a cylinder 10, an electric heating tube 20, a steel-aluminum heat exchange tube 30, a first annular baffle 40, an upper annular plate 41 and a lower annular plate 42.

[0025] The cylinder 10 includes an inner cylinder 11, an outer cylinder 12, an upper tube sheet 13, and a lower tube sheet 14. The inner cylinder 11 and the outer cylinder 12 are coaxially sleeved together. The upper tube sheet 13 is located at the top of the inner cylinder 11 and the outer cylinder 12, and the lower tube sheet 14 is located at the bottom of the inner cylinder 11 and the outer cylinder 12. A receiving cavity 15 is formed between the inner cylinder 11 and the outer cylinder 12, as well as between the upper tube sheet 13 and the lower tube sheet 14. The upper tube sheet 13 is also provided with an injection port 131 that communicates with the receiving cavity 15.

[0026] The electric heating tube 20 is installed on the upper tube sheet 13, and the power connection end of the electric heating tube 20 is located outside the receiving cavity 15; the two ends of the steel-aluminum heat exchange tube 30 are installed on the upper tube sheet 13 and the lower tube sheet 14 respectively.

[0027] The lower end of the flag-shaped steel-aluminum finned tube 31 is inserted into the lower tube sheet 14, and the upper end of the flag-shaped steel-aluminum finned tube 31 is connected to the steel-aluminum heat exchange tube 30 in the receiving cavity 15.

[0028] The first annular baffle 40 is disposed on the upper tube plate 13, and the electrical terminal of the electric heating tube 20 is wrapped inside the first annular baffle 40.

[0029] The upper annular plate 41 is set on the first annular baffle 40 and the outer cylinder 12, forming a water outlet pipe. The outer cylinder 12 is also provided with a water outlet 121, which is connected to the port of the steel-aluminum heat exchange tube 30.

[0030] The lower annular plate 42 is set at the bottom of the inner cylinder 11 and the outer cylinder 12 and forms a water inlet pipe. The outer cylinder 12 is also provided with a water inlet 122, which is connected to the port of the steel-aluminum heat exchange tube 30.

[0031] Understandably, the electric heating tube 20 can convert electrical energy into heat energy, that is, heat the NWS quantum liquid inside the containment cavity 15.

[0032] In some embodiments, there are multiple electric heating tubes 20, which are spaced apart around the central axis of the outer cylinder 12.

[0033] Understandably, the multiple electric heating tubes 20 effectively increase the heating power of the NWS type flag DC unit 100.

[0034] In some embodiments, there are multiple steel-aluminum heat exchange tubes 30, which are spaced apart around the central axis of the outer cylinder 12.

[0035] Understandably, the multiple steel-aluminum heat exchange tubes 30 effectively improve the heat exchange efficiency of the NWS type flag DC unit 100.

[0036] In some embodiments, the NWS type flag DC generator set 100 further includes: a connecting flange 50 and a sealing gasket (not shown). The connecting flange 50 is disposed on the upper tube sheet 13 and is used to fix the power connection end of the electric heating tube 20. The sealing gasket is disposed on the upper tube sheet 13 and is used to seal the gap between the electric heating tube 20, the connecting flange 50 and the upper tube sheet 13.

[0037] Understandably, the connecting flange 50 and the sealing gasket ensure the safe and stable conversion of electrical energy into heat energy.

[0038] In some embodiments, the NWS type flag DC generator set 100 further includes an outer insulation layer 60, which is wrapped around the outer cylinder 12.

[0039] In some embodiments, the NWS type flag DC generator set 100 further includes a top insulation layer 61, which is wrapped around the upper tube sheet 13.

[0040] In some embodiments, the NWS type flag DC generator set 100 further includes a temperature test tube 70, which is disposed on the upper tube sheet 13.

[0041] In some embodiments, there are multiple temperature test tubes.

[0042] In some embodiments, the NWS type flag DC generator set 100 further includes an expansion tank, and an external expansion interface 132 is provided on the upper tube sheet 13, with the expansion tank connected to the external expansion interface 132.

[0043] In some embodiments, the two ends of the steel-aluminum heat exchange tube 30 are welded to the upper tube sheet 13 and the lower tube sheet 14, respectively.

[0044] In some embodiments, the steel-aluminum heat exchange tube 30 is arranged outside the electric heating tube 20, and the flag-shaped steel-aluminum finned tube 31 is arranged in the gap between adjacent electric heating tubes 20.

[0045] It is understandable that the upper tube sheet 13 is a circular plate, in which multiple electric heating tubes 20 are arranged in a circle in the middle of the upper tube sheet 13, multiple steel-aluminum heat exchange tubes 30 are arranged in a circle at the edge of the upper tube sheet 13, and flag-shaped steel-aluminum finned tubes 31 are arranged in the gaps between adjacent electric heating tubes 20. This improves heat exchange efficiency and saves space.

[0046] In this invention, the steel-aluminum heat exchange tubes are arranged vertically. Water enters the unit from the inlet and then flows into the steel-aluminum heat exchange tubes. The water flows from bottom to top inside the steel-aluminum heat exchange tubes and then flows out from the outlet. This water circulation method is smooth and efficient, which is conducive to the full exchange of heat.

[0047] In this invention, a steel-aluminum heat exchange tube is arranged next to each electric heating tube, and multiple flag-shaped steel-aluminum finned tubes are arranged in the area between every two electric heating tubes. This arrangement structure allows the overall volume of the unit to be reduced by 1 / 2 compared to traditional units, and the material and manufacturing costs are also reduced by 1 / 2.

[0048] In this invention, the flag-shaped steel-aluminum finned tubes are arranged in a petal-like pattern, with a large number of flag-shaped steel-aluminum finned tubes placed in the upper middle part of the unit where the heat exchange medium temperature is the highest. By utilizing the flag-shaped tube structure, the arrangement of the heated components is made more reasonable, which greatly improves the heat exchange efficiency.

[0049] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In this utility model, 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," "on top of," and "over" 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.

[0053] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An NWS type flag-type DC generator set, characterized in that, include: A cylindrical body, comprising an inner cylinder, an outer cylinder, an upper tube sheet, and a lower tube sheet, wherein the inner cylinder and the outer cylinder are coaxially sleeved, the upper tube sheet is disposed at the top of the inner cylinder and the outer cylinder, and the lower tube sheet is disposed at the bottom of the inner cylinder and the outer cylinder, forming a receiving cavity between the inner cylinder and the outer cylinder, as well as between the upper tube sheet and the lower tube sheet, and the upper tube sheet is further provided with an injection port communicating with the receiving cavity; An electric heating element is provided, which is installed on the upper tube sheet, and the power receiving end of the electric heating element is located outside the receiving cavity; A steel-aluminum heat exchange tube, wherein the two ends of the steel-aluminum heat exchange tube are respectively inserted through the upper tube sheet and the lower tube sheet; A flag-shaped steel-aluminum finned tube, wherein the lower end of the flag-shaped steel-aluminum finned tube passes through the lower tube sheet, and the upper end of the flag-shaped steel-aluminum finned tube is connected to the steel-aluminum heat exchange tube in the receiving cavity. A first annular baffle is disposed on the upper tube sheet, and the electrical terminal of the electric heating tube is wrapped inside the first annular baffle. An upper annular plate is disposed on the first annular baffle and the outer cylinder, forming a water outlet pipe. The outer cylinder is also provided with a water outlet, which is connected to the port of the steel-aluminum heat exchange tube. A lower annular plate is disposed at the bottom of the inner cylinder and the outer cylinder, forming a water inlet pipe. The outer cylinder is also provided with a water inlet, which is connected to the port of the steel-aluminum heat exchange tube.

2. The NWS type flag-type DC generator set according to claim 1, characterized in that, There are multiple electric heating tubes, which are spaced apart around the central axis of the outer cylinder.

3. The NWS type flag-type DC generator unit according to claim 1, characterized in that, There are multiple steel-aluminum heat exchange tubes, which are spaced apart around the central axis of the outer cylinder.

4. The NWS type flag-type DC generator set according to claim 1, characterized in that, Also includes: A connecting flange and a sealing gasket are provided. The connecting flange is disposed on the upper tube sheet and is used to fix the power connection end of the electric heating tube. The sealing gasket is disposed on the upper tube sheet and is used to seal the gap between the electric heating tube, the connecting flange and the upper tube sheet.

5. The NWS type flag-type DC generator set according to claim 1, characterized in that, Also includes: An outer insulation layer is wrapped around the outer cylinder.

6. The NWS type flag-type DC generator set according to claim 1, characterized in that, Also includes: A top insulation layer is wrapped around the upper tube sheet.

7. The NWS type flag-type DC generator set according to claim 1, characterized in that, Also includes: A temperature test tube is inserted through the upper tube sheet.

8. The NWS type flag-type DC generator set according to claim 7, characterized in that, There are multiple temperature test tubes.

9. The NWS type flag-type DC generator set according to claim 1, characterized in that, Also includes: An expansion tank is provided on the upper tube sheet, and the expansion tank is connected to the external expansion interface.

10. The NWS type flag-type DC generator unit according to claim 1, characterized in that, The two ends of the steel-aluminum heat exchange tube are respectively welded to the upper tube sheet and the lower tube sheet.

11. The NWS type flag-type DC generator unit according to claim 2, characterized in that, The steel-aluminum heat exchange tube is arranged outside the electric heating tube, and the flag-shaped steel-aluminum finned tube is arranged in the gap between adjacent electric heating tubes.

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