Connecting assembly and heat exchange device
By setting multiple threaded holes and pressed pipe joints on the connecting assembly, the simultaneous docking of multiple heat exchange pipes is achieved, and the problem of welding limitations in the prior art is solved, and the practicality and safety of the heat exchange device are improved.
Patent Information
- Application Number
- CN202422362369.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In existing heat exchange devices, the connection between the heat exchange pipe and the connecting assembly cannot be welded, resulting in limited practicality and application range, and only a single heat exchange pipe can be connected.
A connection assembly is designed that includes multiple second threaded holes, allowing multiple heat exchange tubes to be connected simultaneously, and sealed by threaded connections and compressed pipe joints to avoid welding.
The simultaneous docking of multiple heat exchange pipes is realized, which improves practicality and application scope, meets relevant standards and ensures sealing and safety through the flow guide hole and leakage detection hole.
Smart Images
Figure CN223179398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchange, and particularly relates to a connecting component and a heat exchange device. Background Art
[0002] A heat exchange device is a device that realizes heat transfer between materials among two or more fluids at different temperatures. As a core component, there is one fluid inside the heat exchange tube and another fluid outside the heat exchange tube. The two fluids achieve contact heat exchange through the heat exchange tube, so that heat is transferred from the fluid with a higher temperature to the fluid with a lower temperature, and the fluid temperature reaches the specified index of the process to meet the needs of process conditions. Since the exhaust temperature of the hydrogen compressor is relatively high and needs to be cooled, the heat exchange device is widely used in hydrogen compressors. Currently, according to relevant standards, since hydrogen will cause hydrogen corrosion to the pipeline under high temperature and high pressure, the connection between the two ends of the heat exchange tube and the connecting component cannot adopt the welding process; and the existing connecting component can only realize single-tube docking with the heat exchange tube, reducing the practicability and application range. Therefore, there is an urgent need to propose a connecting component and a heat exchange device that can simultaneously realize the docking of multiple heat exchange tubes to improve the practicability and application range. Summary of the Utility Model
[0003] Aiming at the deficiencies existing in the prior art, the utility model publicly proposes a connecting component and a heat exchange device, which can solve or at least alleviate one or more of the above problems and other problems existing in the prior art.
[0004] The utility model discloses a connecting component, including a connecting body;
[0005] One end of the connecting body is provided with a first threaded hole for connecting an external pipeline or a docking head;
[0006] The other end of the connecting body is provided with a plurality of second threaded holes for connecting heat exchange tubes;
[0007] Each of the second threaded holes communicates with the first threaded hole.
[0008] Preferably, a first counterbore is provided at the bottom of the first threaded hole, and the aperture of the first counterbore is smaller than that of the first threaded hole.
[0009] Preferably, the first threaded hole and the first counterbore are transitioned through a first tapered surface.
[0010] Preferably, a second counterbore is provided at the bottom of the second threaded hole, and the aperture of the second counterbore is smaller than that of the second threaded hole; the second threaded hole and the second counterbore are transitioned through a second tapered surface.
[0011] Preferably, a plurality of diversion holes are arranged obliquely in the connection body. The number of the diversion holes is the same as that of the second threaded holes. One end of each diversion hole communicates with the first threaded hole, and the other end of each diversion hole communicates with the corresponding second threaded hole.
[0012] Preferably, the plurality of second threaded holes are circumferentially evenly distributed relative to the first threaded hole.
[0013] Preferably, a first leakage detection hole communicating with the first threaded hole is provided on the connection body.
[0014] Preferably, second leakage detection holes communicating with the corresponding second threaded holes are provided at positions corresponding to the second threaded holes on the connection body. The number of the second leakage detection holes is the same as that of the second threaded holes.
[0015] Preferably, a compression type pipe joint is arranged in the second threaded hole of the connection body.
[0016] On the other hand, the present utility model also discloses a heat exchange device, including the connection assembly as described above.
[0017] The present utility model has the following beneficial effects:
[0018] By arranging a plurality of second threaded holes on the connection body in this technical solution, multiple heat exchange tubes of the heat exchange device are respectively connected to the corresponding second threaded holes, so that the connection body can be docked with multiple heat exchange tubes simultaneously, improving the practicability and application range; and the welding between the heat exchange tube and the second threaded hole of the connection body is avoided, meeting the relevant standard regulations. Description of the Drawings
[0019] In order to more clearly illustrate the specific embodiments of the present disclosure, the drawings required for use in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts do not necessarily draw according to the actual ratio.
[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;
[0021] Figure 2 It is a schematic structural diagram of the cooperation between the connection body and the heat exchange tube in an embodiment of the present utility model;
[0022] Figure 3 It is a schematic structural diagram of the cooperation between the connection body and the docking head in an embodiment of the present utility model;
[0023] Figure 4 It is a schematic structural diagram of the heat exchange device in an embodiment of the present utility model.
[0024] Reference Signs:
[0025] 1 - Connection body;
[0026] 101 - First threaded hole, 102 - Second threaded hole, 103 - First counterbore, 104 - First conical surface, 105 - Second counterbore, 106 - Second conical surface, 107 - Diversion hole, 108 - First leak detection hole, 109 - Second leak detection hole;
[0027] 2 - Compression type pipe joint;
[0028] 3 - Heat exchange tube;
[0029] 4 - Pipe housing;
[0030] 41 - Water inlet, 42 - Water outlet;
[0031] 5 - Docking head;
[0032] 51 - O - ring seal groove, 52 - O - ring seal. Detailed implementation mode
[0033] Hereinafter, embodiments of the technical solution of the present disclosure will be described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure, and thus are only examples and cannot be used to limit the protection scope of the present disclosure.
[0034] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this utility model belongs.
[0035] In the description of this application, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of this utility model.
[0036] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of this utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0037] In this application, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0038] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0039] As Figure 1 and Figure 2 As shown, this embodiment provides a connection assembly, including a connection body 1; one end of the connection body 1 is provided with a first threaded hole 101 for connecting an external pipeline or a docking head 5; the other end of the connection body 1 is provided with a plurality of second threaded holes 102 for connecting heat exchange tubes 3; each second threaded hole 102 communicates with the first threaded hole 101.
[0040] This technical solution realizes the docking of the connection body 1 with multiple heat exchange tubes 3 simultaneously by providing a plurality of second threaded holes 102 on the connection body 1, and the heat exchange tubes 3 of the heat exchange device are respectively connected to the corresponding second threaded holes 102, thus improving the practicability and application range; and it eliminates the need for welding between the heat exchange tubes 3 and the second threaded holes 102 of the connection body 1. Meanwhile, the connection body 1 can divide the input hydrogen fluid into multiple strands and respectively transport them into the corresponding second threaded holes 102, and then introduce them into the corresponding heat exchange tubes 3 from the second threaded holes 102.
[0041] Among them, a second counterbore 105 is provided at the bottom of the second threaded hole 102, and the diameter of the second counterbore 105 is smaller than that of the second threaded hole 102; a second tapered surface 106 is provided between the second threaded hole 102 and the second counterbore 102 for transition. The cone angle of the second tapered surface 106 is 60°. Since the two ends of the heat exchange tube 3 will be subjected to tapered surface and thread machining, when the heat exchange tube 3 is connected to the second threaded hole 102 of the connection body 1, the tapered surface of the heat exchange tube 3 is combined with the second tapered surface 106 in the second threaded hole 102 to achieve sealing. In an embodiment, a compression type pipe joint 2 is provided in the second threaded hole 102 of the connection body 1. The heat exchange tube 3 is threadedly connected to the second threaded hole 102 of the connection body 1 through the compression type pipe joint 2.
[0042] A first counterbore 103 is provided at the bottom of the first threaded hole 101, and the diameter of the first counterbore 103 is smaller than that of the first threaded hole 101. In an embodiment, a first tapered surface 104 is provided between the first threaded hole 101 and the first counterbore 103 for transition. The cone angle of the first tapered surface 104 is 60°; the first threaded hole 101 of the connection body 1 is used to connect to the docking head 5, and a tapered surface is provided at the connection end of the docking head 5. When the docking head 5 is threadedly connected to the first threaded hole 101 of the connection body 1, the tapered surface of the docking head 5 is combined with the first tapered surface 104 in the first threaded hole 101 to achieve sealing. In another embodiment, as Figure 3 shown, the first threaded hole 101 of the connection body 1 is threadedly connected to the docking head 5. The front end of the docking head 5 is fitted with the first counterbore 103. An O-ring groove 51 is provided at the front end of the docking head 5, and an O-ring 52 is provided in the O-ring groove 51. After the front end of the docking head 5 is fitted with the first counterbore 103, sealing is achieved through the O-ring 52.
[0043] In addition, a plurality of diversion holes 107 are arranged obliquely in the connection body 1. The number of the diversion holes 107 is the same as that of the second threaded holes 102. One end of each diversion hole 107 communicates with the first threaded hole 101, and the other end of each diversion hole 107 communicates with the corresponding second threaded hole 102. Specifically, one end of each diversion hole 107 communicates with the first counterbore 103, and the other end of each diversion hole 107 communicates with the corresponding second counterbore 105. If the second threaded hole 102 is directly communicated with the first threaded hole 101, the aperture of the first threaded hole 101 needs to be increased. To ensure the overall strength of the connection body 1, the volume of the corresponding connection body 1 will increase. The design of the diversion holes 107 in the connection body 1 avoids the direct connection between the second threaded hole 102 and the first threaded hole 101, effectively reducing the volume of the connection body 1. In this embodiment, the plurality of second threaded holes 102 are circumferentially and uniformly distributed relative to the first threaded hole 102, which can ensure that the length of each diversion hole 107 is the same, so that the hydrogen fluid in the connection body 1 can be well converged in the first threaded hole 101, or the hydrogen fluid in the connection body 1 can be divided into multiple fluids with equivalent flow rates through the diversion holes 107 in the first threaded hole 101. At the same time, the plurality of second threaded holes 102 are circumferentially and uniformly distributed relative to the first threaded hole 102, so that the plurality of heat exchange tubes 3 are also circumferentially and uniformly distributed, which is convenient for the heat exchange tubes 3 to perform uniform heat exchange or cooling in the heat exchange device.
[0044] To facilitate the detection of whether there is air leakage or sealing problem in the connection body 1, a first leakage detection hole 108 communicating with the first threaded hole 101 is provided on the connection body 1. At the same time, second leakage detection holes 109 communicating with the corresponding second threaded holes 102 are provided at the positions corresponding to the second threaded holes 102 on the connection body 1. The number of the second leakage detection holes 109 is the same as that of the second threaded holes 102. The staff can use a third-party detection instrument to detect the sealing performance of the hydrogen gas flowing through the connection body 1 at the first leakage detection hole and the second leakage detection holes 109.
[0045] In one embodiment, as Figure 4 shown, a heat exchange device is further provided, which includes the connection assembly as described above, and further includes a pipeline housing 4 for heat exchanging or cooling the heat exchange tubes. Water inlets 41 and water outlets 42 are provided at both ends of the pipeline housing 4. Both ends of the plurality of heat exchange tubes 3 are connected to the corresponding second threaded holes 102 on the two connection bodies 1 through compression type pipe joints 2. The plurality of heat exchange tubes 3 are located inside the pipeline housing 4. Both ends of the heat exchange tubes 3 penetrate through both ends of the pipeline housing 4. The penetration parts of the heat exchange tubes 3 and the pipeline housing 4 are hermetically connected, and the connection bodies 1 are located outside the pipeline housing 4. The pipeline housing 4 introduces flowing cooling water through the water inlets 41 and the water outlets 42 to cool the heat exchange tubes 3 inside it, so as to heat exchange or cool the hydrogen gas in the heat exchange tubes 3.
[0046] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present disclosure, and they should all be covered by the scope of the claims and the description of the present disclosure.
Claims
1. A connecting component, characterized in that: Comprising a connecting body; One end of the connecting body is provided with a first threaded hole for connecting an external pipeline or a docking head; The other end of the connecting body is provided with a plurality of second threaded holes for connecting heat exchange tubes; Each of the second threaded holes communicates with the first threaded hole.
2. The connecting component according to claim 1, characterized in that: A first counterbore is provided at the bottom of the first threaded hole, and the aperture of the first counterbore is smaller than that of the first threaded hole.
3. The connecting component according to claim 2, characterized in that: The first threaded hole and the first counterbore are transitioned through a first tapered surface.
4. The connecting component according to claim 1, characterized in that: A second counterbore is provided at the bottom of the second threaded hole, and the aperture of the second counterbore is smaller than that of the second threaded hole; the second threaded hole and the second counterbore are transitioned through a second tapered surface.
5. The connecting component according to claim 1, characterized in that: A plurality of inclined diversion holes are provided in the connecting body, the number of the diversion holes is the same as that of the second threaded holes, one end of each diversion hole communicates with the first threaded hole, and the other end of each diversion hole communicates with the corresponding second threaded hole.
6. The connecting component according to claim 1, characterized in that: The plurality of second threaded holes are circumferentially evenly distributed relative to the first threaded hole.
7. The connecting component according to claim 1, characterized in that: A first leak detection hole communicating with the first threaded hole is provided on the connecting body.
8. The connecting component according to claim 1, characterized in that: Second leak detection holes communicating with the corresponding second threaded holes are provided on the connecting body at positions corresponding to the second threaded holes, and the number of the second leak detection holes is the same as that of the second threaded holes.
9. The connecting component according to claim 1, characterized in that: A compression type pipe joint is arranged in the second threaded hole of the connecting body.
10. A heat exchange device, characterized in that: Comprising the connecting component according to any one of claims 1-9.