Titanium tube heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and in particular to a titanium tube heat exchanger. The titanium tube heat exchanger includes a shell, a guide tube and a titanium tube. Among them, a containing chamber for the circulation of a heat conductor is arranged in the shell. The guide tube is arranged in the containing chamber, and a plurality of guide holes are arranged on the guide tube, and the guide holes connect the inner wall and the outer wall of the guide tube. The titanium tube is wound around the outer peripheral side of the guide tube, and the titanium tube and the outer wall of the guide tube form a first flow channel, and the first flow channel is connected to the guide hole; the titanium tube is filled with a refrigerant. The heat conductor entering the guide tube can flow from the guide hole to the first flow channel to exchange heat with the titanium tube wound on the guide tube. The titanium tube heat exchanger has a high heat exchange performance and can achieve the purpose of cost saving.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a titanium tube heat exchanger. Background Art

[0002] At present, titanium tube heat exchangers are commonly used in seawater desalination, freshwater aquaculture, seawater bathing pools, industrial electroplating, pharmaceutical engineering, marine engineering and other industries. They are favored for their good corrosion resistance and thermal conductivity. They are especially widely used in seawater desalination, chemical production, seafood farming and other environments with extremely high requirements for corrosion resistance.

[0003] Generally, a titanium tube heat exchanger has a shell side and a tube side, a heat conductor flows through the shell side, and a refrigerant flows through the tube side, and the heat exchange purpose is achieved by exchanging heat between the heat conductor in the shell side and the refrigerant in the tube side. In the prior art, there is almost no heat conductor flowing between the guide tube and the titanium tube of the titanium tube heat exchanger, which reduces the heat exchange performance of the titanium tube heat exchanger and increases the cost.

[0004] Therefore, it is urgent to design a titanium tube heat exchanger to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a titanium tube heat exchanger, improve the heat exchange performance of the titanium tube heat exchanger and save costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a titanium tube heat exchanger, comprising:

[0008] A shell, wherein a containing chamber for circulating a heat conductive agent is provided in the shell;

[0009] A flow guide tube, the flow guide tube is arranged in the accommodating chamber, and a plurality of flow guide holes are arranged on the flow guide tube, and the flow guide holes connect the inner wall and the outer wall of the flow guide tube;

[0010] A titanium tube, the titanium tube is wound around the outer circumference of the guide tube, and the titanium tube and the outer wall of the guide tube form a first flow channel, the first flow channel is connected to the guide hole; the titanium tube is filled with refrigerant;

[0011] The heat-conducting agent entering the guide tube can flow from the guide hole into the first flow channel to exchange heat with the titanium tube wound around the guide tube.

[0012] As an optional technical solution for a titanium tube heat exchanger, a plurality of guide holes are arranged at equal intervals along the circumferential direction of the guide tube.

[0013] As an optional technical solution for a titanium tube heat exchanger, the distance between two adjacent flow guide holes is set to between 20 mm and 40 mm.

[0014] As an optional technical solution for a titanium tube heat exchanger, along the axial direction of the guide tube, the guide holes are arranged in a sparse upper part and dense lower part structure.

[0015] As an optional technical solution of a titanium tube heat exchanger, the titanium tube heat exchanger further includes a support member, one end of which is connected to the inner wall of the shell, and the other end of which is configured to support the titanium tube.

[0016] As an optional technical solution for a titanium tube heat exchanger, the titanium tubes are arranged in multiple layers, the inner layer of the titanium tubes and the outer wall of the guide tube form the first flow channel, the second flow channel is formed between two adjacent layers of the titanium tubes, and the outer layer of the titanium tubes and the inner wall of the shell form a third flow channel.

[0017] As an optional technical solution for a titanium tube heat exchanger, the titanium tube heat exchanger further includes an upper end cover and a lower end cover, wherein the upper end cover is sealed to one end of the shell, and the lower end cover is sealed to the other end of the shell.

[0018] As an optional technical solution for the titanium tube heat exchanger, the upper end cover is provided with a first outlet, and the lower end cover is provided with a first inlet, and the first outlet and the first inlet are both connected to the accommodating chamber.

[0019] As an optional technical solution for the titanium tube heat exchanger, the upper end cover is provided with a second inlet and a second outlet, and the second inlet and the second outlet are both connected to the titanium tube.

[0020] As an optional technical solution for a titanium tube heat exchanger, a groove is provided on the side of the upper end cover facing the guide tube, an inner wall of the groove is provided with an internal thread, and one end of the guide tube is provided with an external thread, and the internal thread is threadably connected to the external thread.

[0021] The beneficial effects of the utility model include at least:

[0022] The utility model provides a titanium tube heat exchanger, which includes a shell, a guide tube and a titanium tube. Among them, a housing chamber for heat transfer medium is arranged in the shell. The guide tube is arranged in the housing chamber, and a plurality of guide holes are arranged on the guide tube, and the guide holes conduct the inner wall and the outer wall of the guide tube. The titanium tube is arranged around the outer peripheral side of the guide tube, and the titanium tube and the outer wall of the guide tube form a first flow channel, and the first flow channel is connected with the guide hole; the titanium tube is filled with refrigerant. In this way, when the heat transfer medium flows into the interior of the housing chamber, the heat transfer medium is divided into two parts: the first part of the heat transfer medium flows along the gap between the outer wall of the guide tube and the inner wall of the shell, so as to achieve the purpose of heat exchange between the heat transfer medium and the refrigerant in the titanium tube. The second part of the heat transfer medium flows to the interior of the guide tube, and then flows into the first flow channel through the guide hole to exchange heat with the titanium tube arranged on the guide tube, thereby enhancing the fluidity of the heat transfer medium in the first flow channel and improving the heat exchange performance of the titanium tube arranged on the guide tube. At the same time, the second part of the heat conductor can disturb the flow direction of the first part of the heat conductor, so that both the first part of the heat conductor and the second part of the heat conductor form turbulence. Since turbulent flow has a better heat transfer effect than laminar flow, it can further improve the heat transfer performance of the titanium tube heat exchanger and achieve the purpose of cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0024] Figure 1 It is a cross-sectional view of a titanium tube heat exchanger provided by an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0026] Reference numerals

[0027] 100, shell; 110, accommodating chamber; 200, guide tube; 210, guide hole; 300, titanium tube; 310, first flow channel; 320, second flow channel; 330, third flow channel; 400, upper end cover; 410, first outlet; 420, second inlet; 430, groove; 500, lower end cover; 510, first inlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] This embodiment provides a titanium tube heat exchanger, which can improve the heat exchange performance of the titanium tube heat exchanger and achieve the purpose of cost saving.

[0036] like Figure 1-Figure 2 As shown, the titanium tube heat exchanger mainly includes a shell 100, a guide tube 200 and a titanium tube 300. Among them, a housing chamber 110 for the circulation of a heat conductor is arranged in the shell 100. The guide tube 200 is arranged in the housing chamber 110, and a plurality of guide holes 210 are arranged on the guide tube 200, and the guide holes 210 conduct the inner wall and the outer wall of the guide tube 200. The titanium tube 300 is arranged around the outer peripheral side of the guide tube 200, and the titanium tube 300 and the outer wall of the guide tube 200 form a first flow channel 310, and the first flow channel 310 is connected with the guide hole 210; the titanium tube 300 is filled with a refrigerant. In this way, when the heat conductor flows into the interior of the housing chamber 110, the heat conductor is divided into two parts: the first part of the heat conductor flows along the gap between the outer wall of the guide tube 200 and the inner wall of the shell 100, so as to achieve the purpose of heat exchange between the heat conductor and the refrigerant in the titanium tube 300. The second part of the heat conductor flows into the interior of the guide tube 200, and then flows into the first flow channel 310 through the guide hole 210 to exchange heat with the titanium tube 300 wound on the guide tube 200, thereby enhancing the fluidity of the heat conductor in the first flow channel 310 and improving the heat exchange performance of the titanium tube 300 wound on the guide tube 200. At the same time, the second part of the heat conductor can disturb the flow direction of the first part of the heat conductor, so that both the first part of the heat conductor and the second part of the heat conductor form turbulent flow. Since turbulent flow has a better heat exchange effect than laminar flow, it can further improve the heat exchange performance of the titanium tube heat exchanger and achieve the purpose of cost saving.

[0037] It is understandable that in the field of heat exchangers, the heat conductor has a better heat transfer effect in a turbulent state than in a laminar state. This is because the particles inside the fluid (heat conductor) will mix violently during turbulent flow. This mixing enhances the heat transfer between the fluid and the heat transfer surface, causing the thermal boundary layer to become thinner, thereby increasing the heat transfer coefficient. In contrast, during laminar flow, the fluid flows in layers, and heat is mainly transferred by heat conduction. The thermal boundary layer is thicker and the heat transfer efficiency is lower.

[0038] Through the design of the flow guide hole 210, the heat conductor that originally flows in a laminar manner inside the shell 100 changes to flow in a turbulent manner, and simultaneously enhances the fluidity of the heat conductor between the outer wall of the flow guide tube 200 and the titanium tube 300 (the first flow channel 310), thereby improving the overall heat exchange performance of the titanium tube heat exchanger.

[0039] like Figure 1 As shown, in this embodiment, the titanium tube heat exchanger further includes an upper end cover 400 and a lower end cover 500, the upper end cover 400 is sealedly connected to one end of the shell 100, and the lower end cover 500 is sealedly connected to the other end of the shell 100. Exemplarily, the upper end cover 400 and the lower end cover 500 in this embodiment can be sealedly connected to the shell 100 by welding, thereby improving the sealing of the titanium tube heat exchanger and avoiding leakage accidents.

[0040] In some embodiments, the upper end cover 400, the shell 100 and the lower end cover 500 can all be made of engineering plastics, and the upper end cover 400 and the lower end cover 500 can be sealed and connected to the shell 100 by gluing.

[0041] Furthermore, if Figure 1 As shown, in this embodiment, the upper end cover 400 is provided with a first outlet 410, and the lower end cover 500 is provided with a first inlet 510, and the first outlet 410 and the first inlet 510 are both connected to the accommodating chamber 110. The first inlet 510 and the first outlet 410 are both used for the circulation of the heat conductor, so that the heat conductor can flow from the first inlet 510 into the accommodating chamber 110 to exchange heat with the refrigerant in the titanium tube 300, and finally flow out from the first outlet 410.

[0042] The first inlet 510 is located below the first outlet 410 , so that the heat conductor can fully contact the titanium tube 300 and exchange heat, avoiding the occurrence of a heat exchange dead zone and improving the heat exchange performance.

[0043] like Figure 1 As shown, in this embodiment, along the circumferential direction of the guide tube 200 (i.e. Figure 1 In the X-axis direction, it can be understood that due to Figure 1 is a cross-sectional view, so Figure 1The X-axis direction in the figure refers to the actual circumferential direction of the guide tube 200), and a plurality of guide holes 210 are arranged at equal intervals, thereby improving the uniformity of the flow of the second portion of the heat conductor, thereby improving the heat exchange performance.

[0044] For example, in this embodiment, the spacing between two adjacent guide holes 210 is set to be between 20 mm and 40 mm. For example, the spacing between two adjacent guide holes 210 can be set to values ​​such as 20 mm, 30 mm, and 40 mm, which will not be described in detail here.

[0045] Furthermore, in this embodiment, along the axial direction of the guide tube 200 (i.e. Figure 1 In other words, along the Y-axis direction, the guide holes 210 are arranged on the guide tube 200 in a sparse upper and dense lower structure. Each layer includes a plurality of guide holes 210, and the spacing between two adjacent layers of guide holes 210 gradually increases to form a sparse upper and dense lower arrangement. Specifically, if the guide holes 210 on the upper part of the guide tube 200 are arranged too densely, a large amount of heat transfer agent will flow directly from the upper position of the guide tube 200 to the first outlet 410, and then flow out to the outside of the shell 100, thereby forming a "short circuit" in the flow path and reducing the heat exchange effect. In the present embodiment, the flow guide holes 210 are arranged in a sparse upper and dense lower form, so that the heat conductor entering the accommodating chamber 110 from the first inlet 510 is then divided into a first portion of the heat conductor and a second portion of the heat conductor. The flow guide holes 210 are arranged in a sparse upper and dense lower form, which increases the flow rate of the second portion of the heat conductor flowing into the first flow channel 310, thereby enhancing the fluidity of the heat conductor in the first flow channel 310, improving the heat exchange effect, and allowing a large amount of the second portion of the heat conductor to be as far away from the first outlet 410 as possible, ensuring that the second portion of the heat conductor can have sufficient heat exchange time, thereby improving the heat exchange performance.

[0046] Optionally, in this embodiment, the shape and size of the guide hole 210 are not limited, and the operator can flexibly set it according to actual needs. For example, the guide hole 210 can be set to a circular, square or other shape. When the guide hole 210 is circular, its aperture can be set to between 1 mm and 2 mm.

[0047] Optionally, the guide tube 200 in this embodiment can be made of metal material or plastic material.

[0048] Optionally, the titanium tube 300 in this embodiment may also be replaced by a corrosion-resistant steel tube or copper tube.

[0049] Alternatively, if Figure 1-Figure 2As shown, the titanium tube 300 in this embodiment can be arranged in multiple layers, the inner titanium tube 300 and the outer wall of the guide tube 200 form a first flow channel 310, the second flow channel 320 is formed between two adjacent layers of titanium tubes 300, and the outer titanium tube 300 and the inner wall of the shell 100 form a third flow channel 330. The first flow channel 310 is used to flow the second part of the heat conductor, and the second flow channel 320 and the third flow channel 330 are used to flow the first part of the heat conductor. The arrangement of the multiple layers of titanium tubes 300 can improve the heat exchange performance of the titanium tube heat exchanger.

[0050] Optionally, the titanium tube 300 can be provided with one layer, two layers, three layers, etc., which will not be described in detail here.

[0051] In some embodiments, the titanium tube heat exchanger further includes a support member (not shown in the figure), one end of which is connected to the inner wall of the shell 100, and the other end of the support member is configured to support the titanium tube 300. The setting of the support member not only supports the titanium tube 300, improves the stability of the titanium tube 300, and avoids or reduces the phenomenon of displacement and shaking of the titanium tube 300; at the same time, the support member also has the function of turbulent flow of the heat conductor, so that the heat conductor forms turbulence, and improves the heat exchange performance of the titanium tube heat exchanger. The operator can flexibly set the number of supports according to actual needs, and no further details will be given here.

[0052] like Figure 1 As shown, the upper end cover 400 in this embodiment is also provided with a second inlet 420 and a second outlet (not shown in the figure), and the second inlet 420 and the second outlet are both connected to the titanium tube 300. The second inlet 420 and the second outlet are both used for the flow of refrigerant.

[0053] Optionally, the refrigerant in this embodiment can be set to R410A, R32, etc. commonly available on the market; the heat conductor can be set to liquid water. It is understandable that in order to ensure the safety of the titanium tube heat exchanger, the refrigerant in the titanium tube 300 is usually in a high-pressure state, and the heat conductor in the shell 100 is usually in a low-pressure state.

[0054] When the titanium tube heat exchanger is used as a condenser, heat is transferred from the high-temperature refrigerant to the heat conductor, and the temperature of the heat conductor is increased, thereby heating the liquid temperature; when the titanium tube heat exchanger is used as an evaporator, heat is transferred from the heat conductor to the refrigerant in the titanium tube 300, and the heat of the heat conductor is taken away, thereby reducing the liquid temperature.

[0055] like Figure 1 As shown, a groove 430 is provided on the side of the upper end cover 400 facing the guide tube 200, an inner wall of the groove 430 is provided with an internal thread, and an external thread is provided at one end of the guide tube 200, and the internal thread is threadedly connected to the external thread, thereby improving the stability and reliability of the connection between the guide tube 200 and the upper end cover 400 and avoiding shaking and instability of the two.

[0056] In some embodiments, the guide tube 200 and the groove 430 may also be connected by welding to improve the stability of the connection between the two.

[0057] Optionally, in some embodiments, the upper end cover 400 and the guide tube 200 are both made of engineering plastics, the outer wall of the guide tube 200 and the inner wall of the groove 430 are both smooth walls, and the guide tube 200 and the groove 430 can also be connected by gluing to improve the stability of the connection between the two.

[0058] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0059] Note that in the description of this specification, the reference terms "some embodiments", "other embodiments", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. Titanium tube heat exchanger, characterized in that: include: A housing (100), wherein a containing chamber (110) for circulating a heat conductive agent is provided in the housing (100); A flow guide tube (200), the flow guide tube (200) being arranged in the accommodating chamber (110), and the flow guide tube (200) being provided with a plurality of flow guide holes (210), the flow guide holes (210) connecting the inner wall and the outer wall of the flow guide tube (200); a titanium tube (300), the titanium tube (300) being arranged around the outer circumference of the guide tube (200), the titanium tube (300) and the outer wall of the guide tube (200) forming a first flow channel (310), the first flow channel (310) being connected to the guide hole (210); the titanium tube (300) being filled with a refrigerant; The heat-conducting agent that has entered the guide tube (200) can flow from the guide hole (210) into the first flow channel (310) to exchange heat with the titanium tube (300) wound around the guide tube (200).

2. The titanium tube heat exchanger according to claim 1, characterized in that: Along the circumferential direction of the guide tube (200), a plurality of guide holes (210) are arranged at equal intervals.

3. The titanium tube heat exchanger according to claim 2, characterized in that: The distance between two adjacent guide holes (210) is set to be between 20 mm and 40 mm.

4. The titanium tube heat exchanger according to claim 2, characterized in that: Along the axial direction of the guide tube (200), the guide holes (210) are arranged in a sparse upper part and dense lower part structure.

5. The titanium tube heat exchanger according to claim 1, characterized in that: The titanium tube heat exchanger further comprises a support member, one end of which is connected to the inner wall of the shell (100), and the other end of which is configured to support the titanium tube (300).

6. The titanium tube heat exchanger according to claim 1, characterized in that: The titanium tube (300) is arranged in multiple layers, the inner layer of the titanium tube (300) and the outer wall of the guide tube (200) form the first flow channel (310), the second flow channel (320) is formed between two adjacent layers of the titanium tube (300), and the outer layer of the titanium tube (300) and the inner wall of the shell (100) form a third flow channel (330).

7. The titanium tube heat exchanger according to claim 1, characterized in that: The titanium tube heat exchanger further comprises an upper end cover (400) and a lower end cover (500), wherein the upper end cover (400) is sealedly connected to one end of the shell (100), and the lower end cover (500) is sealedly connected to the other end of the shell (100).

8. The titanium tube heat exchanger according to claim 7, characterized in that: The upper end cover (400) is provided with a first outlet (410), and the lower end cover (500) is provided with a first inlet (510), and the first outlet (410) and the first inlet (510) are both in communication with the accommodating chamber (110).

9. The titanium tube heat exchanger according to claim 7, characterized in that: The upper end cover (400) is provided with a second inlet (420) and a second outlet, and the second inlet (420) and the second outlet are both in communication with the titanium tube (300).

10. The titanium tube heat exchanger according to claim 7, characterized in that: A groove (430) is provided on a side of the upper end cover (400) facing the guide tube (200), an inner wall of the groove (430) is provided with an internal thread, and an end of the guide tube (200) is provided with an external thread, the internal thread being threadably connected to the external thread.

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