Air temperature type vaporizer capable of absorbing liquid and rapidly exchanging heat

Abstract

An air temperature type vaporizer capable of absorbing liquid and rapidly exchanging heat comprises at least two fixing plates. The finned tubes are installed between the two fixing plates, and every two adjacent finned tubes are communicated through the corresponding connecting tube; the inlet pipe is connected with an inlet of the fin pipe on the rightmost side; the outlet pipe is connected with an outlet of the finned pipe on the leftmost side; the two ends of the fixing shaft are connected to the two fixing plates respectively, the fixing shaft is arranged in the finned tubes of the second tube set, the fixing shaft and the finned tubes in the second tube set are coaxially arranged, and the surface of the fixing shaft extends in the direction of the inner walls of the finned tubes to form a plurality of connecting columns; and the liquid absorption material is arranged between the inner wall of the finned tube and the arc-shaped baffle. Heat brought by bubble breakage is brought to the centers of the finned tubes through the inner walls of the finned tubes, so that the center liquid can also absorb the heat, rapid heat exchange between the centers of the finned tubes and the inner walls of the finned tubes is achieved, the overall gasification temperature and efficiency are improved, and the situation that the finned tubes of the second tube set are frozen can also be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vaporizers, in particular to an air-cooled vaporizer with rapid liquid absorption and heat exchange. Background Art

[0002] Industrial vaporizers are usually used to convert liquid substances into gases for use in industrial processes. These vaporizers play an important role in multiple fields, including energy production, chemical manufacturing, and environmental protection. In traditional vaporizers, liquid is input into finned tubes, and heat exchange is achieved through the fins on the finned tubes, so that the liquid in the tubes obtains heat and is vaporized.

[0003] Although the air-cooled vaporizer with rapid heat exchange has been optimized in terms of heat exchange efficiency, in some cases, such as poor heat exchange tube material, unreasonable fin design, or uneven fluid distribution, etc., the heat exchange efficiency may still not be high enough, which in turn affects the overall vaporization speed and efficiency. At the same time, during the heat exchange process, the fins of the finned tubes in the middle of the gasification process often freeze. The reason is that part of the liquid near the finned tubes is vaporized, while the liquid far from the finned tubes and in the center of the finned tubes is not completely vaporized, forming a gas-liquid mixture during the entire gasification process. Therefore, the temperature is relatively low during the entire gasification process, which affects the gasification efficiency.

[0004] To solve this problem, the conventional technology is to add a flow guide strip in the finned tube to guide the liquid through the flow guide strip, so that the liquid has more contact with the tube wall. However, the liquid in the tube is passively guided by the flow guide strip under the action of its own flowing force, and there will still be some liquid that is not vaporized. Unless the finned tube is long enough and the liquid vaporization time is long enough, relying solely on the flow guide strip is far from enough. Therefore, a vaporizer that can improve the gasification efficiency is urgently needed. Summary of the Utility Model

[0005] Aiming at the above defects, the purpose of the utility model is to provide an air-cooled vaporizer with rapid liquid absorption and heat exchange, which can improve the gasification efficiency and reduce the phenomenon of icing on the fins of the finned tubes in the middle of the gasification process.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: an air-cooled vaporizer with rapid liquid absorption and heat exchange, including at least two fixing plates;

[0007] Finned tubes, installed between the two fixing plates,

[0008] Connecting tubes, adjacent two finned tubes are connected through the connecting tubes;

[0009] Inlet tube, connected to the inlet of the rightmost finned tube;

[0010] Outlet tube, connected to the outlet of the leftmost finned tube;

[0011] The finned tubes are sequentially divided into a first tube group, a second tube group, and a third tube group from the direction of the inlet tube to the outlet tube;

[0012] A fixed shaft, both ends of the fixed shaft are respectively connected to the two fixing plates, the fixed shaft is arranged inside the finned tubes of the second tube group, and the fixed shaft is coaxially arranged with the finned tubes inside the second tube group. A plurality of connecting columns extend from the surface of the fixed shaft towards the inner wall of the finned tube, and arc-shaped baffles are arranged at the ends of the connecting columns;

[0013] Absorbent material, arranged between the inner wall of the finned tube and the arc-shaped baffle.

[0014] Preferably, the finned tubes of the first tube group are composed of 12 fins and a tube body, the finned tubes of the second tube group are composed of 8 fins and a tube body, and the finned tubes of the third tube group are composed of 4 fins and a tube body.

[0015] Preferably, the extension line of the fins in the second tube group towards the axis of the tube body is the standard line, and the standard line does not intersect with the arc-shaped baffle.

[0016] Preferably, the absorbent material is wound into a circular or arc shape.

[0017] Preferably, the thickness of the absorbent material is 10CM - 15CM.

[0018] Preferably, it further includes a guiding strip, the guiding strip is spiral, the guiding strip is arranged inside the finned tubes of the first tube group, and both ends of the guiding strip are respectively fixed to the two fixing plates.

[0019] Preferably, it further includes a mounting assembly, the mounting assembly includes a mounting frame and a rectangular connecting piece;

[0020] Both ends of the mounting frame are respectively mounted with the fixing plates, the rectangular connecting piece is arranged inside the mounting frame, and connecting tentacles extend outwards from the four corners of the rectangular connecting piece, and each connecting tentacle is detachably connected to the fins of the adjacent finned tubes.

[0021] Preferably, it further includes a base frame, there are a plurality of base frames, and the plurality of base frames are all arranged at the bottom of the mounting frame.

[0022] One of the above technical solutions has the following advantages or beneficial effects: By absorbing heat and vaporizing to form tiny bubbles, when the tiny bubbles flow upward to form larger bubbles, they escape from the small holes on the upper surface of the liquid-absorbing material, and finally the bubbles detach into gas on the upper surface of the liquid-absorbing material or at the liquid surface to reach boiling. The heat brought by the bursting of the bubbles is thus brought into the center of the finned tube from the inner wall of the finned tube, enabling the central liquid to also absorb heat, realizing rapid heat exchange between the center and the inner wall of the finned tube, accelerating the overall vaporization temperature and efficiency, and also avoiding the occurrence of icing of the finned tubes in the second tube group. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of an embodiment of the present invention.

[0024] Figure 2 is a schematic structural diagram of the finned tube of the first tube group in an embodiment of the present invention.

[0025] Figure 3 is a schematic structural diagram of the finned tube of the second tube group in an embodiment of the present invention.

[0026] Figure 4 is a schematic structural diagram of the finned tube of the second tube group in another embodiment of the present invention.

[0027] Figure 5 is a schematic structural diagram of the finned tube of the third tube group in an embodiment of the present invention.

[0028] Figure 6 is a schematic structural diagram of the flow guide strip in an embodiment of the present invention.

[0029] Figure 7 is a schematic structural diagram of another embodiment of the present invention.

[0030] Figure 8 is a schematic structural diagram of the rectangular connecting piece in an embodiment of the present invention.

[0031] Wherein: fixing plate 1, finned tube 2, fin 2a, tube body 2b, connecting tube 3, inlet tube 4, outlet tube 5, fixed shaft 6, connecting column 7, arc-shaped baffle 8, liquid-absorbing material 9, flow guide strip 10, including mounting frame 11, rectangular connecting piece 12, connecting tentacle 12a, base frame 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present 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 should not be construed as limiting the present utility model.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] As Figures 1 - 6 shown, an air-cooled vaporizer with rapid heat exchange by liquid absorption includes at least two fixing plates (1);

[0037] Finned tubes (2), installed between the two fixing plates (1),

[0038] Connecting pipes (3), adjacent two finned tubes (2) are communicated through the connecting pipes (3);

[0039] Inlet pipe (4), connected to the inlet of the rightmost finned tube (2);

[0040] Outlet pipe (5), connected to the outlet of the leftmost finned tube (2);

[0041] The finned tube (2) is sequentially divided into a first tube group, a second tube group, and a third tube group in the direction from the inlet tube (4) to the outlet tube (5);

[0042] A fixed shaft (6), both ends of the fixed shaft (6) are respectively connected to the two fixing plates (1), the fixed shaft (6) is arranged inside the finned tube (2) of the second tube group, and the fixed shaft (6) is coaxially arranged with the finned tube (2) inside the second tube group. A plurality of connecting columns (7) extend from the surface of the fixed shaft (6) towards the inner wall of the finned tube (2), and an arc-shaped baffle (8) is arranged at the end of the connecting column (7);

[0043] A liquid-absorbing material (9) is arranged between the inner wall of the finned tube (2) and the arc-shaped baffle (8).

[0044] When the liquid needs to be vaporized, it is input into the finned tube (2) of the first tube group through the inlet tube (4). Since the liquid is continuously vaporized during the vaporization process through the finned tube (2), the amount of liquid becomes less and less. In the middle of the vaporization process (the second tube group), because part of the liquid near the finned tube (2) is vaporized, while the liquid far from the finned tube (2) and located at the center of the finned tube (2) is not completely vaporized, a gas-liquid mixture is formed during the entire vaporization process. Therefore, the temperature is relatively low during the entire vaporization process, which affects the vaporization efficiency. For this reason, in the present utility model, a fixed shaft (6) is arranged inside the finned tube (2) of the second tube group. Through the fixed shaft (6) and the connecting columns (7) and the arc-shaped baffle (8) on the fixed shaft (6), the liquid-absorbing material (9) is clamped between the inner wall of the finned tube (2) and the arc-shaped baffle (8). Since the content of the liquid is small at this time, the liquid cannot contact the upper inner wall of the finned tube (2), and the liquid-absorbing material (9) has a porous structure similar to a liquid-absorbing core. Through the capillary phenomenon of the liquid-absorbing material (9), the liquid inside the finned tube (2) is adsorbed inside the liquid-absorbing material (9). The part of the liquid-absorbing material (9) in contact with the inner wall of the finned tube (2) is vaporized by absorbing heat to form tiny bubbles. When the tiny bubbles flow upward to form larger bubbles, they escape from the small holes on the upper surface of the liquid-absorbing material (9). Finally, the bubbles detach into gas at the upper surface of the liquid-absorbing material (9) or at the liquid surface to reach boiling. The heat brought by the bursting of the bubbles is then brought from the inner wall of the finned tube (2) to the center of the finned tube (2), so that the central liquid can also absorb heat, realizing the rapid heat exchange between the center and the inner wall of the finned tube (2), accelerating the overall vaporization temperature and efficiency, and also avoiding the freezing of the finned tube (2) in the second tube group.

[0045] Preferably, the finned tube (2) of the first tube group is composed of 12 fins (2a) and a tube body (2b), the finned tube (2) of the second tube group is composed of 8 fins (2a) and a tube body (2b), and the finned tube (2) of the third tube group is composed of 4 fins (2a) and a tube body (2b).

[0046] Since the gasification process is from the first tube group to the second tube group and then to the third tube group, and at the same time the liquid content gradually decreases as the gasification progresses, the liquid in contact with the finned tube (2) of the first tube group is the most, while the liquid content in the third tube group is the smallest. Therefore, in order to save materials, the fins (2a) of the finned tube (2) gradually decrease in the direction from the first tube group to the third tube group.

[0047] Preferably, the extension line of the fin (2a) in the second tube group towards the axis of the tube body (2b) is the standard line, and the standard line does not intersect with the arc-shaped baffle (8).

[0048] Since the fin (2a) is the key to heat exchange, in the inner wall of the finned tube (2), the closer to the fin (2a), the higher the heat exchange efficiency. Therefore, in the part of the liquid-absorbing material (9) close to the fin (2a), more bubbles are generated. If the standard line intersects with the arc-shaped baffle (8), at this time the arc-shaped baffle (8) will block the traveling path of the bubbles, making the bubbles unable to escape from the liquid-absorbing material (9). At the same time, when opening the liquid-absorbing material (9), the arc-shaped baffle (8) will squeeze the liquid-absorbing material (9), and the holes of the liquid-absorbing material (9) at the squeezing place will be deformed, and it may be impossible to form bubbles. Therefore, in order to improve the heat exchange efficiency, in the present utility model, the standard line does not intersect with the arc-shaped baffle (8).

[0049] Preferably, the liquid-absorbing material (9) is wound into a circular or arc shape.

[0050] When the second tube group is close to the first tube group, the liquid in the finned tube (2) is relatively more. At this time, the liquid-absorbing material (9) can be wound into a circular shape to increase the internal contact area between the liquid-absorbing material (9) and the finned tube (2) and improve the heat exchange speed.

[0051] When the second tube group is close to the third tube group, the liquid in the finned tube (2) is relatively less. It may only require part of the liquid-absorbing material (9) to absorb the liquid. In order to reduce the input of materials, at this time the liquid-absorbing material (9) can be wound into an arc shape.

[0052] Preferably, the thickness of the liquid-absorbing material (9) is 10 CM to 15 CM.

[0053] The liquid absorbing material (9) needs to have a sufficient thickness to enable the bubbles to change from lower bubbles to larger bubbles, thereby bursting on the liquid surface to achieve heat exchange. After multiple tests, the heat exchange effect is best when the thickness of the liquid absorbing material (9) is 10CM to 15CM.

[0054] Preferably, it further comprises a guide strip (10), the guide strip (10) being spiral-shaped, the guide strip (10) being arranged in the fin tube (2) of the first tube group, and the two sections of the guide strip (10) being respectively fixed to the two fixing plates (1).

[0055] When liquid enters the fins (2a) of the first tube group, the liquid will move along the lines of the spiral guide strips (10) themselves when the guide strips (10) themselves do not rotate, so that the liquid phase as a whole is very uniform, so that the temperature close to the inner wall and the center part of the fin tube (2) is always maintained constant, which is equivalent to uniformly stirring the liquid phase, thereby improving the gasification efficiency. At this time, the content of liquid entering the second tube group can be reduced, further reducing the possibility of ice formation on the fins (2a) of the fin tubes (2) of the second tube group.

[0056] Preferably, it further comprises a mounting assembly, the mounting assembly comprising a mounting frame (11) and a rectangular connecting member (12);

[0057] A plurality of the fixing plates (1) are respectively mounted on both ends of the mounting frame (11), and the fixing plates (1) located at the same end of the mounting frame (11) are distributed up and down. The rectangular connecting piece (12) is arranged in the mounting frame (11), and connecting contacts (12a) are respectively extended outward from four corners of the rectangular connecting piece (12), and each connecting contact (12a) is detachably connected to a fin (2a) of an adjacent fin tube (2).

[0058] Through the installation assembly, multiple groups of fixing plates can be integrated in an upper and lower distribution. When actual gasification is performed, the liquid source can be connected to multiple groups of fin tubes (2) to achieve rapid gasification. Since the liquid has a certain speed when inputting the liquid, when the liquid with a certain speed passes through the guide strip (10), it will produce a certain swing, thereby affecting the connection strength of the fin tubes (2) in the mounting frame. For this reason, in the utility model, a rectangular connecting piece (12) is also provided, and the four corners of the rectangular connecting piece (12) respectively extend outward to form connecting contacts (12a), and the upper and lower layers of fin tubes (2) are connected to form a force-bearing whole through the connecting contacts (12a). By inputting the liquid at different times, the swings of the upper and lower layers of the fin tubes (2) can be offset against each other, thereby improving the stability of the overall structure.

[0059] Preferably, it further includes a base frame (13), and a plurality of the base frames (13) are provided, and the plurality of base frames (13) are all arranged at the bottom of the mounting frame (11).

[0060] Through the base frame (13), the mounting frame (11) can be lifted, so that when the finned tube (2) at the bottom of the mounting clip conducts air-contact heat exchange, more air can be contacted, and the heat exchange efficiency of the finned tube (2) at the bottom can be improved.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do 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.

[0062] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air-temperature vaporizer with rapid heat exchange for liquid absorption, characterized in that: comprising at least two fixing plates (1); The fin tube (2) is installed between the two fixing plates (1). A connecting pipe (3), through which two adjacent fin tubes (2) are connected; An inlet pipe (4) connected to the inlet of the rightmost fin tube (2); An outlet pipe (5) connected to the outlet of the leftmost fin tube (2); The finned tubes (2) are divided into a first tube group, a second tube group and a third tube group in sequence from the inlet tube (4) to the outlet tube (5); A fixed shaft (6), the two ends of the fixed shaft (6) being respectively connected to the two fixed plates (1), the fixed shaft (6) being arranged in the fin tube (2) of the second tube group, and the fixed shaft (6) being arranged coaxially with the fin tube (2) in the second tube group, a plurality of connecting columns (7) extending from the surface of the fixed shaft (6) in the direction of the inner wall of the fin tube (2), and an arc-shaped baffle (8) being arranged at the end of the connecting column (7); The liquid absorbing material (9) is arranged between the inner wall of the fin tube (2) and the arc-shaped baffle (8).

2. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 1, characterized in that: The finned tube (2) of the first tube group consists of 12 fins (2a) and a tube body (2b), the finned tube (2) of the second tube group consists of 8 fins (2a) and a tube body (2b), and the finned tube (2) of the third tube group consists of 4 fins (2a) and a tube body (2b).

3. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 2, characterized in that: An extension line of the fins (2a) in the second tube group toward the axis of the tube body (2b) is a standard line, and the standard line does not intersect with the arc-shaped baffle (8).

4. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 1, characterized in that: The liquid absorbing material (9) is rolled into a circular or arc shape.

5. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 1, characterized in that: The thickness of the liquid absorbing material (9) is 10CM to 15CM.

6. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 1, characterized in that: It also comprises a guide bar (10), the guide bar (10) being in a spiral shape, the guide bar (10) being arranged in the fin tube (2) of the first tube group, and the two sections of the guide bar (10) being respectively fixed to the two fixing plates (1).

7. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 1, characterized in that: Also included is a mounting assembly, the mounting assembly comprising a mounting frame (11) and a rectangular connecting piece (12); A plurality of the fixing plates (1) are respectively mounted on both ends of the mounting frame (11), and the fixing plates (1) located at the same end of the mounting frame (11) are distributed up and down. The rectangular connecting piece (12) is arranged in the mounting frame (11), and connecting contacts (12a) are respectively extended outward from four corners of the rectangular connecting piece (12), and each connecting contact (12a) is detachably connected to a fin (2a) of an adjacent fin tube (2).

8. The air-temperature vaporizer with rapid liquid absorption and heat exchange according to claim 7, characterized in that: It also comprises a base frame (13), wherein a plurality of base frames (13) are provided, and the plurality of base frames (13) are all provided at the bottom of the mounting frame (11).

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