Heat exchanger

Abstract

The utility model discloses a heat exchanger which comprises a device shell and further comprises an observation opening, a heat exchanger, a heat exchanger and a heat exchanger, the connecting mechanism is arranged on one side of the observation opening; the observation mechanism is connected with the connecting mechanism, the observation mechanism is rotatably connected with the device shell through the connecting mechanism, and the observation mechanism rotates between a first position and a second position; when the observation mechanism rotates to the first position, the observation mechanism covers the observation opening; when the observation mechanism rotates to the second position, the observation opening is opened; the observation mechanism comprises an observation plate; the lock catch mechanism is arranged on the connecting mechanism and / or the observation mechanism, and the lock catch mechanism is used for locking the observation mechanism when the observation mechanism rotates to the first position; and the cleaning mechanism is arranged on the inner side of the observation mechanism and used for cleaning the surface of the observation plate. The condition in the device shell of the heat exchanger can be conveniently observed.

Description

A heat exchanger Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a heat exchanger. Background Technology

[0002] Heat exchange equipment, also known as a heat exchanger, is a device that transfers part of the heat from a hot fluid to a cold fluid. In tobacco processing production lines, key equipment such as feeders, loosening and rehumidifying machines, and drying machines all use heat exchangers to heat the air entering the equipment to meet requirements. Traditional heat exchangers mainly consist of fins, pipes, and a housing surrounding the pipes and fins. The fins are mounted on the pipes. By supplying a heat medium into the pipes, the heat within the medium is transferred to the fins, thus heating the air or process gas flowing through the fins, achieving the purpose of heat exchange.

[0003] However, it is not easy to observe the inside of the casing of this traditional heat exchanger. For example, tobacco structures tend to accumulate on the fins due to long-term use, which reduces the heat exchange efficiency. In this case, the casing must be completely removed to observe the pipes and fins, which is time-consuming and laborious. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that it is difficult to observe the internal condition of the heat exchanger's casing in existing technologies. This invention provides a heat exchanger that allows for easy observation of the internal condition of the heat exchanger's casing, facilitating timely fault detection.

[0005] To address the aforementioned technical problems, this utility model discloses a heat exchanger, including a housing with a medium inlet and a medium outlet at both ends. The heat exchanger includes:

[0006] An observation port is located on the outer casing of the device;

[0007] The connecting mechanism is located on one side of the observation port;

[0008] An observation mechanism is connected to a connecting mechanism and is rotatably connected to the device housing via the connecting mechanism. The observation mechanism rotates between a first position and a second position. When the observation mechanism rotates to the first position, it covers the observation port. When the observation mechanism rotates to the second position, the observation port opens. The observation mechanism includes an observation plate made of transparent material.

[0009] A locking mechanism is provided on the connecting mechanism and / or the observation mechanism, and the locking mechanism is used to lock the observation mechanism when the observation mechanism is rotated to the first position;

[0010] The cleaning mechanism, located inside the observation mechanism, is used to clean the surface of the observation panel.

[0011] According to another specific embodiment of the present invention, the observation mechanism further includes a mounting frame, the observation plate being surrounded by the mounting frame and detachably connected to the mounting frame.

[0012] According to another specific embodiment of the present invention, the cleaning mechanism includes:

[0013] The first bracket, one end of which is fixed to the mounting frame;

[0014] An ultrasonic transducer is mounted on the first support, and the output end of the ultrasonic transducer is in contact with the inner surface of the observation plate.

[0015] According to another specific embodiment of the present invention, the mounting frame is a rectangular frame with an opening in the middle, the observation plate covers the opening in the middle of the mounting frame, and is connected to the mounting frame by fasteners.

[0016] According to another specific embodiment of this utility model, a sealing ring is provided at the connection position between the observation plate and the mounting frame.

[0017] According to another specific embodiment of the present invention, a sealing element is provided on the surface of the mounting frame facing the device housing. The sealing element surrounds the observation port and is used to seal the gap between the device housing and the mounting frame.

[0018] According to another specific embodiment of the present invention, the observation plate is made of plexiglass, or the observation plate includes an inner layer, an outer layer and a thickening fluid filled between the inner and outer layers, wherein the inner and outer layers are both made of polycarbonate.

[0019] According to another specific embodiment of the present invention, the inner surface of the observation plate facing the device housing is covered with a photocatalytic layer.

[0020] According to another specific embodiment of the present invention, the connecting mechanism is a hinge, which is connected to the device housing and the mounting frame respectively, so as to rotatably connect the mounting frame to one side of the observation port.

[0021] According to another specific embodiment of the present invention, the locking mechanism includes a card seat and a hook. The card seat is connected to the outer shell of the device. The card seat and the connecting mechanism are respectively arranged on both sides of the observation port in the horizontal direction. The hook is hinged to the mounting frame. When the observation mechanism is in the first position, the hook can rotate to the card seat and hook with the card seat to lock the observation mechanism.

[0022] According to the heat exchanger provided by this utility model, an observation port is provided on the outer casing of the device, and an observation mechanism is provided on the observation port. The observation mechanism includes an observation plate made of transparent material, through which operators can observe the internal condition of the outer casing. The observation mechanism is rotatably connected to the outer casing of the device via a connecting mechanism, and locked to the outer casing via a locking mechanism. This allows for easy maintenance of the heat exchanger's internal structure (such as cleaning scale buildup on the fins, maintaining leak points, etc.) by opening the locking mechanism and rotating the observation mechanism. When the heat exchanger is operating normally, the observation mechanism is locked to the outer casing via the locking mechanism, keeping the observation mechanism covering the observation port. This does not affect the normal operation of the heat exchanger, and the internal condition of the outer casing can be observed through the observation plate for easy fault detection. The heat exchanger provided by this utility model facilitates easy observation of the internal condition of the heat exchanger, enables easy fault detection, and facilitates simple maintenance of the equipment. Attached Figure Description

[0023] Figure 1 shows a front view of a heat exchanger provided in an embodiment of the present invention;

[0024] Figure 2 shows a cross-sectional view along line AA of Figure 1;

[0025] Figure 3 shows a front view of the observation mechanism and cleaning mechanism provided in an embodiment of the present invention.

[0026] Explanation of icon numbers:

[0027] 11. Medium inlet; 12. Medium outlet; 13. Device casing; 14. Observation port; 2. Observation mechanism; 21. Observation plate; 22. Mounting frame; 23. Sealing ring; 24. Sealing element; 3. Connection mechanism; 31. Hinge; 4. Locking mechanism; 41. Card seat; 42. Hook; 5. Cleaning mechanism; 51. First support; 511. Column; 512. Hoop ring; 52. Ultrasonic transducer; 6. Light transmittance detection unit; 61. Second support. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0034] Figure 1 shows a front view of a heat exchanger according to an embodiment of the present invention. The heat exchanger includes a housing 13, with a medium inlet 11 and a medium outlet 12 at both ends of the housing 13. The housing 13 contains fins (not shown) and pipes (not shown), which connect the medium inlet 11 and the medium outlet 12. Hot medium is input into the pipe through the medium inlet 11 and output from the medium outlet 12, and the heat within the medium is transferred to the fins through the pipe.

[0035] In this embodiment, as shown in Figures 1 and 2, the heat exchanger includes:

[0036] An observation port 14 is provided on the outer casing 13 of the device;

[0037] The connecting mechanism 3 is located on one side of the observation port 14, and the connecting mechanism 3 is positioned close to the edge of the observation port 14;

[0038] The observation mechanism 2 is connected to the connecting mechanism 3. The observation mechanism 2 is rotatably connected to the device housing 13 via the connecting mechanism 3. The observation mechanism 2 rotates between a first position and a second position. When the observation mechanism 2 rotates to the first position, it covers the observation port 14 (as shown in Figure 1). When the observation mechanism 2 rotates to the second position, the observation port 14 opens. The observation mechanism 2 includes an observation plate 21 made of transparent material.

[0039] A locking mechanism 4 is provided on the connecting mechanism 3 and / or the observation mechanism 2. The locking mechanism 4 is used to lock the observation mechanism 2 when the observation mechanism 2 is rotated to the first position.

[0040] The cleaning mechanism 5 is located inside the observation mechanism 2 and is used to clean the surface of the observation plate 21.

[0041] This technical solution, by providing an observation port 14 and an observation mechanism 2 on the device housing 13, allows operators to observe the internal condition of the device housing 13 through the observation plate 21 of the observation mechanism 2. The observation mechanism 2 is rotatably connected to the device housing 13 via a connecting mechanism 3 and locked to the device housing 13 by a locking mechanism 4. This allows for easy maintenance of the heat exchanger's internal structure (such as cleaning scale on the fins or repairing leaks) by opening the locking mechanism 4 and rotating the observation mechanism 2 to a second position to open the observation port 14, facilitating internal maintenance. When the heat exchanger is operating normally, the observation mechanism 2 is locked to the device housing 13 by the locking mechanism 4, ensuring that the observation mechanism 2 covers the observation port 14, thus not affecting the normal operation of the heat exchanger. The internal condition of the device housing 13 can still be observed through the observation plate 21 for immediate fault detection. The heat exchanger provided by this invention facilitates easy observation of the internal condition of the heat exchanger, enables timely fault detection, and facilitates simple maintenance of the equipment.

[0042] Specifically, in this embodiment, a rectangular observation port 14 is provided in the middle of the device housing 13. The observation plate 21 of the observation mechanism 2 is correspondingly provided with the observation port 14, and the internal situation of the device housing 13 can be observed through the observation port 14 via the observation plate 21.

[0043] Furthermore, the observation mechanism 2 also includes a mounting frame 22, the observation plate 21 being surrounded by the mounting frame 22 and detachably connected to the mounting frame 22.

[0044] Specifically, a mounting frame 22 surrounds the outer side of the observation plate 21. One side of the mounting frame 22 is rotatably connected to the device housing 13 via a connecting mechanism 3, and the other side of the mounting frame 22 is connected to the device housing 13 via a locking mechanism 4, thereby allowing the observation port 14 to be opened and closed. This technical solution enhances stability and reduces the risk of damage to the observation plate 21.

[0045] Furthermore, the mounting frame 22 is a rectangular frame with an opening in the middle, and the observation plate 21 covers the opening in the middle of the mounting frame 22 and is connected to the mounting frame 22 by fasteners.

[0046] For example, the fasteners are bolts. In this embodiment, four fasteners are provided at the four corners of the observation plate 21. The fasteners allow the observation plate 21 to be detachably mounted on the mounting frame 22, facilitating the disassembly and installation of the observation plate 21 by workers, and thus making it easier to replace the observation plate 21. It is worth noting that this invention does not limit the number of fasteners; the number can be set according to actual needs.

[0047] Further, as shown in Figures 2 and 3, in this embodiment, the cleaning mechanism 5 includes:

[0048] The first bracket 51, one end of which is fixed to the mounting frame 22;

[0049] An ultrasonic transducer 52 is mounted on the first support 51, and the output end of the ultrasonic transducer is in contact with the surface of the observation plate 21.

[0050] This technical solution involves setting a cleaning mechanism 5 on the observation plate 21 to clean the observation plate 21 in a timely manner, thereby improving the perspective effect of the observation plate 21.

[0051] Specifically, in this embodiment, one end of the first bracket 51 is provided with a column 511, which can be fixedly connected to one side of the mounting frame 22 by welding or other means. The other end of the first bracket 51 is provided with a clamping ring 512. The ultrasonic transducer 52 is connected to the other end of the first bracket 51 through the clamping ring 512. In this embodiment, the ultrasonic transducer 52 is clamped by the clamping ring 512 to fix the ultrasonic transducer 52. The output end of the ultrasonic transducer 52 contacts the surface of the observation plate 21 to generate ultrasonic waves on the surface of the observation plate 21; and the ultrasonic transducer 52 is located at the center of the observation plate 21, so that the stress on the observation plate 21 is uniform around its perimeter, preventing damage to the observation plate 21. The ultrasonic waves generated by the ultrasonic transducer 52 clean the surface of the observation plate 21, achieving the effect of anti-fogging and dust prevention.

[0052] Optionally, the cleaning mechanism 5 also includes a control unit and a transmittance detection unit 6, which is electrically connected to the control unit and the control unit is also electrically connected to the ultrasonic transducer 52.

[0053] As shown in Figure 2, the transmittance detection unit 6 is disposed on the outside of the observation mechanism 2. Specifically, a second bracket 61 is provided on the outside of the mounting frame 22. The second bracket 61 is disposed on both sides of the observation plate 21 corresponding to the first bracket 51 to reduce the impact on the observation field of view. One end of the second bracket 61 is fixed to the mounting frame 22, and the other end of the second bracket 61 is provided with the transmittance detection unit 6. In this embodiment, the transmittance detection unit 6 is a transmittance meter, model NS530, used to detect the transmittance of the observation plate 21.

[0054] The transmittance detection unit 6 transmits the detected transmittance to the control unit. The control unit determines whether the transmittance is lower than the set threshold based on the received transmittance. When the transmittance is lower than the set threshold, the control unit controls the ultrasonic transducer 52 to work. The ultrasonic transducer 52 generates ultrasonic waves to clean the surface of the observation plate 21.

[0055] Furthermore, in this embodiment, as shown in FIG2, a sealing ring 23 is provided at the connection position between the observation plate 21 and the mounting frame 22.

[0056] Specifically, in one embodiment of this invention, the inner diameter of the mounting frame 22 is adapted to the outer diameter of the observation plate 21. The inner side of the mounting frame 22 is provided with an extension side extending inward along its inner frame body, and a sealing ring 23 is attached to the extension side. The sealing ring 23 is a very thin rubber pad, which is disposed between the observation plate 21 and the mounting frame 22 to seal the connection position between the observation plate 21 and the mounting frame 22.

[0057] In other embodiments, the outer diameter of the observation plate 21 can be set to be larger than the inner diameter of the frame opening of the mounting frame 22, and the observation plate 21 can be directly installed on the frame of the mounting frame 22. The sealing ring 23 is set at the connection position between the observation plate 21 and the mounting frame 22.

[0058] By adopting the above technical solution, the sealing between the observation plate 21 and the mounting frame 22 can be improved, thus avoiding heat loss.

[0059] Furthermore, a sealing element 24 is provided on the surface of the mounting frame 22 facing the device housing 13. The sealing element 24 surrounds the observation port 14 and is used to seal the gap between the device housing 13 and the mounting frame 22. With this technical solution, the mounting frame 22 and the device housing 13 are sealed with the sealing element 24, which improves the sealing performance between the observation mechanism 2 and the device housing 13 and avoids heat loss.

[0060] Specifically, in this embodiment, a sealing element 24 is provided along the outermost ring of the mounting frame 22, and the sealing element 24 is attached to the mounting frame 22.

[0061] Furthermore, in one embodiment of this utility model, the observation plate 21 is made of plexiglass.

[0062] In another embodiment of this utility model, the observation plate 21 includes an inner layer, an outer layer, and a thickening fluid filled between the inner and outer layers. Both the inner and outer layers are made of polycarbonate. Using this technical solution, the inner and outer layers of the observation plate 21 are made of polycarbonate, which has the characteristics of being shatterproof and having high light transmittance. The thickening fluid filled between the two polycarbonate layers can harden when the observation plate 21 is impacted, buffering the external force, thereby improving impact resistance and safety without affecting observation.

[0063] Optionally, the thickening fluid can be a water-based polyurethane thickener (such as TA3020), which is an environmentally friendly liquid with high transparency. In use, this thickening fluid can be compounded with nanoparticles (transparent particles) to enhance impact hardening properties.

[0064] Furthermore, the inner surface of the observation plate 21 facing the device housing 13 is covered with a photocatalytic layer.

[0065] Optionally, the photocatalyst layer is a titanium dioxide layer. Titanium dioxide is sputtered onto the inner surface of the observation plate 21 to form a thin film, which can effectively prevent fogging and beading on the glass, keeping the glass clean and bright.

[0066] Furthermore, the connecting mechanism 3 is a hinge, which is connected to the device housing 13 and the mounting frame 22 respectively, so as to rotatably connect the mounting frame 22 to one side of the observation port 14.

[0067] Optionally, the connecting mechanism 3 includes two hinges 31, the rotation axis of the observation mechanism 2 extends vertically, and the two hinges 31 are spaced apart vertically.

[0068] Optionally, in this embodiment, the hinge 31 is a hinged external hinge. One end of the hinge 31 is fixed to the device housing 13, and the other end of the hinge 31 is fixed to one side of the mounting frame 22. The mounting frame 22 is movably connected to the device housing 13 through the hinge 31.

[0069] Furthermore, the locking mechanism 4 includes a seat 41 and a hook 42. The seat 41 is connected to the outer casing 13 of the device. The seat 41 and the connecting mechanism 3 are respectively arranged on both sides of the observation port 14 in the horizontal direction. The hook 42 is hinged to the mounting frame 22. When the observation mechanism 2 is in the first position, the hook 42 can rotate to the seat 41 and hook with the seat 41 to lock the observation mechanism 2.

[0070] Specifically, the mounting bracket 41 is disposed on the outer casing 13 of the device and located on one side of the observation port 14, and the latch 42 is disposed on the other side of the mounting frame 22 opposite to the hinge 31. The observation mechanism 2 is locked by the latch 42 engaging with the mounting bracket 41.

[0071] Optionally, there are two locking mechanisms 4, which are arranged at intervals along the vertical direction.

[0072] According to the heat exchanger provided by this utility model, an observation port 14 is provided on the device housing 13, and two hinges 31 are provided vertically on one side of the observation port 14. The two hinges 31 are also connected to one side of the mounting frame 22, thereby rotatably connecting one side of the mounting frame 22 to the device housing 13. On the other side of the observation port 14, two locking mechanisms 4 are provided vertically. The locking mechanism 4 has a retainer 41 on the device housing 13 and a hook 42 on the mounting frame 22. The hook 42 cooperates with the retainer 41 to lock the observation mechanism 2 to the outside of the device housing 13. The mounting frame 22 has an observation plate 21 in the middle opening. The observation plate 21 is opposite to the observation port 14, and the internal condition of the device housing 13 can be observed through the observation plate 21. The observation mechanism 2 can move between a first position and a second position. When the observation mechanism 2 is in the first position, the hook 42 engages with the retainer 41, and the observation mechanism 2 is locked to the device housing 13. When the observation mechanism 2 is in the second position, the hook 42 separates from the seat 41, and the observation plate 21 can be opened to expose the observation port 14 on the device housing 13.

[0073] The heat exchanger provided by this utility model allows for easy observation of its internal condition, facilitates timely fault detection, and enables simple maintenance of the equipment.

[0074] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heat exchanger, comprising a housing, wherein a medium inlet and a medium outlet are respectively provided at both ends of the housing, characterized in that, The heat exchanger includes: an observation port disposed on the outer casing of the device; a connecting mechanism disposed on one side of the observation port; an observation mechanism connected to the connecting mechanism, the observation mechanism being rotatably connected to the outer casing of the device via the connecting mechanism, the observation mechanism rotating between a first position and a second position; when the observation mechanism rotates to the first position, the observation mechanism covers the observation port; when the observation mechanism rotates to the second position, the observation port opens; the observation mechanism includes an observation plate made of transparent material; a locking mechanism disposed on the connecting mechanism and / or the observation mechanism, the locking mechanism being used to lock the observation mechanism when the observation mechanism rotates to the first position; and a cleaning mechanism disposed on the inner side of the observation mechanism for cleaning the surface of the observation plate.

2. The heat exchanger according to claim 1, characterized in that, The observation mechanism also includes a mounting frame, the observation plate being surrounded by the mounting frame and detachably connected to the mounting frame.

3. The heat exchanger according to claim 2, characterized in that, The cleaning mechanism includes: a first bracket, one end of which is fixed to the mounting frame; and an ultrasonic transducer disposed on the first bracket, the output end of which is in contact with the inner surface of the observation plate.

4. The heat exchanger according to claim 2, characterized in that, The mounting frame is a rectangular frame with an opening in the middle. The observation plate covers the opening in the middle of the mounting frame and is connected to the mounting frame by fasteners.

5. The heat exchanger according to claim 4, characterized in that, A sealing ring is provided at the connection point between the observation plate and the mounting frame.

6. The heat exchanger according to claim 2, characterized in that, A sealing element is provided on the surface of the mounting frame facing the device housing. The sealing element surrounds the observation port and is used to seal the gap between the device housing and the mounting frame.

7. The heat exchanger according to claim 1, characterized in that, The observation plate is made of glass, or the observation plate includes an inner layer, an outer layer, and a thickening fluid filled between the inner layer and the outer layer, wherein the inner layer and the outer layer are both made of polycarbonate.

8. The heat exchanger according to claim 7, characterized in that, The inner surface of the observation plate facing the device housing is covered with a photocatalytic layer.

9. The heat exchanger according to claim 2, characterized in that, The connecting mechanism is a hinge, which is connected to the device housing and the mounting frame respectively, so as to rotatably connect the mounting frame to one side of the observation port.

10. The heat exchanger according to claim 2, characterized in that, The locking mechanism includes a locking seat and a locking hook. The locking seat is connected to the outer shell of the device. The locking seat and the connecting mechanism are respectively arranged on both sides of the observation port in the horizontal direction. The locking hook is hinged to the mounting frame. When the observation mechanism is in the first position, the locking hook can rotate to the locking seat and hook onto the locking seat to lock the observation mechanism.

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