Heat preservation device of air heat exchanger

Abstract

The utility model discloses a heat preservation device of an air heat exchanger, which belongs to the technical field of air heat exchangers, and comprises a heat preservation shell which covers the air heat exchanger, a heat preservation gap is arranged between the air heat exchanger shell and the heat preservation shell, the heat preservation shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected through a connecting piece; the heating assembly comprises a heating element, a temperature sensor and a controller, the heating element and the temperature sensor are both arranged in the heat preservation gap, the controller is arranged outside the heat preservation shell, the heating element is electrically connected with the controller, and the controller receives electric signals transmitted by the temperature sensor and controls the heating element to work. According to the heat preservation device, the upper shell and the lower shell are buckled to form the heat preservation gap, the heating assembly is arranged in the heat preservation gap, the low heat conduction characteristic of air is utilized, heat exchange is reduced, the heat preservation effect is good, and the energy utilization efficiency is high. In addition, the detachable design facilitates maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of air heat exchanger technology, and in particular relates to a heat preservation device for air heat exchangers. Background Technology

[0002] Air heat exchangers are widely used in industrial production, but in low-temperature environments, condensation, frost, and even ice can easily form on their surfaces, leading to decreased heat exchange efficiency, increased energy consumption, and in severe cases, affecting the normal operation of the equipment. Traditional insulation methods often involve wrapping with insulation cotton or installing insulation covers, but these methods suffer from problems such as unsatisfactory insulation effects, inconvenient disassembly, and difficulties in equipment maintenance.

[0003] Therefore, a heat preservation device for air heat exchangers is proposed. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a heat preservation device for an air heat exchanger.

[0005] To achieve the above objectives, this utility model provides a heat preservation device for an air heat exchanger, comprising:

[0006] An insulating shell is provided to cover the air heat exchanger. An insulating gap is provided between the air heat exchanger shell and the insulating shell. The insulating shell includes an upper shell and a lower shell, which are detachably connected by a connector.

[0007] The heating assembly includes a heating element, a temperature sensor, and a controller. The heating element and the temperature sensor are both disposed within the insulation gap, and the controller is disposed outside the insulation shell. The heating element and the controller are electrically connected. The controller receives the electrical signal transmitted by the temperature sensor and controls the heating element to operate.

[0008] Preferably, the heating element is spirally wound around the outside of the air heat exchanger and fixed to the air heat exchanger housing by several brackets.

[0009] Preferably, a fixing ring is fixedly connected to the inner wall of the upper shell and the lower shell, and the inner wall of the fixing ring abuts against the outer shell of the air heat exchanger.

[0010] Preferably, the upper shell and the lower shell have through holes corresponding to the external pipes of the air heat exchanger, and a sealing ring is fixedly connected in the through hole.

[0011] Preferably, a sealing gasket is provided between the upper shell and the lower shell.

[0012] Preferably, the upper shell and the lower shell are tightly connected by a locking mechanism.

[0013] Preferably, the upper shell and the lower shell are fixedly connected to the outer side of the connecting flange, and the latch includes a movable part and a fixed part, which are respectively disposed on the two connecting flanges.

[0014] Preferably, both the upper shell and the lower shell are provided with three layers from the outside in: an outer layer, an inner layer, and a middle layer. The outer layer and the inner layer are made of corrosion-resistant and high-temperature-resistant metal materials, and the middle layer is made of thermal insulation material with low thermal conductivity.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] An insulated shell is installed outside the air heat exchanger with an insulation gap, effectively reducing heat exchange between the air heat exchanger and the external environment, minimizing heat loss, and improving energy efficiency. This design provides a good insulation environment for the air heat exchanger. The upper and lower shells interlock and are detachably connected via connectors, facilitating the installation and removal of the insulation device and enabling convenient maintenance and repair of the air heat exchanger. The heating element monitors the temperature within the insulation gap in real time via a temperature sensor and transmits the signal to the controller. The controller precisely controls the operation of the heating element, ensuring that the air temperature within the insulation gap remains within a suitable range. Once the air temperature within the insulation gap is approximately equal to that inside the air heat exchanger, it hinders further heat exchange, thus insulating the outer shell of the air heat exchanger. Since the thermal conductivity of gases is much lower than that of solids, the heat exchange between the fully heated air and the insulation shell is also minimal. Compared to the traditional method of directly applying insulation material to the air heat exchanger, this design provides significantly better insulation. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the insulation device structure of the air heat exchanger of this utility model;

[0019] Figure 2 This is a schematic diagram of the thermal insulation shell in the open state of this utility model;

[0020] Figure 3 This is a cross-sectional view of the thermal insulation shell portion of this utility model;

[0021] Figure 4 This is a schematic diagram of the thermal insulation shell layer structure in this utility model.

[0022] In the diagram: 1. Insulated shell; 2. Air heat exchanger; 101. Upper shell; 102. Lower shell; 3. Connector; 4. Heating element; 5. Temperature sensor; 6. Controller; 8. Fixing ring; 9. Through hole; 10. Sealing ring; 11. Sealing gasket; 12. Connecting flange; 1011. Outer layer; 1012. Inner layer; 1013. Intermediate layer; 13. Insulation gap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figures 1 to 4 As shown, this embodiment provides a heat preservation device for an air heat exchanger, comprising:

[0026] The insulation shell 1 is covered outside the air heat exchanger 2. An insulation gap 13 is provided between the outer shell of the air heat exchanger 2 and the insulation shell 1. The insulation shell 1 includes an upper shell 101 and a lower shell 102, which are detachably connected by a connector 3.

[0027] The heating assembly includes a heating element 4, a temperature sensor 5, and a controller 6. The heating element 4 and the temperature sensor 5 are both disposed within the insulation gap 13, and the controller 6 is disposed outside the insulation shell 1. The heating element 4 and the controller 6 are electrically connected. The controller 6 receives the electrical signal transmitted by the temperature sensor 5 and controls the heating element 4 to work.

[0028] The insulation shell 1 covers the air heat exchanger 2 and has an insulation gap 13, which can effectively reduce the heat exchange between the air heat exchanger 2 and the external environment, reduce heat loss, and improve energy utilization efficiency. This design provides a good insulation environment for the air heat exchanger 2. The upper shell 101 and the lower shell 102 are interlocked and detachably connected by the connector 3, which facilitates the installation and removal of the insulation device and makes it convenient for maintenance and repair of the air heat exchanger 2. The heating component monitors the temperature inside the insulation gap 13 in real time through the temperature sensor 5 and transmits the signal to the controller 6. The controller 6 precisely controls the operation of the heating element 4, so that the air temperature inside the insulation gap 13 is always kept within a suitable temperature range. When the temperature of the air inside the insulation gap 13 is basically the same as that inside the air heat exchanger 2, it can prevent further heat exchange, thereby insulating the outer shell of the air heat exchanger 2. Since the thermal conductivity of gases is much lower than that of solids, the heat exchange between the fully heated air and the insulation shell 1 is also relatively small. Compared with the traditional method of directly applying insulation material to the air heat exchanger 2, its insulation effect is better.

[0029] In a further optimized design, the heating element 4 is spirally wound around the outside of the air heat exchanger 2 and fixed to the outer shell of the air heat exchanger 2 by several brackets.

[0030] The spiral winding method allows the heating element 4 to wrap more tightly and evenly around the air heat exchanger 2, greatly increasing the contact area and coverage with the air heat exchanger 2's outer shell. This allows heat to be transferred to the air heat exchanger 2 more evenly and efficiently, effectively avoiding localized overheating or undercooling. This ensures that the air heat exchanger 2 maintains a stable and suitable operating temperature, improving its performance and efficiency. Several supports fix the heating element 4 to the air heat exchanger 2's outer shell, preventing the heating element 4 from shifting or shaking during operation due to vibration, airflow, or other factors. This ensures that the heating element 4 is always in an ideal working position, improving the reliability and service life of the heating assembly, and also reducing potential safety hazards caused by the displacement of the heating element 4.

[0031] In a further optimized design, a fixing ring 8 is fixedly connected to the inner wall of the upper shell 101 and the lower shell 102, and the inner wall of the fixing ring 8 abuts against the outer shell of the air heat exchanger 2.

[0032] The fixing ring 8 acts as a support point, firmly connecting the upper shell 101 and lower shell 102 to the air heat exchanger 2. This makes the entire insulation device and the air heat exchanger 2 form a more stable whole, reducing the shaking or displacement of the air heat exchanger 2 inside the insulation shell caused by external vibrations, airflow impacts, etc., and preventing damage to the insulation gap 13 and the overall insulation structure due to positional changes. This ensures the long-term stable operation of the insulation device. In addition, the abutting relationship between the inner wall of the fixing ring 8 and the outer shell of the air heat exchanger 2 also plays a certain role in positioning, allowing the upper shell 101 and lower shell 102 to more accurately align with the air heat exchanger 2 during installation, improving the convenience and accuracy of installation.

[0033] In a further optimized design, the upper shell 101 and the lower shell 102 are provided with through holes 9 for the external pipes of the air heat exchanger 2, and a sealing ring 10 is fixedly connected in the through holes 9.

[0034] By providing the through hole 9, the external pipeline can be easily separated and disassembled from the insulation shell 1, avoiding the impact of the fixed connection between the external pipeline and the insulation shell 1 on the separation of the upper shell 101 and the lower shell 102. The sealing ring 10 can effectively fill the gap between the through hole 9 and the external pipeline, preventing heat from being lost to the outside through these gaps, further optimizing the insulation effect of the insulation device and reducing energy consumption.

[0035] To further optimize the design, a sealing gasket 11 is provided between the upper shell 101 and the lower shell 102.

[0036] The sealing gasket 11 fills the tiny gaps at the joint between the upper shell 101 and the lower shell 102, greatly enhancing the sealing performance of the insulation shell 1 and effectively reducing the possibility of heat loss to the outside from this connection point. This significantly improves the insulation performance of the entire insulation device and reduces energy consumption. The sealing ring 10 and the sealing gasket 11 work together to prevent dust, rainwater, moisture, and other external impurities from entering the insulation gap 13, avoiding corrosion and damage to the internal structures of the air heat exchanger 2 and heating components, thus extending the service life of the equipment. Furthermore, a good seal maintains the stability of the environment within the insulation gap 13, allowing the heating components to control the temperature more precisely, creating a stable operating temperature environment for the air heat exchanger 2, and ensuring its high efficiency and reliability.

[0037] The design was further optimized so that the upper shell 101 and the lower shell 102 are tightly connected by a locking mechanism.

[0038] The snap-on connection method is simple and quick to operate. Compared with traditional bolt connections or welding, it can significantly reduce the time and labor costs required for installation and disassembly, improve work efficiency, and facilitate subsequent maintenance and repair of the air heat exchanger 2. In terms of connection stability, the snap-on connection ensures a tight fit between the upper shell 101 and the lower shell 102, guaranteeing the integrity and sealing of the insulation shell 1 structure, effectively reducing heat loss from the connection points, and enhancing the insulation performance of the insulation device. Furthermore, during long-term use, the snap-on connection can effectively resist external vibrations and impacts, maintaining connection stability and ensuring that the insulation device is always in good working condition, thus guaranteeing the stable operation of the air heat exchanger 2.

[0039] In a further optimized design, connecting flanges 12 are fixedly connected to the outer sides of the upper shell 101 and the lower shell 102. The latch includes a movable part and a fixed part, which are respectively set on the two connecting flanges 12.

[0040] The connecting flange 12 provides a high-strength mounting base for the latch assembly, enabling precise alignment of the moving and fixed parts of the latch during engagement and resulting in a more even distribution of force.

[0041] The design is further optimized so that both the upper shell 101 and the lower shell 102 are provided with three layers from the outside to the inside: an outer layer 1011, an inner layer 1012, and a middle layer 1013. The outer layer 1011 and the inner layer 1012 are both made of corrosion-resistant and high-temperature resistant metal materials, while the middle layer 1013 is made of thermal insulation material with low thermal conductivity.

[0042] In this embodiment, both the outer layer 1011 and the inner layer 1012 are made of 316L stainless steel, forming a bimetallic protective system that can effectively resist acid and alkali corrosion media and high-temperature oxidation, and can enhance structural stability and prevent deformation or damage. The middle layer 1013 is made of ceramic fiber cotton, which can effectively block heat transfer, improve the insulation effect, and reduce heat loss.

[0043] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A heat preservation device for an air heat exchanger, characterized in that, include: An insulation shell (1) is installed outside an air heat exchanger (2). An insulation gap (13) is provided between the outer shell of the air heat exchanger (2) and the insulation shell (1). The insulation shell (1) includes an upper shell (101) and a lower shell (102). The upper shell (101) and the lower shell (102) are detachably connected by a connector (3). The heating assembly includes a heating element (4), a temperature sensor (5), and a controller (6). The heating element (4) and the temperature sensor (5) are both disposed within the insulation gap (13), and the controller (6) is disposed outside the insulation shell (1). The heating element (4) and the controller (6) are electrically connected. The controller (6) receives the electrical signal transmitted by the temperature sensor (5) and controls the heating element (4) to work.

2. The heat preservation device for the air heat exchanger according to claim 1, characterized in that: The heating element (4) is spirally wound around the outside of the air heat exchanger (2) and fixed to the outer shell of the air heat exchanger (2) by several brackets.

3. The heat preservation device for the air heat exchanger according to claim 1, characterized in that: A fixing ring (8) is fixedly connected to the inner wall of the upper shell (101) and the lower shell (102), and the inner wall of the fixing ring (8) abuts against the outer shell of the air heat exchanger (2).

4. The heat preservation device for the air heat exchanger according to claim 1, characterized in that: The upper shell (101) and the lower shell (102) are provided with through holes (9) corresponding to the external pipes of the air heat exchanger (2), and a sealing ring (10) is fixedly connected in the through hole (9).

5. The heat preservation device for an air heat exchanger according to claim 1, characterized in that: A sealing gasket (11) is provided between the upper shell (101) and the lower shell (102).

6. The heat preservation device for an air heat exchanger according to claim 1, characterized in that: The upper shell (101) and the lower shell (102) are tightly connected by a locking mechanism.

7. The heat preservation device for an air heat exchanger according to claim 6, characterized in that: The upper shell (101) and the lower shell (102) are fixedly connected to the outer side of the connecting flange (12). The latch includes a movable part and a fixed part, which are respectively disposed on the two connecting flanges (12).

8. The heat preservation device for an air heat exchanger according to claim 1, characterized in that: Both the upper shell (101) and the lower shell (102) are provided with three layers from the outside to the inside: an outer layer (1011), an inner layer (1012), and a middle layer (1013). The outer layer (1011) and the inner layer (1012) are both corrosion-resistant and high-temperature resistant metal materials, and the middle layer (1013) is a thermal insulation material with low thermal conductivity.

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