A hybrid ventilation system suitable for mobile buildings

Abstract

The utility model provides a kind of mixed ventilation system suitable for mobile building, comprising: exhaust heat recovery unit, air supply pipe, exhaust pipe, exhaust port, air supply port, pipeline electric heater.The mixed ventilation system provided by the utility model carries out heating treatment to fresh air, avoids cold feeling caused by supercooling;Simultaneously using the mode of exhaust heat recovery, the heat of exhaust is recycled to preheat fresh air, reduces heat consumption.

Description

Technical Field

[0001] This practical ventilation design technology specifically relates to a hybrid ventilation system suitable for mobile buildings. Background Technology

[0002] The polar regions are rich in natural resources and possess significant scientific research value, leading countries around the world to establish research stations there. Polar climates are characterized by cold, dryness, and strong winds. To prevent cold air penetration and reduce heat loss, research buildings typically have high airtightness. However, excessive airtightness results in poor ventilation and ineffective removal of indoor pollutants. Current research buildings often employ direct mechanical ventilation or simple natural ventilation by opening windows, without treating the incoming fresh air. Outdoor air at sub-zero temperatures enters directly, not only consuming a large amount of heat but also causing significant discomfort due to the direct exposure of people to the cold air. Utility Model Content

[0003] This utility model provides a hybrid ventilation system suitable for mobile buildings, aiming to solve the problems of poor exhaust effect and large heat loss in existing hybrid ventilation systems suitable for mobile buildings.

[0004] This utility model provides a hybrid ventilation system suitable for mobile buildings, including a mechanical ventilation module. The mechanical ventilation module includes: an exhaust heat recovery unit, an air supply duct, an exhaust duct, an exhaust outlet, an air supply outlet, and a pipe electric heater. The exhaust outlet and the air supply outlet are both connected to the polar mobile building. The exhaust heat recovery unit is connected to the pipe electric heater through the air supply pipe. The pipe electric heater is used to heat the air entering the mixed ventilation system and deliver the heated air to the exhaust heat recovery unit through the air supply pipe. The exhaust heat recovery unit is connected to the air outlet through the air supply pipe and is used to deliver the heated air to the polar mobile building through the air supply pipe and the air outlet. The exhaust heat recovery unit is connected to the exhaust outlet through the exhaust pipe. The exhaust heat recovery unit is used to draw air from the polar mobile building into the exhaust heat recovery unit and exchange heat with the heated air. The exhaust outlet is connected to the polar mobile building. The exhaust heat recovery unit is used to discharge the air from the polar mobile building after heat exchange through the exhaust pipe and the exhaust outlet.

[0005] In some possible embodiments, the hybrid ventilation system further includes a first manual valve connected to the air inlet side of the duct electric heater, which is in communication with the atmosphere through the first manual valve. When the first manual valve is open, outside air can enter the exhaust heat recovery unit through the air supply duct.

[0006] In some possible embodiments, the hybrid ventilation system further includes a first electric valve connected to the outlet side of the duct electric heater. The first electric valve is in the open state when the temperature of the gas discharged from the duct electric heater is not less than a preset temperature threshold.

[0007] In some possible embodiments, the hybrid ventilation system further includes a second manual valve located on the outlet side of the duct electric heater. The second manual valve is redundantly connected in parallel with the electric valve. The second manual valve is used to manually open the second manual valve to ensure ventilation when the electric valve fails.

[0008] In some possible embodiments, the hybrid ventilation system further includes a third manual valve connected to the outlet side of the exhaust heat recovery unit and in communication with the outside atmosphere. When the third manual valve is open, the internal air of the polar mobile building can be discharged through the exhaust heat recovery unit and the third manual valve.

[0009] In some possible embodiments, the hybrid ventilation system further includes a second electrically operated valve disposed between the exhaust heat recovery unit's outlet side and the third manually operated valve's inlet side.

[0010] In some possible embodiments, the hybrid ventilation system further includes a fourth manual valve, which is redundantly connected in parallel with the second electric valve. The fourth manual valve is used to manually open the fourth manual valve to ensure ventilation when the second electric valve fails.

[0011] In some possible embodiments, the hybrid ventilation system further includes a natural ventilation module comprising natural supply louvers and natural exhaust louvers, the natural supply louvers being disposed at the lower part of the polar mobile building and the natural exhaust louvers being disposed at the upper part of the polar mobile building.

[0012] In some possible embodiments, the hybrid ventilation system further includes an air preheater for heating the air entering the natural air supply louvers.

[0013] In some possible embodiments, both the supply air duct and the exhaust air duct are inclined relative to the polar mobile building.

[0014] This invention provides a hybrid ventilation system, comprising: an exhaust heat recovery unit, an air supply duct, an exhaust duct, an exhaust outlet, an air supply outlet, and a duct electric heater. The duct electric heater is connected to the air supply duct and is used to heat the air entering the hybrid ventilation system. The heated air is then transported to the exhaust heat recovery unit via the air supply duct. The exhaust heat recovery unit is connected to the air supply outlet via the air supply duct and is used to transport the heated air to the polar mobile building via the air supply duct and the air supply outlet. The exhaust heat recovery unit is also connected to the exhaust outlet via the exhaust duct. It is used to draw air from the polar mobile building into the exhaust heat recovery unit and exchange heat with the heated air. The exhaust heat recovery unit then discharges the heat-exchanged air from the polar mobile building through the exhaust duct. This hybrid ventilation system heats the fresh air to prevent it from becoming too cold; simultaneously, it utilizes exhaust heat recovery to recover heat from the exhaust air and preheat the fresh air, reducing heat consumption. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an embodiment of a hybrid ventilation system suitable for mobile buildings provided by this utility model. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] Figure 1 This invention provides an embodiment of a hybrid ventilation system suitable for mobile buildings. The following detailed description of the hybrid ventilation system for mobile buildings provided by this invention is in conjunction with the accompanying drawings: This utility model provides a hybrid ventilation system suitable for mobile buildings, which can minimize energy consumption while ensuring effective indoor ventilation, making it suitable for polar environments. Specifically, the hybrid ventilation system for mobile buildings mainly includes a mechanical ventilation module, which further includes an exhaust heat recovery unit 1, an air supply duct 2, an exhaust duct 3, an exhaust outlet 4, an air supply outlet 5, and a pipe electric heater 7. Both the exhaust outlet 4 and the air supply outlet 5 are connected to the polar mobile building. The air supply outlet 5 can deliver outside air into the polar mobile building, while the exhaust outlet 4 can exhaust the air in the polar mobile building to the atmosphere, thereby achieving gas exchange between outside air and the polar mobile building, that is, achieving ventilation for the polar mobile building.

[0023] Please refer to Figure 1 ,exist Figure 1In the illustrated embodiment, the duct electric heater 7 is connected to the air supply duct 2. The duct electric heater 7 is primarily used to heat the outside air entering the mixed ventilation system (or the air supply duct 2), ensuring that the air entering the polar mobile building is hot air and preventing cold outside air from entering and causing discomfort to personnel. The air heated by the duct electric heater 7 is then transported through the air supply duct 2 to the exhaust heat recovery unit 1. The exhaust heat recovery unit 1 is also connected to the air outlet 5 through the air supply duct 2, allowing it to further transport the heated air back into the polar mobile building via the air supply duct 2 and the air outlet 5. Simultaneously, the exhaust heat recovery unit 1 is also connected to the exhaust outlet 4 through the exhaust duct 3. The exhaust heat recovery unit 1 can also draw air from the polar mobile building into the exhaust heat recovery unit 1 and exchange heat with the heated air input into the exhaust heat recovery unit 1 through the air supply duct 2. Exhaust vent 4 is connected to the polar mobile building, while exhaust heat recovery unit 1 is connected to the atmosphere through exhaust duct 3 and exhaust vent 4. At this time, exhaust heat recovery unit 1 can discharge the air from the polar mobile building after heat exchange through exhaust duct 3 and exhaust vent 4. It should be noted that various activities of researchers in the polar mobile building generate heat, causing the air temperature inside the building to rise. The cold air entering the polar mobile building through air supply duct 2 needs to be heated before being delivered to the interior. Therefore, this application includes an exhaust heat recovery unit 1, which exchanges heat between the cold air entering from the outside and the hot air that needs to be discharged from the polar mobile building. The hot air that needs to be discharged from the polar mobile building is used to reheat the cold air entering the building, further increasing its temperature before it is input into the interior. This reduces the heating power of the pipe electric heater 7, thus reducing heat and energy consumption.

[0024] Please continue to refer to this. Figure 1 The hybrid ventilation system also includes a first manual valve 6, which is connected to the air inlet side of the duct electric heater 7, allowing the duct electric heater 7 to communicate with the atmosphere. When the hybrid ventilation system is in normal operation, the first manual valve is normally open, allowing outside air to enter the duct electric heater 7 via the air supply duct 2 and further into the exhaust heat recovery unit 1. The hybrid ventilation system also includes an electric valve 8, located on the air outlet side of the duct electric heater 7 and between the duct electric heater 7 and the exhaust heat recovery unit 1. The duct electric heater 7 continuously heats the incoming cold air. When the temperature of the gas discharged from the duct electric heater 7 is not lower than a preset temperature threshold, the electric valve 8 automatically opens to deliver the heated gas to the exhaust heat recovery unit 1 via the electric valve 8 and the air supply duct 2.

[0025] The hybrid ventilation system provided by this utility model also includes a second manual valve 9, which is also located on the air outlet side of the duct electric heater 7. The second manual valve 9 is connected in parallel with the electric valve 8. That is, a bypass is formed at the electric valve 8, and the second manual valve 9 is located on the bypass, making the second manual valve 9 a redundant design. Specifically, when the electric valve is in the normal open state, the second manual valve 9 is usually in the closed state, and the air heated by the duct electric heater 7 enters the exhaust heat recovery unit 1 through the electric valve 8. When the electric valve 8 malfunctions, the second manual valve 9 can be manually opened or closed in an emergency to ensure that the heated air can enter the exhaust heat recovery unit 1 through the second manual valve 9, ensuring the normal operation of the entire ventilation process.

[0026] Similarly, for the air outlet passage, the hybrid ventilation system also includes a third manual valve 14, a second electric valve 15, and a fourth manual valve 16. The third manual valve 14 functions similarly to the first manual valve 6; it is installed on the exhaust duct 3 to control the connection between the exhaust duct 3 and the external atmosphere. When the third manual valve 14 is open, the internal air of the polar mobile building can be discharged through the exhaust heat recovery unit 1, the exhaust duct 3, and the third manual valve 14. The second electric valve 15 is installed on the outlet side of the exhaust heat recovery unit 1 and the inlet side of the third manual valve 14. Similar to the first electric valve 8, the second electric valve 15 can automatically open or close to control the opening or closing of the air outlet passage. The fourth manual valve 16 is connected redundantly in parallel with the second electric valve 15. When the second electric valve 15 fails, the fourth manual valve can be manually opened to ensure unobstructed airflow and ventilation.

[0027] The hybrid ventilation system provided by this utility model also includes a controller 10, which is mainly used to control the opening and closing of the duct electric heater 7, the first electric valve 8, the second electric valve 15, and the exhaust heat recovery unit 1. For example, when ventilation is required, the controller 10 first turns on the duct electric heater 7 to heat the incoming outside air. After the air is heated to a certain temperature, the controller 10 then sequentially opens the first electric valve 8 and the exhaust heat recovery unit 1, delivering the heated cold air to the exhaust heat recovery unit 1. After heat exchange in the exhaust heat recovery unit 1, the temperature is further increased before being sent into the room. Similarly, when ventilation is stopped, the controller 10 can sequentially close the exhaust heat recovery unit 1, the first electric valve 8, and the duct electric heater 7, closing the air intake channel and stopping ventilation. Likewise, when it is necessary to exhaust indoor air, the controller 10 can control the second electric valve 15 to open the exhaust passage for ventilation.

[0028] Please continue to refer to this. Figure 1The hybrid ventilation system for mobile buildings provided by this utility model also includes a natural ventilation module. Since the natural ventilation module is significantly affected by natural sound elements and difficult to control, it is typically only used for ventilation when the outdoor environment is not harsh. However, because polar environments are mostly characterized by extreme cold and wind, mechanical ventilation modules consisting of exhaust heat recovery units, supply ducts, exhaust ducts, exhaust outlets, supply outlets, and pipe electric heaters are the primary ventilation method. The natural ventilation module provided by this utility model mainly includes natural supply louvers 11, an air preheater 12, and natural exhaust louvers 13. Since cold air from outside flows into the polar mobile building through the natural supply louvers 11, these louvers are located at the lower part of the polar mobile building. The air preheater 12 functions similarly to the pipe electric heater 7, heating the cold air entering the polar mobile building and then delivering the heated air into the building. Since hot air is less dense than cold air, hot air is at the top and cold air is at the bottom; natural ventilation louvers 13 for exhausting hot air are installed on the upper part of the polar mobile building to exhaust the hot air located above.

[0029] When the mobile polar structure is not used for an extended period, the first manual valve 6 and the third manual valve 14 need to be closed to isolate the air supply pipe 2 and exhaust pipe 3 from the outside environment, preventing condensation from forming in the pipes and causing them to freeze in low-temperature conditions. Simultaneously, the air supply pipe 2 and exhaust pipe 3 in this invention are inclined relative to the mobile polar structure to facilitate condensate drainage. The hybrid ventilation system adopted in this invention includes both mechanical and natural ventilation modes. All supplied fresh air is heated to a suitable temperature to avoid excessive coldness. The mechanical ventilation mode employs exhaust heat recovery, which recovers the heat from the exhaust air to preheat the fresh air, reducing heat consumption. An automatic control system ensures that the heat recovery unit is isolated from cold outdoor air when not in operation, preventing freezing damage.

[0030] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0031] The above provides a detailed description of a hybrid ventilation system suitable for mobile buildings provided by the embodiments of this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hybrid ventilation system suitable for mobile buildings, characterized in that, It includes a mechanical ventilation module, which comprises: an exhaust heat recovery unit, an air supply duct, an exhaust duct, an exhaust outlet, an air supply outlet, and a pipe electric heater. The exhaust outlet and the air supply outlet are both connected to the polar mobile building. The duct electric heater is connected to the air supply duct. The duct electric heater is used to heat the air entering the mixed ventilation system and deliver the heated air to the exhaust heat recovery unit through the air supply duct. The exhaust heat recovery unit is connected to the air outlet through the air supply duct. The exhaust heat recovery unit is used to deliver the heated air to the polar mobile building through the air supply duct and the air outlet. The exhaust heat recovery unit is connected to the exhaust outlet through the exhaust pipe. The exhaust heat recovery unit is used to draw air from the polar mobile building into the exhaust heat recovery unit and exchange heat with the heated air. The exhaust outlet is connected to the polar mobile building. The exhaust heat recovery unit is used to discharge the air from the polar mobile building after heat exchange through the exhaust pipe.

2. The hybrid ventilation system for mobile buildings according to claim 1, characterized in that, The hybrid ventilation system also includes a first manual valve, which is connected to the air inlet side of the duct electric heater. The duct electric heater is connected to the atmosphere through the first manual valve. When the first manual valve is open, outside air can enter the exhaust heat recovery unit through the air supply pipe.

3. The hybrid ventilation system for mobile buildings according to claim 2, characterized in that, The hybrid ventilation system also includes a first electric valve, which is connected to the air outlet side of the duct electric heater. When the temperature of the gas discharged from the duct electric heater is not less than a preset temperature threshold, the first electric valve is in the open state.

4. The hybrid ventilation system for mobile buildings according to claim 3, characterized in that, The hybrid ventilation system also includes a second manual valve, which is located on the air outlet side of the duct electric heater. The second manual valve is connected in parallel with the electric valve in a redundant manner. The second manual valve is used to manually open the second manual valve to ensure ventilation when the electric valve fails.

5. The hybrid ventilation system for mobile buildings according to claim 1, characterized in that, The hybrid ventilation system also includes a third manual valve, which is connected to the outlet side of the exhaust heat recovery unit and communicates with the outside atmosphere. When the third manual valve is in the open state, the internal air of the polar mobile building can be discharged through the exhaust heat recovery unit and the third manual valve.

6. The hybrid ventilation system for mobile buildings according to claim 5, characterized in that, The hybrid ventilation system also includes a second electric valve, which is located between the exhaust heat recovery unit's outlet side and the third manual valve's inlet side.

7. The hybrid ventilation system for mobile buildings according to claim 6, characterized in that, The hybrid ventilation system also includes a fourth manual valve, which is redundantly connected in parallel with the second electric valve. The fourth manual valve is used to manually open the fourth manual valve to ensure ventilation when the second electric valve fails.

8. The hybrid ventilation system for mobile buildings according to claim 1, characterized in that, The hybrid ventilation system also includes a natural ventilation module, which includes natural air supply louvers and natural air exhaust louvers. The natural air supply louvers are located at the lower part of the polar mobile building, and the natural air exhaust louvers are located at the upper part of the polar mobile building.

9. The hybrid ventilation system for mobile buildings according to claim 8, characterized in that, The hybrid ventilation system also includes an air preheater for heating the air entering the natural air supply louvers.

10. The hybrid ventilation system for mobile buildings according to claim 1, characterized in that, Both the air supply duct and the air exhaust duct are inclined relative to the polar mobile building.

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