Spiral convection type ventilation and heat preservation device for cylindrical sauna room

Abstract

The utility model relates to the technical field of sauna rooms, in particular to a spiral convection type ventilation and heat preservation device for a cylindrical sauna room, which comprises a room body with a room door, an air inlet pipe arranged in the room body and used for conveying fresh air into the room body, and an air outlet pipe arranged in the room body and used for conveying fresh air into the room body, the fan is arranged in the air inlet pipe and is used for blowing fresh air into the air inlet pipe; the spiral flow guide plate is arranged in the air inlet pipe and used for enabling the fresh air to spirally rise in the air inlet pipe, and the spiral flow guide plate is hollow and forms an air flow channel; one end of the first exhaust pipe penetrates through the gas inlet pipe and is communicated with the gas flow channel; heat exchange is carried out between low-temperature fresh air flowing in the air inlet pipe and hot air flowing in the air flow channel through the pipe wall of the spiral flow guide plate, the fresh air is preheated before entering the room body, and part of heat is released by the exhausted hot air.

Description

Technical Field

[0001] This utility model relates to the field of sauna technology, and in particular to a spiral convection ventilation and heat preservation device for a cylindrical sauna. Background Technology

[0002] Saunas, as recreational facilities that provide a high-temperature environment, are typically equipped with heating equipment and ventilation systems. The ventilation system is crucial for maintaining air quality, humidity, and the comfort and safety of users within the sauna.

[0003] However, current sauna ventilation systems typically ventilate by directly expelling hot air from the sauna while simultaneously drawing in fresh outside air. While this method achieves air exchange, the higher temperature of the expelled air and the lower temperature of the incoming fresh air result in significant heat loss during ventilation. To maintain the set temperature within the sauna, the heating equipment must continuously reheat the incoming cold air, significantly increasing energy consumption and consequently raising the sauna's operating costs. This direct exhaust and intake method fails to fully utilize the heat carried by the expelled air, leading to energy waste.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a spiral convection ventilation and heat preservation device for cylindrical sauna rooms.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cylindrical sauna room spiral convection ventilation and heat preservation device, including a room body with a door, a heating device installed inside the room, and further including:

[0007] An air intake pipe, installed inside the room, is used to supply fresh air into the room;

[0008] A fan, installed inside the intake pipe, is used to blow fresh air into the intake pipe;

[0009] A spiral guide plate is installed inside the air intake pipe to make the fresh air spiral upward inside the air intake pipe. The spiral guide plate is hollow and forms a gas flow channel.

[0010] The first exhaust pipe has one end passing through the intake pipe and connected to the gas flow channel, and the other end is located inside the chamber, used to introduce air from inside the chamber into the gas flow channel.

[0011] The second exhaust pipe has one end connected to the gas flow channel and the other end extending to the outside of the chamber, and is used to exhaust the air in the gas flow channel from the chamber.

[0012] A fan is installed at one end of the second exhaust pipe extending outside the room, and is used to draw air from inside the room and discharge it through the first exhaust pipe, the gas flow channel and the second exhaust pipe.

[0013] Unlike existing technologies that directly exhaust hot air outdoors, this invention creates a gas flow channel by incorporating a spiral guide plate within the air intake pipe. Hot air from the sauna is then introduced into this gas flow channel through a first exhaust pipe. This allows for heat exchange between the cool, fresh air flowing in the air intake pipe and the hot air flowing in the gas flow channel, facilitated by the wall of the spiral guide plate. The fresh air is preheated before entering the sauna, while the exhaust air releases some of its heat.

[0014] When using the spiral convection ventilation and heat preservation device in this cylindrical sauna, first open the door to allow the user to enter the room, then start the heating equipment to heat the interior. Simultaneously, the ventilation system begins operation. A fan blows fresh outside air into the intake duct. Guided by the spiral guide plate, the fresh air rises along a spiral path within the intake duct. At the same time, the fan starts, drawing hot air from the room. This hot air enters the gas flow channel inside the spiral guide plate through the first exhaust pipe and flows along the channel. During the flow of fresh air through the inner space of the intake duct (outside the spiral guide plate) and hot air through the inner space of the gas flow channel, heat is transferred from the hot air to the fresh air through the wall of the spiral guide plate. The temperature of the fresh air is significantly increased before it enters the room through the air inlet above the intake duct. The hot air (which has cooled slightly after heat exchange) is then exhausted from the room by the fan through the second exhaust pipe.

[0015] In this way, the fresh air entering the room is no longer cold, but preheated, which greatly reduces the energy required for the heating equipment to reheat this air, thus achieving energy-saving and heat-insulating effects. The spiral baffle design not only guides airflow but also increases the surface area and contact time for heat exchange, improving heat exchange efficiency. The coordinated operation of the fan and blower ensures the smooth operation of the air intake and exhaust system, maintaining air circulation and quality within the room.

[0016] Furthermore, both the intake pipe and the spiral guide plate are made of thermally conductive materials.

[0017] Furthermore, the room is cylindrical in shape.

[0018] Furthermore, the outer side of the spiral guide plate is fixedly connected to the inner wall of the intake pipe.

[0019] Furthermore, a shaft is provided in the middle of the spiral guide plate, and the shaft is fixedly connected to the spiral guide plate.

[0020] Furthermore, the fan is rotatably mounted at the bottom end of the shaft.

[0021] Furthermore, the air intake pipe is installed inside the chamber via a clamp, and mounting holes are provided on both sides of the clamp, through which bolts are threaded to the chamber.

[0022] Furthermore, an air inlet is provided at the top of the air intake pipe, through which preheated air is discharged into the room.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] A spiral guide plate is installed inside the air intake pipe to form a gas flow channel. Hot air from the sauna is introduced into this channel through the first exhaust pipe and then discharged through the second exhaust pipe and a fan. During this process, the fresh air blown in by the fan in the intake pipe and the hot air drawn into the sauna by the fan in the gas flow channel undergo thorough heat exchange. The fresh air is preheated before entering the sauna, while the heat from the exhaust gas is recovered and reused. This design significantly reduces the energy consumption required for the heating equipment to reheat the newly entering air, effectively solving the problem of high energy consumption in existing sauna ventilation systems, improving energy efficiency, and reducing operating costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a spiral convection ventilation and heat preservation device for a cylindrical sauna room.

[0026] Figure 2 This is a schematic diagram of the installation position of the air inlet pipe in a spiral convection ventilation and heat preservation device for a cylindrical sauna room.

[0027] Figure 3 This is a schematic diagram of the overall structure of the air inlet pipe in a spiral convection ventilation and heat preservation device for a cylindrical sauna room.

[0028] Figure 4 This is a schematic diagram of a spiral guide plate in a spiral convection ventilation and heat preservation device for a cylindrical sauna room.

[0029] Figure 5 This is a schematic diagram of the gas flow channel in a spiral convection ventilation and heat preservation device for a cylindrical sauna.

[0030] In the diagram: 1. Room body; 2. Room door; 3. Air inlet pipe; 4. Fan; 5. First exhaust pipe; 6. Second exhaust pipe; 7. Spiral guide plate; 8. Gas flow channel; 9. Fan; 10. Clamp; 11. Mounting hole; 12. Heating equipment; 13. Air inlet; 14. Shaft. Detailed Implementation

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] As a leisure facility providing a high-temperature environment, the design of the ventilation system in a sauna is crucial for maintaining the internal environment and ensuring safe use. Traditional sauna ventilation methods typically involve directly expelling hot air from inside while simultaneously drawing in cold air from outside. This results in significant heat loss, requiring heating equipment to consume more energy to maintain the temperature, thus increasing operating costs. To address this issue, this invention proposes a cylindrical sauna spiral convection ventilation and insulation device. Through ingenious structural design, this device achieves heat exchange between air intake and exhaust, thereby significantly reducing energy consumption.

[0033] like Figures 1 to 5 The cylindrical sauna room spiral convection ventilation and heat preservation device shown includes a room body 1 with a door 2, a heating device 12 installed inside the room body 1, and further includes:

[0034] Air intake pipe 3 is installed inside the chamber 1 and is used to supply fresh air into the chamber 1;

[0035] Fan 4 is installed inside the air intake pipe 3 to blow fresh air into the air intake pipe 3;

[0036] A spiral guide plate 7 is installed inside the air intake pipe 3 to make fresh air spiral upward inside the air intake pipe 3. The spiral guide plate 7 is hollow and forms a gas flow channel 8.

[0037] The first exhaust pipe 5 has one end passing through the air inlet pipe 3 and connected to the gas flow channel 8, and the other end is set inside the chamber 1 to introduce air from the chamber 1 into the gas flow channel 8.

[0038] The second exhaust pipe 6 is connected at one end to the gas flow channel 8 and extends to the outside of the chamber 1, and is used to exhaust the air in the gas flow channel 8 from the chamber 1.

[0039] The fan 9 is located at one end of the second exhaust pipe 6 extending to the outside of the room 1, and is used to draw air from the room 1 and discharge it through the first exhaust pipe 5, the gas flow channel 8 and the second exhaust pipe 6.

[0040] To achieve ventilation and heat preservation functions, the device also includes an air inlet pipe 3 installed inside the chamber 1, see [link / reference]. Figure 2 and Figure 3 The air intake pipe 3 is used to deliver fresh air into the chamber 1. A fan 4 is installed inside the air intake pipe 3, see [link / reference]. Figure 4The fan 4 is used to generate airflow, blowing fresh air into the intake pipe 3. Furthermore, a spiral guide plate 7 is also provided inside the intake pipe 3, see [link to relevant documentation]. Figure 4 and Figure 5 The spiral guide vane 7 has a spiral structure, and its function is to guide the fresh air entering the intake pipe 3 to flow upward along a spiral path. As an important structural feature, the spiral guide vane 7 is designed to be hollow, and an independent gas flow channel 8 is formed inside it, see [link to relevant documentation]. Figure 5 .

[0041] To facilitate heat exchange, the device also includes an exhaust pipe assembly for discharging air from the chamber 1. This exhaust pipe assembly includes a first exhaust pipe 5 and a second exhaust pipe 6. See also... Figure 2 and Figure 3 One end of the first exhaust pipe 5 passes through the intake pipe 3 and connects to the gas flow channel 8 inside the spiral guide plate 7. The other end is located inside the chamber 1 to collect hot air from inside the chamber 1. One end of the second exhaust pipe 6 connects to the gas flow channel 8, and the other end extends to the outside of the chamber 1 to exhaust air from the gas flow channel 8. To drive the exhaust process, a fan 9 is installed at the end of the second exhaust pipe 6 extending outside the chamber 1. (See [reference]) Figure 3 The fan 9 is used to draw air from the chamber 1 and discharge it through the first exhaust pipe 5, the gas flow channel 8 and the second exhaust pipe 6 in sequence.

[0042] Unlike existing technologies that directly exhaust hot air outdoors, this invention creates a gas flow channel 8 by installing a spiral guide plate 7 inside the air intake pipe 3, and introduces the hot air from the sauna room into this gas flow channel 8 through the first exhaust pipe 5. In this way, heat exchange occurs between the low-temperature fresh air flowing in the air intake pipe 3 and the hot air flowing in the gas flow channel 8 through the wall of the spiral guide plate 7. The fresh air is preheated before entering the sauna room 1, while the exhaust hot air releases some of its heat.

[0043] When using the spiral convection ventilation and heat preservation device for this cylindrical sauna, first open the door 2 to allow the user to enter the room 1, then start the heating device 12 to heat the interior of the room 1. Simultaneously, the ventilation system begins operation. Fan 4 blows fresh outside air into the intake pipe 3. Guided by the spiral guide plate 7, the fresh air rises along the spiral path within the intake pipe 3. At the same time, fan 9 starts, drawing hot air from the room 1. The hot air enters the gas flow channel 8 inside the spiral guide plate 7 through the first exhaust pipe 5 and flows along the gas flow channel 8. During the flow of fresh air through the interior space of the intake pipe 3 (outside the spiral guide plate 7) and hot air through the interior space of the gas flow channel 8, heat is transferred from the hot air to the fresh air through the wall of the spiral guide plate 7. The temperature of the fresh air is significantly increased before it enters the room 1 through the air inlet 13 above the intake pipe 3. The hot air (with a slightly lower temperature) after heat exchange is then exhausted outside the room 1 by fan 9 through the second exhaust pipe 6.

[0044] In this way, the fresh air entering chamber 1 is no longer cold, but preheated, which greatly reduces the energy required for heating equipment 12 to reheat this air, thus achieving energy-saving and heat-preserving effects. The design of the spiral guide plate 7 not only guides the airflow but also increases the surface area and contact time for heat exchange, improving heat exchange efficiency. The coordinated operation of fan 4 and blower 9 ensures the smooth operation of the air intake and exhaust systems, maintaining air circulation and quality within chamber 1.

[0045] In one embodiment of this utility model, both the intake pipe 3 and the spiral guide plate 7 are made of heat-conducting materials.

[0046] In practice, the air intake pipe 3 and the spiral guide plate 7 are made of thermally conductive materials, which allows the hot air flowing through the gas flow channel 8 to transfer its heat to the fresh air flowing through the air intake pipe 3 more efficiently. This further enhances the preheating effect of the fresh air, resulting in a higher temperature of the fresh air entering the chamber 1, thereby reducing the amount of additional heating required by the heating equipment 12 to maintain the temperature inside the chamber 1.

[0047] In one embodiment of this utility model, the chamber 1 is cylindrical.

[0048] In practice, the chamber 1 adopts a cylindrical design, which differs from the traditional square sauna structure, giving the device a unique appearance and recognizability. Although the shape itself does not directly contribute to the heat exchange mechanism between air intake and exhaust, as the outer shell housing the entire ventilation and insulation system, its structural form is an important component of the overall device.

[0049] In one embodiment of this utility model, the outer side of the spiral guide plate 7 is fixedly connected to the inner wall of the air intake pipe 3.

[0050] In practice, the outer side of the spiral guide plate 7 is fixedly connected to the inner wall of the intake pipe 3, ensuring that fresh air can flow stably along the spiral path formed by the spiral guide plate 7 within the intake pipe 3, thereby achieving an effective guiding effect. A stable guiding path is a prerequisite for ensuring sufficient heat exchange between the fresh air and the hot air in the gas flow channel 8.

[0051] In one embodiment of this utility model, a shaft 14 is provided in the middle of the spiral guide plate 7, and the shaft 14 is fixedly connected to the spiral guide plate 7.

[0052] In implementation, the overall structural rigidity of the spiral guide plate 7 is enhanced by setting a shaft 14 in the middle and fixing it thereto. This helps prevent the spiral guide plate 7 from deforming or bending under the impact of airflow or its own gravity, ensuring that its spiral shape and position within the intake pipe 3 are maintained. A stable spiral guide plate 7 can more reliably guide the flow of fresh air, ensuring the efficiency and stability of the heat exchange process.

[0053] In one embodiment of this utility model, the fan 4 is rotatably mounted at the bottom end of the shaft 14.

[0054] The fan 4, located within the intake pipe 3, is rotatably mounted at the bottom end of a shaft 14 situated in the center of the spiral guide plate 7. This rotatable mounting means that the impeller or rotor of the fan 4 can rotate freely relative to the shaft 14, typically achieved through bearings or similar rotating support structures. The shaft 14 provides a stable mounting base for the fan 4.

[0055] Therefore, by rotatably mounting the fan 4 at the bottom end of the shaft 14, a compact and structurally sound installation method is achieved. The shaft 14 not only supports the spiral guide plate 7 but also serves as the mounting point for the fan 4, simplifying the internal structure. This arrangement ensures that the fan 4 can effectively blow fresh air directly into the bottom of the intake pipe 3 and allow it to flow upwards along the path guided by the spiral guide plate 7, thus guaranteeing the normal operation of the entire ventilation and heat exchange system.

[0056] In one embodiment of this utility model, the air intake pipe 3 is installed inside the housing 1 by a clamp 10. The clamp 10 has mounting holes 11 on both sides, and bolts pass through the mounting holes 11 to be threadedly connected to the housing 1.

[0057] In practice, a combination of clamps 10, mounting holes 11, and bolts is used to install the air intake pipe 3, providing a reliable and easy-to-operate fixing solution. This installation method ensures that the air intake pipe 3 is stably supported within the chamber 1, preventing loosening or displacement and guaranteeing the structural stability of the entire ventilation system. Simultaneously, the bolted connection makes the installation and removal of the air intake pipe relatively convenient, facilitating maintenance and repair.

[0058] As one embodiment of this utility model, an air inlet 13 is provided at the top of the air inlet pipe 3, and the preheated air is discharged into the chamber 1 through the air inlet 13.

[0059] In this cylindrical sauna room's spiral convection ventilation and heat preservation device, an air inlet 13 is provided at the top of the air inlet pipe 3. This air inlet 13 is the outlet for the fresh air, preheated by the air inlet pipe 3 and the spiral guide plate 7, to finally enter the interior of the room 1. Through this air inlet 13, the preheated fresh air is guided and discharged into the inner cavity of the room 1. As a preferred arrangement, the air inlet 13 can discharge the preheated air into the top area inside the room 1.

[0060] Working principle of this utility model:

[0061] When using the spiral convection ventilation and heat preservation device for this cylindrical sauna, first open the door 2 to allow the user to enter the room 1, then start the heating device 12 to heat the interior of the room 1. Simultaneously, the ventilation system begins operation. Fan 4 blows fresh outside air into the intake pipe 3. Guided by the spiral guide plate 7, the fresh air rises along the spiral path within the intake pipe 3. At the same time, fan 9 starts, drawing hot air from the room 1. The hot air enters the gas flow channel 8 inside the spiral guide plate 7 through the first exhaust pipe 5 and flows along the gas flow channel 8. During the flow of fresh air through the interior space of the intake pipe 3 (outside the spiral guide plate 7) and hot air through the interior space of the gas flow channel 8, heat is transferred from the hot air to the fresh air through the wall of the spiral guide plate 7. The temperature of the fresh air is significantly increased before it enters the room 1 through the air inlet 13 above the intake pipe 3. The hot air (with a slightly lower temperature) after heat exchange is then exhausted outside the room 1 by fan 9 through the second exhaust pipe 6.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical sauna room spiral convection ventilation and heat preservation device, comprising a room body (1) with a door (2), wherein a heating device (12) is installed inside the room body (1), characterized in that, Also includes: An air intake pipe (3) is installed inside the chamber (1) for supplying fresh air into the chamber (1); A fan (4) is installed inside the air intake pipe (3) to blow fresh air into the air intake pipe (3); A spiral guide plate (7) is disposed inside the air intake pipe (3) to make the fresh air spiral upward inside the air intake pipe (3). The spiral guide plate (7) is hollow and forms a gas flow channel (8). The first exhaust pipe (5) has one end passing through the intake pipe (3) and connected to the gas flow channel (8), and the other end is located inside the chamber (1) for introducing air from the chamber (1) into the gas flow channel (8). The second exhaust pipe (6) is connected at one end to the gas flow channel (8) and extends to the outside of the chamber (1) to exhaust the air in the gas flow channel (8) from the chamber (1); A fan (9) is installed at one end of the second exhaust pipe (6) extending to the outside of the room (1) to draw air from the room (1) and discharge it through the first exhaust pipe (5), the gas flow channel (8) and the second exhaust pipe (6).

2. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 1, characterized in that, The air intake pipe (3) and the spiral guide plate (7) are both made of thermally conductive materials.

3. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 1, characterized in that, The chamber (1) is cylindrical.

4. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 1, characterized in that, The outer side of the spiral guide plate (7) is fixedly connected to the inner wall of the air intake pipe (3).

5. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 4, characterized in that, A shaft (14) is provided in the middle of the spiral guide plate (7), and the shaft (14) is fixedly connected to the spiral guide plate (7).

6. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 5, characterized in that, The fan (4) is rotatably mounted at the bottom end of the shaft (14).

7. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 1, characterized in that, The air intake pipe (3) is installed inside the chamber (1) by a clamp (10). The clamp (10) has mounting holes (11) on both sides, and bolts pass through the mounting holes (11) and are threaded to the chamber (1).

8. The cylindrical sauna room spiral convection ventilation and heat preservation device according to claim 1, characterized in that, The top of the air inlet pipe (3) is provided with an air inlet (13), and the preheated air is discharged into the chamber (1) through the air inlet (13).

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