Uniform temperature control device based on cyclone air supply

Abstract

The utility model discloses a kind of uniform temperature control device based on cyclone air supply, belong to temperature control equipment technical field, including air supply dry pipe, set on air supply dry pipe air supply branch pipe, set in the cyclone cloth distributor of air supply branch pipe tail end and return air inlet. One end of air supply dry pipe is connected with constant temperature and humidity unit soft, the other end is provided with several annular distribution or return shape symmetrical distribution air supply branch pipe, and cyclone cloth distributor includes air intake interface, vortex generating chamber and air outlet, air intake interface one end is connected with air supply branch pipe flange, another end is connected with vortex generating chamber. The utility model is through being provided with annular symmetrical air supply pipeline and cyclone cloth distributor, formed uniform temperature field, solved the temperature stratification and airflow dead angle of conventional air supply mode, cause the problem of irreversible size change such as warping, shrinkage caused by the difference of microenvironment of foamed material in different positions in storage space.

Description

Technical Field

[0001] This utility model relates to the field of temperature control equipment technology, and in particular to a uniform temperature control device based on swirling air delivery. Background Technology

[0002] Foamed materials, such as polystyrene (EPS) and polyurethane (PU), are extremely sensitive to changes in ambient temperature due to their microstructure. During storage, if there is temperature stratification or uneven local temperature, different parts of the material will have different moisture absorption rates and thermal expansion and contraction effects, which will lead to irreversible dimensional changes such as warping and shrinkage, seriously affecting product quality and performance.

[0003] Traditional temperature-controlled rooms used for storing foamed materials often employ a combination of ordinary axial flow fans and louvered air vents. The airflow is in a straight jet pattern, which can easily create localized areas of excessive cooling or heating in the storage area. At the same time, corners far from the air vents are prone to temperature dead zones, causing uneven shrinkage or expansion of the foamed materials in different locations due to environmental differences. This makes it difficult to meet the stringent requirements of foamed materials for a uniform temperature environment throughout the entire area.

[0004] In addition, to achieve basic temperature coverage, high-speed air delivery is often required, which not only increases the energy consumption of the fan, but may also cause the foamed material to lose surface moisture or suffer structural damage due to the excessively fast airflow. Temperature stability is easily affected, making it difficult to maintain the precise microenvironment required for long-term storage of foamed materials. There is a significant gap between the energy efficiency and reliability requirements of the foamed material storage process. Utility Model Content

[0005] The purpose of this invention is to provide a uniform temperature control device based on swirl air delivery, which solves the problems in the prior art and addresses the issue that traditional air delivery methods easily generate temperature stratification and airflow dead zones, leading to irreversible dimensional changes such as warping and shrinkage caused by differences in the microenvironment of foamed materials in different locations within the storage space.

[0006] To achieve the above objectives, this utility model provides a uniform temperature control device based on swirl air supply. The temperature control device is softly connected to a constant temperature and humidity unit and electrically connected to a distributed sensor. It includes an air supply main pipe, an air supply branch pipe installed on the air supply main pipe, a swirl distributor installed at the end of the air supply branch pipe, and a return air outlet.

[0007] Preferably, one end of the main air supply duct is connected to the constant temperature and humidity unit via a flexible connection, and the other end is provided with several air supply branch ducts distributed in a ring or symmetrically in a loop shape. Each air supply branch duct is connected to a vortex distributor at its tail end.

[0008] Preferably, the vortex distributor includes an air inlet, a vortex generating chamber, and an air outlet. One end of the air inlet is connected to the flange of the air supply branch pipe, and the other end is connected to the vortex generating chamber.

[0009] Preferably, the vortex generating chamber includes a main shaft and several spiral guide vanes disposed on the main shaft. The main shaft is connected to the inner wall of the vortex generating chamber and is placed in the air inlet direction. The angle between the spiral guide vanes and the main shaft is 25° to 45°.

[0010] Preferably, the exhaust port is a gradually narrowing and expanding exhaust port, including a narrowing section, a throat, and a expanding section, wherein the ratio of the length of the narrowing section, the length of the throat, and the length of the expanding section is (1.5~2.5):(0.5~1):(2.5~3.5).

[0011] Preferably, the return air vent is connected to an exhaust duct, and the exhaust duct is flexibly connected to the constant temperature and humidity unit.

[0012] Preferably, the air supply branch pipe and the air supply branch pipe are phenolic foam air ducts or rubber and plastic insulated air ducts, and the axis of the cyclone distributor is perpendicular to the horizontal plane.

[0013] Therefore, the present invention employs the above-mentioned uniform temperature control device based on swirling airflow, which has the following beneficial effects: This invention, by employing a symmetrical annular air supply duct and a vortex distributor, creates a uniform temperature field. This solves the problem of temperature stratification and dead air zones inherent in traditional air supply methods, which lead to irreversible dimensional changes such as warping and shrinkage due to differences in the microenvironment of foamed materials at different locations within the storage space. The vortex distributor of this invention generates a wide-coverage, highly induced rotating airflow, eliminating temperature differences between upper and lower sections and local dead zones. This ensures that the foamed material, from the top to the bottom of the shelf and from the center to the corners, is in a consistent temperature environment, effectively suppressing dimensional instability caused by local environmental fluctuations.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the placement of the main air supply pipe and the branch air supply pipe of this utility model; Figure 2 This is a schematic diagram of the cyclone distributor of this utility model; Figure 3 This is a schematic diagram of the spiral guide vane of this utility model; Labeling instructions 1. Main air supply duct; 2. Branch air supply duct; 3. Swirl distributor; 31. Air inlet; 32. Vortex generator chamber; 33. Exhaust outlet; 34. Main shaft; 35. Spiral guide vane; 36. Converging section; 37. Throat; 38. Expanding section. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] The specific connection methods for each component all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the existing field. The machinery, parts, and equipment all adopt conventional models in the existing technology. In addition, the circuit connections adopt conventional connection methods in the existing technology, which will not be described in detail here. The constant temperature and humidity unit and distributed sensors mentioned in this article are common models in the existing technology and can be replaced according to actual needs.

[0019] As per the instruction manual Figure 1-3 As shown, this utility model discloses a uniform temperature control device based on swirl-flow air delivery. It is softly connected to a constant temperature and humidity unit and electrically connected to a distributed sensor. The constant temperature and humidity unit first processes the air, adjusting it to the target temperature parameters. The distributed sensor monitors the temperature data of each area within the space in real time and transmits the data to the control system. If the temperature deviates from the set value, the control system can promptly adjust the operating status of the constant temperature and humidity unit or the air delivery parameters of the swirl-flow air delivery device 3. The device includes a main air supply pipe 1, a branch air supply pipe 2 installed on the main air supply pipe 1, a swirl-flow air delivery device 3 installed at the end of the branch air supply pipe 2, and a return air inlet.

[0020] The main air supply duct 1 serves as the main channel for airflow delivery. One end of it connects to the air outlet of the constant temperature and humidity unit via a flexible joint to isolate vibration. The other end of the main air supply duct 1 extends to the space below the ceiling of the temperature control room, where several branch air supply ducts 2 are connected. These branch air supply ducts 2 are arranged in a ring network or a symmetrical layout (such as an "I" shape). In this embodiment, a ring network is used. This distribution method ensures that the airflow is evenly distributed from the main air supply duct 1 to each branch air supply duct 2, laying the foundation for uniform air supply to each area and avoiding problems such as insufficient or excessive airflow supply in some areas due to uneven distribution of branch ducts. Both the main air supply duct 1 and the branch air supply ducts 2 are made of phenolic foam or rubber-plastic insulated ducts, which have excellent thermal insulation performance, effectively reducing temperature loss of airflow during delivery and ensuring stable airflow temperature upon reaching the vortex distributor 3. At the same time, they are lightweight, easy to install, and have good fireproof and moisture-proof properties, with a long service life.

[0021] The air supply branch pipe 2 receives the airflow delivered by the air supply main pipe 1 and delivers it to the vortex distributor 3. The tail end of each air supply branch pipe 2 is connected to the vortex distributor 3 to realize the transmission of airflow.

[0022] The vortex distributor 3 mainly consists of three parts: an air inlet 31, a vortex generating chamber 32, and an air outlet 33. One end of the air inlet 31 is connected to the air supply branch pipe 2 with a flange that has good sealing performance, which can effectively prevent airflow leakage at the connection and ensure that the airflow enters the vortex distributor 3 stably, maintaining stable air pressure and air volume. The vortex generating chamber 32 contains a main shaft 34 and several helical guide vanes 35. The main shaft 34 is connected to the inner wall of the vortex generating chamber 32 and is positioned in the same direction as the air inlet, providing support for the helical guide vanes 35. The angle between the helical guide vanes 35 and the main shaft 34 is set to 25° to 45°, which ensures that the airflow is effectively guided to form a stable vortex, while avoiding excessive airflow resistance due to an excessively large angle, which would increase energy consumption, or insufficient vortex formation due to an excessively small angle, which would affect the uniformity of airflow. When the airflow enters the vortex generating chamber 32, it is guided by the helical guide vanes 35 to change from linear motion to rotating vortex motion, which is beneficial for subsequent uniform diffusion of airflow.

[0023] The exhaust vent 33 adopts a tapered-expanding design, i.e., a Laval tubular structure, mainly consisting of a tapered section 36, a throat 37, and an expanding section 38. The ratio of the lengths of the tapered section 36, the throat 37, and the expanding section 38 is (1.5~2.5):(0.5~1):(2.5~3.5). The airflow first passes through the tapered section 36, where the cross-section gradually decreases and the velocity continuously increases. Upon reaching the throat 37, the velocity reaches its maximum, achieving airflow acceleration. Subsequently, it enters the expanding section 38, where the cross-section gradually increases and the velocity slowly decreases, but the airflow diffusion range continuously expands. Through this process, the swirling airflow not only obtains sufficient velocity to ensure delivery to a distant area but also diffuses rapidly after exhaust, effectively inducing mixing with the surrounding air and achieving a large-scale, gentle air coverage, avoiding the localized temperature unevenness caused by direct airflow from traditional vents. In addition, the axis of the swirl distributor 3 is perpendicular to the horizontal plane, which is conducive to the uniform diffusion of airflow in the vertical direction and better coverage of the target space. It is especially suitable for storage environments with high ceilings or requiring three-dimensional temperature control. Return air vents are typically located in the lower part of the space or in areas where airflow tends to accumulate. The return air vent is connected to an exhaust duct, the other end of which is flexiblely connected to the temperature and humidity control unit, forming a complete air circulation loop. Used air enters the exhaust duct through the return air vent and is returned to the temperature and humidity control unit for further processing. After cooling, heating, humidification, or dehumidification, the air is transformed back into a temperature and humidity-controlled airflow that meets the requirements. This air is then transported to the storage space through the main air supply duct 1, branch air supply duct 2, and vortex distributor 3, achieving air recycling and ensuring the air within the space remains at a stable temperature, preventing outside air from directly entering and disturbing the internal environment. Therefore, the present invention adopts a uniform temperature control device based on swirl air supply with the above-mentioned structure. By setting up annular symmetrical air supply pipes and swirl distributors, a uniform temperature field is formed, which solves the problem that traditional air supply methods are prone to temperature stratification and airflow dead zones, resulting in irreversible dimensional changes such as warping and shrinkage caused by differences in the microenvironment of foamed materials in different locations within the storage space.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A uniform temperature control device based on swirl-flow air supply, which is softly connected to a constant temperature and humidity unit and electrically connected to a distributed sensor, characterized in that, It includes a main air supply duct, a branch air supply duct installed on the main air supply duct, a vortex distributor installed at the end of the branch air supply duct, and a return air outlet.

2. The uniform temperature control device based on swirl-flow air supply according to claim 1, characterized in that, One end of the main air supply duct is connected to the constant temperature and humidity unit via a flexible connection, while the other end is equipped with several ring-shaped or symmetrically distributed air supply branch ducts. Each air supply branch duct is connected to a vortex distributor at its tail end.

3. The uniform temperature control device based on swirl-flow air supply according to claim 1, characterized in that, The vortex distributor includes an air inlet, a vortex generating chamber, and an air outlet. One end of the air inlet is connected to the flange of the air supply branch pipe, and the other end is connected to the vortex generating chamber.

4. The uniform temperature control device based on swirl-flow air supply according to claim 3, characterized in that, The vortex generating chamber includes a main shaft and several spiral guide vanes mounted on the main shaft. The main shaft is connected to the inner wall of the vortex generating chamber and is positioned in the direction of air inlet. The angle between the spiral guide vanes and the main shaft is 25° to 45°.

5. A uniform temperature control device based on swirling airflow according to claim 3, characterized in that, The exhaust vent is a gradually narrowing and expanding type, including a narrowing section, a throat, and a expanding section. The ratio of the length of the narrowing section, the length of the throat, and the length of the expanding section is (1.5~2.5):(0.5~1):(2.5~3.5).

6. The uniform temperature control device based on swirl-flow air supply according to claim 1, characterized in that, The return air vent is connected to an exhaust duct, which is then connected to the constant temperature and humidity unit via a flexible connection.

7. A uniform temperature control device based on swirl-flow air supply according to claim 1, characterized in that, The air supply branch pipes are phenolic foam air ducts or rubber and plastic insulated air ducts, and the axis of the cyclone distributor is perpendicular to the horizontal plane.

Images