Quick cooling air duct assembling mechanism of high and low temperature test room

Abstract

The utility model discloses a quick cooling air duct assembling mechanism of a high and low temperature laboratory, which belongs to the field of laboratory temperature control and comprises a plurality of air cooling pipelines connected with an air conditioning unit, and the air cooling pipelines are connected through flange splicing structures. The flange splicing structure comprises connecting protruding plates located on the two sides of the air cooling pipelines and a sealing gasket located between the connecting protruding plates of the two air cooling pipelines. Compared with the prior art, the sealing gasket has the advantages that the sealing gasket is divided into the sealing right-angle convex plate and the sealing right-angle concave plate, and the multiple layers of sealing convex blocks are arranged at the splicing position of the sealing right-angle convex plate and the sealing right-angle concave plate, so that sealing is guaranteed, the deformation resistance of the sealing gasket is improved, and the service life of the sealing gasket is prolonged. Therefore, the possibility of air leakage is reduced, and the sealing performance of the air cooling pipeline during connection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of laboratory temperature control, specifically to a rapid cooling air duct assembly mechanism for a high and low temperature test chamber. Background Technology

[0002] High and low temperature laboratories are widely used in fields such as electronics, automotive, aerospace, and materials mechanics to simulate extreme temperature environments and evaluate the performance stability of products or materials under high temperature, low temperature, and temperature changes. The temperature control components used in high and low temperature laboratories mainly refer to air conditioning temperature controllers that can quickly control the temperature. In order to conduct low temperature or high temperature gases into the laboratory with minimal loss, a rapid cooling air duct assembly mechanism for high and low temperature test chambers is usually required to complete the transfer of temperature-regulating gases.

[0003] The existing rapid cooling air ducts in high and low temperature test chambers are mainly composed of multiple air-cooled pipes spliced ​​together, and the splicing method is mostly flange structure splicing. When connecting, the flange structure has the advantages of simple structure and excellent sealing effect, and it is used for splicing of various structures. Among them, the transfer pipes and diversion pipes connecting the air-cooled pipes also mostly adopt the flange structure directly.

[0004] While this method allows for rapid pipe assembly, air-cooled pipes are typically located on the indoor ceiling and secured with brackets or ropes. This means that the connection points may shift due to gravity. Furthermore, flange connections usually consist of a single gasket that is directly attached to the connecting plates on both sides of the air-cooled pipe. This can lead to air and water leaks when the connection deforms, especially in hot conditions where thermal expansion and contraction make the gasket area more prone to leakage. Utility Model Content

[0005] The technical problem this invention aims to solve is that the flange splicing method used in the assembly mechanism of the rapid cooling air duct in existing high and low temperature test chambers is prone to air leakage.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a rapid cooling air duct assembly mechanism for a high and low temperature test chamber, including a plurality of air-cooled pipes connected to an air conditioning unit, each of the air-cooled pipes being connected by a flange splicing structure, the flange splicing structure including connecting convex plates located on both sides of the air-cooled pipes and a sealing gasket located between the connecting convex plates of two air-cooled pipes.

[0007] The sealing gasket is composed of a sealing right-angle convex plate and a sealing right-angle concave plate that interlock with each other. A sealing ring is provided above the connecting convex plate, passing through the vertical ends of the sealing right-angle convex plate and the sealing right-angle concave plate. Several layers of sealing protrusions passing through the sealing right-angle concave plate are provided on the mating surface of the sealing right-angle convex plate.

[0008] The air-cooled duct is equipped with several windproof pins that pass through the flat end of the sealing right-angle convex plate and the flat end of the sealing right-angle concave plate.

[0009] As an improvement, the outer wall end of the air-cooled duct is provided with a heat-insulating polyurethane insulation layer.

[0010] As an improvement, the polyurethane insulation layer is connected end to end with a waterproof adhesive.

[0011] As an improvement, the two mating connecting convex plates are connected by a bolt structure passing through the sealing right-angle convex plate and the sealing right-angle concave plate, with the bolt located at the outer end of the sealing ring.

[0012] As an improvement, the bottom surfaces of both the sealing right-angle convex plate and the sealing right-angle concave plate are connected to the connecting end of the connecting convex plate by high-temperature resistant waterproof adhesive.

[0013] As an improvement, the windproof pins are connected to the inner wall of the air-cooled pipe by welding.

[0014] The advantages of this invention compared with the prior art are as follows: This device divides the sealing gasket into a sealing right-angle convex plate and a sealing right-angle concave plate, and sets multiple layers of sealing protrusions at the splicing position of the sealing right-angle convex plate and the sealing right-angle concave plate. While ensuring sealing, it increases the deformation resistance of the sealing gasket, thereby reducing the possibility of air leakage, thus ensuring the sealing performance when connecting air-cooled pipes. Attached Figure Description

[0015] Figure 1 This is a general structural diagram of the rapid cooling air duct assembly mechanism of a high and low temperature test chamber according to this utility model.

[0016] Figure 2 This is a cross-sectional view of the overall structure of the rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to this utility model.

[0017] Figure 3 This is an exploded view of the overall structure of the rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to this utility model.

[0018] Figure 4 This is a structural diagram of the air-cooled pipe of a rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to this utility model.

[0019] As shown in the figure: 1. Air-cooled duct; 2. Flange splicing structure; 21. Connecting convex plate; 22. Sealing gasket; 221. Sealing right-angle convex plate; 222. Sealing right-angle concave plate; 2211. Sealing protrusion; 2212. Windproof pins; 223. Sealing ring; 3. Polyurethane insulation layer. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] As per the instruction manual Figure 1 , 2 As shown in Figures 3 and 4, existing high and low temperature test chambers typically install multiple air-cooled ducts 1 connected to air conditioning temperature control components at various locations and angles within the chamber to quickly complete temperature changes. These ducts change their output position and angle through various conversion ducts, blowing cold or hot air to various locations within the chamber. The splicing of the air-cooled ducts 1 and the splicing of the conversion ducts mostly adopt flange splicing structures 2. The flange splicing structure 2 includes connecting protrusions 21 located on both sides of the air-cooled ducts 1 and a sealing gasket 22 located between the connecting protrusions 21 of the two air-cooled ducts 1. The connecting protrusions 21 of the two air-cooled ducts 1 are connected by a bolt structure. High and low temperature test chambers are common experimental equipment, and their structural composition and operating principles will not be described in detail.

[0022] To ensure that the connection end of the air-cooled duct 1 does not sink due to gravity, affecting the sealing performance, the sealing gasket 22 is composed of interlocking right-angled convex plates 221 and right-angled concave plates 222. The mating surface of the right-angled convex plates 221 has several layers of sealing protrusions 2211 that pass through the right-angled concave plates 222. Most of the sealing protrusions 2211 are rough-surfaced to reduce the possibility of leakage, similar to the gas collecting bottle and frosted glass in a chemical experiment. This facilitates the sealing of the convex plates 21. The connection between the vertical end of the right-angle convex plate 221 and the vertical end of the sealing right-angle concave plate 222 is provided. A sealing ring 223 is provided above the connecting convex plate 21, passing through the vertical ends of the sealing right-angle convex plate 221 and the sealing right-angle concave plate 222. The sealing ring 223 can also ensure the sealing between the connecting convex plate 21 and the sealing right-angle convex plate 221 or the sealing right-angle concave plate 222. In order to ensure that the sealing ring 223 is not affected by the screw, the screw connecting the two connecting convex plates 21 is located at the outer end of the sealing ring 223.

[0023] To enhance the sealing performance between the connecting convex plate 21 and the sealing right-angle convex plate 221 or the sealing right-angle concave plate 222, the bottom surfaces of the sealing right-angle convex plate 221 and the sealing right-angle concave plate 222 are both connected to the connecting end of the connecting convex plate 21 by high-temperature resistant waterproof adhesive.

[0024] In order to reduce the impact of the wind inside the air-cooled duct 1 on the sealing right-angle convex plate 221 or the sealing right-angle concave plate 222, the air-cooled duct 1 is provided with a number of windproof pins 2212 that pass through the flat end of the sealing right-angle convex plate 221 and the flat end of the sealing right-angle concave plate 222, and the windproof pins 2212 are connected to the inner wall of the air-cooled duct 1 by welding.

[0025] In order to reduce the loss of cold air during the transmission process, the outer wall of the air-cooled duct 1 is provided with a heat-insulating polyurethane insulation layer 3, and the polyurethane insulation layer 3 is connected end to end by waterproof adhesive.

[0026] In practical implementation, according to the temperature requirements, the temperature controller of the high and low temperature test chamber is turned on. Then, the temperature controller will transfer the exchanged gas to the high and low temperature test chamber through the air-cooled pipe 1. During the transmission process, the gas is transferred to various locations in the high and low temperature test chamber by various diversion pipes and pressurization pipes, so as to ensure the stability of temperature changes. After the temperature exchange is completed, the indoor sensor will send a stop signal, thereby turning off the temperature controller.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A rapid cooling air duct assembly mechanism for a high and low temperature test chamber, comprising a plurality of air-cooled pipes (1) connected to an air conditioning unit, wherein each of the air-cooled pipes (1) is connected by a flange splicing structure (2), wherein the flange splicing structure (2) comprises connecting protrusions (21) located on both sides of the air-cooled pipes (1) and a sealing gasket (22) located between the connecting protrusions (21) of two air-cooled pipes (1), characterized in that: The sealing gasket (22) is composed of a sealing right-angle convex plate (221) and a sealing right-angle concave plate (222) that engage with each other. A sealing ring (223) is provided above the connecting convex plate (21) and passes through the vertical ends of the sealing right-angle convex plate (221) and the sealing right-angle concave plate (222). Several layers of sealing protrusions (2211) that pass through the sealing right-angle concave plate (222) are provided on the mating surface of the sealing right-angle convex plate (221). The air-cooled pipe (1) is provided with a number of windproof pins (2212) that pass through the flat end of the sealing right-angle convex plate (221) and the flat end of the sealing right-angle concave plate (222).

2. The rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to claim 1, characterized in that: The outer wall end of the air-cooled pipe (1) is provided with a heat-insulating polyurethane insulation layer (3).

3. The rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to claim 2, characterized in that: The polyurethane insulation layer (3) is connected end to end with waterproof adhesive.

4. The rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to claim 1, characterized in that: The two mating connecting convex plates (21) are connected by a bolt structure passing through the sealing right-angle convex plate (221) and the sealing right-angle concave plate (222), with the bolt located at the outer end of the sealing ring (223).

5. The rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to claim 1, characterized in that: The bottom surface of the sealing right-angle convex plate (221) and the bottom surface of the sealing right-angle concave plate (222) are both connected to the connecting end of the connecting convex plate (21) by high-temperature resistant waterproof adhesive.

6. The rapid cooling air duct assembly mechanism for a high and low temperature test chamber according to claim 1, characterized in that: The windproof pins (2212) are connected to the inner wall of the air-cooled pipe (1) by welding.

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