High and low temperature test chamber with damper structure

Abstract

The utility model relates to a high and low temperature test box with air door structure form, including the box, the inside middle part of box is provided with the working room, the inside top of box is equipped with high temperature groove, and the left and right sides of high temperature groove bottom are equipped with high temperature groove air outlet and high temperature groove return air outlet, and are communicated with the inside of working room through the air outlet and return air outlet, and the high temperature groove air outlet, high temperature groove return air outlet place is equipped with high temperature groove air outlet air door, high temperature groove return air air door respectively, the evaporimeter is installed in the working room air duct of working room back side, and the top and bottom of working room air duct front side are equipped with working room air duct air outlet and working room air duct return air outlet respectively, and are communicated with the inside of working room through the air outlet and return air outlet, and the working room air duct air outlet, working room air duct return air outlet place is equipped with working room air duct air outlet air door, working room air duct return air air door respectively, the utility model has solved that traditional high and low temperature test box cannot satisfy high temperature and above temperature test, has saved the cost and resource for user, has reduced the energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a high and low temperature test chamber with a damper structure. Background Technology

[0002] High and low temperature test chambers are important testing equipment with wide applications in aerospace, materials science, electrical and electronic fields, and many others. Because these chambers need to perform both low-temperature and high-temperature tests, conventional chambers typically only cover a temperature range of around -80 to 180 degrees Celsius, failing to simultaneously meet the requirements for a temperature range from -80 degrees Celsius to 250 degrees Celsius and above. This is because cooling requires an evaporator in the refrigeration system for heat exchange. Small amounts of refrigerant and lubricating oil remain on the walls of the evaporator and refrigeration pipes. Since the evaporator is installed inside the air duct, which is essentially a single unit with the chamber, at temperatures of 200 degrees Celsius and above, this can cause the lubricating oil to carbonize, affecting the refrigeration system's operation and potentially leading to malfunctions or even damage. Therefore, existing high and low temperature test chambers cannot meet the requirements for testing at temperatures of 200 degrees Celsius and above.

[0003] In view of the shortcomings of existing technologies, it would be of great significance to provide a high and low temperature test chamber that can meet the temperature test requirements from -80 degrees Celsius to 250 degrees Celsius and above. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a high and low temperature test chamber with an air damper structure. This solves the problem that traditional high and low temperature test chambers cannot meet the requirements for high temperature tests of 200 degrees Celsius and above, saving users costs and resources and reducing energy consumption.

[0005] To achieve the above objectives, a high and low temperature test chamber with a damper structure is designed, including a chamber body. A working chamber 8 is located in the center of the chamber body. An independent high-temperature tank 1 is added to the top of the chamber body, positioned above the working chamber 8. High-temperature tank outlet 2 and high-temperature tank return air inlet 3 are respectively located on the left and right sides of the bottom of the high-temperature tank 1, and are connected to the interior of the working chamber 8 through the high-temperature tank outlet 2 and high-temperature tank return air inlet 3. High-temperature tank outlet 2 and high-temperature tank return air inlet 3 are respectively equipped with high-temperature tank outlet dampers 5 and high-temperature tank return air dampers 5. The chamber 8 is equipped with a chamber air duct 13 at the rear. An evaporator 12 is installed inside the chamber air duct 13. The top and bottom of the front side of the chamber air duct 13 are respectively provided with a chamber air duct outlet 14 and a chamber air duct return air inlet 15. The chamber air duct is connected to the interior of the chamber 8 through the chamber air duct outlet 14 and the chamber air duct return air inlet 15. The chamber air duct outlet 6 and the chamber air duct return air 7 are respectively installed at the chamber air duct outlet 14 and the chamber air duct return air inlet 15.

[0006] Furthermore, the high-temperature tank outlet air damper 5, the high-temperature tank return air damper 4, the working chamber air duct outlet air damper 6, and the working chamber air duct return air damper 7 are all made of SUS304 stainless steel with an insulation layer, and each of the high-temperature tank outlet air damper 5, the high-temperature tank return air damper 4, the working chamber air duct outlet air damper 6, and the working chamber air duct return air damper 7 is equipped with a silicone sealing strip resistant to high and low temperatures.

[0007] Furthermore, the high-temperature tank outlet damper 5, the high-temperature tank return damper 4, the working chamber air duct outlet damper 6, and the working chamber air duct return damper 7 are all pneumatic dampers, and are respectively connected to the cylinder 11 through a linkage mechanism. The cylinder 11 is electrically connected to the controller 10, thereby enhancing the sealing performance.

[0008] Furthermore, a high-temperature tank fan 9 and a working chamber air duct fan 16 are respectively installed in the high-temperature tank 1 and the working chamber air duct 13. The high-temperature tank fan 9 and the working chamber air duct fan 16 are both used to provide circulating air volume. The high-temperature tank fan 9 and the working chamber air duct fan 16 are electrically connected to the controller 10.

[0009] Furthermore, a sample rack 17 is symmetrically fixedly installed on the inner wall of the working chamber 8. The sample rack 17 extends from top to bottom and is used to place samples when the test chamber is conducting tests.

[0010] Compared with existing technologies, this utility model provides a high and low temperature test chamber with a pneumatic damper structure. This test chamber adds an independent high-temperature chamber, and pneumatic dampers are installed at the return and outlet of the high-temperature chamber. The connection between the high-temperature chamber and the working chamber is insulated. Simultaneously, pneumatic dampers are installed at the return and outlet of the air duct, and the connection between the air duct and the working chamber is also insulated. This allows the chamber to meet the temperature testing requirements of high and low temperature test chambers from -80 degrees Celsius to 250 degrees Celsius and above. It solves the problem that traditional high and low temperature test chambers cannot meet the high-temperature testing of 200 degrees Celsius and above. In other words, only one device is needed to simultaneously meet both low-temperature and high-temperature testing ranges of 200 degrees Celsius and above, solving an industry pain point, saving users costs and resources, and reducing energy consumption. Furthermore, this utility model features high and low temperature resistant silicone sealing strips installed on the dampers, combined with a pneumatic clamping device (cylinder) to enhance sealing performance, making it worthy of widespread application. Attached Figure Description

[0011] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; In the diagram: 1. High-temperature bath; 2. High-temperature bath air outlet; 3. High-temperature bath return air outlet; 4. High-temperature bath return air damper; 5. High-temperature bath air outlet damper; 6. Working chamber air duct air outlet damper; 7. Working chamber air duct return air damper; 8. Working chamber; 9. High-temperature bath fan; 10. Controller; 11. Cylinder; 12. Evaporator; 13. Working chamber air duct; 14. Working chamber air duct air outlet; 15. Working chamber air duct return air outlet; 16. Working chamber air duct fan; 17. Sample rack. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings: As attached Figure 1 and attached Figure 2 As shown, this utility model provides a high and low temperature test chamber with a damper structure, including a chamber body. A working chamber 8 is set in the middle of the chamber body. An independent high temperature tank 1 is added to the top of the chamber body. The high temperature tank 1 is located above the working chamber 8. The high temperature tank outlet 2 and the high temperature tank return air inlet 3 are respectively set on the left and right sides of the bottom of the high temperature tank 1, and are connected to the interior of the working chamber 8 through the high temperature tank outlet 2 and the high temperature tank return air inlet 3. The high temperature tank outlet 2 and the high temperature tank return air inlet 3 are respectively equipped with a high temperature tank outlet damper 5 and a high temperature tank return air damper 4. A working chamber air duct 13 is set on the rear side of the working chamber 8. An evaporator 12 is installed in the working chamber air duct 13. The top and bottom of the front side of the working chamber air duct 13 are respectively equipped with a working chamber air duct outlet 14 and a working chamber air duct return air inlet 15. The working chamber air duct is connected to the interior of the working chamber 8 through the working chamber air duct outlet 14 and the working chamber air duct return air inlet 15. The working chamber air duct outlet 14 and the working chamber air duct return air inlet 15 are respectively equipped with a working chamber air duct outlet damper 6 and a working chamber air duct return air damper 7.

[0013] High-temperature bath 1 and working chamber air duct 13 are respectively equipped with high-temperature bath fan 9 and working chamber air duct fan 16. Both high-temperature bath fan 9 and working chamber air duct fan 16 are used to provide circulating air volume. High-temperature bath fan 9 and working chamber air duct fan 16 are electrically connected to controller 10. High-temperature bath outlet air damper 5, high-temperature bath return air damper 4, working chamber air duct outlet air damper 6 and working chamber air duct return air damper 7 are all made of SUS304 stainless steel with insulation layer. High-temperature bath outlet air damper 5, high-temperature bath return air damper 4, working chamber air duct outlet air damper 6, and working chamber air duct return air damper 7 are all made of SUS304 stainless steel with insulation layer. High and low temperature resistant silicone sealing strips are installed on the air damper 6 and the return air damper 7 of the working chamber air duct. The high temperature tank outlet air damper 5, the high temperature tank return air damper 4, the working chamber air duct outlet air damper 6, and the working chamber air duct return air damper 7 are all pneumatic dampers and are connected to the cylinder 11 through a linkage mechanism. The cylinder 11 is electrically connected to the controller 10, thereby enhancing the sealing performance. Sample racks 17 are symmetrically fixedly installed on the inner wall of the working chamber 8. The sample racks 17 extend from top to bottom and are used to place samples when the test chamber is used for testing.

[0014] The high and low temperature test chamber with a damper structure of this utility model mainly consists of the following parts: (1) Independent high temperature bath: provides heat for the test chamber to reach a high temperature of 200°C or above.

[0015] (2) High temperature tank air outlet: the air outlet for circulating air when the test chamber is operating at high temperature.

[0016] (3) High temperature chamber return air vent: the return air vent for circulating air when the test chamber is operating at high temperature.

[0017] (4) High temperature tank return air damper: The damper is made of SUS304 stainless steel with a heat insulation layer. A high temperature resistant silicone sealing strip is installed on the damper and it is connected to the cylinder through a linkage mechanism. The opening and closing are controlled by pneumatic means. When the test chamber needs to perform a temperature test higher than 200 degrees, the damper will open automatically. When the condition is not met, it will close automatically. This action is automatically controlled and judged by the program and is electrically interlocked with the air duct damper of the working chamber.

[0018] (5) High temperature tank exhaust damper: The damper is made of SUS304 stainless steel with an insulation layer. A high temperature resistant silicone sealing strip is installed on the damper and it is connected to the cylinder through a linkage mechanism. The opening and closing are controlled by pneumatic means. When the test chamber needs to perform a temperature test higher than 200 degrees, the damper will open automatically. When the condition is not met, it will close automatically. This action is automatically controlled and judged by the program and is electrically interlocked with the damper of the working chamber air duct.

[0019] (6) Air outlet damper of the working chamber: The damper is made of SUS304 stainless steel with an insulation layer. The damper is equipped with a silicone sealing strip that is resistant to high and low temperatures and is connected to the cylinder through a linkage mechanism. It is pneumatically controlled to open and close. When the test chamber needs to perform a temperature test below 200 degrees, the damper will open automatically. When the condition is not met, it will close automatically. This action is automatically controlled and judged by the program and is electrically interlocked with the damper of the high temperature tank.

[0020] (7) Return air damper of the working chamber: The damper is made of SUS304 stainless steel with an insulation layer. The damper is equipped with a silicone sealing strip that is resistant to high and low temperatures and is connected to a cylinder through a linkage mechanism. It is pneumatically controlled to open and close. When the test chamber needs to perform a temperature test below 200 degrees, the damper will open automatically. When the condition is not met, it will close automatically. This action is automatically controlled and judged by the program and is electrically interlocked with the damper of the high temperature tank. When the test chamber performs a temperature test above 200 degrees, the outlet air damper and return air damper of the working chamber are closed, which effectively isolates hot air from entering the working chamber air duct. This avoids the evaporator installed in the air duct from being exposed to high temperature, thus protecting the evaporator and the lubricating oil in the pipeline from being carbonized by high temperature. This enables the test chamber to meet the requirements of high and low temperature tests (temperature range test requirements of -80 degrees to 250 degrees and above).

[0021] (8) Working chamber: Used to place samples during the test chamber and to provide high and low temperature environment.

[0022] (9) High temperature chamber fan: provides circulating air volume for the test chamber when it is at high temperature.

[0023] (10) Controller: Provides control commands for the test chamber.

[0024] (11) Cylinder: provides energy for the damper switch.

[0025] (12) Evaporator: provides a cold source for equipment cooling.

[0026] In summary, the main objective of this utility model is to provide a high and low temperature test chamber with a pneumatic damper structure. This test chamber adds an independent high-temperature chamber, installs pneumatic dampers at the return air inlet and outlet of the high-temperature chamber, and provides thermal insulation for the connection between the high-temperature chamber and the working chamber. At the same time, pneumatic dampers are installed at the return air inlet and outlet of the air duct, and provide thermal insulation for the connection between the air duct and the working chamber. High and low temperature resistant silicone sealing strips are installed on the dampers, and the sealing performance is enhanced by a pneumatic clamping device (cylinder), thereby meeting the temperature test requirements of the high and low temperature test chamber from -80 degrees Celsius to 250 degrees Celsius and above.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0028] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.

Claims

1. A high and low temperature test chamber with a damper structure, comprising a cabinet, a working chamber (8) is arranged in the middle of the cabinet, characterized in that: An independent high-temperature tank (1) is added to the top of the chamber. The high-temperature tank (1) is located above the working chamber (8). The high-temperature tank (1) has a high-temperature tank air outlet (2) and a high-temperature tank air return port (3) on the left and right sides of its bottom, respectively. It is connected to the interior of the working chamber (8) through the high-temperature tank air outlet (2) and the high-temperature tank air return port (3). The high-temperature tank air outlet (2) and the high-temperature tank air return port (3) are respectively equipped with a high-temperature tank air outlet damper (5) and a high-temperature tank air return damper (4). The working chamber (8) has a working chamber air duct (1) on the rear side. 3) An evaporator (12) is installed in the working chamber air duct (13). The top and bottom of the front side of the working chamber air duct (13) are respectively provided with a working chamber air duct outlet (14) and a working chamber air duct return air inlet (15). The working chamber air duct is connected to the interior of the working chamber (8) through the working chamber air duct outlet (14) and the working chamber air duct return air inlet (15). The working chamber air duct outlet (14) and the working chamber air duct return air inlet (15) are respectively provided with a working chamber air duct outlet damper (6) and a working chamber air duct return air damper (7).

2. The high-low temperature test chamber with damper structure as claimed in claim 1, wherein: The high-temperature tank outlet air damper (5), the high-temperature tank return air damper (4), the working chamber air duct outlet air damper (6), and the working chamber air duct return air damper (7) are all made of SUS304 stainless steel with an insulation layer. The high-temperature tank outlet air damper (5), the high-temperature tank return air damper (4), the working chamber air duct outlet air damper (6), and the working chamber air duct return air damper (7) are all equipped with silicone sealing strips that are resistant to high and low temperatures.

3. The high-low temperature test chamber with damper structure as claimed in claim 2, wherein: The high-temperature tank outlet damper (5), the high-temperature tank return damper (4), the working chamber air duct outlet damper (6), and the working chamber air duct return damper (7) are all pneumatic dampers, and are connected to the cylinder (11) through a linkage mechanism. The cylinder (11) is electrically connected to the controller (10).

4. The high-low temperature test chamber with damper structure as claimed in claim 1, 2 or 3, characterized in that: The high-temperature tank (1) and the working chamber air duct (13) are respectively equipped with a high-temperature tank fan (9) and a working chamber air duct fan (16). The high-temperature tank fan (9) and the working chamber air duct fan (16) are both used to provide circulating air volume. The high-temperature tank fan (9) and the working chamber air duct fan (16) are electrically connected to the controller (10).

5. The high and low temperature test chamber with a damper structure as described in claim 1, characterized in that: Sample racks (17) are symmetrically fixed on the inner wall of the working chamber (8). The sample racks (17) extend from top to bottom and are used to place samples when the test chamber is used for testing.

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