Nitrogen high temperature protection test box

Abstract

This utility model provides a nitrogen-type high-temperature protective test chamber, relating to the technical field of protective test chambers. It includes a chamber body comprising a steel plate. One side of the inner wall of the steel plate is fixedly installed on the outer wall of one side of an insulation blanket, and the other side of the outer wall of the insulation blanket is fixedly installed on the outer wall of one side of a wire mesh. This utility model utilizes multiple layers within the chamber body, such as steel plates and metal plates, to wrap the insulation blanket and wire mesh. The insulation blanket blocks high temperatures and reduces energy consumption, while the wire mesh and steel plates enhance impact resistance. Internal drainage channels and buffer channels, with their arc-shaped slope structure, divert high-temperature pressure to a pressure relief valve. When the pressure exceeds the limit, the rubber plate of the pressure relief valve deforms to release the pressure. An internal fan assists in buffering. The multiple layers and high strength provide time for pressure relief, ensuring the integrity of the chamber structure, effectively addressing heat leakage and abnormal pressure, improving equipment safety and stability, and preventing accidents.

Description

Technical Field

[0001] This utility model relates to the field of protective test chamber technology, and in particular to a nitrogen-type high-temperature protective test chamber. Background Technology

[0002] A nitrogen-type high-temperature protective test chamber is a test device that uses a nitrogen supply system to inject nitrogen into the chamber to create an inert atmosphere that isolates oxygen. Combined with a temperature control system, it can simulate high-temperature environments. The chamber has good heat insulation and sealing performance, can accurately control the temperature and maintain a stable nitrogen environment. It is mainly used in aerospace, electronics and electrical fields to perform performance testing or reliability verification of materials and components under high-temperature conditions, and to avoid interference from oxidation and other factors on the samples.

[0003] Existing nitrogen-type high-temperature protective test chambers have significant deficiencies in heat insulation and explosion-proof functions. The sealing structure of the test chamber door and body is poorly designed, which can easily cause nitrogen leakage and heat overflow. This not only affects the stability of the inert environment inside the chamber, but may also pose a risk of burns to surrounding personnel and equipment. Furthermore, existing gas-type high-temperature protective test chambers do not have an explosion-proof buffer structure. When the temperature inside the chamber rises abnormally due to the test or the nitrogen pressure exceeds the critical value, the chamber cannot automatically buffer the pressure and release the pressure instantly to prevent the chamber from exploding and endangering surrounding personnel. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen-type high-temperature protective test chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a housing, which comprises a steel plate. An outer wall with a heat insulation blanket is fixedly installed on one side of the inner wall of the steel plate. The outer wall with the heat insulation blanket is fixedly installed on one side of the outer wall with wire mesh. The outer wall with the wire mesh is fixedly installed on one side of the outer wall with a metal plate. Multiple drainage channels are provided on the other side of the metal plate. This outer wall with the metal plate is fixedly installed on one side of the inner wall of the steel plate. The steel plate and metal plate are internally wrapped with a heat insulation blanket and wire mesh. The steel plate, metal plate, and the internally wrapped heat insulation blanket and wire mesh are divided into multiple groups and fixed in a rectangular shape vertically and horizontally. A buffer groove is provided on the inner wall of the metal plate on the front side of the housing. An operating platform is fixedly installed at the center of the housing. A handle is fixedly installed on one side of the top outer wall of the housing. A movable shaft is movably installed on the other side of the top outer wall of the housing. The movable shaft is movably connected to the upper steel plate and one side steel plate of the housing. A pressure relief valve, an exhaust assembly, and an air intake assembly are fixedly connected to the rear side of the housing.

[0006] Preferably, the pressure relief valve includes a protective shell, one end of which is fixedly fitted with a filter screen, and the other end of which is movably fitted with a rubber plate. The other end of the protective shell is inserted and fixed at the center of the rear side of the housing. One end of four sets of connecting posts are equidistantly installed on one side of the inner side of the protective shell, and the other end of the four sets of connecting posts is fixedly fitted with a fan.

[0007] Preferably, the exhaust assembly includes a mounting plate, which is divided into two rectangular spaces. A motor is fixedly installed inside one of the rectangular spaces, and dustproof nets are fixedly installed at the front and rear ends of the rectangular space. Two sets of pipes are fixedly installed on one outer wall of the other rectangular space, and another set of fans is fixedly installed in front of the motor. An exhaust duct is fixedly installed at each end of the two sets of pipes, and a rubber plate is movably installed at the other end of the exhaust duct. The exhaust duct is inserted and fixed inside the rear side of the housing.

[0008] Preferably, the air filling assembly includes a gas cylinder, with one end of a gas supply pipe fixedly connected to the top of the gas cylinder, and the other end of the gas supply pipe fixedly connected to the rear interior of the housing, with a rubber plate movably connected to the other end of the gas supply pipe.

[0009] Preferably, a pressure relief valve is fixedly installed at the center of the rear outer wall of the box, an exhaust assembly is fixedly installed on one side of the rear side of the box, two sets of exhaust slots of the exhaust assembly are inserted and fixed inside the rear side of the box, and an air injection assembly is fixedly installed on the other side of the rear side of the box, with the air supply pipe of the air injection assembly inserted and fixed inside the rear side of the box.

[0010] Preferably, a spring is installed inside the movable shaft, which is movably installed on one side of the top steel plate of the housing, one side of the rubber plate of the pressure relief valve, one side of the rubber plate in front of the two sets of exhaust slots of the exhaust assembly, and one side of the rubber plate at one end of the air supply pipe of the air filling assembly that is inserted and fixed to the rear side of the housing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the nitrogen-type high-temperature protective test chamber is filled with multiple layers inside the chamber, such as steel plates and metal plates wrapped with heat insulation blankets and wire mesh. The heat insulation blankets block high temperatures and reduce energy consumption, while the wire mesh and plates enhance impact resistance. The internal drainage channels and buffer channels, with their arc-shaped slope structure, divert high-temperature pressure to the pressure relief valve. When the pressure exceeds the limit, the rubber plate of the pressure relief valve deforms to release the pressure, and the internal fan assists in buffering. The multiple layers of high strength provide time for pressure relief, ensuring the integrity of the chamber structure, effectively dealing with heat leakage and abnormal pressure, improving the safety and stability of the equipment, and preventing accidents.

[0013] 2. In this utility model, the exhaust component and the air filling component in the nitrogen-type high-temperature protective test chamber are used. The exhaust component drives the fan to reverse direction through the motor, and uses the deformation of the rubber plate in front of the pipe to conduct the air and directionally extract complex gases in the chamber. The air filling component injects nitrogen through the nitrogen cylinder and the gas supply pipe. The rubber plate of the gas supply pipe achieves one-way conduction. The two are linked together, exhausting impurities and filling nitrogen. The rubber plate forms a one-way barrier to maintain normal pressure and gas purity in the chamber, which can avoid sample contamination and oxidation, reduce equipment failure, and improve the accuracy of test data and equipment safety. Attached Figure Description

[0014] Figure 1 This utility model provides an overall three-dimensional view of a nitrogen-type high-temperature protective test chamber;

[0015] Figure 2 This utility model provides a three-dimensional view of the back of a nitrogen-type high-temperature protective test chamber;

[0016] Figure 3 This utility model provides an external perspective view of the chamber body of a nitrogen-type high-temperature protective test chamber;

[0017] Figure 4 This utility model provides a three-dimensional view of the interior of a nitrogen-type high-temperature protective test chamber;

[0018] Figure 5 This utility model provides a three-dimensional view of the chamber interlayer in a nitrogen-type high-temperature protective test chamber;

[0019] Figure 6 A three-dimensional view of a pressure relief valve in a nitrogen-type high-temperature protective test chamber is provided for this utility model;

[0020] Figure 7 A three-dimensional view of the exhaust component in a nitrogen-type high-temperature protective test chamber is provided for this utility model;

[0021] Figure 8 A three-dimensional view of the air-filling component in a nitrogen-type high-temperature protective test chamber is provided for this utility model.

[0022] Legend: 1. Box body; 101. Steel plate; 102. Insulation blanket; 103. Wire mesh; 104. Metal plate; 105. Drainage channel; 106. Buffer channel; 107. Operating table; 108. Handle; 109. Movable shaft; 2. Pressure relief valve; 201. Protective shell; 202. Filter screen; 203. Rubber plate; 204. Connecting column; 205. Fan; 3. Exhaust assembly; 301. Mounting plate; 302. Motor; 303. Dustproof net; 304. Pipe; 305. Exhaust duct; 4. Air filling assembly; 401. Gas cylinder; 402. Gas supply pipe. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: Refer to Figure 3 - Figure 5 As shown: This embodiment includes a nitrogen-type high-temperature protective test chamber, comprising a chamber body 1, the chamber body 1 including a steel plate 101, a heat insulation blanket 102 fixedly installed on one side of the inner wall of the steel plate 101, a heat insulation blanket 102 fixedly installed on the other side of the outer wall of the heat insulation blanket 102 fixedly installed on the other side of the outer wall of the wire mesh 103, a metal plate 104 fixedly installed on the other side of the outer wall of the wire mesh 103, multiple sets of drainage grooves 105 are formed on the other side of the outer wall of the metal plate 104, the metal plate 104 is fixedly installed on one side of the inner wall of the steel plate 101, and the heat insulation blanket 102 and the wire mesh 103 are wrapped and fixed inside the steel plate 101 and the metal plate 104. The steel plate 101 and metal plate 104, as well as the internally wrapped and fixed heat insulation blanket 102 and wire mesh 103, are divided into multiple groups and fixed in a rectangular shape on the top, bottom, left and right. The inner wall of the metal plate 104 on the front side of the box 1 is provided with a buffer groove 106. An operating table 107 is fixedly installed at the center of the inside of the box 1. A handle 108 is fixedly installed on one side of the top outer wall of the box 1. A movable shaft 109 is movably installed on the other side of the top outer wall of the box 1. The movable shaft 109 is movably connected to the upper steel plate 101 and the side steel plate 101 of the box 1. A pressure relief valve 2, an exhaust assembly 3 and an air injection assembly 4 are fixedly connected to the rear side of the box 1.

[0026] The overall effect of this embodiment is as follows: Adding a multi-layered assembly consisting of a heat insulation blanket 102, wire mesh 103, steel plate 101, and metal plate 104, along with a pressure relief valve 2, a drainage channel 105, and a buffer channel 106, to the chamber 1 of the nitrogen-type high-temperature protective test chamber significantly improves the safety and reliability of the equipment. The heat insulation blanket 102 effectively blocks high-temperature conduction, reduces the surface temperature of the chamber 1, and decreases energy consumption. The wire mesh 103, steel plate 101, and metal plate 104, when wrapped and fixed, form a high-strength three-dimensional protective structure, enhancing the impact resistance of the chamber 1 and preventing shell rupture during an explosion. The drainage channel 105 and buffer channel 106, located inside the metal plate 104 of the chamber 1, effectively buffer and divert internal high-temperature pressure through their arc-shaped and sloping structure, allowing the internal high-temperature pressure to flow through the buffer channel 106 and drainage channel 105 to the pressure relief valve 2, thus improving the internal high-temperature and high-pressure environment. Providing a stable physical barrier, the pressure relief valve 2 is linked with the multi-layered assembly. When the pressure inside the housing 1 exceeds the threshold, the internal pressure squeezes the rubber plate 203 of the pressure relief valve 2, causing it to deform and releasing excess pressure in time. This prevents the housing 1 from bursting due to pressure accumulation. Furthermore, the fan 205 inside the pressure relief valve 2 can effectively buffer and divert the released pressure. The high strength of the multi-layered structure provides buffer time for the pressure relief process, ensuring that the housing 1 remains structurally intact when the pressure relief valve 2 is working effectively. The combination of these two elements enhances the explosion-proof performance through physical reinforcement and mitigates the risk of overpressure through an active pressure relief mechanism, forming a three-dimensional protection system of heat insulation, reinforcement, and pressure relief. This system can effectively cope with dangerous situations such as heat leakage and abnormal pressure that may occur during high-temperature testing, ensuring the safety and stability of the equipment when used in high-requirement fields such as aerospace and electronics, and preventing accidents caused by insufficient heat insulation or explosion-proof failure.

[0027] Example 2: According to Figure 6 - Figure 8As shown: The pressure relief valve 2 includes a protective shell 201. A filter screen 202 is fixedly installed at one end of the protective shell 201, and a rubber plate 203 is movably installed at the other end of the protective shell 201. The other end of the protective shell 201 is inserted and fixed at the center of the rear side of the housing 1. One end of four sets of connecting columns 204 are equidistantly installed on one side of the inner side of the protective shell 201. A fan 205 is fixedly installed at the other end of the four sets of connecting columns 204. The exhaust assembly 3 includes a mounting plate 301, which is divided into two rectangular spaces. A motor 302 is fixedly installed inside one rectangular space. Dustproof nets 303 are fixedly installed at the front and rear ends of this rectangular space. Two sets of pipes 304 are fixedly installed on the outer wall of one side of the other rectangular space. Another set of fans 205 is fixedly installed on the front side of the motor 302. A set of exhaust ducts 305 is fixedly installed at both ends of the two sets of pipes 304. The other end of the exhaust duct 305 is movably installed with a rubber plate 203. The exhaust duct 305 is inserted and fixed at the rear side of the housing 1. The air filling assembly 4 includes a gas cylinder 401. One end of a gas supply pipe 402 is fixedly connected to the top of the gas cylinder 401. The other end of the gas supply pipe 402 is fixedly connected to the interior of the rear side of the housing 1. A rubber plate 203 is movably connected to the other end of the gas supply pipe 402. A pressure relief valve 2 is fixedly installed at the center of the rear outer wall of the housing 1. An exhaust assembly 3 is fixedly installed on one side of the rear side of the housing 1. Two sets of exhaust slots 305 of the exhaust assembly 3 are inserted and fixedly fixed inside the rear side of the housing 1. The rear side of the housing 1 also has... An air-injection assembly 4 is fixedly installed on one side. The air supply pipe 402 of the air-injection assembly 4 is inserted and fixed inside the rear side of the box body 1. A spring is installed inside the movable shaft 109. The movable shaft 109 is movably installed on one side of the top steel plate 101 of the box body 1, one side of the rubber plate 203 of the pressure relief valve 2, one side of the rubber plate 203 in front of the two sets of exhaust slots 305 of the exhaust assembly 3, and one side of the rubber plate 203 at one end of the air supply pipe 402 inserted and fixed on the rear side of the box body 1.

[0028] The overall effect of Embodiment 2 is as follows: By adding an exhaust assembly 3 and an air filling assembly 4 to the nitrogen-type high-temperature protective test chamber, an efficient gas circulation and pressure balance system can be constructed, significantly improving the purity and stability of the test environment. The exhaust assembly 3 drives the fan 205 to reverse through the motor 302, and uses two sets of pipes 304 to directionally extract complex gases inside the chamber. With the dynamic deformation sealing design of the rubber plate 203 on the front side of the pipe 304, the rubber plate 203 opens to form a passage during exhaust, efficiently expelling impurity gases. When not exhausting, it returns to its original state to isolate external air and avoid contaminating the inert environment inside the chamber. The air filling assembly 4 continuously injects nitrogen into the chamber through the gas cylinder 401 and the gas supply pipe 402. Similarly, the rubber plate 203 on the front side of the gas supply pipe 402 achieves unidirectional conduction during air filling and sealing when air filling stops, ensuring a stable supply of nitrogen to maintain normal pressure inside the chamber, while displacing residual nitrogen. The complex gases retained within the chamber are prevented from interfering with the performance of the test materials or samples. The exhaust component 3 actively removes harmful gases or excessive moisture and oxygen generated in the reaction within the chamber 1, reducing the impact of complex gases on the test. The air filling component 4 simultaneously replenishes high-purity nitrogen to maintain the pressure inside the chamber within a safe threshold, avoiding damage to the sealing structure of the chamber 1 due to negative pressure caused by exhaust. The sealing design of the rubber plate 203 in the dual components forms a one-way gas flow barrier, allowing only the gas inside the chamber 1 to be discharged during exhaust and only nitrogen to be injected during air filling, preventing backflow of external air or leakage of gas inside the chamber, and ensuring that the chamber is always in a stable environment protected by high-purity nitrogen. This linkage not only protects the samples from oxidation, contamination and other risks during high-temperature tests, but also avoids equipment failure caused by abnormal gas composition or pressure fluctuations through pressure balance, significantly improving the accuracy of test data and the safety of equipment operation.

[0029] Working Principle: In the nitrogen-type high-temperature protective test chamber, the multi-layer protective components, pressure relief system, and gas circulation components form a multi-dimensional linkage working system through structural reinforcement, pressure diversion, and dynamic gas control. The multi-layer structure of the chamber 1, with steel plates 101 and metal plates 104 wrapping the heat insulation blanket 102 and wire mesh 103, firstly, the heat insulation blanket 102 blocks high-temperature conduction, reduces energy consumption, and prevents overheating of the surface of the chamber 1. At the same time, the wire mesh 103 and metal plates 104 form a high-strength three-dimensional frame, improving impact resistance. This, combined with the arc-shaped slope design of the internal drainage channel 105 and buffer channel 106, further enhances the chamber's performance. The system is designed to guide the pressure generated by the high temperature and high pressure environment inside the chamber 1 to the pressure relief valve 2 in an orderly manner. When the pressure exceeds the threshold, the rubber plate 203 of the pressure relief valve 2 is deformed by compression, and the internal fan 205 assists in buffering and guiding the flow, releasing excess pressure in a timely manner. The high strength characteristics of the multi-layer structure provide a buffer time for the pressure relief process, ensuring that the chamber 1 maintains its structural integrity during pressure relief, achieving a physical protection linkage of heat insulation, pressure bearing, and pressure relief. The exhaust assembly 3 and the air injection assembly 4 maintain the purity and pressure balance of the gas inside the chamber through dynamic air control. The motor 302 of the exhaust assembly 3 drives the fan 205 to reverse, utilizing the pipeline The rubber plate 203 on the front side of 304 becomes conductive, directionally extracting complex gases from the chamber and removing impurities. The air filling component 4 continuously injects nitrogen through the gas cylinder 401 and the gas supply pipe 402. Similarly, the gas supply pipe 402 and the rubber plate 203 achieve unidirectional flow, replenishing high-purity nitrogen to replace residual impurities and maintain normal pressure. The linkage between the two and the pressure relief system is reflected in the fact that the exhaust component 3 actively reduces the concentration of harmful gases in the chamber, reducing the risk of reaction caused by abnormal gas composition, while the air filling component 4 simultaneously replenishes nitrogen to avoid negative pressure caused by exhaust. Together with the pressure relief valve 2, they form a pressure closed loop of extraction-replenishment-release. The ring, with its multi-layered sealing and strength protection, provides a stable physical space for the gas circulation components, preventing backflow of external air or leakage from chamber 1 during the pumping process. The drainage channel 105 and buffer channel 106 also provide pressure relief and buffer pressure fluctuations during gas circulation, ensuring that chamber 1 is always in a high-temperature environment protected by high-purity nitrogen. Through the synergistic effect of structural reinforcement, active pressure control, and dynamic gas circulation, the entire system not only mitigates the risk of overpressure explosion but also ensures the purity and stability of the test environment, significantly improving the safety and reliability of the equipment in high-risk tests.

[0030] By following the instructions above, you can complete the use of the nitrogen-type high-temperature protection test chamber.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A nitrogen high temperature protection test chamber, characterized in that: Includes the housing (1); The housing (1) includes a steel plate (101). A heat insulation blanket (102) is fixedly installed on one side of the inner wall of the steel plate (101). The other side of the heat insulation blanket (102) is fixedly installed on one side of the outer wall of a wire mesh (103). A metal plate (104) is fixedly installed on the other side of the outer wall of the wire mesh (103). Multiple drainage grooves (105) are formed on the other side of the outer wall of the metal plate (104). This side of the outer wall of the metal plate (104) is fixedly installed on one side of the inner wall of the steel plate (101). The heat insulation blanket (102) and wire mesh (103) are wrapped and fixed inside the steel plate (101) and the metal plate (104). The steel plate (101) and the metal plate (104) are... The internal insulation blanket (102) and wire mesh (103) are divided into multiple groups and fixed in a rectangular shape on the top, bottom, left and right. The inner wall of the metal plate (104) on the front side of the box (1) is provided with a buffer groove (106). An operating table (107) is fixedly installed at the center of the inside of the box (1). A handle (108) is fixedly installed on one side of the top outer wall of the box (1). A movable shaft (109) is movably installed on the other side of the top outer wall of the box (1). The movable shaft (109) is movably connected to the upper steel plate (101) and the side steel plate (101) of the box (1). A pressure relief valve (2), an exhaust assembly (3) and an air filling assembly (4) are fixedly connected to the rear side of the box (1).

2. The nitrogen high temperature shielded test chamber of claim 1, wherein: The pressure relief valve (2) includes a protective shell (201). A filter screen (202) is fixedly installed at one end of the protective shell (201), and a rubber plate (203) is movably installed at the other end of the protective shell (201). The other end of the protective shell (201) is inserted and fixed at the center of the rear side of the box (1). One end of four sets of connecting columns (204) are equidistantly installed on one side of the inside of the protective shell (201), and a fan (205) is fixedly installed at the other end of the four sets of connecting columns (204) facing inward.

3. The nitrogen-type high-temperature protective test chamber according to claim 1, characterized in that: The exhaust assembly (3) includes a mounting plate (301), which is divided into two rectangular spaces. A motor (302) is fixedly installed inside one of the rectangular spaces. Dustproof nets (303) are fixedly installed at the front and rear ends of the rectangular space. Two sets of pipes (304) are fixedly installed on one side of the outer wall of the other rectangular space. Another set of fans (205) is fixedly installed on the front side of the motor (302). A set of exhaust ducts (305) is fixedly installed at both ends of the two sets of pipes (304). A rubber plate (203) is movably installed at the other end of the exhaust duct (305). The exhaust duct (305) is inserted and fixed inside the rear side of the housing (1).

4. The nitrogen-type high-temperature protective test chamber according to claim 1, characterized in that: The air filling assembly (4) includes a gas cylinder (401), one end of which is fixedly connected to the top of the gas cylinder (401) and the other end of which is fixedly connected to the rear interior of the housing (1). The other end of the gas cylinder (402) is movably connected to a rubber plate (203).

5. The nitrogen-type high-temperature protective test chamber according to claim 1, characterized in that: A pressure relief valve (2) is fixedly installed at the center of the rear outer wall of the box (1). A ventilation assembly (3) is fixedly installed on one side of the rear of the box (1). Two sets of ventilation slots (305) of the ventilation assembly (3) are inserted and fixed inside the rear of the box (1). An air injection assembly (4) is fixedly installed on the other side of the rear of the box (1). The air supply pipe (402) of the air injection assembly (4) is inserted and fixed inside the rear of the box (1).

6. The nitrogen high temperature shielded test chamber of claim 1, wherein: The movable shaft (109) is equipped with a spring inside. The movable shaft (109) is movably installed on one side of the top steel plate (101) of the box (1), one side of the rubber plate (203) of the pressure relief valve (2), one side of the rubber plate (203) in front of the two sets of exhaust slots (305) of the exhaust assembly (3), and one side of the rubber plate (203) at one end of the air supply pipe (402) of the air filling assembly (4) which is inserted and fixed to the rear side of the box (1).

Images