Thermal aging test box convenient to ventilate

Abstract

The utility model discloses a thermal aging test box convenient to ventilate, which relates to the technical field of thermal aging test equipment and comprises a main box body, a convenient ventilation unit and a discharging and filtering unit. According to the utility model, the preheating chamber is arranged, so that exchanged air can be preheated, and excessive temperature fluctuation in the test box caused by too low temperature of newly exchanged air is avoided; through the arrangement of an air guide plate and the design of an open type exhaust channel, newly fed air can pass through the periphery of a storage plate and the periphery of a heater in an inclined upward mode, original air in the main box body is pushed to rise upwards, and therefore ventilation can be conveniently and effectively conducted on the interior of the main box body; a mounting seat and a filter cartridge core are arranged, so that discharged gas can be filtered, and harmful gas generated in the thermal aging experiment process is prevented from being directly discharged into the environment; and a reliable jacking mechanism is arranged, so that the filter cartridge core can be conveniently replaced while a fixing effect on the filter cartridge core is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal aging test equipment, specifically a thermal aging test chamber with convenient ventilation. Background Technology

[0002] Thermal aging testing is a test method that simulates the long-term use of materials in high-temperature environments. It is widely used in electronics, rubber, plastics, coatings, aerospace, automotive and other fields. It typically involves applying small-scale thermal aging tests to test specimens under specific temperature, humidity, oxygen concentration and time conditions to accelerate the aging process of materials under the influence of oxygen and heat, in order to observe the changes in material properties over time. It plays a very important role in materials science research and engineering applications.

[0003] Existing test chambers used for thermal aging experiments lack a reliable air supply structure. The incoming air cannot flow smoothly inside the chamber, and the original gas cannot be directly and effectively discharged, making ventilation inconvenient. Directly introducing external air can easily cause sudden changes in the internal temperature of the chamber, and ventilation operations can also easily cause experimental errors or adverse effects. In addition, because thermal aging tests involve high-temperature heating of the product under test, the discharged gas can easily contain harmful particulate matter and other substances. Therefore, we propose a thermal aging test chamber with convenient ventilation. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing systems and provide a conveniently ventilated thermal aging test chamber. By incorporating a preheating chamber, the incoming air is preheated, preventing excessive temperature fluctuations within the chamber caused by excessively low-temperature incoming air. Furthermore, the use of air guides and an open exhaust channel design allows newly introduced air to flow obliquely upwards from the periphery of the shelf and heater, pushing the existing air inside the main chamber upwards, thus facilitating convenient and effective ventilation. The inclusion of a mounting base and filter cartridge filters the exhaust gas, preventing harmful gases generated during the thermal aging experiment from being directly released into the environment. Finally, a reliable clamping mechanism secures the filter cartridge while facilitating its replacement, effectively addressing the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient ventilation thermal aging test chamber, comprising a main chamber, a convenient ventilation unit, and an exhaust filtration unit;

[0006] Main body: The front end is connected to a movable door. The middle side of the interior of the main body is fixedly connected to a shelf. A heater is installed on both the upper and lower sides of the shelf. The shelf and the two heaters are fixedly connected to the rear wall of the main body. A preheating chamber is opened on the lower side of the main body.

[0007] Convenient ventilation unit: includes exhaust channel, air outlet channel, air supply pipe, support block, air guide plate and blower. The upper side of the main box is provided with a row of exhaust channels at equal intervals. The exhaust channels are opened longitudinally to the rear. The bottom of the main box is provided with an open air outlet channel. The bottom of the air outlet channel is fixedly connected to a vertical air supply pipe. A ring of support blocks is fixedly connected in a circular array at the upper end of the air supply pipe. A square air guide plate is fixedly connected to the upper end of the support blocks. A blower is installed at the port of the preheating chamber. The air inlet of the blower faces outward and a dust filter is installed at the port.

[0008] Emission filter unit: installed at the upper rear of the main housing.

[0009] The placement plate is used to place the object to be tested. The hot ends of the upper and lower heaters face each other and work together to heat the object to be tested. When ventilating the test chamber, the air blown by the blower is first preheated in the preheating chamber. The air heated by the heating wire is then transported upward along the air supply pipe to avoid excessive temperature fluctuations inside the test chamber caused by the newly introduced air being too cold. The support block is used to install the air guide plate. The rising air is transported to all sides after colliding with the air guide plate and is blown upward along the inner slope of the air outlet channel towards the inner wall of the main chamber. The upward airflow passes through the periphery of the placement plate and heaters, pushing the original air in the main chamber upward and expelling it outward along the exhaust channel. Through a reliable air duct design, it is easy to ventilate the inside of the test chamber.

[0010] Furthermore, the convenient ventilation unit also includes a temperature sensor, heating wires, and a solenoid valve. A temperature sensor is installed on the inner walls of both sides of the main chamber and the front inner wall of the preheating chamber. The lower end of the gas supply pipe leads into the preheating chamber, and a solenoid valve is installed at the lower port. A row of heating wires is horizontally installed at the rear of the gas supply pipe. The temperature sensors are used to detect the temperature inside the main chamber and the preheating chamber, allowing researchers to adjust the temperature inside the preheating chamber based on the ambient temperature inside the main chamber. The solenoid valve controls the opening and closing of the gas supply pipe and the flow rate of the delivered gas.

[0011] Furthermore, the convenient ventilation unit also includes a control panel one, a control panel two, a PLC controller, and a control switch group. Control panel one is installed at the front end of the movable door, with a digital display screen embedded in its center. The digital display screen and the temperature sensor on the inner wall of the main housing are electrically connected to the output of an external power supply through control panel one. Temperature adjustment knobs are located on the left and right sides of control panel one. Control panel two is embedded at the lower front of the main housing, with a digital display screen embedded in its center. A circular and triangular control switch group is installed on the right side of control panel two. Control panel one is used to adjust the temperature of the heater inside the main housing, and the digital display screen displays the temperatures in the two chambers. By setting up the PLC controller, the power of the heating wire inside the preheating chamber can be automatically controlled. The upper and lower triangular buttons in the control switch group can adjust the preset temperature, and the circular button can adjust the opening and closing of the solenoid valve.

[0012] Furthermore, the emission filtration unit includes a mounting base and a filter element. A square mounting base is fixedly connected to the upper rear side of the main housing. The upper end of the mounting base has longitudinal mounting grooves, the same number as the exhaust channels, and they are interconnected. The filter element is installed inside the mounting grooves, and the outer circumference of the filter element has fine air holes. The mounting base is used to install the filter element, which can filter the exhaust gas to reduce environmental pollution.

[0013] Furthermore, the emission filtration unit also includes a telescopic rod, a spring, a top block, and a lever. The front end of the filter cartridge rests against the rear port of the exhaust channel. A telescopic rod is fixedly connected to the rear side of the mounting groove inside the mounting base. A circular top block is fixedly connected to the front end of the telescopic rod, and a spring is sleeved on the outside of the telescopic rod. The top block rests against the rear side of the filter cartridge. The telescopic rod is used for mounting the spring and the top block. Under the action of the spring, the top block can press the filter cartridge tightly against the rear port of the exhaust channel. The lever allows the top block to be easily moved backward, thereby facilitating the replacement of the filter cartridge.

[0014] Furthermore, it also includes a glass window, a door lock, and a handle slot. A glass window is embedded in the center of the interior of the movable door, a door lock is installed at the junction of the movable door and the right side of the main body, and a handle slot is provided on the right side of the movable door. The glass window allows for easy observation of the interior of the test chamber, the door lock is used to secure the movable door, and the handle slot allows the user to easily open the movable door.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This conveniently ventilated thermal aging test chamber has the following advantages:

[0016] 1. By setting up a preheating chamber, the incoming air can be preheated to avoid excessive temperature fluctuations inside the test chamber caused by the newly introduced air being too cold; and through the setting of the air guide plate and the open exhaust channel design, the newly introduced air can pass obliquely upward from the periphery of the shelf and heater, pushing the original air in the main chamber upward, thereby facilitating convenient and effective ventilation inside the main chamber.

[0017] 2. By setting up a mounting base and filter cartridge, the exhaust gas can be filtered, preventing harmful gases generated during the thermal aging experiment from being directly released into the environment; and it has a reliable clamping mechanism, which can fix the filter cartridge while facilitating the replacement of the filter cartridge.

[0018] 3. This utility model, by setting up a preheating chamber, can preheat the incoming air, avoiding excessive temperature fluctuations inside the test chamber caused by excessively low-temperature incoming air; and through the setting of the air guide plate and the open exhaust channel design, the newly supplied air can pass obliquely upward from the periphery of the shelf and heater, pushing the original air in the main chamber upward, thereby facilitating convenient and effective ventilation inside the main chamber; and by setting up the mounting base and filter core, the exhaust gas can be filtered, preventing harmful gases generated during the thermal aging experiment from being directly released into the environment; and it has a reliable clamping mechanism, which can fix the filter core while facilitating the replacement of the filter core. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear upper structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 4 This is a schematic diagram of a partial internal structure of the present invention;

[0023] Figure 5 This is a schematic diagram of a partial rear structure of the present invention;

[0024] Figure 6 This utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0025] Figure 7 This utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0026] In the diagram: 1 Main housing, 2 Preheating chamber, 3 Convenient ventilation unit, 31 Exhaust channel, 32 Air outlet channel, 33 Air supply pipe, 34 Support block, 35 Air guide plate, 36 Blower, 37 Temperature sensor, 38 Control panel one, 39 Control panel two, 310 PLC controller, 311 Control switch group, 312 Heating wire, 313 Solenoid valve, 4 Emission filter unit, 41 Mounting base, 42 Filter cartridge, 43 Telescopic rod, 44 Spring, 45 Top block, 46 Toggle block, 5 Movable door, 6 Glass window, 7 Door lock, 8 Hand latch groove, 9 Shelf, 10 Heater. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 This embodiment provides a technical solution: a convenient ventilation thermal aging test chamber, including a main chamber 1, a convenient ventilation unit 3 and an exhaust filter unit 4;

[0029] Main box 1: The front end is rotatably connected to a movable door 5. The middle side of the interior of the main box 1 is fixedly connected to a shelf 9. A heater 10 is provided on both the upper and lower sides of the shelf 9. The shelf 9 and the two heaters 10 are fixedly connected to the rear wall of the main box 1. A preheating chamber 2 is opened on the lower side of the main box 1.

[0030] Convenient ventilation unit 3: includes exhaust channel 31, air outlet channel 32, air supply pipe 33, support block 34, air guide plate 35 and blower 36. A row of exhaust channels 31 is equidistantly opened on the upper side of the main housing 1. The exhaust channels 31 are opened longitudinally and backward. An open air outlet channel 32 is opened at the bottom of the main housing 1. A vertical air supply pipe 33 is fixedly connected to the bottom of the air outlet channel 32. A ring of support blocks 34 is fixedly connected in a circular array at the upper end of the air supply pipe 33. A square air guide plate 35 is fixedly connected to the upper end of the support block 34. A blower 36 is installed at the port of the preheating chamber 2. The air inlet of the blower 36 faces outward and a dust filter is installed at the port.

[0031] Emission filter unit 4: installed at the upper rear side of the main housing 1.

[0032] The placement plate 9 is used to place the object to be tested. The hot ends of the upper and lower heaters 10 face each other and heat the object to be tested together. When the test chamber is ventilated, the air blown by the blower 36 is first preheated in the preheating chamber 2. The air heated by the heating wire 312 is transported upward along the air supply pipe 33 to avoid the temperature of the newly introduced air being too low and causing excessive temperature fluctuations inside the test chamber. The support block 34 is used to install the air guide plate 35. The rising air is transported to all sides after colliding with the air guide plate 35 and blown upward along the inner slope of the air outlet channel 32 towards the inner wall of the main chamber 1. The upward air flows past the periphery of the placement plate 9 and the heaters 10, pushing the original air in the main chamber 1 to rise and be discharged outward along the exhaust channel 31. Through the reliable air duct design, it is easy to ventilate the inside of the test chamber.

[0033] The convenient ventilation unit 3 also includes a temperature sensor 37, a heating wire 312, and a solenoid valve 313. A temperature sensor 37 is installed on the inner walls of both sides of the main chamber 1 and the inner wall of the front side of the preheating chamber 2. The lower end of the gas supply pipe 33 leads into the preheating chamber 2, and a solenoid valve 313 is installed at the lower port. A row of heating wires 312 is horizontally installed at the rear of the gas supply pipe 33. The temperature sensor 37 is used to detect the temperature inside the main chamber 1 and the preheating chamber 2, allowing researchers to adjust the temperature inside the preheating chamber 2 according to the ambient temperature inside the main chamber 1. The solenoid valve 313 is used to control the opening and closing of the gas supply pipe 33 and the flow rate of the delivered gas.

[0034] The convenient ventilation unit 3 also includes a control panel 1 38, a control panel 2 39, a PLC controller 310, and a control switch group 311. Control panel 1 38 is installed at the front end of the movable door 5. A digital display screen is embedded in the center of control panel 1 38. The digital display screen and the temperature sensor 37 on the inner wall of the main housing 1 are electrically connected to the output terminal of an external power supply through control panel 1 38. Temperature adjustment knobs are provided on the left and right sides of control panel 1 38. Control panel 2 39 is embedded at the lower front of the main housing 1. A digital display screen is embedded in the center of control panel 2 39. A circular and triangular control switch group 311 is installed on the right side of control panel 2 39. Control panel 1 38 is used to adjust the temperature of the heater 10 inside the main housing 1, and the digital display screen is used to display the temperature in the two chambers. By setting the PLC controller 310, the power of the heating wire 312 inside the preheating chamber 2 can be automatically controlled. The upper and lower triangular buttons in the control switch group 311 can be used to adjust the preset temperature, and the circular button can be used to adjust the opening and closing of the solenoid valve 313.

[0035] The emission filtration unit 4 includes a mounting base 41 and a filter cartridge 42. A square mounting base 41 is fixedly connected to the upper rear side of the main housing 1. The upper end of the mounting base 41 has a longitudinal mounting groove, the same number as the exhaust channel 31, and they are interconnected. The filter cartridge 42 is installed inside the mounting groove, and the outer circumference of the filter cartridge 42 has fine air holes. The mounting base 41 is used to install the filter cartridge 42, which can filter the exhaust gas to reduce environmental pollution.

[0036] The exhaust filter unit 4 also includes a telescopic rod 43, a spring 44, a top block 45, and a lever 46. The front end of the filter cartridge 42 rests against the rear port of the exhaust channel 31. The telescopic rod 43 is fixedly connected to the rear side of the mounting groove inside the mounting base 41. A circular top block 45 is fixedly connected to the front end of the telescopic rod 43, and a spring 44 is sleeved on the outside of the telescopic rod 43. The top block 45 rests against the rear side of the filter cartridge 42. The telescopic rod 43 is used for mounting the spring 44 and the top block 45. Under the action of the spring 44, the top block 45 can press the filter cartridge 42 tightly against the rear port of the exhaust channel 31. The lever 46 can be used to easily push the top block 45 backward, thereby facilitating the replacement of the filter cartridge 42.

[0037] It also includes a glass viewing window 6, a door lock 7, and a handle slot 8. The glass viewing window 6 is embedded in the middle of the interior of the movable door 5. The door lock 7 is installed at the junction of the movable door 5 and the right side of the main body 1. The handle slot 8 is provided on the right side of the movable door 5. The glass viewing window 6 allows easy observation of the interior of the test chamber. The door lock 7 is used to lock the movable door 5, and the handle slot 8 allows the user to easily open the movable door 5.

[0038] The working principle of the convenient ventilation thermal aging test chamber provided by this utility model is as follows: This thermal aging test chamber has a reliable convenient ventilation unit 3. By setting a preheating chamber 2, the incoming air can be preheated to avoid excessive temperature fluctuations inside the test chamber caused by the newly introduced air being too cold. When ventilating the test chamber, the air blown by the blower 36 is first preheated inside the preheating chamber 2. The air heated by the heating wire 312 is then transported upward along the air supply pipe 33 to avoid excessive temperature fluctuations inside the test chamber caused by the newly introduced air being too cold. Furthermore, the air guide plate 35 and the open exhaust channel 31... The design allows newly supplied air to pass obliquely upwards from the periphery of the shelf 9 and heater 10, pushing the existing air in the main chamber 1 upwards, thus facilitating convenient and effective ventilation of the main chamber 1. The solenoid valve 313 is used to control the opening and closing of the gas supply pipe 33 and the flow rate of the supplied gas, and the digital display screen is used to display the temperature in the two chambers. By setting the PLC controller 310, the power of the heating wire 312 inside the preheating chamber 2 can be automatically adjusted. The preset temperature can be adjusted by controlling the upper and lower triangular buttons in the control switch group 311, and the opening and closing size of the solenoid valve 313 can be adjusted by the circular button. This thermal aging chamber also features a reliable exhaust filtration unit 4. With the mounting base 41 and filter cartridge 42, it filters the exhaust gas, preventing harmful gases generated during the thermal aging experiment from being directly released into the environment. It also has a reliable clamping mechanism that secures the filter cartridge 42 while facilitating its replacement. A telescopic rod 43 is used to mount the spring 44 and top block 45. Under the action of the spring 44, the top block 45 clamps the filter cartridge 42 to the rear end of the exhaust channel 31. A lever 46 allows the top block 45 to be easily moved backward, facilitating filter cartridge 42 replacement. Furthermore, the glass window 6 allows for easy observation of the chamber's interior, a door lock 7 secures the movable door 5, and a handle slot 8 allows the user to easily open the movable door 5.

[0039] It is worth noting that, in the above embodiments, the heater 10 and blower 36 are electrically connected to the output terminal of the external power supply through two switches on the left and right sides of the control panel 38, respectively. The heating wire 312 is electrically connected to the output terminal of the external power supply through the PLC controller 310. The solenoid valve 313 is electrically connected to the output terminal of the external power supply through the circular button in the control switch group 311. The heating wire 312 is electrically connected to the output terminal of the external power supply through the triangular button in the control switch group 311. Each control switch controls the operation of the corresponding electrical device using methods commonly used in the prior art.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A conveniently ventilated thermal aging test chamber, characterized in that: It includes the main housing (1), the convenient ventilation unit (3), and the exhaust filter unit (4); Main box (1): The front end is connected to a movable door (5). The middle side of the interior of the main box (1) is fixedly connected to a shelf (9). A heater (10) is provided on both the upper and lower sides of the shelf (9). The shelf (9) and the two heaters (10) are fixedly connected to the rear wall of the main box (1). A preheating chamber (2) is opened on the lower side of the main box (1). Convenient ventilation unit (3): includes exhaust channel (31), air outlet channel (32), air supply pipe (33), support block (34), air guide plate (35) and blower (36). An exhaust channel (31) is equidistantly opened on the upper side of the main box (1). The exhaust channel (31) is opened longitudinally and backward. An open air outlet channel (32) is opened at the bottom of the main box (1). A vertical air supply pipe (33) is fixedly connected to the bottom of the air outlet channel (32). A ring of support blocks (34) is fixedly connected in a circular array at the upper end of the air supply pipe (33). A square air guide plate (35) is fixedly connected to the upper end of the support block (34). A blower (36) is installed at the port of the preheating chamber (2). The air inlet of the blower (36) faces outward and a dust filter is installed at the port. Emission filter unit (4): installed on the upper rear side of the main housing (1).

2. The convenient ventilation thermal aging test chamber according to claim 1, characterized in that: The convenient ventilation unit (3) also includes a temperature sensor (37), a heating wire (312) and a solenoid valve (313). A temperature sensor (37) is installed on the inner walls of the left and right sides of the main housing (1) and the inner wall of the front side of the preheating chamber (2). The lower end of the gas pipe (33) is connected to the interior of the preheating chamber (2), and a solenoid valve (313) is installed at the lower port. A row of heating wires (312) is installed horizontally at the rear position inside the gas pipe (33).

3. The convenient ventilation thermal aging test chamber according to claim 2, characterized in that: The convenient ventilation unit (3) also includes a control panel one (38), a control panel two (39), a PLC controller (310), and a control switch group (311). The control panel one (38) is installed at the front end of the movable door (5). A digital display screen is embedded in the middle of the control panel one (38). The digital display screen and the temperature sensor (37) on the inner wall of the main body (1) are electrically connected to the output terminal of the external power supply through the control panel one (38). Temperature adjustment knobs are provided on the left and right sides of the control panel one (38). The control panel two (39) is embedded in the front side of the lower end of the main body (1). A digital display screen is embedded in the middle of the control panel two (39). A circular and triangular control switch group (311) is installed on the right side of the control panel two (39).

4. The convenient air-change thermal aging test chamber according to claim 1, characterized in that: The emission filtration unit (4) includes a mounting base (41) and a filter core (42). A square mounting base (41) is fixedly connected to the upper rear side of the main housing (1). The upper end of the mounting base (41) is provided with a longitudinal mounting groove. The number of mounting grooves is the same as that of the exhaust channel (31) and they are interconnected. The filter core (42) is installed inside the mounting groove. Fine air holes are provided on the outer circumference of the filter core (42).

5. A conveniently ventilated thermal aging test chamber according to claim 4, characterized in that: The emission filter unit (4) also includes a telescopic rod (43), a spring (44), a top block (45) and a lever (46). The front end of the filter core (42) rests against the rear port of the exhaust channel (31). The telescopic rod (43) is fixedly connected to the rear side of the mounting groove inside the mounting base (41). The front end of the telescopic rod (43) is fixedly connected to a circular top block (45), and a spring (44) is sleeved on the outside of the telescopic rod (43). The top block (45) rests against the rear side of the filter core (42).

6. The convenient ventilation thermal aging test chamber according to claim 1, characterized in that: It also includes a glass window (6), a door lock (7) and a hand latch groove (8). The glass window (6) is embedded in the middle of the interior of the movable door (5). The door lock (7) is installed at the junction of the movable door (5) and the right side of the main body (1). The hand latch groove (8) is opened on the right side of the movable door (5).

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