Environmental simulation test equipment

Abstract

The utility model belongs to the technical field of test equipment, and discloses environment simulation test equipment. The environment simulation test equipment comprises a test chamber, an explosion-proof assembly, an air suction device and a control device, a test sample is placed in the test chamber, the side wall of the test chamber is provided with an explosion-proof hole communicated with the inside and the outside of the test chamber, an explosion-proof piece covers the explosion-proof hole, and an air bag is communicated with the explosion-proof hole. High-pressure gas breaks through the anti-explosion piece to relieve pressure, the air bag can contain gas leaked from the anti-explosion hole, poisonous and harmful gas is prevented from being leaked, the external environment is prevented from being polluted, and the safety of operators is guaranteed. After the test sample explodes, the gas suction mechanism is started through the control device, so that poisonous and harmful gas can be sucked into the absorption box, and after absorption is completed, the test box is opened to check and clean the test sample, so that the next test is carried out, and the safety after the box is opened is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment technical field especially relates to a kind of environment simulation test equipment. BACKGROUND

[0002] Climate environment simulation test box is used to simulate climate environment condition, and test sample carries out relevant test under the simulated climate environment condition. In the test process, under the influence of inside environment and external input factor such as current, unexpected event such as leakage of substance in test sample or explosion of test sample occurs, leading to sharp rise of gas pressure in box, which affects the safety of test box and operator.

[0003] Generally, test box has explosion-proof port, when test sample explodes, gas in test box is discharged through explosion-proof port to avoid damage to box. However, for some test samples, explosion of test sample produces toxic and harmful gas, which can harm the user of equipment or other personnel around the test box.

[0004] Therefore, an environment simulation test equipment is needed to solve the above problems. SUMMARY

[0005] The utility model aims at providing an environment simulation test equipment, which can discharge pressure from test box when test sample explodes, prevent leakage of test sample substance and toxic and harmful gas, and ensure the safety of test equipment and operator.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An environment simulation test equipment is provided, comprising:

[0008] Test box, explosion-proof hole is arranged on the side wall of the test box, and test cavity is formed in the test box;

[0009] Explosion-proof assembly, the explosion-proof assembly includes explosion-proof sheet and air bag, the explosion-proof sheet covers the explosion-proof hole and is connected to the side wall of the test box, and the air bag is connected to the outside of the test box and communicates with the explosion-proof hole;

[0010] Air suction device, the air suction device communicates with the test cavity, for absorbing gas in the test cavity, and sending treated gas back to the test cavity;

[0011] Control device, the control device is signal connected with the air suction mechanism.

[0012] As an optional solution of environment simulation test equipment, the explosion-proof assembly further includes protective cover, and the protective cover covers the air bag outside and is connected to the test box.

[0013] As an optional solution of the environmental simulation test equipment, the explosion-proof plate comprises a protective net, an explosion-proof plate and a connecting flange, the connecting flange is connected to the side wall of the test box, and the explosion-proof plate is connected between the protective net and the connecting flange.

[0014] As an optional solution of the environmental simulation test equipment, the explosion-proof assembly is provided with two explosion-proof plates which are spaced apart and connected to the inner side wall and the outer side wall of the test box respectively.

[0015] As an optional solution of the environmental simulation test equipment, the explosion-proof assembly further comprises a connecting pipe which is connected between the two explosion-proof plates.

[0016] As an optional solution of the environmental simulation test equipment, the air suction device comprises a suction box, an air inlet pipe, an air return pipe, an air suction mechanism and two first control valves, the air suction mechanism is arranged in the suction box, the air inlet pipe and the air return pipe are both communicated between the suction box and the test cavity, the two first control valves are connected to the air inlet pipe and the air return pipe respectively, and the two first control valves and the air suction mechanism are both signal-connected with the control device.

[0017] As an optional solution of the environmental simulation test equipment, the test box is further provided with a gas permeable hole.

[0018] As an optional solution of the environmental simulation test equipment, the test box further comprises a second control valve which is connected at the gas permeable hole and is signal-connected with the control device.

[0019] As an optional solution of the environmental simulation test equipment, the test box comprises a box body, a box door and a locking mechanism, the box door can open and close the box body, the locking mechanism is connected between the box body and the box door, and the locking mechanism is signal-connected with the control device.

[0020] As an optional solution of the environmental simulation test equipment, the environmental simulation test equipment further comprises a temperature control device, the temperature control device comprises a sensor and a temperature control unit, the sensor is arranged in the test cavity, and the control device is signal-connected with the sensor and the temperature control unit; the sensor feeds back the environmental condition in the test cavity to the control device, and the control device controls the operation and shutdown of the temperature control device and the air suction device.

[0021] The beneficial effects of the utility model are as follows:

[0022] This invention provides an environmental simulation testing device, including a test chamber, explosion-proof components, an air intake device, and a control device. Test samples are placed inside the test chamber for testing. Explosion-proof holes are provided on the side walls of the test chamber to connect the inside and outside. An explosion-proof sheet covers the explosion-proof holes, remaining intact during stable testing to ensure the test chamber's airtightness. An airbag is connected to the explosion-proof holes. When the test sample explodes inside the test chamber, the high-pressure gas can rupture the explosion-proof sheet and release pressure through the explosion-proof holes, preventing damage from a sudden pressure surge inside the test chamber. The airbag can contain gas leaking from the explosion-proof holes, preventing leakage of test sample materials and toxic or harmful gases, avoiding environmental pollution, and ensuring operator safety. After the test sample explodes, the control device activates the air intake mechanism, allowing toxic or harmful gases to be drawn into an absorption chamber. After absorption is complete, the test chamber can be opened to inspect and clean the test sample, thus preparing for the next test and ensuring safety after opening the chamber. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the environmental simulation test equipment provided by this utility model;

[0024] Figure 2 yes Figure 1 Sectional view at point AA;

[0025] Figure 3 This is an exploded view of the explosion-proof sheet and connecting pipe of the environmental simulation test equipment provided by this utility model.

[0026] In the picture:

[0027] 100. Test chamber; 110. Explosion-proof vent; 120. Test cavity; 130. Second control valve; 140. Chamber body; 150. Chamber door; 160. Locking mechanism;

[0028] 200. Explosion-proof components; 210. Explosion-proof discs; 211. Protective nets; 212. Rupture discs; 213. Connecting flanges; 220. Airbags; 230. Protective covers; 240. Connecting pipes;

[0029] 300. Inhalation device; 310. Absorption box; 320. Inlet pipe; 330. Return pipe; 340. First control valve;

[0030] 400. Control device; 410. Control box;

[0031] 500. Temperature control device; 510. Unit enclosure. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] like Figures 1 to 3 As shown, the environmental simulation test equipment of this embodiment includes a test chamber 100, an explosion-proof component 200, a control device 400, and a temperature control device 500. An explosion-proof hole 110 is provided on the side wall of the test chamber 100, and a test chamber 120 is formed inside the test chamber 100. The explosion-proof component 200 includes an explosion-proof sheet 210 and an airbag 220. The explosion-proof sheet 210 covers the explosion-proof hole 110 and is connected to the side wall of the test chamber 100, while the airbag 220 is connected to the outside of the test chamber 100 and communicates with the explosion-proof hole 110.

[0037] The control device 400 includes a controller and a control box 410, with the controller housed within the control box 410. In this embodiment, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control each component to achieve its function.

[0038] The temperature control device 500 includes a sensor, a temperature control unit, and a unit housing 510. In this embodiment, the sensor is located inside the test chamber 120, the temperature control unit is located in the unit housing 510, the unit housing 510 is located below the test chamber 100, and the control box 410 is located on one side of the unit housing 510 and the test chamber 100. The controller is connected to the sensor and the temperature control unit via signals.

[0039] Specifically, the sensors include multiple sensors such as temperature sensors, humidity sensors, and gas concentration monitoring sensors, which are used to monitor the temperature, humidity, and concentration of toxic and harmful gases within the test chamber 120. The temperature control unit includes a compressor, heat exchanger, and fan, which can exchange heat within the test chamber 120. Existing technologies have mature applications of temperature control units, which will not be elaborated upon here. Multiple sensors can feed back monitoring results to the controller, which then controls the opening and closing of the temperature control unit based on the monitoring results, thereby maintaining a stable environment within the test chamber 120.

[0040] Based on the above design, when using the environmental simulation test equipment provided in this embodiment, the test sample is placed inside the test chamber 120 for testing. An explosion-proof hole 110 is provided on the side wall of the test chamber 100 to connect the inside and outside of the test chamber 100. An explosion-proof sheet 210 covers the explosion-proof hole 110. When the test is stable, the explosion-proof sheet 210 remains intact, ensuring the airtightness of the test chamber 120. An airbag 220 is connected to the explosion-proof hole 110. When the test sample explodes inside the test chamber, the high-pressure gas can break through the explosion-proof sheet 210 and release pressure from the test chamber 120 through the explosion-proof hole 110, preventing damage caused by a surge in gas pressure inside the test chamber 100. The airbag 220 can contain the gas leaking from the explosion-proof hole 110, preventing leakage of test sample materials and toxic or harmful gases, avoiding pollution of the external environment, and ensuring the safety of operators.

[0041] Since the temperature inside the test chamber 100 needs to be adjusted frequently, the air pressure inside the test chamber 120 also changes constantly. Therefore, the test chamber 100 is also equipped with a vent hole, which is located on the top wall of the test chamber 100. The test chamber 120 is connected to the outside through the vent hole, allowing the air inside the test chamber 120 to flow with the air outside the test chamber 100, thereby ensuring the balance of pressure inside and outside the test chamber.

[0042] In order to prevent the leakage of toxic and harmful gas from the air vent after the explosion of the test sample, the test box 100 further comprises a second control valve 130 connected to the air vent, and the second control valve 130 is signal connected with the control device 400. When the test is normally conducted, the second control valve 130 remains in an open state, and the air vent can supply air flow; when the test sample explodes, the gas concentration sensor detects that the concentration of toxic and harmful gas increases and reaches a certain threshold, and the controller closes the second control valve 130, so that the air vent is closed to prevent the leakage of toxic and harmful gas.

[0043] In the embodiment, the test box 100 comprises a box body 140, a box door 150 and a locking mechanism 160. The box body 140 and the box door 150 can be opened and closed, and when the box body 140 and the box door 150 are opened, the test sample can be taken out or placed in the test cavity 120. When the box body 140 and the box door 150 are closed, the test cavity 120 can be isolated to ensure the test environment in the test cavity 120 and isolate the toxic and harmful gas. The locking mechanism 160 is connected between the box body 140 and the box door 150, and the locking mechanism 160 is signal connected with the control device 400. Optionally, the locking mechanism 160 is set as an electromagnetic lock, and the electromagnetic lock is signal connected with the controller. When the concentration of toxic and harmful gas in the feedback result of the gas concentration sensor is higher than the pre-set threshold, the controller controls the electromagnetic lock to be in a continuous locking state to prevent the operator from opening the box door 150 by mistake and causing injury.

[0044] Further, the explosion-proof sheet 210 comprises a protective net 211, a bursting disc 212 and a connecting flange 213. The connecting flange 213 is connected to the side wall of the test box 100, and the explosion-proof sheet 210 is fixed to the test box 100 through the connecting flange 213. The bursting disc 212 is connected between the protective net 211 and the connecting flange 213. Exemplarily, the bursting disc 212 can be made of aluminum foil, stainless steel or plastic sheet, etc.

[0045] When the test is normally conducted, the bursting disc 212 is structurally complete and can close and cover the explosion-proof hole 110 to ensure the sealing of the test cavity 120. When the test sample explodes, the high-pressure gas can break through the bursting disc 212 and enter the explosion-proof hole 110. By setting the protective net 211, the test sample can be intercepted to prevent the test sample from entering the explosion-proof hole when the test sample explodes, avoid the impact damage of the test sample to the air bag, and facilitate the later cleaning.

[0046] Optionally, referring to Figure 3As shown, the explosion-proof assembly 200 is provided with two explosion-proof sheets 210, which are spaced apart and oppositely arranged, i.e., the connecting flanges of the two explosion-proof sheets 210 are connected to the inner side wall and the outer side wall of the test box 100, respectively. By providing two explosion-proof sheets 210, i.e., increasing the number of protective nets 211 in the explosion-proof assembly 200, the blocking effect on the test sample can be improved, and the overflow of explosion fragments can be prevented. It can be understood that in some embodiments, two protective nets 211 with different mesh diameters are used, which can further improve the interception effect on the test sample.

[0047] Optionally, the explosion-proof assembly 200 further comprises a connecting pipe 240 connected between the two explosion-proof sheets 210. When the test sample explodes, the bursting disc 212 of the two explosion-proof sheets 210 is broken, and the next test can be performed only after replacement. The connecting pipe 240 connects the two explosion-proof sheets 210 into a whole, i.e., the connecting pipe 240 is provided in the explosion-proof hole 110, which can improve the connection strength between the two explosion-proof sheets 210, and the connecting pipe 240 can also accommodate part of the test sample material overflowed after explosion. The connecting pipe 240 can be removed and cleaned when replacing the explosion-proof sheet 210, which can reduce the residual test sample material in the explosion-proof hole 110, ensure the cleaning effect, and improve the work efficiency.

[0048] It can be understood that the connecting pipe 240 is made of a material with low thermal conductivity, which can effectively block the heat exchange between the inside and outside of the test box 100 caused by the installation of the explosion-proof sheet 210, and ensure the stability of the temperature in the test box 100. In this embodiment, the connecting pipe 240 is made of epoxy resin, which has low thermal conductivity and good thermal stability. The heat distortion temperature of the epoxy resin can reach 180°C, and the allowable temperature range is 110°C-121°C. In addition, the epoxy resin also has good chemical corrosion resistance and good resistance to acids and alkalis, and has a long service life.

[0049] Further, the explosion-proof assembly 200 further comprises a protective cover 230, which is covered outside the air bag 220 and connected to the test box 100. The protective cover 230 can not only protect the air bag 220 from being damaged and causing failure, but also improve the appearance and improve the aesthetic of the explosion-proof assembly. In this embodiment, the protective cover 230 is arranged above the test box 100, which can make full use of the top space of the test box 100 and reduce the occupation of the ground space of the environmental simulation test equipment.

[0050] When the test sample explodes, the test chamber 120 is filled with toxic and harmful gas. In order to eliminate the toxic and harmful gas in the test box 100, the environmental simulation test equipment further comprises an air suction device 300, which comprises an absorption box 310 and an air suction mechanism. The air suction mechanism can be a gas pump, a fan or the like. The air suction mechanism is arranged in the absorption box 310. The inside of the absorption box 310 is in communication with the test chamber 120. The control device 400 is in signal connection with the air suction mechanism. When the gas concentration sensor detects that the concentration of the toxic and harmful gas reaches a threshold value, the controller can start the air suction mechanism to suck the toxic and harmful gas into the absorption box 310. The absorption box 310 can absorb and resolve the toxic and harmful gas. When the concentration of the toxic and harmful gas is lower than the threshold value, the air suction mechanism is turned off, and the door 150 can be opened for operation.

[0051] Specifically, the air suction device 300 further comprises an air inlet pipe 320, an air return pipe 330 and two first control valves 340. The air inlet pipe 320 and the air return pipe 330 are in communication between the absorption box 310 and the test chamber. The two first control valves 340 are connected to the air inlet pipe 320 and the air return pipe 330 respectively. The two first control valves 340 are in signal connection with the control device 400. When the test is normally conducted, the two first control valves 340 are in a closed state to ensure the sealing of the test chamber 120. When the test sample explodes, the controller can open the first control valve 340 to make the test chamber 120 in communication with the air inlet pipe 320 and the air return pipe 330. The toxic and harmful gas enters the absorption box 310 through the air inlet pipe 320, and the safe gas returns to the test chamber 120 through the air return pipe 330. Alternatively, in the embodiment, the first control valve 340 and the second control valve 130 are both electric ball valves. The electric ball valve technology is mature and has good reliability and performance stability.

[0052] It should be noted that the air suction device 300 further comprises a purification mechanism arranged in the absorption box 310. The purification mechanism is in signal connection with the controller. When the test sample explodes, the controller can open the purification mechanism to purify the toxic and harmful gas sucked into the absorption box 310. The purified safe gas returns to the test chamber 120 through the air return pipe 330. Specifically, the purification mechanism can be purified in many different ways. For example, CO and HF gas can be removed by chemical adsorption. The gas is adsorbed, absorbed and chemically reacted (neutralized) with the filter material to generate harmless solid which remains in the absorption box 310.

[0053] Further, the environment simulation test equipment further comprises a temperature control device 500, the temperature control device 500 comprises a sensor and a temperature control unit, the sensor is arranged in the test cavity, and the control device 400 is in signal connection with the sensor and the temperature control unit. The sensor feeds back the environment condition in the test cavity 120 to the control device 400, and the control device 400 controls the operation and closing of the temperature control device 500 and the air suction device 300, wherein: when the sensor detects that the concentration of toxic and harmful gas in the test cavity reaches a threshold value, the control device starts the air suction device to absorb and process the gas in the test cavity.

[0054] The environment simulation test equipment can feed back the temperature, humidity and harmful gas concentration in the test cavity 120 to the control device 400 through the sensor, the control device 400 controls the operation and closing of the temperature control unit, ensures the stability of the test environment in the test cavity 120, and when the sensor detects that the concentration of toxic and harmful gas in the test cavity 120 reaches a certain threshold value, the control device 400 starts the air suction device 300 to absorb and process the gas in the test cavity 120, realizes the cleaning of the test cavity 120, and ensures the safety of the test equipment and the staff.

[0055] When the environment simulation test equipment is used, the specific control method is as follows:

[0056] First, open the box door 150 of the test box 100, place the test sample in the test cavity 120, and close the box door 150;

[0057] Second, the control device 400 controls the two first control valves 340 to be in a closed state, the second control valve 130 to be in an open state, and the control device receives the feedback of the temperature sensor and the humidity sensor, controls the temperature control unit to be started, and ensures that the test environment in the test cavity 120 is stable. At this time, the test equipment is in normal operation, and the explosion-proof hole 110 is blocked by the explosion-proof sheet 210;

[0058] Third, when the test sample explodes, the high-pressure gas breaks through the explosion-proof sheet 210 and enters the air bag 220, at this time, the gas concentration sensor detects that the concentration of toxic and harmful gas reaches a preset threshold value, the controller controls the second control valve 130 to be closed, the locking mechanism 160 is in a continuous locking state, and the two first control valves 340, the air suction mechanism and the purification mechanism are started, so that the toxic and harmful gas in the test cavity 120 is absorbed and purified, and the purified gas flows back to the test cavity 120;

[0059] Fourth, when the gas concentration sensor detects that the concentration of the toxic and harmful gas in the test chamber 120 is lower than the preset threshold, the controller controls to close the two first control valves 340, the gas suction mechanism and the purification mechanism, open the second control valve 130 and the locking mechanism 160, so that the operator can open the box door 150, and the test sample and the test box 100 are processed subsequently, thereby avoiding that when the toxic and harmful gas is not processed, the operator opens the box door by mistake, causing harm to the operator or other personnel around the test box.

[0060] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An environmental simulation test device, characterized in that, include: A test chamber (100) is provided with explosion-proof holes (110) on its side wall, and a test cavity (120) is formed inside the test chamber (100); An explosion-proof assembly (200) includes an explosion-proof sheet (210) and an airbag (220). The explosion-proof sheet (210) covers the explosion-proof hole (110) and is connected to the side wall of the test chamber (100). The airbag (220) is connected to the outside of the test chamber (100) and communicates with the explosion-proof hole (110). A suction device (300) is connected to the test chamber (120) and is used to absorb the gas in the test chamber (120) and send the processed gas back to the test chamber (120). A control device (400) is signal-connected to the intake device (300).

2. The environmental simulation test equipment according to claim 1, characterized in that, The explosion-proof component (200) also includes a protective cover (230), which covers the airbag (220) and is connected to the test chamber (100).

3. The environmental simulation test equipment according to claim 1, characterized in that, The explosion-proof plate (210) includes a protective net (211), a rupture disc (212), and a connecting flange (213). The connecting flange (213) is connected to the side wall of the test chamber (100), and the rupture disc (212) is connected between the protective net (211) and the connecting flange (213).

4. The environmental simulation test equipment according to any one of claims 1-3, characterized in that, The explosion-proof component (200) is provided with two explosion-proof plates (210), which are spaced apart and respectively connected to the inner and outer walls of the test chamber (100).

5. The environmental simulation test equipment according to claim 4, characterized in that, The explosion-proof assembly (200) also includes a connecting pipe (240) that connects between the two explosion-proof plates (210).

6. The environmental simulation test equipment according to claim 1, characterized in that, The suction device (300) includes an absorption box (310), an air inlet pipe (320), an air return pipe (330), a suction mechanism, and two first control valves (340). The suction mechanism is located inside the absorption box (310). The air inlet pipe (320) and the air return pipe (330) are both connected between the absorption box (310) and the test chamber (120). The two first control valves (340) are respectively connected to the air inlet pipe (320) and the air return pipe (330). The two first control valves (340) and the suction mechanism are all signal connected to the control device (400).

7. The environmental simulation test equipment according to claim 1, characterized in that, The test chamber (100) is also equipped with ventilation holes.

8. The environmental simulation test equipment according to claim 7, characterized in that, The test chamber (100) also includes a second control valve (130), which is connected to the vent and is signal-connected to the control device (400).

9. The environmental simulation test equipment according to claim 1, characterized in that, The test chamber (100) includes a chamber body (140), a door (150), and a locking mechanism (160). The door (150) can open and close the chamber body (140). The locking mechanism (160) is connected between the chamber body (140) and the door (150). The locking mechanism (160) is signal-connected to the control device (400).

10. The environmental simulation test equipment according to claim 1, characterized in that, The environmental simulation test equipment also includes a temperature control device (500), which includes a sensor and a temperature control unit. The sensor is located inside the test chamber. The control device (400) is connected to the sensor and the temperature control unit. The sensor feeds back the environmental conditions inside the test chamber (120) to the control device (400). The control device (400) controls the operation and shutdown of the temperature control device (500) and the air intake device (300).

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