Constant-temperature and constant-humidity explosion-proof test box

Abstract

The utility model discloses a constant-temperature and constant-humidity explosion-proof test box which comprises a box body which comprises an outer box and an inner box installed in the outer box. The power distribution cabinet is arranged outside the box body and is used for electrically controlling the test box; the fire extinguishing system comprises a control box, a smoke detector, a gas concentration detector, a carbon dioxide fire extinguishing device and an exhaust device, the control box is arranged outside the box body and electrically connected with the other components, the smoke detector in the inner box is used for detecting smoke generation, and the gas concentration detector is used for detecting the concentration of specific gas; the carbon dioxide fire extinguishing device and the smoke exhausting device are respectively communicated with the inner box; in the inner box, when the concentration of smoke and / or specific gas exceeds a threshold value, the control box opens the carbon dioxide fire extinguishing device to extinguish fire in the inner box; and when smoke exists, the control box opens the smoke exhaust device to exhaust air in the inner box out of the box body. Automatic fire extinguishing and smoke discharging are achieved, the possibility of fire damage in the test is reduced, and the equipment safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, in particular to a constant temperature and humidity explosion-proof test box. Background Art

[0002] As the quality requirements of industrial products increase, various environmental testing tests are usually required before the products enter the market. Constant temperature and humidity explosion-proof test chamber is an instrument that can perform explosion-proof tests under constant temperature and humidity conditions. This equipment is widely used in many fields, such as petroleum, chemical, medicine, military, etc. It can not only test the explosion-proof performance of various products, but also simulate various extreme environments to ensure the safety and stability of the products.

[0003] As an important power carrier in new energy sources, lithium batteries are also tested for performance in constant temperature and humidity explosion-proof test chambers. Batteries are prone to combustion or explosion under extreme test conditions, and battery explosions are often accompanied by open flames. Most explosion-proof environment test chambers cannot extinguish open flames in time, causing the open flames to continue burning, resulting in greater losses.

[0004] The above problems need to be solved urgently. Utility Model Content

[0005] In order to overcome the disadvantage of the prior art that the battery test explosion easily generates open flame combustion, the utility model provides a constant temperature and humidity explosion-proof test box.

[0006] The technical solution of the utility model is as follows:

[0007] A constant temperature and humidity explosion-proof test chamber, comprising:

[0008] A box body, the box body comprising an outer box and an inner box installed inside the outer box, and the object to be tested is placed in the inner box;

[0009] A power distribution cabinet, which is arranged outside the box and is used for electrical control of the constant temperature and humidity explosion-proof test box;

[0010] A fire fighting system, the fire fighting system comprising a control box, a smoke detector, a gas concentration detector, a carbon dioxide fire extinguishing device and an exhaust device, the control box being arranged outside the box and being electrically connected to the smoke detector, the gas concentration detector, the carbon dioxide fire extinguishing device and the exhaust device respectively, the smoke detector being used to detect whether smoke is generated in the inner box, and the gas concentration detector being used to detect the concentration of a specific gas in the inner box;

[0011] The carbon dioxide fire extinguishing device and the smoke exhaust device are respectively connected to the inner box; in the inner box, when there is smoke, and / or the concentration of a specific gas exceeds a threshold value, the control box turns on the carbon dioxide fire extinguishing device to spray carbon dioxide gas into the inner box to extinguish the fire; when there is smoke, the control box turns on the smoke exhaust device to draw the air in the inner box out of the box.

[0012] Furthermore, in one embodiment, the front side of the box body is provided with an opening and closing box door, and the rear side of the outer box is provided with an explosion-proof door.

[0013] Furthermore, in one embodiment, a mechanical room is formed between the inner box and the outer box, and a refrigeration system and a heating system are provided in the mechanical room to adjust the temperature and humidity in the inner box.

[0014] Furthermore, in one embodiment, the smoke exhaust device includes a smoke exhaust duct and a smoke exhaust fan, the smoke exhaust duct and the smoke exhaust fan are both fixed to the top of the box, a smoke exhaust air valve is provided in the smoke exhaust duct, and when the smoke detector detects smoke in the inner box, the control box opens the smoke exhaust air valve and starts the smoke exhaust fan to draw the air in the box from the smoke exhaust duct to the outside of the box.

[0015] Furthermore, in one embodiment, the heater of the heating system and the evaporator of the refrigeration system are arranged on the periphery of the inner box, the heater is used to increase the temperature in the inner box, and the evaporator is used to reduce the temperature of the inner box.

[0016] Furthermore, in one embodiment, a circulating fan is also provided in the machine room, and the circulating fan is started to make the air in the inner box flow, so that the temperature and humidity at any position inside the inner box remain consistent.

[0017] Furthermore, in one embodiment, an over-temperature protector and an emergency stop switch are provided on the power distribution cabinet.

[0018] Furthermore, in one embodiment, the power distribution cabinet is provided with a power sample terminal, an RS485 interface and a network port.

[0019] Furthermore, in one embodiment, a test hole is provided on the outer box.

[0020] Furthermore, in one embodiment, the refrigeration system is a vapor compression refrigeration system, the power source of the refrigerant in the refrigeration system is a compressor, and the compressor is fixed at a lower position of the inner box.

[0021] The utility model according to the above scheme has the beneficial effect that the fire protection system of the present application is independently set up and controlled, and automatically and timely extinguishes the fire according to the detection results of the smoke detector and the gas concentration detector, reducing the damage to the test box caused by accidental fire during the test; and the smoke exhaust device can extract the air in the inner box to the outside of the box, destroying the fire environment in the inner box, reducing the fire loss, and timely emptying the smoke in the inner box is conducive to keeping the inner box clean. At the same time, the smoke exhaust device can effectively remove the harmful gases and smoke generated during the test, prevent their accumulation from possibly causing harm to the test equipment or personnel health, and improve the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 for Figure 1 A front view of an embodiment;

[0024] Figure 3 for Figure 1 Rear view of the embodiment.

[0025] In the figure, 100, box body; 110, box door; 120, explosion-proof window; 130, explosion-proof door; 140, test hole; 200, distribution cabinet; 210, power supply sample terminal; 220, RS485 interface; 230, network port; 310, control box; 320, carbon dioxide fire extinguishing device; 330, smoke exhaust device; 3301, smoke exhaust duct; 3302, smoke exhaust fan; 3303, smoke exhaust air valve; 340, smoke detector. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only. In the description of the utility model, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0027] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0028] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 and Figure 2As shown, the present application provides an embodiment of a constant temperature and humidity explosion-proof test box, in which the constant temperature and humidity explosion-proof test box includes a box body 100, a power distribution cabinet 200 and a fire protection system. The box body 100 includes an outer box and an inner box installed inside the outer box, and the object to be tested is placed in the inner box; the power distribution cabinet 200 is arranged outside the box body 100 and is used for electrical control of the constant temperature and humidity explosion-proof test box; the fire protection system includes a control box 310, a smoke detector 340, a gas concentration detector (not shown in the figure), a carbon dioxide fire extinguishing device 320 and an exhaust device, and the control box 310 is arranged outside the box body 100 and is respectively connected to the smoke detector 340, the gas concentration detector, the carbon dioxide fire extinguishing device 320 and the smoke exhaust device 330 Electrical connection, the smoke detector 340 is used to detect whether smoke is generated in the inner box, and the gas concentration detector is used to detect the concentration of specific gas in the inner box; the carbon dioxide fire extinguishing device 320 and the smoke exhaust device 330 are respectively connected to the inner box; in the inner box, when there is smoke and / or the concentration of specific gas exceeds the threshold, the control box 310 opens the carbon dioxide fire extinguishing device 320 to spray carbon dioxide gas into the inner box to extinguish the fire; when there is smoke, the control box 310 opens the smoke exhaust device 330 to extract the air in the inner box to the outside of the box body 100. The control box 310 of the fire protection system of the present application is independently set, and automatically and timely extinguishes the fire according to the detection results of the smoke detector 340 and the gas concentration detector, reducing the damage to the test box caused by accidental fire during the test; and the smoke exhaust device 330 can extract the air in the inner box to the outside of the box body 100, destroying the fire environment in the inner box, reducing the fire loss, and timely emptying the smoke in the inner box to reduce the combustion residue is conducive to the cleaning of the inner box. At the same time, the smoke exhaust device 330 can effectively remove harmful gases and smoke generated during the test process, prevent them from accumulating and possibly causing harm to the test equipment or personnel health, and improve the safety of the equipment.

[0030] In this embodiment, a sample rack is provided in the inner box, and the object to be tested is placed on the sample rack.

[0031] like Figure 1 and Figure 3 As shown, in this embodiment, the front side of the box body 100 is provided with an opening and closing box door 110, and the rear side of the outer box is provided with an explosion-proof door 130. When the pressure inside the box body 100 is higher than the set value, the explosion-proof door 130 automatically opens to balance the pressure inside and outside the box body 100, so that when a slight explosion occurs in the equipment, it can automatically release pressure to avoid the expansion of the accident and improve the safety of the equipment. An explosion-proof window 120 is also provided on the box door 110. The explosion-proof window 120 allows the user to intuitively observe the internal experimental conditions during the operation of the test box, so as to understand the experimental progress and results in real time. The explosion-proof window 120 is made of special materials and structural design, and has a certain explosion-proof function. When an abnormal situation or explosion occurs inside the test box, the explosion-proof window 120 can effectively withstand the impact and prevent the explosion from causing damage to the external environment and personnel.

[0032] In one embodiment, a mechanical room is formed between the inner box and the outer box, and a refrigeration system and a heating system are provided in the mechanical room to adjust the temperature and humidity in the inner box so as to keep the humidity and temperature in the inner box stable.

[0033] In one embodiment, the smoke exhaust device 330 includes a smoke exhaust pipe 3301 and a smoke exhaust fan 3302, both of which are fixed to the top of the box 100, and a smoke exhaust air valve 3303 is provided in the smoke exhaust pipe 3301. When the smoke detector 340 detects smoke in the inner box, the control box 310 opens the smoke exhaust air valve 3303 and starts the smoke exhaust fan 3302 to draw the air in the box 100 from the smoke exhaust pipe 3301 to the outside of the box 100. The smoke exhaust device 330 is connected to the inner box, and the smoke in the inner box can be drawn out of the box 100 along with the air, taking away the flammable and explosive gas generated during the test, destroying the combustion conditions in the inner box, preventing the open fire in the inner box from continuing to burn, and reducing the fire loss.

[0034] In one embodiment, the heater of the heating system and the evaporator of the refrigeration system are arranged at the periphery of the inner box, the heater is used to increase the temperature in the inner box, and the evaporator is used to reduce the temperature in the inner box. The heating system and the refrigeration system are separately set up to achieve rapid stabilization of the temperature in the inner box of the test box.

[0035] In one embodiment, a circulating fan is further provided in the machine room, and the circulating fan is started to flow the air in the inner box so that the temperature and humidity at any position inside the inner box remain consistent, which helps to improve the accuracy of the test.

[0036] In one embodiment, the power distribution cabinet 200 is provided with an over-temperature protector and an emergency stop switch. When the temperature inside the power distribution cabinet 200 exceeds a set threshold, the over-temperature protector starts to cut off the power supply of the power distribution cabinet 200 to protect the constant temperature and humidity explosion-proof test chamber. When the laboratory needs to be stopped urgently, the emergency stop switch can safely cut off the power supply of the power distribution cabinet 200. The over-temperature protector is a temperature-sensitive automatic protection device. Its main function is to quickly cut off the power supply when the internal temperature of the power distribution cabinet 200 exceeds the set value to prevent fire or damage to equipment due to excessive temperature. Ensure the safe operation of the power distribution cabinet 200

[0037] like Figure 2As shown, in one embodiment, the power distribution cabinet 200 is provided with a power sample terminal 210, an RS485 interface 220 and a network port 230. The power sample terminal 210 is generally used to connect the power input wire. Its main function is to distribute the electric energy in the main cable to each branch cable so as to supply different electrical equipment. The power sample terminal 210 row has functions such as power distribution, power management and power monitoring. By connecting electrical components such as switches and protectors, functions such as current control and short-circuit protection can be achieved, thereby ensuring the safe operation of power equipment. The RS485 interface 220 has the functions of electrical signal balance and support for multi-point systems. It can be effectively used in long distances and electrically noisy environments, and allows multiple devices to communicate simultaneously on the bus, thereby realizing serial communication between the power distribution cabinet 200 and other devices. The application of RS485 interface 220 in the power distribution cabinet 200 can greatly improve the intelligence and automation level of the power system, improve the management efficiency and utilization efficiency of the power system, and some advanced RS485 interface 220 devices, such as RS485 interface hubs, also have functions such as lightning protection, surge protection, and short circuit protection, which can ensure the stability and reliability of data communication in a complex electromagnetic field environment. The network port 230 generally refers to a network interface, which allows the power distribution cabinet 200 to be connected to a computer network to achieve data transmission and communication. This connection can be achieved through an Ethernet cable, so that the power distribution cabinet 200 can be connected to a local area network or a wide area network. It is of great significance to realize functions such as remote monitoring, data acquisition, and fault diagnosis.

[0038] In this embodiment, the number of network ports 230 is two, and the number of network ports 230 is two, which provides benefits such as redundant design, load balancing, and flexible configuration, thereby improving the network connection performance and reliability of the power distribution cabinet 200.

[0039] like Figure 3 As shown, in one embodiment, a test hole 140 is provided on the outer box. The test hole 140 is an orifice for external power supply, communication or equipment, so that the test box can conveniently detect parameter changes after the temperature environment changes during high temperature, low temperature, alternating humidity and heat or constant test. It should be noted that the existence of the test hole 140 may have a certain impact on the sealing of the test box. Therefore, when the test hole 140 is not used, it should be sealed with a cork board rubber plug or other sealing materials to ensure that the temperature and humidity environment in the test box is stable. At the same time, when using the test hole 140, attention should also be paid to ensuring the safety and reliability of the external equipment to avoid adverse effects on the test box or test results. The diameter or size of the test hole 140 may vary depending on the manufacturer and model. When selecting and using it, the user should pay attention to communicating with the manufacturer to ensure that the test hole 140 meets the actual use requirements.

[0040] In one embodiment, the refrigeration system is a vapor compression refrigeration system, the power source of the refrigerant in the refrigeration system is a compressor, and the compressor is fixed at the lower position of the inner box. The refrigeration technology of vapor compression refrigeration is mature, the structural components of the refrigeration system are small in size, and the cooling speed is fast.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0042] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A constant temperature and humidity explosion-proof test chamber, characterized in that: include, A box body, the box body comprising an outer box and an inner box installed inside the outer box, and the object to be tested is placed in the inner box; A power distribution cabinet, which is arranged outside the box and is used for electrical control of the constant temperature and humidity explosion-proof test box; A fire fighting system, the fire fighting system comprising a control box, a smoke detector, a gas concentration detector, a carbon dioxide fire extinguishing device and an exhaust device, the control box being arranged outside the box and being electrically connected to the smoke detector, the gas concentration detector, the carbon dioxide fire extinguishing device and the exhaust device respectively, the smoke detector being used to detect whether smoke is generated in the inner box, and the gas concentration detector being used to detect the concentration of a specific gas in the inner box; The carbon dioxide fire extinguishing device and the smoke exhaust device are respectively connected to the inner box; in the inner box, when there is smoke, and / or the concentration of a specific gas exceeds a threshold value, the control box turns on the carbon dioxide fire extinguishing device to spray carbon dioxide gas into the inner box to extinguish the fire; when there is smoke, the control box turns on the smoke exhaust device to draw the air in the inner box out of the box.

2. The constant temperature and humidity explosion-proof test chamber according to claim 1, characterized in that: The front side of the box body is provided with an opening and closing box door, and the rear side of the outer box is provided with an explosion-proof door.

3. The constant temperature and humidity explosion-proof test chamber according to claim 1, characterized in that: A mechanical room is formed between the inner box and the outer box, and a refrigeration system and a heating system are arranged in the mechanical room to adjust the temperature and humidity in the inner box.

4. The constant temperature and humidity explosion-proof test chamber according to claim 1, characterized in that: The smoke exhaust device includes a smoke exhaust duct and a smoke exhaust fan, both of which are fixed to the top of the box body. A smoke exhaust air valve is provided in the smoke exhaust duct. When the smoke detector detects smoke in the inner box, the control box opens the smoke exhaust air valve and starts the smoke exhaust fan to draw the air in the box body out of the smoke exhaust duct.

5. The constant temperature and humidity explosion-proof test chamber according to claim 3, characterized in that: The heater of the heating system and the evaporator of the refrigeration system are arranged at the peripheral side of the inner box. The heater is used to increase the temperature in the inner box, and the evaporator is used to reduce the temperature of the inner box.

6. The constant temperature and humidity explosion-proof test chamber according to claim 5, characterized in that: The machine room is also provided with a circulation fan, which is started to make the air in the inner box flow so that the temperature and humidity at any position inside the inner box remain consistent.

7. The constant temperature and humidity explosion-proof test chamber according to claim 3, characterized in that: The power distribution cabinet is provided with an over-temperature protector and an emergency stop switch.

8. The constant temperature and humidity explosion-proof test chamber according to claim 7, characterized in that: The power distribution cabinet is provided with a power sample terminal, an RS485 interface and a network port.

9. The constant temperature and humidity explosion-proof test chamber according to claim 8, characterized in that: The outer box is provided with a testing hole.

10. The constant temperature and humidity explosion-proof test chamber according to claim 3, characterized in that: The refrigeration system is a vapor compression refrigeration system, in which the power source of the refrigerant is a compressor, and the compressor is fixed at a lower position of the inner box.

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