Test bin capable of quickly humidifying and refrigerating

Abstract

The utility model belongs to the technical field of performance test devices, and particularly discloses a test bin capable of quickly humidifying and refrigerating. The device comprises a box body and a test bin, the test bin is located in the box body, a first layer cavity, a second layer cavity, a third layer cavity and a fourth layer cavity are sequentially formed in the box body from bottom to top, humidifying, heating and refrigerating modules are arranged on the two sides and the top of the test bin, and a drainage bottom plate is arranged at the bottom of the test bin. The humidifying, heating and refrigerating module is used for heat dissipation, so that accurate temperature control can be realized, equipment can operate at ideal temperature, stability is improved, faults are reduced, element aging can be slowed down, the service life of the equipment is prolonged, the temperature condition of the surrounding working environment can be improved, the heat dissipation mode can be flexibly adjusted according to different working conditions, and the service life of the equipment is prolonged. The adaptability of the equipment to various scenes is enhanced, and good operation and working environment optimization of the equipment are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of performance test devices, and more specifically, to a test chamber capable of rapid humidification and refrigeration. Background Art

[0002] The production of various products or materials, electrical equipment, instruments, electronic components and other products requires adaptability tests in high temperature, low temperature, high humidity, and hot and humid environments to detect whether the performance parameters of the products under different conditions meet the requirements.

[0003] Most of the existing waterproof and high and low temperature test devices have internal refrigeration systems that use air cooling. The heat dissipation efficiency is greatly affected by the ambient temperature. When the temperature is too high, it will trigger the high temperature overheating protection, which will produce greater operating pressure on the compressor. The life span will also be greatly affected, and the failure rate will increase accordingly. The energy consumption is high and the work efficiency is reduced. Utility Model Content

[0004] In order to solve the above problems, the present application provides a test chamber that can quickly humidify and cool.

[0005] The present application provides a test chamber capable of rapid humidification and refrigeration, which adopts the following technical solution:

[0006] A test chamber capable of rapid humidification and refrigeration, comprising a box body and a test chamber, wherein the test chamber is located inside the box body, an inner wall of the test chamber is provided with a heat insulation layer, the bottom of the box body is provided with shockproof and anti-slip feet, the inside of the box body is provided with a first layer cavity, a second layer cavity, a third layer cavity and a fourth layer cavity in sequence from bottom to top, humidification heating and refrigeration modules are provided on both sides and the top of the test chamber, a drainage bottom plate is provided at the bottom of the test chamber, and a plurality of through holes are provided inside the drainage bottom plate;

[0007] The humidifying heating and refrigeration module includes an electronic control device, a graphene heating device, a vapor compression refrigeration device, a filtering device, a water tank, a high-pressure pump group device and a fresh air device. The humidifying heating and refrigeration module is used to cool and dissipate heat inside the test chamber.

[0008] Furthermore, the electronic control device is installed inside the third cavity, the graphene heating device is installed on both sides of the test chamber, the vapor compression refrigeration device is installed inside the fourth cavity, the filter device, the water tank and the high-pressure pump group device are connected in sequence through pipelines, the filter device and the water tank are installed in the second cavity, the high-pressure pump group device is installed inside the first cavity, the fresh air device is installed inside the fourth cavity, and one side of the high-pressure pump group device is connected to a mist humidification device, which is located on both sides and the top of the interior of the test chamber.

[0009] Furthermore, the atomizing humidification device includes a high-pressure pipe, an atomizing nozzle, a spray seat and a fixed pipe clamp assembly. The spray seat is connected to one side of the high-pressure pipe, the atomizing nozzle is installed on one side of the spray seat, the number of atomizing nozzles is set to multiple, the atomizing nozzle is connected to the high-pressure pipe, the fixed pipe clamp assembly is made of stainless steel, the spray seat is fixedly installed on one side of the fixed pipe clamp assembly, the interior of the test chamber is provided with an inner lining cover plate, and one end of the fixed pipe clamp assembly is welded to the inner lining cover plate.

[0010] Furthermore, a box drain outlet is provided at the bottom of one side of the box, the number of atomizing and humidifying devices is set to three groups, a double door is provided on one side of the box, the double door and the test chamber are matched, an insulation board is provided on the side of the double door close to the test chamber, and a visual window is provided on one side of the double door.

[0011] Furthermore, a cable waterproof connector is provided on one side of the electric control device. The electric control device includes an electric control box, a PLC touch screen controller and a signal light. The PLC touch screen controller and the signal light are both located on one side of the box. The PLC touch screen controller and the signal light are both electrically connected to the electric control box. A visible waterproof and dustproof cover is provided on one side of the PLC touch screen controller and the signal light.

[0012] Furthermore, the PLC touch screen controller is electrically connected to the graphene heating device, the graphene heating device is located on one side of the high-pressure pipe, both ends of the graphene heating device are provided with insulation sections, and the graphene heating device is fixedly installed on the inner wall of the lining cover plate.

[0013] Through the above scheme, the graphene heating principle is based on the characteristics of single-layer graphene. The graphene is the material with the highest thermal conductivity so far and has very good thermal conductivity performance; secondly, the carrier (conductive ion) of graphene at room temperature is 15000cm / (vs), which is ten times that of silicon materials and more than twice that of indium antimonide (InSb), the material with the highest known carrier mobility; when the electrodes at both ends of the graphene heating module are energized, the carbon molecules in the electric heating film generate phonons, ions and electrons in the resistor, and the friction and collision (also called Brownian motion) between the generated carbon molecular clusters generate heat energy, which is uniformly radiated in a planar manner by controlling the far-infrared rays with a wavelength of 5-14 microns. The total conversion rate of effective electric heat energy is more than 99%, and the superconductivity of the special graphene material is added to ensure stable heating performance. The graphene heating device comprises a stainless steel back plate and a microcrystalline plate, wherein an aluminum alloy frame is arranged along the lower end of the stainless steel back plate, a groove is arranged in the middle of the upper section of the microcrystalline plate, an electric heating plate coated with a graphene coating is arranged in the middle of the upper end of the groove, electrodes are arranged on both sides of the upper end of the heating plate coated with the graphene coating, the microcrystalline plate is connected to the bottom of the aluminum alloy frame, a power line is arranged on the stainless steel back plate, the power line is electrically connected to the electrode, the stainless steel back plate is screwed onto a box fixing bracket after screws penetrate through mounting holes on the surface of a pad, the power line of the graphene heating device supplies power to the electrode after being connected to the power supply, the electrode generates heat after being energized, and the heating speed is fast, the temperature can reach up to 300°C, and water molecules in the air will not be consumed.

[0014] Furthermore, the high-pressure pump group device is located below the electronic control device, and the high-pressure pump group device includes a high-pressure pump motor, a low-pressure water inlet pressure gauge, a high-pressure water outlet pressure gauge, a high-pressure overflow pressure regulating valve, an oil temperature sensor and an oil drain valve. The high-pressure pump motor and the electronic control device are electrically connected, the low-pressure water inlet pressure gauge and the high-pressure water outlet pressure gauge are both installed on one side of the box body, the low-pressure water inlet pressure gauge is connected to one side of the filter device, an overflow pipe is provided on one side of the high-pressure overflow pressure regulating valve, the high-pressure overflow pressure regulating valve is connected to the water tank through the overflow pipe, the high-pressure overflow pressure regulating valve is connected to the high-pressure water outlet pressure gauge through the high-pressure pipe, and a shock-absorbing pad is provided at the bottom of the high-pressure pump group device.

[0015] Furthermore, the vapor compression refrigeration device and the fresh air device are both located at the top of the test chamber. The fresh air device includes a blower, a blower air inlet pipe and a blower exhaust pipe. The blower air inlet pipe is connected to the interior of the test chamber. One end of the blower exhaust pipe passes through the box and extends to the outside of the box. The vapor compression refrigeration device includes an evaporator, a compressor and a condenser. The vapor compression refrigeration device is connected to the electronic control device.

[0016] Through the above scheme, the vapor compression refrigeration device includes four basic components: a compressor, a condenser, an evaporator and a throttle valve, which are connected in sequence by pipes to form a closed system. The vapor compression refrigeration device is also equipped with an atomizing nozzle and a high-pressure electromagnetic valve. The refrigerant circulates continuously in the system, changes state, and exchanges heat with the outside world; after the liquid refrigerant absorbs the heat of the object to be cooled in the evaporator, it vaporizes into low-temperature and low-pressure steam, is sucked into the compressor, compressed into high-pressure and high-temperature steam, and then discharged into the condenser, releases heat to the cooling medium water mist wet air in the condenser, condenses into high-pressure liquid, is throttled by the throttle valve into low-pressure and low-temperature refrigerant, and enters the evaporator again to absorb heat and vaporize, achieving the purpose of circulating refrigeration; in this way, the refrigerant completes a refrigeration cycle through the four basic processes of evaporation, compression, condensation, and throttling in the system. The atomizing nozzle and the high-pressure electromagnetic valve are used for heat release and cooling of the condenser. The heat release port is provided with a temperature sensor, and the atomizing nozzle automatically starts and stops according to the heat release environment temperature, so that the condenser is at the optimal working temperature, improves working efficiency and service life, and reduces working condition energy consumption.

[0017] Furthermore, the filtering device is located at the bottom of the electronic control device, and the filtering device includes an ultrafiltration membrane filter, a softening resin filter and an activated carbon filter. The activated carbon filter is connected to the water tank through an inlet float valve, one end of the ultrafiltration membrane filter is connected to a filter drain valve, one side of the activated carbon filter is connected to a copper tube, the activated carbon filter is connected to a low-pressure water inlet pressure gauge through the copper tube, the water inlet of the filtering device is connected to a water supply pressure reducing valve, and one end of the water supply pressure reducing valve is connected to a water inlet through-plate of the chassis.

[0018] Furthermore, the water outlet of the water tank is connected to the water inlet of the high-pressure pump group device, and the water inlet of the water tank is connected to the water outlet of the filtering device. A reflux interface is provided on one side of the water tank, and the reflux interface is connected to one side of the high-pressure overflow pressure regulating valve. A liquid level sensing switch is provided at the bottom of one side of the water tank. A temperature and humidity sensor is provided inside the test chamber. The temperature and humidity sensor penetrates the inner lining cover plate and extends to the interior of the test chamber. The temperature and humidity sensor is fixedly installed on the inner lining cover plate. A plurality of fixing screws are provided inside the inner lining cover plate. The temperature and humidity sensor is connected to the electronic control device. An LED heat-resistant and waterproof lighting lamp is provided inside the test chamber. The LED heat-resistant and waterproof lighting lamp is connected to the electronic control device, and the LED heat-resistant and waterproof lighting lamp is fixedly installed on one side of the inner lining cover plate.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] The utility model can achieve precise temperature control by heat dissipation through the humidification heating and refrigeration module, ensure that the equipment operates at an ideal temperature, improve stability, thereby reducing the occurrence of failures, and slow down component aging, extending the life of the equipment. It can also improve the temperature conditions of the surrounding working environment, flexibly adjust the heat dissipation method according to different working conditions, enhance the adaptability of the equipment to various scenarios, and ensure that the equipment can operate well and the working environment is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the left internal structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the internal top view structure of the utility model.

[0024] Explanation of reference numerals: 1. Test chamber; 2. Double doors; 3. Waterproof and dustproof cover; 4. PLC touch screen controller; 5. Signal light; 6-1. Compressor; 6-2. Condenser; 7. Shockproof and anti-slip feet; 8. Visual window; 9. Low-pressure water inlet pressure gauge; 9-1. Copper tube; 10. High-pressure water outlet pressure gauge; 11. Cable waterproof connector; 12. Backflow interface; 13. Water inlet through-plate; 14. Filter drain valve; 15. Oil drain valve; 16. Box drain port; 17. Fixing screws; 18. Lining cover plate; 19. High-pressure pipe; 20. Atomizing nozzle; 21. Spray seat; 22. Fixed pipe clamp assembly; 23. Insulation section; 24. Graphene heating device; 25. Water tank; 26. Water supply pressure reducing valve; 27. High-pressure pump group device; 28. Shockproof pad; 29. ​​Filter device; 29-1. Ultrafiltration membrane filter; 29-2. Softening resin filter; 29-3. Activated carbon filter; 30. Electronic control device; 30-1. Temperature and humidity sensor; 31. Blower; 31-1. Blower air inlet pipe; 31-2. Blower exhaust pipe; 32. Water inlet float valve; 33. High-pressure overflow pressure regulating valve; 33-1. Overflow pipe; 34. Liquid level sensor switch; 35. Thermal insulation layer; 36. Humidification heating and cooling module; 37. LED heat-resistant and waterproof lighting. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0026] Reference Figure 1-Figure 3A test chamber capable of rapid humidification and refrigeration, comprising a box body and a test chamber 1, wherein the test chamber 1 is located inside the box body, an inner wall of the test chamber 1 is provided with a heat insulation layer 35, and the bottom of the box body is provided with shockproof and anti-slip feet 7, and the inside of the box body is provided with a first layer cavity, a second layer cavity, a third layer cavity and a fourth layer cavity from bottom to top, and humidification heating and refrigeration modules 36 are provided on both sides and the top of the test chamber 1, and a drainage bottom plate is provided at the bottom of the test chamber 1, and a plurality of through holes are provided inside the drainage bottom plate, and a box body sewage outlet 16 is connected to a sewage pipe, and the sewage in the test chamber 1 passes through the drainage bottom plate and the sewage pipe, and is finally discharged from the box body sewage outlet 16 to the outside of the box body;

[0027] The humidifying, heating and cooling module 36 includes an electronic control device 30, a graphene heating device 24, a vapor compression cooling device, a filtering device 29, a water tank 25, a high-pressure pump group device 27 and a fresh air device. The humidifying, heating and cooling module 36 is used to cool and dissipate heat inside the test chamber 1.

[0028] The humidification heating and cooling module 36 can cool and dissipate heat inside the test chamber 1. The specific operation method is as follows: first, the four groups of graphene heating devices 24 heat in sections according to the set value to heat the temperature in the test chamber 1 to the required value (≤300°C). When heat dissipation is required, a pressurized water source enters the filter device 29, and is supplied to the water tank 25 after filtration. The water in the water tank 25 enters the high-pressure pump group device 27 for pressurization and then flows along the high-pressure pipe 19 to the atomizing nozzle 20. The atomizing nozzle 20 sprays the water into mist particles, and the entire test chamber 1 is humidified through the three groups of atomizing nozzles distributed in the test chamber. The area is instantly filled with aerosol particles, the atomized particles reach 1-30 microns, and float evenly in the air, so that the air humidity reaches the set value. When the water tank 25 is dry, the liquid level sensor switch 34 will tell the electronic control device 30 to suspend the operation of the entire module. At the same time, the vapor compression refrigeration device performs frequency conversion refrigeration according to the set value, starts the compressor 6-1, condenser 6-2, throttle valve 6-3, high-pressure solenoid valve 6-4, atomizing nozzle 6-5 and temperature sensor 6-6, so that the temperature of the test chamber reaches the required value (≥-150℃), thereby realizing rapid humidification and refrigeration inside the test chamber 1.

[0029] Reference Figure 1-Figure 3The electric control device 30 is installed inside the third layer of the cavity. The electric control device 30 is used to control the operation of the electrical module in the overall device. The graphene heating device 24 is installed on both sides of the inside of the test chamber 1. The graphene heating device 24 is used to heat the ambient temperature in the test chamber 1. The vapor compression refrigeration device is installed inside the fourth layer of the cavity, and the cold air outlet of the vapor compression refrigeration device is connected to the inner cavity of the test chamber. The vapor compression refrigeration device is used to cool the ambient temperature in the test chamber 1. The filter device 29, the water tank 25 and the high-pressure pump group device 27 are connected in sequence through pipelines. The filter device 29 and the water tank 25 are installed in the second layer of the cavity. The high-pressure pump group device 27 is installed in the first layer of the cavity. The filter device 29, the water tank 25 and the high-pressure pump group device 27 are used to realize the high-pressure fog in the test chamber 1. The test chamber 1 has a humidifying function. The fresh air device is installed inside the fourth layer cavity. The fresh air device is used for ventilation in the test chamber 1. One side of the high-pressure pump group device 27 is connected with an atomizing humidifying device. The atomizing humidifying device is located on both sides and the top of the test chamber 1. The atomizing humidifying device can supply mist to the test chamber 1, thereby adjusting the humidity in the test chamber 1. The atomizing humidifying device is installed on both sides and the top of the test chamber 1. Three groups of atomizing humidifying devices are provided in the test chamber 1. Therefore, one group of atomizing humidifying devices is respectively installed on both sides and the top of the test chamber 1. Each group of atomizing humidifying devices includes 11 atomizing nozzles 20, and there are 33 atomizing nozzles 20 in total. In order to make the manufacturing refined, modular and simple, the atomizing nozzle 20 is connected by a segmented thread, and the humidity in the test chamber 1 is increased to 99%RH at most.

[0030] Reference Figure 1-Figure 3 The atomizing humidifying device includes a high-pressure pipe 19, an atomizing nozzle 20, a spray seat 21 and a fixed pipe clamp assembly 22. The spray seat 21 is connected to one side of the high-pressure pipe 19, and the atomizing nozzle 20 is installed on one side of the spray seat 21. The number of the atomizing nozzles 20 is set to multiple. The atomizing nozzle 20 is connected to the high-pressure pipe 19. The fixed pipe clamp assembly 22 is made of stainless steel. The spray seat 21 is fixedly installed on one side of the fixed pipe clamp assembly 22. The interior of the test chamber 1 is provided with an inner lining cover plate 18, and one end of the fixed pipe clamp assembly 22 is welded to the inner lining cover plate 18. The size of the high-pressure pipe 19 is set to 12mm, and the outer side of the 12mm high-pressure pipe 19 is provided with an insulation sleeve, which is fixedly installed on the inner lining cover plate 18. The atomizing nozzle 20 is arranged in the test chamber 1 and is distributed on both sides and the top of the test chamber 1. When the high-pressure water passes through the 12 mm high-pressure pipe 19, it is sprayed from the atomizing nozzle 20 into the test chamber 1, that is, sprayed from the top and both sides of the test chamber 1, thereby changing the humidity in the test chamber 1.

[0031] Reference Figure 1-Figure 3A box body sewage outlet 16 is provided at the bottom of one side of the box body, the number of the atomizing humidification device is set to three groups, a double-opening door 2 is provided on one side of the box body, the double-opening door 2 and the test chamber 1 are matched, and a heat insulation board is provided on the side of the double-opening door 2 close to the test chamber 1, and a visual window 8 is provided on one side of the double-opening door 2, through which the test conditions in the test chamber 1 can be viewed.

[0032] Reference Figure 1-Figure 3 A cable waterproof connector 11 is provided on one side of the electric control device 30. The electric control device 30 includes an electric control box, a PLC touch screen controller 4 and a signal light 5. The PLC touch screen controller 4 and the signal light 5 are both located on one side of the box. Figure 1 As shown, both the PLC touch screen controller 4 and the signal light 5 are electrically connected to the electric control box, and the operation of the PLC touch screen controller 4 and the signal light 5 is controlled by the electric control box. The PLC touch screen controller 4 and the signal light 5 are electrically connected to the electric control box, and a visible waterproof and dustproof cover 3 is provided on one side of the PLC touch screen controller 4 and the signal light 5.

[0033] Reference Figure 1-Figure 3 The PLC touch screen controller 4 is electrically connected to the graphene heating device 24, and the operation of the graphene heating device 24 is controlled by the PLC touch screen controller 4. Figure 3 As shown, the graphene heating device 24 is located on one side of the high-pressure pipe 19, and the graphene heating device 24 and the 12 mm high-pressure pipe 19 are separated by a 10 cm insulation section 23. Insulation sections 23 are provided at both ends of the graphene heating device 24. The graphene heating device 24 is fixedly installed on the inner wall of the lining cover plate 18. The insulation section 23 can minimize the temperature impact of the graphene heating device 24 on the 12 mm high-pressure pipe 19. Four groups of graphene heating devices 24 are provided on both sides of the test chamber 1, which are heated in three stages, and the temperature in the test chamber 1 can be heated to 200°C at the highest.

[0034] Reference Figure 1-Figure 3The high-pressure pump assembly 27 is located below the electronic control device 30. The high-pressure pump assembly 27 includes a high-pressure pump motor, a low-pressure water inlet pressure gauge 9, a high-pressure water outlet pressure gauge 10, a high-pressure overflow pressure regulating valve 33, an oil temperature sensor and an oil drain valve 15. The high-pressure pump motor and the electronic control device 30 are electrically connected. The low-pressure water inlet pressure gauge 9 and the high-pressure water outlet pressure gauge 10 are both installed on one side of the box. The low-pressure water inlet pressure gauge 9 is connected to one side of the filter device 29. The low-pressure water inlet pressure gauge 9 is connected to one side of the filter device 29. The force meter 9 is used to detect the water pressure of the filter device 29, wherein the high-pressure overflow pressure regulating valve 33 can adjust and control the high-pressure pump group device 27 to pressurize the water according to demand, and an overflow pipe 33-1 is provided on one side of the high-pressure overflow pressure regulating valve 33, and the high-pressure overflow pressure regulating valve 33 is connected to the water tank 25 through the overflow pipe 33-1. The high-pressure overflow pressure regulating valve 33 is connected to the high-pressure water outlet pressure gauge 10 through the high-pressure pipe 19, and a shock-absorbing pad 28 is provided at the bottom of the high-pressure pump group device 27.

[0035] Reference Figure 1-Figure 3 The vapor compression refrigeration device and the fresh air device are both located at the top of the test chamber 1. The fresh air device includes a blower 31, a blower air inlet pipe 31-1 and a blower exhaust pipe 31-2. The blower air inlet pipe 31-1 is connected to the interior of the test chamber 1. One end of the blower exhaust pipe 31-2 passes through the box and extends to the outside of the box. The vapor compression refrigeration device includes an evaporator, a compressor 6-1 and a condenser 6-2. The vapor compression refrigeration device is connected to the electronic control device 30. The vapor compression refrigeration device can realize stepless frequency conversion refrigeration, and the lowest temperature can reach -150°C. The vapor compression refrigeration device and the graphene heating device 24 can be used separately or in combination.

[0036] Reference Figure 1-Figure 3 The filtering device 29 is located at the bottom of the electronic control device 30. The filtering device 29 includes an ultrafiltration membrane filter 29-1, a softening resin filter 29-2 and an activated carbon filter 29-3. The activated carbon filter 29-3 is connected to the water tank 25 through a water inlet float valve. One end of the ultrafiltration membrane filter 29-1 is connected to a filter drain valve 14. One side of the activated carbon filter 29-3 is connected to a copper tube 9-1. The activated carbon filter 29-3 is connected to a low-pressure water inlet pressure gauge 9 through the copper tube 9-1. The water inlet of the filtering device 29 is connected to a water supply pressure reducing valve 26. One end of the water supply pressure reducing valve 26 is connected to a cabinet water inlet through plate 13.

[0037] Reference Figure 1-Figure 3The water outlet of the water tank 25 is connected to the water inlet of the high-pressure pump group device 27, and the water inlet of the water tank 25 is connected to the water outlet of the filter device 29. A reflux interface 12 is provided on one side of the water tank 25, and the reflux interface 12 is connected to one side of the high-pressure overflow pressure regulating valve 33. A liquid level sensing switch 34 is provided at the bottom of one side of the water tank 25.

[0038] The water supply source passes through a pipeline through the chassis water inlet plate 13 to be connected to the water supply pressure reducing valve 26, and then enters the first-stage filter, the second-stage filter and the third-stage filter for filtration treatment. Subsequently, it enters the water tank 25, and then enters the high-pressure pump unit 27 from the water tank 25, thereby generating high-pressure water. The high-pressure water passes through the 12mm high-pressure pipe 19 and is sprayed from the atomizing nozzle 20 into the test chamber 1, thereby changing the humidity in the test chamber 1.

[0039] Reference Figure 1-Figure 3 A temperature and humidity sensor 30-1 is provided inside the test chamber 1. The temperature and humidity sensor 30-1 penetrates the inner lining cover 18 and extends to the inside of the test chamber 1. The temperature and humidity sensor 30-1 is fixedly mounted on the inner lining cover 18. A plurality of fixing screws 17 are provided inside the inner lining cover 18. The temperature and humidity sensor 30-1 is connected to the electric control device 30. An LED heat-resistant and waterproof lighting lamp 37 is provided inside the test chamber 1. The LED heat-resistant and waterproof lighting lamp 37 is connected to the electric control device 30 and is fixedly mounted on one side of the inner lining cover 18.

[0040] The liquid level sensing switch 34, the temperature and humidity sensor 30-1, the high-pressure pump group device 27, the blower 31, the vapor compression refrigeration device, the graphene heating device, the oil temperature sensor and the oil drain valve 15 are all electrically connected to the electronic control device 30. Therefore, the operation of the liquid level sensing switch 34, the temperature and humidity sensor 30-1, the high-pressure pump group device 27, the blower 31, the vapor compression refrigeration device, the graphene heating device, the oil temperature sensor and the oil drain valve 15 are all controlled by the electronic control device 30.

[0041] It should be noted that the process algorithms and programs involved in the control process of the electronic control device 30 in this embodiment are not within the scope of protection of the present utility model, and the process algorithms and programs involved can be obtained by technicians in this field through conventional techniques, so they are only used for technicians in this field to understand the control process of the electronic control device 30 in this embodiment.

[0042] Working principle: After placing the product in the test chamber 1 and closing the double-door 2, the required test parameter values ​​are set on the PLC touch screen controller 4, and the test chamber 1 starts to automatically operate according to the set values. First, the four groups of graphene heating devices 24 heat in sections according to the set values ​​to heat the temperature in the test chamber 1 to the required value (≤300°C). When heat dissipation is required, a pressurized water source enters the filter device 29, and is supplied to the water tank 25 after filtration. The water in the water tank 25 enters the high-pressure pump group device 27 for pressurization and then flows along the high-pressure pipe 19 to the atomizing nozzle 20. The atomizing nozzle 20 sprays the water into mist particles, which are distributed in the test chamber. The three groups of atomizing nozzles fill the entire test chamber 1 area with aerosol particles instantly. The atomized particles reach 1-30 microns and float evenly in the air, so that the air humidity reaches the set value. When the water tank 25 is dry, the liquid level sensor switch 34 will tell the electronic control device 30 to suspend the operation of the entire module. At the same time, the vapor compression refrigeration device performs frequency conversion refrigeration according to the set value, starts the compressor 6-1, condenser 6-2, throttle valve 6-3, high-pressure solenoid valve 6-4, atomizing nozzle 6-5 and temperature sensor 6-6, so that the temperature of the test chamber reaches the required value (≥-150℃), thereby realizing rapid humidification and refrigeration inside the test chamber 1.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A test chamber capable of rapid humidification and refrigeration, comprising a box body and a test chamber (1), characterized in that: The test chamber (1) is located inside the box body, the inner wall of the test chamber (1) is provided with a heat insulation layer (35), the bottom of the box body is provided with shock-proof and anti-slip feet (7), the inside of the box body is provided with a first cavity layer, a second cavity layer, a third cavity layer and a fourth cavity layer from bottom to top, the two sides and the top of the test chamber (1) are provided with humidification heating and cooling modules (36), the bottom of the test chamber (1) is provided with a drainage bottom plate, and the inside of the drainage bottom plate is provided with a plurality of through holes; The humidifying, heating and refrigerating module (36) comprises an electric control device (30), a graphene heating device (24), a vapor compression refrigerating device, a filtering device (29), a water tank (25), a high-pressure pump unit (27) and a fresh air device. The humidifying, heating and refrigerating module (36) is used to cool and dissipate heat inside the test chamber (1).

2. A test chamber capable of rapid humidification and refrigeration according to claim 1, characterized in that: The electric control device (30) is installed inside the third cavity layer, the graphene heating device (24) is installed on both sides inside the test chamber (1), the vapor compression refrigeration device is installed inside the fourth cavity layer, the filter device (29), the water tank (25) and the high-pressure pump group device (27) are connected in sequence through pipelines, the filter device (29) and the water tank (25) are installed in the second cavity layer, the high-pressure pump group device (27) is installed inside the first cavity layer, the fresh air device is installed inside the fourth cavity layer, and one side of the high-pressure pump group device (27) is connected to an atomizing humidification device, and the atomizing humidification device is located on both sides and the top of the interior of the test chamber (1).

3. A test chamber capable of rapid humidification and refrigeration according to claim 2, characterized in that: The atomizing humidifying device comprises a high-pressure pipe (19), an atomizing nozzle (20), a spray seat (21) and a fixed pipe clamp assembly (22); the spray seat (21) is connected to one side of the high-pressure pipe (19); the atomizing nozzle (20) is mounted on one side of the spray seat (21); the number of the atomizing nozzles (20) is set to be multiple; the atomizing nozzle (20) is connected to the high-pressure pipe (19); the fixed pipe clamp assembly (22) is made of stainless steel; the spray seat (21) is fixedly mounted on one side of the fixed pipe clamp assembly (22); an inner lining cover plate (18) is provided inside the test chamber (1); one end of the fixed pipe clamp assembly (22) is welded to the inner lining cover plate (18).

4. A test chamber capable of rapid humidification and refrigeration according to claim 3, characterized in that: A box body sewage outlet (16) is provided at the bottom of one side of the box body, the number of the atomizing and humidifying devices is set to three groups, a double-leaf door (2) is provided on one side of the box body, the double-leaf door (2) and the test chamber (1) are matched, a heat insulation board is provided on the side of the double-leaf door (2) close to the test chamber (1), and a visual window (8) is provided on one side of the double-leaf door (2).

5. A test chamber capable of rapid humidification and refrigeration according to claim 4, characterized in that: A cable waterproof connector (11) is provided on one side of the electric control device (30). The electric control device (30) comprises an electric control box, a PLC touch screen controller (4) and a signal light (5). The PLC touch screen controller (4) and the signal light (5) are both located on one side of the box. The PLC touch screen controller (4) and the signal light (5) are both electrically connected to the electric control box. A visible waterproof and dustproof cover (3) is provided on one side of the PLC touch screen controller (4) and the signal light (5).

6. A test chamber capable of rapid humidification and refrigeration according to claim 5, characterized in that: The PLC touch screen controller (4) is electrically connected to the graphene heating device (24); the graphene heating device (24) is located on one side of the high-pressure pipe (19); both ends of the graphene heating device (24) are provided with heat insulation sections (23); and the graphene heating device (24) is fixedly mounted on the inner wall of the lining cover plate (18).

7. A test chamber capable of rapid humidification and refrigeration according to claim 1, characterized in that: The high-pressure pump assembly device (27) is located below the electronic control device (30). The high-pressure pump assembly device (27) comprises a high-pressure pump motor, a low-pressure water inlet pressure gauge (9), a high-pressure water outlet pressure gauge (10), a high-pressure overflow pressure regulating valve (33), an oil temperature sensor and an oil drain valve (15). The high-pressure pump motor and the electronic control device (30) are electrically connected. The low-pressure water inlet pressure gauge (9) and the high-pressure water outlet pressure gauge (10) are both installed on one side of the box body. The low-pressure water inlet pressure gauge (9) is connected to one side of the filter device (29). An overflow pipe (33-1) is provided on one side of the high-pressure overflow pressure regulating valve (33). The high-pressure overflow pressure regulating valve (33) is connected to the water tank (25) through the overflow pipe (33-1). The high-pressure overflow pressure regulating valve (33) is connected to the high-pressure water outlet pressure gauge (10) through a high-pressure pipe (19). A shock-absorbing pad (28) is provided at the bottom of the high-pressure pump assembly device (27).

8. The test chamber capable of rapid humidification and refrigeration according to claim 1, characterized in that: The vapor compression refrigeration device and the fresh air device are both located at the top of the test chamber (1); the fresh air device comprises a blower (31), a blower air inlet pipe (31-1) and a blower exhaust pipe (31-2); the blower air inlet pipe (31-1) is connected to the interior of the test chamber (1); one end of the blower exhaust pipe (31-2) passes through the box body and extends to the outside of the box body; the vapor compression refrigeration device comprises an evaporator, a compressor (6-1) and a condenser (6-2); and the vapor compression refrigeration device is connected to the electronic control device (30).

9. The test chamber capable of rapid humidification and refrigeration according to claim 1, characterized in that: The filtering device (29) is located at the bottom of the electronic control device (30). The filtering device (29) comprises an ultrafiltration membrane filter (29-1), a softening resin filter (29-2) and an activated carbon filter (29-3). The activated carbon filter (29-3) is connected to the water tank (25) via a water inlet float valve. One end of the ultrafiltration membrane filter (29-1) is connected to a filter drain valve (14). One side of the activated carbon filter (29-3) is connected to a copper tube (9-1). The activated carbon filter (29-3) is connected to a low-pressure water inlet pressure gauge (9) via the copper tube (9-1). The water inlet of the filtering device (29) is connected to a water supply pressure reducing valve (26). One end of the water supply pressure reducing valve (26) is connected to a water inlet through plate (13) of the machine box.

10. A test chamber capable of rapid humidification and refrigeration according to claim 9, characterized in that: The water outlet of the water tank (25) is connected to the water inlet of the high-pressure pump assembly (27), and the water inlet of the water tank (25) is connected to the water outlet of the filter device (29). A reflux interface (12) is provided on one side of the water tank (25), and the reflux interface (12) is connected to one side of the high-pressure overflow pressure regulating valve (33). A liquid level sensing switch (34) is provided on the bottom of one side of the water tank (25). A temperature and humidity sensor (30-1) is provided inside the test chamber (1), and the temperature and humidity sensor (30-1) penetrates the inner lining cover plate (18). ) extends into the interior of the test chamber (1), the temperature and humidity sensor (30-1) is fixedly mounted on the inner lining cover plate (18), a plurality of fixing screws (17) are provided inside the inner lining cover plate (18), the temperature and humidity sensor (30-1) is connected to the electric control device (30), an LED heat-resistant and waterproof lighting lamp (37) is provided inside the test chamber (1), the LED heat-resistant and waterproof lighting lamp (37) is connected to the electric control device (30), and the LED heat-resistant and waterproof lighting lamp (37) is fixedly mounted on one side of the inner lining cover plate (18).

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