Four-in-one Comprehensive Marine Climate Simulation Test Chamber

Abstract

The present invention discloses a four-integrated marine climate simulation test chamber. The chamber comprises a workroom and a unit room. The workroom is equipped with a temperature control system, a humidity control system, a lighting system, and a salt spray system. The temperature control system is used to switch the temperature in the workroom between high temperature, normal temperature, and low temperature; the humidity control system is used to change the humidity environment in the workroom; the lighting system is used to simulate ultraviolet radiation; and the salt spray system is used to create a salt spray environment in the workroom. The present invention has the beneficial effect that, when the temperature control system, the humidity control system, the lighting system, and the salt spray system are activated simultaneously, the workroom can simulate a marine climate environment that includes four environmental factors: temperature, humidity, ultraviolet radiation, and salt spray.

Description

Technical Field

[0001] The present invention relates to the technical field of product environment testing, and in particular to a four-integrated ocean climate simulation test chamber. Background Art

[0002] Environmental testing involves placing a product in a test chamber, which simulates environmental factors to test its reliability in that environment. Environmental testing plays a crucial role in ensuring product quality and reliability.

[0003] Marine climate refers to the climate of areas near the ocean. When used in marine climate environments, the performance of products such as ships and port equipment is primarily affected by temperature, humidity, UV radiation, and salt spray or saline liquids. In existing environmental test chambers, temperature, humidity, UV radiation, and salt spray simulations are typically separate chambers, coupling only two of these environmental factors at most. Currently, no chamber integrates all four environmental factors. Therefore, there is an urgent need to design a test chamber that can combine temperature, humidity, UV radiation, and salt spray simulations to meet the environmental testing requirements of products used in marine climates. Summary of the Invention

[0004] In view of the above situation, the present invention provides a four-integrated marine climate simulation test chamber that can simultaneously simulate temperature, humidity, ultraviolet radiation and salt spray environment.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A four-integrated marine climate simulation test chamber comprises a chamber body having a workroom and a unit room. The key features of the chamber are that a temperature control system, a humidity control system, a lighting system, and a salt spray system are arranged in the workroom. The temperature control system is used to switch the temperature in the workroom between high temperature, normal temperature, and low temperature; the humidity control system is used to change the humidity environment in the workroom; the lighting system is used to simulate ultraviolet light irradiation; and the salt spray system is used to form a salt spray environment in the workroom.

[0007] Preferably, the temperature control system includes an electric heating device and an evaporator located in the working chamber, the electric heating device is used to increase the temperature of the working chamber, and the evaporator is used to reduce the temperature of the working chamber.

[0008] Preferably, the temperature control system further comprises a cold coil and a hot coil, wherein the cold coil is fixed to the upper portion of the inner wall of the working chamber, and the hot coil is fixed to the lower portion of the inner wall of the working chamber.

[0009] Preferably, the humidity control system includes a humidifier and an air inlet pipe installed on the humidifier. The humidifier is fixedly installed in the unit room, and one end of the air inlet pipe away from the humidifier is located in the working room.

[0010] Preferably, the lighting system includes a lamp support plate and a purple lamp fixed on the back side of the lamp support plate, and the lamp support plate is installed at an angle on the top of the studio; a product holder is provided at the lower part of the studio, and the product holder includes a base and a support plate, the front end of the support plate is rotatably connected to the base, and an adjustment mechanism is provided between the rear end and the base, and the adjustment mechanism can change the height of the rear end of the support plate to adjust the inclination angle of the support plate.

[0011] Preferably, the base is provided with a strip groove extending in the horizontal direction, and the adjustment mechanism includes a connecting rod, a support screw fixed at the end of the connecting rod, and a nut arranged on the support screw. The end of the connecting rod away from the support screw is hinged to the rear end of the support plate, and the support screw is installed in the strip groove.

[0012] Preferably, the salt spray system includes a salt spray nozzle and a liquid supply pipe and an air supply pipe connected to the salt spray nozzle, the end of the liquid supply pipe away from the nozzle is connected to a brine tank, a peristaltic pump is provided on the liquid supply pipe, the end of the air supply pipe away from the nozzle is connected to an air source, and the air supply pipe is sequentially provided with a primary pressure regulating valve, a primary pressure regulating gauge, an oil-water filter, a spray pressure regulating valve, a spray pressure gauge, a solenoid valve and a saturation barrel; the salt spray nozzle is fixedly installed inside the studio, and the brine tank and air source are installed outside the box or in the unit room.

[0013] Preferably, the unit room is provided with a forced exhaust pipe extending from bottom to top, the lower end of the forced exhaust pipe is connected to the working room, the upper end is installed with an exhaust fan, a pipe valve is provided on the forced exhaust pipe, an air inlet is provided on one side of the upper part of the working room, and a damper mechanism is installed on the air inlet, the damper mechanism includes a bracket fixedly installed on the outside of the air inlet, a cylinder assembly is fixedly installed on the bracket, a damper plate is fixedly connected to the piston rod of the cylinder assembly, the damper plate is opposite to the air inlet, and a sealing strip surrounding the circumference of the damper plate is fixedly installed on the inner side of the damper plate, the cylinder assembly drives the damper plate to move toward the direction close to the air inlet, so that the air inlet can be closed, and the cylinder assembly drives the damper plate to move away from the air inlet, so that the air inlet can be opened.

[0014] Preferably, several sets of metering feedback components are installed at the lower part of the box, and the metering feedback components each include a salt spray funnel and a metering cylinder. The salt spray funnel is installed inside the studio, and the metering cylinder is installed outside the box. The salt spray funnel and the metering cylinder are connected by a pipeline, and the installation height of the salt spray funnel is higher than the metering cylinder.

[0015] Preferably, a liquid nitrogen tank is provided in the unit room, a liquid nitrogen nozzle is arranged in the working room, and a liquid nitrogen pipeline is connected between the liquid nitrogen nozzle and the liquid nitrogen tank.

[0016] The beneficial effects of the present invention are:

[0017] 1. After placing the product to be tested in the studio, the temperature control system, humidity control system, lighting system and salt spray system are started at the same time. The studio can then simulate the marine climate environment that includes four environmental factors: temperature, humidity, ultraviolet radiation and salt spray.

[0018] 2. The temperature control system, humidity control system, lighting system and salt spray system can also be started independently or partially coupled, so as to meet more types of environmental tests, such as: separate temperature test, separate humidity test, separate lighting test, separate salt spray test, salt spray and light coupling test, etc.

[0019] 3. The cold coil and hot coil of the temperature control system can accurately control the temperature of the studio, avoid the temperature being affected by the heat of the ultraviolet lamp and the coldness of the salt mist, and ensure that the studio temperature is infinitely close to the preset test temperature, thereby improving the accuracy of environmental testing.

[0020] 4. The salt spray system uses a peristaltic pump to deliver salt water, ensuring the same amount of salt water is delivered to the nozzle each time. Furthermore, the air supply pipe is equipped with a primary pressure regulating valve and a spray pressure regulating valve for two-stage pressure control, ensuring the same amount of air is delivered to the nozzle each time. As a result, the total amount of salt spray sprayed from the nozzle each time, as well as the ratio of salt water to air, are highly consistent, improving spray uniformity within the test chamber.

[0021] 5. The lighting system's lamp support plate is tilted, allowing condensed water to flow down the side walls of the workroom along the slope, preventing it from dripping onto the product. At the same time, an adjustment mechanism allows the support plate to be parallel to the lamp support plate, ensuring that the sample on the support plate is aligned with the UV lamp, ensuring that the sample receives sufficient light intensity and dosage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the front view of the four comprehensive marine climate simulation test chambers;

[0023] Figure 2 For the Figure 1 Cross-sectional view of AA;

[0024] Figure 3 For the Figure 1 Cross-sectional view of CC;

[0025] Figure 4 For the Figure 2 Cross-sectional view of the middle DD;

[0026] Figure 5 For the Figure 1 Cross-sectional view of EE;

[0027] Figure 6It is a partial cross-sectional view of the test chamber at the position of the damper mechanism 8;

[0028] Figure 7 A partial cross-sectional view of the test chamber at the location of one set of metering feedback components 6;

[0029] Figure 8 This is a schematic diagram of the working principle of the salt spray system;

[0030] Figure 9 It is a structural schematic diagram of the product bracket 5. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0032] like Figure 1 As shown, a marine climate simulation test chamber includes a chamber 1, which has a working room 1a and a unit room 1b. The working room 1a is equipped with a temperature control system, a humidity control system, a lighting system, and a salt spray system. The temperature control system is used to simulate the temperature parameters in the marine climate and can switch the temperature in the working room 1a between high temperature, normal temperature, and low temperature. The humidity control system is used to simulate the humidity parameters in the marine climate and can adjust the humidity of the working room 1a. The lighting system is used to simulate the ultraviolet radiation in the marine climate. The salt spray system is used to simulate the salt spray environment in the marine climate and can form a salt spray environment in the working room 1a.

[0033] Based on the above test chamber design, after placing the product to be tested in Studio 1a, the temperature control system, humidity control system, lighting system, and salt spray system are activated simultaneously. Studio 1a can simulate a marine climate environment that includes four environmental factors: temperature, humidity, UV radiation, and salt spray. In addition to being activated simultaneously, the four systems can also be activated independently or partially coupled, thus meeting a wide range of environmental tests, such as independent temperature tests, independent humidity tests, independent lighting tests, independent salt spray tests, and salt spray and light coupled tests.

[0034] This embodiment provides an implementation structure of a temperature control system, as follows:

[0035] Please refer to Figure 4As shown, the temperature control system includes an electric heater 2a, an evaporator 2b, a cold coil 2c, and a hot coil 2d. The electric heater 2a and evaporator 2b are fixedly mounted in the workroom 1a near the unit room 1b. Activating the electric heater 2a heats the workroom 1a, while activating the evaporator 2b cools the workroom 1a. The cold coil 2c and hot coil 2d fine-tune the temperature in the workroom 1a, ensuring that the workroom's ambient temperature is as close to the preset test temperature as possible, thereby improving the accuracy of environmental testing. For example, when the lighting system intensity is too high, the temperature of the workroom 1a will inevitably rise. In this case, the cold coil 2c can be activated to slightly lower the temperature of the workroom 1a. Another example is when the salt spray system is activated, causing the salt spray to slightly drop the temperature of the workroom 1a. In this case, the hot coil 2d can be activated to slightly raise the temperature of the workroom 1a.

[0036] Furthermore, to ensure efficient and accurate temperature adjustment, this embodiment secures the cold coil 2c to the upper portion of the inner wall of the workroom 1a, while the hot coil 2d to the lower portion. Because hot air always flows upward, the upper cold coil 2c can more sensitively and quickly balance high temperatures, while the lower hot coil 2d, which always flows downward, can more sensitively and quickly balance low temperatures.

[0037] For example Figure 4 As shown, the test chamber is also equipped with a rapid cooling system, specifically: a liquid nitrogen tank 9a is provided in the unit room 1b, a liquid nitrogen nozzle 9b is arranged in the working room 1a, and a liquid nitrogen pipeline 9c is connected between the liquid nitrogen nozzle 9b and the liquid nitrogen tank 9a. Liquid nitrogen is injected into the working room 1a through the liquid nitrogen nozzle 9b, which can quickly restore the temperature of the working room 1a to normal temperature. This not only makes it convenient for staff to enter the working room to take and place samples, but also enables the next round of testing to start more quickly.

[0038] For example Figure 4 As shown, the humidity control system can adopt conventional humidification technology, and its structure includes a humidifier 3a and an air inlet pipe 3b installed on the humidifier 3a. The humidifier 3a is fixedly assembled in the unit room 1b, and the end of the air inlet pipe 3b away from the humidifier 3a is located in the working room 1a. The humidifier 3a can provide a humidity environment for the test box when it is working.

[0039] This embodiment provides an implementation structure of a lighting system as follows:

[0040] Please refer to Figure 2As shown, the lighting system includes a lamp support plate 4b and a UV lamp 4a fixed to the back of the lamp support plate 4b. The lamp support plate 4b is installed at an angle on the top of the workroom 1a. A product holder 5 is located at the bottom of the workroom 1a. When the product is placed on the product holder 5, the UV lamp 4a is activated to provide the product with an ultraviolet irradiation environment. When the test chamber performs marine environmental testing on the product, the mist inside the workroom 1a will produce condensation on the lower surface of the lamp support plate 4b. The condensation will drain downward from the side wall of the workroom 1a along the inclined surface of the lamp support plate 4b, preventing the condensation from dripping directly onto the product. This not only protects the product from saltwater corrosion, but also improves test accuracy.

[0041] Furthermore, the lamp support plate 4b has a hollow chamber 4b1 along its thickness. This creates a double-layer structure, providing thermal insulation and reducing the temperature difference between the inside and outside of the lower surface of the lamp support plate 4b, thereby minimizing the formation of condensation. A triangular chamber 4d is formed between the lamp support plate 4b and the top of the housing 1. A heat exchange fan 4c is mounted on the top of the housing 1. This fan 4c promptly exhausts the hot air from the triangular chamber 4d and reduces the temperature difference between the inside and outside of the lamp support plate 4b along its thickness, thereby helping to reduce the formation of condensation.

[0042] Since the lamp support plate 4b is in an inclined position, the light emitted by the purple lamp 4a is also oblique. In order to ensure that the purple lamp 4a is facing the product and ensure that the product receives sufficient light intensity and light dosage, the product bracket 5 is designed to be an adjustable structure in this embodiment. Figure 9 It can be seen that the product holder 5 includes a base 5a and a support plate 5b. The front end of the support plate 5b is rotatably connected to the base 5a, and an adjustment mechanism 5c is provided between the rear end and the base 5a. The height of the rear end of the support plate 5b can be changed through the adjustment mechanism 5c, thereby adjusting the inclination angle of the support plate 5b. When the support plate 5b is parallel to the lamp support plate 4b, it can ensure that the product is facing the light emitted by the ultraviolet lamp 4a, so that the sample can receive sufficient light intensity and light dosage.

[0043] Furthermore, the implementation structure of the adjustment mechanism 5c is specifically as follows: a strip groove 5a1 extending horizontally is provided on the base 5a, and the adjustment mechanism 5c includes a connecting rod 5c1, a support screw 5c2 fixed to the end of the connecting rod 5c1, and a nut 5c3 configured on the support screw 5c2. The end of the connecting rod 5c1 away from the support screw 5c2 is hinged to the rear end of the support plate 5b, and the support screw 5c2 is installed in the strip groove 5a1. By adjusting the position of the screw 5c2 in the strip hole 5a1, the height of the rear end of the support plate 5b can be changed, thereby adjusting the inclination angle of the support plate 5b. The support plate 5b is composed of a rectangular frame 5b1 and a crossbar 5b2 arrayed and distributed within the rectangular frame 5b1. Such a design can ensure that the mist of the salt spray system has a better effect on the circumferential surface of the product.

[0044] For example Figure 2 As shown, in order to take into account the water guiding efficiency of the lamp support plate 4b and the feasibility of the support plate 5b facing the lamp support plate 4b, the inclination angle of the lamp support plate 4b relative to the horizontal plane is selected from 20 to 40 degrees, and 30 degrees is preferred in this embodiment.

[0045] This embodiment provides an implementation structure of a salt spray system as follows:

[0046] Please refer to Figure 8 As shown, the salt spray system includes a nozzle a, connected to a liquid supply pipe b and an air supply pipe c. The end of the liquid supply pipe b remote from the nozzle a is connected to a brine tank d. A peristaltic pump e is installed on the liquid supply pipe c, and the end of the air supply pipe c remote from the nozzle a is connected to an air source f. The air supply pipe c is sequentially equipped with a primary pressure regulating valve g, a primary pressure regulating gauge h, an oil-water filter i, a spray pressure regulating valve j, a spray pressure gauge k, a solenoid valve m, and a saturation tank n. The brine tank d and air source f are mounted outside the housing 1 or within the unit compartment 1b. The nozzles a are fixedly mounted on the ceiling or side walls of the working chamber 1a. Multiple groups of nozzles a can be evenly distributed within the working chamber 1a. When the solenoid valve m is opened, the air source f supplies air to the nozzles a through the air supply pipe c. Simultaneously, the peristaltic pump e supplies brine to the nozzles a through the liquid supply pipe b. The nozzles a then spray the brine into the working chamber 1a in the form of a spray, simulating a salt spray environment. The salt spray system uses a peristaltic pump e to deliver salt water, ensuring a consistent amount of salt water is delivered to nozzle a each time. The air supply pipe c is equipped with a primary pressure regulating valve g and a spray pressure regulating valve j for two-stage pressure control, ensuring a consistent air volume is delivered to nozzle a each time. This results in a uniform salt spray spray from the nozzles. Furthermore, an oil-water filter i on the air supply pipe c removes impurities such as oil and water from the air source f, ensuring the purity of the salt spray simulated in studio 1a.

[0047] For example Figure 3As shown, a forced exhaust pipe 7 is arranged in the unit room 1b, and the forced exhaust pipe 7 extends from bottom to top, and an exhaust fan 7b is provided at the upper end thereof. A pipe valve 7a is provided on the forced exhaust pipe 7. Figure 2 and 4 It can be seen that the lower end of the forced exhaust pipe is connected to the working room 1a, and an air inlet 1d is provided on the side of the working room 1a. A damper mechanism 8 is installed on the air inlet 1d, and the damper mechanism 8 is used to close or open the air inlet 1d. When the salt spray test is carried out inside the working room 1a, the damper mechanism 8 and the pipe valve 7a are both in a closed state. After the salt spray test is completed, the damper mechanism 8 and the pipe valve 7a are both opened, and then the exhaust fan 7b is started. The salt spray inside the working room 1a can be discharged from the forced exhaust pipe 7, and the outside air can enter the working room 1a from the air inlet 1d, which helps to accelerate the discharge of salt spray from the forced exhaust pipe 7. The advantage of such a design is that after the test is completed, the salt spray is discharged from the interior of the equipment in a timely manner, which can prevent the salt spray from corroding the relevant components inside the test box and help to extend the service life. On the other hand, discharging the salt spray in a timely manner can also provide a better and safer environment for taking and placing samples for the staff.

[0048] Because salt mist will sink inside the studio 1a, the location where the forced exhaust pipe 7 is connected to the studio 1a is arranged at the lower part of the studio 1a, and the air inlet 1d is arranged at the upper part of the studio 1a, which can improve the salt mist exhaust efficiency.

[0049] Please refer to Figure 6 The damper mechanism 8 comprises a bracket 8a fixedly mounted on the exterior of the air inlet 1d. A cylinder assembly 8b is fixedly mounted on bracket 8a, with the axis of cylinder assembly 8b parallel to the centerline of the air inlet 1d. A damper plate 8c is fixedly connected to the piston rod of cylinder assembly 8b, which faces the air inlet 1d. Cylinder assembly 8b drives damper plate 8c toward or away from the air inlet 1d to open and close the air inlet 1d. To enhance sealing performance in the closed state, a sealing strip 8d is fixedly mounted on the inner side of damper plate 8c, encircling the circumference of the damper plate 8c.

[0050] For example Figure 3 、 5 As shown, the forced exhaust pipe 7 is a three-way pipe. One of the three-way pipes is connected to the working chamber 1a. Another port is equipped with an exhaust fan 7b, and the other port is equipped with a pressure relief device 7c. When high pressure is generated inside the working chamber 1a due to a rapid temperature rise, the pressure is relieved by the pressure relief device 7c, thereby ensuring testing safety. The pressure relief device 7c and exhaust fan 7b are integrated into the three-way pipe, which helps optimize product size and reduce volume.

[0051] For example Figure 2 As shown, several sets of metering feedback components 6 are installed at the bottom of the box 1. Figure 7As can be seen, the metering feedback assembly 6 includes a salt spray funnel 6a and a metering cylinder 6b. The salt spray funnel 6a is installed inside the working chamber 1a, while the metering cylinder 6b is installed outside the housing 1. The salt spray funnel 6a and metering cylinder 6b are connected by a pipe 6c, and the salt spray funnel 6a is installed at a higher height than the metering cylinder 6b. When the salt spray test is performed inside the working chamber 1a, some salt spray will fall into the salt spray funnel 6a and then flow into the metering cylinder 6b through the pipe 6c. The metering cylinder 6b is made of transparent glass. The amount of salt spray settled in the metering cylinder 6b per unit time can be observed to reflect whether the test meets the relevant requirements. To facilitate the user to observe the amount of salt spray settled, a mounting box 6d is fixedly installed outside the housing 1. The metering cylinder 6b is vertically fixed in the mounting box 6d. The outer end of the mounting box 6d has a sliding door 6e that can slide up and down. Closing the sliding door 6e can hide the metering cylinder 6b inside the mounting box 6d, preventing ambient air from affecting the amount of settled. Opening the sliding door 6e upward allows direct observation of the amount of settled.

[0052] For example Figure 5 As shown, in this embodiment, five sets of metering feedback components 6 are provided at the lower part of the box body 1. The salt mist funnels 6a of the five sets of metering feedback components 6 are evenly distributed around the interior of the studio 1a. With such a design, it is also possible to judge whether the salt mist is evenly distributed in the studio 1a by observing whether the sedimentation amounts of each metering cylinder 6b are consistent.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A four-integrated marine climate simulation test chamber, comprising a chamber having a working room and a unit room, characterized in that: The working room is provided with a temperature control system, a humidity control system, a lighting system and a salt spray system, wherein the temperature control system is used to switch the temperature in the working room between high temperature, normal temperature and low temperature, the humidity control system is used to change the humidity environment of the working room, the lighting system is used to simulate ultraviolet irradiation, and the salt spray system is used to form a salt spray environment in the working room; The lighting system includes a lamp support plate and a purple light fixed to the back side of the lamp support plate. The lamp support plate is installed obliquely on the top of the studio. The lamp support plate has a hollow cavity in the thickness direction. The hollow cavity makes the lamp support plate a double-layer structure. A triangular cavity is formed between the lamp support plate and the top of the box. A heat exchange fan is installed on the top of the box. A product support is provided at the bottom of the studio, which includes a base and a support plate. The front end of the support plate is rotatably connected to the base, and an adjustment mechanism is provided between the rear end and the base. The adjustment mechanism can change the height of the rear end of the support plate to adjust the inclination angle of the support plate. The inclination angle of the lamp support plate relative to the horizontal plane is 20 to 40 degrees. Several sets of metering feedback components are installed at the lower part of the box, each of which includes a salt spray funnel and a metering cylinder. The salt spray funnel is installed inside the studio, and the metering cylinder is installed outside the box. The salt spray funnel and the metering cylinder are connected through a pipe, and the installation height of the salt spray funnel is higher than the metering cylinder. A mounting box is fixedly installed on the outside of the box, and the metering cylinder is vertically fixed in the mounting box. The outer end of the mounting box has a sliding door that can slide up and down; The temperature control system includes an electric heating device, an evaporator, a cold coil and a hot coil. The electric heating device and the evaporator are fixedly installed in the working room near the unit room, the cold coil is fixed to the upper part of the inner wall of the working room, and the hot coil is fixed to the lower part of the inner wall of the working room. The base is provided with a strip groove extending in the horizontal direction. The adjustment mechanism includes a connecting rod, a support screw fixed to the end of the connecting rod, and a nut configured on the support screw. The end of the connecting rod away from the support screw is hinged to the rear end of the support plate, and the support screw is installed in the strip groove. A forced exhaust pipe is arranged in the unit room, extending from bottom to top, with an exhaust fan provided at its upper end, the lower end of the forced exhaust pipe is connected to the studio, an air inlet is provided on the side of the studio, a damper mechanism is installed on the air inlet, and the damper mechanism is used to close or open the air inlet, the position where the forced exhaust pipe is connected to the studio is arranged at the lower part of the studio, and the air inlet is arranged at the upper part of the studio, the forced exhaust pipe is a three-way pipe, one interface of the three-way pipe is connected to the studio, one interface is installed with the exhaust fan, and the other interface is installed with a pressure relief device; The salt spray system includes multiple groups of nozzles, each group of nozzles is evenly distributed on the top wall or side wall inside the studio, and each set of salt spray funnels of the metering feedback assembly is evenly distributed around the inside of the studio.

2. The four-comprehensive ocean climate simulation test chamber according to claim 1 is characterized in that: The humidity control system comprises a humidifier and an air inlet pipe installed on the humidifier. The humidifier is fixedly assembled in the unit room, and one end of the air inlet pipe away from the humidifier is located in the working room.

3. The four-integrated ocean climate simulation test chamber according to claim 1 is characterized in that: The salt spray system includes a salt spray nozzle and a liquid supply pipe and an air supply pipe connected to the salt spray nozzle. The end of the liquid supply pipe away from the nozzle is connected to a brine tank, and a peristaltic pump is provided on the liquid supply pipe. The end of the air supply pipe away from the nozzle is connected to an air source. The air supply pipe is sequentially provided with a primary pressure regulating valve, a primary pressure regulating gauge, an oil-water filter, a spray pressure regulating valve, a spray pressure gauge, a solenoid valve and a saturation barrel; the salt spray nozzle is fixedly installed inside the studio, and the brine tank and air source are installed outside the box or in the unit room.

4. The four-comprehensive ocean climate simulation test chamber according to claim 1 is characterized in that: A liquid nitrogen tank is provided in the unit room, a liquid nitrogen nozzle is arranged in the working room, and a liquid nitrogen pipeline is connected between the liquid nitrogen nozzle and the liquid nitrogen tank.

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