Bubble humidifying system for environmental test chamber

Abstract

The utility model discloses a bubble humidifying system for an environmental test chamber, which comprises a test chamber body with a working chamber, the working chamber is connected with a humidifier through a first pipeline, the humidifier is internally provided with a water tank and a heating component positioned in the water tank, the humidifier is connected with a second pipeline and a water pipe, and the water pipe is connected with a water inlet and a water outlet. The far end of the second pipeline is connected with a compressed air source which is used for introducing compressed air into the water tank; a water storage tank is connected to the far end of the water pipe, and a water pump is arranged on the water pipe and used for pumping water in the water storage tank into the water tank. The humidifying device has the advantages that compressed air enters from the bottom of the water tank and generates bubbles, the rising process of the bubbles is matched with low-temperature heating of the heating assembly to water, when the bubbles emerge from the water surface, the air in the bubbles carries a little water, then the humidifying effect is achieved, steam can be generated at the low temperature, and the humidifying effect is achieved. And the moisture content is low, so that the frosting phenomenon of equipment in the working chamber can be obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental humidification, in particular to a bubble humidification system for an environmental test box. Background Art

[0002] Environmental test chamber is a kind of experimental equipment that can simulate various environmental factors such as temperature, pressure, humidity, etc. It can be used to test the performance of any product under specific environmental factors, such as products in the fields of automobile, electronics and electrical engineering, aerospace, instrumentation and automation, etc.

[0003] Among them, the humidity environment is generally simulated by an external humidification system. Traditional humidification systems generally use thermal evaporation humidifiers for humidification. The humidifier evaporates water through electric heating to form water vapor, which is then transmitted to the working room of the environmental test chamber through pipes. However, when simulating some extreme environments, for example, when simulating low-temperature environments of zero degrees Celsius or below, the temperature has reached the freezing point, and traditional thermal evaporation humidifiers often need to be heated to nearly 100°C to produce water vapor. The generated humidity is large and the water content is high. It is easy to cause extremely serious frosting inside the test chamber. The refrigeration copper tubes, evaporators and other components in the studio are heavily frosted, which will affect the normal operation of the experimental equipment and reduce its lifespan. Utility Model Content

[0004] In view of this, the utility model provides a bubble humidification system for an environmental test box, which can reduce the moisture content of steam to achieve the purpose of improving the frosting phenomenon.

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

[0006] A bubble humidification system for an environmental test chamber, comprising a test chamber body having a working chamber, characterized in that: the working chamber is connected to a humidifier via a first pipe, the humidifier is provided with a built-in water tank and a heating component located in the water tank, the humidifier is connected to a second pipe and a water pipe, the far end of the second pipe is connected to a compressed air source for introducing compressed air into the water tank; the far end of the water pipe is connected to a water storage tank, a water pump is provided on the water pipe for pumping water in the water storage tank into the water tank.

[0007] By adopting the above structure, compressed air is introduced into the bottom of the humidifier, causing bubbles to be generated at the bottom of the humidifier. The bubbles rise and cooperate with the heating component to heat the water inside the water tank. When the bubbles rise to the top of the humidifier, the air at the top of the humidifier will carry moisture, and then enter the environmental test chamber through the pipe, thereby achieving the effect of simulating the humidity environment.

[0008] Preferably, the water tank of the humidifier is equipped with a water level controller, which is used to detect the water level of the water tank. With the above structure, the water level inside the water tank can be detected, and the water tank can be replenished in time through the automatic control system.

[0009] As a preferred embodiment, the water level controller is sealed and connected to the water tank inside the humidifier through a third pipe, and one end of the water pipe away from the water tank is connected to the water level controller. With the above structure, the water level controller can be connected externally.

[0010] As a preferred embodiment, the working chamber is connected to a vacuum pump via a fourth pipeline. The above structure ensures that the simulated environment of the environmental test box is lower than the atmospheric pressure.

[0011] Preferably, a proportional valve is arranged on the fourth pipeline. With the above structure, the vacuum pumping speed can be adjusted.

[0012] Preferably, the water level controller has a sealed water storage chamber, and an air pressure balance pipe is connected between the water storage chamber and the working room. With the above structure, the air pressure between the water level controller and the working room can be balanced to ensure that the air pressure inside the humidifier is not affected.

[0013] Preferably, the first pipeline, the second pipeline and the air pressure balance pipe are all provided with electromagnetic valves. The above structure can ensure regular intermittent humidification and maintain the air pressure balance of the system.

[0014] Preferably, the humidifier is provided with a temperature sensor, and the temperature sensor is used to measure the temperature of the water inside the water tank. With the above structure, the operating state of the heating component can be detected in real time to ensure the stability of the entire system.

[0015] Preferably, the heating component is an electric heating wire, and its heating temperature is limited to between 20 and 50° C. With the above structure, the moisture content of the generated moisture is low at a lower heating temperature.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By adopting the bubble humidification system for the environmental test chamber provided by the utility model, compressed air is introduced into the water tank at the bottom of the humidifier through the second pipe, and the compressed air forms bubbles in the water tank, and the bubbles emerge upward from the water. In this process, the water is heated at a relatively low temperature by the heating component, so that the bubbles can carry a small amount of moisture when they emerge from the water surface, thereby providing a humid environment for the studio. Compared with traditional high-temperature heating evaporation for studio humidification, the utility model can generate steam at a lower temperature, and the moisture content of the generated steam is relatively low, which can significantly reduce the frosting phenomenon inside the studio of the environmental test chamber, thereby ensuring the stability and reliability of the operation of the environmental test chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the bubble humidification system. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with embodiments and drawings.

[0020] like Figure 1 As shown, a bubble humidification system for an environmental test chamber mainly includes a test chamber body having a studio 1, the studio 1 is connected to a humidifier 2 through a first pipe a, the humidifier 2 is used to generate moisture and provide it to the studio 1 through the first pipe a, so that the studio 1 can achieve the effect of simulating a humidity environment. A water tank 2a is installed inside the humidifier 2, and a heating component 2b is installed inside the water tank 2a. The heating component 2b is used to heat the water inside the water tank 2a, so that the water molecules inside the humidifier 2 are more active.

[0021] The humidifier 2 is connected to a compressed air source 3 through a second pipe b. The compressed air source 3 is used to pass compressed air into the bottom of the water tank 2a inside the humidifier 2. When the compressed air enters the bottom of the water tank 2a, bubbles will be generated at the bottom of the water tank 2a. The bubbles rise and then cooperate with the heating component 2b to heat the water inside the water tank 2a. When the bubbles emerge from the water surface, the air inside the bubbles will carry some moisture. The air with moisture then enters the studio 1 through the first pipe a, thereby achieving the effect of humidifying the studio 1.

[0022] Such a design can ensure that steam can be generated at a relatively low heating temperature, and compared with the traditional high-temperature evaporation for humidification, the steam generated by the utility model has a low moisture content, which can significantly reduce the frosting phenomenon inside the environmental test chamber studio 1. Therefore, in this embodiment, the heating temperature of the heating component 2b is limited to between 20 and 50°C. The experimental data shows that when the heating temperature is 38.3°C, the actual application effect is the best.

[0023] The humidifier 2 is also connected to a water tank 4 through a water pipe c. The water tank 4 provides a water source for the humidifier 2. A water pump 5 is installed on the water pipe c. The water pump 5 can pump the water inside the water tank 4 into the water tank 2a inside the humidifier 2. This can ensure that the entire bubble humidification system can work continuously without having to wait until the water tank 2a in the humidifier 2 is out of water and then shut down the system for water replenishment. A water level controller 6 is arranged on the water tank 2a. In the present embodiment, the water level controller 6 is connected to the humidifier 2 through the third pipe d, and the water level controller 6 has a sealed water storage chamber inside. The end of the water pipe c away from the water storage tank 4 is connected to the water level controller 6. The water level controller 6 is used to detect the water level inside the water tank 2a, and transmit the detection signal to the automatic control system to control the water pump 5 to replenish the water tank 2a. When the water level inside the water tank 2a is lower than the lowest water level detection point of the water level controller 6, the automatic control system will control the water pump 5 to replenish the water tank 2a, until the water level inside the water tank 2a is higher than the highest water level detection point of the water level controller 6, the automatic control system will control the water pump 5 to stop replenishing water, and when the water level inside the water tank 2a is lower than the lowest water level detection point of the water level controller 6 again, the automatic control system will repeat the above steps to replenish the water tank 2a. A temperature sensor 2c is also installed on the humidifier 2. The temperature sensor 2c is used to detect the temperature of the water inside the humidifier 2 and provide real-time feedback. The temperature sensor 6 can also transmit the detection signal to the automatic control system, and the control system controls whether the heating component 2b is running, thereby ensuring the stable operation of the bubble humidification system.

[0024] The studio 1 is also connected to a vacuum pump 7 through the fourth pipe e. The vacuum pump 7 draws negative pressure to provide a low-pressure simulation environment for the test box. In this embodiment, a proportional valve 8 is installed on the fourth pipe e, and the proportional valve 8 can control the rate of vacuuming inside the studio 1. In addition, an air pressure balance pipe f is connected between the studio 1 and the water level controller 6. The air pressure balance pipe f can ensure the air pressure balance between the studio 1 and the water level controller 6, thereby ensuring the stability of the air pressure inside the humidifier 2. In this embodiment, solenoid valves 9 are installed on the first pipe a, the second pipe b and the air pressure balance pipe f, and the solenoid valve 9 controls the operation switch of the entire system.

[0025] 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 a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A bubble humidification system for an environmental test chamber, comprising a chamber body having a working chamber (1), Features: The working room (1) is connected to a humidifier (2) via a first pipe (a); the humidifier (2) has a built-in water tank (2a) and a heating component (2b) located in the water tank (2a); the humidifier (2) is connected to a second pipe (b) and a water pipe (c); the second pipe (b) is connected to a compressed air source (3) at the far end thereof for supplying compressed air to the water tank (2a); the water pipe (c) is connected to a water storage tank (4) at the far end thereof; a water pump (5) is provided on the water pipe (c) for pumping water in the water storage tank (4) into the water tank (2a).

2. The air bubble humidification system for an environmental test chamber according to claim 1, Features: The water tank (2a) of the humidifier (2) is provided with a water level controller (6), and the water level controller (6) is used to detect the water level height of the water tank (2a).

3. The air bubble humidification system for an environmental test chamber according to claim 2, Features: The water level controller (6) is in sealed communication with the water tank (2a) inside the humidifier (2) via a third pipe (d), and one end of the water pipe (c) away from the water storage tank (4) is connected to the water level controller (6).

4. The air bubble humidification system for an environmental test chamber according to claim 1, Features: The working chamber (1) is connected to a vacuum pump (7) via a fourth pipeline (e).

5. The air bubble humidification system for an environmental test chamber according to claim 4, Features: The fourth pipeline (e) is provided with a proportional valve (8).

6. The air bubble humidification system for an environmental test chamber according to claim 2, Features: The water level controller (6) has a sealed water storage chamber, and an air pressure balance pipe (f) is connected between the water storage chamber and the working chamber (1).

7. The air bubble humidification system for an environmental test chamber according to claim 6, Features: The first pipeline (a), the second pipeline (b) and the air pressure balance pipe (f) are all provided with solenoid valves (9).

8. The air bubble humidification system for an environmental test chamber according to claim 1, Features: The humidifier (2) is provided with a temperature sensor (2c), and the temperature sensor (2c) is used to measure the temperature of water inside the water tank (2a).

9. The air bubble humidification system for an environmental test chamber according to claim 1, Features: The heating component (2b) is an electric heating wire, and its heating temperature is limited to between 20 and 50°C.

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