Self-watering gas constant-humidity device

Abstract

This utility model discloses a self-contained water-gas humidity control device. The device includes: an electric regulating valve, an inlet electric control valve, an outlet electric control valve, a level sensor, a humidity transmitter, a gas-generating solenoid valve, an exhaust solenoid valve, and a control system. The control system is electrically connected to the electric regulating valve, the inlet electric control valve, the outlet electric control valve, the level sensor, the humidity transmitter, the gas-generating solenoid valve, and the exhaust solenoid valve, and is used to achieve automatic adjustment and control of gas humidity. This device can automatically complete operations such as water addition, drainage, and gas flow regulation, significantly reducing manual intervention. Through the linkage of the level sensor, the humidity transmitter, and the control system, it can stably regulate gas humidity within the range of 30%RH to 90%RH, meeting stringent environmental requirements.

Description

Technical Field

[0001] This utility model relates to the field of gas humidity control technology, and more specifically, to a self-supplying gas constant humidity device. Background Technology

[0002] In low-oxygen humidification environments, nitrogen is typically used as a protective gas. However, nitrogen undergoes filtration and dehydration processes during its preparation, resulting in a humidity level typically below 30% RH, which is insufficient for environments with stringent humidity requirements. Existing humidification devices mostly employ manual adjustment or simple mechanical control, leading to problems such as large humidity fluctuations, low adjustment precision, and complex operation. Furthermore, traditional devices lack automatic monitoring and feedback functions, making it difficult to achieve stable humidity control.

[0003] Therefore, there is an urgent need for a self-supplying gas humidity control device that can automatically adjust and precisely control humidity to meet the needs of special environments. Utility Model Content

[0004] This invention provides a self-supplying gas humidity control device to solve the problems of inability to automatically adjust, low adjustment accuracy, and complex operation in the prior art.

[0005] To achieve the above objectives, this utility model provides a self-supplying gas humidity control device, wherein the method includes: an electric regulating valve, located at the air inlet of the humidification chamber, for regulating the gas flow rate entering the humidification chamber; an electric water inlet control valve, located at the water inlet of the humidification chamber, for controlling the automatic replenishment of humidifying liquid; an electric water outlet control valve, located at the water outlet of the humidification chamber, for controlling the automatic discharge of humidifying liquid; a liquid level sensor, located on the humidification chamber, for real-time detection of the liquid level of the humidifying liquid; a humidity transmitter, located at the air outlet of the humidification chamber, for real-time detection of gas humidity; a gas-generating solenoid valve, located at the air outlet of the humidification chamber, for delivering gas to the gas-using system when the gas humidity is qualified; a venting solenoid valve, located at the air outlet of the humidification chamber, for venting gas when the gas humidity is unqualified; and a control system, electrically connected to the electric regulating valve, the electric water inlet control valve, the electric water outlet control valve, the liquid level sensor, the humidity transmitter, the gas-generating solenoid valve, and the venting solenoid valve, for realizing the automatic adjustment and control of gas humidity.

[0006] Optionally, it also includes: a gas dispersion device located inside the humidification chamber and at the air inlet of the humidification chamber, used to reduce the flow rate of the gas entering the humidification chamber and increase the gas-liquid contact area.

[0007] Optionally, the gas dispersion device is provided with multiple gas dispersion holes, all of which are honeycomb-shaped structures.

[0008] Optionally, the inlet electric control valve and the outlet electric control valve are solenoid valves; the control system automatically controls the opening and closing of the inlet electric control valve according to the signal transmitted by the liquid level sensor.

[0009] Optionally, the control system is electrically connected to the humidity transmitter and is used to adjust the opening of the electric regulating valve according to the deviation between the humidity value fed back by the humidity transmitter and the set target humidity.

[0010] Optionally, the gas generating solenoid valve and the venting solenoid valve are interlocked, so that the venting solenoid valve is closed when the gas generating solenoid valve is open, and the gas generating solenoid valve is closed when the venting solenoid valve is open.

[0011] Optionally, the control system includes a human-machine interface for inputting a target humidity value.

[0012] The beneficial effects of this utility model are:

[0013] This invention provides a self-supplying gas humidity control device. Users only need to input the target humidity, and the device can automatically complete operations such as adding water, draining water, and adjusting gas flow, greatly reducing manual intervention. Through the linkage of a liquid level sensor, a humidity transmitter, and a control system, the device can stably adjust the gas humidity within the range of 30%RH to 90%RH, meeting stringent environmental requirements. The honeycomb-shaped gas diffusion device effectively reduces the gas flow rate, increases the contact area between the gas and the liquid, and improves humidification efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a self-supplying gas humidity control device provided in an embodiment of this utility model.

[0015] Symbol explanation:

[0016] Electric regulating valve-1, electric inlet control valve-2, electric outlet control valve-3, liquid level sensor-4, humidity transmitter-5, gas generation solenoid valve-6, venting solenoid valve-7, control system-8, gas diffusion device-9, humidification chamber-10. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of a self-supplying water and gas constant humidity device provided in an embodiment of this utility model; as shown. Figure 1 As shown, the device includes:

[0019] 1. An electric regulating valve 1 is installed at the air inlet of the humidification chamber 10 to regulate the gas flow rate entering the humidification chamber 10;

[0020] The humidification chamber 10 is the core area of ​​the entire humidity regulation process. It is used to hold a certain amount of humidifying liquid (usually pure water or deionized water) and to ensure sufficient contact and humidification between the incoming gas and the liquid. The outer shell of the humidification chamber 10 is made of 304 or 316L stainless steel, and the inner surface is polished to reduce scale and impurity deposition and facilitate cleaning. The humidification chamber 10 has an air inlet at the bottom of one side and a water inlet at the top, and a water outlet at the bottom of the other side and an air outlet at the top. The volume of the humidification chamber 10 can be designed from 5 to 50 L depending on the air demand, preferably 20 L.

[0021] An electric regulating valve 1 is located at the air inlet of the humidification chamber 10 and connected to an external air source pipeline. This electric regulating valve 1 allows for valve opening adjustment from 0-100%, thus controlling the gas flow rate. By adjusting the valve core position, the gas flow rate entering the humidification chamber 10 is controlled, thereby affecting the contact time and efficiency between the gas and the humidifying liquid within the humidification chamber 10, and thus regulating the humidity of the outlet gas. The electric regulating valve 1 can be an electric proportional ball valve or an electric butterfly valve, and the valve body is preferably made of stainless steel to withstand long-term erosion from low-oxygen nitrogen or other inert gases.

[0022] 2. The electric water inlet control valve 2 is located at the water inlet of the humidification chamber 10 and is used to control the automatic replenishment of the humidification liquid;

[0023] The water inlet electric control valve 2 is located at the water inlet of the humidification chamber 10 and is connected to the water inlet pipeline. This valve is preferably a solenoid valve structure. When the humidification liquid level in the humidification chamber 10 is lower than the preset lower limit, the control system 8 sends a signal to open the water inlet electric control valve 2, so that the humidification liquid is automatically replenished into the humidification chamber 10; when the liquid level reaches the preset upper limit, the valve closes to prevent the humidification liquid from overflowing.

[0024] 3. The water outlet electric control valve 3 is located at the water outlet of the humidification chamber 10 and is used to control the automatic discharge of the humidification liquid;

[0025] An electric control valve 3 is located at the outlet of the humidification chamber 10 and connected to the drain pipe. This valve is preferably a solenoid valve, used to automatically discharge the humidification liquid from the humidification chamber 10 when the humidification liquid needs to be replaced or equipment maintenance is required. During drainage, the control system 8 closes the electric regulating valve 1 to prevent gas from continuing to enter the humidification chamber 10, ensuring a safe and thorough drainage process.

[0026] 4. Liquid level sensor 4, installed on the humidification chamber 10, is used to detect the liquid level height of the humidifying liquid in real time;

[0027] A liquid level sensor 4 is located at the upper part of the humidification chamber 10 to detect the liquid level height of the humidifying liquid in real time. The liquid level sensor 4 can be a float-type, hydrostatic, or capacitive sensor, capable of outputting an electrical signal corresponding to the liquid level height to the control system 8, thereby achieving closed-loop control of the inlet electric control valve 2. To ensure stable operation, the liquid level sensor 4 can be set with dual thresholds for high and low liquid levels. When the liquid level reaches the upper limit, water replenishment stops; when the liquid level drops to the lower limit, water replenishment starts. That is, the control system 8 sends a command to the inlet electric control valve 2 to complete the water replenishment operation.

[0028] 5. Humidity transmitter 5, located at the air outlet of humidification chamber 10, is used to detect gas humidity in real time;

[0029] A humidity transmitter 5 is installed at the outlet of the humidification chamber 10 to detect the humidity value of the humidified gas in real time. The humidity transmitter 5 feeds back the humidity signal to the control system 8, which compares it with the preset target humidity value and adjusts the opening of the electric regulating valve 1 accordingly to ensure that the humidity of the output gas is within the set range.

[0030] 6. Gas generating solenoid valve 6, located at the gas outlet of humidification chamber 10, is used to deliver gas to the gas consumption system when the gas humidity is qualified;

[0031] The gas-generating solenoid valve 6 is located at the gas outlet of the humidification chamber 10. This valve opens when the humidity transmitter 5 detects that the gas humidity is within acceptable limits, delivering the qualified gas to the gas consumption system or gas storage device; it closes when the humidity is not within acceptable limits to prevent unqualified gas from entering the gas consumption system.

[0032] 7. The exhaust solenoid valve 7 is located at the air outlet of the humidification chamber 10 and is used to exhaust the gas when the gas humidity is not up to standard.

[0033] The venting solenoid valve 7 is located at the air outlet of the humidification chamber 10. When the humidity transmitter 5 detects that the gas humidity is not up to standard, the control system 8 will close the gas generating solenoid valve 6 and open the venting solenoid valve 7 to discharge the gas with unqualified humidity to a safe area or recovery device, thereby preventing the unqualified gas from affecting downstream equipment or processes.

[0034] In one optional implementation, the gas-generating solenoid valve 6 and the venting solenoid valve 7 are interlocked, such that when the gas-generating solenoid valve 6 is open, the venting solenoid valve 7 is closed, and when the venting solenoid valve 7 is open, the gas-generating solenoid valve 6 is closed.

[0035] 8. The control system 8 is electrically connected to the electric regulating valve 1, the inlet electric control valve 2, the outlet electric control valve 3, the liquid level sensor 4, the humidity transmitter 5, the gas generating solenoid valve 6, and the venting solenoid valve 7, and is used to realize the automatic adjustment and control of gas humidity.

[0036] The control system 8 is electrically connected to the electric regulating valve 1, the inlet electric control valve 2, the outlet electric control valve 3, the level sensor 4, the humidity transmitter 5, the gas generation solenoid valve 6, and the vent solenoid valve 7. This system can be a PLC controller, possessing functions such as data acquisition, logic judgment, closed-loop control, and valve actuation. Based on the real-time humidity value fed back by the humidity transmitter 5 and the liquid level information fed back by the level sensor 4, the control system 8 can automatically adjust the opening degree of the electric regulating valve 1 and the opening and closing of the inlet electric control valve 2, controlling the gas flow and water inlet process, and achieving interlocking switching between the gas generation and vent valves, thereby ensuring that the gas humidity remains stable within a preset range.

[0037] In an optional embodiment, the self-supplying gas humidity control device further includes a gas dispersion device 9, located inside the humidification chamber 10 and disposed at the air inlet of the humidification chamber 10, for reducing the flow rate of the gas entering the humidification chamber 10 and increasing the gas-liquid contact area.

[0038] The gas dispersion device 9 is provided with multiple gas dispersion holes, all of which have a honeycomb structure.

[0039] Specifically, the surface of the gas diffusion device 9 is uniformly distributed with multiple gas diffusion holes. All the gas diffusion holes adopt a honeycomb structure, with the honeycomb holes arranged tightly and connected along the gas flow direction. The gas diffusion device 9 decomposes the high-speed concentrated airflow sent by the external gas supply system into multiple low-speed uniform small airflows through multiple gas diffusion holes, thereby significantly reducing the gas flow velocity, reducing the impact of the airflow on the humidifying liquid surface, increasing the gas-liquid contact area, and improving the gas moisture absorption efficiency.

[0040] In an optional implementation, the control system 8 includes a human-machine interface for inputting a target humidity value.

[0041] Specifically, the operator can input the desired target humidity value through a human-machine interface, either by numeric keypad or by sliding adjustment. The input target humidity value is transmitted to the processing unit of the control system 8 via the human-machine interface. The processing unit compares the target value with the humidity value collected in real time by the humidity transmitter 5, generates a humidity deviation signal, and adjusts the opening of the electric regulating valve 1 and controls the switching between the gas generating solenoid valve 6 and the venting solenoid valve 7 by executing the corresponding control algorithm, thereby stabilizing the outlet gas humidity within the set value range.

[0042] The beneficial effects of this utility model are:

[0043] This invention provides a self-supplying gas humidity control device. Users only need to input the target humidity, and the device can automatically complete operations such as adding water, draining water, and adjusting gas flow, greatly reducing manual intervention. Through the linkage of the liquid level sensor 4, humidity transmitter 5, and control system 8, the gas humidity can be stably adjusted within the range of 30%RH to 90%RH to meet strict environmental requirements. The honeycomb-shaped gas diffusion device 9 effectively reduces the gas flow rate, increases the contact area between gas and liquid, and improves humidification efficiency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-supplying water-gas constant humidity device, characterized in that, include: An electric regulating valve is installed at the air inlet of the humidification chamber to regulate the gas flow rate entering the humidification chamber; An electric water inlet control valve is installed at the water inlet of the humidification chamber to control the automatic replenishment of humidification liquid. An electric control valve for water outlet is located at the water outlet of the humidification chamber and is used to control the automatic discharge of humidification liquid. A liquid level sensor, installed on the humidification chamber, is used to detect the liquid level height of the humidifying liquid in real time; A humidity transmitter, located at the air outlet of the humidification chamber, is used to detect the humidity of the gas in real time. The gas-generating solenoid valve, located at the gas outlet of the humidification chamber, is used to deliver gas to the gas-using system when the gas humidity is within acceptable limits. The venting solenoid valve, located at the air outlet of the humidification chamber, is used to vent gas when the gas humidity is not up to standard. The control system is electrically connected to the electric regulating valve, the inlet electric control valve, the outlet electric control valve, the level sensor, the humidity transmitter, the gas generating solenoid valve, and the venting solenoid valve, and is used to realize the automatic adjustment and control of gas humidity.

2. The apparatus according to claim 1, characterized in that, Also includes: A gas dispersion device is located inside the humidification chamber and at the air inlet of the humidification chamber. It is used to reduce the flow rate of the gas entering the humidification chamber and increase the gas-liquid contact area.

3. The apparatus according to claim 2, characterized in that: The gas dispersion device is provided with multiple gas dispersion holes, all of which have a honeycomb structure.

4. The apparatus according to claim 1, characterized in that: The inlet and outlet electric control valves are solenoid valves; the control system automatically controls the opening and closing of the inlet electric control valve based on the signal transmitted by the level sensor.

5. The apparatus according to claim 1, characterized in that: The control system is electrically connected to the humidity transmitter and is used to adjust the opening of the electric regulating valve according to the deviation between the humidity value fed back by the humidity transmitter and the set target humidity.

6. The apparatus according to claim 1, characterized in that: The gas generating solenoid valve and the venting solenoid valve are interlocked. When the gas generating solenoid valve is open, the venting solenoid valve is closed, and when the venting solenoid valve is open, the gas generating solenoid valve is closed.

7. The apparatus according to claim 5, characterized in that: The control system includes a human-machine interface for inputting the target humidity value.

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