Electric humidifier

1. Working principle of electric humidifier
   Electric humidifier is based on the principle of resistance heating. The electric heating tube is immersed in water. After the electric heating tube is powered on, according to Joule's law, the electric heating tube generates heat, which turns water into steam. When in use, connect the power, water source, and drainage pipe, and the humidifier will start to receive water. When the water level in the box reaches the working water level, the electric heating tube will start heating up; When the water level is lower than the working water level, the control circuit can be cut off, thereby stopping the heating of the electric heating tube; When the water level is too high, it overflows from the overflow outlet. The steam generated during the work process is discharged through the exhaust hole. Electric humidification is achieved by controlling the heating power of the heating element to regulate the amount of steam output. As shown in the figure below:

2. Characteristics of Electric Humidifiers The product has unique design, stable performance, safety and reliability, and can achieve higher humidification control accuracy. Made of stainless steel, it is beautiful and lightweight, and can achieve switch control, proportional control, and PID control. Different evaporation boxes and electrical control boxes can be selected according to needs to form an electric humidifier, which is easy and flexible to install. ■ Safe circuit design, three-level circuit protection: short circuit, overheating, and leakage protection functions eliminate users' concerns. Anti dry burning design, when the electric heating element is exposed to the water surface, the anti dry burning device starts, cuts off the power, and protects the electric heating element from being burned out. The keyboard interface displays the current operating status of the machine, making it easy to set and adjust humidity. Equipped with RS485 interface, it can achieve cluster control for user convenience (optional). The electric heating tube adopts a low-power density design and a special scale inhibition treatment method, greatly extending the service life of the electric heating tube. It is made of stainless steel 316 or above material, which is corrosion-resistant, washable, and has a long service life. The maintenance workload is small, and new technological achievements are used to solve the scaling problem. The scale on the surface of the water tank and electric heating tube keeps falling off due to repeated thermal expansion and contraction.

   
   

3. SMDLSystem composition of electric humidifier

4. Humidifier controller
   The microprocessor installed inside the device controls all the working processes of the humidifier and can be set through a manual controller. The upper and lower limits of humidity required by the environment can be freely set through the operation of the control panel. It can display the current operating status of the device as well as the current and cumulative humidification levels.
   2Water level control
   Adopting a highly reliable connected water level detector to monitor water level changes, it is not affected by fluctuations in the liquid level of the electric heating box, and the water level status can be directly observed.
   3Automatic drainage
   The drainage cycle and duration can be freely set. When the humidifier stops working, the drainage device will automatically drain the water inside the equipment within the set time to prevent water quality deterioration and bacterial growth.

5. Product Performance
   ——Power supply voltage: 220V/380V - △ (Y) -50Hz
   ——Working pressure: less than 0.6Mpa (inlet)
   ——Insulation resistance: greater than 5M
   ——Insulation strength: 2KV

Product features and working principle
1. Reasonable structure: Unique design, stable performance, safe and reliable, made of stainless steel material, beautiful and lightweight, easy to install and use.
2. High thermal efficiency: The heating tubes are arranged reasonably and generate heat evenly; It can quickly heat and generate steam to meet the needs.
3. Safe and reliable: Equipped with a stainless steel low-level protection device, it can cut off the control circuit when the water level inside the box is too low, avoiding accidents caused by dry burning of the heating tube.
4. Excellent performance: High quality palace heating tubes ensure that the electrical performance of the product far exceeds national standards, ensuring excellent product performance and long service life.
5. Working principle: When in use, connect the power, water source, and drainage pipe, and the humidifier will start to receive water. When the water level in the box reaches the working water level, the electric heating tube will start heating up; When the water level is lower than the working water level, the control circuit can be cut off to stop the heating of the electric heating tube; When the water level is too high, it overflows from the overflow nozzle. The steam generated during the process is discharged through the exhaust hole. Steam outlets are divided into two types: open type and connected type.
Components of an electric humidifier

1. The electric humidifier consists of a stainless steel main water tank, a stainless steel float ball control box, an inlet component, and an electrical control box. The main water tank contains N sets of long-life electric heating tubes, and the float ball box has a specially designed float ball valve and a protective travel switch to prevent dry burning without water. The inlet component includes water pipes and inlet joints, and the electrical control box has air switches, contactors, etc. (Note: K-type can accept ON/OFF signals or building self-control signal control parts, with switch quantity adjustment.). ）

2. The electric humidifier consists of a stainless steel main water tank, a stainless steel float ball control box, an inlet component, and an electrical control box. The main water tank contains N sets of long-life electric heating tubes, and the float ball box has a specially designed float ball valve and a protective travel switch to prevent dry burning without water. The inlet component includes water pipes and inlet joints. (Note: The L-shaped proportional adjustment control part of the electric humidifier includes an air switch, regulator, indicator light, relay, terminal block, power output device, etc. The voltage regulation module is designed with a single-chip microcomputer for protection and is powered by a DC power supply. The module is equipped with negative voltage feedback and has overcurrent, overheating, and short circuit functions.). Linear proportional power output, control signal input: 0-10V or 4-20mA, thyristor linear regulation control, 0-100% linear power output.

1. System parameter table

External dimensions of electric humidifier A-type ON/OFF control electrical control box

4. Dimensions of the B-type proportional control box for electric humidifiers

5 Installation method of electric humidifier

Connection of steam diffusion device
SJDR electric humidifier with three types of steam diffusion devices to choose from
1. Steam jet pipe (matched with air conditioning or air duct)

2. Steam rapid diffuser (air conditioning or duct matching)
3. Direct blowing fan

High temperature rubber hose: used for connecting the humidifier host to the air duct

Installation position

AHU(Combination air conditioning unit), air supply duct

pour:
1. The distance between the spray bar and the obstacle should be kept at least 2000mm, and the longer the distance, the better.
2. The distance between the humidifier spray bar and the humidity control sensing element should be maintained at least 2 meters
3. The spray bar should be installed as much as possible after the heater
4. When using an electric humidifier for direct indoor humidification, a specially designed direct blowing fan should be used to evenly spread the steam indoors.
5. To ensure that steam can diffuse and be effectively absorbed within a short distance, steam rapid diffusers should be used as much as possible to avoid condensation of steam in filters, fans, and ducts due to insufficient absorption distance.

Usage conditions of electric humidifier
Tap water, softened water, and purified water can be used. There are no special requirements for water quality, and it is recommended to use softened water or purified water.
1. 40 ° C>ambient temperature>4 ° C, humidity ≤ 80% RH.
2. Water and electricity are in place, and the casing is well grounded.
3. If using tap water for continuous humidification, it is recommended to regularly clean the water tank and electric heating tube. (Half a year is one period)
4. When used in conjunction with air conditioning, the circuit should be linked and controlled to avoid accidental humidification.
5. When installing a humidifier in the positive pressure section of an air conditioner, it is recommended to consult with technical personnel from Shengjie Technology Co., Ltd.
6. If the humidifier is not used for a long time, press the drain button to drain the water from the water tank completely.
7. The humidifier casing must be well grounded!