Hengaode analyzes the application operation of constant temperature water tank structure
The structure of the constant temperature water tank is a metal rectangle. The shell is carefully made of cold-rolled steel plate. The stainless steel liner, digital display temperature controller, power supply, and water pump are all installed in the control box. The constant temperature tank has a core component-the microcomputer intelligent control system, used to Control the temperature change, and finally achieve a constant temperature effect.
structure
Important parts of the sink: controller, working room, tank body, heating pipe,
The naming of constant temperature water tanks such as circulation pumps is not unique. According to their working principle, constant temperature water tanks can be called constant temperature water bath pots, electric constant temperature water baths, constant temperature water tanks, etc. XO, SL series, etc. are more common in the market, and there are many types of constant temperature sinks. The constant temperature water tank is generally a high-precision constant temperature source with heating, and also has the function of a small chiller.
application
The use range of the constant temperature water tank is relatively wide, and it is suitable for direct heating and cooling with precise constant temperature in the sciences of biology, chemistry, physics, plants, chemical industry, etc., and auxiliary heating and cooling. The structure of the constant temperature water tank is a metal rectangle. The shell is carefully made of cold-rolled steel plate. The stainless steel liner, digital display temperature controller, power supply, and water pump are all installed in the control box. The constant temperature tank has a core component-the microcomputer intelligent control system, used to Control the temperature change, and finally achieve a constant temperature operation
Precautions
1. Familiar with the instrument and the control panel, use a megohmmeter to measure whether the power supply, plug and ground are poorly insulated or short-circuited.
2. Set the experiment temperature according to the temperature setting method. After the temperature is constant, the experiment can be started.
3. This constant temperature heating solution is best to use distilled water. It is forbidden to use river water and hard water. If you use tap water, you should clean the thermostat once after each use to prevent the accumulation of scale on the heater. Affect the constant temperature sensitivity.
Test procedure
1. Use 220V AC power supply. The power socket should use a three-hole safety socket. It must be properly grounded, and the ground wire should not be connected to the gas pipe.
2. Before energizing, the water should be injected into the pot above the partition, the heating tank should not be exposed to the water surface.
3. Rotate the adjusting knob, and adjust to the use value through the temperature control meter display.
4. If you need to use 100 ℃ boiling water for distillation, add too much water to avoid overflow when boiling.
Add liquid medium into the tank, and the liquid level should not be lower than 30mm on the worktable.
Selection of liquid medium:
A: When the temperature is adjusted to 80 ℃, the liquid medium is generally pure water.
B: When the working temperature is 80--90 ℃, the liquid medium generally uses 15% glycerin aqueous solution.
C: When the working temperature is above 95 ℃, the liquid medium generally uses oil, and the open cup flash point of the selected oil should be higher than the working temperature by above 15 ℃.
3. Connection of circulation pump
A: For the connection of the internal circulation pump, connect the outlet pipe to the inlet pipe with a hose.
B: The external circulation pump is connected to the external circulation. The liquid outlet pipe is connected to the inlet of the outer tank container with a hose, and the liquid inlet pipe is connected to the outlet of the outer tank container.
4. When using a super constant temperature bath, if the working temperature is> 100 ℃, it is recommended that the external pipe of the circulation pump should be a metal pipe or a silicone pipe.
5. Plug in the power and turn on the "power" switch
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