concrete curing box

Curing box | Concrete curing box | Standard curing box | Curing box wholesale | Cement test block curing box
Curing box, concrete curing box, standard curing box, curing box wholesale, test block curing box, cement curing box
Type / type concrete standard curing box is designed and produced according to the national construction industry's standard curing requirements for concrete specimens. It is suitable for standard maintenance work on the strength and setting time of cement and concrete samples at various construction sites and scientific research and quality inspection departments.
Main technical parameters
, humidity control temperature and above
, control temperature ℃℃
, power supply voltage
, heating power
, cooling power
, Humidification power
, Humidification amount ml/h
, Humidifier volume
, Space inside the box
Model can be placed in concrete test block group
Model can be placed Concrete test block group
The type can hold the concrete test block group
3. Structure and working principle
Structure
The box adopts two layers, inner and outer, consisting of an outer box and an inner box , the outer box is made of high-quality cold-rolled steel plates, the inner box is made of stainless steel plates, and the shelves are made of stainless steel profiles with good corrosion resistance. The water tank under the inner box is used for heating and auxiliary humidification. The humidification system is mainly based on an ultrasonic humidifier, supplemented by water heating and evaporation. The automatic control system consists of a temperature controller and a humidity control instrument for cooling according to the given temperature and humidity. , heating and humidification are automatically switched, and the temperature and humidity in the box are digitally displayed by the instrument.
, working principle
Temperature control: When the temperature in the box is lower than the lower limit set value of the temperature controller, the temperature controller outputs a heating signal to instruct the electric heating element to start working. On the contrary, when the temperature is higher than the upper limit set value, The temperature controller instructs the refrigeration system to work. When the temperature inside the box reaches the required requirements, it will automatically stop heating or cooling.
Humidity control uses an ultrasonic humidifier to ensure that the humidity in the box reaches a certain level. The temperature controller automatically controls the humidification device. When the humidity is < , the temperature controller instructs the humidifier to work. After reaching the return difference value, Automatically stop working, the return difference value should be adjusted to ℃, not too large.
4. How to use
Put the box in place, adjust the level, connect the ground wire, and wait for an hour, add clean water to the water tank until the water level exceeds the heating pipe.
Open the door and take out the humidifier. Open the side door, put the humidifier on the upper tray, remove the transparent water tank, turn it around, unscrew the water tank cover counterclockwise, fill it with clean water (it is best to add distilled water, screw the water tank cover after adding water, and put it back into the humidifier mother body, then press the humidifier nozzle, and finally insert the humidifier plug into the socket in the side door. Turn on the power switch and adjust the spray knob to the maximum position. The temperature and humidity of the curing box temperature controller have been adjusted at the factory. < br/>. Turn on the power and start the instrument to work. When the temperature and humidity in the box reaches a given value, put the test piece into it. Heating and cooling are strictly prohibited at the same time.
5. Main matters
The curing box should be used in a ventilated, dry, flat, non-corrosive environment. In daily use, pay attention to maintaining the water level of the water tank and humidifier to ensure normal use.
After the curing box is in place, it needs to be kept still for an hour. It can be powered on and started, but the voltage is not allowed to be lower or higher. Unstable voltage will burn out the controller, so a regulated power supply must be used.
The compressor cannot be started frequently, and the refrigeration work must be started after a power outage or stop. Start the second time to avoid damaging the compressor.
, The equipment is not allowed to be turned upside down to prevent the compressor lubricating oil and refrigerant from mixing and damaging the refrigeration unit.
, No inclination is allowed during transportation.
, Work Conduct an insulation test beforehand to avoid the danger of leakage.
. The water added into the water tank is preferably ℃
6. Common faults and troubleshooting methods
. The instrument display does not work
The power supply is not working Connect it, check the fuse and plug.
The power switch is broken, replace it with a new one.
The instrument output wire falls off and the plug is not tightly plugged in.
The contactor is burned out, replace the contactor with the same model .
, No cooling
Is the given value of the temperature controller correct? The temperature controller does not output a signal to set the given value or check the fuse of the temperature controller.
The output signal contactor of the temperature controller If it does not work, replace the contactor.
Refrigerant leakage.
If the compressor does not work, connect the compressor to the power supply. If it still does not work, it means that the thermal relay or the compressor is burned out, and the thermal relay must be replaced. Or compressor.
, The whole machine does not heat
The temperature controller and contactor are burned out and need to be replaced.
The heating tube is dehydrated and burned out, replace the original electric heating element with the same power.
, The humidity in the box is lower than the given value and there is no humidification
Check whether the given value is correct, and then turn the switch on the temperature controller to off to check whether it sprays. If it does not spray, it means that the humidifier is faulty.< br/> When the digital display value is lower than the given value, check whether the humidity controller light turns red. If it does not change, adjust the hysteresis value appropriately. If it turns red but does not humidify, check the humidifier.
If the humidifier is not working properly, first check whether there is scale or impurities on the transducer. The transducer must be kept clean, and then whether the water tank is cut off.
If the temperature controller cannot output a signal, check the instrument. If the temperature is The display is not abnormal. Use a dry cloth to wipe off the water traces on the sensor probe, and the display will be normal.
If the magnetic tape is not tight, use heating to widen the magnetic tape (use a hair dryer)< br/> If the tank leaks, use epoxy resin or plastic welding.
7. Humidifier maintenance
When the humidifier is not in use, please turn off the power switch and unplug the plug.
, The humidifier must be cleaned when the following situations occur
,) An unpleasant smell occurs.
,) The fog is normal but the fog cannot be sprayed out.
,) There is little or no fog.
, How to clean a humidifier
,) When cleaning, first remove the screw cap of the humidifier. Never immerse the humidifier in water.
,) Do not use detergent, kerosene, alcohol or chemical polishes for glass furniture, and do not use hot water exceeding ℃.
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