The hot summer is approaching, and the fear of being dominated by one heat wave after another is unconsciously surging in my mind. I can't help feeling that the air conditioner gave me my second life. Everyone wrote a poem for the air conditioner: ancient road, west wind, thin horse, air conditionerWiFiWatermelon. There are pictures, there are pictures, enjoying air conditioning in the hot summer.WiFiIce watermelon, really comfortable. It has to be said that the invention of refrigeration equipment is of great significance to human beings.

The basic principle of refrigeration equipment is very simple: it is mainly composed of compressor, condenser, throttle valve, evaporator and refrigerant.1The compressor is responsible for converting electrical energy input into mechanical energy, sucking, compressing and transporting refrigerant vapor, thereby driving the cycle.2In the refrigeration process, the condenser plays the role of outputting heat energy and condensing refrigerant. 3, The main function of the throttle valve is to throttle the high-pressure room temperature refrigerant liquid and decompress it when it flows through the thermal expansion valve, and convert it into low-temperature and low-pressure refrigerant wet vapor (mostly liquid, a small part of vapor) into the evaporator to evaporate and absorb The heat in the evaporator achieves the purpose of cooling and cooling.4The function of the evaporator in the cooling system is to absorb heat.5Refrigerant is the flowing working medium in the refrigeration system. Its main function is to carry heat and achieve heat absorption and release when the state changes. It can also be seen in daily life such as pesticides and refrigerators.

It can be seen that the medium in which the heat conversion is undertaken is a refrigerant. It is well known that the substance changes from liquid to gas, and the volume will increase many times, so the air tightness of the equipment is required to be very good, because once leaked, the refrigeration capacity of the refrigeration equipment is greatly reduced, and even cannot be cooled. Some refrigerants have flammability, toxicity, etc.

At present, the mainstream and most widely used medium and low temperature environmental protection refrigerants in the world areR-134AAlso called tetrafluoroethane. There is another refrigerant that is also widely used.R-22, also called difluorochloromethane. These two refrigerants are widely used in refrigerators, freezers, water dispensers, automobile air conditioners, central air conditioners, dehumidifiers, cold storage, commercial refrigeration, ice water machines,ice cream machineRefrigeration equipment such as refrigeration condensing units. 

All links in the cold chain system need the normal operation of refrigeration equipment. Once the refrigerant leaks and the temperature of the cold storage increases, it is very likely that the fresh fruits, seafood and other foods that need to be refrigerated in the cold storage will deteriorate and damage, resulting in huge property losses. Refrigerated transport vehicles are more prone to loosening and damage of refrigerant pipe interfaces of refrigeration equipment due to bumpy roads and poor road conditions, resulting in refrigerant leakage, which will lead to a sharp rise in temperature inside the vehicle, and the preservation quality of transported items cannot be guaranteed. Therefore, it is necessary to regularly detect the leakage of refrigerant leakage points.

Here, it is recommended to use a portable refrigerant leak detector for detection. It is not recommended to use a fixed alarm. First, the alarm is working in a low temperature environment for a long time, and the sensor may be insensitive. Second, there are various odors in the cold storage, which are likely to cause pollution to the sensor, which is the failure of the sensor. The third is to reduce costs. One detector can inspect multiple devices, while the fixed type is basically one alarm at a time. Therefore, it is recommended to use a portable refrigerant leak detector for regular detection.

Here, recommend a sensor for portable refrigerant leak detectorTGS3830，Refrigerant sensorTGS3830It's JapanFIGAROResearch and development of semiconductor principle sensors,Right.R-134A、R22Such as refrigerant has good sensitivity, fast response, low power consumption, small sizeIt is a non-Often excellent low cost portable sensor ideal for refrigerant leak alarms.

Refrigerant sensor TGS3830Not onlyR-134A、R22Good sensitivity, at the same time the response speed and recovery speed are very fast, and the repeatability is very good.

The following isTGS3830The basic parameters:

Typical inspection objects:R-134a、R-22

Detection range:5-100ppm

Heating voltageVH：0.8V±3%

Loop voltageVC：5.0V DC Max

Heating power consumptionPH: about100mW

Load resistanceRL：10KΩMin

Preheating time:1Hours

TGS3830Using a unique bead sensitive element, plastic base and metal cap, the sensor has a good repeatability, the cumulative working life of up to air2000Hours, very practical for portable refrigerant detection instrument. Please consult for details.