Maintenance tools for refrigeration people
1. a pressure gauge.
Pressure gauges are commonly used tools in refrigeration systems to measure pressure in a system. It usually consists of two main components: a high-pressure gauge and a low-pressure gauge. A high-pressure gauge is used to measure the pressure on the high-pressure side (compressor outlet) in a refrigeration system, while a low-pressure gauge is used to measure the pressure on the low-pressure side (compressor inlet or condenser outlet) in a refrigeration system.
Check the system pressure: By connecting to the pressure port of the refrigeration system, the operating pressure of the system can be monitored to ensure that it is operating within the normal range. This helps to determine if there is a pressure anomaly in the system.
Refrigerant Charge: During refrigeration system maintenance and charging, pressure gauges can be used to determine the amount of refrigerant charge in the system. Based on the readings of the pressure gauge, the charge of the refrigerant can be controlled to achieve the normal working pressure required by the system.
Vacuuming: When installing or servicing a refrigeration system, it is often necessary to vacuum the system. Pressure gauges can be used to monitor the evacuation process and ensure that the system achieves the required vacuum level.
Lubricating oil: Some types of refrigeration systems require regular lubrication to ensure smooth operation. A pressure gauge can help determine the amount of lubricant to be filled and ensure that proper pressure is maintained during the filling process.
The use of a three-head gauge (which includes both a high-pressure, a low-pressure, and a vacuum gauge) can provide more comprehensive information and help with more precise operations. Please note that when operating and maintaining your refrigeration system, you should follow the relevant safety regulations and ensure that the correct tools and proper operating methods are used.
2. Leak detector.
Thermal conductivity method: This method uses the difference in thermal conductivity between the leaking gas and the air to detect leaks.
When a leaking gas enters the leak detector, it causes a temperature change that can be detected by a thermal element.
Semiconductor sensors: This method uses semiconductor sensors to detect leaking gases. When a leaking gas comes into contact with a semiconductor sensor, it causes a change in resistance or voltage, which detects a leak.
Ultraviolet detection method: This method is commonly used to detect freons in refrigerants. Leak detectors detect fluorescence in gases by scattering ultraviolet light to find leaks.
When using a leak detector, it is generally necessary to scan around the area where there may be a leak or to bring the leak detector close to a potential leak point. When a leak detector detects a leak, it usually sounds or displays a warning to alert the operator.
3. Vacuum pump.
Pumping air and moisture: Refrigeration systems need to be kept dry to avoid the presence of moisture and other non-condensable gases.
Vacuum pumps remove impurities from the refrigeration system by extracting air and moisture, ensuring that the system is in a dry state.
Detect leaks: Leaks are a common problem in refrigeration systems and can lead to refrigerant loss and degraded system performance. Leaks can be detected by using a vacuum pump to extract the gas from the refrigeration system. If the system is not able to achieve the required vacuum level, it is an indication that there is a leak and needs to be repaired.
Preparing for refrigerant charge: Vacuum pumps are often used to prepare for refrigerant charge during refrigeration system installation or maintenance.
By pumping the gas from the system, the vacuum pump can provide a clean, dry environment for subsequent refrigerant filling, ensuring the quality of the refrigerant and the normal operation of the system.
4. a pipe bender
Pipe benders are usually classified according to the design of the guide wheel and guide trough to suit the processing needs of copper pipes of different diameters. In addition, the pipe bender can also be distinguished according to the metric system and the imperial system to meet the usage habits of different regions.
5. Expander tube.
Typically used for threaded fittings or other connections where mating is not suitable.
It is designed to ensure tightness and strength at the junction. By using a bulging tube, one side of the copper tube can be expanded into a horn shape for connection with other components. The cup-shaped mouth is used to connect two copper tubes of the same diameter. One of the copper tubes is inserted into the diameter of the other tube, and then the inserted copper tube is expanded by using a tube expander.
This connection provides a reliable seal and a secure connection.