Purification and distillation experiments of DLSB series low temperature liquid circulating pump

Main uses of DLSB series low temperature liquid circulating pump:

1, the compression refrigeration method of cryogenic liquid circulation equipment, can be in the reservoir can be directly cooling tube, reaction bottle for chemical reaction under low temperature, chemical and biological products stored at low temperature.

2. The supporting system consists of a low-temperature coolant circulating pump + a small rotary evaporator + a circulating water multi-purpose vacuum pump, which completes a small purification distillation experiment.

Low temperature liquid circulating pump price device is a kind of water cooling equipment, which can provide constant temperature, constant flow and constant pressure cooling water equipment. Working principle of the low temperature cooling liquid circulating pump prices is first added a certain amount of water to the machine inside the water tank, the water cooling through the cooling system, again by cryogenic cooling water pump into the cooling equipment, chilled water will heat temperature after it was taken back into the water again, achieve the effect of cooling. The cooling water temperature can be adjusted automatically according to the requirements, and the long-term use can save water. Therefore, the cryogenic coolant circulating device is a standard energy-saving device. Cooling principle of industrial cryogenic coolant circulating device

The low temperature liquid circulating pump price includes three systems: refrigerant circulating system, water circulating system and electric control system.

Liquid refrigerant in the evaporator absorbs the heat in the water and began to evaporate, liquid refrigerant also completely evaporate into a gas compressor suction and after compression (pressure and temperature increase), gaseous refrigerant absorbs heat through the condenser (air/water), condenses into liquid, through the thermal expansion valve or capillary throttle into low temperature low pressure refrigerant entering the evaporator, after completing the process of refrigerant cycle. Basic components of refrigeration system

Compressor: the compressor is the core component of the whole refrigeration system and the power source of refrigerant compression. Its function is to convert electrical energy into mechanical energy, inhale, compress and transport refrigerant vapor, driving the cycle.

Condenser: the condenser ACTS as an outlet for heat energy and condenses the refrigerant during refrigeration. From the refrigeration compressor exhaust pressure superheated steam entering the condenser, its entire in the working process of the absorption of heat, including from the evaporator and the compressor and the heat absorbed in the pipe are passed to the surrounding medium (air or water) away; Refrigerant high pressure superheated steam condenses again into liquid.

Dry filters: in refrigeration cycle must prevent moisture and dirt to enter, such as the source of the water main is the newly added refrigerant and oil contain trace moisture, or because the maintenance system of air into the water. If the system in the water is clean and has not been ruled out, when the refrigerant through the throttle valve (thermal expansion valve or capillary), due to the pressure and temperature drop sometimes frozen into ice water, make the channel block, affect the normal operation of refrigeration equipment. Therefore, a drying filter must be installed in the refrigeration system.

Throttle: thermal expansion valves (or capillaries) are installed in the refrigeration equipment between the dry filter and evaporator. The thermal expansion valves are wrapped in the evaporator outlet. Its main role is to make high pressure under normal temperature of the refrigerant liquid flows through the heat expansion valve throttling depressurization, into the low temperature low pressure refrigerant vapor (mostly liquid, a small steam) into the evaporator, vaporization heat within the evaporator, and achieve the goal of refrigeration cooling.

Evaporator: evaporator is a heat transfer device that relies on the evaporation of refrigerant liquid (actually boiling) to absorb heat from the cooling medium. Its function in a refrigeration system is to absorb heat. In order to ensure a stable and lasting evaporation process, the evaporative gas must be continuously pumped away with the refrigeration compressor to maintain a certain evaporation pressure.

Refrigerant: R22 or R407C is used as refrigerant in most industrial cryogenic coolant circulation devices used in modern industry. Refrigerant is a flow medium in refrigeration system. Its main function is to carry heat, and it can absorb and release heat when the state changes.