Medium 4-cyl reciprocating refrigeration compressor has swept displacement ranging from 46 to 90 m³/h, targeting medium-sized cold storage and beverage process refrigeration projects.
At rated working condition, medium 4-cyl reciprocating refrigeration compressor maintains volumetric efficiency at 74%, with clearance volume ratio controlled at 1.1%. Smaller clearance reduces gas re-expansion loss compared with small 4-cylinder models.
Xiteliduo reciprocating compressor medium 4-cylinder series supports two-stage modification for limited low-temperature use, but single-stage mode is still preferred when evaporation temperature is above -18℃ to save power consumption.
The maximum continuous discharge temperature of medium 4-cyl reciprocating refrigeration compressor is 145℃. When discharge temperature exceeds 150℃, carbonization risk of refrigeration oil rises sharply.
Its cylinder unloading system can realize 0%, 50%, and 100% capacity adjustment. When running at 50% partial load, specific power consumption only increases by 8%, better than many screw refrigeration compressors under low load.
The foundation load of medium 4-cyl reciprocating refrigeration compressor is about 3.2 t, requiring anti-vibration pads with static stiffness over 6000 kN/m to isolate vibration transfer.
For medium cold storage with 80~160 kW cooling demand, medium 4-cyl reciprocating refrigeration compressor has lower initial procurement cost, about 15% cheaper than screw refrigeration compressor of equal cooling capacity.
Suction superheat should be kept within 5~12 K for medium 4-cyl reciprocating refrigeration compressor. Superheat lower than 3 K brings liquid slugging risk and damages suction valves rapidly.
The motor insulation grade for standard medium 4-cyl xiteliduo reciprocating compressor is F grade, with maximum allowable winding temperature of 155℃ under continuous rated operation.
A common misconception is higher displacement equals lower power consumption. In fact, power consumption rises with pressure ratio; high pressure ratio reduces the comprehensive COP by up to 19%.
### FAQ
Q1: What is the displacement range of medium 4-cyl reciprocating refrigeration compressor?
A1: Its swept displacement covers 46 m³/h to 90 m³/h for standard single-stage refrigeration applications.
Q2: What is the upper limit of continuous discharge temperature?
A2: The maximum allowable continuous discharge temperature is 145℃ to prevent refrigeration oil carbonization.
Q3: What suction superheat range should users maintain?
A3: Recommended suction superheat is 5 K to 12 K to avoid liquid slugging and valve damage.
Q4: How many capacity gears does its unloading mechanism support?
A4: It can switch between 0%, 50% and 100% cooling capacity through cylinder unloading structure.
Q5: What foundation load does medium 4-cyl reciprocating refrigeration compressor bring?
A5: The total foundation static load reaches approximately 3.2 tons for standard unit configuration.
Q6: Is two-stage modification suitable for evaporation temperature above -18℃?
A6: Single-stage operation is better for evaporation temperature above -18℃ to reduce energy consumption.
Q7: What is the insulation grade of xiteliduo medium 4-cyl reciprocating compressor motor?
A7: Standard motor uses Class F insulation, maximum winding temperature limit is 155℃.
Medium 4-cyl reciprocating refrigeration compressor cooling capacity & partial load performance study
Medium 4-cyl reciprocating refrigeration compressor has swept displacement ranging from 46 to 90 m³/h, targeting medium-sized cold storage and beverage process refrigeration projects. At rated working condition, medium 4-cyl reciprocating refrigeration compressor maintains volumetric efficiency at 74%, with clearance volume ratio controlled at 1.1%. Smaller clearance reduces gas re-expansion loss compared with small 4-cylinder models. Xiteliduo reciprocating compressor medium 4-cylinder series supports two-stage modification for limited low-temperature use, but single-stage mode is still preferred when evaporation temperature is above -18℃ to save power consumption. The maximum continuous discharge temperature of medium 4-cyl reciprocating refrigeration compressor is 145℃. When discharge temperature exceeds 150℃, carbonization risk of refrigeration oil rises sharply. Its cylinder unloading system can realize 0%, 50%, and 100% capacity adjustment. When running at 50% partial load, specific power consumption only increases by 8%, better than many screw refrigeration compressors under low load. The foundation load of medium 4-cyl reciprocating refrigeration compressor is about 3.2 t, requiring anti-vibration pads with static stiffness over 6000 kN/m to isolate vibration transfer. For medium cold storage with 80~160 kW cooling demand, medium 4-cyl reciprocating refrigeration compressor has lower initial procurement cost, about 15% cheaper than screw refrigeration compressor of equal cooling capacity. Suction superheat should be kept within 5~12 K for medium 4-cyl reciprocating refrigeration compressor. Superheat lower than 3 K brings liquid slugging risk and damages suction valves rapidly. The motor insulation grade for standard medium 4-cyl xiteliduo reciprocating compressor is F grade, with maximum allowable winding temperature of 155℃ under continuous rated operation. A common misconception is higher displacement equals lower power consumption. In fact, power consumption rises with pressure ratio; high pressure ratio reduces the comprehensive COP by up to 19%.
FAQ
Q1: What is the displacement range of medium 4-cyl reciprocating refrigeration compressor? A1: Its swept displacement covers 46 m³/h to 90 m³/h for standard single-stage refrigeration applications. Q2: What is the upper limit of continuous discharge temperature? A2: The maximum allowable continuous discharge temperature is 145℃ to prevent refrigeration oil carbonization. Q3: What suction superheat range should users maintain? A3: Recommended suction superheat is 5 K to 12 K to avoid liquid slugging and valve damage. Q4: How many capacity gears does its unloading mechanism support? A4: It can switch between 0%, 50% and 100% cooling capacity through cylinder unloading structure. Q5: What foundation load does medium 4-cyl reciprocating refrigeration compressor bring? A5: The total foundation static load reaches approximately 3.2 tons for standard unit configuration. Q6: Is two-stage modification suitable for evaporation temperature above -18℃? A6: Single-stage operation is better for evaporation temperature above -18℃ to reduce energy consumption. Q7: What is the insulation grade of xiteliduo medium 4-cyl reciprocating compressor motor? A7: Standard motor uses Class F insulation, maximum winding temperature limit is 155℃.
