DKN-RHV-200 is the cabinet model in the Kunning Cryo RHV series of immersion rapid chillers: RHV denotes compressor refrigeration, rapid chilling, and tank structure, while 200 denotes a single-batch capacity of 200 kg. Heat exchange does not rely on blowing cold air; instead, basketed product is immersed in food-grade low-temperature refrigerant for direct contact heat exchange, and the series refrigerant temperature can go as low as -50℃. The unit consists of three parts: the immersion tank, the compressor refrigeration unit, and the control system, with a power supply of 380V/50Hz.
200 kg is a batch-level nominal value; the tank volume and actual loading per batch are calculated based on individual product weight and placement method, subject to the order technical annex.
Technical Parameters
| Item | Parameter |
|---|---|
| Product model | DKN-RHV-200 |
| Product line | Immersion rapid chiller (cabinet type) |
| Model meaning | RHV = compressor refrigeration · rapid chilling · tank; 200 = single-batch capacity 200 kg |
| Equipment form | Cabinet type, single-batch loading, product immersed in refrigerant for heat exchange |
| Single-batch capacity | 200 kg/batch (nominal value, calculated per product and basket specifications) |
| Heat exchange medium | Food-grade refrigerant (may contact food directly) + refrigerant |
| Refrigerant temperature | Series refrigerant temperature can go as low as -50℃ |
| Working temperature / temperature control accuracy | Confirmed per order (series design calculated at ±2℃ class control) |
| Tank volume | Confirmed per order |
| Inner tank dimensions / equipment external dimensions | Confirmed per order |
| Refrigeration method | Compressor refrigeration unit + coolant circulation, unit selected per single-batch capacity and target temperature |
| Condensing method | Confirmed per site conditions and order (air-cooled / water-cooled / evaporative) |
| Total unit power | Confirmed per order |
| Control method | PLC + touchscreen, manual/automatic switching, PID automatic regulation |
| Power supply specification | 380V/50Hz, three-phase five-wire |
| Export configuration | If the export region requires 60Hz or other voltage levels, re-selection per order |
Actual loading and cooling time vary with product type, individual weight, inlet temperature, and packaging method.
Structure and Configuration
Tank and Insulation
- The inner and outer walls of the tank are formed by welded SUS304 food-grade stainless steel plates, with reinforcing ribs at load-bearing positions to maintain shape under load.
- The exterior of the tank uses a multi-layer adiabatic foamed insulation structure to reduce heat absorption from the environment by the refrigerant.
- The lower part of the tank converges at an incline, equipped with a drain pipe and shut-off valve for thorough emptying during liquid change and cleaning; the top cover can be opened for loading and inspection.
Refrigeration and Refrigerant Circulation
- The refrigeration unit is compressor refrigeration with coolant circulation; cooling capacity is selected per single-batch capacity, inlet temperature, and target temperature.
- The refrigerant is a food-grade medium; concentration and cleanliness are monitored according to operating conditions in daily use.
- The circulation pump is configured per tank volume to make the liquid temperature in the tank uniform and avoid local temperature differences extending cooling time; the refrigerant piping is insulated on the outside.
Control and Safety
- Touchscreen input plus PLC intelligent control, PID automatic regulation, multiple process programs can be stored and called up with one touch.
- Temperature measurement uses PT100 platinum resistance; after the program ends, it automatically alarms and cuts power.
- Protection functions cover compressor overload and overcurrent, high/low pressure, over-temperature, phase sequence and phase loss, and antifreeze protection.
Application Scenarios
| Scenario | Description |
|---|---|
| Cooling of cooked food and braised products after cooking | After a single batch is removed from the pot, it goes directly into the tank, shortening workshop cooling time |
| Central kitchens and group catering | Processed in batches by shift, aligned with packaging rhythm |
| Prepared dishes and ready meal packs | Multi-category small-batch switching, process programs called up by batch |
For production lines requiring continuous feeding and stable hourly output, see the continuous line models in the same series and the immersion rapid chiller product line page; for comparison with air-cooled cabinet solutions, see food blast chiller; for how to choose between liquid nitrogen and compressor refrigeration, see comparison of liquid nitrogen quick freezing and mechanical refrigeration quick freezing.
Installation Conditions
- Site: Reserve space for loading, unloading, and maintenance according to external dimensions; treat the floor for moisture protection and provide drainage slope.
- Power: 380V/50Hz three-phase five-wire; wiring from the main line to the electrical control cabinet is to be laid by the buyer.
- Media: The site needs storage conditions for refrigerant and refrigerant agent; water-cooled configuration requires reserved space for a cooling water tower and circulating water circuit (confirmed per order).
Warranty and After-Sales
The entire unit has a one-year warranty; after receiving fault information, a solution is provided within 2 hours; if it cannot be resolved remotely, arrival on site within 24 hours and problem elimination within 72 hours; one free on-site service per year, with long-term technical support after the warranty period.
Frequently Asked Questions
Is the 200 kg single-batch capacity a fixed output?
200 kg is the nominal value of single-batch capacity; actual loading is calculated per individual product weight, basket specifications, and placement method, and batch rhythm is further叠加 by cooling and loading/unloading time.
Must products be packaged before entering the tank?
The refrigerant can contact food directly, so bare products can be immersed directly for cooling, and immersible packaging forms are also permitted. The two have different thermal resistance, so process times must be set separately.
How low can the refrigerant temperature go, and how is temperature controlled?
The series refrigerant temperature can go as low as -50℃; the actual working temperature of this model is determined in the order according to product and target temperature; temperature control is achieved by PLC with PID regulation, with PT100 platinum resistance for measurement.
What should be prepared for site and power distribution?
Power distribution is 380V/50Hz three-phase five-wire; after the total unit power is confirmed per order, capacity and wire diameter are calculated; the site should reserve operating and maintenance access according to external dimensions.
What is the difference between it and DKN-RHV-500, RHV-1000L?
All three belong to the RHV series, with differences in structure: RHV-200 and RHV-100 are cabinet-type single-batch loading models, while RHV-1000L is a tunnel-type continuous production line. For continuous feeding, choose the line-type model with L; for batch production with frequent category switching, choose the cabinet type.
To calculate tank volume, refrigeration configuration, and cooling time according to product and batch rhythm, describe the product form, individual weight, single-batch loading, inlet temperature, and target temperature, and we will provide a solution based on actual needs: Contact us.