DKN-RHV-1000L is a continuous line model in the Kunning Cryo RHV series of immersion chillers. In the model number, 1000 indicates the processing capacity level, and L indicates the continuous line structure. Its heat exchange method differs from air-cooled equipment: material is conveyed by a food-grade mesh belt and directly immersed in low-temperature freezing liquid for heat exchange. The freezing liquid can contact food directly, and its thermal conductivity and heat capacity are higher than air. The complete machine consists of three parts: the tunnel line (cabinet, mesh belt, freezing liquid circulation), the compressor refrigeration unit, and the control system. Power distribution specification is 380V/50Hz.
The processing capacity, tank volume, and tunnel dimensions of this specification have no fixed values. They are calculated and determined according to material thickness, inlet temperature, and target core temperature, subject to the order technical annex.
Technical Parameters
| Item | Parameter |
|---|---|
| Equipment form | Tunnel-type continuous production line, mesh belt conveying + immersion heat exchange |
| Model meaning | RHV = compressor refrigeration · rapid cooling · tank; 1000 = processing capacity level; L = continuous line model |
| Heat exchange medium | Food-grade freezing liquid (can contact food directly) + refrigerant |
| Freezing liquid temperature | This series freezing liquid can be as low as -50℃ |
| Processing capacity / tank volume | Confirmed per order |
| Working temperature / temperature control accuracy | Confirmed per order |
| Tunnel cycle time | Confirmed per order (mesh belt variable frequency speed control) |
| Tunnel inner cabinet dimensions / equipment external dimensions | Confirmed per order |
| Refrigeration method | Compressor refrigeration unit + coolant circulation, unit selected according to processing capacity and target temperature |
| Power distribution specification | 380V/50Hz, three-phase five-wire |
| Total machine power | Confirmed per order |
| Control method | PLC + touch screen, manual/automatic switching, PID automatic adjustment |
| Export configuration | If the export region requires 60Hz or other voltage levels, re-selection is made per order |
Processing capacity varies with material type, piece weight, and packaging method.
Structure and Configuration
Cabinet and Insulation
- Inner and outer cavities are formed from SUS304 stainless steel plate by shearing, bending, and welding, with reinforcing ribs at load-bearing positions.
- The insulation layer is a multi-layer thermal insulation foam structure; the upper cover is a thermal insulation cover that can automatically flip to both sides and is detachable.
- The lower part of the freezing tank is inclined for convergence, equipped with a freezing liquid discharge pipe and shut-off valve.
Mesh Belt and Conveying
- Food-grade low-temperature dedicated conveying mesh belt, variable frequency speed control, equipped with automatic mesh belt tension adjustment device and pressure belt.
- The circulation tank is of convection design, with spray pipes for circulation at the bottom and both sides of the mesh belt.
- Segmented lifting mesh belt quickly lifts and discharges material, reducing product temperature rise and condensate backflow; the mesh belt and bracket can be mechanically raised and lowered for easy cleaning.
Discharge, Control, and Safety
- The discharge end has two air knives plus high-pressure airflow for water removal, with a tail air knife for drying and a freezing liquid recovery device.
- Control is PLC plus touch screen, PID automatic adjustment, platinum resistance temperature measurement, automatic alarm and power-off at program end.
- Protection functions cover compressor overload and overcurrent, high and low pressure, over-temperature, phase sequence and phase loss, and anti-freeze protection.
Application Scenarios
| Scenario | Description |
|---|---|
| Aquatic processing | Shrimp, fish fillets, shellfish, and other individual quick-cooling materials that can be continuously fed |
| Cooked food and braised food | Continuous rapid cooling section after cooking, reducing workshop stacking and waiting |
| Prepared dishes and frozen meals | Cooling or freezing section after cooking, preceded by portioning and followed by packaging |
| Central kitchens and group meals | Continuous cooling aligned with portioning rhythm |
| Production line renovation | Replacing batch cooling equipment, connecting front and rear conveying lines |
For situations with small single batches and frequent category switching, a batch-type food rapid cooling cabinet can be used; for projects requiring lower temperatures and accepting liquid nitrogen consumption, see Liquid Nitrogen Quick Freezing vs. Compressor Refrigeration Quick Freezing Comparison; for equipment forms, see the immersion chiller product line page.
Installation Conditions
- Site: Reserve operating passages, maintenance space, and freezing liquid tank cleaning surfaces according to equipment length.
- Power supply: 380V/50Hz three-phase five-wire; wiring from the main line to the electrical control cabinet is laid in place by the buyer.
- Media: The site needs storage conditions for freezing liquid and refrigerant; water-cooled condensation configuration requires reserved space for a cooling water tower and circulating water circuit (confirmed per order).
Warranty and After-Sales
The complete machine has a one-year warranty; after receiving fault information, a solution is provided within 2 hours. If remote resolution is not possible, arrival on site is within 24 hours, and the problem is resolved within 72 hours; one free on-site service per year, with long-term technical support provided after the warranty period.
Frequently Asked Questions
What is the processing capacity of DKN-RHV-1000L?
1000 is the processing capacity level, not a fixed output. Actual processing capacity is calculated according to the material’s piece weight, thickness, inlet temperature, and target core temperature. Continuous processing capacity is measured in kilograms per hour.
Must the material be packaged? Can it contact the freezing liquid directly?
The freezing liquid is a food-grade medium that can contact food directly, and packaging forms that allow immersion are also permitted; bare materials and packaged materials have different thermal resistance, so cycle times must be determined separately.
What should be prepared for the site and power distribution?
Power distribution is 380V/50Hz three-phase five-wire. After the total machine power is confirmed per order, capacity and wire diameter are calculated; the site should reserve passages, maintenance, and cleaning work surfaces according to equipment dimensions.
What is the difference between it and DKN-RHV-500L, DKN-RHV-2000L?
The three are models of the same series with different processing capacity levels. All are tunnel-type continuous production lines with mesh belt conveying plus immersion heat exchange. The differences are in tunnel length, effective mesh belt width, and unit configuration; this model’s processing capacity, freezing liquid temperature, and cycle time are calculated per order.
To calculate tunnel length and refrigeration configuration according to materials and production line rhythm, describe the material form, piece thickness, inlet temperature, target core temperature, and site conditions, and we will provide a solution based on actual needs: Contact us.