Equipment Overview
The Immersion Chiller achieves rapid temperature reduction by direct heat exchange between a liquid medium and the material, and is suitable for food processing scenarios requiring rapid cooling of the material.
The equipment form and configuration are designed according to the customer’s material, packaging method and capacity requirements.
Technical Parameters
The parameters below correspond to the tunnel-type continuous immersion cooling line, model DKN-RHV-2000L (throughput class 2000 kg/h). Other throughputs and site conditions are configured to order.
| Item | Parameter |
|---|---|
| Equipment type | Tunnel-type continuous line (mesh-belt conveying + immersion heat exchange) |
| Throughput | 0-2000 kg/h (varies with product) |
| Working temperature | ≤ -35°C |
| Temperature control accuracy | ±2°C |
| Cooling-liquid temperature uniformity | ±3°C |
| Tunnel circulation time | 20-100 min, adjustable |
| Tunnel inner chamber | 23260 × 2360 × 570 mm (effective belt width 2000 mm) |
| Overall dimensions (approx.) | 28000 × 3500 × 2280 mm |
| Power supply | 380V / 50Hz (3-phase, 5-wire) |
| Installed power | 320 kW |
| Operating power | approx. 270 kW |
| Heat-transfer medium | Refrigerant + food-grade cooling liquid (min. liquid temperature -50°C) |
The table shows the 380V/50Hz configuration. 60Hz and other voltage ratings for export markets are re-selected per order. Other throughputs, tank dimensions and refrigeration configurations are specified in the technical proposal prepared for your product — contact us to request it.
Refrigeration System
| Item | Parameter |
|---|---|
| Refrigeration unit | Single-machine two-stage brine compressor unit, screw compressor × 2 |
| Cooling capacity | 404.6 kW |
| Unit power consumption | 258.5 kW |
| Condenser | Shell-and-tube water-cooled condenser with large-flow cooling tower |
| Evaporator | Corrosion-resistant, low-temperature shell-and-tube evaporator |
| Circulation pumps | Dual circulation pump system, food-grade low-temperature pumps |
| Refrigerant | R22 or R507, expansion valve control |
| Cooling liquid | Food-grade, may contact food directly, min. liquid temperature -50°C |
| Design conditions | Summer outdoor design average 35°C, relative humidity 65% |
| Control | PLC + touch screen, automatic PID adjustment, remote monitoring supported |
Main Configuration
| System | Main configuration |
|---|---|
| Compressor unit | Screw compressor × 2, with protection module, liquid separator, low-pressure liquid injection |
| Oil circuit | Siphon oil cooler, external oil separator, external oil filter, oil solenoid valve, sight glass |
| High-pressure side | System stop valves, liquid supply filter, liquid supply ball valve, economizer and its expansion valve, receiver |
| Suction / low-pressure side | Suction stop valve, suction filter, liquid separator, liquid injection solenoid valve |
| Electrical | PLC, 10-inch touch screen, contactors and circuit breakers, control cabinet with remote monitoring |
| Enclosure and conveying | SUS304 inner and outer chamber, 120 mm foam insulation, food-grade low-temperature belt + scraper-type hold-down belt, mechanical screw lifting (max. 700 mm) |
| Auxiliary devices | Inline cooling-liquid concentration detection, air-knife/air-curtain dewatering, cooling-liquid recovery, adjustable spray modules, food-grade quick-connect piping |
| Safety protection | Compressor overload and overcurrent protection, high/low pressure protection, over-temperature protection, phase-sequence and phase-loss protection, anti-freeze protection |
Installation, Commissioning and Acceptance
- The power line from the main supply to the electrical cabinet is installed by the buyer.
- The equipment is delivered to the buyer’s site and installed and commissioned by the manufacturer’s personnel.
- Acceptance: on arrival the buyer checks appearance, configuration and safety; after commissioning, function and operation are checked; both parties then sign an acceptance protocol.
- Acceptance may also be carried out at the manufacturer’s works with the same scope (the method can be adjusted to actual conditions).
Warranty and After-sales
- One-year warranty for the complete machine.
- During the warranty period, faults caused by design or manufacturing are repaired free of charge by the supplier; after the warranty period, long-term technical support plus preferential spare parts and service are provided.
- The supplier arranges free on-site after-sales assistance visits on a regular basis every year.
- In case of a fault, the supplier responds by phone or video as soon as the fault report is received and gives a solution within 2 hours; if the issue cannot be solved by phone, the supplier arrives on site within 24 hours, with troubleshooting time not exceeding 72 hours, and the service technician leaves the site after the problem is solved and the buyer agrees.
- Specific terms such as warranty period, response time, on-site and troubleshooting time limits and service visit frequency are per the signed sales contract.
Applications
- Food processing stages requiring rapid cooling
- Materials with requirements on cooling rate and temperature uniformity
- Cooling sections customized to the customer’s production line pace
Information Needed for Selection
To configure the equipment accurately, please provide the following information:
| Item | Description |
|---|---|
| Material type and form | Unpackaged / packaged, single-piece dimensions and weight |
| Batch throughput | kg/batch or kg/h |
| Infeed temperature | Temperature of the material when it enters the equipment |
| Target temperature | Temperature to be reached at discharge |
| Cooling medium | Water, brine or other liquid medium |
| Site and power supply | Available area, clear height, power supply specification |
Tell us your material and process requirements, and we will design the unit configuration and cooling process according to your actual needs.
Product Photos
Detail pages for this series
The models below have complete technical documentation; open a model to see its full specifications and configuration.
- DKN-RHV-2000L — Immersion chiller
- DKN-RHV-500L — Immersion chiller
- DKN-RHV-1000L — Immersion chiller
- DKN-RHV-1500L — Immersion chiller
- DKN-RHV-200 — Immersion chiller
- DKN-RHV-100 — Immersion chiller
- DKN-RHV-50 — Immersion chiller