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冷库热负荷计算器：传热、产品与渗透负荷
本工具将冷库总热负荷拆解为围护结构传导、产品降温、门开渗透和照明设备等内部得热四个分项，逐项以kW显示，便于核对每个环节对总负荷的贡献。
Standard engineering assumptions
此处制冷kW是指从房间中移除的热量，并非用电功率。用电功率 ≈ 制冷负荷 ÷ 系统COP，再加上辅助设备耗电。
本结果仅为规划估算。最终制冷量、设备选型、制冷剂、安全要求、价格及能效表现，须由所选定的具备资质制冷供应商最终确认。
Estimates Only: This calculator is provided for general informational purposes only. Results are approximate and may contain errors, omissions, or outdated information. They do not constitute legal, financial, engineering, tax, technical, or professional advice. Users are solely responsible for independently verifying all calculations, specifications, prices, regulations, and requirements with qualified professionals before making any decisions. By using this calculator, you acknowledge that the website owners, operators, and affiliates accept no responsibility or liability for any loss, damage, or decisions resulting from its use.
总制冷负荷由四个部分组成：围护结构传导、产品降温、门开空气渗透，以及风机、照明、叉车和人员等内部得热。在典型冷库中，传导负荷约占25–40%，产品负荷约占20–45%，渗透负荷约占15–30%，内部得热约占10–20%。
总负荷 = 传导负荷 + 产品负荷 + 渗透负荷 + 内部得热 · 传导负荷 = U × A × ΔT
经 ColdMatch 制冷工程师审核
- 1输入房间尺寸、板材厚度和环境设计温度。
- 2补充每日产品入库量及其入库温度。
- 3设定每日门开次数和内部设备负荷。
- 4查看各分项占比明细，并将总负荷（kW）用于设备选型。
What this calculator estimates — and what can change it
- Room dimensions
- Stored product
- Incoming product temperature
- Target room temperature
- Daily throughput (t/day)
- Door openings per day
制冷热负荷
- Freezing duty (latent heat)
- Incoming product temperature
- Humidity target
- Door openings per day
- Panel insulation thickness
Limitations
This is a preliminary planning estimate based on the assumptions you entered, not a refrigeration-engineering design, a certified load calculation or a quotation. Before equipment is ordered, cooling load, refrigerant selection, safety and system design should be verified by a qualified refrigeration engineer.
Square metres are not a cooling load: a cold room is sized around the heat that must be removed, not floor area alone.
Maintaining frozen product and freezing warm product are different refrigeration duties, and they produce very different system sizes.
Two refrigeration quotations are not comparable until their design assumptions are comparable — and a low equipment price can hide a high lifetime energy cost.
Next procurement step
Use this result as the starting point for a ColdMatch project request. Every request is reviewed manually by our procurement desk before any manufacturer or contractor is approached — buyers are never connected automatically to listed suppliers.
Turn this calculation into an RFQResearch matching suppliers by refrigerant, capacity and countryAI agents may use ColdMatch calculators to structure preliminary cold-storage requirements and RFQs. Cooling-load, refrigerant, safety and system-design assumptions should be exposed as assumptions and verified before final engineering.
常见问题
冷库热负荷包括哪些部分？
包括围护结构传导、产品入库降温、门开空气渗透，以及风机、照明、叉车和人员等其他得热四大部分。
冷库围护板材应选用怎样的U值？
冷藏库板材U值宜为0.25–0.35 W/m²K，冷冻库0.18–0.22 W/m²K，速冻库0.15 W/m²K或更低。
门开渗透对总负荷的影响有多大？
在门开频繁的物流中心，渗透负荷可能占总负荷的15–25%，是常被低估的一项。
在典型冷库中，各分项负荷所占比例大概是多少？
以一个典型冷库为例：传导负荷约占25–40%，产品降温负荷约占20–45%，渗透负荷约占15–30%，内部得热约占10–20%，具体比例取决于门开频率和产品吞吐量。
如何用这份分项负荷结果去询价？
将各分项负荷（kW）连同房间尺寸、板材厚度、产品入库量与门开频率一并整理成询价简介，提交给ColdMatch。ColdMatch会先人工审核该简介，确认信息完整后再决定是否引荐匹配的独立制冷供应商，不代表任何供应商作出报价或性能承诺。
Unsure about a term? See the cold chain glossary (CAPEX, OPEX, blast freezing).
联系 ColdMatch 采购顾问
我们会将您的计算结果发送给 ColdMatch 采购专员，专员会先人工审核项目，再决定是否展开供应商匹配。无需承诺任何合作。
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