药厂空调箱发包规范(3)

a smooth natural finish and Vapour sealing properties, install without splitting. Glue and tape to provide continuous vapour seal.

在盘管出风外部或不高于冷凝水集水盘的冷凝水排水管，须采用带有光滑表面和汽闭特性的管状弹性材料保温，安装时不得有缺口，胶水和胶带须保证连续的汽闭。

4.3.11 Provide ANSI Class 150 mated flanges for coils.

为盘管提供满足ANSI 150的法兰。

4.3.12 Heat recovery coil shall be of the efficiency performance as below:

热回收盘管须具有以下的效率。

Minimum 70% of sensible efficiency under the operating condition in summer & winter modeEfficiency performance of heat recovery shall be calculated as per ASHRAE standard 84 and ARI standard 1060.

效率计算须依据ASHRAE 84和ARI 1060标准，在冬季和夏季的工况下，其运行状况下的效率至少为70%。

The conditions of heat recovery coil as following: 盘管热回收的运行工况 Summer夏季

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Outdoor air condition: 34°C / 80%RH vs Exhaust condition: 24°C / 50%RH 室外新风34°C / 80%RH，室内排风24°C / 50%RH

Winter 冬季

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Outdoor air condition: -4°C / 75%RH vs Exhaust condition: 20°C / 50%RH 室外新风-4°C / 75%RH，室内排风20°C / 50%RH

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4.4 Fans

4.4.1 Product should be AMCA certified.

4.4.2 Unit mounted supply and exhaust air fans and exhaust air fans shall be plug fan.

机组送风机和排风机应为无蜗壳风机。

4.4.3 Fans shall be designed to reach the maximum efficiency at 65 - 85% of design

maximum airflow rate.

风机应在最大设计风量的65 - 85%时达到最大效率。

4.4.4 The fans shall be selected and commissioned to provide their rated air flow as

specified with the filter resistance increase at 100% of the difference between clean and fully loaded resistance.

在空气过滤器阻力从洁净到增至100%满负荷的范围内，该风机应选择和调试能满足规定的额定风量的产品。

4.4.5 The VSD range of fan motor shall be within 45 – 55Hz when achieving design

point.

当达到设计点时，风机马达的变频调速应在45至55 Hz的范围内。

4.4.6 Spare capacity of fan motor selection shall be not less than 15%.

风机电机选型时应预留15%的余量。

4.4.7 Panels and framework shall be constructed of heavy-gauge steel, pre-punched for

ease of installation, with die-formed flanges and welded corners. Rigid steel gussets shall be welded to the frame and motor supports to assure precise drive alignment and reduce low frequency vibration.

面板和框架应由厚规格钢制成，预先穿孔以易于安装，带模具制成的法兰和焊接角。硬质铁制角撑板应焊接在支架和马达支撑，以确保准确的驱动对准度，并减少低频震动。

4.4.8 Fan wheels (impellers) shall be of the non-overloading airfoil centrifugal type. Fan

wheels (impellers) shall be statically and dynamically balanced so that they are vibration free at all speeds. Fan wheel shall be constructed of anti-corrosion treated carbon steel.

风机叶轮为非过载的后向叶片叶轮，并进行动态和静态平衡以满足在任何速度下无振动。风机叶轮应由防腐处理碳钢制成。

4.4.9 The wheel and fan inlet shall be carefully matched and shall have precise running tolerances for maximum performance and operating efficiency.

叶轮和风机进口应仔细配合，具备精确运行的允许公差，用于最大限度的性能和运行效率。

4.4.10 Fan inlet shall be provided with a stainless steel (304) inlet screen to avoid the

damage to the fan wheel caused by foreign object.

风机进风端需加装不锈钢（304）防护网，以防止异物进入流道对叶轮造成损害．

4.4.11 After fabrication, all carbon steel components shall be cleaned and chemically

treated by a phosphatising process to ensure proper removal of grease, oil, scale etc. Fan shall then be coated with a minimum of 2 - 4 mm of Polyester Urethane, electro statically applied and baked.

制造完毕后，所有碳钢构件应进行清洁，并利用磷酸化过程进行化学处理，以去除油脂和杂质等。然后，风机应静电喷涂 2 - 4毫米的聚氨酯再烘干。

4.4.12 Motor bearings shall be heavy duty grease lubricated, self aligning ball type.

Bearings shall be selected for a basic rating fatigue life of 80,000 hours at maximum operating speed for each pressure class (Average Life of 400,000 hours). Bearings shall be have low swivel torque, being 100% tested for noise and vibration, and 100% testing to insure the inner race diameter is within tolerance to prevent vibration.

马达轴承应通过油脂进行润滑，为自调心球轴承型。轴承应根据在各压力等级最大运行速度下80,000小时的基本额定疲劳寿命进行选择（400,000小时的平均寿命）。轴承应具备低旋转转矩，100%测试噪声和震动，100%测试以保证内套直径在允许公差内，避免震动。

4.4.13 The fan & motor units shall be mounted on a common base frame, to which the fan and motor shall be bolted. The bases shall include motor slide rails and vibration isolation mounts. The vibration isolation mounts shall be spring type with captive spring and seismic restraint.

风机马达应固定在基础支架上，用螺栓与支架连接。基础应包括马达的滑轨和减振装臵。减振装臵应为吸振和抗震的弹簧类型。

4.4.14 Fan motors shall be of three phase 380-415V, T.E.F.C. type of not less than IP55

degree of protection. Motor bearings shall be fitted with grease valves (nipples) to permit grease during operation. The bearing shall have an opening in the bearing cover to permit older grease to escape, the design of the bearing arrangement shall provide good protection against ingress of dust and other impurities.

风机马达应为3相380-415V, 全封闭风冷型，保护等级不小于IP55。马达轴承应配备针式注油阀，可在运行中加油。轴承应在外壳上有开口，允许旧有润滑油流出。轴承设计应提供良好保护，以避免灰尘和其他杂质进入。

4.4.15 Unless otherwise noted all supply air fan sound levels shall be `in-duct' sound

power levels.

除非另有说明，所有的送风机噪音等级应为“风管内”的噪音等级。

4.4.16 Additional structural support during transport, captive fan mounts, bo …… 此处隐藏：2552字，全部文档内容请下载后查看。喜欢就下载吧 ……