Rinse/reclaim acid (wash water, off

Rinse/reclaim acid (wash water, off spec acid, purged acid) will be delivered to the acid mixing skid by means of a duplex set of gear pumps controlled by VFD’s. The pumps will be installed on polypropylene pump stands adjacent to the Rinse/Reclaim Tank, typically designated as Tank R-1 within the secondary containment structure for the Acid Mixing Room. Systems will typically include 1or 2 more (R2 and R3) Rinse/Reclaim Tanks. A common header is also provided connecting all the Rinse/Reclaim tanks. If desired, system can be run in manual mode with tanks R2 and/or R3 supplying the feed pumps.

The acid mixing skid will include a water tank (~150 gals) for assisting in the mixing of low gravity (ie, 1.150 SG) acid and the preparation of 1.400 SG acid for paste mixing (rinse/reclaim is not used to mix pasting acid).

Sodium sulfate solution can also be added during mixing. Setup and operation of the sodium sulfate solution is discussed in Section 5.5 of this functional spec.

The mixing skid is normally equipped with a ¾” Kynar flange connection for concentrated acid, a 1½” CPVC connection for rinse/reclaim, a ¾” CPVC connection for sodium sulfate solution and a 1½” connection for the water line. Vendor shall verify that line sizes provided are adequate for the expected flow rates listed in Section 5.1.1 above. Each feed line shall include a manual valve, flow sensor, actuator valve, and back flow preventer valve. Kynar or other type of heat resistant piping shall be used upstream of the blend point. A Kynar static mixing tube shall be installed between the blend point and the heat exchanger.

After exiting the heat exchanger, a density cell shall be used to measure the acid specific gravity. The total flow or more typically a slip stream flows through the density cell. Cell components shall be selected that are resistant to materials and impurities (ie, sulfur dioxide) that may be present in the sulfuric acid. The system shall also include a manual gravity check station (w/ a hydrometer) to sample and check the specific gravity. The acid mix skid shall include provisions to automatically flush the density cell at preselected intervals.

Each feed line to the skid shall include magnetic flow meter. The acid mix skid will include either a graphite block or ceramic tube heat exchanger. Graphite block or ceramic tube units are preferred.

5.1.3 Typical System Operation

The system shall be capable of preparing the mixed acid in both an automatic and manual mode. In the auto mode, the system shall continually monitor the level in all the mixed acid storage tanks. When a preselected level is detected in one of the tanks, the mixing process shall be initiated. During setup, initial pump speeds will selected for the acid, rinse/reclaim, and water pumps. After the initial run and/or setup, pump speed will be set based on the speeds that the pumps were running at when the last mix cycle for that specific gravity was run.

For battery fill acid, the mix process begins by starting the rinse/reclaim pumps and measuring the specific gravity of the rinse/reclaim acid (Tank R1). Depending on the measured specific gravity, the acid, rinse/reclaim, and/or water pumps will start. The specific gravity in the rinse/reclaim tank can vary from 1.000 – 1.200. Listed below are some situations that could be encountered on how the system may react. With a low R/R SG (Condition 1), the desired gravity can be prepared by adding R/R to the acid. There are typically limits on how much the pump flow can be reduced before the VFD faults or the flow becomes erratic. As R/R SG approaches the desired gravity (Condition 2), it may be necessary to add water to reduce the gravity, then add acid and R/R to achieve the desired value. If the R/R SG is above the desired value (Condition 3), then only water and rinse/reclaim are needed for mixing. For the higher gravities, only acid and R/R will be needed. Rinse/Reclaim cannot be used to prepare pasting acid. When paste acid is mixed, it is not necessary to check the R/R gravity before mixing, and only the water and acid pumps will operate.


Condition Desired SG R/R SG Acid Pump R/R Pump Water Pump
1 1.150 1.100 Yes Yes No
2 1.150 1.140 Yes Yes Yes
3 1.150 1.180 No Yes Yes
4 1.350 1.180 Yes Yes No
5 Pasting - Yes No Yes


After verifying the SG of the rinse/reclaim, the appropriate pumps will start. Flow sensors in all the feed lines plus the cooling water loop must verify the flow or the system will shutdown. The SG of the mixture will be checked, compared to the desired set point, then the pump speed varied accordingly to achieve the desired value. Normally the R/R flow is held constant, the flow of acid is varied. After a preselected time period, the SG is

結果 (中文) 1:

冲洗/回收酸 （洗水，关规格，清除酸） 将送交酸混合防滑通过一整套双面齿轮泵由变频器的控制。泵将安装在聚丙烯泵站在旁边的冲洗/回收罐，通常指定为二级结构内的坦克 R-1 酸混合室。系统通常包括 1 或 2 （R2 和 R3） 冲洗/回收罐。常见的头还提供连接所有的冲洗/回收舱。如果需要，可以在手动模式下用坦克 R2 和 R3 运行系统提供给的水泵。酸混合防滑将包括水箱 (~ 150 gal) 为协助混合低重力 (即 1.150 SG) 糊混合酸与 1.400 SG 酸的制备 （冲洗/回收不用于混合粘贴酸）。也可以在搅拌过程中添加硫酸钠溶液。此功能规范第 5.5 节讨论了设置和操作的硫酸钠溶液。混合的防滑通常配备 ¾"浓酸，用于冲洗/回收、 ¾" CPVC 连接为硫酸酯钠盐溶液和水线连接 1"1" CPVC 连接的 Kynar 法兰连接。供应商应验证该行提供的尺寸都有足够的 5.1.1 上面一节中列出的预期的流动速率。每个饲料的行应包括手动换向阀、 流量传感器、 电动阀门和回流量喷阀。应使用 Kynar 或其他类型的耐热管道上游的混合点。Kynar 静态混合管须安装混合点和换热器之间。退出之后换热器，密度单元格不得用于测量酸比重。总的流量或更通常滑流流经的密度单元格。电池组件应选择那些耐材料和硫酸中可能存在的杂质 （即，二氧化硫）。该系统还应包括手动重力检查台 （液体比重计的仪器），抽样检验和检查比重。酸混合防滑应包括规定自动刷新密度细胞在预选的时间间隔。每个饲料滑线应包括磁流量计。酸混合防滑将包括一个石墨块或陶瓷管换热器。石墨块或陶瓷管单位是首选。5.1.3 典型系统操作该系统须能制备中自动和手动模式的混合的酸。在自动模式下，该系统应不断监测所有混合酸储罐中的水平。当一个预选的水平发现坦克之一时，应启动混合的过程。安装过程中，初始泵速度将选择酸、 冲洗/回收和水泵。后的初始运行和/或安装，泵的转速将设置基于泵运行时，比重为周期的最后一个组合运行时的转速。对于电池填充酸混合过程开始开始冲洗/回收泵和测量比重的冲洗/回收酸 (坦克 R1)。根据实测的比重、 酸、 冲洗/回收或水水泵将开始。比重在冲洗/回收罐可以从 1.000-1.200 不同。下面列出的某些情况下，可能会遇到的系统可能会如何反应。与低 R/R SG (条件 1)，可通过 R/R 加入酸制备所需的重力。通常有多少泵流量的限制可以减少前 VFD 故障或使流动变得飘忽不定。当 R/R SG 接近所需的重力 (条件 2)，它可能有必要添加水，以减少重力，然后加酸和 R/R 来实现所需的值。如果 R/R SG 大于所需的值 (条件 3)，然后只水冲洗/回收需要和混合。更高的比重，将需要只有酸和 R/R。不能用于冲洗/回收准备粘贴酸。当粘贴酸混合时，它需要检查 R/R 重力混合之前，并不只有水和酸泵将操作。条件所需 SG 花子 SG 酸泵 R/R 泵水泵1 1.150 1.100 否是2 1.150 1.140 耶耶耶3 1.150 1.180 不是啊是啊4 1.350 1.180 否是5 粘贴-不是是经过验证的冲洗/回收 SG，适当的泵将开始了。在所有饲料的线加上冷却水回路流量传感器必须验证流程或系统将关闭。SG 的混合物将被检查，相比，所需的设置点，那么泵的速度各不相同，因此要实现所需的值。通常 R/R 流量保持不变，酸的流动多种多样的。预先选定的时间段后, SG 是

結果 (中文) 3:

清洗/回收酸（洗水、产酸、清除酸）将被传递到混酸橇由双套齿轮泵采用变频器的水泵将安装在聚丙烯泵站毗邻的清洗/回收槽控制手段，通常指定为酸混合室在二安全壳结构槽R-1。系统通常会有1或2以上（R2和R3）清洗/回收罐。还提供了一个共同的头连接所有的冲洗/回收箱。如果需要，系统可以运行在手动模式下用坦克R2和/或R3提供给水泵。的混酸橇将包括一个水箱（~ 150加仑）协助低重力的混合（即1.150 SG）酸和1.400酸膏混合制备的SG（冲洗/回收不是用来混合粘贴酸）。在混合过程中也可以添加硫酸钠溶液。设置和硫酸钠溶液的操作是在第5.5节讨论了这个功能规格。混合打滑通常配有浓酸一¾“Kynar法兰连接，1½”冲洗/ CPVC连接回收，一¾”CPVC连接硫酸钠溶液和1½”为水路连接。供应商应确认线的大小为预期的流动率列在第5.1.1条以上是足够的。每个进线应包括一个手动阀、流量传感器、执行器、阀、倒流防止器阀。聚偏氟乙烯或其他类型的耐热管道应采用混合点上游。一个的Kynar静态混合管应安装混合点和换热器之间。退出换热器后，用密度单元测量酸比重。总流量或更典型的是一个滑流通过密度单元。应选择对可能存在于硫酸中的材料和杂质（即二氧化硫）的细胞成分进行筛选。该系统还应包括人工重力检测站（W /比重计）取样和检查比重。酸混合打滑应包括规定自动在预定时间间隔冲洗细胞密度。每一条进料线的进料线应包括磁流量计。酸混合防滑器将包括石墨块或陶瓷管换热器。石墨块或陶瓷管单元是首选。5.1.3典型操作系统该系统应能够在自动和手动模式中的混合酸的制备。在自动模式下，系统应持续监控所有混合酸储罐的液位。当一个预先选定的水平是在一辆坦克的检测，混合过程应启动。在安装过程中，初始泵的速度将选择的酸，冲洗/回收，和水泵。在初始运行和/或安装，泵的速度将设置的基础上的速度，泵运行在最后一个混合周期时，为特定的重力运行。电池充满酸，混合过程开始启动冲洗/回收泵和测量冲洗/比重回收酸（坦克R1）。根据测得的比重，酸，冲洗/回收，和/或水泵将开始。在冲洗/回收罐的比重可能会有所不同，从1 - 1.200。下面列出的是一些可能会遇到的系统如何作出反应的情况。在低R / R SG（条件1），所需的重力可以通过添加R / R的酸的制备。通常有限制多少泵流量可减少变频器故障前或流动变得不稳定。R / R SG方法所需的重力（条件2），可能需要添加水降低重心，然后加酸和R / R达到期望值。如果R / R SG超过要求值（条件3），那么只有水和冲洗/回收所需的混合。对于更高的比重，只有酸和R / R将需要。冲洗/回收不能用于制备粘贴酸。当糊状酸混合时，没有必要检查混合前的R / R重力，只有水和酸泵将运行。条件期望的SG R / R SG酸泵的R / R泵水泵1.150 1.100 1是的是的是的1.150 1.140 2是的是的是的1.150 1.180 3不是的1.350 1.180 4是的是的是的5粘贴-是的没有是的验证的清洗/ SG回收后，相应的泵将开始。在所有的进料线加冷却水回路的流量传感器必须验证流量或系统将关闭。这种混合物的SG将被检查，比较理想的设置点，然后水泵的转速相应变化达到预期值。正常的R / R流是保持不变的，酸的流动是变化的。一个预定的时间后，SG是