真空脫氣機組

CMM-6/7機器用於以下目的：

1. 用於加熱、泵輸送和處理電氣設備中用作絕緣體或冷卻器的油（如變壓器、OLTC、變壓器套管、高壓開關）。油處理涉及去除顆粒物、氣體和水。
2. 清除變壓器油箱中的空氣和氣體，如果這些氣體在維修或保養過程中進入變壓器。

裝置的處理能力從每小時3000~7000升不等，取決於所選擇的操作模式。

機器設計

CMM-6/7被安裝在一個機箱內，有效的裝有機器的所有組件。

• 一圓柱體的腔體，空氣從這個腔體中被抽走，以降低壓力並產生真空。
• 從真空室排除空氣的組件（增壓泵和背壓泵。
• 油泵。
• 油加熱器。
• 從油中去除顆粒的組件（粗過濾器和細過濾器）。       
• 控制系統（控制按鈕和燈）。

機器的操作

CMM-6/7機器是多功能的，也就是說，它有幾種操作模式。
最簡單的模式是抽油。在這種模式下，只有過濾器和油泵的參與。
第二種模式可以加熱油並去除顆粒物。首先，輸油泵將油輸送到加熱器。然後油通過過濾器。最後，過濾後的熱油被油泵送到設備的出口。
在脫氣模式下，油被輸油泵送通過加熱器，其溫度被提高到50-55°С，然後進入過濾器部分。從過濾器出來後，油進入金屬腔體，在那裡真空泵將空氣抽走，產生極低的壓力。該金屬腔室內添加了特殊的填充物，這對於增加油的表面積是必要的。當油品沿填充器通過時，真空和熱量從油中提取水和空氣。
在抽真空模式下，機器通過軟管連接到外部設備，然後真空泵從該設備中抽走空氣。

操作員的參與

操作者參與CMM-6/7操作程度取決於機器的自動化程度，由客戶在下訂單時選擇（有全自動和自動化輔助選項）。一般來說，操作員啟動機器並選擇所需的操作模式。
在基本版本中，操作者還可以通過轉動手動閥門來設置和調整加工速度。在全自動版本的情況下，處理速度由操作者在控制面板上選擇，並自動保持，沒有進一步的人為干預。

安全性

CMM-6/7的安全性是通過控制物理油處理工藝參數和特殊保護措施來保證的：

• 防止過電流和過載的電氣保護。
• 防止因軟管破裂或油品過熱造成的漏油。
• 對可能的過程控制設備故障的保護。
• 對供電電纜斷裂的保護。

如果某一保護裝置跳閘，系統會開啟一個警報示警，以通知操作人員裝置故障。如果運轉過程各項指標超過的限制值，控制系統亦會安全地停止機器。

本機為誰製造

CMM-6/7是為變壓器（和其它充滿礦物油的電氣設備）組裝、服務和維修公司設計的。

優勢

• 具多功能性( 脫氣、真空熱油乾燥 )。
• 不需要使用吸附劑進行變壓器油乾燥。
• 沒有空氣污染，沒有需要處理或儲存的廢水。
• 操作和維修簡單。
• 即使在一個處理週期後也能獲得最佳的油質。
• 低功率要求。
• 低噪音要求。

* Note –  Initial oil quality parameters:

• gas content: below 10.5% vol
• water content: below 0.005% (50 g/t)
• temperature: above 0 ºС.

**All equipment sold in the USA is designed to operate on 60 Hz AC Power

The CMM-6/7 machine is used for the following purposes:

1. heating, pumping and treatment of oil used as insulators or coolers in electrical equipment (transformers, OLTC , transformer bushings, high voltage switches etc). The oil treatment includes removal of particulate matter, gas and water.
2. removal of air and gas from transformer tanks, if the gases enter the transformer in the course of repairs or servicing.

The processing capacity of the machine is 3000 to 7000 liters per hour and depends on the selected mode of operation.

Design of the machine

The CMM-6/7 is built in a container. The container houses all the components of the machine:

• a cylindrical chamber, from which air is removed to reduce pressure and create vacuum;
• the components removing the air from the vacuum chamber (the booster and backing pumps);
• oil pumps;
• an oil heater;
• components that remove particulate matter from the oil (coarse and fine filters;
• a control system (control buttons and lights).

Operation of the machine

The CMM-6/7 machine is multifunctional, i.e. it has several operation modes.

The simplest mode is oil pumping. Only the filters and the pumps are engaged in this mode.

The second mode allows to heat the oil and remove particulate matter. First, the pump transports the oil to the heater. Then the oil passes through the filter. In the end, filtered warm oil is pumped to the outlet of the unit.

In the degassing mode the oil is pumped through the heater, where its temperature is increased to 50-55°С, then it goes into the filter section. From the filter, the oil goes into the metal chamber, where the vacuum pumps remove the air and the pressure is low. The chamber is equipped with special filler, which is necessary to increase the surface area of the oil. As the oil passes along the filler, the vacuum and heat extract water and gas from the oil.

In the evacuation mode the machine is connected to external equipment by a hose, then the vacuum pumps remove air from that equipment.

Operator involvement

The degree of operator involvement in the operation of the CMM-6/7 varies depending on the automation of the machine, which is chosen by the client at the time of order placement (there are fully automatic and automation assisted options). In general, the operator starts the machine and selects the required mode of operation.

In the basic version, the operator also sets and adjusts the processing rate by turning manual valves. In the case of a fully automatic version, the processing rate is selected by the operator on the control panel  and is maintained automatically with no further human interference.

Safety

The safety of the CMM-6/7 is ensured by control of the physical oil treatment process parameters and special protection measures:

• electrical protection from overcurrent and overloads;
• protection against oil leaks due to hose rupture or overheating of oil;
• protection of possible process control device failures;
• protection against power supply cable break.

If a protection trips, the system turns on a siren and notifies the operator of the failure. The control system safely stops the machine if process parameters exceed limits.

Who this machine is designed for

The CMM-6/7 is built for transformer manufacturers, as well as service and repair facilities for equipment which contains insulation oil.

Advantages

• versatility;
• no need to use adsorbents for transformer oil drying;
• no air pollution and no waste streams to dispose of or store;
• simple operation and servicing;
• best oil quality even after one processing cycle;
• low power requirements;
• low noise levels.

* Note –  Initial oil quality parameters:

• gas content: below 10.5% vol
• water content: below 0.005% (50 g/t)
• temperature: above 0 ºС.

**All equipment sold in the USA is designed to operate on 60 Hz AC Power