主導產品
  • 商品名稱: VLY長軸液下泵
  • 商品編號: 918
  • 上架時間: 2015-01-19
  • 瀏覽次數: 303

應用范圍:

VLY系列泵為單級、單吸、徑向剖分的長軸液下泵。適合輸送各種清潔的、無顆粒的或含有一定顆粒的污水、泥漿以及有腐蝕性的液體。該系列泵主要用于污水處理、電廠、煉鋼廠、煉油廠、石油化工、煤化工等行業。

性能參數:

流量 Q :2~400 m3/h

揚程 H :5~200m

壓力 p :≤2.5MPa

溫度 t :-20℃~+120℃

型號說明:  

VLY80-200-L

VLY — 泵系列代號(標配閉式葉輪,如果選用開式葉輪系列代號為VLYK)

80 — 泵排出口直徑(mm)

200 — 葉輪名義直徑(mm)

L — 插入深度(m)

結構特點:

該系列泵具有很高的安全可靠性,泵運轉穩定,使用壽命長,并且維修方便簡單,備品備件種類少,具有很高的通用性。

泵體為徑向剖分結構,從法蘭名義口徑80mm以上的泵體設計成雙蝸殼結構,減少由水力作用引起的徑向力和泵的振動。

充分考慮了葉輪及導葉的抗磨、耐腐蝕性,使葉輪等易損件壽命提高;葉輪和導葉體為多級,適應不同揚程要求。

葉輪采用平衡孔平衡軸向力,葉輪前后蓋板均設有可更換的特殊堰堤型密封環,?;ひ堵旨氨錳?。有效防止泵?;笤又食戀碇撩芊饣芳湎督詿?,極大提高密封環和葉輪的使用壽命。

泵葉輪標準配置為單級、單吸葉輪。優秀的水力模型,具有較高的效率。特殊要求可采用多級葉輪。

泵軸采用可靠的接軸方式,多點支撐結構,確保泵可以在非??量痰墓た鎏跫縷轎仍誦?。最大插入深度可達10m。

軸可由護管?;?,防止軸的磨損或腐蝕;當輸送清水時,可取消護管。

泵進口裝有濾網,開孔大小適當,既有效地防止大顆粒雜質進入泵內損壞水泵,同時又保證了凈進水面積,最大限度減少進口損失,提高了泵效率。

泵葉輪和泵體在液面以下,泵啟動時,葉輪浸沒在液體中,不存在排氣抽空和啟動問題。

由于有單獨的出液管,延軸方向沒有加壓的介質滲漏,如果在開式系統中使用,不需要軸封。對于易揮發性、有毒有害性液體以及在閉式系統中使用,可安裝機械密封或填料密封。

轉子部件由滾動軸承和滑動軸承支承,可進行軸向調節。油脂潤滑的滾動軸承安裝于底板之上。采用角接觸球軸承,采用軸承套安裝在軸上,方便轉子軸向位置的調整,采用潤滑脂潤滑軸承,結構簡單、安全可靠。

滑動軸承采用自潤滑或外潤滑結構。自潤滑結構(從泵出口接出泵送介質沖洗各個滑動軸承,潤滑軸承,帶走摩擦副產生的熱量)適合輸送各種清潔的,無顆粒的液體。外潤滑結構(從外界引入清潔的有壓沖洗液沖洗滑動軸承,潤滑軸承,帶走摩擦副產生的熱量,同時避免顆?;蛟又式脛岢?,保證軸承正常運行)適合輸送各種漿料,含顆粒、雜質的液體。

泵的轉向:

從電機端俯視,泵為順時針方向旋轉。

Application Range:

VLY series of pumps are single stage and single suction with radial split long shaft submerged pumps. The pumps are suitable for handling clean liquid without solids, or sewage water with solids, slurry and corrosive liquid. This series of pumps are mainly applied for industries like sewage treatment, power plant, steel-making plant, oil refineries, petro chemicals, coal industries etc.

Performance:

Capacity     Q: 2 to 400 m3/h  

Head        H: 5 to 200 m

Pressure      p: ≤2.5MPa

Temperature   t: -20 to +120

Description of pump type:

VLY80-200-L

VLY — Pump series (standard close impellor, VLYK for open impellor)

80 — Pump discharge diameter (mm)

200 — Impellor nominal diameter (mm)

L — Submerged length (m)

Construction Features:

Series of pumps are highly safe, reliable and stable in operation, and have long operation life. The maintenance is easy, and has less categories of spare parts with wide exchangeability.

The pump casing is radial split, and is double volute casing design for flange nominal size 80mm and above so as to reduce radial force and pump vibration caused by hydraulic acting.

Fully considered anti-wearing and corrosion resistance for impellor and diffuser so that the life of impellor and other easy worn parts is prolonged. The impellor and diffuser are multi-stage design which can meet various requirement in head.

· The axial force is balanced through balancing hole for impellor. The front and rare cover of impellor are equipped with exchangeable special ladder type seals ring to protect the impellor and pump casing. This effectively avoided foreign matters settling into the seals ring inlet gaps after pump stopping. So the operation life of seals ring and impellor are greatly extended.

Pump shaft is designed for reliable extension-connection type with multi-supporting point, which guaranteed stable operation under critical services. The maximum submergence length is 10m.

The pump shaft can be protected by tube to avoid wearing or corrosion. And the protection tube is unnecessary when clean water is handled.

Pump suction is installed filter with proper mesh size which effectively stopped big solids entering and damaging the pump, at the same time ensured net inlet area and reduced suction loss to a maximum degree, the pump efficiency is increased either.

Pump impellor and casing is submerged under water, so there will not be any problem of draining and venting when pump is starting.

Separate discharge pipe of pump has no pressurized liquid leakage in shaft direction. And if used in open type of system, the shaft seal is no necessary; If used in close type of system as well as easy volatile or toxic liquid, mechanical seal or packing seal will be available.

Rotating parts can be axially adjusted and are supported with rolling bearings and sliding bearings. The grease lubricated bearings are fitted on the sole plate.

The sliding bearings are self-lubricated or outer lubricated. The self-lubrication structure (flush and lubricate each bearing with pumped liquid from pump discharge, and then take away the heat produced by friction pair) is suitable to transfer clean liquid without solid. The outer lubrication structure (flush and lubricate each bearing with outer sourcing clean and pressurized liquid, and then take away heat produced by friction pair, at the same time stop solids or foreign matters from entering the bearings to guarantee the normal operation) suitable for handling pulp liquids with solids or foreign matters.

Pump Rotation:

The pump is in clock wise direction viewed from driven end.

泵型譜

Performance Range

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