●焊接三螺桿泵(螺桿輸油泵)特點(diǎn)
   1. 三螺桿泵是一種容積式泵，它是利用相互嚙合的螺桿的旋轉(zhuǎn)把液體排送出去的辦法來(lái)進(jìn)行輸送的，其壓力沒(méi)有脈動(dòng)，壓力取決于該泵所串入的管路系統(tǒng)的阻圧損失或總負(fù)載。 Three screw pump is a positive displacement pump, it makes use of pitch screw rotating liquid row out of the way to delivery, no pulse, its pressure pressure depends on the pump series with the resistance 圧 loss or total load of pipeline system.
   2.SNH---E…Y 型泵是我公司在 SN 系列基礎(chǔ)上派生出來(lái)的雙層加熱泵體結(jié)構(gòu)，其泵體是用鋼管和鋼板焊接而成的。在外層加熱套的水平對(duì)稱位置焊接一對(duì)蒸汽進(jìn)出管，蒸汽進(jìn)入加熱套內(nèi)作為傳輸液體，對(duì)所輸送的介質(zhì)進(jìn)行加熱及預(yù)熱（蒸汽吹掃溫度≤ 280 ℃）。該泵主要用于石油、化工、煉油廠、油庫(kù)、輸油站等行業(yè)，輸送高粘度，流動(dòng)性差的液體，如：重油，渣油，瀝青，原油等。 . SNH - E...Y type pump is derived based on SN series double heat pump body structure, the pump body is made of steel tube and steel plate welded together.At the levels of outer heating jacket symmetric position of a pair of in and out of the steam pipe, steam into the heating jacket as a transport liquid, heating on the transmission medium and preheating (purge steam temperature of 280 ℃ or less).This pump is mainly used in petroleum, chemical industry, refinery, oil depot, oil station, etc, high viscosity, illiquid liquid, such as heavy oil, residual oil, bitumen, crude oil, etc.
   性能參數(shù)范圍 :Performance parameters:
   流量 Q ： 1-318m 3 /h
   壓力 P ： 0-4.0MPa
   介質(zhì)最高粘度：υ≤ 10000mm 2 /s
   介質(zhì)最高溫度： T ≤ 280 ℃（ SNH---E15Y ≤ 200 ℃ , SNH---E15TG ≤ 280 ℃）
   轉(zhuǎn)速： n ≤ 1450r/min
   1. 焊接三螺桿泵(螺桿輸油泵)系列

   2. 焊接三螺桿泵(螺桿輸油泵)型式

H ：臥式地腳式安裝泵 S ：立式底腳安裝

   3.焊接三螺桿泵(螺桿輸油泵)螺旋角

規(guī)格	40 80 120 210 280 440 660 940 1300 1700 2200 2900 3600 5300
主桿螺旋角	38 36 42 40 43 40 40 42 38 42 42 40 46 46 46 42 46 46 46 46 44 46 42 46 46 •  46 54 54 54 52 46 50 46 54 54 51 54 54 54

    4. 焊接三螺桿泵(螺桿輸油泵)結(jié)構(gòu)特性及軸承軸封

符號(hào)	結(jié)構(gòu)說(shuō)明	適用范圍
E6.7	外置滾動(dòng)軸承，用潤(rùn)滑脂潤(rùn)滑；機(jī)械密封 The outer rolling bearing, grease lubrication; Mechanical seal	介質(zhì)潤(rùn)滑性較差。工作溫度： T ≤ 150 ℃
E15	外置滾動(dòng)軸承，用潤(rùn)滑脂潤(rùn)滑；金屬波紋管密封 The outer rolling bearing, grease lubrication; Metal bellows seal	介質(zhì)潤(rùn)滑性差。工作溫度： T ≤ 200 ℃
E15TG	外置滾動(dòng)軸承，用潤(rùn)滑脂潤(rùn)滑，軸承處有冷卻裝置，遠(yuǎn)離介質(zhì)。 金屬波紋管密封Outer rolling bearing, grease lubrication, bearing a cooling device, away from the media.Metal bellows seal	介質(zhì)潤(rùn)滑性差。工作溫度： T ≤ 280 ℃

    5. 焊接三螺桿泵(螺桿輸油泵)泵體

符號(hào)	說(shuō)明	備注
Y	雙層泵體可用熱蒸汽或熱傳輸液體作載體對(duì)介質(zhì)進(jìn)行加熱。 適用于輸送高粘度流動(dòng)性差的液體	泵安裝圖與標(biāo)準(zhǔn)型不同

    6. 焊接三螺桿泵(螺桿輸油泵)常用材料組合

泵體：鋼焊結(jié)構(gòu)（ 20 ＃）

襯套：鑄錫青銅

螺桿： 16MnCrS5

   7. 焊接三螺桿泵(螺桿輸油泵)選型要點(diǎn)：

   1. 首先應(yīng)根據(jù)油品的粘度選擇適當(dāng)?shù)谋棉D(zhuǎn)速，以保證泵的 NPSH 能滿足用戶的實(shí)際吸入條件。2. 介質(zhì)粘度 υ＞ 10000mm 2 /s 時(shí)請(qǐng)與我公司聯(lián)系，我公司幫助用戶選泵。 3. 從性能表中選定泵的規(guī)格及相應(yīng)粘度下的壓力流量后， 可查到泵的軸功率 N ，該軸功率再加上一定的功率儲(chǔ)備后，作為選配電機(jī)的依據(jù)，一般電機(jī)功率 N m 不小于泵軸功率 N 乘以功率儲(chǔ)備系數(shù) K 所得的值即： N m ≥ K · N 。 K 值由下表查得。First select the appropriate pump speed should be based on the viscosity of the product, to ensure the pump NPSH can satisfy the user's actual suction conditions.2. The medium viscosity nu > 10000 mm 2 / s, please contact with our company, our company help the user to choose the pump.3. Selected from a performance table of the specifications of the pump and the corresponding viscosity under pressure flow, pump shaft power can be N, the shaft power plus the power of a certain reserve, as a basis for the matching machine, general motors power N m is not less than the pump shaft power N times the power reserve coefficient K value: N m p k. N.K value from the table below to check.

N(KW)	K
N ≤ 5	1.25
5 ＜ N ≤ 10	1.2
10 ＜ N ≤ 50	1.15
N ＞ 50	1.1

定貨須知：
   •  由于 SNH---E…Y 型泵，必須根據(jù)使用條件，確定泵的規(guī)格，密封型號(hào)，材料，電機(jī)等，故定貨時(shí)請(qǐng)寫明：流量，壓力，液體的粘度，溫度等。 Because the SNH - E... Y type pump must be determined according to the conditions of use, the specifications of the pump, seal type, material, machine, etc., so the order, please specify: flow, pressure, liquid viscosity, temperature, etc.
    •  對(duì)電機(jī)有特殊要求的還需寫明：防爆等級(jí)，防潮等級(jí)，電壓，工作環(huán)境等。
, also need to specify the special requirement of motor, explosion-proof grade, moisture level, voltage, the work environment.

產(chǎn)品：機(jī)油泵 潤(rùn)滑油泵 噴油泵 輸油三螺桿泵 掃倉(cāng)泵 原油輸送泵 重油燃油泵 瀝青泵
技術(shù)支持:
齒輪泵(一)
齒輪泵(二)
螺桿泵(一)
螺桿泵(二)