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●焊接三螺杆泵(螺杆输油泵)特点
1. 三螺杆泵是一种容积式泵,它是利用相互啮合的螺杆的旋转把液体排送出去的办法来进行输送的,其压力没有脉动,压力取决于该泵所串入的管路系统的阻圧损失或总负载。
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 系列基础上派生出来的双层加热泵体结构,其泵体是用钢管和钢板焊接而成的。在外层加热套的水平对称位置焊接一对蒸汽进出管,蒸汽进入加热套内作为传输液体,对所输送的介质进行加热及预热(蒸汽吹扫温度≤ 280 ℃)。该泵主要用于石油、化工、炼油厂、油库、输油站等行业,输送高粘度,流动性差的液体,如:重油,渣油,沥青,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. 性能参数范围 :Performance
parameters: 流量 Q : 1-318m 3 /h 压力 P : 0-4.0MPa 介质最高粘度:υ≤ 10000mm 2 /s 介质最高温度: T ≤ 280 ℃( SNH---E15Y ≤ 200 ℃ , SNH---E15TG ≤ 280 ℃) 转速: n ≤ 1450r/min 1. 焊接三螺杆泵(螺杆输油泵)系列
系列 | 主要特征 | 最大流量 [l/min] | 规格范围 | 最大排出压力 [MPa] | 转速范围 [r/min] | SN-E…Y | 低压,单吸,轴向力液压平衡 | 5300 | 40 ~ 5300 | 4 . 0 | ≤ 1450 | 2. 焊接三螺杆泵(螺杆输油泵)型式 3.焊接三螺杆泵(螺杆输油泵)螺旋角 规格 | 40 80 120 210 280 440 660 940 1300 1700 2200 2900 3600 5300 | 主杆螺旋角 | 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. 焊接三螺杆泵(螺杆输油泵)结构特性及轴承轴封 符号 | 结构说明 | 适用范围 | E6.7 | 外置滚动轴承,用润滑脂润滑;机械密封
The outer rolling bearing, grease lubrication; Mechanical seal
| 介质润滑性较差。工作温度: T ≤ 150 ℃ | E15 | 外置滚动轴承,用润滑脂润滑;金属波纹管密封
The outer rolling bearing, grease lubrication; Metal bellows seal
| 介质润滑性差。工作温度: T ≤ 200 ℃ | E15TG | 外置滚动轴承,用润滑脂润滑,轴承处有冷却装置,远离介质。
金属波纹管密封Outer rolling bearing, grease lubrication, bearing a cooling device,
away from the media.Metal bellows seal
| 介质润滑性差。工作温度: T ≤ 280 ℃ |
5. 焊接三螺杆泵(螺杆输油泵)泵体 符号 | 说明 | 备注 | Y | 双层泵体可用热蒸汽或热传输液体作载体对介质进行加热。 适用于输送高粘度流动性差的液体 | 泵安装图与标准型不同 |
6. 焊接三螺杆泵(螺杆输油泵)常用材料组合 泵体:钢焊结构( 20 #) | 衬套:铸锡青铜 | 螺杆: 16MnCrS5 |
7.
焊接三螺杆泵(螺杆输油泵)选型要点:
1. 首先应根据油品的粘度选择适当的泵转速,以保证泵的 NPSH 能满足用户的实际吸入条件。2. 介质粘度 υ>
10000mm 2 /s 时请与我公司联系,我公司帮助用户选泵。 3. 从性能表中选定泵的规格及相应粘度下的压力流量后, 可查到泵的轴功率 N ,该轴功率再加上一定的功率储备后,作为选配电机的依据,一般电机功率
N m 不小于泵轴功率 N 乘以功率储备系数 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 |
定货须知: 由于
SNH---E…Y 型泵,必须根据使用条件,确定泵的规格,密封型号,材料,电机等,故定货时请写明:流量,压力,液体的粘度,温度等。
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. 对电机有特殊要求的还需写明:防爆等级,防潮等级,电压,工作环境等。
, also need to specify the special requirement of motor, explosion-proof grade,
moisture level, voltage, the work environment.
产品:机油泵 润滑油泵 喷油泵 输油三螺杆泵 扫仓泵 原油输送泵 重油燃油泵 沥青泵 技术支持: 齿轮泵(一) 齿轮泵(二) 螺杆泵(一) 螺杆泵(二) |