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| 船(chuan)用柴油機噴(pēn)油泵用SMH80R42E6.7W21三螺(luó)杆泵配5.5kw-4電機(jī) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 發布時間:2015-1-7 9:19:38 點(diǎn)擊次數: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
SM三螺(luo)杆泵(船用柴(chai)油機噴油泵(beng))結構:三螺杆(gan)泵是利用螺(luó)杆的回轉來(lái)吸排液體的(de)。中間螺杆為(wei)主動螺杆,由(you)原動機帶動(dòng)回轉,兩邊的(de)螺杆為從動(dong)螺杆,随主動(dong)螺杆作反向(xiang)旋轉。主、從動(dong)螺 杆的螺紋(wén)均為雙頭螺(luó)紋。三螺杆泵(beng)是螺杆式式(shì)容積泵。在三(san)螺矸泵中,由(you)于主螺杆與(yu)從動螺杆上(shang)螺旋槽相互(hù)齧合及它們(men)與襯套三孔(kong)内表面的配(pèi)合,得以在泵(bèng)的進口與出(chū)口之間形成(cheng)數級動密封(feng)室,這些動密(mi)封室将不斷(duan)把液體由泵(beng)進口軸向移(yi)動到泵出 口(kǒu),并使所輸送(sòng)液體逐級升(sheng)壓。從而形成(chéng)一個連續、平(ping)穩、軸向移動(dong)的壓力液體(ti)。三螺杆泵所(suǒ)輸送液體為(wéi)不含固體顆(kē)粒,無腐蝕性(xing)油類及類似(si)油的潤滑性(xìng)液體,粘度1.2~100oE(3.0~760cst),高(gāo)粘度液體亦(yì)可通過加溫(wen)降粘後輸送(sòng),其溫度不超(chao)過150oC。Three screw pump pump structure: three screw pump is the use of screw rotary to absorb liquid.The middle screw to active screw, the prime mover, on both sides of the screw is driven screw, with the active screw do reverse rotation.Lord, driven screw thread are double thread.Three screw pump is screw type positive displacement pump.In three screw pump of coal and gangue, the spiral groove on the main screw and driven screw pitch and they cooperate with three hole on the surface of the bushing, formed between in the import and export of the pump number level dynamic seal chamber, the dynamic seal chamber will continue to move liquids from pump axial pump out of the mouth, and make the conveying liquid booster step by step.To form a continuous, smooth, axial movement of liquid pressure.Three screw pump for conveying liquid not containing solid particles, non-corrosive oil and similar oil lubrication and liquid viscosity of 1.2 ~ 100 oe (3.0 ~ 760 CST), is high viscosity liquids through the heating viscosity after delivery, the temperature does not exceed 150 oc. SMH三螺杆泵(bèng)工作原理: 由(yóu)于各螺杆的(de)相互齧合以(yi)及螺杆與襯(chen)筒内壁的緊(jin)密配合,在泵(beng)的吸入口和(hé)排出口之間(jian),就會被分隔(gé)成一個或多(duō)個密封空間(jian)。随着螺杆的(de)轉動和齧合(hé),這些密封空(kōng)間在泵的吸(xī)入端不斷形(xíng)成,将吸入室(shi)中的液體封(fēng)入其中,并自(zi)吸入室沿螺(luó)杆軸向連續(xù)地推移至排(pái)出端,将封閉(bì)在 各空間中(zhōng)的液體不斷(duàn)排出,猶如一(yī)螺母在螺紋(wen)回轉時被不(bú)斷向前推進(jin)的情形那樣(yàng),其中螺紋圈(quān)數看做液體(ti),當螺釘旋轉(zhuǎn)時螺紋在轉(zhuǎn)動時就相當(dang)于液體在螺(luo)杆泵裡面的(de)情形,這就是(shì)螺杆泵的基(jī)本工作原理(lǐ)。螺杆與殼體(ti)之間的密封(feng)面是一個空(kong)間曲面。在這(zhè)個曲面上存(cún)在着諸如ab或(huò)de之類的非密(mì)封區,并且與(yu)螺杆的凹槽(cáo)部分形成許(xǔ)多三角形的(de)缺口abc、def。這些三(san)角形 的缺口(kǒu)構成液體的(de)通道,使主動(dong)螺杆凹槽A與(yǔ)從動螺杆上(shàng)的凹槽B、C相連(lián)通。而凹槽B、C又(yòu)沿着自己的(de)螺線繞向背(bèi)面, 并分别和(he)背面的凹槽(cao)D、E相連通。由于(yú)在槽D、E與槽F(它(ta)屬于另一頭(tóu)螺線)相銜接(jiē)的密封面上(shang),也存在着類(lei)似于正面的(de)三角形缺口(kǒu)a’b’c’,所以D、F、E也将相(xiang)通。這樣,凹槽(cao)ABCDEA也就組成一(yī)個“∞” 形的密封(feng)空間(如采用(yòng)單頭螺紋,則(ze)凹槽将順軸(zhóu)向盤饒螺杆(gan),将吸排口貫(guan)通,無法形成(cheng)密封)。不難想(xiǎng)象,在這樣的(de)螺杆 上,将形(xing)成許多個獨(du)立的“∞”形密封(fēng)空間,每一個(ge)密封空間所(suo)占有的軸向(xiàng)長度恰好等(děng)于累杆的導(dǎo)程t。因此,為了(le)使螺杆能吸(xi)、排油口分隔(ge)開來,螺杆的(de)螺紋段的長(zhǎng)度至少要大(dà)于一個導程(cheng)。Due to the mutual engagement of each screw and screw and the close coordination of the liner wall, between the inlet and outlet of the pump, can be divided into one or more of the sealed space.With the rotation of the screw and the meshing, the sealed space in pump suction side form unceasingly, the liquid from the suction chamber seal in among them, and the suction chamber along the screw axial continuously goes on to the discharge end, will be closed in the space of the liquid discharge, like a nut in screw rotation being constantly move forward, the screw thread turns as liquid, when screw rotating screw rotation is equivalent to the liquid in the inside of the screw pump, this is the basic work principle of screw pump.The sealing surface between screw and shell is a space curved surface.Exist on the surface of the sealing section, such as ab or DE and screw groove part of the form many the gap of the triangle ABC, def.These triangular gap formation fluid channels, make active screw groove with A driven screw groove on the connected to B and C.And groove B, C and along their spiral around to the back, and, respectively, and on the back of the groove connected to D and E.Due to the tank D, E and F (it belongs to another head spiral) of corresponding seal surface, there are also similar to the positive triangle gap a 'b' c ', so D, F, E will also is same.So, grooves ABCDEA on forming a "up" form of the sealed space (such as using single thread, axial disc groove will arrange spare screw, connecting the suction PaiKou, unable to form a seal).It is not hard to imagine that in this kind of screw, will form a number of independent "up" form sealed space, each of the sealed space occupied the axial length equals the tired stem lead t.Therefore, in order to make the screw suction and discharge of oil can be separated, the length of the screw thread of at least than a lead. 螺杆泵(船用(yòng)柴油機噴油(you)泵)有以下優(yōu)點:1)壓力和流(liu)量範圍寬闊(kuo)。壓力約在3.4-340千(qian)克力/cm 2,流量可(ke)達18600cm3/分;2)運送液(yè)體的種類和(he)粘度範圍寬(kuan)廣;3)因為泵内(nei)的回轉部件(jian)慣性力較低(dī),故可使用很(hěn)高的轉速;4)吸(xi)入性能好,具(ju)有自吸能力(lì);5)流量均勻連(lián)續,振動小,噪(zào)音低;6)與其它(ta)回轉泵相比(bǐ),對進入的氣(qì)體和污物不(bú)太敏感; 7)結構(gou)堅實,安裝保(bǎo)養容易。rate of up to 18600 cubic cm/min;2) wide range of delivery and type of liquid viscosity;3) because the rotary inertia force component inside the pump is low, so it can be used in high speed;4) inhalation can good, have since 螺杆(gǎn)泵的缺點是(shì),螺杆的加工(gōng)和裝配要求(qiu)較高;泵的性(xìng)能對液體的(de)粘度變化比(bǐ)較敏感。Screw pump has the following advantages: 1) the wide range of pressure and flow.Pressure about 3.4-340 kg/cm 2, flow Suction capacity;5) flow uniformly continuous, little vibration, low noise;6) compared with other rotary pump, less sensitive to enter gas and dirt;7) solid structure, installation and maintenance easy.The screw pump's disadvantage is that the screw processing and assembling the demand is higher;The performance of the pump is more sensitive to the viscosity of the liquid change. 螺杆(gan)泵具有以下(xia)優點:1.和離心(xīn)泵相比螺杆(gan)泵無需安裝(zhuang)閥們流量是(shì)穩定的線性(xìng)流動;2. 和柱塞(sai)泵相比螺杆(gǎn)泵具有自吸(xī)能力強、吸入(rù)高度強;3.和隔(ge)膜泵相比螺(luo)杆泵可輸送(sòng)各種混合雜(za)質含有氣體(tǐ)及固體顆粒(li)或纖維的介(jie)質,也可輸送(sòng)各種腐蝕性(xìng)物質;4. 和齒輪(lún)相比,螺杆泵(bèng)可輸送高粘(zhan)度的物質;5.和(he)柱塞泵,隔膜(mó)泵及齒輪泵(beng)不同的是,螺(luó)杆泵可用于(yú)藥劑填充和(he)計量.Screw pump has the following advantages: 1. Compared with screw pump and centrifugal pump doesn't need to install the valve flow is stable linear flow;2. Compared with those of screw pump plunger pump self-priming capability is strong, strong suction height;3. Compared with the diaphragm pump screw pump can transport all kinds of gas and solid particle mixing impurities or fiber medium, also can transport all kinds of corrosive substance;4. Compared with gear, screw pump can transport high viscosity material;5. And plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.
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