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衛(wèi)生級(jí)螺桿泵(螺桿泵10大品牌）

KAYSEN凱森衛(wèi)生級(jí)螺桿泵概述

三螺桿泵是依靠泵體與螺桿所形成，當(dāng)主動(dòng)螺桿轉(zhuǎn)動(dòng)時(shí)，帶動(dòng)與其嚙合的從動(dòng)螺桿一起轉(zhuǎn)動(dòng)，吸入腔一端的螺桿嚙合空間容積逐漸增大，壓力降低。

液體在壓差作用下進(jìn)入嚙合空間容積。當(dāng)容積增至*而形成一個(gè)密封腔時(shí)，液體就在一個(gè)個(gè)密封腔內(nèi)連續(xù)地沿軸向移動(dòng)，直至排出腔一端。這時(shí)排出腔一端的螺桿嚙合空間容積逐漸縮小，而將液體排出。三螺桿泵的工作原理與齒輪泵相似，只是在結(jié)構(gòu)上用螺桿取代了齒輪。表為各種螺桿泵的特點(diǎn)和應(yīng)用范圍。三螺桿泵的流量和壓力脈沖很小，噪聲和振動(dòng)小，有自吸能力，但螺桿加工較困難。泵有單吸式和雙吸式兩種結(jié)構(gòu),但單螺桿泵僅有單吸式。三螺桿泵必須配帶安全閥(單螺桿泵不必配帶），以防止由于某種原因如排出管堵塞使泵的出口壓力超過容許值而損壞泵或原動(dòng)機(jī)。

桿泵結(jié)構(gòu)

三螺桿泵是利用螺桿的回轉(zhuǎn)來吸排液體的。中間螺桿為主動(dòng)螺桿，由原動(dòng)機(jī)帶動(dòng)回轉(zhuǎn)，兩邊的螺桿為從動(dòng)螺桿，隨主動(dòng)螺桿作反向旋轉(zhuǎn)。主、從動(dòng)螺 桿的螺紋均為雙頭螺紋。

三螺桿泵是螺桿式式容積泵。在三螺矸泵中，由于主螺桿與從動(dòng)螺桿上螺旋槽相互嚙合及它們與襯套三孔內(nèi)表面的配合，得以在泵的與出口之間形成數(shù)級(jí)動(dòng)密封室，這些動(dòng)密封室將不斷把液體由泵軸向移動(dòng)到泵出 口，并使所輸送液體逐級(jí)升壓。從而形成一個(gè)連續(xù)、平穩(wěn)、軸向移動(dòng)的壓力液體。三螺桿泵所輸送液體為不含固體顆粒，無腐蝕性油類及類似油的潤(rùn)滑性液體，粘度1.2~100oE(3.0~760cst)，高粘度液體亦可通過加溫降粘后輸送，其溫度不超過150oC。

主要特點(diǎn)：

由于各螺桿的相互嚙合以及螺桿與襯筒內(nèi)壁的緊密配合，在泵的吸入口和排出口之間，就會(huì)被分隔成一個(gè)或多個(gè)密封空間。隨著螺桿的轉(zhuǎn)動(dòng)和嚙合，這些密封空間在泵的吸入端不斷形成，將吸入室中的液體封入其中，并自吸入室沿螺桿軸向連續(xù)地推移至排出端，將封閉在 各空間中的液體不斷排出，猶如一螺母在螺紋回轉(zhuǎn)時(shí)被不斷向前推進(jìn)的情形那樣，其中螺紋圈數(shù)看做液體，當(dāng)螺釘旋轉(zhuǎn)時(shí)螺紋在轉(zhuǎn)動(dòng)時(shí)就相當(dāng)于液體在螺桿泵里面的情形，這就是螺桿泵的基本工作原理。

螺桿與殼體之間的密封面是一個(gè)空間曲面。在這個(gè)曲面上存在著諸如ab或de之類的非密封區(qū)，并且與螺桿的凹槽部分形成許多三角形的缺口abc、def。這些三角形 的缺口構(gòu)成液體的通道，使主動(dòng)螺桿凹槽A與從動(dòng)螺桿上的凹槽B、C相連通。而凹槽B、C又沿著自己的螺線繞向背面， 并分別和背面的凹槽D、E相連通。由于在槽D、E與槽F(它屬于另一頭螺線)相銜接的密封面上，也存在著類似于正面的三角形缺口a’b’c’，所以D、F、E也將相通。這樣，凹槽ABCDEA也就組成一個(gè)“∞” 形的密封空間(如采用單頭螺紋，則凹槽將順軸向盤饒螺桿，將吸排口貫通，無法形成密封)。不難想象，在這樣的螺桿 上，將形成許多個(gè)獨(dú)立的“∞”形密封空間，每一個(gè)密封空間所占有的軸向長(zhǎng)度恰好等于累桿的導(dǎo)程t。因此，為了使螺桿能吸、排油口分隔開來，螺桿的螺紋段的長(zhǎng)度至少要大于一個(gè)導(dǎo)。

Germany  Kaysen imported sanitary screw pump overview

The three-screw pump is formed by the pump body and the screw. When the driving screw rotates, the driven screw that meshes with it is rotated together, and the screw meshing space volume at one end of the suction chamber is gradually increased, and the pressure is lowered.

The liquid enters the volume of the meshing space under the pressure difference. When the volume is increased to a maximum to form a sealed chamber, the liquid is continuously moved axially in the sealed chambers until one end of the chamber. At this time, the volume of the screw meshing space at one end of the discharge chamber is gradually reduced, and the liquid is discharged. The working principle of the three-screw pump is similar to that of a gear pump, except that the gear is replaced by a screw in the structure. The table shows the characteristics and application range of various screw pumps. The three-screw pump has small flow and pressure pulses, low noise and vibration, and self-priming capability, but screw processing is difficult. The pump has a single suction type and a double suction type, but the single screw pump has only a single suction type. The three-screw pump must be equipped with a safety valve (the single-screw pump does not have to be equipped with a belt) to prevent the pump or prime mover from being damaged due to some reason such as the discharge pipe being blocked and the pump outlet pressure exceeding the allowable value.

Rod pump structure

The three-screw pump uses the rotation of the screw to suck and drain the liquid. The intermediate screw is an active screw, which is driven by the prime mover, and the screw on both sides is a driven screw, which rotates in reverse with the active screw. The threads of the main and driven screws are double-ended threads.

The three screw pump is a screw type positive displacement pump. In the three-screw pump, since the main screw and the spiral groove on the driven screw are engaged with each other and they cooperate with the inner surface of the three holes of the bushing, a plurality of dynamic sealing chambers are formed between the inlet and the outlet of the pump, and these dynamic seals are formed. The chamber will continuously move the liquid axially from the pump inlet to the pump outlet and boost the delivered liquid step by step. Thereby forming a continuous, smooth, axially moving pressure liquid. The liquid conveyed by the three-screw pump is a lubricating liquid containing no solid particles, no corrosive oil and similar oil, and the viscosity is 1.2~100oE (3.0~760cst). The high viscosity liquid can also be transported by heating and viscosity reduction. Not more than 150oC.

main feature:

Due to the mutual engagement of the screws and the close fit of the screw to the inner wall of the liner, between the suction and discharge ports of the pump, it is divided into one or more sealed spaces. With the rotation and engagement of the screw, these sealed spaces are continuously formed at the suction end of the pump, the liquid in the suction chamber is sealed therein, and continuously pushed from the suction chamber in the axial direction of the screw to the discharge end, which is enclosed in each space. The liquid is continuously discharged, just as a nut is continuously pushed forward when the thread is swung. The number of threads is regarded as a liquid. When the screw rotates, the thread is equivalent to the liquid inside the screw pump. This is the screw. The basic working principle of the pump.

The sealing surface between the screw and the housing is a spatial curved surface. There is a non-sealed area such as ab or de on this curved surface, and a plurality of triangular notches abc, def are formed with the groove portion of the screw. These triangular notches form a passage for the liquid, allowing the active screw groove A to communicate with the grooves B, C on the driven screw. The grooves B and C are wound along their own spirals to the back, and communicate with the grooves D and E on the back, respectively. Since the groove D, E and the groove F (which belongs to the other head spiral) are joined to each other with a triangular notch a'b'c' similar to the front surface, D, F, and E will also communicate. In this way, the groove ABCDEA also constitutes a "∞"-shaped sealing space (if a single-head thread is used, the groove will be screwed in the axial direction, and the suction and discharge ports will pass through, failing to form a seal). It is not difficult to imagine that on such a screw, a plurality of independent "∞"-shaped sealed spaces will be formed, each of which occupies an axial length exactly equal to the lead t of the tired rod. Therefore, in order to separate the screw suction and discharge ports, the length of the threaded section of the screw is at least greater than one guide.

位于Schw?bischGmünd的凱森Kaysen泵業(yè)有限公司是*的各種流體水泵和隔膜泵制造商之一。60多年來，凱森以“制造”的可靠性和質(zhì)量達(dá)到了*標(biāo)準(zhǔn)。憑借我們?nèi)娴漠a(chǎn)品組合，我們支持世界各地的客戶成功掌握供水，采礦，工業(yè)，化工，造紙，電力，食品，制藥，污水和海上行業(yè)的苛刻抽水任務(wù)。作為上述領(lǐng)域創(chuàng)新技術(shù)的*供應(yīng)商，我們是液體需要安全，高效和經(jīng)濟(jì)運(yùn)輸?shù)?合作伙伴。
        凱森始終堅(jiān)持“重質(zhì)量，講信譽(yù)”為宗旨。產(chǎn)品現(xiàn)暢銷全國(guó)各地，并已逐步開發(fā)海外市場(chǎng)。公司多次被評(píng)為“重合同講信用”企業(yè)，深得用戶的信賴和廣泛的贊譽(yù)。

        The Kaysen Pumps GmbH in Schw?bischGmünd, Germany, is one of the world's leading manufacturers of fluid centrifugal pumps and diaphragm pumps. For more than 60 years, Kaisen has achieved the highest standards of reliability and quality of "Made in Germany". With our comprehensive product portfolio, we support customers around the world to successfully grasp the harsh pumping tasks of water supply, mining, industry, chemical, paper, electricity, food, pharmaceutical, sewage and marine industries. As a leading provider of innovative technology in these areas, we are the perfect partner for liquids to be safe, efficient and economical to transport. ,
          Germany Kaysen always adhere to the "quality, stresses credibility" for the purpose. Products are selling all over the country, and has gradually developed overseas markets. The company has repeatedly been rated as "the contract with the letter" business, won the trust of users and extensive praise.

衛(wèi)生級(jí)螺桿泵(螺桿泵10大品牌）