| 產(chǎn)品參數(shù) |
|
| 品牌 | 河北遠(yuǎn)東 |
| 驅(qū)動(dòng)方式 | 電動(dòng) |
| 性能 | 自動(dòng) |
| 輸送介質(zhì) | 油泵 |
| 泵軸位置 | 邊立式 |
| 葉輪數(shù)目 | 單級(jí) |
| 適用范圍 | 潤(rùn)滑 |
| 流量 | 2.89 |
| 揚(yáng)程 | 50 |
| 轉(zhuǎn)速 | 1450 |
| 吸入口徑 | 32 |
| 排出口徑 | 25 |
| 工作溫度 | 180 |
| 工作壓力 | 50 |
| 重量 | 125 |
| 電壓 | 380 |
| 功率 | 1.5 |
| 規(guī)格 | SNS40R54E6.7W21 |
| 用途 | 增壓泵 |
| 材質(zhì) | 鑄鐵 |
| 類型 | 螺桿泵 |
| 型號(hào) | SNS40R54E6.7W21 | |
??河北遠(yuǎn)東泵業(yè)-SNS40R54E6.7W21 立式三螺桿泵? 增壓泵
? ●SN三螺桿泵特點(diǎn): 1.轉(zhuǎn)子液壓平衡,振動(dòng)小,噪音低。 2.輸出穩(wěn)定,無脈動(dòng)。 3.高效率。 4.具有很強(qiáng)的自吸能力。 5.零部件采用通用性強(qiáng)的系列化設(shè)計(jì),具有多種安裝方式。 6.結(jié)構(gòu)緊湊,體積小,重量輕,可在較高轉(zhuǎn)速下工作。 ●SN三螺桿泵輸送介質(zhì)種類: a. 潤(rùn)滑性液體:如機(jī)械油,滑油,重油,渣油 b. 低潤(rùn)滑性液體:如輕柴油,重柴油,含蠟稀油 c. 粘性液體:如各種合成橡膠液和人造膠液,乳化液 ●SN三螺桿泵應(yīng)用: ·在供熱設(shè)備中用做燃油,燃油供應(yīng)和輸送泵。 ·在機(jī)械工業(yè)中用做液壓,潤(rùn)滑和搖控馬達(dá)泵。 ·在化學(xué)石油化工和食品工業(yè)中用做裝載,輸送和供液泵。 ·在船舶上用做輸送、增壓、燃油噴射和潤(rùn)滑油泵以及船用液壓裝置泵。
??? 泵的安裝說明Pump installation instructions
??? ① 泵的吸入, 排出管路的管徑不得小于泵的進(jìn)、出口口徑, 管路力求簡(jiǎn)短, 減少不必要的損失(如彎頭等)。泵的安裝高度, 長(zhǎng)度應(yīng)保證泵工作時(shí)不超過允許的吸上真空高度。(1) of the pump suction and discharge line of the pipe diameter shall not be less than the inlet and outlet of pump diameter, pipe to short, reduce unnecessary losses (such as elbow, etc.).Pump installation height, length should guarantee the pump working shall not exceed the permitted on vacuum suction height.
??? ② 管路應(yīng)有管架, 泵不允許承受管路的負(fù)荷。安裝前對(duì)吸入、排出管路要清理干凈, 去掉鐵銹等臟物, 特別是焊接管路的焊渣必須徹底清除, 以免進(jìn)入泵后咬死。(2) the line pipe rack, pump are not allowed to bear load of pipeline.Before installation on the suction and discharge line to clean, remove rust and dirt, especially welding pipe welding slag must be thoroughly cleared, to avoid killed after entering the pump.
??? ③吸入管路應(yīng)設(shè)裝過濾器, 其濾網(wǎng)為40-80目, 有效過濾器面積大于吸入口徑的8-15倍。(3) suction pipe should be installed filters, the mesh is 40-80 mesh, the effective filter area is greater than the suction diameter of 8-15 times.
??? ④泵進(jìn)、出口處應(yīng)連接真空表(或真空壓力表)和壓力表, 以便觀察泵工作狀態(tài)。(4) the pump inlet and outlet should be connected vacuum gauge or vacuum pressure gauge and pressure gauge, in order to observe the pump working status.
??? ⑤如有兩臺(tái)以上的泵并聯(lián)在同一管路上, 在泵出口處必須安裝逆止閥, 保證泵的正常工作。5. If you have more than two pumps in parallel in the e way, must be installed at pump outlet check valve, to ensure the normal operation of the pump.
??? ⑥安裝泵的位置應(yīng)寬暢, 方便檢修。將機(jī)組放在地腳螺栓的基礎(chǔ)上, 找正后擰緊地腳螺栓。6. The location of the installation of pump should be enlarged, convenient maintenance.Unit on the basis of the anchor bolt, after looking for is tighten the anchor bolts.
??? ⑦在接好管路及確定電機(jī)轉(zhuǎn)向后接聯(lián)軸器, 聯(lián)軸器外圓同心度允差為0.1毫米, 兩聯(lián)軸器端面間隙允差為2毫米。
??? ⑧ 機(jī)組運(yùn)轉(zhuǎn)3-4小時(shí)后作最后檢查, 如無不良現(xiàn)象, 則認(rèn)為安裝合格。
??? ⑨ 保溫泵在泵進(jìn)口方向的背面分別接有管閥1、2。泵啟動(dòng)前閥1和閥2應(yīng)完全打開,通入保溫用的汽(液)后,并達(dá)到規(guī)定的保溫溫度時(shí)方能開啟泵機(jī)組。若工作正常不需供保溫的汽(液)時(shí),可關(guān)閉閥1,注意排氣閥2不能關(guān)閉。
??? ⑩與泵聯(lián)接的進(jìn)出口管道,法蘭一定要清潔,嚴(yán)禁雜質(zhì)、焊渣殘留管內(nèi)。7 after good pick up line and to determine the motor coupling, coupling cylindrical concentricity tolerance is 0.1 mm, two coupling end clearance tolerance of 2 mm.Sets operate after 3-4 hours today for final inspection, if there is no negative phenomenon, is considered qualified installation.Pet-name ruby heat pump on the back of the pump inlet direction with the pipe valves 1, 2, respectively.Before starting the pump valve 1 and 2 should be fully open, after going into the insulation with steam (liquid), and meet the heat preservation temperature, in order to open the pump unit.If work does not need for insulation of steam (liquid), close the valve 1, pay attention to the exhaust valve 2 cannot be closed.Attending to the import and export of pump connection pipes, flanges must be clean, impurity, welding slag residual tube shall be strictly prohibited.
???1.流量Q:
???作為容積式泵,影響雙螺桿泵流量的因素主要有轉(zhuǎn)速n,壓力p,以及介質(zhì)的粘度v。
???1.1 轉(zhuǎn)速 n 的影響:
????螺桿泵在工作時(shí),兩螺桿及襯套之間形成密封腔,螺桿每轉(zhuǎn)動(dòng)一周便由進(jìn)口向出口移出一個(gè)密封腔,即一個(gè)密封腔的體積的液體被排出去。理想狀態(tài)下,泵內(nèi)部無泄漏,那么泵的流量與轉(zhuǎn)速成正比。即:
???Qth=n*q
???n----轉(zhuǎn)速;
???q----理論排量,即泵每轉(zhuǎn)一周所排出的液體體積;
???Qth----理論排量。
???1.2 壓力△P的影響:
???雙螺桿泵實(shí)際工作過程中,其內(nèi)部存在泄漏,也稱滑移量。由于泵的密封腔有一定的間隙,且密封腔前、后存在壓差△P,因此,有一部分液體回流,即存在泄漏,泄漏量用△Q表示,則 Q=Qth-△Q 顯而易見,隨著密封腔前、后壓差△P升高,泄漏量△Q逐漸增大。對(duì)于不同型線和結(jié)構(gòu),影響大小也各不相同。
???1.3 粘度v的影響:
???試想:將清水和粘稠的漿糊以相同的體積從漏斗式的容器中泄漏出去。顯然水比漿糊要泄漏得快。
???同理,對(duì)于雙螺桿泵,粘度大的流體比粘度小的液體的泄漏要小,泄漏量與介質(zhì)粘度有一定的比例關(guān)系。
???綜上所述,要綜合地考慮以上各種因素,通過一系列的計(jì)算才能精確地知道泵的實(shí)際流量是否符合工況要求。
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