(?) (?)自(Zi)吸(Xi)泵(Beng)车(Che)因(Yin)泵(Beng)本(Ben)身(Shen)没(Mei)有(You)逆(Ni)止(Zhi)阀(Fa),结(Jie)构(Gou)较(Jiao)为(Wei)简(Jian)单(Dan);工(Gong)作(Zuo)较(Jiao)为(Wei)可(Ke)靠(Kao);*工(Gong)作(Zuo)时(Shi)间(Jian)长(Chang),维(Wei)护(Hu)、(?)使(Shi)用(Yong)方(Fang)便(Bian)、(?)体(Ti)积(Ji)小(Xiao)、(?)重(Zhong)量(Liang)轻(Qing)、(?)效(Xiao)率(Lu)高(Gao)、(?)在(Zai)设(She)计(Ji)上(Shang)做(Zuo)了(Liao)特(Te)别(Bie)的(De)考(Kao)虑(Lu)与(Yu)相(Xiang)同(Tong)口(Kou)径(Jing)的(De)泵(Beng)比(Bi)较(Jiao),排(Pai)量(Liang)大(Da)、(?)抢(Qiang)险(Xian)救(Jiu)助(Zhu),如(Ru)排(Pai)涝(Lao)、(?)救(Jiu)火(Huo)中(Zhong)作(Zuo)为(Wei)应(Ying)急(Ji)泵(Beng)使(Shi)用(Yong)效(Xiao)能(Neng)更(Geng)为(Wei)突(Tu)出(Chu)。(?)该(Gai)泵(Beng)广(Guang)泛(Fan)适(Shi)用(Yong)石(Shi)油(You)、(?)化(Hua)工(Gong)、(?)冶(Ye)金(Jin)、(?)机(Ji)械(Xie)、(?)化(Hua)纤(Xian)、(?)食(Shi)品(Pin)、(?)能(Neng)源(Yuan)、(?)交(Jiao)通(Tong)等(Deng)工(Gong)业(Ye)部(Bu)门(Men)城(Cheng)市(Shi)给(Gei)水(Shui)、(?)亦(Yi)可(Ke)用(Yong)于(Yu)农(Nong)业(Ye)排(Pai)灌(Guan)、(?)喷(Pen)灌(Guan)。(?)供(Gong)输(Shu)送(Song)清(Qing)水(Shui)或(Huo)粘(Zhan)度(Du)小(Xiao)于(Yu)5°E,温(Wen)度(Du)低(Di)于(Yu)80℃(?)物(Wu)理(Li)及(Ji)化(Hua)学(Xue)性(Xing)质(Zhi)类(Lei)似(Si)水(Shui)的(De)其(Qi)它(Ta)液(Ye)体(Ti)。(?)
(?) (?)预(Yu)防(Fang)自(Zi)吸(Xi)泵(Beng)车(Che)进(Jin)气(Qi)的(De)措(Cuo)施(Shi):(?)
(?) (?)(1)设(She)备(Bei)的(De)安(An)装(Zhuang)位(Wei)置(Zhi)应(Ying)尽(Jin)量(Liang)接(Jie)近(Jin)水(Shui)面(Mian),(?)保(Bao)证(Zheng)在(Zai)水(Shui)位(Wei)下(Xia)降(Jiang)时(Shi)不(Bu)吸(Xi)进(Jin)空(Kong)气(Qi)。(?)
(?) (?)(2)安(An)装(Zhuang)吸(Xi)水(Shui)管(Guan)路(Lu)时(Shi),(?)进(Jin)水(Shui)横(Heng)管(Guan)应(Ying)向(Xiang)来(Lai)水(Shui)方(Fang)向(Xiang)稍(Shao)往(Wang)下(Xia)倾(Qing)斜(Xie)或(Huo)者(Zhe)水(Shui)平(Ping)安(An)装(Zhuang),(?)进(Jin)水(Shui)管(Guan)任(Ren)何(He)一(Yi)点(Dian)都(Du)不(Bu)得(De)高(Gao)于(Yu)水(Shui)泵(Beng)进(Jin)水(Shui)口(Kou),(?)否(Fou)则(Ze)管(Guan)内(Nei)空(Kong)气(Qi)排(Pai)除(Chu)不(Bu)尽(Jin)。(?)
(?) (?)(3)用(Yong)法(Fa)兰(Lan)盘(Pan)连(Lian)接(Jie)的(De)进(Jin)水(Shui)管(Guan)安(An)装(Zhuang)前(Qian),(?)要(Yao)将(Jiang)2个(Ge)法(Fa)兰(Lan)盘(Pan)相(Xiang)接(Jie)触(Chu)的(De)平(Ping)面(Mian)清(Qing)理(Li)干(Gan)净(Jing),(?)中(Zhong)间(Jian)加(Jia)1个(Ge)3~5mm厚(Hou)的(De)胶(Jiao)垫(Dian),(?)要(Yao)对(Dui)称(Cheng)、(?)分(Fen)几(Ji)次(Ci)逐(Zhu)步(Bu)地(Di)将(Jiang)螺(Luo)栓(Shuan)拧(Ning)紧(Jin)。(?)
(?) (?)(4)要(Yao)防(Fang)止(Zhi)填(Tian)料(Liao)涵(Han)漏(Lou)气(Qi)。(?)填(Tian)料(Liao)涵(Han)的(De)松(Song)紧(Jin)应(Ying)合(He)适(Shi),(?)如(Ru)果(Guo)过(Guo)松(Song),(?)应(Ying)上(Shang)紧(Jin)填(Tian)料(Liao)压(Ya)盖(Gai);填(Tian)料(Liao)损(Sun)坏(Huai)、(?)失(Shi)效(Xiao),(?)应(Ying)及(Ji)时(Shi)更(Geng)换(Huan);填(Tian)料(Liao)涵(Han)盖(Gai)处(Chu)的(De)水(Shui)封(Feng)管(Guan)堵(Du)塞(Sai)并(Bing)发(Fa)热(Re),(?)将(Jiang)引(Yin)起(Qi)填(Tian)料(Liao)涵(Han)盖(Gai)漏(Lou)气(Qi),(?)应(Ying)清(Qing)洗(Xi)水(Shui)封(Feng)管(Guan)。(?)
(?) (?)(5)自(Zi)吸(Xi)水(Shui)泵(Beng)底(Di)阀(Fa)要(Yao)有(You)足(Zu)够(Gou)的(De)淹(Yan)没(Mei)深(Shen)度(Du),(?)从(Cong)阀(Fa)门(Men)平(Ping)面(Mian)算(Suan)起(Qi)淹(Yan)没(Mei)深(Shen)度(Du)应(Ying)等(Deng)于(Yu)底(Di)阀(Fa)外(Wai)径(Jing)的(De)1.5~2倍(Bei),至(Zhi)少(Shao)不(Bu)小(Xiao)于(Yu)0.5m。(?)如(Ru)果(Guo)淹(Yan)没(Mei)太(Tai)浅(Qian),(?)容(Rong)易(Yi)形(Xing)成(Cheng)旋(Xuan)涡(Wo),(?)从(Cong)而(?)吸(Xi)进(Jin)空(Kong)气(Qi),(?)产(Chan)生(Sheng)汽(Qi)蚀(Shi)并(Bing)损(Sun)坏(Huai)叶(Ye)轮(Lun)和(He)泵(Beng)壳(Ke)。(?)如(Ru)果(Guo)发(Fa)现(Xian)水(Shui)泵(Beng)运(Yun)行(Xing)时(Shi)进(Jin)水(Shui)位(Wei)下(Xia)降(Jiang)很(Hen)快(Kuai),(?)可(Ke)以(Yi)在(Zai)水(Shui)面(Mian)上(Shang)放(Fang)几(Ji)块(Kuai)木(Mu)板(Ban),(?)以(Yi)减(Jian)少(Shao)旋(Xuan)涡(Wo),(?)防(Fang)止(Zhi)空(Kong)气(Qi)进(Jin)入(Ru)泵(Beng)壳(Ke)。(?)
(?) (?)(6)自(Zi)吸(Xi)泵(Beng)吸(Xi)水(Shui)口(Kou)处(Chu)的(De)真(Zhen)空(Kong)度(Du)是(Shi)有(You)限(Xian)的(De),(?)真(Zhen)空(Kong)度(Du)过(Guo)大(Da),(?)易(Yi)使(Shi)泵(Beng)内(Nei)水(Shui)汽(Qi)化(Hua),(?)对(Dui)自(Zi)吸(Xi)水(Shui)泵(Beng)工(Gong)作(Zuo)不(Bu)利(Li)。(?)所(Suo)以(Yi),(?)各(Ge)自(Zi)吸(Xi)水(Shui)泵(Beng)都(Du)有(You)其(Qi)允(Yun)许(Xu)吸(Xi)程(Cheng),(?)一(Yi)般(Ban)均(Jun)在(Zai)3~6.5m之(Zhi)间(Jian),安(An)装(Zhuang)时(Shi)应(Ying)控(Kong)制(Zhi)在(Zai)此(Ci)范(Fan)围(Wei)。(?)
(?) (?)(7)设(She)备(Bei)上(Shang)设(She)有(You)放(Fang)气(Qi)螺(Luo)塞(Sai),(?)为(Wei)便(Bian)于(Yu)放(Fang)气(Qi),(?)可(Ke)用(Yong)螺(Luo)纹(Wen)尺(Chi)寸(Cun)相(Xiang)同(Tong)的(De)水(Shui)代(Dai)替(Ti)放(Fang)气(Qi)螺(Luo)塞(Sai),(?)放(Fang)气(Qi)时(Shi)打(Da)开(Kai)水(Shui)即(Ji)可(Ke)。(?)
(?) (?)(8)注(Zhu)意(Yi)排(Pai)气(Qi)。(?)在(Zai)启(Qi)动(Dong)自(Zi)吸(Xi)水(Shui)泵(Beng)前(Qian)应(Ying)加(Jia)足(Zu)引(Yin)水(Shui),(?)以(Yi)排(Pai)除(Chu)自(Zi)吸(Xi)水(Shui)泵(Beng)内(Nei)的(De)空(Kong)气(Qi);平(Ping)时(Shi)应(Ying)定(Ding)期(Qi)打(Da)开(Kai)泵(Beng)盖(Gai)上(Shang)的(De)放(Fang)气(Qi)螺(Luo)塞(Sai),(?)排(Pai)除(Chu)积(Ji)聚(Ju)在(Zai)里(Li)面(Mian)的(De)空(Kong)气(Qi)。(?)
(?) (?)以(Yi)上(Shang)就(Jiu)是(Shi)预(Yu)防(Fang)自(Zi)吸(Xi)泵(Beng)车(Che)进(Jin)气(Qi)的(De)措(Cuo)施(Shi),(?)只(Zhi)有(You)在(Zai)使(Shi)用(Yong)前(Qian)对(Dui)设(She)备(Bei)使(Shi)用(Yong)时(Shi)可(Ke)能(Neng)出(Chu)现(Xian)的(De)情(Qing)况(Kuang)有(You)一(Yi)定(Ding)的(De)了(Liao)解(Jie)才(Cai)能(Neng)保(Bao)证(Zheng)运(Yun)行(Xing)时(Shi)的(De)顺(Shun)利(Li),(?)避(Bi)免(Mian)很(Hen)多(Duo)故(Gu)障(Zhang)。(?)