4点(Dian)教(Jiao)你(Ni)选(Xuan)择(Ze)适(Shi)合(He)的(De)灌(Guan)溉(Gai)泵(Beng)
点(Dian)击(Ji)次(Ci)数(Shu):(?)2160 更(Geng)新(Xin)时(Shi)间(Jian):(?)2020-11-28
(?) (?)熟(Shu)悉(Xi)农(Nong)业(Ye)灌(Guan)溉(Gai)的(De)人(Ren)都(Du)知(Zhi)道(Dao),(?)农(Nong)业(Ye)灌(Guan)溉(Gai)可(Ke)以(Yi)说(Shuo)是(Shi)常(Chang)见(Jian)的(De)农(Nong)业(Ye)作(Zuo)业(Ye)之(Zhi)一(Yi),(?)为(Wei)了(Liao)让(Rang)农(Nong)作(Zuo)物(Wu)吸(Xi)收(Shou)足(Zu)够(Gou)的(De)水(Shui)分(Fen),(?)经(Jing)常(Chang)要(Yao)给(Gei)农(Nong)作(Zuo)物(Wu)施(Shi)肥(Fei)浇(Jiao)水(Shui),(?)农(Nong)业(Ye)灌(Guan)溉(Gai)是(Shi)*的(De)一(Yi)个(Ge)过(Guo)程(Cheng)。(?)灌(Guan)溉(Gai)是(Shi)补(Bu)充(Chong)作(Zuo)物(Wu)所(Suo)需(Xu)水(Shui)分(Fen)的(De)技(Ji)术(Shu)措(Cuo)施(Shi)。(?)为(Wei)了(Liao)保(Bao)证(Zheng)作(Zuo)物(Wu)正(Zheng)常(Chang)生(Sheng)长(Chang),(?)获(Huo)取(Qu)高(Gao)产(Chan)稳(Wen)产(Chan),(?)必(Bi)须(Xu)供(Gong)给(Gei)作(Zuo)物(Wu)以(Yi)充(Chong)足(Zu)的(De)水(Shui)分(Fen)。(?)灌(Guan)溉(Gai)泵(Beng)是(Shi)农(Nong)业(Ye)正(Zheng)常(Chang)生(Sheng)产(Chan)的(De)有(You)力(Li)保(Bao)障(Zhang)。(?)
(?) (?)灌(Guan)溉(Gai)泵(Beng)可(Ke)以(Yi)把(Ba)水(Shui)从(Cong)低(Di)处(Chu)抽(Chou)送(Song)到(Dao)高(Gao)处(Chu)、(?)可(Ke)通(Tong)过(Guo)例(Li)如(Ru)渠(Qu)道(Dao)输(Shu)水(Shui)至(Zhi)农(Nong)田(Tian)作(Zuo)物(Wu)(提(Ti)水(Shui)运(Yun)行(Xing)),(?)或(Huo)在(Zai)一(Yi)定(Ding)的(De)扬(Yang)程(Cheng)下(Xia)通(Tong)过(Guo)输(Shu)配(Pei)水(Shui)管(Guan)道(Dao)和(He)喷(Pen)头(Tou)将(Jiang)水(Shui)洒(Sa)到(Dao)空(Kong)中(Zhong),(?)均(Jun)匀(Yun)散(San)成(Cheng)细(Xi)小(Xiao)水(Shui)滴(Di)对(Dui)农(Nong)田(Tian)进(Jin)行(Xing)灌(Guan)溉(Gai)(喷(Pen)灌(Guan))。(?)
(?) (?)灌(Guan)溉(Gai)泵(Beng)的(De)选(Xuan)择(Ze)要(Yao)点(Dian):(?)
(?) (?)(1)确(Que)定(Ding)流(Liu)量(Liang):(?)流(Liu)量(Liang)=(农(Nong)田(Tian)需(Xu)水(Shui)总(Zong)量(Liang)+渠(Qu)道(Dao)损(Sun)失(Shi)水(Shui)量(Liang))/水(Shui)泵(Beng)工(Gong)作(Zuo)时(Shi)间(Jian)农(Nong)田(Tian)需(Xu)水(Shui)总(Zong)量(Liang)很(Hen)难(Nan)一(Yi)概(Gai)而(?)论(Lun),(?)需(Xu)根(Gen)据(Ju)实(Shi)际(Ji)情(Qing)况(Kuang)和(He)农(Nong)民(Min)的(De)经(Jing)验(Yan)来(Lai)决(Jue)定(Ding)。(?)农(Nong)田(Tian)需(Xu)水(Shui)总(Zong)量(Liang)等(Deng)于(Yu)农(Nong)田(Tian)面(Mian)积(Ji)与(Yu)灌(Guan)水(Shui)深(Shen)的(De)乘(Cheng)积(Ji)。(?)水(Shui)流(Liu)经(Jing)渠(Qu)道(Dao),渠(Qu)道(Dao)损(Sun)失(Shi)水(Shui)量(Liang)也(Ye)跟(Gen)多(Duo)方(Fang)面(Mian)的(De)因(Yin)素(Su)有(You)关(Guan)。(?)水(Shui)泵(Beng)的(De)选(Xuan)择(Ze)一(Yi)般(Ban)损(Sun)失(Shi)量(Liang)在(Zai)农(Nong)田(Tian)需(Xu)水(Shui)量(Liang)的(De)5%-25%之(Zhi)间(Jian)。(?)水(Shui)泵(Beng)工(Gong)作(Zuo)时(Shi)间(Jian)可(Ke)根(Gen)据(Ju)实(Shi)际(Ji)需(Xu)要(Yao)确(Que)定(Ding)。(?)
(?) (?)(2)确(Que)定(Ding)扬(Yang)程(Cheng):(?)实(Shi)际(Ji)扬(Yang)程(Cheng)可(Ke)到(Dao)实(Shi)地(Di)测(Ce)量(Liang),(?)即(Ji)从(Cong)水(Shui)源(Yuan)水(Shui)面(Mian)到(Dao)渠(Qu)道(Dao)水(Shui)面(Mian)或(Huo)农(Nong)田(Tian)面(Mian)的(De)垂(Chui)直(Zhi)度(Du)。(?)如(Ru)果(Guo)是(Shi)江(Jiang)河(He)湖(Hu)泊(Bo),水(Shui)源(Yuan)水(Shui)面(Mian)应(Ying)以(Yi)抗(Kang)旱(Han)时(Shi)的(De)枯(Ku)水(Shui)位(Wei)为(Wei)标(Biao)准(Zhun)。(?)水(Shui)泵(Beng)的(De)选(Xuan)择(Ze)在(Zai)确(Que)定(Ding)扬(Yang)程(Cheng)时(Shi),(?)还(Huan)要(Yao)考(Kao)虑(Lu)水(Shui)泵(Beng)的(De)安(An)装(Zhuang)高(Gao)度(Du)。(?)水(Shui)泵(Beng)z大(Da)安(An)装(Zhuang)度(Du)=水(Shui)泵(Beng)允(Yun)许(Xu)吸(Xi)水(Shui)高(Gao)度(Du)-吸(Xi)水(Shui)损(Sun)失(Shi)扬(Yang)程(Cheng)水(Shui)泵(Beng)的(De)吸(Xi)水(Shui)损(Sun)失(Shi)扬(Yang)程(Cheng),(?)一(Yi)般(Ban)对(Dui)口(Kou)径(Jing)不(Bu)大(Da)的(De)(8寸(Cun)以(Yi)下(Xia))水(Shui)泵(Beng),(?)吸(Xi)水(Shui)管(Guan)又(You)不(Bu)太(Tai)长(Chang)时(Shi),(?)根(Gen)据(Ju)经(Jing)验(Yan),(?)有(You)底(Di)阀(Fa)时(Shi)吸(Xi)水(Shui)损(Sun)失(Shi)扬(Yang)程(Cheng)约(Yue)为(Wei)2米(Mi),(?)无(Wu)底(Di)阀(Fa)时(Shi)吸(Xi)水(Shui)损(Sun)失(Shi)扬(Yang)程(Cheng)接(Jie)近(Jin)1米(Mi)。(?)
(?) (?)(3)在(Zai)确(Que)定(Ding)了(Liao)流(Liu)量(Liang)和(He)扬(Yang)程(Cheng)以(Yi)后(Hou),(?)就(Jiu)可(Ke)以(Yi)根(Gen)据(Ju)水(Shui)泵(Beng)的(De)性(Xing)能(Neng),(?)从(Cong)配(Pei)套(Tao)动(Dong)力(Li)功(Gong)率(Lu)、(?)效(Xiao)率(Lu)、(?)传(Chuan)动(Dong)方(Fang)式(Shi)和(He)经(Jing)济(Ji)条(Tiao)件(Jian)等(Deng)方(Fang)面(Mian)作(Zuo)比(Bi)较(Jiao),(?)确(Que)定(Ding)选(Xuan)用(Yong)合(He)适(Shi)的(De)水(Shui)泵(Beng)类(Lei)型(Xing)和(He)型(Xing)号(Hao)。(?)
(?) (?)(4)水(Shui)泵(Beng)的(De)选(Xuan)择(Ze)类(Lei)型(Xing):(?)离(Li)心(Xin)泵(Beng)流(Liu)量(Liang)小(Xiao),(?)扬(Yang)程(Cheng)高(Gao),(?)适(Shi)用(Yong)于(Yu)10米(Mi)以(Yi)上(Shang)实(Shi)际(Ji)扬(Yang)程(Cheng);(?)轴(Zhou)流(Liu)泵(Beng)流(Liu)量(Liang)大(Da),扬(Yang)程(Cheng)低(Di),(?)适(Shi)用(Yong)于(Yu)4米(Mi)以(Yi)下(Xia)实(Shi)际(Ji)扬(Yang)程(Cheng);(?)混(Hun)流(Liu)泵(Beng)介(Jie)于(Yu)离(Li)心(Xin)泵(Beng)和(He)轴(Zhou)流(Liu)泵(Beng)之(Zhi)间(Jian),(?)适(Shi)用(Yong)于(Yu)5~10米(Mi)扬(Yang)程(Cheng)。(?)