175QJR Pompo e Tebileng e ka Behang Hantle

Etsa tšebetso ea OEM! Ho latela litlhoko tsa mosebelisi, moralo le tlhahiso ea mefuta e fapaneng ea litlhoko tse ikhethang tsa enjene ea submersible e sa tloaelehang le pompo. Litekanyetso tsa ts'ebetsong ea sehlahisoa: GB/T2816-2014 "pompo e kenang hantle", GB/T2818-2014 "enjene e kenang hantle ea asynchronous". WhatsApp: 17855846335

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Lintlha

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Tlhaloso ea Sehlahisoa

This product is designed for underground hot water mining and is suitable for water temperatures below 100°C. It has high temperature resistance, corrosion resistance and aging resistance. This product is very suitable for use in underground hot water mining environments, which can effectively deal with high temperatures and corrosion of various chemical substances, while having good aging resistance, ensuring stable operation of equipment for a long time. Whether it is needed to be used in harsh mining environments or in the face of high water temperatures, this product can provide reliable protection, ensuring continuous operation and efficient work of equipment.

Maemo a Tšebeliso

Product introduction: we recommend this product is equipped with three-phase AC 380V (tolerance + / - 1%), 50HZ (tolerance + / - 1%) power supply. Water quality requirements are strict, the water temperature shall not be higher than 20 °C, the content of solid impurities (mass ratio) shall not be greater than 0.01%; PH value (pH) between 6.5-8.5; hydrogen sulfide content shall not be greater than 1.5mg/L; chloride ion content shall not exceed 400mg/L. The product is equipped with a closed or water-cooled wet structure motor. Before use, the inner cavity of the submersible motor shall be filled with clean water to prevent empty. Then tighten the water injection and air exhaust screws, otherwise it is prohibited to use. The submersible pump must be completely immersed in water to operate, the penetration depth shall not exceed 70 meters, and the distance between the bottom of the submersible pump and the bottom of the well shall not be less than 3 meters. The inflow of well water shall meet the water output and continuous operation requirements of the submersible pump, and the water output of the pump shall be controlled between 0.7 and 1.2 times the rated flow. The well must be vertical, and the submersible pump can not be used horizontally or dumped, but only vertically. The submersible pump must be equipped with cables as required, and is equipped with external overload protection device. It is prohibited to test the pump without water and no load.

Tlhaloso ea Mohlala

Karolo ea Reference ea Mohlala

Mohlala	Phallo (m3/h)	Hlooho (m)	Rotatingspeed (fetola/ ntlha)	Pompo ea metsi(%)	Sethala bophara (mm)	E sebetsa hantle bophara(mm)	E lekantsoe power(KW）	E lekantsoe motlakase (V)	E lekantsoe jwale (A)	Monyetla (%)	matla factorcosφ	Yuniti Radial Maximu size(mm)
175QJ10-42	10	42	2850	53	50	175hodimo	3	380	7.8	74.0	0.79	168
175QJ10-56		56					4		10.1	76.0	0.79
175QJ10-70		70					4		10.1	76.0	0.79
175QJ10-84		84					5.5		13.6	77.0	0.8
175QJ10-112		112					7.5		18.4	77.5	0.8
175QJ10-126		126					7.5		18.4	77.5	0.8
175QJ10-140		140					9.2		22.1	78.0	0.81
175QJ15-42	15	42	2850	58	50	175hodimo	4	380	10.1	76.0	0.79	168
175QJ15-55		55					5.5		13.6	77.0	0.8
175QJ15-65		65					5.5		13.6	77.0	0.8
175QJ15-85		85					7.5		18.4	77.5	0.8
175QJ15-112		112					9.2		22.1	78.0	0.81
175QJ20-26	20	26	2850	64	50	175hodimo	3	380	7.8	74.0	0.79	168
175QJ20-39		39					4		10.1	76.0	0.79
175QJ20-52		52					5.5		13.6	77.0	0.8
175QJ20-78		78					7.5		18.4	77.5	0.8
175QJ20-91		91					9.2		22.1	78.0	0.81
175QJ20-104		104					11		26.1	79.0	0.81
175QJ20-130		130					13		30.1	80.0	0.82
175QJ20-156		156					15		34.7	80.0	0.82
175QJ20-182		187					18.5		42.6	80.5	0.82
175QJ20-208		208					22		49.7	81.0	0.83
175QJ20-247		247					25		56.5	81.0	0.83
175QJ20-273		273					30		66.6	81.5	0.84
175QJ20-299		299					30		66.6	81.5	0.84
175QJ20-325		325					32		71.0	81.5	0.84
175QJ20-364		364					37		82.1	81.5	0.84
175QJ25-26	25	26	2850	66	65	175hodimo	3	380	7.8	74.0	0.79	168
175QJ25-39		39					5.5		13.6	77.0	0.8
175QJ25-65	25	65	2850	66	65	175hodimo	7.5	380	18.4	77.5	0.8	168
175QJ25-78		78					9.2		22.1	78.0	0.81
175QJ25-91		91					11		26.1	79.0	0.81
175QJ25-104		104					13		30.1	80.0	0.82
175QJ25-130		130					15		34.7	80.0	0.82
175QJ25-156		156					18.5		42.6	80.5	0.82
175QJ25-182		182					22		49.7	81.0	0.83
175QJ25-208		208					25		56.5	81.0	0.83
175QJ25-221		221					30		66.6	81.5	0.84
175QJ25-247		247					30		66.6	81.5	0.84
175QJ25-260		260					32		71.0	81.5	0.84
175QJ25-299		299					37		82.1	81.5	0.84
175QJ30-30	30	30	2850	67	80	175hodimo	4	380	10.1	76.0	0.79	168
175QJ30-40		40					5.5		13.6	77.0	0.8
175QJ32-24	32	24	2850	67	80	175hodimo	4	380	10.1	76.0	0.79	168
175QJ32-36		36					5.5		13.6	77.0	0.8
175QJ32-48		48					7.5		18.4	77.5	0.8
175QJ32-60		60					9.2		22.1	78.0	0.81
175QJ32-72		72					11		26.1	79.0	0.81
175QJ32-84		84					13		30.1	80.0	0.82
175QJ32-96		96					15		34.7	80.0	0.82
175QJ32-120		120					18.5		42.6	80.5	0.82
175QJ32-144		144					22		49.7	81.0	0.83
175QJ32-168		168					25		56.5	81.0	0.83
175QJ32-180		180					30		66.6	81.5	0.84
175QJ32-192		192					30		66.6	81.5	0.84
175QJ32-204		204					32		71.0	81.5	0.84
175QJ32-240		240					37		82.1	81.5	0.84
175QJ35-60	35	60	2850	67	80	175hodimo	10	380	25.0	78.0	0.78	168
175QJ35-75		75					13		30.1	80.0	0.82
175QJ35-100		100					17		40.9	80.0	0.79
175QJ40-24	40	24	2850	70	80	175hodimo	5.5	380	13.6	77.0	0.8	168
175QJ40-30		30					5.5		13.6	77.0	0.8
175QJ40-36		36					7.5		18.4	77.5	0.8
175QJ40-48		48					9.2		22.1	78.0	0.81
175QJ40-60		60					11		26.1	79.0	0.81
175QJ40-72		72					13		30.1	80.0	0.82
175QJ40-84		84					15		34.7	80.0	0.82
175QJ40-96		96					18.5		42.6	80.5	0.82
175QJ40-120		120					22		49.7	81.0	0.83
175QJ40-132		132					25		56.5	81.0	0.83
175QJ40-144		144					30		66.6	81.5	0.84
175QJ40-156		156					30		66.6	81.5	0.84
175QJ40-168		168					32		71.0	81.5	0.84
175QJ40-192		192					37		82.1	81.5	0.84
175QJ50-24	50	24	2850	72	80	175hodimo	5.5	380	13.6	77.0	0.8	168
175QJ50-36		36					9.2		22.1	78.0	0.81
175QJ50-48		48					11		26.1	79.0	0.81
175QJ50-60		60					13		30.1	80.0	0.82
175QJ50-70		70					17		40.9	80.0	0.79
175QJ50-84		84					18.5		42.6	80.5	0.82
175QJ50-96		96					22		49.7	81.0	0.83
175QJ50-108		108					25		56.5	81.0	0.83
175QJ50-120		120					30		66.6	81.5	0.84
175QJ50-132		132					30		66.6	81.5	0.84
175QJ50-144		144					32		71.0	81.5	0.84
175QJ50-156		156					37		82.1	81.5	0.84
175QJ63-22	63	22	2850	72	80	175hodimo	7.5	380	18.4	77.5	0.8	168
175QJ63-44		44					13		30.1	80.0	0.82
175QJ63-55		55					15		34.7	80.0	0.82
175QJ63-66		66					18.5		42.6	80.5	0.82
175QJ63-77		77					22		49.7	81.0	0.83
175QJ63-88		88					25		56.5	81.0	0.83
175QJ63-99	63	99	2850	72	80	175hodimo	30	380	66.6	81.5	0.84	168
175QJ63-110		110					32		71.0	81.5	0.84
175QJ63-132		132					37		82.1	81.5	0.84
175QJ80-9	80	9	2850	73	100	175hodimo	4	380	10.1	76.0	0.79	168
175QJ80-18		18					7.5		18.4	77.5	0.8
175QJ80-27		27					11		26.1	79.0	0.81
175QJ80-36		36					15		34.7	80.0	0.82
175QJ80-45		45					18.5		42.6	80.5	0.82
175QJ80-54		54					22		49.7	81.0	0.83
175QJ80-63		63					25		56.5	81.0	0.83
175QJ80-72		72					25		56.5	81.0	0.83
175QJ80-81		81					30		66.6	81.5	0.84
175QJ80-90		90					32		71.0	81.5	0.84
175QJ80-98		98					37		82.1	81.5	0.84

Litlhokomelo tsa Tšireletso

1, well submersible pump for clean water pump, prohibit the new well, pumping sediment and muddy water,

2, well water pump voltage grade of 380/50HZ, the use of other voltage grades of submersible motors need to be customized. The underground cable must use waterproof cable, must be equipped with starting equipment, such as distribution box, start not ready should have commonly used motor comprehensive protection function, such as short circuit overload protection, phase protection, undervoltage protection, grounding protection, idling protection, in case of abnormal conditions, the protection device should be timely action trip.

3, the installation and use of the pump must be reliably grounded, prohibit the push and pull switch when the hands and feet are wet, the installation and maintenance of the pump must be cut off the power supply, the use of the pump place to set up "to prevent electric shock" obvious signs:

4, down the well or before installation, the motor cavity must be filled with distilled water or non-corrosive clean cold boiling water, tighten the / water bolt, the pump on the ground test run, must be to the pump chamber water lubrication rubber bearings, instant start not more than a second, see whether the steering is the same as the steering instructions. When the pump is upright, pay attention to safety, prevent overturning injury.

5, ho latela lipehelo tsa phahamiso ea pompo, mefuta e fapaneng ea ts'ebeliso ea phallo, ho thibela phallo e tlase kapa matla a ho pompa a phahamiso e phahameng, matla a ho pompa le likarolo tse ling tsa moaparo, moroalo o moholo oa koloi o chesitsoe.

6, after the pump down the well, the measurement of the motor to the ground insulation resistance should not be less than 100M, after the start to observe the voltage and current, check the motor winding insulation, whether in line with the requirements; pump storage location temperature if less than freezing point, should be dry the motor cavity water, prevent the motor cavity water ice damage caused by low temperature.

Selelekela sa Sebopeho

Kenyelletso e khuts'oane ea sebopeho: karolo ea pompo e entsoe haholo ka shaft ea pompo, impeller, khetla ea ho kheloha, ho tsamaisa rabara, 'mele oa ho hlahloba li-valve (likarolo tsa boikhethelo) le likarolo tse ling.Motor karolo e entsoe haholo-holo ka setsi, filimi e laolang khatello, tšitiso ea ho ts'oaroa. , setulo se ka tlaase sa tataiso se nang le setulo, stator, rotor, setulo se ka holimo sa tataiso, lesale la lehlabathe, karolo ea ho kenya metsi, cable le likarolo tse ling.

Likarolo tse kholo tsa sehlahisoa li kenyelletsa:

1, Enjene ke mochini o nang le metsi a nang le metsi a nang le metsi a nang le likarolo tse tharo tsa asynchronous motor, sekoti sa motlakase se tletse metsi a hloekileng, a sebelisetsoang ho pholisa koloi le ho lubricate bering, filimi e laolang khatello e ka tlaase ho koloi e sebelisetsoa ho fetola. phapang ea khatello ea ho atoloha le ho honyela ha metsi ka har'a 'mele e bakoang ke phetoho ea mocheso o nyolohang oa koloi.

2, E le ho thibela lehlabathe le ka metsing a seliba hore le se ke la kena mochineng, karolo e ka holimo ea mochine oa motlakase o na le litiiso tse peli tsa oli, 'me ho kenngoa lesale la lehlabathe ho theha mohaho oa ho thibela lehlabathe.

3, E le ho thibela pompo ea pompo hore e se ke ea matha ha e qala, pompo ea pompo le mochine oa motlakase li kopantsoe ka ho kopanya, 'me karolo e ka holimo ea motlakase e kenngoa karolong e ka tlaase ea motlakase.

4, Lubrication ea enjene le pompo e behang ke lubrication ea metsi.

5, Maqhubu a motor stator a entsoe ka terata ea boleng bo holimo e kentsoeng ka tlas'a metsi, e nang le ts'ebetso e phahameng ea insulation.

6, Pompo e entsoe ke CAD ea khomphutha, e nang le sebopeho se bonolo le ts'ebetso e ntle ea tekheniki.

Kenya

(1) Tokisetso pele ho ho kenya:
1. Lekola hore na pompo e ka tlas'a metsi e kopana le maemo a ts'ebeliso le boholo bo boletsoeng bukeng ea tataiso.
2. Ho sebelisa obiect e boima e nang le bophara bo lekanang le bophara bo boholo ba ka ntle ba pompo e ka tlas'a metsi, lekanya hore na inneldiameter ea seliba e ka lumellana le pompo e ka tlas'a metsi, 'me u lekanye hore na botebo ba seliba bo finyella litlhoko tsa ho kenya.
3. Lekola hore na seliba se hloekile le hore na metsi a seliba a litšila. Le ka mohla u se ke ua sebelisa pompo ea motlakase e ka tlas'a metsi ho hlatsoa seretse sa pompo ea welor le metsi a lehlabathe ho qoba tšenyo ea pele ho nako ea pompo ea motlakase e ka tlase ho metsi.
4. Sheba hore na boemo ba letlapa la ho kenya welhead le loketse le hore na le khona ho mamella boleng ba yuniti kaofela.
5. Sheba hore na likarolo tsa pompo tse ka tlas'a metsi li phethehile 'me li kentsoe ka nepo ho ea ka setšoantšo sa kopano se bukeng ea litaelo Tlosa skrine ea sefe 'me u potolohe sekopanyi ho bona hore na se potoloha ka mokhoa o bonolo.
6. Hlakola sekoti sa metsi 'me u tlatse lesoba la motlakase ka metsi a hloekileng, a sa cheng (hlokomela. etsa bonnete ba hore u se tlatse), ebe u tiisa sekheo sa metsi. Kamora lihora tse 12 tsa ente ea metsi, khanyetso ea enjene ha ea lokela ho ba ka tlase ho 150M Q ha e lekantsoe ka tafole ea 500V e sisinyehang.
7. Lenonyeletso la thapo, khaola letsoho la rabara la 120mm ho tloha pheletsong e 'ngoe ea thapo e tsoang le thapo e ts'oanang e nang le thipa ea moetsi oa motlakase, ebe u thekesela bolelele ba lithapo tse tharo tsa mantlha ka sebopeho se hatang, ebola mokokotlo oa koporo oa 20mm. lera ka ntle ho terata koporo ka thipa kapa lesela lehlabathe, 'me kenya tse peli tse hokahaneng lipheletsong tsa palirs.Ka mor'a ho tlama lera ka thata-thata ka terata e ntle koporo, solder e ka ho feletseng le ka tieo, le lehlabathe leha e le efe. hlaba ka hodimo. Ebe, bakeng sa manonyeletso a mararo, sebelisa theipi ea polyvester ho a phuthela ka mokhoa o lekaneng bakeng sa lijana tse tharo. Koahela lipheletsong tse peli tsa lesela le phuthelang ka thata ka khoele ea nyion, 'me u sebelise mokhoa oa semi stacked ho thatela theipi ka mekhahlelo e meraro. Koahela lesela la kantle ka theipi e kenang ka har'a khatello e phahameng bakeng sa likarolo tse tharo. Qetellong, phutha likhoele tse tharo hammoho 'me u li phuthe ka makhetlo bakeng sa likarolo tse hlano ka tepi e phahameng ea khatello. Lera le leng le le leng le tlameha ho tlamelloa ka thata, 'me manonyeletso a interlayer a tlameha ho ba a tiileng le a fimm ho thibela metsi hore a se ke a kenella le ho senya sekontiri, Ka mor'a ho phuthela, inela ka metsing ka mocheso oa kamore ea 20'c bakeng sa lihora tse 12, 'me u lekanye ho hanyetsa ha metsi ka tafole e sisinyehang. , e sa lokelang ho ba ka tlase ho 100M Ω

Sets'oants'o sa ts'ebetso ea terata ea cable e kenyellelitsoeng ka tsela e latelang:

8. Sebelisa multimeter ho hlahloba hore na lithapo tsa mekhahlelo e meraro li hokahane le hore na ho hanyetsa ha DC ho batla ho leka-lekana.
9. Lekola hore na matla a potoloho le a transformer a tletse, ebe o hokahanya sesebelisoa sa ts'ireletso ea overload kapa lisebelisoa tsa ho qala. Sheba Tafole ea 2 bakeng sa mefuta e ikhethileng, ebe u tšela bakete ea metsi ka har'a pompo ea metsi ho tsoa sebakeng sa pompo ea metsi ho tlotsa li-bearings tsa rabara ka har'a pompo, ebe u beha pompo ea motlakase e ka tlas'a metsi e otlolohile ebile e tsitsitse. Qala (e seng ho feta motsotsoana) 'me u hlahlobe hore na tataiso ea tsamaiso e lumellana le letšoao la ho tsamaisa. Haeba ho se joalo, fapanyetsana lihokelo leha e le life tse peli tsa mohala oa mekhahlelo e meraro. Ebe u kenya filthara 'me u itokisetse ho theohela selibeng. Haeba e sebelisoa liketsahalong tse khethehileng (tse kang liforo, liforo, linōka, matangoana, matangoana, joalo-joalo), pompo ea motlakase e tlameha ho thehoa ka mokhoa o tšepahalang.

(2) Lisebelisoa le lisebelisoa tsa ho kenya:
1. Para e le 'ngoe ea liketane tse phahamisang lithane tse fetang tse peli.
2. Tripod e nang le bophahamo bo otlolohileng bo sa feteng limithara tse 'nè.
3. Liropo tse peli tse leketlileng (lithapo tsa terata) tse ka jarang boima ba lithane tse fetang e le 'ngoe (li ka jara boima ba sete e felletseng ea lipompo tsa metsi).
4. Kenya lipara tse peli tsa li-clamp (li-splints).
5. Li-wrenches, lihamore, screwdrivers, lisebelisoa tsa motlakase le lisebelisoa, joalo-joalo.

(3) Ho kenya pompo ea motlakase:
1. Setšoantšo sa ho kenya pompo ea motlakase e ka tlas'a metsi e bontšoa ho Setšoantšo sa 2. Litekanyo tse khethehileng tsa ho kenya li bontšoa ho Lethathamo la 3 "Lethathamo la Litekanyo tsa ho Kenyeletsoa ha Pompo ea Motlakase ea Submersible".

2. Lipompo tsa motlakase tse ka tlas’a metsi tse nang le hlooho e ka tlaase ho limithara tse 30 li ka phahamisoa ka ho toba selibeng ho sebelisa liphaepe le lithapo tsa terata kapa lithapo tse ling tsa hemp tse ka khonang ho jara boima bo feletseng ba mochine kaofela, lipeipi tsa metsi, le metsi a liphaephe.

3. Lipompo tse nang le hlooho ea limithara tse fetang 30 li sebelisa liphaephe tsa tšepe, 'me tatellano ea ho kenya e tjena:
① Sebelisa clamp ho tiisa ntlha e ka holimo ea karolo ea pompo ea metsi (enjene le pompo ea metsi li se li hokahantsoe ka nako ena), e phahamise ka ketane e leketlileng, 'me butle-butle e e tlamelle ka selibeng ho fihlela u Beha thipa holim'a seliba ebe u tlosa ketane e leketlileng.
② Sebelisa para e 'ngoe ea li-clamp ho tlamella phala, u e phahamise ka ketane e leketlileng e bolelele ba lisenthimithara tse 15 ho tloha flange, 'me u e theole butle. Pakeng tsa peipi flange le pompo flange Beha pete ea rabara sebakeng 'me u tiise phala 'me u pompe ka ho lekana ka liboutu, linate le lihlatsoana tsa selemo.
③ Phahamisa pompo e ka tlas'a metsi hanyenyane, tlosa sekoti karolong e ka holimo ea pompo ea metsi, tlamella thapo ka thata peiping ea metsi ka tepi ea polasetiki, 'me u e tlamele butle ho fihlela Sekoti se behoa selibeng.
④ Sebelisa mokhoa o tšoanang ho fasa lipeipi tsohle tsa metsi selibeng.
⑤Ka mor'a hore thapo e etellang pele e hokahane le sesebelisoa sa taolo, e hokahane le phepelo ea motlakase ea mekhahlelo e meraro.

(4) Lintho tseo u lokelang ho li ela hloko nakong ea ho kenya:
1. Haeba ketsahalo ea jamming e fumanoa nakong ea ho pompa, fetola kapa u hule phala ea metsi ho hlōla ntlha ea ho jamming. Haeba mehato e fapaneng e ntse e sa sebetse, ka kopo U se ke ua qobella pompo hore e theohe ho qoba tšenyo ea pompo ea motlakase e ka tlas'a metsi le seliba.
2. Nakong ea ho kenya, pente ea rabara e lokela ho behoa ka lehlakoreng la phala e 'ngoe le e' ngoe 'me e tiisetsoe ka tsela e tšoanang.
3. Ha pompo ea metsi e theoleloa ka selibeng, e lokela ho behoa bohareng ba phala ea seliba ho thibela pompo ho matha leboteng la seliba nako e telele, ho etsa hore pompo e thothomele le motor e fiele le ho chesa. .
4. Etsa qeto ea botebo ba pompo ea metsi ho ea tlaase ho seliba ho ea ka lehlabathe le phallang le maemo a silt a seliba. U se ke ua pata pompo ka seretseng. Sebaka ho tloha pompong ea metsi ho ea tlase ho seliba hangata ha se ka tlase ho limithara tse 3 (sheba setšoantšo sa 2).
5. Botebo ba ho kena ha metsi ba pompo ea metsi ha boa lokela ho ba tlase ho limithara tse 1-1.5 ho tloha boemong ba metsi a matla ho ea ho node ea metsi (sheba setšoantšo sa 2). Ho seng joalo, li-bearings tsa pompo ea metsi li ka senyeha habonolo.
6. Phahamiso ea pompo ea metsi e ke ke ea ba tlase haholo. Ho seng joalo, belofo ea heke e hloka ho kenngoa pompong ea metsi ea seliba ho laola phallo ea pompo sebakeng sa phallo e lekantsoeng ho thibela enjene hore e se ke ea tlala le ho cha ka lebaka la likhahla tse kholo tsa phallo.
7. Ha pompo ea metsi e ntse e sebetsa, tlhahiso ea metsi e lokela ho ba e tsoelang pele esita le, hona joale e lokela ho ba e tsitsitseng (tlas'a maemo a sebetsang a lekantsoeng, ka kakaretso ha a na ho feta 10% ea hona joale e lekantsoeng), 'me ha hoa lokela ho ba le ho thothomela kapa lerata. Haeba ho na le ntho e sa tloaelehang, mochine o lokela ho emisoa ho fumana sesosa le ho o felisa.
8. Ha u kenya, ela hloko boemo ba mohala oa motlakase oa motlakase (sheba setšoantšo sa 2). Ha phala ea metsi e le phala ea tšepe, e etelle pele ho tloha ho clamp ea seliba; ha phala ea metsi e le phala ea polasetiki, e etelle pele ho tloha letšoao la motheo la pompo ea motlakase.

Tlhokomelo le Tlhokomelo

1.After the submersible pump is installed, check the insulation resistance and three-phase conduction from the switch again, check whether the instrument and the connection of the start equipment are wrong, if there is no problem, the trial machine can be started, and observe whether the indicator readings of the instrument exceed the rated voltage and current specified on the nameplate after the start, and observe whether the pump has noise and vibration phenomenon. If everything is normal, it can be put into operation.
2. After the first operation of the pump for four hours, the motor should be shut down to test the thermal insulation resistance quickly, and its value should not be less than 0.5 megaohm.
3. After the pump is shut down, it should be started after five minutes to prevent the water column in the pipe from burning due to excessive motor current.
4. After the pump is running normally, in order to prolong its service life, it is necessary to check whether the power supply voltage, running current and insulation resistance are normal on a regular basis.If the following conditions are found, the equipment should be shut down immediately to eliminate the fault:
- Under the rated working conditions, the current exceeds 20%.
- The dynamic water level drops to the inlet section, resulting in intermittent drainage.
- The submersible pump vibrates violently or emits noisy sounds.
- The power supply voltage is lower than 340 volts.
- There is a phase blown out in the fuse.
- The water pipe is damaged.
- The thermal insulation resistance between the motor and the ground is less than 0.5 megaohm.

5. Disassembly device:
- Untie the cable, take off the pipe part and remove the line protection plate.
- Unscrew the drain screw and exclude all water in the motor chamber.
- Take out the filter and loosen the fixing screw on the coupling fixed to the motor shaft.
- Unscrew the bolt connecting the water inlet section and the motor, and separate the pump and the motor (pay attention to the level of the device to prevent the bending of the pump shaft when separating).
- The disassembly sequence of the pump is as follows: (see Figure 1) water inlet section, impeller, shunt shell, impeller, check valve body. When removing the impeller, use special tools to loosen the cone sleeve fixed to the impeller. In the process of disassembly, avoid bending the pump shaft and damaging various parts.
- The disassembly process of the motor is as follows: (see Figure 1) place the motor on the platform, and remove the nuts, base, shaft head lock nut, thrust plate, key, lower guide bearing. seat, and tie rod bolts from the bottom of the motor in order (see Figure 1), and then take out the rotor (be careful not to damage the wiring harness) and finally take out the connector and upper guide bearing seat.
- Assembly unit: before assembly, all parts should be cleaned of rust and dirt, and smear sealant on all the surfaces and fasteners, and then assemble in the opposite order of disassembly (the movement of the motor shaft after assembly is about 1 mm). After assembly, the coupling should be flexible, and then wear the filter for machine test. Submersible pumps shall be taken out of the well for dismantling and maintenance according to Article 5 after a year of operation, or less than a year of operation but two years of diving time, and the worn parts shall be replaced.