IH 型化工泵為單吸單級懸臂式離心泵，采用標準設計，符合ISO2858、ISO3069、ISO3661 標準，是機械工業部確定取代F 型耐腐蝕泵的節能、更新換代產品，效率高，汽蝕性能好，吸入性能好，適合輸送有腐蝕性的液體。廣泛用于化工、石油、冶金、造紙、食品、制藥、合成纖維等部門。
我公司在原 IH 泵基礎上新增了小流量泵和大流量泵，擴寬了IH 泵型譜，使得IH 泵在更寬廣的范圍內得以使用。大口徑的IH 泵流道寬，不易堵塞，特別適合輸送有化學腐蝕的含有污雜物的液體。廣泛用于食品廠、制藥廠、煉廠、化纖、化工等工廠的排污、廢水處理，也可作清水供水用。
性能范圍：流量 6.3～1150m3/h， 揚程 5～125m
工作壓力：≤2.5MPa，即進口壓力+泵揚程≤2.5MPa (鑄鐵材質工作壓力：≤1.6 MPa)
工作溫度：-20℃～80℃
泵型號意義舉例說明：IH80-50-200A
IH——標準化工泵系列產品
80——泵吸入口直徑80 毫米
50——泵排出口直徑50 毫米
200——泵葉輪名義直徑200 毫米
A——同型號葉輪經一次切削，性能參數降低
General Description
IH series pump is a single suction and single stage cantilever centrifugal one for chemical industry use, which
adopts an international standard, being in conformity with the standards in ISO2858、ISO3069、ISO3661. This
product is confirmed by the Mechanical Industry Department of the state to take place F type corrosion – resisting
centrifugal pump (above 50 diameter)for it is an energy – saving novel product. Its efficiency is 3～5% higher than
F type pump, the cavitation residual volume is superior and sucking function is fine, which is suitable to convey the
liquid with erosion, being able to apply on the departments of chemical industry, petroleum, metallurgical industry,
paper making, food, pharmaceutical industry and compound fabric industry etc.
Specifications: Capacity: 6.3～1150m3/h, Head: 5～125m
Working pressure: ≤2.5MPa，i.e. intake pressure + head≤2.5MPa，Casting iron material: ≤1.6 MPa
Working temperature: -20℃～80℃
The meaning of the model: IH80-50-200A
IH—A series of international standard chemical industry centrifugal pump
80—Inlet diameter 80mm
50—Outlet diameter 50mm
200—Nominal diameter of impeller 200mm
A—Impeller cut via the first time, the performance data will be reduced.
2
結構特點
泵主要由泵體、葉輪、密封環、泵蓋、軸、懸架等組成。泵采用后開門結構，可以在不拆進、出口管路的情況下進行檢修，十分方便。泵體是軸向吸入、徑向排出，腳支撐式。泵進出口法蘭尺寸標準采用 GB9113.3-88（1.6MPa），等效于HG20595-97（1.6MPa）。
轉子部件由滾動軸承支撐，軸承用 N32 號機械油潤滑。如需采用黃油潤滑，請在合同中注明。
泵葉輪螺母采用鋼絲螺套防松，有效防止由于泵運行中的振動或反轉造成的葉輪螺母松脫。
油位計采用自動補償油位計，使泵運行中的潤滑得到可靠的保證。
從驅動機端看泵，泵為順時針方向旋轉。
泵過流部件可采用的材質： 1Cr18Ni9、1Cr18Ni9Ti、1Cr18Ni12Mo2Ti、304、304L、316、316L、904、
20#合金、CD4MCu、哈氏合金等，并可按用戶使用要求選用其他材質。
Feathers of Structure
The pump consist of pump casing, impeller, sealing ring, pump cover, shaft and bearing house etc. The
pump adopts a structure of rear-door, for facilitating maintenance without dismantling pipe system of inlet and
outlet. Much convenience in application.
The pump casing is designed with feet below, and discharge is positioned upward, suction in the axial.
The size of the pump flange adopts GB9113.3-88（1.6MPa），equivalent to HG20595-97（1.6MPa）.
Rotor part is supported by rolling bearings, the bearing uses N32 machine oil for lubrication, if you want to
use grease for lubrication, please make a note in the ordering.
The impeller nuts adopt steel spacer for preventing loose, which can effectively prevent loose and misplace of
the impeller nuts due to the vibration in the operation and reverse rotation.
Oil meter adopts automatic making-up type, so to guarantee the lubrication during operation, thus raising up
the lifetime of the pump.
Viewing from the end of driver, the rotation direction of the pump is in clockwise.
The material of parts which contact with liquid are made by 1Cr18Ni9、1Cr18Ni9Ti、1Cr18Ni12Mo2Ti、304、
304L、316、316L、904、alloy 20#、CD4MCu、Hasloy alloy etc. we can also adopt the other corrosion-resistance
materials according to user' s requirement.
軸 封
泵軸封形式有填料密封、單端面機械密封和雙端面機械密封。若泵進口壓力較大時，宜選用平衡型機
械密封。
填料密封主要用于場地清潔要求不高允許有少量泄露的場合，若輸送的介質易結晶或含有顆粒也宜采
用填料密封。
3
機械密封密封性能可靠，泄漏量小，使用壽命長。它分為單端面機械密封和雙端面機械密封，其中雙
端面機械密封適用于高溫、易燃、易揮發有毒介質，以及強腐蝕、帶懸浮顆粒，易結晶和有纖維的介質。
單端面機械密封內部設有自沖洗結構。雙端面機械密封需外接沖洗液。沖洗液根據泵輸送介質及溫度、
壓力等工作條件不同而不同，沖洗液可用清潔水或本身輸送的介質，若介質的溫度高或含有顆粒雜質時，
應先對介質進行冷卻、過濾后才能通入密封腔。沖洗液的壓力應高于密封腔前的壓力的0.05～0.1Moa，起
動泵前，需先打開沖洗冷卻系統，停車后才能切斷沖洗冷卻系統。
沖洗液壓力：泵進口壓力+泵揚程×45%
（對非平衡型機封，沖洗液壓力zui高不超過0.8MPa）
沖洗液溫度 Flush liquid temperature:＜40℃
沖洗液流量按下表 Flush liquid capacity:
機械密封規格（mm）
Mechanical seal specification
＜45 45～60 60～80
沖洗液流量（升/分）
Flush liquid capacity(L/m)
4 5 7
Shaft Sealing
The shaft sealing adopt with stuffing sealing, single mechanical sealing, or double –end mechanical sealing. In
case that the pump suction pressure is bigger, it is advised to select balance mechanical sealing.
The stuffing sealing is used in the case that the requirement for site in clearance is not strict and a little
leakage is permissible. Or in case that the liquid conveyed is easily crystallized or contained with grain, it is also
advised to use stuffing sealing.
The mechanical sealing is characterized by the function reliable, leakage less and life time longer. It divides
single mechanical sealing and double mechanical sealing. In which the double mechanical sealing is suitable to
apply on the occasions in high temperature, being flammable, easily blasting, and easily volatilizing poisonous
agent and with strong erosion, with suspending particles, easily crystallized and with fabric agent.
There sets up an automatic flush device in the inside of single mechanical sealing. Whereas the double
mechanical sealing needs connecting with the outside for flush liquid, which is various in degree due to the
difference in pumping liquid, temperature and pressure etc. working conditions. The flush liquid takes clear water
or medium pumped. In case that the temperature of the agent is high or contained with grain, it should conduct
cooling proceed to the agent first, after filtering then getting through into sealing cavity. The pressure of washing
liquid should be 0.05～0.1MPa higher than the pressure in the front of sealing cavity. Before starting the pump, it
needs to open washing and cooling system at first, and not to cut off that system before stopping operation.
Flush liquid pressure: Pump suction pressure + Head×45%
(Maximum not above 0.8MPa for unbalance mechanical sealing)
4
使用說明
1.使用前的準備
（1）水泵安裝完畢后，必須經過一次全面性的檢查，特別要檢查管路和泵體內是否有小零件、小工具、
紙墊、木塊等物在里面，檢查基座固定螺栓是否旋緊，用皮帶傳動的空間和邊緣不能擱置物體。
（2）將機組外部各處的油膩、穢物擦干凈。
（3）對于用稀油潤滑的泵，往懸架油箱內加入
N32 號機械油。切勿加多油，以免漏油。
（4）用手轉動聯軸器或拉動皮帶輪應感覺輕快，
松緊要均勻。
（5）當泵處于倒灌情況下時，打開吸入管路閘閥，
引液體到泵內。如非倒灌情況，則需引入液體灌泵。
（6）檢查出水管閘閥、壓力表及進水管的真空表
的安裝是否正確？并將旋塞閑上 (如果泵上裝有這些
附件)。
（7）檢查原動機與水泵的旋轉方向是否相同（原
動機回轉方向在安裝時已試驗確定）。水泵避免反
轉以免葉輪螺帽等因反轉松開（泵只能開動動力機作
瞬時轉動檢查其轉向）。
2.起動與停止
（1）準備工作完畢后啟動原動機，并打開壓力
表旋塞。如為皮帶傳動，先將水泵開在750 轉/分，待動力機熱后再開到額定轉數。
（2）當水泵以全轉數工作時，壓力表顯示適當壓力，然后打開真空表旋塞并且慢慢的打開排水管路上
的閘閥到需要的范圍為止（即壓力達到預計的水泵揚程的壓力時）
（3）當要停止水泵時，慢慢關閉排水管路閘閥，關閉真空表旋塞，并停止原動機，然后關閉壓力表旋
塞。如為皮帶傳動，先將水泵開在750 轉/分鐘以下運轉約5 分鐘再停車。如果所處的環境，外界溫度是0℃
或低于0℃時，應把泵內的積水和水管內積水放盡，以免凍裂。
3.機械密封使用說明
（1）裝拆機械密封時應仔細，保持密封零件的干凈和光潔。
（2）動環、靜環端面絕不能劃傷，碰破。裝配時密封面上涂一層清潔機油。
（3）使用雙端面機械密封時，應有單獨的密封沖洗系統，參見第3 頁。起動前，需先打開密封沖洗系
統，停車后才能切斷密封沖洗系統。
5
Description of Use
1.preparation before use
(1)The pump must be through a comprehensive examination after installation, especially inspect if there are
small tools and spares, spacers of paper and wood blocks inside the pipeline and casing. Inspect if the fixing screws
of foundation are tightened. Don, t put matters in the space and the verge of which driven by belt.
(2)Clean the filth and greasiness of the surface of unit.
(3)Pour the machine oil into the bracket oil box of the pump which lubricated by thinner oil.
(4)Rotate the shaft coupling or draw the belt pulley by hand should feel lightly and freely, and the degree of
tightness must be even.
(5)In case that the pump is pumping up liquid, to open up the gate valve of inlet pipe route to draw in liquid to
the inside of the pump. If not in the same case, it is necessary to draw in liquid to fill it in the pump.
(6)Check to see if the installations of the gate valve of drain pipe, pressure gauge and vacuum meter are
correct, and close the cock. (If the pump fix these accessories).
(7)Inspect if the direction of the rotation of the shaft and motor is identical. (The direction of the motor had
been tested when the motor installed.)The shaft absoluy can, t be reverse to avoid the impeller nut
loosen.(Inspect the steering of the shaft which drive by claw coupling is only by means of drive the motor to do
instantaneous rotation.)
2. Starting and stop.
(1)After preparation is completed, start the power and open the cock of the pressure gauge. If it is driven by
belt, start the pump to 750r.p.m then start to rated speed when the power heat.
(2)When the pump work with total speed, the pressure gauge shows suitable pressure, then open the cock of
the vacuum meter, and slowly open the gate valve on the drainage pipeline until the range which is required.
(3)When the pump will be stopped, slowly close the gate valve on the drainage pipeline, close the cock of the
vacuum meter, and stop the power, then close the cock of the pressure gauge. If it is driven by belt, lower the speed
to below 750r.p.m. for five minutes before stop. If the ambient temperature does not exceed 0℃, must drain out
entirely the water in the pump and the pipe, so as to protect the pump from cracking the caused by freezing.
3. Description of mechanical seal
(1)Install or dismantle the mechanical seal must be careful, to keep clean and polish of sealed parts.
(2)It is absoluy not make scratch or damage on the surface of rotating seal ring or stationary seal ring. When
installing it should apply a layer of clean machine oil on it.
(3)When using the double mechanical seal, it should have an exclusive sealing flush system, refer to page 3.
Before starting, it is necessary to open flush system for the sealing. It is to cut off sealing flush system only when
the operation is stopped.
6
運轉及維護保養
1. 泵只允許在規定的參數范圍內運轉。
2. 注意水泵軸承溫度不應超過外界溫度35℃，zui高溫度不應大于80℃。
3. 在水泵工作的*個月內，經100 小時后，更換懸架內的潤滑油，以稀油潤滑的泵每工作1500 小時
換油一次，黃油潤滑的在2000 小時換油一次。
4. 定期檢查彈性聯軸器，如果彈性件磨損或聯軸器體損壞應及時更換。
5. 注意電動機軸承溫升以及電機的三相電流。
6. 運轉過程中，如發現噪音或不尋常聲音時，應立即停車，檢查其原因。
7. 如果長期停止使用水泵，水泵應拆卸，擦凈內部水份，轉動部份涂抹上黃油或防銹漆，包裝保管好。
8.水泵工作每經2000 小時應進行周期檢查，零件如有磨損壞的必須更換。
葉輪與密封環配合的zui大間隙如下，超過此值必須更換密封環。如果葉輪的密封環位磨損嚴重，葉
輪也應更換。
泵進口直徑 直徑方向的zui大間隙值
≤DN125mm 1.5mm
≥DN150mm 2mm
Operation and Maintenance
1. The pump must operate only in the range of a set parameter.
2. Pay attention to the bearing temperature does not exceed the ambient temperature as 35℃ or by 80℃ at
most.
3. In the first month of the pump running, renew the lubricating oil after 100 hours, henceforth renew the oil at
intervals of 1500 hours, and renew the grease at intervals of 2000 hours.
4. A periodical inspection of the coupling should be made, pay attention to the temperature rise of the motor
bearing.
5. Stop the pump for inspection when discover noise or abnormal sounds in running.
6. When the pump is to be out of service for a long time, it is necessary to have the pump dismantled, wipe
inside dry, and apply grease or rust prevention to the rotator, and keep them well.
7. After every 2000 hours of operation a periodical inspection of the pump should be made. The parts which
have been worn–out should be replaced. The clearance of the cooperation between the impeller and sealing ring is;
the pump which suction diameter does not exceed 100mm, the maximum in direction of diameter is 1.5mm; the
pump which suction diameter does not lack 150mm, the maximum is 2mm exceed the numerical value must
replace sealing ring.
7
附：泵軸承型號及機械密封安裝尺寸
Addition: The bearing of pump and installation dimensions of mechanical seals
軸承型號
Bearing Model
機械密封
泵 型 號Mechanical seals
Pump model 型號
Model
數量
Qty.
型號
Model L
IH25-25-180, IH40-32-225, IH50-32-125, IH50-32-160,
IH50-32-200, IH65-50-125, IH65-50-160, IH65-40-200,
IH80-65-125, IH80-65-160, IH80-50-200, IH100-80-125
305 2 59U - 35 45
IH50-32-250, IH65-40-250, IH65-40-315,
IH80-50-250, IH80-50-315, IH100-80-160,
IH100-65-200, IH100-65-250, IH125-100-200
307 2 59U - 50 60
IH100-65-315, IH125-100-250, IH125-100-315,
IH125-100-400, IH150-125-250, IH150-125-315,
IH150-125-400, IH200-150-250
310 2 59U - 60 56.5
IH200-150-315, IH200-150-400
IH300-250-370
311 2 59U - 70 67
雙端面機械密封結構圖
Double mechanical seal
單端面機械密封結構圖
Single mechanical seal
8
可能發生的故障及解決方法
故障 原 因 解 決 方法
泵不抽吸，壓力表的指針
劇烈跳動。
● 注入泵中的水不夠；
● 進水管道漏氣。
● 再往泵內注水；
● 排除漏氣現象。
泵不吸水，真空表顯示高
度真空。
● 底閥沒有打開或堵塞；
● 吸水管阻力太大；
● 泵安裝太高。
● 校正或清洗底閥；
● 清洗或更換吸水管；
● 降低安裝高度。
出液管壓力表顯示有壓
力而出液管道仍不出液
● 出液管道阻力太大；
● 旋轉方向不對；
● 葉輪淤塞；
● 水泵轉速不夠。
● 檢查出液管道；
● 改變驅動機轉向；
● 清洗葉輪；
● 增加水泵轉速至額定值。
流量低于正常。 ● 泵淤塞；
● 密封環磨損過多；
● 水泵轉速不夠。
● 清洗泵及管道；
● 更換密封環；
● 增加水泵轉速至額定值。
泵消耗的功率過大。 ● 填料壓蓋太緊；
● 葉輪磨損；
● 泵供水量過大。
● 調松填料壓蓋；
● 更換葉輪；
● 關小出液閥門降低流量。
泵在工作過程中出現異
常聲音，流量降低，直到
不出液。
● 出液閥門開得太大；
● 吸入管道阻力過大；
● 吸入高度過高；
● 在吸入管道有空氣滲入。
● 關小出液閥門降低流量；
● 檢查吸入管道；
● 減小吸入高度；
● 排除漏氣現象。
泵振動。 ● 泵軸與驅動機軸不在同一中心線上。
● 流量過大泵發生汽蝕。
● 校準泵和驅動機的軸的同心度。
● 調節出水閘閥，使之在規定的性能
范圍內運轉。
軸承過熱。 ● 潤滑油少或潤滑油太臟；
● 泵軸與驅動機軸不在同一中心線上；
● 贓物或水浸入軸承；
● 軸承被軸承蓋壓得太緊。
● 注油或換油；
● 校準泵和驅動機的軸的同心度；
● 清洗軸承或更換潤滑油；
● 軸承蓋下加紙墊調整。
9
The Possible Malfunctions and Solutions
Malfunctions Causes Solutions
Failure to suck water,
the pointers of pressure
meter and vacuum
meter beat violently
● The priming water is not enough.
● The suction pipe or instruments
leak air.
● Prime the pump with water.
● Plug the leak.
Failure to suck water,
the vacuum meter has
display high vacuum.
● Foot valve does not be opened or is
dirty.
● Resistance of the suction pipe is
very large.
● The pump is installed too high.
● Check the foot valve.
● Replace the suction pipe.
● Reduce the suction lift.
The pressure is enough,
but failure to draw water.
● Resistance of the discharge pipe is
very large.
● The direction of the rotary is
incorrect.
● The impeller flow passage is
clogged .
● Speed is low.
● Check the discharge pipe.
● Change the direction of motor.
● Clean the impeller.
● Increase the speed to rated value.
The capacity does not
attain the requirement
● The pump is blocked up.
● The sealing ring is wore out.
● Speed is low.
● Clean the pump and pipe.
● Replace the sealing ring,
● Increase the speed to rated value.
Too much power
consumption.
● Packing gland is too tight.
● Impeller worn out.
● The capacity is too large.
● Adjust the packing gland.
● Replace the impeller.
● Adjust the gate valve to reduce
capacity.
Abnormal sounds
appear during operation,
and failure to pump
water.
● Gate valve is opened too much.
● Resistance of suction pipe is too
much.
● Suction lift is too high.
● Suction pipe leak air.
● The temperature of pumped liquid is
too high.
● Adjust the gate valve to reduce
capacity.
● Check the suction pipe and foot
valve.
● Reduce the suction lift.
● Plug the leak.
● Lower the temperature of liquid
The pump vibration ● Pump and the motor axis are not in
alignment.
● Cavitation caused by too large
capacity.
● Adjust it in alignment.
●Adjust the gate valve to reduce
capacity.
The bearing is too heat. ● There is not oil, or the oil is very
dirty.
● Pump and the motor axis are not in
alignment.
● Filth and water soak into bearings.
● The bearing is pressed too tight by
bearing cover.
● Filling oil or renewing oil.
● Aligning it in alignment.
● Cleaning bearings or renewing
lubricant.
● Suitable put paper gasket under
the bearing cover.
10
泵結構圖
Sectional Drawing
1、泵體 2、密封環 3、葉輪螺母 4、葉輪 5、泵蓋
6、填料 7、填料環 8、機械密封 9、填料壓蓋 10、機封端蓋
11、軸套 12、防塵盤 13、中間支架 14、軸承前蓋 15、軸承
16、氣孔蓋 17、油位計 18、軸 19、懸架 20、軸承后蓋
1. Pump casing 2. Sealing ring 3. Impeller nut 4.Impeller
5. Pump cover 6. Packing 7. Packing ring 8. Mechanical seal
9. Packing gland 10. Mech. seal gland 11. Shaft sleeve 12. Dust deflector
13. Bearing bracket lantern 14. Bearing front gland 15. Bearing 16. Air hole cover
17. Oil meter 18. Shaft 19. Bearing house 20. Bearing tail gland
附 2：各種閥及彎管折合直管長度
種類 折合相當直管直徑倍數 備 注
全開閘閥 13 未全開加倍
標準彎管 23
逆止閥 100
底閥 100 部份堵塞加倍
例如：直徑 100 毫米管所配底閥折合該管100 倍直徑等于100×100=10000（毫米）=10（米），假定流量
為54m3/h，從附表1 查得該種管每100 米長損失6.8 米揚程，則10 米損失0.68 米，即一個直徑為100 毫
米的底閥，當流量為54m3/h 時，揚程損失0.68 米。
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附3：泵基本參數知識
1、流量Q
離心泵的流量即為離心泵的送液能力，流量是泵在單位時間內輸送出去的液體量（體積或質量）。
泵的流量取決于泵的結構尺寸(主要是葉輪的直徑與葉片的寬度)和轉速等。實際使用時，泵實際所能
輸送的液體量還與管路阻力及所需壓力有關。
常用流量單位： m3/h (每小時立方米)，L/s（每秒升），m3/s（每秒立方米）等。
計量單位換算：1L/s=3.6m3/h=0.06m3/min=60L/min
國外容積單位常用加倫（gallon），1 加倫（英制）= 4.546 升，1 加倫（美制）= 3.785 升
2、揚程 H
離心泵的揚程又稱為泵的壓頭，揚程是泵所抽送的單位重量液體從泵進口處（泵進口法蘭）到泵出口
處（泵出口法蘭）能量的增值。即單位重量液體通過泵所獲得的能量叫揚程。泵的揚程包括吸程在內，近
似為泵出口和入口壓力差。目前對泵的壓頭尚不能從理論上做出的計算，一般用實驗方法測定。
泵的揚程大小取決于泵的結構(如葉輪直徑的大小，葉片的彎曲情況、轉速等)。
揚程用 H 表示，即泵抽送液體的液柱高度，單位為米。泵的壓力常用MPa（兆帕）、kg/cm2 (每平方厘
米公斤)表示。1MPa=1000kPa=145Psig (磅/英寸2)=10kg/cm2, 1kg/cm2=10m， 1bar=0.98 kg/cm2
3、轉速 n
轉速是泵軸單位時間的轉數，用符號n 表示，單位是r/min（每分鐘轉速）
4、汽蝕余量 NPSH 和吸程
液體在一定溫度下，降低壓力至該溫度下的汽化壓力時，液體便產生氣泡。這種產生氣泡的現象稱為
汽蝕。20℃常溫清水的汽化壓力為0.0238kg/cm2，所以常溫20℃清水當壓力降到0.0238kg/cm2 就開始汽化。
NPSHa——裝置汽蝕余量，是由吸入裝置提供的，是指在泵吸入口處單位重量液體所具有的超過汽化
壓力的富余能量。NPSHa 越大泵越不容易發生汽蝕。
(NPSH)r——泵的汽蝕余量，也稱必需汽蝕余量，表示泵進口部分到葉輪處被加壓前的壓力降。NPSHr
越小，表示壓力降小，要求裝置必須提供的NPSHa 小，因而泵的抗汽蝕性能越好。
吸程=標準大氣壓(10.33 米)—汽蝕余量—安全量(0.5 米）。例如：某泵必需汽蝕余量為4.0 米，吸程=10.33
—4.0—0.5=5.83 米
5、功率 N
泵的功率通常是指輸入功率，即原動機傳至泵軸上的功率，故又稱為軸功率，用P 或N 表示。
P=QH×9.8/(3600η) （kW） (Q 單位：m3/h， H 單位：m)
單位換算：1kW = 1.36HP (馬力), 1 馬力 = 0.735kW
6、效率η
泵在輸送液體過程中，軸功率大于排送到管道中的液體從葉輪處獲得的功率，因為容積損失、水力損
失、機械損失都要消耗掉一部分功率，而離心泵的效率即反映泵對外加能量的利用程度。常用η表示。
泵的效率值與泵的類型、大小、結構、制造精度和輸送液體的性質有關。大型泵效率值高些，小型泵
效率值低些。
