一、 概 述
Ⅰ、Summary
CFZ型泵為船用臥式自吸污水泵用于船舶生活污水處理裝置中粉碎原污水。水溫為常溫,泵的過流部件均采用鑄銅件、不銹鋼材料。故本泵也可用于輸送海水。
The CFZ type pump is marine horizontal self-priming sewage pump ,which is used to crush the raw sewage in the ship sewage treatment plant. Water temperature to be room temperature, the pump flow parts are made of bronze pieces or stainless steel materials. This pump can also be used to transport water.
二 、結(jié)構(gòu)型式
Ⅱ、Stureture
本泵為帶刀離心泵。粉碎刀安裝在泵體內(nèi),與葉輪上的帶刃葉片組合成粉碎刀組。污水殘渣經(jīng)過刀組的剪切,并且多次循環(huán),被粉碎成細小顆粒的污泥殘渣。泵的軸封采用機械密封,泵體頂部和底部分別裝有注水、放泄的螺塞。
This pump is centrifugal pump with the knife. Crush knife installed in the pump body and impeller edged blade into the crush blade unit. Sewage residue after shear knife, and recycled many times, was crushed into fine particles of sludge residue. Pump shaft seals use mechanical seal, pump top and bottom, respectively,equipped with water injection plug and the drain plug.
泵的結(jié)構(gòu)圖見圖1:
Stureture drawing of the pump:
圖1 Fig.1
三、裝配與拆卸
Ⅲ、Assembly and disassembly
(一) 裝配:
(一)Assembly :
1.預先將紙墊、密封圈等分別放置在相應的零件上;
1.Put spacer and seal ring in the relevant part;
2.將密封環(huán)、靜刀裝入泵體內(nèi);
2.Put the seal ring, static knife into the pump body;
3.將泵軸套在電機軸上,然后將托架與電機連接,擰緊螺母;
3.The shaft sleeve fitted on the motor shaft, and then the bracket is connected to the motor, tighten the nuts;
4.將泵蓋套在泵軸上,裝上葉輪,裝上機械密封,擰緊葉輪螺母;
4.Pump cover fitted on the pump shaft, impeller fitted, mechanical seal fitted ,tighten the impeller nuts;
5.將泵體與托架連接,擰緊螺母;
5.Pump and bracket to be connected, tighten the nuts;
6.裝好進水段和出水段,擰緊螺母;
6.Fitting the suction connector and the discharge connector, tighten the nuts;
7.最后將泵組和電機安裝在公共底座上。
7.Finally, the pump and motor are mounted on a common base.
(二)拆卸:
泵的拆卸順序與裝配順序相反。
(二) Disassembly
The disassembly order is contrary to the assembly order.
四、安裝
Ⅳ、Installation
泵的安裝好壞對泵的運行和壽命有重要影響,所以安裝和校正必須仔細。
The installation of pump could affect the running and service life of pump. Therefore, it is necessary to be careful during installation and adjustment.
1. 檢查水泵和電機有無損壞,檢測基礎(chǔ)尺寸,準備工具。
1. Inspect the motor and pump to check if there is any failure and inspect the main dimension,prepare tools.
2. 把泵組水平地安置在基座上,用螺栓鎖死。
2. Install pump on the installation base, and loosen the bolt.
3. 泵進口處裝接管時必須有一可拆短管(約200mm)以便清除吸口的堵塞物。
3. The pump inlet must have a removable short pipe (approximately 200mm) in order to eliminate the obstruction of the suction.
4. 安裝管路時,必須使管路重量、彈性力等不得直接加在水泵上。
4. Make sure that the weight and flexible force of pipe do not act on pump directly while installing pipe.
五、 使用及維修保養(yǎng)
Ⅴ.Service and Maintenance
使用要求
Requirements of service
1. 啟動前,必須先盤動泵軸,確信轉(zhuǎn)子無卡住及摩擦現(xiàn)象。
1.Turn the pump axle to make sure there is no block or friction of rotor before starting the pump.
2. 檢查泵與管路結(jié)合是否松動。
2.Check whether the connection between pump and pipe is loosened or not.
3. 泵吸入管路底部應安裝截止止回閥,確保其操作靈活。
3.Check valve should be installed in the bottom of suction pipe of pump to make sure operation is prompt.
4. 啟動前,必須打開泵體頂部螺塞或放氣閥,向泵內(nèi)灌水,待水冒出后,再旋緊螺塞或關(guān)閉放氣閥。
4.Before starting,you must open the pump body top thread plug or air-release valve.Then pour water into the pump body.After water is emitted,you must screw the thread plug or close the air-release valve.
5. 點觸電動機,檢查電機轉(zhuǎn)向是否與泵轉(zhuǎn)向標志一致。確定轉(zhuǎn)向一致后,全開吸入閥,啟動電機,待泵出口壓力上升后逐漸調(diào)節(jié)排出閥至規(guī)定的出口壓力。
5.Skimming the motor,check to see if the direction of rotation is correct. Fully open the suction valve and start the motor after the rotation to be determined consistent. Adjusting the discharge valve to the required outlet pressure after the pump outlet pressure rising gradually.
6. 停車后應關(guān)閉排出閥。在運轉(zhuǎn)中若突然停電,則應先斷電源,后關(guān)閉排出閥。
6.Discharge valve should be closed after cutting off the electric motor. Cut off power first, then close discharge if the electricity is cut off suddenly during the running.
7. 泵應保持在推薦的允許流量范圍內(nèi)運行,此范圍一般為額定流量的50%-120%。
7.Pump should run in the recommendatory allowable flow range. General speaking, the range is 50%~120% rating flow.
8. 注意不要在排出閥關(guān)閉的狀態(tài)下長期運轉(zhuǎn)。
8.Do not let pump run for long in the circumstance of discharge valve closed.
維修保養(yǎng)
Maintenance
1. 應定期檢查泵吸入管路中的止回閥的密封性,若因止回閥漏水或其它原因,泵內(nèi)未充滿水,泵啟動后出口建立不起壓力,則應立即停車,避免泵空轉(zhuǎn)而造成損壞。
1.Check the sealing of non-return valve of pump in the suction pipe regularly.The check valve leaks,so that the pump isn’t full of water and the exit pressure isn’t existent were this to happen,you must stop running to avoid the pump is damaged on account of idling.
2. 在運轉(zhuǎn)中,如發(fā)現(xiàn)有異常聲響和振動時,應立即停車。
2.Stop the pump to check if there is any abnormity noise or vibration during operation.
3. 長期停止使用時,應打開放水螺塞,將泵內(nèi)的剩水排盡。
3.Release discharge bolt to discharge the retained water if the pump will not be used for long.
4. 機械密封每半年檢查一次,必要時予以更換,以保持其泄漏量≤10ml/h。
4.Mechanical sealing should be inspected once half a year. Replace them if necessary to make sure discharge is less than 10 ml/h.
六、常見故障原因及排除方法
|
故 障 |
原 因 |
解 決 方 法 |
|
1.水泵不吸水,壓力表及真空表的指針在劇烈擺動。 |
注入水泵的水不夠,水管或儀表漏氣。 |
再往水泵內(nèi)注水或擰緊堵塞漏氣處。 |
|
2.水泵不吸水,真空表表示高度真空。 |
底閥沒有打開,或已淤塞。吸水管阻力太大,吸水管管徑太小。 |
檢查或更換底閥。清洗或更改吸水管,減低吸水高度。 |
|
3.壓力表顯示水泵出口處是有壓力,然而水仍不出水。 |
出水管阻力太大,旋轉(zhuǎn)方向不對,葉輪淤塞。 |
檢查或縮短出水管及檢查電機轉(zhuǎn)向。清洗葉輪。 |
|
4.流量低于預計值 |
水泵淤塞,密封環(huán)磨損過多。 |
清洗水泵及管道。更換密封環(huán)。 |
|
5.水泵耗費的功率過大。 |
泵軸與電機軸不在同一條中心線上。葉輪磨損。 |
調(diào)整電機與泵軸中心線。更換泵軸,更換葉輪。 |
|
6.水泵內(nèi)部聲音反常,水泵吸不上水。 |
流量太大,吸水管阻力過大,吸水高度過大,在吸水處有空氣漏入,所輸送的液體溫度過高。 |
增加出水管阻力以減低流量,檢查泵吸水管內(nèi)阻力,檢查底閥減小吸水高度。擰緊堵塞漏氣處,減低液體的溫度。 |
Ⅵ.Reason of Normal Failure and Solution
|
Failure |
Reason |
Solution |
|
1.Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely. |
The filled water is insufficiency. There is leakage in water pipe or instrument. |
Fill water to the pump or screw the leakage. |
|
2.The pump could not suction water. And the vacuum gauge shows highly vacuum condition. |
The bottom valve isn’t open or is stagnated. The resistance of suction pump is too large. The diameter of suction is too large. |
Check or replace the bottom valve. Clean or adjust suction pipe. Lower the suction water position. |
|
3. The pressure gauge shows pressure in the outlet, however, there is no water. |
Resistance in the outlet pipe is too large. The rotation direction is wrong. The impeller is stagnated. |
Check the outlet pipe or short the length. And check the running direction of electric motor. Clean the impeller. |
|
4.The capacity is less than the specified value. |
The pump is stagnated. The sealing ring wears too much. |
Clean the pump and pipe. Replace the sealing ring. |
|
5.The actual power of pump is too high. |
The pump axial and electric motor axial are not in the same line. Impeller is worn too much. |
Adjust the axial line of pump and electric motor. Replace pump axial. Replace impeller. |
|
6.Abnormal noise in the pump. Pump could not suction water. |
The capacity is too large. Resistance in the suction pipe is too large. The suction pipe position is too high. There is leakage in the suction place. The temperature of transported media is too high. |
Add the resistance in the outlet to lower the capacity. Check the resistance in the suction pipe of pump. Check the bottom valve and lower the high of suction position. Screw the leakage. Lower the temperature of liquid. |