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          混流泵
          混流泵


          一、 概述

          SUMMARIZATION

          HW蝸殼式混流泵按國家標準最新系列而設計的高效節能產品。其性能指標均達到國際先進水平,省材節能效果顯著。

          HW Spiral Mixed-flow Pump is an efficient pump designed by latest national standard.The performance indexes have been upto the international advanced level and the material and energy saving result is remarkable.

          (一) 用途︰

          HW型混流泵為臥式、單級、單吸、懸臂蝸殼式混流泵,適用于農田排灌、工業、城鎮給排水及船塢、碼頭引水等。

          I. Application:

          HW Spiral Mixed-flow pump is a horizontal type, single stage, single suction and cantilever spiral mixed flow pump, which is used for farmland irrigation and drainage, industry, town water supply and drainage and water diversion of docks.

          (二) 特點︰

          體積小、重量輕、流量大、效率高,抗汽蝕性能好,高效區範圍寬廣而平坦,結構簡單,使用方便,維修容易。

          II. Characteristic:

          Small in size, light weight, large flow, high efficiency, good anti-cavitation performance, board and flat efficient areas, simple structure, easy operation, easy maintenance.

          (三) 型號說明︰

          250HW-8為例︰

             250—泵進(出)水口直徑為250毫米。

             8—泵總揚程為8米。

             III.    Type Instruction:

                    Take 250HW-8 for an example:

                     250-The diameter of inlet /outlet of pump is 250mm.

                     8-The total head of pump is 8m.

             (四)水泵的傳動方式

                    我廠生產的HW型系列混流泵均可用柴油機、電機帶動,其傳動方式視各地區動力情況而定,訂貨時根據原動機的型號(功率、轉速)確定水泵的傳動方式,以確定皮帶輪的大小或聯軸器的規格。

            IV.    Drive Mode of Pump

                  Our HW seriel mixed-flow pump can be driven by diesel engine and motor.The drive mode can be chosen according to the local motive power situation. When placing an order for the pump, we should decide the drive mode of the pump according to the prime motor type(power, rotate speed) in order to confirm the size of pulley or coupling.

           (五)水泵轉向

                    從水泵進水口看葉輪為逆時針方向旋轉(即箭頭所示方向旋轉。)

          V.    Pump Diversion

                Look from inlet of pump, the impeller is turning clockwise(turning as the direction indicated by rotation arrow)

          二、結構及作用說明

          Instruction of Structure And Application

          (一)HW型混流泵由泵體、泵蓋、葉輪、泵軸和軸承體等主要零件構成。

           I. HW Mixed-flow pump is composed of pump casing, pump cover, impeller, pump spindle and bearing body mainly.

          (二)泵蓋是泵與進水管相連的零件,其端面與葉輪之間留有規定的軸向端面間隙(在消除軸承軸向活動間隙以後,保持規定的軸向間隙)。間隙過小產生磨擦,過大則會導致泵內壓力水回流,使泵的效率降低,通過增減調整紙墊達到規定的間隙。

          II.  Pump cover is the part connected with water inlet pipe.There is an stated axial end face gap between its end

          face and impeller(Keep the stated axail gap after removing the bearing axial movable gap).Friction will be

          produced if the gap is too small, contrary, if the gap is too large, the pressure water in pump will reflux which

          makes the feeiciency reduced.Adjust the paper washer and make the gap be stated one.

          (三)密封裝置是由填料函、水封圈、填料壓蓋和鉛粉(或油浸)石棉盤根填料組成。其作用有︰

              1、啟動時防止空氣吸入泵內,起密封作用。

              2、抽水時防止水從泵內過多的沿軸大量流出。

          III. Sealing equipment is composed of stuffing box, water seal, packing gland,lead powder(or oil immersed)

          asbestos packing padding.Its use is as follows:

              1. When starting, stop the pump from sucking air and realize the sealing function.

              2. When drawing water, stop the water running out through the axle from pump.

          (四)軸套用來保護軸不使它與填料直接摩擦,若長期使用中發現軸套磨損過多,必須換軸套。

          IV. Axile sleeve is used to protect the axle from friction with padding.In long term using, change the axile sleeve

          when the sleeve wears down too much.

          (五)水泵軸的兩個支承是軸承體內的軸承,軸承體內存有適量潤滑脂以潤滑軸承。

          V. Two supportings of water pump axile are bearings in bearing body.There is some lubricating grease in bearing

          body for lubricating bearing.

          (六)軸上的擋水圈可防止水沿泵軸流入軸承體內,從而保護軸承,處長使用壽命。

          VI.The water deflector of axile can stop the water running into the bearing body through the pump axile which

          can protect the bearing and lengthen the service life .

          三、性能表

          混流泵主要技術規格 

           

          型號

           

          流量Q

          揚程

          H

          m

          轉速

          n

          r/min

          效   率

             η

          %

          功率P

          汽蝕余量

          NPSH

          m

          l/s

          m?/h

          軸功率

          kw

          配套功率

          kw

          100HW -8

          25

          90

          8

          2900

          81

          2.42

          3

          4.0

          100HW-12

          25

          90

          12.5

          2900

          81

          3.78

          5.5

          4.0

          150HW-5

          50

          180

          5

          1450

          82

          2.99

          4

          2.7

          150HW-8

          50

          180

          8

          1450

          82

          4.78

          7.5

          2.7

          150HW-12

          50

          180

          12.5

          2900

          82

          7.47

          11

          6.0

          200HW-5

          100

          360

          5

          1450

          81.5

          6.01

          7.5

          4.0

          200HW-8

          100

          360

          8

          1450

          83.5

          9.39

          11

          4.0

          200HW-12

          100

          360

          12.5

          1450

          83.5

          14.68

          18.5

          4.0

          250HW-5

          150

          540

          5

          980

          82

          8.97

          15

          4.0

          250HW-8

          150

          540

          8

          980

          84

          14.01

          18.5

          4.0

          250HW-12

          167

          600

          12.5

          980

          84

          24.4

          30

          4.0

          300HW-5

          220

          790

          5

          970

          83

          12.99

          22

          4.0

          300HW-8

          220

          792

          8

          970

          85

          20.32

          30

          4.0

          350HW-4S

          278

          1000

          4.3

          980

          85

          16.6

          22

          4.4

          350HW-8

          207

          745

          4.4

          730

          85.5

          10.5

          15

          4.5

          350HW-8S

          278

          1000

          8

          980

          85.5

          25.5

          30

          4.5

          400HWC-7

          319

          1150

          7

          730

          85.5

          25.64

          30

          4

          400HW-8

          400

          1440

          8

          730

          86

          36.48

          45

          4.0

          400HW-12

          400

          1440

          12.5

          730

          86

          57.00

          75

          4.0

          400HWC-20

          400

          1438

          19.3

          990

          84.7

          89.3

          110

          4

          400HWC-20A

          372

          1340

          15.1

          990

          79.5

          69.4

          75

          4

          500HW-6

          528

          1900

          6

          580

          84

          37

          55

          5.5

          500HW-11

          650

          2340

          11

          730

          87

          80.57

          90

          5.5

          500HWC-9

          630

          2265

          9.25

          730

          80.6

          70.8

          75

          5.5

          500HWC-11

          630

          2265

          10.50

          730

          80.2

          81.30

          90

          6

          700HW-7

          1013

          3650

          11

          580

          88

          124

          155

          5.5

           

           

          四、水泵的安裝

          Installation of Pump

          (一)安裝原則

             1、安裝高度︰視雨季或旱季不同情況具體考慮,要求吸上真空高度不超過泵的吸程。

             2、安裝位置的選擇:盡可能靠近水源,做到既保證安全、又縮短進水管路,減少揚程損失。

             3、安裝基。閡 笸林始 道喂。

             4、水泵安裝時,必須保證泵軸的水平位置。

             5、進水管末端應浸入水平面以下一米左右,但須離開泥底半米左右。

             6、水泵安裝好後,計算允許吸上高度和揚程,在水位穩定的條件下,要求為規定數量值的0.8~1.2範圍,否則水泵不會正常運行

          I. Installation Principle

            1. Installation Height: Considering the height according to the rainy season or dry season.The suction vacuum

          height can not be higher than the adsorbing height.

            2. Installation Location:The location is better to close to the water source as possible as can.It should be not

          only keeping the safety but also shortening the water inlet pipe and reduce the headloss.

            3. Installation Base:The soil texture should be firm and solid.

            4. During installation, keep the pump axile in horizontal position.

            5.The end of water inlet pipe should be immersed under water in about one meter and far away from the end of mud in about half meter.

            6.After installing the pump,calculate the suitable suction height and head.Under the stable water level condition, the suction height and head should be 0.8-1.2 times of the stated value, otherwise, the pump will not work smoothly.

          (二)注意事項︰

             1、用皮帶傳動時,兩皮帶輪必須對正且平等,否則易掉帶或出事故,傳動皮帶輪應有防護裝置,以保證安全。

           2、進出水路的各連接法蘭盤間,應有膠墊,以防進氣,漏水。

           3、出水管末端最好能浸沉池內或盡量靠近水面,以避免揚程損失。

           4、如不用底閥,進水管口淹沒水中時,應用鐵絲網罩或竹制網罩以防水草等雜物進入葉輪,影響水泵正常運轉。

          II. Attentions:

          1. When using belt drive, the two pulleys should be aligned and equal, otherwise, the belt is easy to run out or

          accident happens.The drive belts should be equipped with protective device for keeping safety.

          2. There should be rubber mats between the connecting flange plates of water in and out pipes for preventing from

          air suction and  water-leaking.

          3.It is better to make the end of water outlet pipe immerse in the pool or near the water surface as soon as possible

          for stopping headloss.

          4.If there is no bottom valve using, pls use wire netting or bamboo mesh enclosure to avoid the waterweeds and

          other sundries into the impeller to influence the normal works of pump.

           

           

          五、使用保養

          Maintenance

          (一)試車︰

            水泵在安裝完畢後,必須試車,其目的︰

          1、 使各種配合部分運轉協調。

          2、 檢查和消除安裝中的毛病。

          3、 檢查水泵的轉向是否符合要求

           I. Test Run

          Do test run after installation for the following purposes:

          1.Make all parts cooperate well.

          2.Check and remove the problems during the installation.

          3.Check the diversion of pump if it is up to the mustard.

          (二)開車前準備︰

               1、檢查地腳螺栓的堅固情況。

               2、檢查傳動皮帶松緊程度及安裝設備是否安裝妥善。

               3、檢查進、出水管是否進氣、漏水。

               4、檢查填料松緊是否適宜。

               5、檢查電動機和水泵軸心線是否在同一直線上,直聯時,電動機旋轉方向是否符合泵的旋轉方向。

               6、檢查泵內有無障礙,軸是否卡。/span>用手轉動應輕無雜音。

          II. Preparation Before Starting

               1. Check the foundation bolts if they are firm.

               2. Check the degree of tightness of drive belt and check the installation if it is suitable.

               3.Check the waterin and outpipes if they are leaking water and air.

               4.Check the degeree of tightness of padding if it is suitable.

               5.Check the motor and pump axile lead if they are in the same line and check the direction of rotation of motor if it is the same with the rotation direction of pump.

               6.Check the pump if there are barriers , if the axile locks, there should be no noises when turing it by hand.

          (三)開車順序︰

               1、關閉出口閘閥

               2、將水注入水泵,以排除進水管及泵內空氣,可從泵體頂端引水杯注入清水,也可用真空泵注水(開動真空泵,排除水泵及管內氣體在水充滿水泵的同時,起動水泵,打開閘閥,停止真空泵)。

               3、開啟電動機(注意水泵的旋轉方向)。

               4、當電動機正常運轉後,逐步開大閘閥,達到所要求的工況後,調節填料松緊。若水泵運轉,軸承溫度等都正常,則可繼續運行。

          III.  Starting Sequence

              1.Close the oulet sluice valve.

              2. Inject water into pump to remove the air in water-in pipe and pump which can realized by injecting clear water from the water diversion cup of the pump body end or by vacuum pump(start the vacuum pump, remove the air from pump and pipes, start the water pump when the pump is full of water, open the sluice valve, stop the vacuum pump).

              3. Start the motor(pay more attention on the rotation direction of pump)

              4. When the motor runs normally, turn up the sluice valve gradually, adjust the tightness of padding when gettng to the required working condition.If the pump runs well, the temperature of bearing is normal, and it can run sequentially.

          (四)使用與保養︰Use And Maintenance

               1、經常檢查軸承溫度,軸承箱內應裝70%鈣基黃油,不得過多或過少,軸承升溫一般不得比周圍超過35°C,軸承的極限溫度不得超過75°C(用手摸感到燙手),若超過應停車檢查原因予以消除。

          Check the bearing temperature regularly.The bearing box should be put 70% butter,it can not be too much or too little.The temperature rising of bearing can not be more than 35°C higher than around temperature and the limiting temperature of bearing is 75°C,if the temperature is higher than 75°C, stop to check the reason and adjust it.

               2、注意功率是否突然增大或降低,流量揚程是否突然減少,如有應停車檢查。

          Pay more attention to know if the power suddenly increases or reduces, if the flow and head are suddenly lessen, if it is, pls stop to check.

               3、經常注意檢查各部分螺絲是否因振動而松動,如松動應隨時上緊。

          Check all parts screws if they are loose, tighten them after finding.

               4、注意填料的冷卻情況,填料的的調整,不可太緊,以液體能一滴一滴漏出為準,填料太緊發熱、消耗功率。填料太松、使水泵中的液體漏損過多,降低效率。

          Pay more attention to the cooling condition of padding.The padding can not be too tight, it is ok that the fluid can leak in drops.The temperature will be high if the padding is too tight which consumes power.If the padding is too loose, the fluid leaks too much, the efficiency will be lower.

               5、泵運轉時注意有無雜音及泵內是否有劇烈的磨擦和撞擊聲,如有就停車檢查。

          When the pump is running, pls pay more attetion on the noise and friction and clashing noise, if there are strong noise, pls stop the pump to check.

               6、檢查進、出水管路有無進氣漏氣現象。

          Check the water-in and out pipes if they are leaking air.

               7、如電機與水泵為直聯傳動,需檢查電機與水泵的軸心線是否在同一直線上,以防轉時振動。

          When the motor and pump are direct connected drive ,check the motor and pump axile lead if they are in the same line to avoid vibrating.

               8、水泵在冬季使用時,停車後應將水泵內和管道內的存水放盡以防凍裂。

          If use the pump in winter, pls run off the water from the pump and pipes.

               9、水泵每使用一個灌溉季節後,應更換潤滑黃油後存放。

          Replace the lubricating oil after using the pump for one irrigation season.

              10、水泵工作滿500小時,應仔細拆卸檢查零件的磨損情況,如長期停用,應將運轉部分拆下擦干上油妥善保管。

          After the pump works for 500 hours, pls dismantle the pump to check the attrition condition of all parts carefully.If the pump leaves unused for long time, pls dismantle the driving parts, dry them and oil them for safekeeping.

          六、可能發生的故障原因及消除方法

          Failure Casues and Resolving Methods


          七、外形以及安裝尺寸



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