液壓隔膜計量泵 進口液壓隔膜計量泵 德國進口液壓隔膜計量泵Hydraulic diaphragm metering pump

液壓隔膜計量泵概述

液壓隔膜計量泵也叫柱塞隔膜計量泵的一種，是德國巴赫增強型結構設計，該計量泵與被計量介質介質接觸部分為隔膜，而驅動部分為液壓柱塞。由于隔膜根據被計量介質的不同可選用不同的材質，CSM、FPM、PTFE等，而液壓驅動可實現高壓計量的需要，所以柱塞隔膜計量泵的使用領域和工礦壓力大大提高。
德國巴赫公司的柱塞隔膜計量泵便是這一種類型的計量泵的杰出代表。該計量泵集中了隔膜式計量泵和活塞式計量泵的所有特點，既滿足了用戶對出口壓力的要求（zui高可達100bar），又解決了腐蝕性介質的計量要求。
該計量泵的流量不隨壓力變化，在工作狀態(tài)和非工作狀態(tài)下均可進行0－*的線性調節(jié)。
一泵雙頭設計，使一臺泵同時用不同的計量量計量不同介質的應用成為現實，既節(jié)省了空間，又降低了成本。
鏡面反照式設計，使活塞法蘭及計量頭在驅動齒輪左右兩側均可自由安裝，現場安裝靈活。
模塊式設計使現場安裝及維護變得非常便捷。

柱塞隔膜計量泵工作原理
柱塞隔膜計量泵是由驅動齒輪2帶動中空柱塞10往復運動，并通過中空柱塞10中的液壓油驅動計量膜片6。中空柱塞10上有一個特殊設計的調節(jié)空，使柱塞內外的液壓油相同。柱塞10外面套有一可調節(jié)的用來關閉調節(jié)空的滑環(huán)11。當調節(jié)孔關閉時，柱塞推動里面的液壓油來驅動計量膜片6。在每個行程中，被柱塞推動來驅動計量隔膜的液壓油的量，正好等于被計量的介質的量。
計量泵流量的調節(jié)，可通過柱塞法蘭上的手動旋鈕12實現，也可通過變頻器、伺服電機等實現。該計量泵的流量不隨壓力變化的而變化，在靜態(tài)和工作狀態(tài)下均可進行0－*的線性調節(jié)。調節(jié)精度高。其中空柱塞不是固定在電機偏心輪上，在吸入行程中，柱塞被彈簧9反彈回到零位置，從而有效防止了吸入介質在計量頭中形成堵塞時給泵造成的損害。
吸入閥8在介質吸入過程中被打開，使介質流入計量頭，在加壓時吸入閥則切斷。
壓力閥5在介質加壓過程中被打開，而在吸入過程中關閉以防止壓出的介質回流入計量頭。                 

柱塞隔膜計量泵特點：

1、密封無泄漏，液壓驅動隔膜，免維護
2、高精度進出口單向閥
3、內置可調壓力放氣安全閥，限位自動補油閥，確保計量精度。
4、雙隔膜/帶破裂報警功能。
5、PTFE材質隔膜、壽命≥8000小時；金屬隔膜>3000小時
6、手動/自動/數字變頻調節(jié)流量。
7、泵在運行和停止狀態(tài)均可調節(jié)流量，精度±1％
8、zui大吸程4.5m水柱
9、介質溫度：PTFE隔膜≤120℃，金屬隔膜≤200℃
10、多種泵頭材質可選：PVC、PTFE、PVDF、304、316L及20#合金、哈B、哈C等。
11、可單臺工作，也可多臺并聯。
12、zui大適用介質粘度<2000CP

柱塞隔膜計量泵技術參數

流量：2.5L/H～300L/H
zui高排出壓力30bar
功率：0.55-0.75KW
zui大液體溫度40℃，特種材料介質溫度可達120℃
zui大吸入壓力2bar
頻率：50HZ/60HZ
zui大吸程2m水柱

Hydraulic diaphragm metering pump inlet hydraulic diaphragm metering pump Germany imports hydraulic diaphragm metering pump Hydraulic diaphragm metering pump
Hydraulic diaphragm metering pump
Hydraulic diaphragm metering pump is also known as a kind of plunger diaphragm metering pump, is the German Bach enhanced structural design, the metering pump is measured medium medium contact part of the diaphragm, and the driving part of the hydraulic piston. Because of the different media according to the measurement of the diaphragm can be made of different material, CSM, FPM, PTFE, and hydraulic drive can realize the need of high voltage measurement, so the use of the field of plunger diaphragm metering pump and mining pressure greatly improved.
Germany Bach company's plunger diaphragm metering pump is an outstanding representative of this type of metering pump. The metering pump has the characteristics of the diaphragm metering pump and the piston type metering pump, which not only meets the requirements of the user to the outlet pressure (up to 100bar), but also solves the measurement requirement of the corrosive medium.
The metering pump flow does not change with pressure, can be used in working and non working state 0* linear regulation.
Double pump design, so that a pump at the same time with a different amount of measurement of different media applications become a reality, not only saves space, but also reduces costs.
Mirror surface design, so that the piston flange and metering head in the drive gear on both sides of the right and left to install, flexible installation site.
Modular design makes installation and maintenance very convenient.
Working principle of plunger diaphragm metering pump
The plunger diaphragm metering pump is driven by a driving gear 2 to drive the hollow plunger piston reciprocating motion, and the diaphragm is driven by the hydraulic oil in the hollow plunger piston 6 to drive the diaphragm to be measured by the hydraulic pressure of the motor. The piston is driven by the hydraulic pressure of the hollow plunger piston, and the metering diaphragm is driven by the hydraulic pressure of the hollow plunger piston 10. Hollow plunger 10 has a special design of the adjustment of the air, so that the same hydraulic fluid inside and outside the plunger. The outer sleeve of the plunger 10 is provided with an adjustable slip ring which is used for closing the adjusting air 11. When the regulating hole is closed, the piston pushes the hydraulic oil inside to drive the metering diaphragm 6. In each stroke, the amount of hydraulic fluid driven by the plunger to drive the metering diaphragm is exactly equal to the amount of the medium being measured.
Metering pump flow adjustment can be achieved through the plunger flange on the manual knob 12, can also be achieved through the inverter, servo motor, etc.. The metering pump with pressure change and change, can be carried out in the static state and 0* linear regulation. High adjustment accuracy. The air piston is not fixed on the eccentric wheel of the motor, and in the suction stroke, the plunger is bounced back to the zero position by the spring 9, so as to effectively prevent the damage to the pump caused by the blockage of the suction medium in the metering head.
The suction valve 8 is opened in the medium suction process so that the medium flows into the metering head.
The pressure valve 5 is opened during the medium pressure, and is closed in the suction process to prevent the pressure of the medium from flowing back into the metering head.
Plunger diaphragm metering pump features:
1, sealing without leakage, hydraulic driven diaphragm, maintenance free
2, high-precision import and export one-way valve
3, built-in adjustable pressure relief valve, limit automatic oil filling valve to ensure measurement accuracy.
4, double diaphragm / with broken alarm function.
5, PTFE material, diaphragm life longer than 8000 hours >3000 hours; metal diaphragm
6, manual / automatic / digital frequency control flow.
7, the pump in the running and stop state can adjust the flow, accuracy + 1%
8, the maximum suction range 4.5m water column
9, medium temperature: PTFE diaphragm is less than or equal to 120 DEG C, the metal diaphragm is less than or equal to 200 DEG C
10, a variety of pump head material optional: PVC, PTFE, PVDF, 304, 316L and 20# alloy, ha B, ha C.
11, can be a single work, but also multiple parallel.
12, the maximum applicable medium viscosity <2000CP
Technical parameters of plunger diaphragm metering pump
Flow: 2.5L/H ~ 300L/H
Maximum discharge pressure 30bar
Power: 0.55-0.75KW
The maximum liquid temperature is 40 DEG C, and the temperature of the special material can reach up to 120
Maximum suction pressure 2bar
Frequency: 50HZ/60HZ
Maximum suction range 2m water column

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