隔膜計(jì)量泵的故障解決方法及安裝密封件時(shí)的注意事項(xiàng)
隔膜計(jì)量泵作為一種理想的化學(xué)加藥設(shè)備，已經(jīng)廣泛應(yīng)用于石化、化工、油氣田、電力、造紙、制藥、環(huán)保、水處理等領(lǐng)域。在全球范圍內(nèi)，經(jīng)過近70年的實(shí)際應(yīng)用和技術(shù)發(fā)展，市場(chǎng)需求進(jìn)入了穩(wěn)定增長(zhǎng)時(shí)期。在中國，隨著經(jīng)濟(jì)的穩(wěn)定和可持續(xù)發(fā)展，未來幾年市場(chǎng)規(guī)模將呈現(xiàn)持續(xù)快速增長(zhǎng)的趨勢(shì)。隨著經(jīng)濟(jì)水平的提高，人們的生活水平也相應(yīng)提高，人們對(duì)飲用水的純度和安全性要求越來越高。同時(shí)因?yàn)樽匀画h(huán)境越來越差，同一個(gè)家庭的付出也越來越多。特別是近年來，國家加大了對(duì)環(huán)境保護(hù)的監(jiān)管和投入。因此，環(huán)保和水處理市場(chǎng)將在未來幾年迅速增長(zhǎng)。造紙、制藥等行業(yè)約占計(jì)量泵市場(chǎng)份額的10%。未來幾年也將保持一定的增長(zhǎng)速度。
計(jì)量泵的流量不隨壓力變化，在工作和非工作條件下均可線性調(diào)節(jié)0-100%。
一泵雙頭設(shè)計(jì)，使一泵同時(shí)測(cè)量不同介質(zhì)的應(yīng)用成為現(xiàn)實(shí)，既節(jié)省空間，又降低成本。
鏡面反射設(shè)計(jì)允許活塞法蘭和計(jì)量頭自由安裝在驅(qū)動(dòng)齒輪的左右兩側(cè)，現(xiàn)場(chǎng)安裝靈活。
模塊化設(shè)計(jì)，方便現(xiàn)場(chǎng)安裝維護(hù)。
本產(chǎn)品內(nèi)置超壓安全保護(hù)閥，省去了一般計(jì)量泵安裝旁路的麻煩，節(jié)省了空間，增加了產(chǎn)品使用的安全性。
計(jì)量泵流量的調(diào)節(jié)可通過柱塞法蘭上的手動(dòng)旋鈕、變頻器、伺服電機(jī)等實(shí)現(xiàn)。隔膜計(jì)量泵的流量不隨壓力的變化而變化，在靜態(tài)和工作狀態(tài)下可線性調(diào)節(jié)0-100%。調(diào)節(jié)精度高�？罩�塞不固定在電機(jī)的偏心輪上，柱塞在吸入沖程中彈回零位，有效防止吸入介質(zhì)在計(jì)量頭內(nèi)形成堵塞時(shí)損壞泵。
在柱塞隔膜計(jì)量泵中，空心柱塞由驅(qū)動(dòng)齒輪2驅(qū)動(dòng)往復(fù)運(yùn)動(dòng)，計(jì)量隔膜由空心柱塞中的液壓油驅(qū)動(dòng)�？招闹�塞有專門設(shè)計(jì)的調(diào)節(jié)空間，使柱塞內(nèi)外的液壓油相同。柱塞覆蓋有一個(gè)可調(diào)節(jié)的滑環(huán)，用于關(guān)閉和調(diào)節(jié)空間。當(dāng)調(diào)節(jié)孔關(guān)閉時(shí)，柱塞推入液壓油以驅(qū)動(dòng)計(jì)量隔膜。在每個(gè)沖程中，由柱塞推動(dòng)以驅(qū)動(dòng)計(jì)量隔膜的液壓油的量正好等于計(jì)量介質(zhì)的量。
在計(jì)量泵上安裝密封件需要注意哪些事項(xiàng)？
使用龍亞系列隔膜計(jì)量泵時(shí)，請(qǐng)仔細(xì)閱讀說明！
1.不要損壞密封表面或密封表面的密封線。平面密封的密封性能取決于上下端面；液壓密封件的密封性能取決于與孔或軸相關(guān)的唇線。這些零件由石墨、橡膠、塑料、纖維等柔軟有彈性的特殊材料制成，容易損壞。因此，在運(yùn)輸、安裝和儲(chǔ)存過程中，更需要給予特殊的保護(hù)和照顧。一旦損壞，往往會(huì)給密封部件留下很大的隱患；2.安裝時(shí)注意平衡和對(duì)稱。將密封件放在靠近有效密封面(或唇線)的位置。系統(tǒng)投入使用后，需要做好緊固密封的進(jìn)一步觀察和善后工作，防止系統(tǒng)工作過程中因工況變化(如增壓)而出現(xiàn)微泄漏而導(dǎo)致的崩潰。3.不要強(qiáng)行安裝VAREM計(jì)量泵，施工時(shí)不要野蠻粗暴。大動(dòng)作的強(qiáng)制加載，必然會(huì)破壞密封件原有的預(yù)制結(jié)構(gòu)，就像把預(yù)制混凝土打碎填充到需要的部位，必然會(huì)導(dǎo)致災(zāi)難。這類密封件的安裝一定要非常小心謹(jǐn)慎，埋設(shè)一定要循序漸進(jìn)；
Troubleshooting of diaphragm metering pump and matters needing attention when installing seals
As an ideal chemical dosing equipment, diaphragm metering pump has been widely used in petrochemical, chemical, oil and gas fields, electric power, papermaking, pharmaceutical, environmental protection, water treatment and other fields. Worldwide, after nearly 70 years of practical application and technology development, market demand has entered a period of stable growth. In China, with the stable and sustainable development of economy, the market scale will continue to grow rapidly in the next few years. With the improvement of economic level, people's living standards are also improved accordingly, people's requirements for the purity and safety of drinking water are higher and higher. At the same time, because the natural environment is getting worse and worse, the same family is paying more and more. Especially in recent years, the state has increased the supervision and investment in environmental protection. Therefore, the environmental protection and water treatment market will grow rapidly in the next few years. Papermaking, pharmaceutical and other industries account for about 10% of the metering pump market share. It will also maintain a certain growth rate in the next few years.
The flow rate of the metering pump does not change with the pressure, and can be adjusted linearly by 0-100% under working and non working conditions.
The design of one pump with two heads makes the application of one pump to measure different media at the same time a reality, which not only saves space, but also reduces the cost.
The mirror reflection design allows the piston flange and metering head to be freely installed on the left and right sides of the drive gear, which makes the installation flexible on site.
Modular design, convenient for field installation and maintenance.
This product has built-in overpressure safety protection valve, which saves the trouble of installing bypass of general metering pump, saves space, and increases the safety of the product.
The flow of metering pump can be adjusted by manual knob, frequency converter and servo motor on the plunger flange. The flow rate of the metering pump does not change with the change of pressure, and can be linearly adjusted by 0-100% under static and working conditions. High adjustment accuracy. The empty plunger is not fixed on the eccentric wheel of the motor, and the plunger springs back to the zero position during the suction stroke, which effectively prevents the pump from being damaged when the suction medium is blocked in the metering head.
In the plunger diaphragm metering pump, the hollow plunger is driven by the drive gear 2 to move back and forth, and the metering diaphragm is driven by the hydraulic oil in the hollow plunger. The hollow plunger has a specially designed adjusting space, so that the hydraulic oil inside and outside the plunger is the same. The plunger is covered with an adjustable slip ring for closing and adjusting the space. When the adjusting hole is closed, the plunger pushes hydraulic oil to drive the metering diaphragm. In each stroke, the amount of hydraulic oil pushed by the plunger to drive the metering diaphragm is exactly equal to the amount of metering medium.
What should be paid attention to when installing seals on metering pump?
Please read the instructions carefully when using Longya series metering pump!
1. Do not damage the sealing surface or the sealing line of the sealing surface. The sealing performance of the plane seal depends on the upper and lower face; the sealing performance of the hydraulic seal depends on the lip line related to the hole or shaft. These parts are made of graphite, rubber, plastic, fiber and other soft and elastic special materials, which are easy to damage. Therefore, special protection and care are needed during transportation, installation and storage. Once damaged, it will leave a great hidden danger to the sealing parts; 2. Pay attention to the balance and symmetry during the installation. Place the seal close to the effective sealing surface (or lip line). After the system is put into use, it is necessary to do a good job of further observation and aftercare of the fastening seal to prevent the collapse of the system caused by micro leakage due to the change of working conditions (such as pressurization). 3. Do not force the installation of varem metering pump, and do not be rude during construction. The forced loading of large action will inevitably destroy the original prefabricated structure of the seal, just like breaking and filling the prefabricated concrete to the required position, which will inevitably lead to disaster. The installation of such seals must be very careful, and the embedding must be gradual;