●高粘度液體齒輪泵在開始運轉前(qián)，往齒輪泵(bèng)的殼體内灌滿待輸送的液體，便于安全啟動。若環境溫度低(dī)于冰(bīng)點，應預先向(xiàng)泵内通(tōng)入熱蒸汽(qì)，進行預熱處理，然後才可(kě)啟動(dòng)齒輪泵。高粘(zhān)度泵的(de)旋(xuán)轉方向要與進、出油口相符。齒(chǐ)輪泵(bèng)若(ruò)是第一次運行，或長期閑置後再(zài)使用，最好在空載(zǎi)或小負荷情(qíng)況(kuàng)下先跑合一小時左(zuǒ)右。如果在跑(pǎo)合階段預先覺察出異(yì)常溫升、洩漏、振動(dòng)和(hé)噪聲時，應停機檢查。高粘度齒輪泵的支座或法蘭與其(qí)驅動(dòng)電機應采(cǎi)用共同的安裝基礎，基礎、法蘭或(huò)支座均需具有足夠(gòu)的(de)剛度，以減小齒輪泵運轉時産(chǎn)生的(de)振動和噪聲。電動機與齒輪泵須用彈性(xìng)聯軸器連接，同軸度小于(yú)0.1毫米，傾斜角不得大于1度。安裝聯軸器時不得用錘敲(qiāo)打，以免傷害齒輪泵的齒輪等零件。若用帶(dài)輪、鍊輪等驅動時應設托架支承，以防主動齒輪軸承受徑向力。緊固齒輪泵、電動(dòng)機的地腳螺釘時，螺釘受力應(yīng)均勻，連接可靠(kào)。用手轉(zhuǎn)動聯軸(zhóu)器時，應感覺到齒輪泵(bèng)能夠輕(qīng)松地轉動(dòng)，沒有(yǒu)卡緊等異常現(xiàn)象出現，然後才可以(yǐ)配管。High viscosity pump before starting work, to gear pump casing filled with liquid, facilitate safe launch.If the environment temperature is below freezing, should advance to pump into the hot steam, preheating treatment, and then to start the pump.The direction of rotation of the pump with high viscosity, oil outlet in accord.Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.If in the running-in stage in advance detect abnormal temperature rise, leakage, vibration and noise, should stop check.High viscosity gear pump bearing or flange should adopt a common drive motor installationFoundation, foundation, flange or support all needs to have enough rigidity, to reduce the vibration of gear pump is running and noise.Motor and gear pump with elastic shaft coupling, coaxial degree is less than 0.1 mm, Angle shall not be greater than 1 degree.When installing coupling hammer shall not be used, in order to avoid damage of the gear pump gearAnd other parts.If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.Ground screw fastening gear pump, motor, screw force should be uniform, reliable connection.Turn the coupling with the hand, should feel can easily turn the gear pump, no abnormal phenomenon such as clamping, then can be piping.

     高粘度液體齒(chǐ)輪泵的吸油管道内徑應足夠大，并避免(miǎn)狹窄通道(dào)或急劇拐(guǎi)彎、減少彎頭，去除不必要(yào)的閥門、附件，盡可(kě)能地降(jiàng)低(dī)泵的安裝高度，縮短吸油管道的長度，以減少壓力損失。管(guǎn)接頭等元件的密封(fēng)要良好，以(yǐ)防止空氣侵入(rù)，從而控制(zhì)氣穴與氣蝕的發生。止回閥與安全(quán)閥在齒輪泵的輸出管路上最好安裝一(yī)個止回閥。這樣(yàng)在檢修泵及輸出管道時，系統中的液體不會發生倒流。齒輪泵帶(dài)負荷停車時，亦可防(fáng)止泵倒轉而在其輸出管道内産生局部(bù)真空。應當注意，出口(kǒu)止(zhǐ)回閥不(bú)能裝反或出現卡死(sǐ)現象。高粘度泵(bèng)的出口管路上(shàng)還應當設(shè)置安全閥(fá)等保護裝置，這樣一旦泵的出口(kǒu)通道發生堵塞，就(jiù)可以打開安全閥卸(xiè)壓。安全閥可以與(yǔ)泵體或泵蓋鑄成一體(tǐ)，也可以單獨裝配。對于需要正(zhèng)反轉的高粘度齒(chǐ)輪泵，其進出口管(guǎn)路上(shàng)均需設置安全閥。High viscosity gear pump oil suction pipe diameter should be large enough, and to avoid the narrow channel, or a sharp turn, reducing elbow, remove unnecessary valves, fittings, as much as possible to reduce the installation height of pump, shorten the length of the oil suction pipe, in order to reduce the pressure loss.Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.Check valve and relief valve on the output of the gear pump tube had better install a check valve.In the overhaul pump and output pipe, the system of fluid backflow will not occur.Gear pump to stop loading machine, can be in the output pipe to prevent pump reverse, and create a partial vacuum.It should be noted that the outlet check valve cannot be installed backwards or stuck.High viscosity of the pump outlet pipe also shall set up relief valve or other protective device on the road, so that once the clogging pump export channels, can open the relief valve pressure relief.The relief valve can be cast and pump body and pump cover, also can separate assembly.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve.

   高粘度液體齒輪(lún)泵是輸送高粘度液體的齒輪泵，應做(zuò)到在較(jiào)低(dī)的功耗、較少的洩(xiè)漏、較大的壓力下輸出最多的流量。在确定所(suǒ)要輸送的介質時，應該嚴(yán)格遵循産品說明書上的規定，盡量使用廠家(jiā)推薦的流體介質，并注(zhù)意(yì)考慮系統的工作溫度範圍。當希望在某一較寬的溫度範圍内使用時，輸送介質的粘度指數應該高些。輸送介質不僅是能量傳遞(dì)的中介，而(ér)且也是潤滑、密(mì)封及(jí)傳熱介質。液體粘度(dù)過高會增加内摩擦阻力，降低輸出功率，浪費能量(liàng)，并産生過(guò)高的系統溫度.高粘度齒輪泵的出口管(guǎn)路上應當設置安全(quán)閥等(děng)保護裝置，這樣(yàng)一旦泵的出口通道發生堵塞，就可(kě)以打開安全閥卸壓。對于(yú)需要(yào)正反轉的高粘度(dù)齒輪泵(bèng)，其進出口管路上均(jun1)需設置安全閥。High viscosity pump is conveying liquid with high viscosity gear pump, should be in lower power consumption, less leakage, under the pressure of large output the most traffic.When determining to conveying medium, we should strictly follow the provisions of the product manuals on use manufacturers recommend fluid as far as possible, and pay attention to consider the system operating temperature range.When you want to use in a wide temperature range, medium viscosity index should be higher.Medium is not only the energy transfer intermediary, but also lubrication, sealing and heat transfer medium.Liquid viscosity is too high will increase internal friction resistance, lower output power, waste of energy, and generate high temperature system. High viscosity gear pump outlet pipe shall set up relief valve or other protective device on the road, so once the clogging pump export channels, can open the relief valve pressure relief.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve.

    1、工作壓力的選定1, select the work pressure

　　高(gāo)粘度液體齒輪泵額定的壓(yā)力是指泵連續工作時的最高許用壓力，而其工作壓力則決定于外(wài)部負載，安裝和調試的(de)壽命與其工作壓力直接相關。對于不頻繁工(gōng)作的齒輪泵，其工作壓力可取(qǔ)為泵的額定壓力，考慮到産品質量不同，最好将額定壓力降低20%～30%使用。對于經常工作(zuò)于較高壓力下的齒輪泵，其工作壓力應比泵的額定壓力低1～2個壓力級(jí)。石油化工設備常常是24小時連續(xù)運轉，這時泵的(de)工作壓力應該取得比額定壓力(lì)低得多，且工作(zuò)轉速也應該低于額定轉速。如果高粘度齒輪泵的工作壓力調整過高，則會(huì)使齒輪泵在超負荷下運行。High viscosity pump rated pressure refers to the maximum allowable pump continuous work pressure, and its working pressure is determined by the external load, installation and commissioning of life is directly related with work pressure.For not frequent work gear pump, the working pressure is desirable for the rated pressure of the pump, taking the quality into consideration, it is best to used pressure rated lower 20% ~ 30%.For often work under high pressure gear pump, the working pressure shall be lower than the rated pressure of the pump 1 ~ 2 pressure level.Petrochemical equipment are often 24 hours of continuous operation, and at this time of the pump working pressure should be obtained was much lower than the rated pressure, and the work speed should be lower than the rated speed.If the high viscosity gear pump high pressure adjustment, will make the pump running under overload.

　　2.安裝與試運轉2. Installation and commissioning

　　高粘度液(yè)體齒輪泵的支座(zuò)或法蘭與其驅動(dòng)電(diàn)機應采用共同的安裝基礎，基(jī)礎、法蘭或支座均需具有足夠的剛(gāng)度，以減小齒輪泵運(yùn)轉時(shí)産生的振動和噪聲。電動機與(yǔ)齒輪泵須(xū)用彈性聯軸器連接，同軸度小于0.1毫米，傾斜角不得大于1度。安裝聯軸器時不得用錘敲打，以免傷害齒輪(lún)泵的齒輪等零件。若用帶輪(lún)、鍊輪等驅動時應設托架支承，以防主動齒輪軸承受徑向力。緊固齒輪(lún)泵、電動機的地(dì)腳螺釘時，螺釘受力(lì)應均勻，連接可靠。用手轉(zhuǎn)動聯軸器時，應感覺(jiào)到齒輪泵能夠輕松地轉動，沒有卡緊等異常現(xiàn)象出現，然(rán)後才可以配管。高粘度齒輪泵的吸油(yóu)管道内徑應足夠大，并避免狹(xiá)窄通道或急劇(jù)拐彎、彎頭，去除不必要的(de)閥門、附件，盡可能地降低泵的安裝(zhuāng)高度(dù)，縮短吸油管道的長度(dù)，以減少壓力(lì)損失。管接頭等元件的密封要(yào)良好，以防(fáng)止空氣侵入，從而控制氣穴與氣蝕的發生(shēng)。在開始運(yùn)轉前，往(wǎng)齒輪泵的殼體内灌滿待輸送的液體，便于安全動。若環境溫(wēn)度低于冰點，應預先向泵内通入熱蒸汽，進行(háng)預熱處理，然後才可啟(qǐ)動齒輪泵。齒輪泵的旋轉方向要與進、出油口相符。齒輪泵若是第一次運行(háng)，或長期(qī)閑置後再使用，最好在空載或(huò)小負荷情況下先跑合一小時左右。如果(guǒ)在跑合階(jiē)段預先覺出異常溫升、洩漏、振動和噪聲時，應機檢查。高粘度泵的出口管路上還應當設置安全閥等保護裝置，這樣一旦泵的出口(kǒu)通道發生堵塞，就(jiù)可以打開安(ān)全閥(fá)卸壓。對于需要正反轉的高粘度齒輪泵，其進出口管路上均需設置安全閥。High viscosity pump bearing or flange and its drive motor should use common installation basis, foundation, flange or support all needs to have enough rigidity, to reduce the vibration of gear pump is running and noise.Motor and gear pump with elastic shaft coupling, coaxial degree is less than 0.1 mm, Angle shall not be greater than 1 degree.When installing coupling hammer shall not be used, in order to avoid damage gear and other parts of the gear pump.If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.Ground screw fastening gear pump, motor, screw force should be uniform, reliable connection.Turn the coupling with the hand, should feel can easily turn the gear pump, no abnormal phenomenon such as clamping, then can be piping.High viscosity gear pump oil suction pipe diameter should be large enough, and to avoid the narrow channel, or a sharp bend, bend, remove unnecessary valves, fittings, as much as possible to reduce the installation height of pump, shorten the length of the oil suction pipe, in order to reduce the pressure loss.Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.Before starting operation, to gear pump casing filled with liquid, easy to safety.If the environment temperature is below freezing, should advance to pump into the hot steam, preheating treatment, and then to start the pump.Direction of rotation of the gear pump, oil outlet in accord.Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.If in the running-in stage in advance the abnormal temperature rise, leakage, vibration and noise, should machine inspection.High viscosity of the pump outlet pipe also shall set up relief valve or other protective device on the road, so that once the clogging pump export channels, can open the relief valve pressure relief.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve.