●高粘度液(yè)體齒輪泵在開始運轉前(qián)，往齒輪泵的殼體内灌滿待輸送的液(yè)體，便于(yú)安全啟動。若環境溫度低(dī)于冰點，應預先向泵内通入熱蒸汽(qì)，進行(háng)預熱(rè)處理，然後才可(kě)啟動齒輪泵。高粘度泵的旋轉方向要與進、出(chū)油口相符。齒(chǐ)輪泵若是第一次運行，或長(zhǎng)期閑置後(hòu)再使用，最好在空載或小負荷情況下先跑合一小時(shí)左右。如(rú)果在跑合(hé)階段預先覺察出異常溫升(shēng)、洩漏、振動(dòng)和(hé)噪聲時，應停機(jī)檢查。高粘度齒輪泵的支座或法蘭與其驅動電機應采用共同的(de)安裝基(jī)礎，基礎、法蘭或(huò)支座均需具有足(zú)夠的剛度，以減小齒(chǐ)輪泵運轉時(shí)産生的(de)振動和噪(zào)聲。電動機與齒輪泵須用彈性聯軸器連接，同軸度小于0.1毫米，傾斜(xié)角不得大于1度。安裝聯軸器時不得用錘敲打(dǎ)，以免傷害齒輪(lún)泵的(de)齒輪等零件。若用帶輪、鍊輪等(děng)驅動(dòng)時應設托架支承，以防主動齒輪軸(zhóu)承受徑向力(lì)。緊固齒(chǐ)輪泵、電動(dòng)機的地腳螺釘時(shí)，螺釘受力應均勻，連接可靠。用手轉動聯軸(zhóu)器時，應感覺到齒輪泵能夠輕松地轉動，沒有卡緊等異常現(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.

     高粘度液體齒輪泵的吸油管(guǎn)道内徑應足夠大，并避免(miǎn)狹窄通道或急劇拐彎、減少彎頭，去除不(bú)必要的閥門、附件，盡可能地降低泵的安裝高度，縮短吸油管道的(de)長度，以減(jiǎn)少壓(yā)力損失。管接頭等元件的密封要良好，以防止空氣侵入，從而控制(zhì)氣穴與氣蝕的發生。止回閥與安全(quán)閥在(zài)齒輪泵的輸出管路上最(zuì)好安裝(zhuāng)一(yī)個止(zhǐ)回閥。這樣在檢修泵及輸出管道時，系統中的液體不會發生倒流。齒(chǐ)輪泵帶負荷停車(chē)時，亦可防(fáng)止泵倒轉而在其輸出管道内産生(shēng)局部(bù)真空。應當注意，出口止回閥不(bú)能裝反或出現卡死(sǐ)現象。高粘度泵的出口管路上還應當設置安全閥等保(bǎo)護裝置，這樣一(yī)旦泵的出口通(tōng)道發生堵塞，就可以打開安全閥卸(xiè)壓。安全閥可以與泵體或泵蓋鑄成一體，也可以單獨裝配。對于需要正反轉的高粘度齒輪泵，其進出(chū)口管(guǎn)路上均需設置安全閥(fá)。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(gāo)粘度液體(tǐ)齒輪泵是輸送高粘度液體的(de)齒輪泵，應做到在較低的功耗、較少的洩漏、較大的壓力下輸出最多的流量。在确定所要輸送的介質時，應該嚴(yán)格遵循産品說明(míng)書上的規定，盡量使用廠家推薦的流體介質，并注意考慮系統的工作溫度範圍。當希望(wàng)在某一較寬的溫度範圍内(nèi)使用時，輸送介質(zhì)的粘度(dù)指數應該高些。輸送介質不僅是能量傳(chuán)遞的中介，而且也是潤滑、密封及(jí)傳(chuán)熱介質。液體(tǐ)粘(zhān)度(dù)過高會增加内摩擦阻力，降低輸出功率，浪費(fèi)能量(liàng)，并産生過高的系統溫度.高粘度齒輪泵的出口管路上應當設置安(ān)全(quán)閥等保護裝置，這樣(yàng)一旦泵的出口通道發生堵塞，就可以打開安全閥卸壓。對于(yú)需要正(zhèng)反轉的高粘度(dù)齒輪泵，其進出口管路上均需設置(zhì)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(xuǎn)定1, select the work pressure

　　高粘度液體齒輪(lún)泵額定的壓力是指泵連續(xù)工作時的最(zuì)高許(xǔ)用壓力，而其工作壓力則決定于外(wài)部負載，安裝和調(diào)試的壽命與其工作壓力直接相關。對于不頻繁工作(zuò)的齒輪泵(bèng)，其工作壓力可取為泵的額定壓力，考慮(lǜ)到産品質量不同，最好将(jiāng)額定壓力降(jiàng)低20%～30%使用。對于經常工作(zuò)于較高壓力下(xià)的齒輪泵，其工作壓力應比泵的(de)額定壓力低(dī)1～2個壓力級。石油化工設(shè)備常常是24小時連續運轉，這(zhè)時泵的工(gōng)作壓力應該取(qǔ)得比額定壓力低得多(duō)，且工作(zuò)轉速也應該低于額定轉(zhuǎn)速。如果高(gāo)粘度齒輪泵的工作壓(yā)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

　　高粘度液體齒輪泵的支座或法蘭與其驅動電機應采用(yòng)共同(tóng)的安裝基礎(chǔ)，基礎、法(fǎ)蘭或支座均需(xū)具有(yǒu)足夠(gòu)的剛(gāng)度，以減小齒輪泵運轉時産生的振動和噪聲。電動機與齒輪泵須用彈性聯軸器連接(jiē)，同軸度小于0.1毫米，傾斜角不得大于1度。安(ān)裝聯軸器時不得用錘敲打，以免傷(shāng)害齒輪泵的齒輪(lún)等零件(jiàn)。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、電動機的地腳螺釘時，螺(luó)釘受力應均勻，連接可靠。用手轉動聯軸器時，應感覺到(dào)齒輪泵能夠輕松地轉動，沒有卡緊等異(yì)常現象出現，然後才可以配管。高粘度(dù)齒輪(lún)泵的吸油管道内徑應足夠大(dà)，并避免狹窄通(tōng)道或急劇拐(guǎi)彎、彎頭，去除不必要的閥門、附件，盡可能地降低泵的安裝高度，縮短吸油管道的長度(dù)，以減少壓力(lì)損失。管接頭等元件(jiàn)的密封要良好，以防止空氣(qì)侵入，從(cóng)而控制氣(qì)穴與氣蝕的發生。在開始運轉前，往(wǎng)齒輪泵的殼體内灌滿待輸送(sòng)的液體，便于安全動。若環境溫度低于(yú)冰點，應預先向泵内通入熱蒸汽，進行預熱處理，然後才可啟動齒輪(lún)泵。齒輪泵的旋轉方向要與進、出油口相(xiàng)符。齒(chǐ)輪泵若是第(dì)一次運行，或長期(qī)閑置後再使用，最好在空載或(huò)小負(fù)荷情況下先跑合一小時(shí)左右。如果(guǒ)在跑合階(jiē)段預先(xiān)覺出異常溫升、洩(xiè)漏、振動(dòng)和噪聲時，應機檢查。高粘度泵的出口管路上還應當設置(zhì)安(ān)全閥等保護裝置，這樣一旦泵的出口通道發生堵塞，就可以打開安全閥(fá)卸壓。對于需要正(zhèng)反轉的(de)高粘(zhān)度齒(chǐ)輪泵，其進(jìn)出口管(guǎn)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.