高粘(zhan)度齒輪(lún)泵并不(bu)能産生(shēng)壓力，它(ta)隻是輸(shu)出流量(liang)。壓力低(di)或無壓(ya)力，說明(ming)高粘度(du)齒 輪泵(bèng)沒有吸(xi)入液體(tǐ)或洩漏(lòu)嚴重。High viscosity gear pump does not generate pressure, it is only the output flow.Pressure is low or no pressure, high viscosity gear wheel pump don't inhale the liquid or leakage is serious.

　　電(dian)動機輸(shū)出功率(lǜ)偏小、齒(chi) 輪泵排(pái)量選得(dé)過大或(huo)壓力調(diao)得過高(gāo)時，也會(huì)造成壓(ya)力不足(zú) 當然，壓(yā)力表損(sun)壞或壓(ya)力表節(jie)流孔堵(du)塞時也(ye)顯示不(bú)出壓力(lì)，此時可(kě)換裝一(yī)個新的(de)壓力表(biao)檢查。Small motor output power, gear wheel pump capacity to choose too large or pressure too high, can cause stress Pressure gauge damage or pressure gauge orifice jams, of course, also could not show pressure, can change a new pressure gauge to check at this time.

　　如(rú)果确認(rèn)泵無流(liú)量輸出(chū)，可能是(shì)由于泵(bèng)安裝有(you)誤、泵的(de)轉向不(bu)對，或吸(xi)人側(進(jin)液口及(ji)吸液管(guan)道)堵塞(sai)、出口止(zhi)回閥裝(zhuang)反或卡(ka)死了，也(ye)有可能(néng)是驅動(dòng)軸斷裂(liè)了。If confirmed that no flow pump output, could be turned to the pumps due to pump installation is wrong, wrong, or suction side (liquid into the mouth and suck liquid pipeline jam, export check valve installed backwards, or card is dead, it is possible that the drive shaft fracture.

　　高粘(zhān)度泵在(zai)轉速過(guò)低時會(huì)引起出(chu)液量不(bu)足，這種(zhong)現象往(wang)往是由(yóu)于泵的(de)驅動裝(zhuang)置打滑(hua)或功率(lü)不足所(suo)緻。此時(shí)應檢查(chá)齒 輪泵(beng)的實際(ji)轉速、泵(bèng)與電動(dòng)機的聯(lian)接及功(gong)率匹配(pèi)情況等(děng)。High viscosity pump in low speed can cause insufficient quantity of produced liquid, this phenomenon is often due to the slippage of the pump drive or insufficient power.Check the gear wheel pump at this time of the actual speed, pump and motor connection and power matching, etc.

    高粘度(dù)泵在開(kai)始運轉(zhuan)前，往齒(chǐ)輪泵的(de)殼體内(nei)灌滿待(dài)輸送的(de)液體，便(bian)于安全(quán)啟動。若(ruò)環境溫(wen)度低于(yu)冰點，應(yīng)預先向(xiàng)泵内通(tong)入熱蒸(zhēng)汽，進行(hang)預熱處(chu)理，然後(hou)才可啟(qǐ)動齒輪(lun)泵。高粘(zhān)度泵的(de)旋轉方(fāng)向要與(yǔ)進、出油(you)口相符(fú)。齒輪泵(beng)若是第(di)一次運(yun)行，或長(zhǎng)期閑置(zhì)後再使(shi)用，最好(hao)在空載(zai)或小負(fu)荷情況(kuang)下先跑(pao)合一小(xiao)時左右(yòu)。如果在(zai)跑合階(jie)段預先(xian)覺察出(chu)異常溫(wen)升、洩漏(lòu)、振動和(he)噪聲時(shí)，應停機(ji)檢查。高(gao)粘度齒(chi)輪泵的(de)支座或(huo)法蘭與(yǔ)其驅動(dòng)電機應(yīng)采用共(gong)同的安(an)裝基礎(chu)，基礎、法(fǎ)蘭或支(zhī)座均需(xu)具有足(zu)夠的剛(gang)度，以減(jiǎn)小齒輪(lun)泵運轉(zhuǎn)時産生(shēng)的振動(dong)和噪聲(sheng)。電動機(jī)與齒輪(lun)泵須用(yong)彈性聯(lián)軸器連(lian)接，同軸(zhóu)度小于(yú)0.1毫米，傾(qīng)斜角不(bu)得大于(yu)1度。安裝(zhuang)聯軸器(qi)時不得(dé)用錘敲(qiāo)打，以免(mian)傷害齒(chi)輪泵的(de)齒輪等(deng)零件。若(ruò)用帶輪(lún)、鍊輪等(děng)驅動時(shí)應設托(tuō)架支承(chéng)，以防主(zhǔ)動齒輪(lun)軸承受(shòu)徑向力(li)。緊固齒(chi)輪泵、電(dian)動機的(de)地腳螺(luo)釘時，螺(luó)釘受力(lì)應均勻(yún)，連接可(kě)靠。用手(shǒu)轉動聯(lian)軸器時(shi)，應感覺(jiao)到齒輪(lun)泵能夠(gòu)輕松地(di)轉動，沒(mei)有卡緊(jin)等異常(cháng)現象出(chū)現，然後(hòu)才可以(yi)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(gao)粘度齒(chi)輪泵的(de)吸油管(guǎn)道内徑(jìng)應足夠(gou)大，并避(bi)免狹窄(zhai)通道或(huò)急劇拐(guǎi)彎、減少(shao)彎頭，去(qu)除不必(bi)要的閥(fa)門、附件(jiàn)，盡可能(néng)地降低(di)泵的安(ān)裝高度(du)，縮短吸(xi)油管道(dào)的長度(dù)，以減少(shǎo)壓力損(sun)失。管接(jiē)頭等元(yuan)件的密(mì)封要良(liang)好，以防(fáng)止空氣(qì)侵入，從(cong)而控制(zhì)氣穴與(yǔ)氣蝕的(de)發生。止(zhǐ)回閥與(yu)安全閥(fa)在齒輪(lún)泵的輸(shu)出管路(lu)上最好(hao)安裝一(yī)個止回(huí)閥。這樣(yàng)在檢修(xiu)泵及輸(shu)出管道(dao)時，系統(tǒng)中的液(ye)體不會(hui)發生倒(dao)流。齒輪(lun)泵帶負(fù)荷停車(che)時，亦可(ke)防止泵(beng)倒轉而(er)在其輸(shu)出管道(dao)内産生(sheng)局部真(zhen)空。應當(dāng)注意，出(chū)口止回(hui)閥不能(neng)裝反或(huò)出現卡(kǎ)死現象(xiang)。高粘度(du)泵的出(chu)口管路(lù)上還應(ying)當設置(zhi)安全閥(fá)等保護(hu)裝置，這(zhè)樣一旦(dan)泵的出(chu)口通道(dào)發生堵(dǔ)塞，就可(ke)以打開(kai)安全閥(fa)卸壓。安(ān)全閥可(ke)以與泵(beng)體或泵(beng)蓋鑄成(cheng)一體，也(ye)可以單(dān)獨裝配(pei)。對于需(xū)要正反(fǎn)轉的高(gao)粘度齒(chǐ)輪泵，其(qí)進出口(kǒu)管路上(shang)均需設(she)置安全(quan)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(zhan)度泵是(shi)輸送高(gao)粘度液(yè)體的齒(chǐ)輪泵，應(ying)做到在(zai)較低的(de)功耗、較(jiao)少的洩(xie)漏、較大(da)的壓力(lì)下輸出(chū)最多的(de)流量。在(zài)确定所(suo)要輸送(song)的介質(zhi)時，應該(gai)嚴格遵(zun)循産品(pin)說明書(shu)上的規(gui)定，盡量(liàng)使用廠(chǎng)家推薦(jiàn)的流體(tǐ)介質，并(bing)注意考(kao)慮系統(tǒng)的工作(zuò)溫度範(fan)圍。當希(xi)望在某(mou)一較寬(kuān)的溫度(du)範圍内(nèi)使用時(shí)，輸送介(jiè)質的粘(zhān)度指數(shù)應該高(gao)些。輸送(sòng)介質不(bú)僅是能(néng)量傳遞(dì)的中介(jie)，而且也(ye)是潤滑(huá)、密封及(ji)傳熱介(jiè)質。液體(ti)粘度過(guo)高會增(zeng)加内摩(mó)擦阻力(li)，降低輸(shū)出功率(lǜ)，浪費能(néng)量，并産(chan)生過高(gāo)的系統(tǒng)溫度.高(gāo)粘度齒(chi)輪泵的(de)出口管(guǎn)路上應(ying)當設置(zhì)安全閥(fa)等保護(hù)裝置，這(zhè)樣一旦(dan)泵的出(chū)口通道(dao)發生堵(dǔ)塞，就可(ke)以打開(kai)安全閥(fá)卸壓。對(duì)于需要(yào)正反轉(zhuǎn)的高粘(zhān)度齒輪(lún)泵，其進(jin)出口管(guǎn)路上均(jun1)需設置(zhì)安全閥(fá)。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(yā)力的選(xuǎn)定1, select the work pressure

　　高粘(zhan)度泵額(é)定的壓(ya)力是指(zhǐ)泵連續(xu)工作時(shí)的最高(gāo)許用壓(ya)力，而其(qi)工作壓(yā)力則決(jué)定于外(wai)部負載(zai)，安裝和(he)調試的(de)壽命與(yǔ)其工作(zuò)壓力直(zhi)接相關(guān)。對于不(bu)頻繁工(gōng)作的齒(chi)輪泵，其(qi)工作壓(yā)力可取(qu)為泵的(de)額定壓(yā)力，考慮(lǜ)到産品(pin)質量不(bu)同，最好(hao)将額定(ding)壓力降(jiàng)低20%～30%使用(yong)。對于經(jīng)常工作(zuò)于較高(gāo)壓力下(xià)的齒輪(lun)泵，其工(gong)作壓力(li)應比泵(bèng)的額定(ding)壓力低(dī)1～2個壓力(lì)級。石油(yóu)化工設(shè)備常常(cháng)是24小時(shi)連續運(yùn)轉，這時(shi)泵的工(gong)作壓力(lì)應該取(qu)得比額(e)定壓力(li)低得多(duo)，且工作(zuò)轉速也(yě)應該低(di)于額定(dìng)轉速。如(ru)果高粘(zhan)度齒輪(lun)泵的工(gong)作壓力(li)調整過(guò)高，則會(hui)使齒輪(lún)泵在超(chāo)負荷下(xia)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(an)裝與試(shì)運轉2. Installation and commissioning

　　高(gāo)粘度泵(bèng)的支座(zuò)或法蘭(lan)與其驅(qū)動電機(ji)應采用(yòng)共同的(de)安裝基(ji)礎，基礎(chu)、法蘭或(huo)支座均(jun1)需具有(you)足夠的(de)剛度，以(yǐ)減小齒(chi)輪泵運(yùn)轉時産(chǎn)生的振(zhen)動和噪(zao)聲。電動(dong)機與齒(chi)輪泵須(xū)用彈性(xìng)聯軸器(qì)連接，同(tóng)軸度小(xiao)于0.1毫米(mǐ)，傾斜角(jiǎo)不得大(dà)于1度。安(ān)裝聯軸(zhóu)器時不(bú)得用錘(chui)敲打，以(yǐ)免傷害(hai)齒輪泵(bèng)的齒輪(lun)等零件(jiàn)。若用帶(dai)輪、鍊輪(lun)等驅動(dòng)時應設(she)托架支(zhī)承，以防(fang)主動齒(chi)輪軸承(chéng)受徑向(xiang)力。緊固(gù)齒輪泵(beng)、電動機(jī)的地腳(jiǎo)螺釘時(shi)，螺釘受(shòu)力應均(jun1)勻，連接(jie)可靠。用(yòng)手轉動(dong)聯軸器(qi)時，應感(gan)覺到齒(chǐ)輪泵能(neng)夠輕松(sōng)地轉動(dong)，沒有卡(ka)緊等異(yì)常現象(xiàng)出現，然(rán)後才可(ke)以配管(guan)。高粘度(dù)齒輪泵(bèng)的吸油(you)管道内(nèi)徑應足(zu)夠大，并(bing)避免狹(xia)窄通道(dào)或急劇(ju)拐彎、彎(wān)頭，去除(chú)不必要(yao)的閥門(men)、附件，盡(jin)可能地(dì)降低泵(bèng)的安裝(zhuāng)高度，縮(suo)短吸油(yóu)管道的(de)長度，以(yi)減少壓(ya)力損失(shi)。管接頭(tóu)等元件(jiàn)的密封(fēng)要良好(hǎo)，以防止(zhi)空氣侵(qin)入，從而(ér)控制氣(qi)穴與氣(qi)蝕的發(fa)生。在開(kāi)始運轉(zhuǎn)前，往齒(chi)輪泵的(de)殼體内(nèi)灌滿待(dai)輸送的(de)液體，便(bian)于安全(quán)動。若環(huán)境溫度(dù)低于冰(bing)點，應預(yu)先向泵(beng)内通入(ru)熱蒸汽(qì)，進行預(yù)熱處理(li)，然後才(cái)可啟動(dòng)齒輪泵(beng)。齒輪泵(beng)的旋轉(zhuǎn)方向要(yao)與進、出(chu)油口相(xiang)符。齒輪(lun)泵若是(shì)第一次(cì)運行，或(huo)長期閑(xian)置後再(zai)使用，最(zui)好在空(kong)載或小(xiao)負荷情(qíng)況下先(xiān)跑合一(yī)小時左(zuǒ)右。如果(guo)在跑合(he)階段預(yù)先覺出(chū)異常溫(wen)升、洩漏(lou)、振動和(hé)噪聲時(shi)，應機檢(jiǎn)查。高粘(zhān)度泵的(de)出口管(guǎn)路上還(hai)應當設(she)置安全(quan)閥等保(bǎo)護裝置(zhì)，這樣一(yi)旦泵的(de)出口通(tong)道發生(shēng)堵塞，就(jiu)可以打(da)開安全(quan)閥卸壓(ya)。對于需(xu)要正反(fǎn)轉的高(gāo)粘度齒(chǐ)輪泵，其(qi)進出口(kou)管路上(shàng)均需設(shè)置安全(quan)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.