高粘度(du)齒輪泵并不(bu)能産生壓力(lì)，它隻是輸出(chū)流量。壓力低(di)或無壓力，說(shuo)明高粘度齒(chi) 輪泵沒有吸(xi)入液體或洩(xie)漏嚴重。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.

　　電動(dòng)機輸出功率(lǜ)偏小、齒 輪泵(bèng)排量選得過(guo)大或壓力調(diao)得過高時，也(ye)會造成壓力(lì)不足 當然，壓(ya)力表損壞或(huo)壓力表節流(liú)孔堵塞時也(ye)顯示不出壓(ya)力，此時可換(huan)裝一個新的(de)壓力表檢查(chá)。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.

　　如果确認泵(beng)無流量輸出(chū)，可能是由于(yú)泵安裝有誤(wù)、泵的轉向不(bu)對，或吸人側(cè)(進液口及吸(xī)液管道)堵塞(sāi)、出口止回閥(fá)裝反或卡死(si)了，也有可能(néng)是驅動軸斷(duan)裂了。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.

　　高粘度(du)泵在轉速過(guò)低時會引起(qi)出液量不足(zú)，這種現象往(wǎng)往是由于泵(bèng)的驅動裝置(zhi)打滑或功率(lü)不足所緻。此(ci)時應檢查齒(chǐ) 輪泵的實際(jì)轉速、泵與電(diàn)動機的聯接(jiē)及功率匹配(pèi)情況等。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(zhān)度泵在開始(shi)運轉前，往齒(chǐ)輪泵的殼體(ti)内灌滿待輸(shu)送的液體，便(bian)于安全啟動(dòng)。若環境溫度(dù)低于冰點，應(yīng)預先向泵内(nèi)通入熱蒸汽(qi)，進行預熱處(chù)理，然後才可(ke)啟動齒輪泵(beng)。高粘度泵的(de)旋轉方向要(yào)與進、出油口(kǒu)相符。齒輪泵(bèng)若是第一次(cì)運行，或長期(qi)閑置後再使(shi)用，最好在空(kōng)載或小負荷(hé)情況下先跑(pǎo)合一小時左(zuǒ)右。如果在跑(pao)合階段預先(xian)覺察出異常(cháng)溫升、洩漏、振(zhèn)動和噪聲時(shi)，應停機檢查(cha)。高粘度齒輪(lun)泵的支座或(huo)法蘭與其驅(qū)動電機應采(cǎi)用共同的安(an)裝基礎，基礎(chǔ)、法蘭或支座(zuò)均需具有足(zú)夠的剛度，以(yǐ)減小齒輪泵(bèng)運轉時産生(shēng)的振動和噪(zào)聲。電動機與(yǔ)齒輪泵須用(yòng)彈性聯軸器(qì)連接，同軸度(du)小于0.1毫米，傾(qing)斜角不得大(da)于1度。安裝聯(lián)軸器時不得(dé)用錘敲打，以(yǐ)免傷害齒輪(lún)泵的齒輪等(deng)零件。若用帶(dai)輪、鍊輪等驅(qū)動時應設托(tuō)架支承，以防(fang)主動齒輪軸(zhou)承受徑向力(lì)。緊固齒輪泵(bèng)、電動機的地(di)腳螺釘時，螺(luó)釘受力應均(jun1)勻，連接可靠(kào)。用手轉動聯(lian)軸器時，應感(gan)覺到齒輪泵(beng)能夠輕松地(dì)轉動，沒有卡(kǎ)緊等異常現(xiàn)象出現，然後(hou)才可以配管(guǎn)。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.

     高粘度齒輪(lun)泵的吸油管(guan)道内徑應足(zú)夠大，并避免(mian)狹窄通道或(huo)急劇拐彎、減(jian)少彎頭，去除(chu)不必要的閥(fá)門、附件，盡可(ke)能地降低泵(bèng)的安裝高度(du)，縮短吸油管(guan)道的長度，以(yi)減少壓力損(sǔn)失。管接頭等(deng)元件的密封(feng)要良好，以防(fang)止空氣侵入(ru)，從而控制氣(qì)穴與氣蝕的(de)發生。止回閥(fa)與安全閥在(zài)齒輪泵的輸(shu)出管路上最(zuì)好安裝一個(ge)止回閥。這樣(yang)在檢修泵及(jí)輸出管道時(shi)，系統中的液(ye)體不會發生(shēng)倒流。齒輪泵(beng)帶負荷停車(chē)時，亦可防止(zhi)泵倒轉而在(zai)其輸出管道(dao)内産生局部(bu)真空。應當注(zhù)意，出口止回(huí)閥不能裝反(fan)或出現卡死(si)現象。高粘度(dù)泵的出口管(guan)路上還應當(dang)設置安全閥(fá)等保護裝置(zhì)，這樣一旦泵(bèng)的出口通道(dào)發生堵塞，就(jiu)可以打開安(ān)全閥卸壓。安(an)全閥可以與(yǔ)泵體或泵蓋(gai)鑄成一體，也(yě)可以單獨裝(zhuāng)配。對于需要(yao)正反轉的高(gāo)粘度齒輪泵(beng)，其進出口管(guan)路上均需設(shè)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(gāo)粘度泵是輸(shu)送高粘度液(ye)體的齒輪泵(beng)，應做到在較(jiào)低的功耗、較(jiao)少的洩漏、較(jiao)大的壓力下(xia)輸出最多的(de)流量。在确定(ding)所要輸送的(de)介質時，應該(gāi)嚴格遵循産(chǎn)品說明書上(shang)的規定，盡量(liang)使用廠家推(tui)薦的流體介(jie)質，并注意考(kao)慮系統的工(gōng)作溫度範圍(wei)。當希望在某(mou)一較寬的溫(wen)度範圍内使(shǐ)用時，輸送介(jie)質的粘度指(zhi)數應該高些(xiē)。輸送介質不(bu)僅是能量傳(chuán)遞的中介，而(er)且也是潤滑(hua)、密封及傳熱(rè)介質。液體粘(zhan)度過高會增(zēng)加内摩擦阻(zǔ)力，降低輸出(chu)功率，浪費能(néng)量，并産生過(guò)高的系統溫(wen)度.高粘度齒(chi)輪泵的出口(kou)管路上應當(dang)設置安全閥(fá)等保護裝置(zhì)，這樣一旦泵(beng)的出口通道(dào)發生堵塞，就(jiù)可以打開安(an)全閥卸壓。對(duì)于需要正反(fǎn)轉的高粘度(du)齒輪泵，其進(jin)出口管路上(shang)均需設置安(ān)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(ya)力的選定1, select the work pressure

　　高(gao)粘度泵額定(dìng)的壓力是指(zhi)泵連續工作(zuo)時的最高許(xǔ)用壓力，而其(qi)工作壓力則(zé)決定于外部(bù)負載，安裝和(he)調試的壽命(ming)與其工作壓(yā)力直接相關(guan)。對于不頻繁(fán)工作的齒輪(lún)泵，其工作壓(ya)力可取為泵(bèng)的額定壓力(li)，考慮到産品(pin)質量不同，最(zui)好将額定壓(yā)力降低20%～30%使用(yong)。對于經常工(gōng)作于較高壓(ya)力下的齒輪(lun)泵，其工作壓(ya)力應比泵的(de)額定壓力低(di)1～2個壓力級。石(shi)油化工設備(bèi)常常是24小時(shi)連續運轉，這(zhe)時泵的工作(zuo)壓力應該取(qǔ)得比額定壓(yā)力低得多，且(qiě)工作轉速也(ye)應該低于額(e)定轉速。如果(guǒ)高粘度齒輪(lún)泵的工作壓(yā)力調整過高(gao)，則會使齒輪(lún)泵在超負荷(hé)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(zhuāng)與試運轉2. Installation and commissioning

　　高(gao)粘度泵的支(zhī)座或法蘭與(yu)其驅動電機(ji)應采用共同(tong)的安裝基礎(chǔ)，基礎、法蘭或(huò)支座均需具(ju)有足夠的剛(gāng)度，以減小齒(chi)輪泵運轉時(shí)産生的振動(dong)和噪聲。電動(dong)機與齒輪泵(beng)須用彈性聯(lián)軸器連接，同(tóng)軸度小于0.1毫(háo)米，傾斜角不(bú)得大于1度。安(an)裝聯軸器時(shí)不得用錘敲(qiao)打，以免傷害(hài)齒輪泵的齒(chi)輪等零件。若(ruo)用帶輪、鍊輪(lún)等驅動時應(yīng)設托架支承(cheng)，以防主動齒(chǐ)輪軸承受徑(jìng)向力。緊固齒(chi)輪泵、電動機(jī)的地腳螺釘(ding)時，螺釘受力(li)應均勻，連接(jiē)可靠。用手轉(zhuǎn)動聯軸器時(shí)，應感覺到齒(chǐ)輪泵能夠輕(qīng)松地轉動，沒(méi)有卡緊等異(yi)常現象出現(xiàn)，然後才可以(yǐ)配管。高粘度(dù)齒輪泵的吸(xi)油管道内徑(jìng)應足夠大，并(bìng)避免狹窄通(tōng)道或急劇拐(guǎi)彎、彎頭，去除(chu)不必要的閥(fá)門、附件，盡可(ke)能地降低泵(bèng)的安裝高度(dù)，縮短吸油管(guan)道的長度，以(yi)減少壓力損(sǔn)失。管接頭等(deng)元件的密封(fēng)要良好，以防(fang)止空氣侵入(ru)，從而控制氣(qi)穴與氣蝕的(de)發生。在開始(shǐ)運轉前，往齒(chǐ)輪泵的殼體(ti)内灌滿待輸(shū)送的液體，便(biàn)于安全動。若(ruò)環境溫度低(dī)于冰點，應預(yu)先向泵内通(tōng)入熱蒸汽，進(jin)行預熱處理(lǐ)，然後才可啟(qi)動齒輪泵。齒(chǐ)輪泵的旋轉(zhuan)方向要與進(jin)、出油口相符(fu)。齒輪泵若是(shì)第一次運行(hang)，或長期閑置(zhì)後再使用，最(zuì)好在空載或(huò)小負荷情況(kuàng)下先跑合一(yī)小時左右。如(rú)果在跑合階(jie)段預先覺出(chu)異常溫升、洩(xie)漏、振動和噪(zào)聲時，應機檢(jiǎn)查。高粘度泵(bèng)的出口管路(lu)上還應當設(she)置安全閥等(děng)保護裝置，這(zhè)樣一旦泵的(de)出口通道發(fā)生堵塞，就可(kě)以打開安全(quan)閥卸壓。對于(yú)需要正反轉(zhuǎn)的高粘度齒(chi)輪泵，其進出(chu)口管路上均(jun1)需設置安全(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.