高粘度齒(chi)輪泵并不(bu)能産生壓(ya)力，它隻是(shi)輸出流量(liang)。壓力低或(huo)無壓力，說(shuō)明高粘度(du)齒 輪泵沒(mei)有吸入液(ye)體或洩漏(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.

　　電動(dong)機輸出功(gōng)率偏小、齒(chi) 輪泵排量(liang)選得過大(da)或壓力調(diào)得過高時(shi)，也會造成(cheng)壓力不足(zu) 當然，壓力(li)表損壞或(huò)壓力表節(jiē)流孔堵塞(sai)時也顯示(shì)不出壓力(li)，此時可換(huàn)裝一個新(xin)的壓力表(biǎo)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.

　　如果(guo)确認泵無(wú)流量輸出(chū)，可能是由(you)于泵安裝(zhuang)有誤、泵的(de)轉向不對(duì)，或吸人側(ce)(進液口及(jí)吸液管道(dao))堵塞、出口(kou)止回閥裝(zhuāng)反或卡死(sǐ)了，也有可(ke)能是驅動(dong)軸斷裂了(le)。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.

　　高粘度泵(bèng)在轉速過(guò)低時會引(yǐn)起出液量(liàng)不足，這種(zhong)現象往往(wǎng)是由于泵(beng)的驅動裝(zhuāng)置打滑或(huò)功率不足(zú)所緻。此時(shi)應檢查齒(chi) 輪泵的實(shí)際轉速、泵(beng)與電動機(jī)的聯接及(ji)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(gāo)粘度泵在(zai)開始運轉(zhuǎn)前，往齒輪(lun)泵的殼體(tǐ)内灌滿待(dài)輸送的液(yè)體，便于安(an)全啟動。若(ruo)環境溫度(du)低于冰點(diǎn)，應預先向(xiang)泵内通入(rù)熱蒸汽，進(jìn)行預熱處(chù)理，然後才(cai)可啟動齒(chǐ)輪泵。高粘(zhān)度泵的旋(xuan)轉方向要(yao)與進、出油(you)口相符。齒(chǐ)輪泵若是(shì)第一次運(yun)行，或長期(qi)閑置後再(zai)使用，最好(hao)在空載或(huò)小負荷情(qíng)況下先跑(pao)合一小時(shi)左右。如果(guo)在跑合階(jie)段預先覺(jiao)察出異常(cháng)溫升、洩漏(lou)、振動和噪(zao)聲時，應停(ting)機檢查。高(gāo)粘度齒輪(lún)泵的支座(zuo)或法蘭與(yu)其驅動電(diàn)機應采用(yong)共同的安(an)裝基礎，基(ji)礎、法蘭或(huò)支座均需(xū)具有足夠(gou)的剛度，以(yi)減小齒輪(lún)泵運轉時(shi)産生的振(zhen)動和噪聲(sheng)。電動機與(yu)齒輪泵須(xū)用彈性聯(lian)軸器連接(jie)，同軸度小(xiǎo)于0.1毫米，傾(qing)斜角不得(dé)大于1度。安(an)裝聯軸器(qì)時不得用(yong)錘敲打，以(yi)免傷害齒(chǐ)輪泵的齒(chi)輪等零件(jiàn)。若用帶輪(lún)、鍊輪等驅(qū)動時應設(shè)托架支承(chéng)，以防主動(dòng)齒輪軸承(cheng)受徑向力(li)。緊固齒輪(lun)泵、電動機(jī)的地腳螺(luó)釘時，螺釘(dìng)受力應均(jun1)勻，連接可(ke)靠。用手轉(zhuǎn)動聯軸器(qi)時，應感覺(jiao)到齒輪泵(bèng)能夠輕松(sōng)地轉動，沒(méi)有卡緊等(deng)異常現象(xiang)出現，然後(hòu)才可以配(pèi)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(du)齒輪泵的(de)吸油管道(dào)内徑應足(zu)夠大，并避(bi)免狹窄通(tōng)道或急劇(jù)拐彎、減少(shǎo)彎頭，去除(chu)不必要的(de)閥門、附件(jian)，盡可能地(di)降低泵的(de)安裝高度(dù)，縮短吸油(you)管道的長(zhǎng)度，以減少(shao)壓力損失(shī)。管接頭等(deng)元件的密(mi)封要良好(hao)，以防止空(kong)氣侵入，從(cong)而控制氣(qì)穴與氣蝕(shi)的發生。止(zhǐ)回閥與安(ān)全閥在齒(chi)輪泵的輸(shu)出管路上(shang)最好安裝(zhuang)一個止回(hui)閥。這樣在(zài)檢修泵及(ji)輸出管道(dao)時，系統中(zhōng)的液體不(bú)會發生倒(dǎo)流。齒輪泵(beng)帶負荷停(ting)車時，亦可(kě)防止泵倒(dao)轉而在其(qí)輸出管道(dao)内産生局(ju)部真空。應(yīng)當注意，出(chu)口止回閥(fa)不能裝反(fǎn)或出現卡(kǎ)死現象。高(gāo)粘度泵的(de)出口管路(lu)上還應當(dang)設置安全(quán)閥等保護(hu)裝置，這樣(yàng)一旦泵的(de)出口通道(dao)發生堵塞(sai)，就可以打(da)開安全閥(fa)卸壓。安全(quan)閥可以與(yu)泵體或泵(beng)蓋鑄成一(yi)體，也可以(yi)單獨裝配(pei)。對于需要(yào)正反轉的(de)高粘度齒(chǐ)輪泵，其進(jìn)出口管路(lù)上均需設(she)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.

   高粘度泵(bèng)是輸送高(gāo)粘度液體(ti)的齒輪泵(beng)，應做到在(zài)較低的功(gong)耗、較少的(de)洩漏、較大(da)的壓力下(xia)輸出最多(duō)的流量。在(zai)确定所要(yao)輸送的介(jiè)質時，應該(gāi)嚴格遵循(xún)産品說明(míng)書上的規(gui)定，盡量使(shǐ)用廠家推(tui)薦的流體(ti)介質，并注(zhù)意考慮系(xì)統的工作(zuo)溫度範圍(wei)。當希望在(zai)某一較寬(kuān)的溫度範(fàn)圍内使用(yong)時，輸送介(jie)質的粘度(du)指數應該(gāi)高些。輸送(song)介質不僅(jǐn)是能量傳(chuan)遞的中介(jie)，而且也是(shi)潤滑、密封(fēng)及傳熱介(jie)質。液體粘(zhān)度過高會(huì)增加内摩(mó)擦阻力，降(jiang)低輸出功(gōng)率，浪費能(neng)量，并産生(sheng)過高的系(xì)統溫度.高(gao)粘度齒輪(lún)泵的出口(kou)管路上應(yīng)當設置安(ān)全閥等保(bǎo)護裝置，這(zhè)樣一旦泵(bèng)的出口通(tong)道發生堵(dǔ)塞，就可以(yǐ)打開安全(quan)閥卸壓。對(dui)于需要正(zhèng)反轉的高(gāo)粘度齒輪(lun)泵，其進出(chū)口管路上(shàng)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(gōng)作壓力的(de)選定1, select the work pressure

　　高粘(zhān)度泵額定(ding)的壓力是(shi)指泵連續(xu)工作時的(de)最高許用(yong)壓力，而其(qí)工作壓力(lì)則決定于(yú)外部負載(zai)，安裝和調(diào)試的壽命(mìng)與其工作(zuò)壓力直接(jiē)相關。對于(yu)不頻繁工(gōng)作的齒輪(lún)泵，其工作(zuo)壓力可取(qu)為泵的額(é)定壓力，考(kao)慮到産品(pin)質量不同(tóng)，最好将額(e)定壓力降(jiang)低20%～30%使用。對(duì)于經常工(gong)作于較高(gao)壓力下的(de)齒輪泵，其(qi)工作壓力(lì)應比泵的(de)額定壓力(li)低1～2個壓力(lì)級。石油化(huà)工設備常(chang)常是24小時(shi)連續運轉(zhuan)，這時泵的(de)工作壓力(li)應該取得(dé)比額定壓(ya)力低得多(duō)，且工作轉(zhuǎn)速也應該(gāi)低于額定(dìng)轉速。如果(guo)高粘度齒(chǐ)輪泵的工(gong)作壓力調(diao)整過高，則(ze)會使齒輪(lún)泵在超負(fù)荷下運行(hang)。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(shi)運轉2. Installation and commissioning

　　高粘(zhān)度泵的支(zhi)座或法蘭(lán)與其驅動(dong)電機應采(cai)用共同的(de)安裝基礎(chǔ)，基礎、法蘭(lan)或支座均(jun)需具有足(zu)夠的剛度(dù)，以減小齒(chi)輪泵運轉(zhuan)時産生的(de)振動和噪(zào)聲。電動機(jī)與齒輪泵(bèng)須用彈性(xìng)聯軸器連(lian)接，同軸度(dù)小于0.1毫米(mi)，傾斜角不(bú)得大于1度(dù)。安裝聯軸(zhóu)器時不得(de)用錘敲打(dǎ)，以免傷害(hài)齒輪泵的(de)齒輪等零(ling)件。若用帶(dai)輪、鍊輪等(děng)驅動時應(ying)設托架支(zhī)承，以防主(zhǔ)動齒輪軸(zhóu)承受徑向(xiang)力。緊固齒(chi)輪泵、電動(dong)機的地腳(jiao)螺釘時，螺(luó)釘受力應(yīng)均勻，連接(jie)可靠。用手(shǒu)轉動聯軸(zhou)器時，應感(gan)覺到齒輪(lún)泵能夠輕(qīng)松地轉動(dong)，沒有卡緊(jin)等異常現(xian)象出現，然(rán)後才可以(yǐ)配管。高粘(zhan)度齒輪泵(bèng)的吸油管(guǎn)道内徑應(yīng)足夠大，并(bing)避免狹窄(zhǎi)通道或急(jí)劇拐彎、彎(wan)頭，去除不(bu)必要的閥(fá)門、附件，盡(jin)可能地降(jiàng)低泵的安(ān)裝高度，縮(suo)短吸油管(guan)道的長度(dù)，以減少壓(ya)力損失。管(guan)接頭等元(yuan)件的密封(fēng)要良好，以(yǐ)防止空氣(qì)侵入，從而(er)控制氣穴(xue)與氣蝕的(de)發生。在開(kai)始運轉前(qián)，往齒輪泵(bèng)的殼體内(nèi)灌滿待輸(shu)送的液體(ti)，便于安全(quan)動。若環境(jìng)溫度低于(yu)冰點，應預(yù)先向泵内(nei)通入熱蒸(zhēng)汽，進行預(yù)熱處理，然(ran)後才可啟(qǐ)動齒輪泵(bèng)。齒輪泵的(de)旋轉方向(xiàng)要與進、出(chu)油口相符(fu)。齒輪泵若(ruo)是第一次(ci)運行，或長(zhǎng)期閑置後(hòu)再使用，最(zuì)好在空載(zǎi)或小負荷(he)情況下先(xian)跑合一小(xiǎo)時左右。如(rú)果在跑合(hé)階段預先(xian)覺出異常(chang)溫升、洩漏(lòu)、振動和噪(zao)聲時，應機(ji)檢查。高粘(zhān)度泵的出(chū)口管路上(shang)還應當設(she)置安全閥(fá)等保護裝(zhuang)置，這樣一(yī)旦泵的出(chu)口通道發(fa)生堵塞，就(jiu)可以打開(kāi)安全閥卸(xie)壓。對于需(xū)要正反轉(zhuǎn)的高粘度(du)齒輪泵，其(qi)進出口管(guan)路上均需(xu)設置安全(quán)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.