高粘度齒輪泵(bèng)并不能産生壓(yā)力，它(tā)隻是輸出(chū)流(liú)量。壓力(lì)低或(huò)無壓力，說明(míng)高(gāo)粘度齒 輪(lún)泵沒(méi)有吸(xī)入(rù)液(yè)體或洩漏(lòu)嚴(yán)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(chū)功率偏(piān)小、齒(chǐ) 輪泵(bèng)排(pái)量(liàng)選得(dé)過(guò)大(dà)或壓力調(diào)得(dé)過(guò)高時(shí)，也會造成壓力(lì)不(bú)足(zú) 當(dāng)然(rán)，壓力(lì)表損(sǔn)壞或壓(yā)力表節流(liú)孔堵塞(sāi)時也(yě)顯示不出壓力，此時(shí)可換(huàn)裝一(yī)個(gè)新的壓(yā)力表檢查。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.

　　如果确認泵無流量(liàng)輸出(chū)，可(kě)能(néng)是由(yóu)于泵(bèng)安裝有誤(wù)、泵的轉向(xiàng)不對(duì)，或吸(xī)人側(進液(yè)口及吸液管道(dào))堵塞、出口止回(huí)閥裝反或(huò)卡死了，也有可能是(shì)驅動軸斷(duàn)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(zhān)度泵在轉(zhuǎn)速過低(dī)時(shí)會引(yǐn)起出(chū)液量(liàng)不足，這種現象往往(wǎng)是由(yóu)于泵的驅(qū)動裝置打(dǎ)滑或功率不足所緻(zhì)。此時(shí)應檢(jiǎn)查齒 輪(lún)泵(bèng)的實際轉(zhuǎn)速、泵與(yǔ)電動機的聯(lián)接及功率(lǜ)匹配情(qíng)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.

    高粘度(dù)泵(bèng)在開始(shǐ)運轉前，往(wǎng)齒輪(lún)泵的殼體内灌滿待(dài)輸送的液(yè)體，便(biàn)于(yú)安全啟動。若(ruò)環境(jìng)溫度(dù)低于(yú)冰(bīng)點(diǎn)，應預(yù)先向(xiàng)泵内(nèi)通(tōng)入熱蒸汽，進行預熱處理，然(rán)後才可啟(qǐ)動齒輪泵(bèng)。高粘(zhān)度泵(bèng)的旋(xuán)轉方(fāng)向要與進、出油口相(xiàng)符。齒(chǐ)輪泵(bèng)若(ruò)是第一(yī)次運行(háng)，或(huò)長期(qī)閑置(zhì)後再使用(yòng)，最好在(zài)空(kōng)載或(huò)小負荷情況下(xià)先跑合(hé)一(yī)小時左右(yòu)。如(rú)果(guǒ)在跑(pǎo)合階段預先覺(jiào)察出異(yì)常(cháng)溫升(shēng)、洩漏、振(zhèn)動(dòng)和噪(zào)聲時，應(yīng)停機檢查。高(gāo)粘度齒輪泵的(de)支座或法(fǎ)蘭與其(qí)驅動(dòng)電機應采用共同(tóng)的安(ān)裝基(jī)礎，基(jī)礎、法蘭或支座(zuò)均需具(jù)有足夠(gòu)的剛度，以減小(xiǎo)齒輪泵運(yùn)轉時(shí)産生的(de)振動和(hé)噪聲(shēng)。電動機與齒輪泵(bèng)須用彈(dàn)性聯軸器連接(jiē)，同軸(zhóu)度小于0.1毫(háo)米，傾(qīng)斜角(jiǎo)不得(dé)大于1度。安(ān)裝聯(lián)軸(zhóu)器時不得用(yòng)錘敲(qiāo)打，以(yǐ)免傷(shāng)害齒輪泵(bèng)的齒(chǐ)輪等零件。若用(yòng)帶輪(lún)、鍊(liàn)輪等驅(qū)動時(shí)應設托架(jià)支承，以防(fáng)主動(dòng)齒輪(lún)軸(zhóu)承(chéng)受徑(jìng)向力。緊固齒輪泵、電動機的地(dì)腳螺(luó)釘時，螺釘(dìng)受力應均勻，連接可靠。用(yòng)手轉(zhuǎn)動聯軸(zhóu)器(qì)時，應感覺到齒(chǐ)輪泵(bèng)能夠輕松地轉(zhuǎn)動，沒有卡緊等(děng)異常(cháng)現象(xiàng)出現(xiàn)，然後才(cái)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(gāo)粘度齒輪泵的吸油管道(dào)内徑(jìng)應足夠大(dà)，并避免狹窄通(tōng)道或(huò)急劇拐彎(wān)、減少(shǎo)彎頭(tóu)，去除(chú)不(bú)必(bì)要(yào)的閥門(mén)、附件(jiàn)，盡可(kě)能地(dì)降低泵的安裝(zhuāng)高度，縮短吸油(yóu)管道(dào)的長度，以(yǐ)減少壓力損失(shī)。管接(jiē)頭等元件(jiàn)的密封(fēng)要(yào)良好(hǎo)，以防(fáng)止空氣侵(qīn)入，從而控(kòng)制氣(qì)穴與(yǔ)氣(qì)蝕(shí)的發(fā)生。止回閥與安(ān)全閥(fá)在齒(chǐ)輪泵(bèng)的輸出(chū)管路上最好安(ān)裝一個(gè)止回閥(fá)。這(zhè)樣在(zài)檢修泵及輸(shū)出(chū)管道(dào)時(shí)，系統中的液體(tǐ)不會發(fā)生倒(dǎo)流(liú)。齒(chǐ)輪泵(bèng)帶負(fù)荷停車時(shí)，亦可(kě)防止(zhǐ)泵倒(dǎo)轉而在(zài)其輸出(chū)管道内(nèi)産(chǎn)生局(jú)部真(zhēn)空。應當注(zhù)意，出口止回閥不能(néng)裝反或(huò)出(chū)現卡死現(xiàn)象。高(gāo)粘度泵(bèng)的出口(kǒu)管路上還(hái)應當(dāng)設置(zhì)安(ān)全閥等(děng)保護裝置，這樣一旦(dàn)泵(bèng)的(de)出口通道發生(shēng)堵塞(sāi)，就可以打開安(ān)全閥卸(xiè)壓(yā)。安全(quán)閥可以與泵體(tǐ)或泵蓋(gài)鑄(zhù)成一體，也可(kě)以單獨(dú)裝配。對(duì)于需要正(zhèng)反轉的(de)高粘(zhān)度齒(chǐ)輪泵，其(qí)進(jìn)出口管路上均(jun1)需設置(zhì)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(zhān)度泵是輸(shū)送高粘度液體(tǐ)的齒輪泵，應做到在(zài)較(jiào)低的功耗、較少(shǎo)的洩漏(lòu)、較大的壓力下(xià)輸出(chū)最多的流(liú)量。在确定所要(yào)輸送的介(jiè)質時，應該嚴(yán)格遵循(xún)産品(pǐn)說明(míng)書上(shàng)的規定，盡量使用廠(chǎng)家(jiā)推(tuī)薦的(de)流體介質，并注意考(kǎo)慮系統的(de)工作(zuò)溫度(dù)範圍(wéi)。當希(xī)望在某一(yī)較寬的(de)溫度範圍内使用時，輸(shū)送介質的(de)粘度(dù)指數應(yīng)該高些(xiē)。輸送介質不僅(jǐn)是能量(liàng)傳遞(dì)的(de)中介，而且(qiě)也是潤滑、密封(fēng)及傳(chuán)熱介質。液(yè)體粘(zhān)度過高會增加(jiā)内摩擦(cā)阻(zǔ)力，降(jiàng)低輸(shū)出功(gōng)率，浪(làng)費能量(liàng)，并(bìng)産生(shēng)過高(gāo)的系統溫度.高粘度齒輪泵的(de)出口管路(lù)上應當(dāng)設置安全閥等(děng)保(bǎo)護裝(zhuāng)置，這樣一旦泵(bèng)的出(chū)口通道發(fā)生堵(dǔ)塞，就可以(yǐ)打開安全閥卸(xiè)壓。對于(yú)需要正反轉的高粘度齒輪(lún)泵，其(qí)進出(chū)口管(guǎn)路上均需設置安全(quán)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(dìng)1, select the work pressure

　　高粘(zhān)度(dù)泵(bèng)額定(dìng)的(de)壓力(lì)是指泵(bèng)連續(xù)工作時(shí)的(de)最高(gāo)許用壓力(lì)，而其工作壓力(lì)則決(jué)定于外部(bù)負(fù)載(zǎi)，安裝(zhuāng)和調(diào)試的壽命與其(qí)工作壓力(lì)直接相關(guān)。對于不頻(pín)繁工作的(de)齒輪(lún)泵(bèng)，其工(gōng)作壓力(lì)可取為(wéi)泵的額(é)定壓(yā)力，考慮到(dào)産品質(zhì)量(liàng)不同，最好将額定壓(yā)力降(jiàng)低20%～30%使(shǐ)用。對(duì)于經(jīng)常工作于(yú)較高壓力(lì)下的(de)齒輪泵，其工作(zuò)壓力(lì)應(yīng)比(bǐ)泵的(de)額定壓力(lì)低1～2個(gè)壓力級。石油化(huà)工設備常(cháng)常是(shì)24小時(shí)連(lián)續(xù)運轉(zhuǎn)，這時(shí)泵的(de)工作(zuò)壓力應該取得(dé)比額(é)定壓力低(dī)得多(duō)，且工(gōng)作轉(zhuǎn)速也(yě)應該低于額定轉(zhuǎn)速(sù)。如果(guǒ)高粘(zhān)度齒(chǐ)輪泵(bèng)的工作(zuò)壓(yā)力調(diào)整過高，則(zé)會使(shǐ)齒輪泵(bèng)在(zài)超負(fù)荷下(xià)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(shì)運轉(zhuǎn)2. installation and commissioning

　　高粘(zhān)度泵(bèng)的支座或(huò)法蘭與(yǔ)其(qí)驅動電機(jī)應采用共同的(de)安(ān)裝基礎，基礎、法蘭(lán)或支(zhī)座均需(xū)具有足(zú)夠的(de)剛度(dù)，以減(jiǎn)小齒輪泵(bèng)運轉(zhuǎn)時産(chǎn)生的振動(dòng)和(hé)噪(zào)聲。電動機(jī)與齒(chǐ)輪泵須用彈性聯軸(zhóu)器連接，同(tóng)軸度小于0.1毫米，傾斜角不(bú)得大(dà)于1度。安裝(zhuāng)聯軸器時(shí)不得用錘敲打(dǎ)，以免(miǎn)傷害齒(chǐ)輪泵的(de)齒輪等(děng)零件。若(ruò)用帶輪、鍊輪等(děng)驅動時應(yīng)設托(tuō)架支承(chéng)，以防主(zhǔ)動齒(chǐ)輪軸承受(shòu)徑向(xiàng)力。緊固齒輪泵(bèng)、電動機的(de)地腳螺釘(dìng)時，螺釘受力(lì)應均勻(yún)，連接可靠(kào)。用手(shǒu)轉動(dòng)聯軸器時，應感覺到齒輪(lún)泵能(néng)夠(gòu)輕松地(dì)轉動，沒有卡緊等異常現象出現，然後才可以(yǐ)配管(guǎn)。高粘度齒(chǐ)輪泵的吸油管(guǎn)道内(nèi)徑應足夠(gòu)大，并避免狹窄(zhǎi)通道或急劇拐(guǎi)彎、彎頭，去(qù)除不(bú)必要的(de)閥門、附件，盡可能(néng)地降(jiàng)低泵(bèng)的安裝高(gāo)度，縮(suō)短吸(xī)油管(guǎn)道的長度，以減(jiǎn)少壓(yā)力(lì)損失。管接頭等元(yuán)件的(de)密封要良好，以防止(zhǐ)空氣(qì)侵入(rù)，從而控制氣穴(xué)與氣蝕的發(fā)生。在開始運轉前(qián)，往齒輪(lún)泵(bèng)的殼(ké)體内(nèi)灌滿待輸(shū)送的(de)液體(tǐ)，便于(yú)安全(quán)動。若環境溫度低于(yú)冰點(diǎn)，應預先(xiān)向泵内(nèi)通入熱蒸汽，進(jìn)行預熱處理，然(rán)後才可啟動齒(chǐ)輪泵(bèng)。齒輪(lún)泵的旋轉方向要與(yǔ)進、出油口相符。齒輪(lún)泵若是第(dì)一次運行(háng)，或(huò)長期閑置後再使(shǐ)用，最(zuì)好(hǎo)在(zài)空載(zǎi)或小(xiǎo)負荷情況(kuàng)下先跑合一小(xiǎo)時左右。如果在(zài)跑合階(jiē)段預先(xiān)覺出(chū)異(yì)常溫升(shēng)、洩漏、振動(dòng)和噪聲時，應機(jī)檢查(chá)。高粘度泵的出(chū)口管(guǎn)路(lù)上還應(yīng)當設(shè)置安全閥(fá)等保(bǎo)護裝置，這(zhè)樣一旦泵的出(chū)口通道發生堵(dǔ)塞，就(jiù)可以打開(kāi)安全(quán)閥(fá)卸壓。對(duì)于需(xū)要(yào)正(zhèng)反轉(zhuǎn)的高粘度齒輪(lún)泵，其進出口管(guǎn)路上均需(xū)設置(zhì)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.