The basic structure of the centrifugal pump is composed of six parts are impeller, pump body, pump shaft, bearing, sealing ring, packing box. 1, the impeller is the core part of the centrifugal pump, its speed is higher than the force, the blade on the impeller plays a major role, the impeller in the assembly before the static balance experiment. The inner and outer surfaces of the impeller shall be smooth to reduce the friction loss of water flow. 2, the pump body is also called the pump shell, it is the main body of the pump. Plays a supporting and fixing role, and is connected with the bearing bracket. 3, the function of the pump shaft is to connect the coupling and the motor, the torque of the motor to the impeller, so it is the main part of the transmission of mechanical energy. 4. Plain bearing uses transparent oil as lubricant and lubricates it to the oil level line. Too much oil to seep out along the pump shaft, too little bearing and overheating and burning cause accidents! During the operation of the pump, the temperature of the bearing is 85 degrees, and the general operation is about 60 degrees.
Winter comes, the air is dry and cold, and the temperature drops to below zero. Are you worried that the water pump in use is easy to freeze or even the pump body is frozen and cracked under low temperature conditions, just like in previous years? In view of this situation, xiaobian summed up the following measures for anti-freezing water pump maintenance. 1, add insulation material for the pump to prevent the pump from freezing; (Water pumps also need to wear "clothes", exposed in the cold outdoor work, we can use cotton wool, towels, waste clothes and other clothes to wrap exposed outdoor water pumps, water pipes, faucets and other water facilities, to achieve thermal insulation effect.) 2, the pump body will not be temporarily empty, when using water, to prevent the pump freezing freezing pump: 3. The doors and Windows of the basement pump room and those without hVAC are closed. The unfinished basement pump room and wind tunnel are blocked. 4. Because all pumps of our company are delivered with hose pressure test, there is water in the pump body and management valve of the factory equipment. If the equipment is not installed, please be sure to take drainage measures to prevent freezing and cracking. 5. If the pump is frozen, do not start the pump. Use hot water or boiled water to pour into the pump to internalize the ice, or heat the pump shell.
The Shanghai Municipal Bureau of Quality and Technical Supervision announced on its website on Monday the results of a random inspection of 70 batches of water pump products in 2015. After the inspection, six batches failed to pass the inspection. According to the introduction, water pump is listed in the national industrial products production license catalogue of products. There are a total of 74 certified manufacturing enterprises in Shanghai, of which 70 have actually received products this time, and another 4 have not received samples due to production suspension and other reasons. According to gb10395.8-2006 "Agricultural and forestry tractors and machinery Technical requirements part 8: Drainage and irrigation pumps and pump units" and other national standards and related standards, the following items of submersible pump products were tested: Overload protection, grounding measures, insulation resistance and electric pump leads to cable and stator winding resistance to voltage, electric pump efficiency, rated capacity at the time of the head, electric pump input power, pump shaft power, power factor, temperature rise within the limit, motor stator cavity water (gas) pressure test, the operation instruction content, sign/sign firmly, production license; The following items of centrifugal pump have been tested: specified point efficiency, specified point flow, head, NPSH, leakage, unit operation, vibration, noise, appearance quality, mark, license mark.
市場(chǎng)分析與洞察:全球智能水泵市場(chǎng) 到2027年,全球智能水泵市場(chǎng)估值將達(dá)35.6億美元,在2020年至2027年的報(bào)告期內(nèi),增長(zhǎng)率將達(dá)6.80%。全球智能水泵市場(chǎng)報(bào)告分析了當(dāng)前推動(dòng)這個(gè)市場(chǎng)增長(zhǎng)的動(dòng)因,主要在于新興國(guó)家與地區(qū)數(shù)字化程度的不斷提高。 在2020-2027年報(bào)告期內(nèi),政府對(duì)環(huán)境能源問題實(shí)施的嚴(yán)格法規(guī)、各終端用戶對(duì)泵送系統(tǒng)日益增長(zhǎng)的需求、操作靈活性的廣受歡迎,是促進(jìn)智能水泵市場(chǎng)增長(zhǎng)的幾個(gè)因素。另一方面,采用智能水泵將進(jìn)一步增加各種機(jī)會(huì),在報(bào)告期內(nèi)推動(dòng)智能水泵市場(chǎng)的增長(zhǎng)。 高資本投資以及小型制造商不采用智能泵系統(tǒng),將成為阻礙智能水泵在報(bào)告期內(nèi)的市場(chǎng)增長(zhǎng)。 本報(bào)告詳細(xì)介紹了智能泵市場(chǎng)的新發(fā)展、貿(mào)易法規(guī)、進(jìn)出口分析、生產(chǎn)情況、價(jià)值鏈優(yōu)化、市場(chǎng)份額、國(guó)內(nèi)和本地市場(chǎng)參與者的影響,分析了新興經(jīng)濟(jì)體的機(jī)會(huì)、市場(chǎng)法規(guī)的變化,戰(zhàn)略市場(chǎng)增長(zhǎng)分析、市場(chǎng)規(guī)模、細(xì)分市場(chǎng)的增長(zhǎng)、小眾及應(yīng)用、產(chǎn)品認(rèn)證、產(chǎn)品發(fā)布、地域擴(kuò)張、市場(chǎng)上的技術(shù)創(chuàng)新。
近年來,受到國(guó)內(nèi)良好的投資環(huán)境以及基礎(chǔ)建設(shè)政策的不斷深化,我國(guó)泵閥行業(yè)將引來持續(xù)增長(zhǎng)的發(fā)展新機(jī)遇。雖然,國(guó)內(nèi)泵閥行業(yè)前景樂觀,但也存在一些不利因素。 水泵性能的技術(shù)參數(shù)有流量、吸程、揚(yáng)程、軸功率、水功率、效率等;根據(jù)不同的工作原理可分為容積水泵、葉片泵等類型。容積泵是利用其工作室容積的變化來傳遞能量;葉片泵是利用回轉(zhuǎn)葉片與水的相互作用來傳遞能量,有離心泵、軸流泵和混流泵等類型。 鋼鐵作為泵閥產(chǎn)業(yè)的原材料,在環(huán)境壓力逐漸加大的今天,其亟待轉(zhuǎn)型。鋼鐵行業(yè)將會(huì)面臨減產(chǎn)的危險(xiǎn),減產(chǎn)將導(dǎo)致短期內(nèi)鋼價(jià)上調(diào),導(dǎo)致泵閥行業(yè)的成本提高,造成泵閥行業(yè)短期的價(jià)格波動(dòng)。因此泵閥行業(yè)也會(huì)受到較大的影響。