商品描述
Water ring pumps were initially utilised as self-priming pumps. It is composed of impeller, pump entire body, suction and exhaust disk, drinking water ring formed in the pump entire body wall, suction port, exhaust port, auxiliary exhaust valve and so on.
Drinking water ring pump method
Drinking water ring pump method (4 sheets)
In numerous procedures of industrial manufacturing, this sort of as vacuum filtration, vacuum h2o diversion, vacuum feeding, vacuum evaporation, vacuum focus, vacuum regathering and vacuum degassing, drinking water ring pump has been broadly utilised. Because of the fast development of vacuum application technological innovation, h2o ring pump has been paid far more attention to the crude vacuum acquisition. Because the gasoline compression in the h2o ring pump is isothermal, it can remove flammable and explosive gases, in addition to the elimination of dust, water containing gasoline, therefore, the application of h2o ring pump is escalating.
The pump entire body is geared up with an acceptable amount of h2o as the operating liquid. When the impeller rotates clockwise, the water is thrown around by the impeller. Due to the centrifugal drive, the water forms a shut ring of around equivalent thickness, which is decided by the condition of the pump cavity. The lower interior surface area of the drinking water ring is just tangent to the impeller hub, and the higher interior area of the water ring is just in contact with the leading of the blade (in simple fact, the blade has a certain insertion depth in the h2o ring). At this point, a crescent-shaped place is fashioned between the impeller hub and the drinking water ring, and this space is divided into several small cavities equal to the variety of blades by the impeller. If the lower portion of the impeller 0° as the starting point, then the impeller in the rotation of 180° ahead of the quantity of the tiny cavity from little to massive, and connected with the suction port on the finish experience, at this time the gas is inhaled, when the conclude of the suction tiny cavity is isolated from the suction port When the impeller continues to rotate, the small cavity from big to tiny, so that the fuel is compressed When the small cavity is related with the exhaust port, the fuel will be discharged from the pump.
To sum up, the drinking water ring pump relies on the modify of the pump chamber volume to accomplish suction, compression and exhaust, so it belongs to the variable-volume vacuum pump.
The impeller is installed in the pump physique eccentrically. When the impeller rotates, the h2o moving into the pump body is thrown all around by the impeller. Owing to the centrifugal pressure, the drinking water forms a closed drinking water ring of equivalent thickness comparable to the shape of the pump cavity. The upper interior surface of the water ring is just tangent to the wheel hub of the impeller, and the lower interior surface area of the water ring is just in contact with the prime of the blade. At this stage, a crescent-shaped room is formed amongst the impeller hub and the water ring, and this space is divided into many modest cavities equal to the amount of blades by the impeller. If the upper portion of the impeller ° as commencing point, and then in entrance of the rotating impeller, one hundred eighty °, the little cavity volume slowly changed from modest to big, the stress reduced consistently, and the mines with suction mouth of the suction or discharge tray, when the pressure within the small cavity area is less than the strain of the pump container, in accordance to the theory of balance of gasoline force, the gasoline is pumped proceeds to be attract in tiny cavity, is in the procedure of suction. When the suction is accomplished with the suction port isolation, the volume of the tiny chamber is steadily decreasing, the stress is escalating, at this time is in the compression method, when the compressed fuel reached the exhaust force in advance, from the auxiliary exhaust valve in advance. From the area, interlinked with vent modest cavity quantity additional reduce the pressure increase even more, when the gasoline force is higher than the exhaust stress, the compressed air to escape from the vent is in the procedure of the ongoing procedure of the pump, repeatedly carrying on the suction, compression, exhaust approach, so as to obtain the purpose of continuous extraction.
positive aspects
Straightforward construction, reduced producing precision demands, easy to process.
Compact framework, substantial pump revolution, normally can be immediately related with the motor, no reduction device. For that reason, with little composition size, big displacement can be received, and the flooring spot is also little.
Compressed fuel is basically isothermal, that is, the temperature of compressed gasoline adjustments extremely minor.
Since there is no metallic friction floor in the pump cavity, there is no want to lubricate the pump, and the dress in is very modest. Sealing amongst rotating elements and fastened elements can be accomplished directly by h2o sealing.
Even suction, steady and dependable function, straightforward operation, convenient routine maintenance.
Typical faults and troubleshooting methods
Initial, vacuum pump degree is not adequate
Feasible causes: Insufficient motor electricity provide prospects to inadequate velocity. Inadequate drinking water offer The gap amongst the impeller and the distribution plate is as well huge Mechanical seal damage resulting in drinking water leakage Impeller wear as well much Circulating drinking water cannot be drained.
Elimination method: examine regardless of whether the electrical power offer voltage is within the rated voltage variety of the motor Enhance drinking water supply (have to be controlled in the proper selection, normally it will direct to motor overload heating) Adjust the clearance in between impeller and distribution plate (normally .fifteen-.20mm) Replace the mechanical seal Substitute the impeller Verify the drinking water outlet piping.
Two, can not start or commence the sound
Feasible triggers: The power provide voltage of the motor is insufficient. Motor phase failure operation The pump is not used for a extended time, resulting in corrosion Pump suction particles Impeller drag distribution plate.
Troubleshooting approach: Check regardless of whether the power provide voltage is as well low Check regardless of whether the motor wiring is firm If the pump does not direct to corrosion for a extended time, you can insert a rust remover or open the pump protect to artificially get rid of rust Open the pump cover to get rid of particles Modify the length among impeller and distribution plate.
3, motor overheating
Possible leads to: too much water supply prospects to motor overload Motor stage loss The vent is blocked The impeller drags other parts.
Elimination technique: lessen the drinking water supply to the regular assortment (refer to the pump’s operating recommendations for liquid source) Verify whether or not the wiring is firm Check the exhaust port Open the pump cover to adjust the clearance between impeller and other areas.
Four, insufficient movement
Achievable causes: Pipe leakage Resistance decline will increase
Elimination method: check the mechanical seal at the joint Check pipes and check valves for faults.
Normal routine maintenance
(1) In normal function, consideration should be compensated to check out the functioning and lubrication of bearings. The temperature (bearing and outer circle) is typically 15ºC ~ 20ºC greater than the ambient temperature, and the highest temperature is not authorized to exceed 30ºC ~ 35ºC, that is, the genuine temperature at the outer circle of the bearing frame ought to not exceed 55ºC ~ 60ºC The regular working bearings must be refuelled 3 ~ 4 moments a 12 months, the bearings should be cleaned at least as soon as a year, and all the lubricating oil should be changed.
(2) In standard work, the packing must be pressed frequently. If the packing can’t guarantee the necessary sealing functionality thanks to put on, the new packing ought to be replaced. If the mechanical seal is employed and leakage is located, check out whether or not the static and static ring of the mechanical seal is broken or the auxiliary seal is aging. In these kinds of situations, new parts must be replaced.
(3) In the appearance of unique sound, can eliminate the strain plate on the 2 finishes of the include, verify no matter whether the 2 stop faces of the impeller and the distributor are broken, but also check out no matter whether the exhaust valve plate is typical.
Selection criteria
1, water ring pump vacuum specifications unit 2, drinking water ring pump pumping speed demands 3, drinking water ring pump running circumstances 4, h2o ring pump motor power 5, drinking water ring pump voltage demands 6, drinking water ring pump material specifications.
Issues needing interest
Take away the
Prior to disassembly, the drinking water in the pump cavity must be unveiled, and the fuel-drinking water separator and suction tube components need to be eliminated. In the procedure of disassembly, all the gaskets must be very carefully eliminated. If there is injury, the identical gasket must be replaced. The pump shall be taken off from the rear finish (with out coupling or pulley stop) in the subsequent get:
(1) Get rid of the rear shaft bearing cap, loosen the 2 round nuts with hook hand, take away the bearing seat and bearing
(2) Loosen the packing gland nut and get rid of the packing gland
(3) get rid of the hexagonal bolt connecting the pump go over and the pump body and the bolt at the base foot of the pump protect, take away the again end cover
(4) eliminate the pump entire body
(5) Loosen the foot bolt at the other stop
(6) take away the coupling and get rid of the important on the shaft
(7) Get rid of the bearing elements just before
(8) Get rid of the front finish protect and take away the shaft and impeller with each other.
After disassembly, the elements must be coated with oil on the mating surface, thread must also be coated with oil to safeguard.
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/ 放 | |
1套 （最低订购量） |
###
| 售后服务： | 一年 |
|---|---|
| 保修单： | 一年 |
| 石油还是其他： | 无油 |
| 结构： | 旋转真空泵 |
| 排气法： | 容积式泵 |
| 真空度： | 低真空 |
|
/ 放 | |
1套 （最低订购量） |
###
| 售后服务： | 一年 |
|---|---|
| 保修单： | 一年 |
| 石油还是其他： | 无油 |
| 结构： | 旋转真空泵 |
| 排气法： | 容积式泵 |
| 真空度： | 低真空 |
真空泵基础知识
真空泵是一种从密封空间抽取气体分子并维持部分真空的装置。它的主要功能是在给定体积内产生相对真空。真空泵种类繁多。本文将介绍它们的工作原理、类型和应用。 
工作原理
真空泵是一种机械装置，它通过将系统内的压力提升至高于周围大气压的压力来抽取气体。真空泵的工作原理基于气体传输和捕集的原理。真空泵可根据其真空度和每立方厘米空间内可抽取的分子数量进行分类。在中高真空条件下，气体分子相互碰撞时会发生粘性流动。提高真空度则会导致分子流或过渡流。
真空泵由多个部件组成，使其成为一种用途广泛的工具。其中一个主要部件是电机，它由转子和定子组成。转子和定子内部装有线圈，通电后会产生磁场。这两个部件都必须安装在能够支撑泵重量的底座上。此外，还有一个油路，用于循环润滑油，以达到润滑和冷却的目的。
另一种真空泵是液环真空泵。它的工作原理是将叶轮置于叶片上方或下方。液环泵还可以调节叶轮的转速。但是，如果您计划使用这种类型的泵，建议咨询专家。
真空泵的工作原理是将气体分子移动到压力较高或较低的区域。随着压力降低，分子的移除变得更加困难。工业真空系统需要能够在 1 至 10⁻⁶ Torr 范围内工作的真空泵。
类型
真空泵种类繁多，应用广泛，例如在实验室中。这些泵的主要目的是从真空腔中抽取空气或气体分子。不同类型的泵采用不同的技术来实现这一目标。有些泵采用容积式抽气，而另一些则采用液环、分子转移和捕集等技术。
这些泵用于多种工业生产过程，包括真空管、阴极射线管、电灯和半导体加工。它们也用于汽车液压系统和飞机，为这些设备提供动力。陀螺仪通常由这些泵控制。在某些情况下，它们也用于医疗领域。
真空泵的工作原理取决于被抽吸气体的类型。主要有三种类型：容积式、负容积式和动量传递式。根据润滑方式的不同，这些原理还可以进一步细分为不同类型的泵。例如，干式真空泵对气体和蒸汽的敏感性较低。
另一种真空泵称为旋片泵。这种泵主要由转子和真空室两个部分组成。其工作原理是利用旋转运动部件挤压泵壳。旋片泵的配合面间隙设计得非常小，以防止流体泄漏到低压侧。它们适用于需要低脉动和高连续流量的真空应用。但是，它们不适用于研磨介质。
真空泵种类繁多，选择合适的真空泵至关重要。泵的类型取决于系统的需求和用途。大型真空泵可以连续工作，而小型真空泵更适合间歇使用。 
申请
真空泵广泛应用于各种工业和科研过程中。例如，它们用于真空管、阴极射线管和电灯的生产。它们也用于半导体加工。真空泵还可用作其他设备的机械支撑。例如，汽车发动机上可能装有多个真空泵，为飞机的液压系统提供动力。此外，它们也常用于聚变研究。
实验室中最常用的真空泵是旋片泵。它的工作原理是引导气流流经圆形壳体内的一系列旋转叶片。当叶片穿过壳体时，它们会将腔体内的气体抽出，从而产生真空。旋片泵通常为单级或双级，可处理 10 至 6 巴的压力，并且具有很高的抽速。
真空泵也用于在晶圆上制造太阳能电池。这涉及一系列工艺，包括掺杂、扩散、干法刻蚀、等离子体增强化学气相沉积和粉末制备。这些应用取决于工艺中使用的真空泵类型，而所选真空泵应根据环境进行设计。
真空泵种类繁多，但其基本工作原理相同。根据真空类型不同，每种真空泵的功能和容量也各不相同。一般来说，真空泵可分为容积式泵、旋片泵、液环泵和分子输送泵。
维护
负责日常维护和维修的是首席研究员 (PI)。Agknxs 必须由 PI 和其他相关实验室人员遵守和批准。Agknxs 提供真空泵设备日常维护的指导原则。Agknxs 并非旨在取代对真空泵设备进行详细的日常检查，后者应由经过认证/合格的维修人员执行。如果设备发生故障，用户应联系 PI 或 RP 寻求帮助。
首先，检查真空泵是否有松动部件。确保进气和排气压力表处于打开状态。当压力显示正常时，打开闸阀。同时，检查真空泵的扬程和流量。扬程和流量应在标签所示的范围内。轴承温度应在 35°F 以内，最高温度不应超过 80°F。真空泵衬套严重磨损时应更换。
如果真空泵出现多次异常运行情况，则应进行性能测试。测试结果应与参考值进行比较，以识别异常之处。为避免泵过早失效，系统化的预测性维护方法至关重要。这在半导体行业是一个相对较新的领域，但领先的半导体公司和主要的真空泵供应商尚未制定出统一的方法。
本文提出了一种简化的抽真空试验方法来评估真空泵的性能。该方法包括模拟曝气现场试验和四项泵性能指标。性能指标在充气、空转和充气量相关的试验条件下进行评估。 
成本
真空泵的总成本主要包括两部分：初始投资和后续维护成本。后者成本最高，约为初始投资的四到五倍。因此，选择更节能的型号是降低系统总成本和缩短投资回收期的有效途径。
真空泵的初始成本约为$786。油润滑旋片泵最便宜，无油旋片泵略贵一些。非接触式真空泵的价格也略高。真空泵的成本虽然不高，但仍是一个需要仔细考虑的因素。
选择真空泵时，务必考虑被抽气体的类型。有些泵仅适用于抽空气，而另一些则专为抽氦气而设计。无油空气的抽速特性与普通空气不同。因此，您需要考虑介质的特性，以确保所选泵满足您的需求。真空泵的成本可能远高于其购置价格，因为日常运行和维护成本可能更高。
润滑式真空泵通常更耐用、价格更低，但可能需要更多维护。维护成本取决于需要抽吸的气体类型。较轻的气体需要缓慢抽吸，而较重的气体则需要快速抽吸。真空泵的维护水平还取决于其润滑频率。
隔膜真空泵需要定期维护和更换润滑油。隔膜泵内的润滑油应每使用3000小时更换一次。该泵还具有耐化学腐蚀性，因此可用于酸性和粘稠物料。
editor by czh 2023-03-27
