CN105927597A - Jet flow vacuum pump using submersible pump - Google Patents

Jet flow vacuum pump using submersible pump Download PDF

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Publication number
CN105927597A
CN105927597A CN201610286678.XA CN201610286678A CN105927597A CN 105927597 A CN105927597 A CN 105927597A CN 201610286678 A CN201610286678 A CN 201610286678A CN 105927597 A CN105927597 A CN 105927597A
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water outlet
water
pump
plate
submersible pump
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CN105927597B (en
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Shanghai Tingji Electronic Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/04—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing elastic fluids
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • F04F5/52—Control of evacuating pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

本发明涉及一种采用潜水泵的射流真空泵,属于径向流动非变容式流体泵技术领域。该出水压力可调射流真空泵包括潜水泵、射流器和真空罐，潜水泵包括泵体、电机和叶轮，泵体上设置有进水口和出水口，射流器的射流液体进口端连通所述潜水泵的出水口，射流器的进气口端连通真空罐出口，潜水泵的出水口处设有垂直于水流出水方向的调节板和平行于水流出水方向且设于出水口中心处的固定轴，调节板与进水口之间形成有水流过流通道，调节板包括外圈环形板和设于外圈环形板内的内圆板，内圆板固定在固定轴上，外圈环形板和内圆板之间设有扭簧。该出水压力可调射流真空泵保持了射流器的射流液体进口端处的供水压力在一定范围内恒定。

The invention relates to a jet vacuum pump using a submersible pump, which belongs to the technical field of radial flow non-variable fluid pumps. The water outlet pressure adjustable jet vacuum pump includes a submersible pump, an ejector and a vacuum tank. The submersible pump includes a pump body, a motor and an impeller. The pump body is provided with a water inlet and a water outlet. The water outlet of the ejector is connected to the outlet of the vacuum tank, and the water outlet of the submersible pump is provided with an adjustment plate perpendicular to the water outlet direction and a fixed shaft parallel to the water outlet direction and located at the center of the water outlet. A water flow channel is formed between the plate and the water inlet. The regulating plate includes an outer annular plate and an inner circular plate inside the outer annular plate. The inner circular plate is fixed on the fixed shaft, and the outer annular plate and the inner circular plate A torsion spring is provided between them. The water outlet pressure-adjustable jet vacuum pump keeps the water supply pressure at the jet liquid inlet end of the jet device constant within a certain range.

Description

一种采用潜水泵的射流真空泵A jet vacuum pump using a submersible pump

技术领域technical field

本发明涉及一种潜水泵，属于径向流动非变容式流体泵技术领域。The invention relates to a submersible pump, which belongs to the technical field of radial flow non-variable fluid pumps.

背景技术Background technique

射流真空泵是利用机械、物理、化学或物化的方法，在封闭空间中产生、改善和维持真空的装置。一般由潜水泵、射流真空泵、泵箱三部分组成，被广泛用于石油、化工、食品、制药、轻工、环保等行业的减压蒸发、结晶、蒸馏、干燥、脱色、脱臭、真空输送等工艺之中。Jet vacuum pump is a device that generates, improves and maintains vacuum in a closed space by mechanical, physical, chemical or physical and chemical methods. It is generally composed of three parts: submersible pump, jet vacuum pump and pump box. It is widely used in decompression evaporation, crystallization, distillation, drying, decolorization, deodorization, vacuum transportation, etc. in petroleum, chemical, food, pharmaceutical, light industry, environmental protection and other industries. In the process.

潜水泵通常包含泵体、电机、叶轮，泵体上设置有进水口、出水口；电机启动带动叶轮转动，带动水从进水口进入，然后从出水口排出，水流通道是通过泵体内部的中空部分形成的通道。A submersible pump usually includes a pump body, a motor, and an impeller. The pump body is provided with a water inlet and a water outlet; the motor starts to drive the impeller to rotate, and drives water to enter from the water inlet and then discharge from the water outlet. Partially formed channel.

潜水泵是输送液体或使液体增压的机械。它将原动机的机械能或 其他外部能量传送给液体，使液体能量增加，主要用来输送液体包括水、油、酸碱液、乳化液、悬乳液和液态金属等，也可输送液体、气体混合物以及含悬浮固体物 的液体。A submersible pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal, etc., and can also transport liquid and gas mixtures. and liquids containing suspended solids.

用户用水量一般是动态的，因此供水不足或供水过剩的情况时有发生。而用水和供水之间的不平衡集中反映在供水的压力上，即用水多而供水少，则压力低；用水少而供水多，则压力大。保持供水压力的在一定范围内恒定，可使供水和用水之间保持平衡，从而提高了供水的质量。Water consumption by users is generally dynamic, so water shortage or excess water supply may occur from time to time. The imbalance between water use and water supply is reflected in the pressure of water supply, that is, more water and less water supply, the pressure is low; less water and more water supply, the pressure is high. Keeping the water supply pressure constant within a certain range can keep the balance between water supply and water consumption, thus improving the quality of water supply.

发明内容Contents of the invention

本发明要解决的技术问题是，针对现有技术不足，提出一种保持射流器的射流液体进口端处供水压力的在一定范围内恒定的出水压力可调射流真空泵。The technical problem to be solved by the present invention is to propose a jet vacuum pump with an adjustable outlet pressure that keeps the water supply pressure at the jet liquid inlet end of the jet device constant within a certain range.

本发明为解决上述技术问题提出的技术方案是：一种出水压力可调射流真空泵，包括潜水泵、射流器和真空罐，所述潜水泵包括泵体、设于泵体内的电机和叶轮，所述泵体上设置有进水口和出水口，所述电机输出轴朝下伸出且与叶轮中心轴固连，所述射流器的射流液体进口端连通所述潜水泵的出水口，所述射流器的进气口端连通真空罐出口，所述潜水泵的出水口处设有垂直于水流出水方向的调节板和平行于水流出水方向且设于出水口中心处的固定轴，所述调节板与进水口之间形成有水流过流通道，所述调节板包括外圈环形板和设于外圈环形板内的内圆板，所述内圆板固定在固定轴上，所述外圈环形板和内圆板之间设有扭簧。The technical solution proposed by the present invention to solve the above technical problems is: a jet vacuum pump with adjustable outlet pressure, including a submersible pump, a jet and a vacuum tank. The submersible pump includes a pump body, a motor and an impeller arranged in the pump body. The pump body is provided with a water inlet and a water outlet, the output shaft of the motor protrudes downwards and is fixedly connected with the central axis of the impeller, the jet liquid inlet port of the jet is connected to the water outlet of the submersible pump, and the jet The air inlet end of the device is connected to the outlet of the vacuum tank, and the water outlet of the submersible pump is provided with an adjusting plate perpendicular to the water outlet direction and a fixed shaft parallel to the water outlet direction and arranged at the center of the water outlet. A water flow channel is formed between the inlet and the water inlet, the regulating plate includes an outer annular plate and an inner circular plate arranged in the outer annular plate, the inner circular plate is fixed on a fixed shaft, and the outer annular A torsion spring is arranged between the plate and the inner circular plate.

本发明采用上述技术方案的有益效果是：通过在潜水泵泵体的出水口处设有垂直于水流出水方向的调节板和平行于水流出水方向且设于出水口中心处的固定轴，当出水口处水流量不大时，水流通过水流过流通道流出，当出水口处水流量大时，水流将外圈环形板打开倾斜，加大水流流量，保持了射流器的射流液体进口端处供水压力的在一定范围内恒定。The beneficial effect of the present invention adopting the above-mentioned technical solution is: by setting the adjusting plate perpendicular to the water outlet direction of the submersible pump body at the water outlet of the submersible pump body and the fixed shaft parallel to the water outlet direction and arranged at the center of the water outlet, when the water outlet When the water flow at the water outlet is not large, the water flow flows out through the water flow channel. When the water flow at the water outlet is large, the water flow will open the outer annular plate to increase the water flow and maintain the water supply at the jet liquid inlet of the jet. The pressure is constant within a certain range.

上述技术方案的改进是：所述水流过流通道、外圈环形板和内圆板的面积之比为1:1:1。The improvement of the above technical solution is: the ratio of the areas of the water flow channel, the outer ring plate and the inner circular plate is 1:1:1.

上述技术方案的改进是：所述外圈环形板含有的成分和质量百分比含量为：C:3.5～3.7%，Sb:0.04～0.08%，Mn:0.40～0.60%，Cu: 0.30～0.40%，其余为Fe和不可避免的夹杂元素。The improvement of the above technical solution is: the composition and mass percentage content of the annular plate of the outer ring are: C: 3.5-3.7%, Sb: 0.04-0.08%, Mn: 0.40-0.60%, Cu: 0.30-0.40%, The rest is Fe and inevitable inclusion elements.

锑: Sb熔点630℃ ，它是促进珠光体形成元素, 对薄壁铸件, 可使组织完全珠光体化, 且对不同壁厚基体组织差异极微, 壁厚敏感性明显减少。具有较大熔化潜热，加入0.04～0.08%含量的 Sb，明显细化宏观组织，在部分微区形成温度起伏，引起析出石墨核心，可细化石墨。Antimony: The melting point of Sb is 630°C. It is an element that promotes the formation of pearlite. For thin-walled castings, the structure can be completely pearlitized, and there is very little difference in the matrix structure of different wall thicknesses, and the wall thickness sensitivity is significantly reduced. It has a large latent heat of fusion, adding 0.04-0.08% of Sb can significantly refine the macrostructure, and form temperature fluctuations in some micro-regions, causing the precipitation of graphite cores, which can refine graphite.

本发明采用上述技术方案的有益效果是：通过在外圈环形板内加入微量的Sb和Cu，生产成本低廉, 耐磨性能好，使得出水压力可调射流真空泵在水中工作使用寿命提高明显。The invention has the beneficial effects of adopting the above-mentioned technical solution: by adding a small amount of Sb and Cu into the annular plate of the outer ring, the production cost is low, the wear resistance is good, and the service life of the jet vacuum pump with adjustable water outlet pressure is significantly improved in water.

附图说明Description of drawings

下面结合附图对本发明作进一步说明：The present invention will be further described below in conjunction with accompanying drawing:

图1是本发明实施例出水压力可调射流真空泵的结构示意图。Fig. 1 is a schematic structural view of a jet vacuum pump with adjustable outlet water pressure according to an embodiment of the present invention.

图2是图1潜水泵的结构示意图。Fig. 2 is a schematic structural diagram of the submersible pump in Fig. 1 .

具体实施方式detailed description

实施例Example

本实施例的出水压力可调射流真空泵，如图1和图2所示，包括潜水泵10、射流器20和真空罐30。潜水泵包括泵体1、设于泵体1内的电机2和叶轮3。泵体1上设置有进水口和出水口，电机2输出轴朝下伸出且与叶轮3中心轴固连。射流器20的射流液体进口端连通潜水泵10的出水口，射流器20的进气口端连通真空罐30出口。The water outlet pressure-adjustable jet vacuum pump of this embodiment, as shown in FIG. 1 and FIG. 2 , includes a submersible pump 10 , an ejector 20 and a vacuum tank 30 . The submersible pump includes a pump body 1 , a motor 2 and an impeller 3 arranged in the pump body 1 . The pump body 1 is provided with a water inlet and a water outlet, and the output shaft of the motor 2 protrudes downward and is fixedly connected with the central axis of the impeller 3 . The jet liquid inlet end of the ejector 20 is connected to the water outlet of the submersible pump 10 , and the air inlet end of the ejector 20 is connected to the outlet of the vacuum tank 30 .

潜水泵10的出水口处设有垂直于水流出水方向的调节板4和平行于水流出水方向且设于出水口中心处的固定轴6。The water outlet of the submersible pump 10 is provided with an adjustment plate 4 perpendicular to the water outlet direction and a fixed shaft 6 parallel to the water outlet direction and arranged at the center of the water outlet.

调节板4与进水口之间形成有水流过流通道5。调节板4包括外圈环形板41和设于外圈环形板内的内圆板42。内圆板42固定在固定轴6上，外圈环形板41和内圆板42之间设有扭簧。固定轴6固定在出水口处的壳体上。A water flow channel 5 is formed between the regulating plate 4 and the water inlet. The regulating plate 4 includes an outer annular plate 41 and an inner circular plate 42 arranged in the outer annular plate. The inner circular plate 42 is fixed on the fixed shaft 6 , and a torsion spring is arranged between the outer annular plate 41 and the inner circular plate 42 . Fixed shaft 6 is fixed on the housing at the water outlet.

本实施例的水流过流通道5、外圈环形板41和内圆板42的面积之比为1:1:1。In this embodiment, the ratio of the areas of the water flow channel 5 , the outer annular plate 41 and the inner circular plate 42 is 1:1:1.

本实施例的外圈环形板41含有的成分和质量百分比含量为：C: 3.5～3.7%，Sb:0.04～0.08%，Mn:0.40～0.60%，Cu: 0.30～0.40%，其余为Fe和不可避免的夹杂元素。The components and mass percentages contained in the outer ring annular plate 41 of this embodiment are: C: 3.5-3.7%, Sb: 0.04-0.08%, Mn: 0.40-0.60%, Cu: 0.30-0.40%, and the rest are Fe and Unavoidable inclusions.

本发明不局限于上述实施例。凡采用等同替换形成的技术方案，均落在本发明要求的保护范围。The present invention is not limited to the above-described embodiments. All technical solutions formed by equivalent replacements fall within the scope of protection required by the present invention.

Claims (1)

1.一种出水压力可调射流真空泵，包括潜水泵、射流器和真空罐，所述潜水泵包括泵体、设于泵体内的电机和叶轮，所述泵体上设置有进水口和出水口，电机输出轴朝下伸出且与叶轮中心轴固连，所述射流器的射流液体进口端连通所述潜水泵的出水口，所述射流器的进气口端连通真空罐出口，其特征在于：所述潜水泵的出水口处设有垂直于水流出水方向的调节板和平行于水流出水方向且设于出水口中心处的固定轴，所述调节板与进水口之间形成有水流过流通道，所述调节板包括外圈环形板和设于外圈环形板内的内圆板，所述内圆板固定在固定轴上，所述外圈环形板和内圆板之间设有扭簧；固定轴固定在出水口处的壳体上，所述水流过流通道、外圈环形板和内圆板的面积之比为1:1:1。1. a jet vacuum pump with adjustable outlet pressure, comprising a submersible pump, a jet device and a vacuum tank, the submersible pump comprising a pump body, a motor and an impeller located in the pump body, the pump body is provided with a water inlet and a water outlet , the output shaft of the motor protrudes downward and is fixedly connected with the central shaft of the impeller, the jet liquid inlet end of the ejector communicates with the water outlet of the submersible pump, and the air inlet end of the ejector communicates with the vacuum tank outlet, its characteristics In that: the water outlet of the submersible pump is provided with an adjustment plate perpendicular to the water outlet direction and a fixed shaft parallel to the water outlet direction and arranged at the center of the water outlet, and a water flow is formed between the adjustment board and the water inlet. The regulating plate includes an annular plate of the outer ring and an inner circular plate arranged in the annular plate of the outer ring, the inner circular plate is fixed on a fixed shaft, and a Torsion spring; the fixed shaft is fixed on the housing at the water outlet, and the ratio of the areas of the water flow channel, the outer annular plate and the inner circular plate is 1:1:1.
CN201610286678.XA 2014-07-31 2014-07-31 A kind of jet vacuum pump using immersible pump Active CN105927597B (en)

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Application Number Priority Date Filing Date Title
CN201610286678.XA CN105927597B (en) 2014-07-31 2014-07-31 A kind of jet vacuum pump using immersible pump

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Application Number Priority Date Filing Date Title
CN201610286678.XA CN105927597B (en) 2014-07-31 2014-07-31 A kind of jet vacuum pump using immersible pump
CN201410371509.7A CN104265695B (en) 2014-07-31 2014-07-31 Water pressure adjustable jet vacuum pump

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CN201410371509.7A Division CN104265695B (en) 2014-07-31 2014-07-31 Water pressure adjustable jet vacuum pump

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CN105927597A true CN105927597A (en) 2016-09-07
CN105927597B CN105927597B (en) 2018-11-09

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CN201410371509.7A Active CN104265695B (en) 2014-07-31 2014-07-31 Water pressure adjustable jet vacuum pump
CN201610286676.0A Active CN105840558B (en) 2014-07-31 2014-07-31 Using the working method of the adjustable discharge pressure jet vacuum pump of immersible pump
CN201610298425.4A Active CN105864112B (en) 2014-07-31 2014-07-31 A kind of adjustable jet vacuum pump of discharge pressure using immersible pump
CN201610298119.0A Active CN105927598B (en) 2014-07-31 2014-07-31 Using the adjustable discharge pressure jet vacuum pump of immersible pump
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CN201610298425.4A Active CN105864112B (en) 2014-07-31 2014-07-31 A kind of adjustable jet vacuum pump of discharge pressure using immersible pump
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CN86207978U (en) * 1986-10-06 1987-05-27 辽宁省流体工程设计研究所 Fluid jet vacuvm pump
CN2031858U (en) * 1988-03-02 1989-02-01 无锡市第一制药厂 Water jet vaccum pump
CN2075275U (en) * 1990-10-11 1991-04-17 河北省枣强县工程工具厂 Jet vacuum pump
CN2148207Y (en) * 1993-02-13 1993-12-01 荀以鸿 Water jet vacuum air pump
CN2497083Y (en) * 2001-08-03 2002-06-26 宁晋生 Submersible jet vacuum pump
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CN105864112B (en) 2018-11-09
CN105927597B (en) 2018-11-09
CN104265695B (en) 2016-05-04
CN105840558A (en) 2016-08-10
CN104265695A (en) 2015-01-07
CN105864112A (en) 2016-08-17
CN105927598A (en) 2016-09-07
CN105927598B (en) 2018-11-09

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