WO2007082417A1 - Pompe centrifuge pour aliments fabriquée par compression et soudage - Google Patents

Pompe centrifuge pour aliments fabriquée par compression et soudage Download PDF

Info

Publication number
WO2007082417A1
WO2007082417A1 PCT/CN2006/000548 CN2006000548W WO2007082417A1 WO 2007082417 A1 WO2007082417 A1 WO 2007082417A1 CN 2006000548 W CN2006000548 W CN 2006000548W WO 2007082417 A1 WO2007082417 A1 WO 2007082417A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
wall
pump body
inlet pipe
centrifugal pump
Prior art date
Application number
PCT/CN2006/000548
Other languages
English (en)
French (fr)
Inventor
Yuanmin Liang
Dongxian Liang
Chunyuan Huo
Original Assignee
Yangjiang City Xinli Industry Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangjiang City Xinli Industry Co., Ltd filed Critical Yangjiang City Xinli Industry Co., Ltd
Priority to US12/161,215 priority Critical patent/US8113802B2/en
Publication of WO2007082417A1 publication Critical patent/WO2007082417A1/zh

Links

Classifications

    • 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
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2233—Construction and assembly entirely open or stamped from one sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49243—Centrifugal type

Definitions

  • the invention relates to a centrifugal pump, in particular to a food centrifugal pump for processing foods formed by stamping and welding metal plates.
  • Food Centrifugal Pump is a centrifugal pump product with large demand and wide application. It is widely used in food, beverage, beer, chemical and other industrial sectors.
  • food centrifugal pumps are generally processed by a casting method.
  • the casting process is a processing technology with high power consumption, high consumables, high labor intensity, and pollution to the environment.
  • cast food pumps are also ubiquitous in terms of bulk, heavy weight, difficulty in installation, maintenance, and inefficiency. For some components of such small-flow microcentrifugal pumps similar to food pumps, such as narrow outlet width and small flow rate.
  • the impeller is also not cast due to the size of the structure. Therefore, the cast food pump is a very unsatisfactory food pump.
  • the invention patent No. CN1082627 (Application No. 99111134. 6) issued by the State Intellectual Property Office on April 10, 2002, discloses a "flush-welded centrifugal pump and a manufacturing method thereof", which is composed of an inlet flange, The outlet flange, the rear cover, the pump casing and the impeller are formed.
  • the pump casing has a pump casing and an impeller which are stamped into a direction which gradually increases in the direction of the liquid flow, and the section is substantially semicircular, close to 360.
  • a full spiral type vortex chamber and has a substantially elliptical outlet end hole, the outlet bending neck is connected with the outlet end hole of the pump casing, and the outlet neck of the pump casing is connected to the outlet end hole of the pump casing, and the longitudinal direction thereof
  • the cross section is a variable diameter elliptical shape, and a labyrinth support ring is arranged in the pump casing.
  • centrifugal pump has many advantages over the casting pump, on the one hand, due to the closed impeller structure, when the liquid is thick, it is easy to block during the flow in the impeller, and the passability is poor; on the other hand, due to the internal design of the pump body Having a bracket not only hinders the flow of liquid, but also makes the fluid passing through the pump body not clean and hygienic. Therefore, such a stamped and welded centrifugal pump cannot be used as a food pump.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide a stamping and welding molding that is not only simple in manufacturing process, convenient in processing, low in cost, but also has good passability, smooth flow, and clean and sanitary inside the pump body. Food centrifugal pump.
  • a press-formed food centrifugal pump includes a pump body, a pump cover mounted in the pump body, an impeller, a pump shaft, and a motor disposed outside the pump body, the impeller being mounted to the pump a shaft, and is driven to rotate by the motor;
  • the pump body is provided with an inlet pipe and an outlet pipe;
  • the impeller is a semi-open structure, and is composed of a blade, a 'hub and a rear cover, and the front end of the blade is close to
  • the inner side of the axial surface of the pump body is sealed with an end surface;
  • the pump body is integrally formed by a metal plate, and an outer side of the axial surface is provided with an inlet pipe bracket supporting the inlet pipe, One end of the inlet pipe bracket is connected to the outer side of the pump body, and the other end is sleeved on the inlet pipe and fixedly connected thereto.
  • stamping and welding shaped food centrifugal pump provided according to the present invention also has the following subsidiary technical features: 1
  • the blade is a two-in-one monolithic structure, and two adjacent blades are stamped and formed by a metal plate to form a blade body having a U-shaped cross section.
  • Each of the blades is a circular arc structure in which two segments are inscribed in the radial direction.
  • the inlet tube bracket has an overall shape of a truncated cone shape, and its diameter gradually increases from front to back, and includes a conical main body portion and a rear end wall integrally formed with the main body portion, a front end wall, and a front end wall An outer circumferential wall; the rear end wall is welded to an axial surface of the pump body; the peripheral wall is sleeved on the outer side of the front end of the inlet pipe and welded thereto. .
  • the rear end wall is a vertical wall that fits on and is welded to a vertical wall of the axial surface of the pump body.
  • the central portion of the axial face of the pump body is recessed inwardly to form a peripheral wall at the center, a slanted wall, and an intermediate wall connecting the inclined wall and the vertical wall.
  • the inlet width of the blade is greater than the outlet width thereof, and the front end forms a beveled edge with an inclination angle ⁇ ; the inclination angle ⁇ of the inclined wall of the pump body is equal to the inclination angle ⁇ of the oblique end of the blade front end, and the end face is formed therebetween seal.
  • the gap between the front end of the blade and the inclined wall is less than 2 mm.
  • the radial direction of the pump body is cylindrical, a radial tongue is disposed near the outlet, and a drain hole is disposed at a lowermost end of the pump body.
  • the motor is fixed to the pump body by means of a connecting frame, and a front end of the middle portion of the connecting frame is formed with a supporting structure rigidly supporting the pump cover.
  • the food centrifugal pump for stamping and welding formed according to the present invention is firstly manufactured by stamping and welding process (main parts such as pump body, pump cover, impeller, inlet pipe bracket, etc. are stamped and welded together), forming Simple and convenient, it not only reduces the production cost, but also overcomes many disadvantages such as pollution, power consumption and consumables of the casting process.
  • the semi-open impeller structure due to the semi-open impeller structure, the fluid permeability is better than that of the closed impeller structure. Even if the liquid flow is thick, it is not easy to block when passing through the impeller.
  • the centrifugal pump is not only applicable to a wide range of applications, but can be used for pumping various liquid foods, and can always operate reliably and efficiently; again, since the inlet pipe is to be The bracket is placed outside the pump body (instead of the inside), thus making the inside of the pump body cleaner and hygienic, which is beneficial to ensure the quality of the food.
  • Figure 1 is a front elevational view of a press-welded food centrifugal pump provided in accordance with the present invention, the internal structure of which is shown in partial cross-section;
  • Fig. 2 is a full-sectional enlarged view of the impeller of the food centrifugal pump shown in Fig. 1;
  • Figure 3A is a front elevational view showing the blade structure of the impeller shown in Figure 2, showing the number and distribution of the blades;
  • Figure 3B is a cross-sectional view taken along line B-B of Figure 3A, showing the overall structure of the blade in one;
  • Figure 4 is a full-sectional enlarged view of the inlet pipe bracket of the food centrifugal pump shown in Figure 1;
  • FIG 5 is a full-sectional enlarged view of the pump body of the food centrifugal pump shown in Figure 1, for the sake of clarity, the structure of the inlet tube holder fixed thereto is also shown;
  • Figure 6 is a view taken along line C of Figure 5, showing the mounting position of the tongue.
  • a press-formed food centrifugal pump includes a pump body 1 and a pump cover 2, an impeller 3, a pump shaft 4, and a pump shaft 4 installed in the pump body 1 and disposed outside the pump body 1.
  • the motor 5 is mounted on the pump shaft 4 and driven to rotate by the motor 5; the pump body 1 is provided with an inlet pipe 11 and an outlet pipe 12. Since the centrifugal pump is manufactured by stamping and welding process (main parts such as pump body, pump cover, impeller, inlet pipe bracket, etc. are stamped and welded together), the forming is simple and convenient, and the ratio is reduced compared with the cast food.
  • the production cost overcomes many shortcomings such as pollution, power consumption and consumables of the casting process.
  • the motor 5 is fixed to the pump body 1 by means of a connecting frame 6, and the front end of the middle portion of the connecting frame 6 is formed with a supporting structure 61 rigidly supporting the pump cover 2. Due to the rigid support of the support structure 61 to the pump cover 2, the rigidity of the pump cover 2 is greatly enhanced, 'the deformation of the pump cover 2 at high pressure and high temperature is prevented or greatly reduced, thereby ensuring the mechanical seal 62. Work reliability.
  • the pump body 1 is integrally stamped and formed by a metal plate, and an outer side of the axial face is provided with an inlet pipe bracket 13 supporting the inlet pipe 11 , and the inlet pipe bracket 13 is end-to-end.
  • the outer side of the pump body 1 is connected, and the other end is sleeved on the inlet pipe 11 and fixedly connected thereto. Since the inlet pipe bracket 13 is disposed outside the pump body 1 (instead of the inside), on the one hand, the obstruction of the liquid flow in the pump body is reduced, and the liquid flow is made smoother; on the other hand, the interior of the pump body 1 is made cleaner. , health, to prevent contamination of the food delivered.
  • the impeller 3 is a semi-open structure composed of a blade 31, a hub 32 and a rear cover 33, the front end of which is adjacent to the inner side of the axial face of the pump body 1. And with it Form an end face seal.
  • the impeller of the semi-open structure not only eliminates the front cover of the impeller, but also reduces the production cost; and the liquid flow has good passage, even if the thicker fluid passes through the It is not easy to block when the impeller is used. Therefore, the centrifugal pump can be used for extracting various foods, has a wide range of applications, and can operate reliably and efficiently under various conditions.
  • the blade 31 is a two-in-one monolithic structure, and two adjacent blades 31 are stamped and formed from a metal plate to form a U-shaped cross section.
  • Leaf body Such a blade structure can not only greatly improve the strength and rigidity of the blade of the semi-open impeller, thereby improving its operational reliability; and because the bottom between the two blades 31 forms a flat fit to the rear cover 33 The wall 311, thus the blade 31 and the rear cover 33 can be easily welded, and is firm and reliable after welding.
  • each of the blades 31 has a circular arc structure in which two segments are inscribed in the radial direction, and this structure enables each of the blades 31 to perform energy conversion efficiently.
  • the inlet tube holder 13 has an overall shape of a truncated cone whose diameter gradually increases from front to back, including a conical body portion 131 and
  • the main body portion 131 is a body-shaped rear end wall 132, a front end wall 133, and a peripheral wall 134 extending outward from the front end wall 133;
  • the rear end wall 132 is welded to the axial surface of the pump body 1;
  • the peripheral wall 134 is sleeved on the outside of the front end of the inlet pipe 11, and is welded thereto.
  • the structure of the inlet pipe bracket 13 ensures strength and rigidity, and also improves the strength and rigidity of the pump body 1.
  • the rear end wall 132 is a vertical wall (a wall perpendicular to the axis of the pump body 1, the same below), which is attached to a vertical wall of the axial face of the pump body 1. 14 and welded with it.
  • the two vertical walls fit snugly together and have sufficient contact area to ensure a firm and reliable weld.
  • the central portion of the axial face of the pump body 1 is recessed inwardly to form a central wall 19 in the middle, an inclined wall 15 and an intermediate wall connecting the inclined wall 15 and the vertical wall 14.
  • the peripheral wall 19 is fitted to the outside of the rear end of the inlet pipe 11 and welded thereto.
  • the peripheral wall 19, the inclined wall 15 and the intermediate wall 16 form a substantially U-shaped cross section, and the structural design of the unevenness not only greatly enhances the strength and rigidity of the pump body 1, but also has It is advantageous for the cooperation with the front end of the impeller 3 (details described below).
  • the inlet width of the vane 31 is larger than the outlet width thereof, and the front end forms a beveled edge with an inclination angle ⁇ ;
  • the inclination angle ⁇ of the inclined wall 15 is equal to the inclination angle ⁇ of the oblique side of the front end of the vane 31,
  • the end face seal is formed between the blades, and the gap between the inclined front end of the blade 31 and the inclined wall 15 is less than 2 mm. Therefore, a good sealing effect can be achieved between the blade 31 and the inclined wall 15, and leakage of the liquid flow can be effectively prevented.
  • the radial direction of the pump body 1 is cylindrical, and a radial tongue is provided near the outlet.
  • the tongue 17 can further improve the hydraulic performance of the pump.
  • the lowermost end of the pump body 1 is provided with a liquid discharge hole 18. As shown in the figure, the liquid discharge hole 18 is blocked by a bolt during operation. When it is necessary to remove the remaining liquid flow in the pump body 1, the bolt can be removed. The liquid is drained through the drain hole 18.
  • the food centrifugal pump provided by the invention overcomes the shortage of power consumption, consumables, labor intensity, environmental pollution, difficulty in installation and maintenance, low efficiency, etc. of the existing cast food pump due to stamping and welding of the metal body, and has reasonable structure and strength. Good rigidity, high operating efficiency, good performance and other advantages, its weight is equivalent to 1/4 of the same type of casting pump, the efficiency is 5-7% higher than similar casting pumps, and the cost is equivalent to 2/3 of similar casting pumps.

Description

一种冲压焊接成型的食品离心泵
技术领域：
本发明涉及一种离心泵， 尤其涉及一种由金属板冲压焊接成型的、 用于加工食品的食品离心泵。
背景技术：
食品离心泵是一种需求量大、 应用面广的离心泵产品， 广泛应用于 食品、 饮料、 啤酒、 化工等工业部门。 现有技术中， 食品离心泵一般都 采用铸造方法加工。 而铸造工艺是一种耗电高、 耗材多、 劳动强度大， 对环境有污染的加工工艺。 此外， 铸造食品泵还普遍存在体积大、 重量 重， 安装、 维修困难， 效率低下等诸多不足， 对于类似于食品泵的这种 小流量微型离心泵的某些部件， 如出口宽度窄， 流量小的叶轮， 还因结 构尺寸所限而无法铸造。 因此， 铸造食品泵是一种非常不理想的食品泵。
国家知识产权局 2002年 4月 10日授权公告的 CN1082627号发明专利 (申请号为 99111134. 6 ) ， 公开了一种 "冲焊接成型离心泵及其制造方 法" ， 该离心泵由入口法兰、 出口法兰、 后盖、 泵壳和叶轮构成， 泵壳 有一个泵壳与叶轮之间冲压成一个沿液流方向、 径向向外逐渐增大的， 断面呈大致半圆形的， 接近 360度的全螺旋型涡室， 并且有一个大致为椭 圆形的出口端孔， 出口弯颈与泵壳的出口端孔连通， 泵壳的出口弯颈悍 接在泵壳的出口端孔， 其纵截面为变直径椭圆形， 泵壳内设有迷宫支架 环。 该离心泵尽管相对铸造泵而言具有诸多优点， 但一方面由于采用封 闭式叶轮结构， 当液体较稠时， 在叶轮内流动过程中容易堵塞， 通过性 差； 另一方面， 由于泵体内部设有支架， 不仅会阻碍液体的流动， 而且 会使得通过泵体的流体不够清洁、 卫生。 因此这种冲压焊接离心泵无法 作为食品泵使用。
发明内容： 本发明要解决的技术问题是， 克服上述现有技术之不足， 提供一种 不仅制造工艺简单、 加工方便、 成本低廉， 而且通过性好、 过流通畅、 且泵体内部清洁卫生的冲压焊接成型的食品离心泵。
按照本发明提供的冲压焊接成型的食品离心泵， 包括泵体和安装于 所述泵体内的泵盖、 叶轮、 泵轴以及设于所述泵体外侧的电机， 所述叶 轮安装于所述泵轴上， 并由所述电机驱动旋转； 所述泵体上设有进口管 和出口管； 所述叶轮为半开式结构， 由叶片、 '轮毂和后盖板组成， 所述 叶片的前端靠近所述泵体的轴向面的内侧， 并与之形成端面密封； 所述 泵体由一金属板整体冲压成型， 其轴向面的外侧设有一支撑所述进口管 的进口管支架， 所述进口管支架一端与所述泵体的外侧连接， 另一端套 合于所述进口管上并与之固定连接。
按照本发明提供的冲压焊接成型的食品离心泵还具有如下附属技术 特征： 1
所述叶片为二合一整体式结构， 相邻两所述叶片由一块金属板冲压 成形， 构成横截面为 U型的叶片体。
每一所述叶片在径向方向为两段相内切的圆弧结构。
所述进口管支架的整体形状为圆台状， ·其直径从前至后逐渐增大， 包括圆锥形的主体部分和与所述主体部分一体成形的后端壁、 前端壁及 自所述前端壁向外延伸的周壁； 所述后端壁焊接于所述泵体的轴向面上; 所述周壁套于所述进口管前端的外部， 并与之焊接在一起。.
所述后端壁为一垂直壁， 其贴合于所述泵体的轴向面的一垂直壁上， 并与之焊接在一起。 所述泵体的轴向面的中部向内凹陷， 形成位于中部 的一周壁、 一斜壁和连接所述斜壁与所述垂直壁的一中间壁。 所述叶片的进口宽度大于其出口宽度， 前端形成倾角为 α的斜边； 所述泵体的斜壁的倾角 Ρ与所述叶片前端斜边的倾角 α相等， 二者之间 形成所述端面密封。 所述叶片的前端与所述斜壁之间的间隙小于 2mm。
所述泵体的径向面为圆柱形， 径向面靠近出口处设有一隔舌， 所述 泵体的最下端设有一排液孔。
所述电机借助一连接架固定于所述泵体上， 所述连接架的中部的前 端成形有刚性支撑所述泵盖的支撑结构。
按照本发明提供的冲压焊接成形的食品离心泵， 首先由于其釆用冲 压焊接工艺制造 （主要零部件如泵体、 泵盖、 叶轮、 进口管支架等皆冲 压而成并焊接在一起） ， 成形简单方便， 既降低了生产成本， 又克服了 铸造工艺的污染、 耗电、 耗材等诸多缺点； 其次， 由于采用半开式叶轮 结构， 与封闭式叶轮的结构相比， 流体的通过性更好， 即使液流较稠，： 在通过该叶轮时也不容易堵塞， 因此该离心泵不仅适用范围广， 可用于 抽取各种液体食品， 而且始终能可靠、 高效地运行； 再次， 由于将进口 管支架设于泵体的外部 （而不是内部） ， 因而使得泵体内部更加清洁、 卫生， 有利于保证食品的质量。
附图说明：
下面结合附图给出的优选实施例， 对本发明的特征和优点做进一步 的详细说明， 其中：
图 1为按照本发明提供的冲压焊接成形的食品离心泵的正视图， 图中 采用局部剖视示出了其内部结构；
+ 图 2为图 1所示食品离心泵的叶轮的全剖放大图；
图 3A为图 2所示叶轮的叶片结构的正视示意图， 图中示出了叶片的数 量及分布状态；
图 3B为图 3A的 B- B剖视图， 图中示出了叶片二合一的整体结构； 图 4为图 1所示食品离心泵的进口管支架的全剖放大视图；
图 5为图 1所示食品离心泵的泵体的全剖放大视图， 为清楚起见， 图 中同时示出了与其固定在一起的进口管支架的结构；
图 6为图 5的 C向视图， 图中示出了隔舌的安装位置。
具体实施方式：
参见图 1， 按照本发明提供的冲压焊接成型的食品离心泵， 包括泵体 1和安装于所述泵体 1内的泵盖 2、 叶轮 3、 泵轴 4以及设于所述泵体 1外侧 的电机 5， 所述叶轮 3安装于所述泵轴 4上， 并由所述电机 5驱动旋转； 所 述泵体 1上设有进口管 11和出口管 12。 由于该离心泵采用冲压焊接工艺制 造 （主要零部件如泵体、 泵盖、 叶轮、 进口管支架等皆冲压而成并焊接 在一起） ， 成形简单方便， 与铸造食品相 '比， 既降低了生产成本， 又克 服了铸造工艺的污染、 耗电、 耗材等诸多缺点。
如图 1中所示， 所述电机 5借助一连接架 6固定于所述泵体 1上， 所述 连接架 6的中部的前端成形有刚性支撑所述泵盖 2的支撑结构 61。 由于所 述支撑结构 61对所述泵盖 2的刚性支撑， 因此大大增强了泵盖 2的刚度, ' 防止或大大减少了泵盖 2在高压、 高温时的变形， 从而保证了机械密封 62 的工作可靠性。
如图 1中所示， 所述泵体 1由一金属板整体冲压成型， 其轴向面的外 侧设有一支撑所述进口管 11的进口管支架 13， 所述进口管支架 13—端与 所述泵体 1的外侧连接，另一端套合于所述进口管 11上，并与之固定连接。 由于将进口管支架 13设于泵体 1的外部 （而不是内部） ， 因而一方面减少 了泵体内对液流的阻碍， 使液流更通畅； 另一方面， 使得泵体 1的内部更 加清洁、 卫生， 防止对所输送的食品造成污染。
如图 1、 2中所示， 所述叶轮 3为半开式结构， 由叶片 31、 轮毂 32和后 盖板 33组成， 所述叶片 31的前端靠近所述泵体 1的轴向面的内侧， 并与之 形成端面密封。 该半开式结构的叶轮与现有技术中封闭结构的叶轮相比， 不仅省去了叶轮前盖板， 降低了生产成本； 而且使液流具有良好的通过 性， 即使较稠的流体通过该叶轮时也不容易堵塞。 因此该离心泵能用于 抽取各种食品， 适用范围广， 而且在各种情况下皆能可靠、 高效地运行。
参见图 3A、 3B， 在本发明给出的优选实施例中， 所述叶片 31为二合 一整体式结构， 相邻两所述叶片 31由一块金属板冲压成形， 构成横截面 为 U型的叶片体。这种叶片结构不仅能大大提高这种半开式叶轮的叶片的 强度和刚度， 从而提高其工作可靠性； 而且由于两叶片 31之间的底部形 成能贴合于所述后盖板 33的平壁 311， 因而所述叶片 31与后盖板 33之间能 方便地焊接， 且焊接后牢固可靠。
如图 3A中所示， 每一所述叶片 31在径向方向为两段相内切的圆弧结 构， 这种结构使得各所述叶片 31能高效地进行能量转换。
参见图 4和 5， 在本发明给出的优选实施例中， 所述进口管支架 13的 整体形状为圆台状， 其直径从前至后逐渐增大， 包括圆锥形的主体部分 131和与所述主体部分 131—体成形的后端壁 132、 前端壁 133及自所述前 端壁 133向外延伸的周壁 134; 所述后端壁 132焊接于所述泵体 1的轴向面 上； 所述周壁 134套于所述进口管 11前端的外部， 并与之焊接在一起， 所 述进口管支架 13的结构形式， 保证了其强度和刚度， 而且也提高了泵体 1 的强度和刚度。
如图 5中所示， 所述后端壁 132为一垂直壁 (垂直于所述泵体 1轴线的 壁，下同）， 其贴合于所述泵体 1的轴向面的一垂直壁 14上， 并与之焊接在 一起。 两个垂直壁能很好贴合一起， 而且有足够的接触面积， 从而保证 焊接得牢固可靠。
参见图 1和 5， 所述泵体 1的轴向面的中部向内凹陷， 形成位于中部的 一周壁 19、 一斜壁 15和连接所述斜壁 15与所述垂直壁 14的一中间壁 16， 所述周壁 19套合于所述进口管 11后端的外部， 并与之焊接在一起。 如图 中所示， 所述周壁 19、 斜壁 15和中间壁 16形成截面大体为 U型的结构， 这 种凹凸的结构设计不仅大大增强了所述泵体 1的强度和刚度， 而且也有利 于与所述叶轮 3前端的配合 （详细下述） 。
如图 2中所示， 所述叶片 31的进口宽度大于其出口宽度， 前端形成倾 角为 α的斜边； 所述斜壁 15的倾角 β与所述叶片 31前端斜边的倾角 α相 等， 二者之间形成所述端面密封， 所述叶片 31倾斜的前端与所述斜壁 15 之间的间隙小于 2mm。 因此所述叶片 31与所述斜壁 15之间能达到良好的密 封效果， 有效防止液流的泄露。
参见图 6， 所述泵体 1的径向面为圆柱形， 径向面靠近出口处设有一 隔舌 17， 所述隔舌 17能进一步提高泵的水力性能。 所述泵体 1的最下端设 有一排液孔 18， 如图中所示， 工作时排液孔 18由一螺栓堵塞， 当需要排 除泵体 1内的剩余液流时， 取下螺栓即能通过该排液孔 18排液。
本发明提供的食品离心泵由于由金属体冲压焊接成型， 克服了现有 铸造食品泵耗电， 耗材， 劳动强度大， 污染环境， 安装、 维修困难， 效 率低下等诸多不足， 具有结构合理、 强度刚度好、 运行效率高、 通过性 能好等诸多优点， 其重量相当于同类铸造泵的 1/4， 效率比同类铸造泵高 5-7%, 造价相当于同类铸造泵的 2/3。
上述优选实施例仅供说明本发明之用.， 而并非对本发明的限制。 本 领域的普通技术人员， 在不脱离本发明的精神和范围内指引下， 还可做 出各种变形和变换， 因此所有等同技术方案皆属于本发明的保护范围。

Claims

权 利 要 求 书
1、 一种冲压焊接成型的食品离心泵， 包括泵体 （1) 和安装于所述 泵体（1) 内的泵盖 （2) 、 叶轮（3) 、 泵轴 （4) 以及设于所述泵体（1) 外侧的电机 （5) ， 所述叶轮 （3) 安装于所述泵轴 （4) 上， 并由所述电 机 （5) 驱动旋转； 所述泵体 （1)上设有进口管 （11).和出口管 （12) ； 其特征在于： 所述叶轮 （3) 为半开式结构， 由叶片 （31) 、 轮毂 （32) 和后盖板 （33) 组成， 所述叶片 （31) 的前端靠近所述泵体 （1) 的轴向 面的内侧， 并与之形成端面密封； 所述泵体（1) 由一金属板整体冲压成 型， 其轴向面的外侧设有一支撑所述进口管 （11) 的进口管支架 （13) ， 所述进口管支架 （13) —端与所述泵体 （1) 的外侧连接， 另一端套合于 所述进口管 （11) 上并与之固定连接。 1
2、 根据权利要求 1所述的冲压焊接成型的食品离心泵， 其特征在于： 所述叶片 （31) 为二合一整体式结构， 相邻两所述叶片 （31) 由一块金 属板冲压成形， 构成横截面为 U型的叶片体。
3、 根据权利要求 1或 2所述的冲压焊接 型的食品离心泵， 其特征在 于： 每一所述叶片 （31) 在径向方向为两段相内切的圆弧结构。
4、 根据权利要求 1或 2所述的冲压焊接成型的食品离心泵， 其特征在 于： 所述进口管支架 （13) 的整体形状为圆台状， 其直径从前至后逐渐 增大， 包括圆锥形的主体部分 （131) 和与所述主体部分 （131) —体成 形的后端壁 （132) 、 前端壁 （133)及自所述前端壁 （133) 向外延伸的 周壁 （134) ； 所述后端壁 （132) 焊接于所述泵体 （1) 的轴向面上； 所 述周壁 （134) 套于所述进口管 （11) 前端的外部， 并与之焊接在一起。
5、 根据权利要求 4所述的冲压焊接成型的食品离心泵， 其特征在于: 所述后端壁 （132) 为一垂直壁， 其贴合于所述泵体 （1) 的轴向面的一 垂直壁 （14) 上， 并与之焊接在一起。
6、 根据权利要求 5所述的冲压焊接成型的食品离心泵， 其特征在于: 所述泵体（1)的轴向面的中部向内凹陷， 形成位于中部的一周壁（19) 、 一斜壁（15)和连接所述斜壁（15)与所述垂直壁（14)的一中间壁（16)； 所述周壁 （18) 套合于所述进口管 （11) 后端的外部， 并与之焊接在一 起。
7、 根据权利要求 6所述的冲压焊接成型的食品离心泵， 其特征在于: 所述叶片 （31) 的进口宽度大于其出口宽度， 前端形成倾角为 α的斜边; 所述斜壁 （15) 的倾角 β与所述叶片 （31) 前端斜边的倾角 α相等， 二 者之间形成所述端面密封。 '
8、 根据权利要求 7所述的冲压焊接成型的食品离心泵， 其特征在于: 所述叶片 （31) 的前端与所述斜壁 （15) 之间的间隙小于 2ram。
9、 根据权利要求 1或 2或 3所述的冲压焊接成型的食品离心泵， 其特 征在于： 所述泵体 （1) 的径向面为圆柱形， 径向面靠近出口处设有一隔 舌 (17) 。
10、 根据权利要求 1或 2或 3所述的冲压焊接成型的食品离心泵， 其特 征在于： 所述泵体 （1) 的最下端设有一排液孔 （18) 。
11、 根据权利要求 1或 2或 3所述的冲压悍接成型的食品离心泵， 其特 征在于： 所述电机 （5) 借助一连接架 （6) 固定于所述泵体 （1) 上， 所 述连接架 （6) 的中部的前端成形有刚性支撑所述泵盖 （2) 的支撑结构 (61) 。
PCT/CN2006/000548 2006-01-21 2006-03-30 Pompe centrifuge pour aliments fabriquée par compression et soudage WO2007082417A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/161,215 US8113802B2 (en) 2006-01-21 2006-03-30 Food centrifugal pump formed by stamping and welding having a seal arrangement between the impeller and casing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006100333202A CN100404874C (zh) 2006-01-21 2006-01-21 一种冲压焊接食品泵
CN200610033320.2 2006-01-21

Publications (1)

Publication Number Publication Date
WO2007082417A1 true WO2007082417A1 (fr) 2007-07-26

Family

ID=36866519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/000548 WO2007082417A1 (fr) 2006-01-21 2006-03-30 Pompe centrifuge pour aliments fabriquée par compression et soudage

Country Status (3)

Country Link
US (1) US8113802B2 (zh)
CN (1) CN100404874C (zh)
WO (1) WO2007082417A1 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101713411B (zh) * 2008-10-07 2011-11-16 阳江市新力工业有限公司 带密封盖板结构的半开式叶轮泵
CN102062117A (zh) * 2009-11-16 2011-05-18 上海连成（集团）有限公司 一种新型叶轮
RU2602712C2 (ru) 2011-06-17 2016-11-20 Джетс Инвест Ас Винтовой жидкостный кольцевой насос со встроенным измельчителем
CN103438007A (zh) * 2013-06-08 2013-12-11 广东永力泵业有限公司 一种冲压焊接潜污泵
CN106457964B (zh) * 2014-06-11 2019-04-02 松下知识产权经营株式会社 温度调节单元、温度调节系统和具备温度调节单元的车辆
EP3085961B1 (de) * 2015-04-20 2020-08-05 Grundfos Holding A/S Mehrstufige kreiselpumpe
CN105422502B (zh) * 2015-12-18 2019-04-23 李良荣 一种智能卫生泵
DE102016008558A1 (de) * 2016-06-03 2017-12-07 Gea Tds Gmbh Verfahren und Anlage zur Behandlung hitzeempfindlicher flüssiger Nahrungsmittelprodukte und Zentrifugalpumpe für eine solche Anlage
AU2017274473B2 (en) * 2016-06-03 2020-11-19 Gea Tds Gmbh Centrifugal pump for heat-sensitive fluid food products and impeller for a centrifugal pump of this type
AU201614369S (en) * 2016-08-12 2016-10-27 Weir Minerals Australia Ltd Impeller
USD810788S1 (en) * 2016-08-25 2018-02-20 Weir Minerals Australia Ltd. Pump impeller
USD810789S1 (en) * 2016-08-25 2018-02-20 Weir Minerals Australia Ltd. Pump impeller
US10207371B1 (en) 2016-09-13 2019-02-19 Hanger & Pipe Accessories, Inc. Methods and systems for making poison pads
CN107355418A (zh) * 2017-09-01 2017-11-17 海城三鱼泵业有限公司 一种低比转速不锈钢冲压拉伸焊接式叶轮及其工艺
CN109139482A (zh) * 2018-08-30 2019-01-04 李宏运 一种钢板旋压、冲压焊接离心水泵
CN114321001B (zh) * 2022-03-15 2022-06-10 四川川工泵业有限公司 一种旋喷泵用的叶轮
CN115365621A (zh) * 2022-09-26 2022-11-22 上海电气核电设备有限公司 一种泵壳与薄壁支架的焊接方法

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168297A (ja) * 1983-03-16 1984-09-21 Hitachi Ltd 溶接羽根車
CN87200309U (zh) * 1987-01-03 1987-10-21 淄博饮料泵厂 自吸式防腐部分流泵
US5069599A (en) * 1989-08-18 1991-12-03 Ebara Corporation Metal plate stator case, particularly for radial centrifugal pumps
US5235744A (en) * 1989-07-05 1993-08-17 Ebara Corporation Method of manufacturing a centrifugal pump casing
EP0646729A1 (de) * 1993-09-06 1995-04-05 KSB Aktiengesellschaft Als Blechformteil ausgebildete Leiteinrichtung
CN1138670A (zh) * 1996-03-26 1996-12-25 阳江市不锈钢冲压泵有限公司 冲压成型离心泵及其制造方法
JPH0968197A (ja) * 1995-08-28 1997-03-11 Mitsubishi Heavy Ind Ltd 遠心式ポンプ又は圧縮機の羽根車
CN2275169Y (zh) * 1996-07-22 1998-02-25 南京振华机械厂 半开式叶轮管道自动增压泵
CN2355135Y (zh) * 1998-12-22 1999-12-22 阳江市新粤华不锈钢泵有限公司 金属板冲压焊接成型微型离心泵
CN1243919A (zh) * 1999-07-27 2000-02-09 阳江市新粤华不锈钢泵有限公司 冲压焊接成型离心泵及其制造方法
CN2410448Y (zh) * 1999-10-29 2000-12-13 程盛林 双向泵
US20030002985A1 (en) * 2001-07-02 2003-01-02 Shu-Chen Tsui Spiral fluted wheel for a pump
CN2591293Y (zh) * 2002-09-19 2003-12-10 阳江市新粤华不锈钢泵有限公司 低比转速冲压焊接成型卧式多级离心泵
CN1131379C (zh) * 1998-10-30 2003-12-17 阳江市新粤华不锈钢泵有限公司 冲压焊接成型离心泵及其制造方法
CN2600618Y (zh) * 2002-09-19 2004-01-21 阳江市新粤华不锈钢泵有限公司 一种新型低比转速冲压焊接成型卧式双级离心泵
CN2809296Y (zh) * 2005-08-03 2006-08-23 阳江市新力工业有限公司 改进的单级离心泵

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE14988E (en) * 1920-11-16 parsons
US224870A (en) * 1880-02-24 Rotary pump
US640345A (en) * 1899-09-29 1900-01-02 George Alfred Wilberforce Centrifugal pump.
US869868A (en) * 1905-01-12 1907-10-29 Organ Power Company Organ-blowing apparatus.
US1460160A (en) * 1921-03-07 1923-06-26 Bour Harry E La Pump
US1864834A (en) * 1927-12-28 1932-06-28 Buffalo Steam Pump Company Centrifugal pump impeller
US2117011A (en) * 1935-02-27 1938-05-10 Ward E Pratt Centrifugal pump
US2028783A (en) * 1935-06-05 1936-01-28 Duriron Co Centrifugal pump
US2291797A (en) * 1938-10-24 1942-08-04 Cherry Burrell Corp Centrifugal pump
US2347386A (en) * 1939-05-25 1944-04-25 Nash Engineering Co Pump
US2890660A (en) * 1953-05-26 1959-06-16 Ajem Lab Inc Non-clogging centrifugal pump
US3115843A (en) * 1961-01-31 1963-12-31 Ingersoll Rand Co Centrifugal pump
US3221661A (en) * 1961-12-18 1965-12-07 Electronic Specialty Co Low-suction head pumps
US3272129A (en) * 1963-12-18 1966-09-13 Warner Machine Products Inc Pumping system and pump therefor
US3801226A (en) * 1970-08-28 1974-04-02 Goulds Pumps Pump impeller
DE4001383A1 (de) * 1989-01-19 1990-07-26 Ebara Corp Pumpengehaeuse
JP2809487B2 (ja) * 1989-07-05 1998-10-08 株式会社荏原製作所 遠心ポンプケーシング
JPH0758080B2 (ja) * 1989-07-15 1995-06-21 株式会社荏原製作所 板金製うず巻ポンプケーシング
JP2676450B2 (ja) * 1991-01-11 1997-11-17 株式会社荏原製作所 板金製ポンプケーシング
DE69329396T2 (de) * 1992-04-14 2001-04-12 Ebara Corp Pumpengehäuse in Blechbauweise
CN2258548Y (zh) * 1995-11-20 1997-07-30 殷润堉 一种锅炉给水旋涡泵
US5873698A (en) * 1997-03-17 1999-02-23 Thalmann; William H. Centrifugal pump
DE29716463U1 (de) * 1997-09-15 1997-11-27 Klein Schanzlin & Becker Ag Kreiselpumpengehäuse
US6200090B1 (en) * 1999-04-12 2001-03-13 Industrial Technology Research Institute Pump casing for sheet metal pump
DE10012181C2 (de) * 2000-03-13 2002-05-16 Ritz Pumpenfabrik Gmbh & Co Kg Kreiselpumpe mit Noppen-Laufrad und Noppen-Laufrad hierfür
CN2420173Y (zh) * 2000-04-24 2001-02-21 王清刚 车载泵
JP3668465B2 (ja) * 2001-04-18 2005-07-06 本田技研工業株式会社 ウォーターポンプ用インペラ
US6884032B1 (en) * 2003-11-19 2005-04-26 General Motors Corporation Water pump and method of closure

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168297A (ja) * 1983-03-16 1984-09-21 Hitachi Ltd 溶接羽根車
CN87200309U (zh) * 1987-01-03 1987-10-21 淄博饮料泵厂 自吸式防腐部分流泵
US5235744A (en) * 1989-07-05 1993-08-17 Ebara Corporation Method of manufacturing a centrifugal pump casing
US5069599A (en) * 1989-08-18 1991-12-03 Ebara Corporation Metal plate stator case, particularly for radial centrifugal pumps
EP0646729A1 (de) * 1993-09-06 1995-04-05 KSB Aktiengesellschaft Als Blechformteil ausgebildete Leiteinrichtung
JPH0968197A (ja) * 1995-08-28 1997-03-11 Mitsubishi Heavy Ind Ltd 遠心式ポンプ又は圧縮機の羽根車
CN1138670A (zh) * 1996-03-26 1996-12-25 阳江市不锈钢冲压泵有限公司 冲压成型离心泵及其制造方法
CN2275169Y (zh) * 1996-07-22 1998-02-25 南京振华机械厂 半开式叶轮管道自动增压泵
CN1131379C (zh) * 1998-10-30 2003-12-17 阳江市新粤华不锈钢泵有限公司 冲压焊接成型离心泵及其制造方法
CN2355135Y (zh) * 1998-12-22 1999-12-22 阳江市新粤华不锈钢泵有限公司 金属板冲压焊接成型微型离心泵
CN1243919A (zh) * 1999-07-27 2000-02-09 阳江市新粤华不锈钢泵有限公司 冲压焊接成型离心泵及其制造方法
CN2410448Y (zh) * 1999-10-29 2000-12-13 程盛林 双向泵
US20030002985A1 (en) * 2001-07-02 2003-01-02 Shu-Chen Tsui Spiral fluted wheel for a pump
CN2591293Y (zh) * 2002-09-19 2003-12-10 阳江市新粤华不锈钢泵有限公司 低比转速冲压焊接成型卧式多级离心泵
CN2600618Y (zh) * 2002-09-19 2004-01-21 阳江市新粤华不锈钢泵有限公司 一种新型低比转速冲压焊接成型卧式双级离心泵
CN2809296Y (zh) * 2005-08-03 2006-08-23 阳江市新力工业有限公司 改进的单级离心泵

Also Published As

Publication number Publication date
CN100404874C (zh) 2008-07-23
CN1804401A (zh) 2006-07-19
US20100247340A1 (en) 2010-09-30
US8113802B2 (en) 2012-02-14

Similar Documents

Publication Publication Date Title
WO2007082417A1 (fr) Pompe centrifuge pour aliments fabriquée par compression et soudage
CN201265533Y (zh) 带密封盖板结构的半开式叶轮泵
CN102072161B (zh) 冲压焊接成型的管道泵
CN101713411B (zh) 带密封盖板结构的半开式叶轮泵
CN201535256U (zh) 冲压焊接成型的管道泵
CN211384171U (zh) 一种离心式气液分离器
CN205841307U (zh) 一种叶轮结构
CN216418326U (zh) 防粘壁浓缩器
US6409474B1 (en) Centrifugal pump formed by pressing and welding and its manufacturing process
WO2021093830A1 (zh) 集热泵
US11255344B2 (en) Pump device
CN201537538U (zh) 一种用于冻干机的汽水分离器
CN211270271U (zh) 一种噪音小的食品加工机
CN210079493U (zh) 一种双吸式搅拌器
KR101933342B1 (ko) 만곡된 날개구조를 갖는 수중펌프용 임펠러 및 이것이 적용된 수중펌프
CN208057490U (zh) 一种母液回流泵
CN211422929U (zh) 焊接式轴流泵泵体
CN2187689Y (zh) 节能型双吸离心循环水泵
CN220047346U (zh) 新型过滤管
US11835060B2 (en) Range hood
CN212594304U (zh) 一种耐腐蚀型液体过滤器
CN213360552U (zh) 一种离心泵叶轮
CN212225571U (zh) 一种平衡式旋涡泵
CN217713752U (zh) 一种带有手阀的法兰三通
CN217524814U (zh) 一种食品加工机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 12161215

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06722200

Country of ref document: EP

Kind code of ref document: A1