CN108474381A

CN108474381A - Ventilating mechanisms for the pump in container

Info

Publication number: CN108474381A
Application number: CN201780007571.XA
Authority: CN
Inventors: A.顺克; P.容
Original assignee: KSB SAS
Current assignee: KSB SAS
Priority date: 2016-01-22
Filing date: 2017-01-11
Publication date: 2018-08-31
Anticipated expiration: 2037-01-11
Also published as: EP3405677B1; DE102016200910A1; DK3405677T3; CN108474381B; HUE048578T2; PL3405677T3; EP3405677A1; WO2017125297A1

Abstract

The present invention relates to one kind having container（1）And device（9）Equipment.Described device（9）Including being arranged in the container（1）In centrifugal pump（10）And it is arranged in the centrifugal pump（10）Top, for driving the centrifugal pump（10）Motor（13）.The centrifugal pump（10）With impeller and first shell part（11）.The first shell part（11）In the impeller（24）Height on and/or in the impeller（24）Top have at least one ventilating mechanisms（27）.

Description

Ventilating mechanisms for the pump in container

Technical field

The present invention relates to a kind of equipment with container and device, described device has the centrifugation of arrangement in the above-described container Pump and for drive the centrifugal pump, be arranged in the motor of the top of the centrifugal pump, wherein the centrifugal pump have leaf Wheel and first shell part.

Background technology

Such equipment is more particularly to being configured to sewage lifting device.These sewage lifting devices, which will build up, chokes water refluence Water under plane without flowing backwards is discharged.They be used to convey be accumulated in the basement of residential building without excrement and containing excrement Sewage.Accumulated sewage is collected in a reservoir.Liquid level is usually detected by horizontal plane sensor.If reaching specific Limiting value is switched on centrifugal pump, which transfers out sewage from the container.

The container has receptacle for device.Include the centrifugal pump driven by motor device be immersed in it is described In sewage.The motor is stretched from the container.The impeller of the centrifugal pump is surrounded by housing component.

10 2,007 008 692 A1 of DE illustrate a kind of sewage lifting device with container, receive in the above-described container Collect sewage.Opening is provided on the upper side of the container, following apparatus is extend into the opening, and described device has band There is the centrifugal pump of motor.The centrifugal pump includes housing component, and impeller is arranged in the housing component.Housing component with impeller is stretched Enter into sewage.By aspirate pipe fitting come aspirate the sewage and by the centrifugal pump by the sewage from the container It transports out.The motor of described device is connected by axis with the impeller.

The device being made of with the motor being connected by axis the pump case with impeller forms a unit.The motor Part is stretched from the container.Described device is carried by flange ring or plate.In the flange ring or plate and the appearance Sealing device is arranged between device, the smell to both dislike without sewage or not squeezes out outward from the container.

A kind of sewage lifting device with container is illustrated in 199 13 530 A1 of DE, the container receipt is with nothing The interval of rule and the liquid for flowing to the container in different amounts.The equipment includes possessing the device of pump and actuator. It is pumped liquid from the container transport to grid by described.The pump case for possessing suction pipe fitting extend into the container In.The actuator of the pump is stretched from the container.

It is integrated into for the equipment of the self priming pump in container for possessing, air often accumulates in the pump.Therefore Ventilating mechanisms are needed, which is used to be discharged gas or air accumulation object and thus, it is possible to be started in the centrifugal pump Before necessary filling is carried out with pumped (conveying) medium.

For traditional sewage pump, such as by open there is the pipeline of corresponding big diameter to ensure to divulge information. Occurred leakage flow is endured herein or is led back to inlet chamber.If centrifugal pump is placed in the horizontal plane of suction side Top and its aspiration possess bottom valve, then, as long as the centrifugal pump is not to have suction capactity in itself, that will use hand By means of in pumping suction attachment filling funnel or by ventilation equipment the centrifugal pump is filled up.

Especially when starting for the first time or when the liquid level of the container is low, pump chamber may be used either partially or fully Air is filled.Must equipment starting before or period by the air gathered be discharged.

For traditional equipment according to the prior art, this is such as solved by drilling, and so disposes the brill Hole so that these drillings are either in the inside of the container or are connected with the container by hose or similar device It connects.

A kind of sewage lifting device is illustrated in 29 13 967 A1 of DE, in master for the sewage lifting device Drilling is arranged in room cover plate, the pipe fitting being connected with pump vent hose is connected in the drilling.The pump vent hose It is imported on the bend pipe in the pressure flange for being tightened into centrifugal pump.

A kind of sewage lifting device is illustrated in 29 13 970 A1 of DE, which has for storing The container of the sewage accumulated at random.The sewage lifting device includes pump, which is driven by vertical axis.Pump case Including ventilation device, the ventilation device has the protective device for preventing the blocking caused by the solid material by sewage.

For traditional sewage lifting device, the drilling for being aerated is constantly arranged in pressure piping. Here, particularly with the blocking for being likely to occur the ventilation hole for fibrous solids.

If ventilating mechanisms are arranged in the space after impeller, particularly with the impeller of the rib structure with the back side For can generate low pressure, thus draw air.

Invention content

The task of the present invention is illustrating a kind of equipment, though the equipment in conveying containing solid material, especially fibre-bearing Medium when also have reliable function and efficiency as high as possible.Here, the equipment should have as far as possible in operation Low noise emission.

The task is resolved according to the present invention by a kind of equipment of the feature with claim 1.Preferred modification Scheme can be by learning in dependent claims, the description and the appended drawings.

The equipment has the device for possessing centrifugal pump, and the centrifugal pump includes housing component, and the housing component is in impeller There are ventilating mechanisms in height and/or in the top of the impeller." height " this concept refers to relative to benchmark herein The vertical spacing of point.The various components of described device are arranged in the following order with increased height：For entering for medium Mouth, the impeller with first shell part, another housing component, motor.The impeller is driven by vertical axis, described vertical Axis is vertically oriented.

Ventilating mechanisms are integrated into the first shell part in the height of the impeller or in the top of the impeller On, this can realize the danger of the effective blocking divulged information and reduce the ventilating mechanisms at the same time of the centrifugal pump.

It was surprisingly found that the ventilating mechanisms in this position be arranged as block cleaning or elimination make tribute It offers and enduringly ensures the reliable ventilation of the pump in this way.Along the high flow velocity in radial direction at this It prevents from blocking in a region.

The ventilating mechanisms by the present invention are suitable for first with the cutting mechanism particularly for fibrous conveying object Lifting means.

The gap for being depressurized is preferably formed as between the impeller and the region of the first shell part.Thus Volume flow is reduced, this equally advantageous is avoided having an impact to the blocking in ventilating mechanisms.

It is preferred that the ventilating mechanisms include at least one opening.Here, the ventilating mechanisms also can be by the opening originally Body is constituted, and the air gathered in the pump can be escaped by the opening.

In a kind of particularly advantageous embodiment of the present invention, the ventilating mechanisms work along radial direction. Since ventilating mechanisms are introduced into shell along radial direction in the height of the impeller or in the top of the impeller Occurs the leakage stream being radially oriented in part.

Confirm particularly advantageously, the ventilating mechanisms arranged so that generated leakage stream be aligned pipeline parts, Wherein confirm that particularly advantageously, the leakage stream is directed at the pressure connection of the centrifugal pump.

For traditional equipment, often there is problems with：Leakage stream impacts on chamber wall.Because of the container It works as resonant cavity, so there is unwelcome noise emission.Since the ventilating mechanisms are directed at the pipe of the equipment Circuit component and limit or be unfolded leakage stream.

It is preferred that described device includes another housing component for the top for being arranged in the first shell part, wherein confirming advantageous It is that another housing component is configured to cap structure element.The cap structure element forms the opening for the container Cover board, the opening then form the receptacle for described device.The cover component can such as be configured to pressure cover.It is described Cover component carries described device and there are following regions, the region to be placed on the upper side of chamber wall above, So that a part for described device is extend into the container and a part for described device is arranged in the vessel port It top and is thus stretched above the receptacle.

The cover component can also act as bearing block.

The present invention a kind of particularly advantageous variant scheme in, described first and another housing component overlap each other.For this purpose, The first shell part can have following regions, the region to form the receptacle in the region for another housing component, Or a region of the opposite first shell part can be fitted in the receptacle of another housing component.

It is preferred that the first shell part is configured to shaped spiral housing, which at least partially surrounds the impeller. The shaped spiral housing can have impeller assembly parts as region（Laufradeinpass）.The impeller assembly parts formation connects Receive portion, the region in another region for being configured to pressure cover is fitted in the receptacle.This region of the pressure cover Also referred to as pressure cover assembly.In this variant scheme, impeller assembly parts and the pressure cover of the shaped spiral housing fill Accessory is overlapped.

In addition to the first shell part, the ventilating mechanisms can be arranged at least one other housing component.Such as Fruit two housing components overlapping, then confirm advantageously, introduce ventilation opening in two housing components, the ventilation opening so that This alignment so that leakage stream is flowed to from the interior room of the centrifugal pump in the container and by this by described two openings Mode ensures the ventilation of the centrifugal pump.

It is preferred that described device is configured to pump assembly, is in particular designed as centrifugal pump unit and formed completely to install Or the unit of dismounting.

It confirms advantageously, the motor is at least partially disposed at the outside of the container.In a kind of variant scheme, The motor is positioned in the outside of the container completely.

The impeller of the centrifugal pump is connected by vertical shaft device with the motor.In the impeller and described first Between the region of housing component, it is preferably formed as the gap for being depressurized and/or being reduced.

As the supplement of ventilating mechanisms described above, can be arranged between the pipeline parts and component of the equipment Gap for being aerated.Gap between the pipeline parts and the component is preferably configured as annular.It confirms herein special Not advantageously, the pipeline parts and the component have circular section or be configured to hollow cylindrical.By being used for The annulus outflow leakage stream being aerated, the leakage stream generate liquid layer.In this design structure, in pipeline member Sealing element is no longer needed between part and the component.

In a kind of particularly advantageous variant scheme, the pipeline parts and the component are arranged spaced apart to each other.For this purpose, Using from the pipeline parts to the transition region of the component, to annulus defined in generating.

It is preferred that the annulus and the component have axial and/or radial spacing relative to each other.Described Away from a kind of advantageous embodiment be less than 2mm, preferably smaller than 1mm, especially less than 0.5mm.It confirms particularly advantageously, The spacing is more than 0.01mm, preferably greater than 0.05mm, especially greater than 0.08mm.

It confirms particularly advantageously, the pipeline parts and/or the component have the uneven of the restriction gap Surface.For this purpose, such as gap can be introduced into the end face of the pipeline parts and/or component abutted each other.It is such Design structure ensures reliable ventilation, is likely to occur without capillarity or surface tension due to the medium described The reduction of the draught effect in gap.In a kind of variant scheme of the present invention, the annulus has together or multiple tracks lacks Mouthful.The notch by gap due to being introduced into the pipeline parts and/or the component being directly connected on the pipeline parts In and generate.

Description of the drawings

The other feature and advantage of the present invention from by means of attached drawing in being described made by a kind of embodiment and from attached It is obtained in figure itself.Herein：

Fig. 1 shows the perspective view of the container of the equipment；

Fig. 2 shows the side views of described device；

Fig. 3 shows the perspective view of described device seen from below；

Fig. 4 shows the sectional view of the equipment；

Fig. 5 shows the axial section of the centrifugal pump；

Fig. 6 shows the radial section along the line A-A item according to Fig. 5 of described device；

Fig. 7 shows the perspective view seen from above of another housing component；

Fig. 8 shows the perspective view of another housing component seen from below.

Specific implementation mode

Fig. 1 shows the container 1 of sewage lifting device.It is related to a kind of plastic containers in the described embodiment, which holds Device is designed to the operation of no pressure.The sewage of accumulation is intermediately stored in the container 1 and is subsequently conveyed to dirt In water channel.

The container 1 have constituted higher in terms of its structure height, band there are two inflow entrance 2 region and The region of lower composition in terms of structure height.In addition, the container 1 has emptying connector 3 and inspection hole 4, the inspection hole The lid being not shown in Fig. 1 is latched.

In Fig. 1 it can be seen that the part of sensor assembly 5 stretched out from the container 1, the sensor assembly exist The level measurement mechanism being detected to liquid level is configured in the embodiment.Than switch as used herein.

In addition, the container 1 has ventilation connector 6.It will be in the appearance by being arranged in the outflux on the container 1 Collected sewage transport goes out in device 1.

The lower part in terms of its structure height of the container 1 has the receiving for device 9 shown in figure 2 Portion 8.The receptacle 8 is configured to the circular opening on the upper side of the container 1 in the described embodiment.

Device 9 shown in figure 2 includes centrifugal pump 10, which has the first shell part for being configured to shaped spiral housing 11 and it is configured to another housing component 12 and motor 13 of pressure cover.

For the pipeline 15 of the collected medium discharge in the container 1 to be connected to pipeline parts 14.The pipe Circuit component 14 is configured to pressure connection.

Fig. 3 shows the perspective view of described device seen from below.Described device 9 possesses for by the group of the solid of medium At the cutting mechanism 16 of part chopping.The medium is flowed to by the opening 17 in housing component 18 in the centrifugal pump 10.It is described Housing component 18 is configured to impeller body.

There is another housing component 12 region 19, described device to be placed on chamber wall above with the region 19.

Fig. 4 shows the vertical section of the sewage lifting device.Area of the described device 9 to be formed by another housing component Domain 19 is placed on chamber wall above.Described device 9 is connected with immobilising device 20 with the container 1.The immobilising device 20 such as can be bolt.

The motor 13 is surrounded by motor shell 21.The motor 13 is the electro-motor for having stator and rotor.Institute It states motor 13 and drives the axis 22 supported by bearing arrangement 23.

The axis 22 is connected with impeller 24.

The medium flows to the impeller 24 by opening 17.The impeller 24 is configured to the first shell of shaped spiral housing Part 11 is surrounded.The first shell part 11 has region 25, which is configured to impeller assembly parts in the described embodiment.This Outside, the first shell part 11 has suction areas 26.The suction areas 26 is configured to hollow cylindrical and at least partly Ground surrounds the cutting mechanism 16.

The impeller 24 is configured to radial impeller and the medium is transported to pipeline by the pipeline parts of bending 14 In 15.

Fig. 5 is to amplify the vertical section for the part for showing the centrifugal pump 10.According to the present invention, the first shell Part 11 has ventilating mechanisms 27 in the top of the impeller 24.The ventilating mechanisms 27 are configured to opening in the described embodiment The arrangement being in alignment with each other, described be open are introduced in region 25 and the second shell part 12 of the first shell part In region 28.The region 28 is configured to pressure cover assembly.

Gas in the pump is escaped by the ventilating mechanisms 27 and passes through the first shell part 11 herein In the first opening and then by it is in another housing component 12 of the outside, be parallel to the of the first opening orientation Two openings flow in the container 1.

Fig. 6 shows the line A-A according to Fig. 5 of the section with ventilating mechanisms 27 along centrifugal pump 10 of described device The radial section of item.According to the present invention, the ventilating mechanisms 27 are directed at pipeline parts 14.Radially from the ventilating mechanisms 27 The leakage stream of middle outflow is unfolded and is braked by the pipeline parts 14, to significantly reduce noise emission.

Fig. 7 show, from aboves another housing component 12, which is configured to pressure cover in the described embodiment.Institute The component that another housing component 12 is integrated is stated, the component of the one is preferably made of the material of metal, especially casting.

Another housing component have hollow cylindrical possess larger diameter towards 13 open firstth area of the motor Second section 30 of the bearing block for being used as the bearing arrangement 23 for the axis 22 of section 29 and hollow cylindrical.By described another One housing component 12 forms the connector 31 for being connected with the pipeline parts 14 and the pipeline 15.

Another housing component 12 is shown from below in Fig. 8.Fig. 8 shows the opening of the ventilating mechanisms 27, described logical Arrangement that wind mechanism is configured to opening in the described embodiment, being in alignment with each other.The opening is introduced in described second In the region 28 of housing component 12.The region 28 is configured to pressure cover assembly.

Reference numerals list：

1 container

2 inflow entrances

3 emptying connectors

4 inspection holes

5 sensor assemblies

6 ventilation connectors

8 receptacles

9 devices

10 centrifugal pumps

11 first shell parts

12 another housing components

13 motors

14 pipeline parts

15 pipelines

16 cutting mechanisms

17 openings

18 housing components

19 regions

20 immobilising devices

21 motor shells

22 axis

23 bearing arrangements

24 impellers

25 regions

26 suction areas

27 ventilating mechanisms

28 regions

29 the first cylindrical sections

30 the second cylindrical sections

31 connectors.

Claims

1. having container（1）And device（9）Equipment, described device have is arranged in the container（1）In centrifugal pump（10） And it is arranged in the centrifugal pump（10）Top, for driving the centrifugal pump（10）Motor（13）, wherein it is described from Heart pump（18）With impeller（24）With first shell part（11）,

It is characterized in that,

The first shell part（11）In the impeller（24）Height on and/or the top of the impeller have at least One ventilating mechanisms（27）.

2. equipment as described in claim 1, which is characterized in that the ventilating mechanisms（27）With at least one opening.

3. equipment as described in claim 1 or 2, which is characterized in that the ventilating mechanisms（27）It is acted as along radial direction With.

4. by the equipment described in any one of Claim 1-3, which is characterized in that described device（9）With another housing component （12）, the housing component is arranged in the first shell part（11）Top.

5. equipment as described in claim 4, which is characterized in that another housing component（12）It is configured to cover component.

6. by the equipment described in claim 4 or 5, which is characterized in that remove the first shell part（11）Except the ventilation blower Structure（27）It is arranged at another housing component（12）In.

7. by the equipment described in any one of claim 4 to 6, which is characterized in that the first shell part（11）With at least One and another housing component（12）The region of overlapping（25）.

8. by the equipment described in any one of claim 1 to 7, which is characterized in that the ventilating mechanisms（27）It is directed at pipeline member Part（14）.

9. by the equipment described in any one of claim 1 to 8, which is characterized in that the motor（13）It arranges at least partly In the container（1）Outside.

10. by the equipment described in any one of claim 1 to 9, which is characterized in that the motor（13）It is fully disposed in described Container（1）Outside.

11. equipment as any one of claim 1 to 10, which is characterized in that the motor（13）Pass through vertical axis （22）With the centrifugal pump（10）Impeller（24）It is connected.

12. by the equipment described in any one of claim 1 to 11, which is characterized in that the container（1）With for the dress It sets（9）Receptacle（8）.

13. by the equipment described in any one of claim 1 to 12, which is characterized in that in the impeller（24）With described first Housing component（11）Region between form gap for being depressurized and/or being reduced.

14. by the equipment described in any one of claim 1 to 13, which is characterized in that the first shell part（11）At least portion Surround the impeller with dividing（24）.

15. by the equipment described in any one of claim 1 to 14, which is characterized in that the first shell part（11）It is configured to Shaped spiral housing.