CN105545756A - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
- Publication number
- CN105545756A CN105545756A CN201510963132.9A CN201510963132A CN105545756A CN 105545756 A CN105545756 A CN 105545756A CN 201510963132 A CN201510963132 A CN 201510963132A CN 105545756 A CN105545756 A CN 105545756A
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- China
- Prior art keywords
- heating
- pump
- heating module
- centrifugal pump
- pump case
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
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- 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
- F04D29/2238—Special flow patterns
- F04D29/225—Channel wheels, e.g. one blade or one flow channel
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- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a centrifugal pump which comprises a pump housing, a heating component, a semi-open impeller and a driving device, wherein the heating component is mounted on the pump housing; a heating pump cavity is defined by the heating component and the pump housing jointly; an inlet communicated with the heating pump cavity is formed in the heating component; an outlet communicated with the heating pump cavity is formed in the pump housing; the semi-open impeller is rotationally arranged in the heating pump cavity; when the semi-open impeller rotates, the semi-open impeller guides a fluid entering from the inlet to be outwards spirally diffused to the outlet along the radial direction of the heating component, and the fluid rushes to the heating component in the spiral diffusing process under the action of the semi-open impeller; and the driving device is mounted on the pump housing and is connected with the semi-open impeller in a transmission manner. The centrifugal pump has the advantages of high space utilization ratio, good hydraulic performance, simple structure, low cost, good heating performance, etc.
Description
Technical field
The present invention relates to pumping technology field, in particular to a kind of centrifugal pump.
Background technique
In correlation technique, for heating by convection cell, again heated fluid is carried out to the situation of pumping, usually arrange a heating equipment and a pumping installations, the complex structure of equipment, bulky, space availability ratio is low.
For this reason, occur imbedding all or part of for heating equipment in pump case with the equipment making heating equipment and pumping installations combine, in order to eliminate the impact of heater on pump casing shapes, diversion disk is adopted to carry out water conservancy diversion, but the complex structure of diversion disk, add the cost of equipment, and heating properties still has much room for improvement.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem existed in correlation technique.For this reason, the present invention proposes a kind of centrifugal pump, and this centrifugal pump has that space availability ratio is high, hydraulic performance good, structure is simple, cost is low and the advantage such as heating properties is good.
For achieving the above object, propose a kind of centrifugal pump according to embodiments of the invention, described centrifugal pump comprises: pump case; Heating module, described heating module to be arranged on described pump case and jointly to limit heating pump chamber with described pump case, and described heating module is provided with the entrance that is communicated with described heating pump chamber and described pump case is provided with the outlet be communicated with described heating pump chamber; Half-opened impeller, described half-opened impeller is rotatably located in described heating pump chamber, guides the fluid that entered by described entrance diffuse to described outlet along the radially outward spiral of described heating module and under the effect of described half-opened impeller, pour into described heating module in the process that spreads at spiral of described fluid when described half-opened impeller rotates; Drive unit, described drive unit to be arranged on described pump case and to be in transmission connection with described half-opened impeller.
Have that space availability ratio is high, hydraulic performance good, structure is simple, cost is low according to the centrifugal pump of the embodiment of the present invention and the advantage such as heating properties is good.
In addition, according to the centrifugal pump of the embodiment of the present invention, also there is following additional technical characteristics:
According to one embodiment of present invention, described half-opened impeller comprises: wheel plate, and described wheel plate and described drive unit are in transmission connection; Multiple spiral stator, multiple described spiral stator be located at described wheel plate on the surface of described heating module and from the center of described wheel plate to the edge spiral extension of described wheel plate.
According to one embodiment of present invention, the center on the surface towards described heating module of described wheel plate is provided with the diversion column guiding the fluid that entered by described entrance to multiple described spiral stator, and described diversion column and described drive unit are in transmission connection.
According to one embodiment of present invention, described diversion column is taper shape, frustoconical or segment-shaped.
According to one embodiment of present invention, one end of the described diversion column of vicinity of each described spiral stator all has the tilting section be connected with the outer circumferential face of described diversion column, and the surface towards described heating module of described tilting section is towards described diversion column and towards the direction inclination extension away from described heating module.
According to one embodiment of present invention, described wheel plate is configured with to away from the direction depression of described heating module and the annular recess extended along the circumference of described wheel plate.
According to one embodiment of present invention, described pump case is cylindrical or scroll casing shape.
According to one embodiment of present invention, described pump case comprises: upper shell, and described heating module to be removably mounted on described upper shell and jointly to limit described heating pump chamber with described upper shell, and described outlet is located on described upper shell; Lower shell body, described lower shell body is removably mounted on described upper shell, and described drive unit is arranged in described lower shell body.
According to one embodiment of present invention, described heating module comprises: outer cover, and described outer cover is arranged on described pump case, and described entrance is located on described outer cover; Heating plate, described heating plate to be arranged on described outer cover and jointly to limit described heating chamber with described pump case, and described entrance dodged out by described heating plate.
According to one embodiment of present invention, described outer cover is provided with the inlet duct be communicated with described entrance.
According to one embodiment of present invention, described heating plate is the ring heating plate with central through bore, and described central through bore is corresponding with described entry position.
According to one embodiment of present invention, the inner edge of described heating plate and periphery are along sealing respectively and between described outer cover.
According to one embodiment of present invention, the inner edge of described heating plate and periphery are along being sealed by seal ring respectively and between described outer cover.
According to one embodiment of present invention, the inner edge of described heating plate and/or periphery along and corresponding described seal ring between be provided with thermal insulation barriers.
According to one embodiment of present invention, at least one in the outer circumferential face of described heating plate and the surface of described half-opened impeller is dorsad provided with resistance coating.
According to one embodiment of present invention, the central axis of the central axis of described entrance, the central axis of described pump case, the central axis of described heating module, the central axis of described half-opened impeller and described drive unit overlaps, on the periphery wall that described outlet is located at described pump case and the periphery wall of central axis and described pump case is tangent.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the centrifugal pump according to the embodiment of the present invention;
Fig. 2 is the sectional view of the centrifugal pump according to the embodiment of the present invention;
Fig. 3 is the partial exploded view of the centrifugal pump according to the embodiment of the present invention;
Fig. 4 is the testing property figure adopting half-opened impeller and centrifugal pump without diversion disk;
Fig. 5 is the testing property figure adopting half-opened impeller and have the centrifugal pump of diversion disk;
Fig. 6 is the temperature simulation figure of the centrifugal pump adopting double shrouded wheel;
Fig. 7 is the temperature simulation figure of the centrifugal pump adopting half-opened impeller.
Reference character:
Centrifugal pump 1,
Pump case 100, upper shell 110, heating pump chamber 111, outlet 112, lower shell body 120,
Heating module 200, outer cover 210, inlet duct 211, entrance 212, heating plate 220,
Half-opened impeller 300, wheel plate 310, spiral stator 320, diversion column 330, tilting section 340,
Drive unit 400, stator 410, rotor 420.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1-Fig. 3, the centrifugal pump 1 according to the embodiment of the present invention is described, centrifugal pump 1 is integrated with heating and pump function, be applicable to the household electric appliance such as such as dishwasher, have that space availability ratio is high, hydraulic performance good, structure is simple, cost is low and the advantage such as heating properties is good.
As shown in Figure 1-Figure 3, pump case 100, heating module 200, half-opened impeller 300 and drive unit 400 is comprised according to the centrifugal pump 1 of the embodiment of the present invention.
Heating module 200 is arranged on pump case 100, and heating module 200 and pump case 100 jointly limit and heat pump chamber 111, and heating module 200 is provided with and heats entrance 212 that pump chamber 111 is communicated with and pump case 100 is provided with and the outlet 112 of heating pump chamber 111 and being communicated with.Such as, the lower surface of heating module 200 is formed as the roof heating pump chamber 111, and the fluid so in heating pump chamber 111 can be heated by heating module 200.Half-opened impeller 300 is rotatably located at and heats in pump chamber 111 and contiguous heating module 200.When half-opened impeller 300 rotates, guide the fluid that entered by entrance 212 to diffuse to outlet 112 along the radially outward spiral of heating module 200, and under the effect of half-opened impeller 300, pour into heating module 200 in the process that spreads at spiral of described fluid.Drive unit 400 to be arranged on pump case 100 and to be in transmission connection with half-opened impeller 300, and drive unit 400 drives half-opened impeller 300 to rotate.
Below with reference to the accompanying drawings the heating pumping procedure of the centrifugal pump 1 according to the embodiment of the present invention is described.
Fluid enters heating pump chamber 111 by entrance 212 and drive unit 400 drives half-opened impeller 300 to rotate, now fluid be flowing in the drive of half-opened impeller 300 under present along heating module 200 radial direction from inside to outside spiral diffusion, little and the fluid of curve resistance of fluid flowing can flow through the lower surface of heating module 200 and fully contact with heating module 200, increase the heating area of fluid, in addition, half-opened impeller 300 is semi-open type structure, the lower surface of carry fluid IMPULSIVE HEATING assembly 200 is simultaneously understood in the process rotated, thus improve heating effect further.Finally, flowed out by outlet 112 under the influence of centrifugal force by the fluid heated.
Here be in prior art, adopt the centrifugal pump of double shrouded wheel with requiring emphasis, fluid during vane rotary, only can be guided to external diffusion, and can not carry fluid IMPULSIVE HEATING device.
According to the centrifugal pump 1 of the embodiment of the present invention, heat pump chamber 111 by being assembled to by heating module 200 jointly to limit on pump case 100 and with pump case 100, thus be integrated with heating and pump function, and the compact structure of centrifugal pump 1, volume is little, improves the space availability ratio of centrifugal pump 1.
And, half-opened impeller 300 is adopted to carry out water conservancy diversion, eliminate diversion disk of the prior art, fluid spiral can be made to spread and pour into heating module 200 on the one hand, ensure that fluid fully contacts with heating module 200, and then improve heating effect, on the other hand owing to eliminating diversion disk, structure is more simple, and cost is lower.That is, according to the centrifugal pump 1 of the embodiment of the present invention when saving existing diversion disk, more excellent heating effect can be reached.
In addition, half-opened impeller 300 is adopted to carry out water conservancy diversion, heating module 200 is made not affect the profile design of pump case 100, pump case 100 can be designed to spiral-shaped, such as, pump case 100 can be cylindrical or scroll casing shape, coordinate the spiral diversion that bend loss is less, thus the hydraulic performance of centrifugal pump 1 is good.
Fig. 4-Fig. 7 shows claimant's contrast according to the laboratory data of the centrifugal pump 1 of the embodiment of the present invention centrifugal pump performance different from prior art, wherein, Fig. 4 is the testing property figure adopting half-opened impeller and centrifugal pump without diversion disk, Fig. 5 is the testing property figure adopting half-opened impeller and have the centrifugal pump of diversion disk, Fig. 6 is the temperature simulation figure of the centrifugal pump of employing double shrouded wheel, Fig. 7 is the temperature simulation figure of the centrifugal pump adopting half-opened impeller.Known by contrasting every real data, the heating properties according to the employing half-opened impeller of the embodiment of the present invention and without the centrifugal pump 1 of diversion disk is optimum.
Therefore, according to the centrifugal pump 1 of the embodiment of the present invention, possess heating and pump function, and adopt half-opened impeller and the structure without diversion disk, the advantage such as have that space availability ratio is high, hydraulic performance good, structure is simple, cost is low and heating properties is good.
Below with reference to the accompanying drawings centrifugal pump 1 according to the specific embodiment of the invention is described.As shown in Figure 1-Figure 3, pump case 100, heating module 200, half-opened impeller 300 and drive unit 400 is comprised according to the centrifugal pump 1 of the embodiment of the present invention.
Particularly, as depicted in figs. 1 and 2, the central axis of pump case 100 is directed along the vertical direction, and heating module 200 is arranged on the upper end of pump case 100 and drive unit 400 is positioned at the bottom of pump case 100, and half-opened impeller 300 is positioned at the below of heating module 200.The central axis of the central axis of entrance 212, the central axis of pump case 100, the central axis of heating module 200, the central axis of half-opened impeller 300 and drive unit 400 overlaps, on the periphery wall that outlet 112 is located at pump case 100 and the central axis of outlet 112 and the periphery wall of pump case 100 tangent.Thereby simplify the structure of centrifugal pump 1, and reduce volume, and the hydraulic performance of centrifugal pump 1 is good.
Fig. 2 and Fig. 3 shows the centrifugal pump 1 according to specific embodiments more of the present invention.As shown in Figures 2 and 3, half-opened impeller 300 comprises wheel plate 310 and multiple spiral stator 320.Wheel plate 310 is circular plate and is in transmission connection with drive unit 400.Multiple spiral stator 320 be located at wheel plate 310 towards on the surface of heating module 200, namely multiple spiral stator 320 is located on the upper surface of wheel plate 310, and multiple spiral stator 320 is from the center of wheel plate 310 to the edge spiral extension of wheel plate 310, wherein the Hand of spiral of multiple spiral stator 320 is consistent with the sense of rotation of wheel plate 310.Semi-open type structure can be formed thus, drive unit 400 drives wheel plate 310 to rotate, wheel plate 310 drives the multiple spiral stators 320 on it to rotate when rotating, wheel plate 310 and multiple spiral stator 320 guide the fluid that entered by entrance 212 along the radial direction spiral diffusion from the inside to the outside of the lower surface of heating module 200 jointly, and, wheel plate 310 is only one and is positioned at below multiple spiral stator 320, without other wheel plates above multiple spiral stator 320, form semi-open type structure thus, also can pour into the lower surface of heating module 200 under the effect of half-opened impeller 300 in the process of fluid outside screw, thus heat exchange abundant with the lower surface of heating module 200, improve heat transfer effect.
Further, as shown in Figures 2 and 3, the center on the surface towards heating module 200 (i.e. the upper surface of wheel plate 310) of wheel plate 310 is provided with diversion column 330, diversion column 330 can be taper shape, frustoconical or segment-shaped, position is corresponding in the vertical direction for diversion column 330 and entrance 212, diversion column 330 can guide the fluid entered by entrance 212 to multiple spiral stator 320, and diversion column 330 and drive unit 400 are in transmission connection.Thus, half-opened impeller 300 and drive unit 400 can be facilitated on the one hand to be in transmission connection, and fluid is fallen after on diversion column 330 and can be disperseed to the surrounding of diversion column 330 on the other hand, thus enters multiple spiral stator 320 fast.
Alternatively, as shown in Figure 3, one end of the contiguous diversion column 330 of each spiral stator 320 all has the tilting section 340 be connected with the outer circumferential face of diversion column 330, and the surface towards heating module 200 of tilting section 340 is towards diversion column 330 and towards the direction inclination extension away from heating module 200.In other words, each spiral stator 320 all has the tilting section 340 be connected with the outer circumferential face of diversion column 330, the upper surface of tilting section 340 is the plane of inclination tilted relative to horizontal aspect, and one end of the contiguous diversion column 330 of this plane of inclination is lower than the other end of this plane of inclination.Such fluid is fallen after diversion column 330 from entrance 212, guide and evenly can enter multiple spiral stator 320, and water resistance is little through diversion column 330.
Advantageously, as shown in Figure 2, wheel plate 310 plate is configured with to away from the direction depression of heating module 200 and the annular recess extended along the circumference of wheel plate 310.That is, wheel plate 310 is configured with a ring shape and to the recess of lower recess, the central axis of this recess and the central axes of wheel plate 310 and arrange around diversion column 330.When wheel plate 310 rotates, further fluid can be pushed to the outer periphery place of the lower surface of heating module 200, thus improve the heat transfer effect of fluid and heating module 200 further.
Fig. 1-Fig. 3 shows the centrifugal pump 1 according to some concrete examples of the present invention.As shown in Figure 1-Figure 3, the conveniently dismounting of centrifugal pump 1, pump case 100 comprises upper shell 110 and lower shell body 120.Heating module 200 is removably mounted on the upper end of upper shell 110, and heating module 200 and upper shell 110 jointly limit and heat pump chamber 111, export 112 and are located on the sidewall of upper shell 110.Lower shell body 120 is removably mounted on the lower end of upper shell 110, and drive unit 400 is arranged in lower shell body 120.
Particularly, drive unit 400 is motor, comprise stator 410 and rotor 420, rotor 420 is rotatably located in stator 410 and rotor 420 has rotor shaft, stator 410 and rotor 420 are arranged in lower shell body 120 and the rotor shaft of rotor 420 extends upwardly into heating pump chamber 111 is connected with the diversion column 330 of half-opened impeller 300, the lower end surface of diversion column 330 can be provided with the rotor shaft pilot hole of through wheel plate 310, and the rotor shaft of rotor 420 can be engaged in this rotor shaft hatch and circumferential orientation.
Fig. 1-Fig. 3 shows the centrifugal pump 1 according to particular embodiments of the invention.As shown in Figure 1-Figure 3, heating module 200 comprises outer cover 210 and heating plate 220.Outer cover 210 is arranged on the upper end of upper shell 110, and entrance 212 is located on outer cover 210.Heating plate 220 is arranged on jointly to limit on outer cover 210 and with upper shell 110 and heats pump chamber 111, and entrance 212 dodged out by heating plate 220.Thus, heating plate 220 neighboring entry 212 is arranged, and the lower surface of heating plate 220 forms the roof face of heating pump chamber 111.
Advantageously, as shown in Figure 1-Figure 3, conveniently centrifugal pump 1 is connected with outside pipeline, and outer cover 210 is provided with the inlet duct 211 be communicated with entrance 212, and the sidewall of upper shell 110 is provided with and exports 112 outer pipes be communicated with.
Specifically, heating plate 220 is for having the ring heating plate of central through bore, and described central through bore is corresponding with entrance 212 position.The inner edge of heating plate 220 and the periphery of heating plate 220 are along sealing respectively and between outer cover 210.Such as, the inner edge of heating plate 220 and the periphery of heating plate 220 are along being sealed by seal ring (not shown) respectively and between outer cover 210.
Further, the inner edge of heating plate 220 and/or heating plate 220 periphery along and corresponding described seal ring between be provided with thermal insulation barriers (not shown).Thermal insulation barriers can be welded on the inner edge of heating plate 220 and/or periphery along upper, and can weld with outer cover 210, thermal insulation barriers can be utilized so heat insulation, reduce the temperature of heating plate 220 to the impact of seal ring.
Alternatively, at least one in the outer circumferential face of heating plate 220 and the surface of half-opened impeller 300 is dorsad provided with resistance coating.In other words, heating plate 220 be not provided with resistance coating on the surface with at least one in multiple surfaces of fluid contact.Such as, the upper surface of heating plate 220 applies resistance coating, heat be delivered to heating plate 220 lower surface and to heating pump chamber 111 in fluid heating.Certainly, the upper surface of heating plate 220 and outer circumferential face all can apply resistance coating.Preferably, resistance coating can be thick-film resistor.
According to the centrifugal pump 1 of the embodiment of the present invention, be integrated with heating and pump function, eliminate diversion disk of the prior art, contiguous for half-opened impeller 300 heating module 200 is arranged to utilize half-opened impeller 300 to carry out water conservancy diversion, structure is more simple, cost is lower, and structure when half-opened impeller 300 is half-open, fluid spiral can not only be guided during rotation to spread, and heating module 200 can be poured into by propelling fluid, significantly improve the heat-exchange performance of centrifugal pump 1.In brief, according to the centrifugal pump 1 of the embodiment of the present invention, the heat-exchange performance more excellent than the centrifugal pump with diversion disk can be realized when saving diversion disk.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (16)
1. a centrifugal pump, is characterized in that, comprising:
Pump case;
Heating module, described heating module to be arranged on described pump case and jointly to limit heating pump chamber with described pump case, and described heating module is provided with the entrance that is communicated with described heating pump chamber and described pump case is provided with the outlet be communicated with described heating pump chamber;
Half-opened impeller, described half-opened impeller is rotatably located in described heating pump chamber, guides the fluid that entered by described entrance diffuse to described outlet along the radially outward spiral of described heating module and under the effect of described half-opened impeller, pour into described heating module in the process that spreads at spiral of described fluid when described half-opened impeller rotates;
Drive unit, described drive unit to be arranged on described pump case and to be in transmission connection with described half-opened impeller.
2. centrifugal pump according to claim 1, is characterized in that, described half-opened impeller comprises:
Wheel plate, described wheel plate and described drive unit are in transmission connection;
Multiple spiral stator, multiple described spiral stator be located at described wheel plate on the surface of described heating module and from the center of described wheel plate to the edge spiral extension of described wheel plate.
3. centrifugal pump according to claim 2, it is characterized in that, the center on the surface towards described heating module of described wheel plate is provided with the diversion column guiding the fluid that entered by described entrance to multiple described spiral stator, and described diversion column and described drive unit are in transmission connection.
4. centrifugal pump according to claim 3, is characterized in that, described diversion column is taper shape, frustoconical or segment-shaped.
5. centrifugal pump according to claim 3, it is characterized in that, one end of the described diversion column of vicinity of each described spiral stator all has the tilting section be connected with the outer circumferential face of described diversion column, and the surface towards described heating module of described tilting section is towards described diversion column and towards the direction inclination extension away from described heating module.
6. centrifugal pump according to claim 2, is characterized in that, described wheel plate is configured with to away from the direction depression of described heating module and the annular recess extended along the circumference of described wheel plate.
7. the centrifugal pump according to any one of claim 1-6, is characterized in that, described pump case is cylindrical or scroll casing shape.
8. the centrifugal pump according to any one of claim 1-7, is characterized in that, described pump case comprises:
Upper shell, described heating module to be removably mounted on described upper shell and jointly to limit described heating pump chamber with described upper shell, and described outlet is located on described upper shell;
Lower shell body, described lower shell body is removably mounted on described upper shell, and described drive unit is arranged in described lower shell body.
9. the centrifugal pump according to any one of claim 1-8, is characterized in that, described heating module comprises:
Outer cover, described outer cover is arranged on described pump case, and described entrance is located on described outer cover;
Heating plate, described heating plate to be arranged on described outer cover and jointly to limit described heating chamber with described pump case, and described entrance dodged out by described heating plate.
10. centrifugal pump according to claim 9, is characterized in that, described outer cover is provided with the inlet duct be communicated with described entrance.
11. centrifugal pumps according to claim 9, is characterized in that, described heating plate is the ring heating plate with central through bore, and described central through bore is corresponding with described entry position.
12. centrifugal pumps according to claim 11, is characterized in that, the inner edge of described heating plate and periphery are along sealing respectively and between described outer cover.
13. centrifugal pumps according to claim 12, is characterized in that, the inner edge of described heating plate and periphery are along being sealed by seal ring respectively and between described outer cover.
14. centrifugal pumps according to claim 13, is characterized in that, the inner edge of described heating plate and/or periphery along and corresponding described seal ring between be provided with thermal insulation barriers.
15. centrifugal pumps according to claim 9, is characterized in that, at least one in the surface of the outer circumferential face of described heating plate and dorsad described half-opened impeller is provided with resistance coating.
16. centrifugal pumps according to any one of claim 1-15, it is characterized in that, the central axis of the central axis of described entrance, the central axis of described pump case, the central axis of described heating module, the central axis of described half-opened impeller and described drive unit overlaps, on the periphery wall that described outlet is located at described pump case and the periphery wall of central axis and described pump case is tangent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510963132.9A CN105545756A (en) | 2015-12-17 | 2015-12-17 | Centrifugal pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510963132.9A CN105545756A (en) | 2015-12-17 | 2015-12-17 | Centrifugal pump |
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| CN105545756A true CN105545756A (en) | 2016-05-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194837A (en) * | 2016-07-13 | 2016-12-07 | 佛山市威灵洗涤电机制造有限公司 | The pump case of centrifugal pump, centrifugal pump and dish-washing machine |
| CN106382251A (en) * | 2016-11-23 | 2017-02-08 | 广东威灵电机制造有限公司 | Centrifugal pump and impeller for centrifugal pump |
| WO2017101086A1 (en) * | 2015-12-17 | 2017-06-22 | 广东威灵电机制造有限公司 | Centrifugal pump |
| CN107148092A (en) * | 2017-06-28 | 2017-09-08 | 广东威灵电机制造有限公司 | Heater |
| CN107355393A (en) * | 2017-09-01 | 2017-11-17 | 尹刚 | A kind of blower fan |
| CN108533529A (en) * | 2017-03-06 | 2018-09-14 | 三花亚威科电器设备（芜湖）有限公司 | Integrated heating pumps |
| WO2018218921A1 (en) * | 2017-06-01 | 2018-12-06 | 盐城市锦瑞石油机械有限公司 | Heating-type petroleum pump |
| CN110360156A (en) * | 2019-08-10 | 2019-10-22 | 殷章标 | A kind of use in dishwasher water pump |
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| CN102748329A (en) * | 2011-04-15 | 2012-10-24 | 德昌电机(深圳)有限公司 | Heat pump |
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| CN110360156A (en) * | 2019-08-10 | 2019-10-22 | 殷章标 | A kind of use in dishwasher water pump |
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