CN202659574U - Fluid pump capable of being adjusted to be at optimum efficiency point - Google Patents
Fluid pump capable of being adjusted to be at optimum efficiency point Download PDFInfo
- Publication number
- CN202659574U CN202659574U CN 201220108183 CN201220108183U CN202659574U CN 202659574 U CN202659574 U CN 202659574U CN 201220108183 CN201220108183 CN 201220108183 CN 201220108183 U CN201220108183 U CN 201220108183U CN 202659574 U CN202659574 U CN 202659574U
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- CN
- China
- Prior art keywords
- fluid pump
- section
- adjusted
- efficiency point
- best efficiency
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a fluid pump capable of being adjusted to be at an optimum efficiency point. The fluid pump comprises a pump shell which comprises a main body and an upper cover which can be closed together or separated from each other. The outer wall of the main body is provided with an outlet connected to an output pipe. Meanwhile, the upper cover is provided with an inlet connected to an input pipe. The fluid pump also comprises a plurality of propellers fixed on a rotating shaft of the fluid pump by a clamp device and can be replaced at anytime, and a plurality of inner cavity gaskets with different thicknesses, which are matched with the propellers and pasted on the inner wall of the pump shell. The inlet pipe comprises connecting plates and an inlet passage, wherein the connecting plates are arranged at the two ends of the connecting pipe and connected with the fluid pump or the fan, the inlet passage is arranged between the two connecting plates, and the section of the middle section in the middle of the inlet passage is non-circular while the sections of the connection sections at the two ends of the inlet passage are round.
Description
Technical field
The utility model is about a kind of fluid pump that can be adjusted to best efficiency point.
Background technique
Traditional fluid pump is that the impeller of using rotation sucks fluid (for example water or other media), and the blade edge of fluid high-speed ground from impeller is ejected in one or more diffusion admittances.Fluid pump all is by different-diameter and the thickness of the design pump housing for the usage requirement of applicable various varying environments, is equipped with corresponding impeller, and the methods such as different rotating speeds of adjusting again impeller obtain different pump parameters.Wherein the most outstanding a bit is exactly the BEP(best efficiency point of fluid pump) numerical value, inconsistent as the BEP of the BEP of fluid pump and motor, or when not mating with system resistance, efficient will sharply descend.Because fluid pump mostly is main equipment, in case installation just is difficult to change.If at present in use the best efficiency point of running operating point and the fluid pump method of going mutually to be used for adjusting when far is the external diameter of use cutting impeller, make its working curve near high-efficiency point, but impeller just can't recover afterwards in cutting, just can't reach better using effect after further using.
Summary of the invention
The purpose of this utility model is to provide a kind of fluid pump that can be adjusted to best efficiency point, can make the large-scale fluid pump after the installation obtain best efficiency point under various operating conditionss.
Fluid pump in the utility model includes pump housing shell, supplying tube and output tube, described pump housing shell includes and can mutually cover and the main body of opening and loam cake, outer wall in described main body is provided with for the delivery outlet that connects output pipeline, be covered with for the inlet opening that connects supplying tube simultaneously, described fluid pump also includes and a plurality ofly can be fixed on impeller in the described fluid pump rotating shaft by securing means with changing at any time, and a plurality ofly can cooperate described impeller and be sticked at the inner chamber packing ring of a plurality of different-thickness of described pump housing outer casing inner wall; Described supplying tube includes and is located at two ends and be used for connects the land of fluid pump or fan and be located at input channel between two lands, and the cross section that described input channel is positioned at the intermediate section of intermediate portion is non-circular, and the cross section of linkage section that is positioned at two ends is rounded.
Described inner chamber packing ring is the bar shaped part that a cross section is rectangle.
The material of described inner chamber packing ring is metal or plastics.
Described securing means is screw rod.
Described non-circular cross section is rectangular or square.
The Elongation in described rectangular cross section is 4 to 3.
The length of described noncircular cross section and wide between arc transition, the radius of this circular arc is between 1 to 10 centimetre.
Arc transition between the linkage section at described intermediate section and two ends.
The utility model is by the impeller of a plurality of different sizes of outfit and the inner chamber packing ring of a plurality of different-thickness, and different impellers is being fixed in the rotating shaft of fluid pump under the different operating modes by securing means, and be equipped with suitable inner chamber packing ring, have advantages of for convenience detach and installation.And when the parameter that changes fluid pump makes it mate with running environment, need not any machining, only need to change detachable impeller and inner chamber packing ring, utilize the inner chamber packing ring to change the cavity volume of the pump housing shell of fluid pump thereby change operating mode.So, the fluid pump structure becomes cordwood, can be in the situation that minimum quantity of stores satisfies various requirement.
In addition, by the setting of supplying tube, can significantly eliminate and reduce the intensity that flowing medium forms vortex in the utility model, reduce the consumption of energy.Owing at the last section that is right after impeller the rounded linkage section in cross section being set, because the distance of this linkage section is short, again form not the distance of vortex in addition.
Description of drawings
Fig. 1 is the schematic perspective view of fluid pump in the utility model.
Fig. 2 is the schematic perspective view of the utility model middle pump body shell.
Fig. 3 to Fig. 5 is the schematic top plan view of the utility model middle pump body shell, at the inner chamber packing ring of different-thickness shown in this figure.
Fig. 6 is the enlarged diagram at position shown in the A among Fig. 5.
Fig. 7 is the schematic perspective view of supplying tube in the utility model.
Fig. 8 is along the cross-sectional schematic of B-B line among Fig. 7.
Fig. 9 is along the cross-sectional schematic of C-C line among Fig. 7.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the fluid pump 1 in the utility model includes pump housing shell, and pump housing shell includes main body 10 and loam cake 11, is removably connected by link between main body 10 and the loam cake 11 fixing, is provided with an inlet opening 12 at loam cake 11, is used for connecting supplying tube 2.Main body 10 within it section form an inner chamber 13, be provided with the delivery outlet 14 that is communicated with inner chamber at the sidewall of inner chamber, be used for connection output pipeline 3.Centre, bottom at inner chamber 13 is provided with for the fixing through hole 16 of screw rod, and the impeller that utilizes screw rod will be positioned at inner chamber 13 inside is connected with fluid pump 1 rotating shaft outward, and screw rod also can be connected and fixed by other securing meanss.
Such as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, fluid pump 1 in the utility model also includes the impeller (not shown) of a plurality of different-diameters, and the inner chamber packing ring 4 that is equipped with a plurality of different-thickness according to each impeller, each inner chamber packing ring 4 is the metal that a cross section is square, the bar shaped part that the materials such as plastics or other are made, one end of this bar shaped part is spherical in shape, the other end is one and makes things convenient for fluid pump 1 inner fluid medium to export the scarf of delivery outlet 14 to, as shown in Figure 6, in use, inner chamber packing ring 4 is sticked at the internal face of pump housing shell 10, and reserve the position of delivery outlet 14, because an end of bar shaped part is scarf, do not affect the output of pump housing shell 10 inner fluid media, utilize simultaneously bar shaped part 4 the other ends structure spherical in shape can further increase flowing medium from the amount of delivery outlet 14 outputs, increase the optimum efficiency of fluid pump 1.
Such as Fig. 7, Fig. 8 and shown in Figure 9, supplying tube 2 is L-type, be respectively equipped with the first land 20 and the second land 23 that is connected connecting external device for the inlet opening 12 that connects fluid pump 1 loam cake 11 at two ends, between the first land 20 and the second land 23, it is the connecting tube of L-type, two sections supplying tubes that this connecting tube is used for connection the first land 20 and the second land 23 are the rounded linkage section in cross section 21,24, middle connection two linkage sections 21 that are used for, 24 the intermediate section 22 that is square for the cross section, the cross section of intermediate section preferably is rectangle, and rectangular Elongation is 4 to 3, can certainly be other ratios, as shown in Figure 3 and Figure 4, the length in rectangular cross section and wide between arc transition, the radius of this circular arc is between 1 to 10 centimetre.
As shown in Figure 8, Length Ratio between supplying tube linkage section 24, intermediate section 22 and the linkage section 21 is 2 to 1 to 0.5, can certainly change to some extent, supplying tube 2 arranges the intermediate section 22 of one section relatively short rectangular cross-section in the position of the pump housing shell 10 interior impellers of close fluid pump 1, just can significantly eliminate and reduce the intensity that flowing medium forms vortex, reduce the consumption of energy.Owing at the last section linkage section 21 that is right after impeller the rounded connecting tube in cross section being set, because the distance of this linkage section 21 is short, again form not the distance of vortex in addition.Arc transition between intermediate section and linkage section.
Claims (1)
1. fluid pump that can be adjusted to best efficiency point, include pump housing shell, supplying tube and output tube, described pump housing shell includes and can mutually cover and the main body of opening and loam cake, outer wall in described main body is provided with for the delivery outlet that connects output pipeline, be covered with for the inlet opening that connects supplying tube simultaneously, it is characterized in that, described fluid pump also includes and a plurality ofly can be fixed on impeller in the described fluid pump rotating shaft by securing means with changing at any time, and a plurality ofly can cooperate described impeller and be sticked at the inner chamber packing ring of a plurality of different-thickness of described pump housing outer casing inner wall; Described supplying tube includes and is located at two ends and be used for connects the land of fluid pump or fan and be located at input channel between two lands, and the cross section that described input channel is positioned at the intermediate section of intermediate portion is non-circular, and the cross section of linkage section that is positioned at two ends is rounded.
2. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, described inner chamber packing ring is the bar shaped part that a cross section is rectangle.
3. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, the material of described inner chamber packing ring is metal or plastics.
4. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, described securing means is screw rod.
5. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, described non-circular cross section is rectangular or square.
6. the fluid pump that can be adjusted to best efficiency point according to claim 5 is characterized in that, the Elongation in described rectangular cross section is 4 to 3.
7. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, the length of described noncircular cross section and wide between arc transition, the radius of this circular arc is between 1 to 10 centimetre.
8. the fluid pump that can be adjusted to best efficiency point according to claim 1 is characterized in that, arc transition between the linkage section at described intermediate section and two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108183 CN202659574U (en) | 2012-03-20 | 2012-03-20 | Fluid pump capable of being adjusted to be at optimum efficiency point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220108183 CN202659574U (en) | 2012-03-20 | 2012-03-20 | Fluid pump capable of being adjusted to be at optimum efficiency point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659574U true CN202659574U (en) | 2013-01-09 |
Family
ID=47454483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220108183 Expired - Lifetime CN202659574U (en) | 2012-03-20 | 2012-03-20 | Fluid pump capable of being adjusted to be at optimum efficiency point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659574U (en) |
-
2012
- 2012-03-20 CN CN 201220108183 patent/CN202659574U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |