CN221003259U - Mixing pump diffuser blade for inhibiting gas-liquid separation - Google Patents
Mixing pump diffuser blade for inhibiting gas-liquid separation Download PDFInfo
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- CN221003259U CN221003259U CN202322888066.6U CN202322888066U CN221003259U CN 221003259 U CN221003259 U CN 221003259U CN 202322888066 U CN202322888066 U CN 202322888066U CN 221003259 U CN221003259 U CN 221003259U
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- blade
- holes
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- gas
- liquid separation
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- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 238000000926 separation method Methods 0.000 title claims abstract description 23
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 18
- 239000012071 phase Substances 0.000 abstract description 15
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000005514 two-phase flow Effects 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mixed transmission pump diffuser blade for inhibiting gas-liquid separation, which comprises a plurality of holes with equal diameter formed in the mixed transmission pump diffuser blade, and a plurality of blades are uniformly distributed on a rear cover plate in a spiral manner. According to the utility model, through the holes on the diffuser blades, the liquid phase of the pressure surface of the blades is combined with the gas phase of the suction surface again through the holes, and the gas-liquid two-phase flow is not easy to separate due to the existence of the holes. Under the working condition of high air content, the pressure inside the diffuser can be kept relatively uniform, the pressure pulsation amplitude is low, and the mixing pump still has high lift and efficiency.
Description
Technical Field
The utility model belongs to the technical field of mixed delivery pump diffuser blades, and relates to a mixed delivery pump diffuser blade for inhibiting gas-liquid separation.
Background
In order to improve the pressurizing capacity, the diffuser of the traditional mixing and conveying pump is longer in flow passage and larger in blade wrap angle. The gas phase is accumulated and detained in the flow channel, flow separation occurs, and the formed gas phase accumulation area can influence the pressure distribution in the flow channel, so that unstable flow phenomena such as surging and airlock of the mixing and conveying pump are caused. The research results show that: when the air content of the inlet of the mixing and conveying pump is increased, the air gathering area in the flow passage of the diffuser is increased, and the air gathering area is mainly gathered near the back cover plate of the diffuser on the suction surface of the blade and is approximately distributed at 1/3 to 1/2 of the blade inlet edge. Therefore, a method for inhibiting gas-liquid separation is researched according to the phenomenon that bubbles in a flow channel are gathered in a large quantity under the condition of high gas content, so that the mixed transportation pump still has higher supercharging capacity under the condition of high gas content.
Disclosure of utility model
The utility model aims to provide a diffuser blade of a mixing pump for inhibiting gas-liquid separation, which can effectively improve the phenomenon of gas phase aggregation in a diffuser flow passage under the working condition of high gas content.
The technical scheme adopted by the utility model is that the diffuser blade of the mixing pump for inhibiting gas-liquid separation comprises a rear cover plate, wherein a plurality of blades are uniformly distributed on the rear cover plate in a spiral shape, and holes are formed in the middle of each blade.
The utility model is also characterized in that:
Three holes are distributed on each blade.
Three holes on each blade are arranged side by side.
The relationship between the holes and the blades is shown in the following formula (1):
Wherein L is the length of the blade, L is the height of the opening position of the hole from the inlet edge of the blade, D is the diameter of the hole, H is the width of the blade, b is the distance between the centers of two holes, and c is the distance from the edge of the hole to the edge of the blade.
When three holes are arranged on the blade, the center of the width H is taken as the center of the first hole, and the diameter is set as long asIs formed by a plurality of holes. Taking the first hole as the center, taking b as the distance, opening the second hole to the left side and opening the third hole to the right side.
The utility model has the beneficial effect that the gas-liquid two-phase flow separation is inhibited by forming the holes on the blades. Under the working condition of high air content, the pressure inside the diffuser still keeps relatively uniform distribution, the pressure pulsation amplitude is low, the mixed pump obtains higher lift and efficiency, and the running stability of the mixed pump is improved. The blade structure provided by the utility model solves the problems of a large number of bubbles gathering and reduced supercharging capacity in the flow passage of the diffuser under the condition of high air content.
Drawings
FIG. 1 is a schematic view of the overall structure of a diffuser vane of a mixing pump for inhibiting gas-liquid separation in accordance with the present utility model;
FIG. 2 is a top view of a diffuser vane of a mixing pump of the present utility model inhibiting gas-liquid separation;
FIG. 3 is a schematic view of a mixing pump diffuser vane for inhibiting gas-liquid separation in accordance with the present utility model;
FIG. 4 is a schematic diagram of a design of a diffuser vane of a mixing pump for inhibiting gas-liquid separation in accordance with the present utility model.
In the figure, a rear cover plate, blades and holes are formed in the bottom of the front cover plate, the rear cover plate, the blades and the holes.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the detailed description.
Example 1
The utility model relates to a diffuser blade of a mixing pump for inhibiting gas-liquid separation, which is shown in fig. 1, and comprises a rear cover plate 1, wherein a plurality of blades 2 are uniformly distributed on the rear cover plate 1 in a spiral shape, holes 3 with equal diameters are distributed in the middle of each blade 2 in a arrayed manner, and the number of the blades 2 is 7 as shown in fig. 2.
Example 2
Based on the embodiment 1, as shown in fig. 3, the length from the inlet side to the outlet side of the blade 2 is L (unit, mm), that is, the length of the blade 2 is L, the length of the center position of the opening center of the hole 3 on the blade 2 from the inlet side of the blade 2 is L (unit, mm) (that is, L is the length of the opening position from the inlet side of the blade 2), the width of the blade 2 is H (unit, mm), and the sizes and positions of the blade 2 and the hole 3 are shown in the formula:
Wherein D is the diameter (unit, mm) of the hole 3, b is the distance (unit, mm) between the centers of two holes 3, and c is the distance (unit, mm) from the edge of the hole 3 to the edge of the blade 2.
Example 3
On the basis of example 2, as shown in FIG. 4, the center of the width H is taken as the center of the first hole 3 at a position long from the inlet side l, the diameter is made longIs provided with holes 3. Then respectively left and right to be distant from the center of the first hole/>The place of (2) is used as the center of a circle, and the diameter is increased/>Is provided, the other two holes 3 of (a). According to the actual blade length and width, the size and position of the hole expressed by the combination formula can obtain the diffuser blade structures with different sizes.
According to the diffuser blade of the mixing and conveying pump for inhibiting gas-liquid separation, under the working condition of high gas content, liquid phase on the pressure surface of the diffuser blade passes through the holes and is remixed with gas phase accumulated on the suction surface under the action of pressure difference.
The working principle of the diffuser blade of the mixing pump for inhibiting gas-liquid separation is as follows;
Under the working condition of gas-liquid two phases, the gas-liquid two phases are separated when the mixed flow flows into the diffuser from the pump due to the difference of acting forces caused by the physical property difference of the two phases in the pump. The liquid phase in the diffuser is easy to collect on the pressure surface of the blade, and the gas phase is collected on the suction surface of the blade close to the rear cover plate. In addition, the diffuser flow passage is long and narrow, and gas phase is easy to gather at the 1/3 to 1/2 of the blade length of the inlet edge of the blade. By forming the holes 3 at the gas phase gathering positions of the blades 2, the liquid phase on the pressure surface (suction surface) passes through the holes 3 and is mixed with the gas phase again under the action of pressure difference, so that gas-liquid separation is inhibited. In addition, the holes 3 can scatter gas phase aggregation in the flow channel, so that the gas phase is uniformly distributed, the relative gas content is reduced, and the overflow capacity of the diffuser is improved. Under the working condition of high air content, the pressure inside the diffuser is kept to be relatively uniform, the pressure pulsation amplitude is low, and the mixing pump still has high lift and efficiency.
According to the diffuser blade of the mixing transmission pump for inhibiting gas-liquid separation, through the holes on the diffuser blade, the liquid phase of the pressure surface of the blade is combined with the gas phase of the suction surface again through the holes, and the gas-liquid two-phase flow is not easy to separate due to the existence of the holes. Under the working condition of high air content, the pressure inside the diffuser can be kept relatively uniform, the pressure pulsation amplitude is low, and the mixing pump still has high lift and efficiency.
Claims (5)
1. The utility model provides a inhibit gas-liquid separation's mixed delivery pump diffuser blade which characterized in that: comprises a back cover plate (1), a plurality of blades (2) are uniformly distributed on the back cover plate (1) in a spiral shape, and holes (3) are formed in the middle of each blade (2).
2. The mixing pump diffuser vane for inhibiting gas-liquid separation according to claim 1, wherein: three holes (3) are distributed on each blade (2).
3. The mixing pump diffuser vane for inhibiting gas-liquid separation according to claim 2, wherein: three holes (3) on each blade (2) are arranged side by side.
4. The mixing pump diffuser vane for inhibiting gas-liquid separation according to claim 2, wherein: the relation between the hole (3) and the blade (2) is shown in the following formula (1):
Wherein L is the length of the blade (2), L is the height of the opening position of the hole (3) from the inlet edge of the blade (2), D is the diameter of the hole (3), H is the width of the blade (2), b is the distance between the circle centers of the two holes (3), and c is the distance from the edge of the hole (3) to the edge of the blade (2).
5. The gas-liquid separation suppressing mixing pump diffuser vane of claim 4, wherein: when the three holes (3) are arranged on the blade (2), the center of the width H is taken as the center of the first hole (3), and the diameter length is set upThe hole (3) of the die is provided with a second hole (3) at the left side and a third hole (3) at the right side by taking the first hole (3) as the center and taking b as the distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888066.6U CN221003259U (en) | 2023-10-27 | 2023-10-27 | Mixing pump diffuser blade for inhibiting gas-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322888066.6U CN221003259U (en) | 2023-10-27 | 2023-10-27 | Mixing pump diffuser blade for inhibiting gas-liquid separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003259U true CN221003259U (en) | 2024-05-24 |
Family
ID=91089311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322888066.6U Active CN221003259U (en) | 2023-10-27 | 2023-10-27 | Mixing pump diffuser blade for inhibiting gas-liquid separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003259U (en) |
-
2023
- 2023-10-27 CN CN202322888066.6U patent/CN221003259U/en active Active
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