CN214465122U - Top plate grid vortex eliminating structure of bidirectional flow passage pump device - Google Patents
Top plate grid vortex eliminating structure of bidirectional flow passage pump device Download PDFInfo
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- CN214465122U CN214465122U CN202120188835.XU CN202120188835U CN214465122U CN 214465122 U CN214465122 U CN 214465122U CN 202120188835 U CN202120188835 U CN 202120188835U CN 214465122 U CN214465122 U CN 214465122U
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 160
- 230000008030 elimination Effects 0.000 claims abstract description 75
- 238000003379 elimination reaction Methods 0.000 claims abstract description 75
- 108091006146 Channels Proteins 0.000 description 53
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000002085 persistent effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Abstract
The utility model relates to a roof grid vortex-eliminating structure of a bidirectional flow passage pump device, which comprises a water inlet flow passage and a water outlet flow passage, wherein the top of the water inlet flow passage is provided with a water inlet flow passage roof, and the water outlet flow passage is arranged on the upper part of the water inlet flow passage; a horn tube is arranged between the water inlet flow passage and the water outlet flow passage, the water inlet flow passage and the water outlet flow passage are communicated through the horn tube, the upper end of the horn tube extends into the water outlet flow passage, and the lower end of the horn tube extends into the water inlet flow passage; an impeller is arranged in the horn tube; a plurality of first top plate vortex elimination grid bars are arranged in the length direction of the top plate of the water inlet flow channel, and the first top plate vortex elimination grid bars are distributed on two sides of the horn pipe in the length direction of the top plate of the water inlet flow channel; a plurality of second top plate vortex elimination grid bars are arranged in the width direction of the top plate of the water inlet flow channel, and the second top plate vortex elimination grid bars are distributed on two sides of the flared tube in the width direction of the top plate of the water inlet flow channel; through the utility model discloses, pump station operating efficiency can be effectively improved, the roof is eliminated and the pump swirl is gone into.
Description
Technical Field
The utility model relates to a two-way runner pump device roof grid vortex structure that disappears belongs to hydraulic engineering, municipal works field.
Background
The water inlet flow passage is a water flow passage which is arranged for improving the water suction condition of the water pump and is used for connecting the water suction pool with the water suction inlet of the water pump. In coastal lake areas along the river, aiming at the two-way water pumping requirement of irrigation and drainage combination, a plurality of two-way water pumping pump stations are built, and the box culvert type two-way runner pump station realizes two-way water diversion and drainage by adjusting the inlet and outlet gates of the two-way runners, so that the box culvert type two-way runner pump station is widely applied. Due to the structural particularity of the box culvert type bidirectional flow channel pump device, when the box culvert type bidirectional flow channel pump device operates normally by opening and closing the gate, the water inlet flow channel and the water outlet flow channel always have blind ends, the flow state at the blind ends is poor, the water flows back to the positions near the bell mouths, gas in water easily forms air masses to be sucked into the water pump, the problems of unit vibration, noise and the like are caused, and certain potential safety hazards exist.
According to the different positions that the whirlpool takes place and take place the device condition at the different grade type, there is more patent measure about the vortex that disappears at present, because open type intake pond water pump top is free surface, changes the production swirl of breathing in, and more patents are based on this expansion, block and can disappear the whirlpool with the air contact. According to the position of the enclosed wall-attached vortex of the water inlet pool, the vortex is avoided by arranging a column and other rectification measures in the prior art. Aiming at the bottom attached vortex, a plurality of patents develop and optimize the bottom diversion pier form to form various forms of rectifying pieces, diversion plates and the like, and the main purpose is to avoid the generation condition of the vortex. The vortex eliminating measures in the box culvert type bidirectional flow channel are relatively few, the backflow of the water inlet flow channel leads to the fact that the horn mouth is easy to form wall-attached vortex, and aiming at the problem, the vortex eliminating structure of the grid bars on the top plate of the bidirectional flow channel pump device is adopted, the formation of a continuous large vortex band can be effectively avoided, and the operation stability of the water pump is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-way runner pump device roof grid vortex structure that disappears to the problem that exists among the prior art.
The utility model aims at realizing the vortex eliminating structure of the grid bars of the top plate of the bidirectional flow passage pump device by the following technical proposal, which is characterized by comprising a water inlet flow passage and a water outlet flow passage, wherein the top of the water inlet flow passage is provided with a water inlet flow passage top plate, and the water outlet flow passage is arranged at the upper part of the water inlet flow passage; a horn tube is arranged between the water inlet flow passage and the water outlet flow passage, the water inlet flow passage and the water outlet flow passage are communicated through the horn tube, the upper end of the horn tube extends into the water outlet flow passage, and the lower end of the horn tube extends into the water inlet flow passage; an impeller is arranged in the horn tube;
a plurality of first top plate vortex elimination grid bars are arranged in the length direction of the top plate of the water inlet flow channel, and the first top plate vortex elimination grid bars are distributed on two sides of the horn pipe in the length direction of the top plate of the water inlet flow channel;
the width direction of the water inlet runner top plate is provided with a plurality of second top plate vortex elimination grid bars, and the second top plate vortex elimination grid bars are distributed on two sides of the horn tube along the width direction of the water inlet runner top plate.
The inlet runner roof length direction position is equipped with 8 first roof grid bars that disappear vortex, and the horn tube both sides of inlet runner roof length direction set up 4 first roof grid bars that disappear vortex respectively.
And 6 second top plate vortex elimination grid strips are arranged at the position of the top plate of the water inlet flow channel in the width direction, and 3 second top plate vortex elimination grid strips are respectively arranged on two sides of the horn tube in the width direction of the top plate of the water inlet flow channel.
The height of the first top plate vortex elimination grid bars is 0.15 time of the diameter of the impeller, the width of the first top plate vortex elimination grid bars is 0.14-0.16 time of the diameter of the impeller, and the gap between the first top plate vortex elimination grid bars and the first top plate vortex elimination grid bars is 0.14-0.16 time of the diameter of the impeller; the arrangement range of the first top plate vortex elimination grid bars on one side of the water inlet flow channel in the length direction is 0.98-1.12 times of the diameter of the impeller, and the arrangement range of the first top plate vortex elimination grid bars on the other side is 0.98-1.12 times of the diameter of the impeller;
the height of the second top plate vortex elimination grid bars is 0.15 time of the diameter of the impeller, the width of the second top plate vortex elimination grid bars is 0.14-0.16 time of the diameter of the impeller, and the gap between the second top plate vortex elimination grid bars and the second top plate vortex elimination grid bars is 0.14-0.16 time of the diameter of the impeller; the arrangement range of the plurality of second top plate vortex reduction grid bars on one side of the water inlet flow channel in the width direction is 0.7-0.8 time of the diameter of the impeller, and the arrangement range of the plurality of second top plate vortex reduction grid bars on the other side is 0.7-0.8 time of the diameter of the impeller.
The interval between the first top plate vortex elimination grid bar at one side of the flared tube and the first top plate vortex elimination grid bar at the other side of the flared tube in the length direction of the water inlet flow channel is equal to the diameter of the bell mouth;
the interval between the vortex eliminating grid bars of the second top plate on one side of the horn tube and the vortex eliminating grid bars of the second top plate on the other side of the horn tube in the width direction of the water inlet flow channel is equal to the diameter of the horn mouth.
The length direction of the top plate of the water inlet flow channel is the water flow direction in the water inlet flow channel; the width direction of the top plate of the water inlet flow channel is perpendicular to the water flow direction in the water inlet flow channel.
The utility model discloses rational in infrastructure, convenient to use, through the utility model provides a pair of two-way runner pump device roof grid whirlpool structure that disappears can effectively solve the two-way water inlet runner roof department aqueous vapor of box culvert formula and gather and form the roof and attach the condition emergence of wall whirlpool to improve water pump operating stability. A two-way runner pump unit roof grid vortex structure that disappears, the purpose is in order to avoid intake runner roof department to attach the formation of wall whirlpool, improves pump station operating efficiency and stability. The top plate grid strip vortex eliminating structure is arranged right above the outer edge of the bell mouth, grid strips are arranged in the circumferential direction according to the diameter of a water pump according to a certain size, four grid strips (first top plate vortex eliminating grid strips) are arranged on two sides of the water pump in the length direction of a flow channel, three grid strips (second top plate vortex eliminating grid strips) are arranged on two sides of the water pump in the width direction of the flow channel, and the top plate air mass is prevented from forming air suction wall-attached vortex.
According to the flow state analysis in the box culvert type bidirectional water inlet flow channel, water flows to the water pump through the water inlet flow channel and is sucked, due to the structural characteristics of the bidirectional flow channel, flow lines at the blind end of the water inlet flow channel are few, a large amount of backflow exists, the water inlet continuously enters water, the flow state near the bell mouth is complex, and water flows in different directions are collected. The shape of the bell mouth and the bottom diversion pier can effectively improve the flow state of an inflow pump, however, water flow in a flow channel is always accompanied by water vapor with a certain volume fraction, the water flow is gathered at the bell mouth due to the water inflow direction and the blind end, the water vapor is upwards attached to the upper top plate of the bell mouth due to the buoyancy effect and is gathered to form an air mass for a long time, and the air mass is sucked by the water pump to form a continuous air suction vortex to cause vibration and noise. The top plate wall-attached vortex generating range is small, the positions are relatively fixed, a top plate grid vortex eliminating structure shown in figure 1 is arranged above the bell mouth, the vortex eliminating structure is circumferentially arranged at the top plate above the bell mouth, four grids (first top plate vortex eliminating grids) are respectively arranged on two sides of the water pump in the length direction of the flow channel according to the vortex frequently-occurring positions, three grids (second top plate vortex eliminating grids) are respectively arranged on two sides of the water pump in the width direction of the flow channel, after the grids are arranged, the water body structure at the original top plate is scattered, water vapor is blocked outside the grids, the wall-attached vortex generating range is not limited, the probability of vortex generation is reduced, meanwhile, the water vapor gathered in the grids can only be transversely and longitudinally distributed due to the limitation of the grids, persistent air suction vortex is not easily formed, the vibration noise of the water pump is avoided, and the vortex eliminating purpose is achieved.
Has the advantages that: the vortex eliminating structure for the grid bars on the top plate of the arranged bidirectional flow passage pump device can effectively isolate that gas in water is gathered in a frequent generation area of vortex on the top plate and the water body structure of the generation area of vortex on the top plate is scattered by the grid bars for redistribution, and due to the lack of a large amount of air mass collection, the formation of persistent air suction vortex is effectively inhibited, and the generation of vortex at the top plate is eliminated from the root. The utility model discloses be applied to pump station construction and transformation, can effectively improve pump station operating efficiency, eliminate the roof and go into pump swirl.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the vortex eliminating structure of the middle roof grid of the present invention;
FIG. 3 is a side view of the vortex eliminating structure of the middle roof grid of the present invention;
FIG. 4 is a top view of the vortex eliminating structure of the middle roof grid of the present invention;
in the figure: the vortex eliminating device comprises a water inlet flow channel 1, a water outlet flow channel 2, an impeller 3, a horn tube 4, a water inlet flow channel top plate 5, a vortex eliminating grid bar 6-1, a first top plate and a vortex eliminating grid bar 6-2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
A bidirectional runner pump device top plate grid vortex elimination structure comprises a water inlet runner 1 and a water outlet runner 2, wherein the top of the water inlet runner 1 is provided with a water inlet runner top plate 5, and the water outlet runner 2 is arranged at the upper part of the water inlet runner 1; a horn tube 4 is arranged between the water inlet flow channel 1 and the water outlet flow channel 2, the water inlet flow channel 1 and the water outlet flow channel 2 are communicated through the horn tube 4, the upper end of the horn tube 4 extends into the water outlet flow channel 2, and the lower end of the horn tube 4 extends into the water inlet flow channel 1; an impeller 3 is arranged in the flared tube 4.
A plurality of first top plate vortex elimination grid strips 6-1 are arranged in the length direction of the water inlet runner top plate 5, and the first top plate vortex elimination grid strips 6-1 are distributed on two sides of the flared tube 4 along the length direction of the water inlet runner top plate 5; a plurality of second top plate vortex elimination grid strips 6-2 are arranged in the width direction of the water inlet flow channel top plate 5, and the second top plate vortex elimination grid strips 6-2 are distributed on two sides of the horn pipe 4 in the width direction of the water inlet flow channel top plate 5.
The length direction of the top plate 5 of the water inlet flow channel is the water flow direction in the water inlet flow channel 1; the width direction of the inlet flow path top plate 5 is perpendicular to the water flow direction in the inlet flow path 1.
Furthermore, 8 first top plate vortex elimination grid bars 6-1 are arranged at the position of the top plate 5 of the water inlet channel in the length direction, and 4 first top plate vortex elimination grid bars 6-1 are respectively arranged at the two sides of the horn pipe 4 of the top plate 5 of the water inlet channel in the length direction. 6 second top plate vortex elimination grid bars 6-2 are arranged at the width direction of the top plate 5 of the water inlet flow channel, and 3 second top plate vortex elimination grid bars 6-2 are respectively arranged at the two sides of the horn tube 4 in the width direction of the top plate 5 of the water inlet flow channel. The height of the first top plate vortex elimination grid bars 6-1 is 0.15 times of the diameter of the impeller 3, the width of the first top plate vortex elimination grid bars 6-1 is 0.14-0.16 times of the diameter of the impeller 3, and the gap between the first top plate vortex elimination grid bars 6-1 and the first top plate vortex elimination grid bars 6-1 is 0.14-0.16 times of the diameter of the impeller 3; the arrangement range of the first top plate vortex elimination grid bars 6-1 on one side of the length direction of the water inlet flow channel 1 is 0.98-1.12 times of the diameter of the impeller 3, and the arrangement range of the first top plate vortex elimination grid bars 6-1 on the other side is also 0.98-1.12 times of the diameter of the impeller 3;
the height of the second top plate vortex elimination grid bars 6-2 is 0.15 times of the diameter of the impeller 3, the width of the second top plate vortex elimination grid bars 6-2 is 0.14-0.16 times of the diameter of the impeller 3, and the gap between the second top plate vortex elimination grid bars 6-2 and the second top plate vortex elimination grid bars 6-2 is 0.14-0.16 times of the diameter of the impeller 3; the arrangement range of the plurality of second top plate vortex reducing grid bars 6-2 on one side of the water inlet flow passage 1 in the width direction is 0.7-0.8 times of the diameter of the impeller 3, and the arrangement range of the plurality of second top plate vortex reducing grid bars 6-2 on the other side is 0.7-0.8 times of the diameter of the impeller 3. The interval between a first top plate vortex elimination grid strip 6-1 at one side of the horn pipe 4 and a first top plate vortex elimination grid strip 6-1 at the other side of the horn pipe 4 in the length direction of the water inlet flow passage 1 is equal to the diameter of the horn mouth 4; the interval between the second top plate vortex elimination grid strips 6-2 on one side of the horn pipe 4 and the second top plate vortex elimination grid strips 6-2 on the other side of the horn pipe 4 in the width direction of the water inlet flow passage 1 is equal to the diameter of the horn mouth 4.
In fig. 1, the rightward arrow direction is a water flow direction.
The front view of the top plate grid vortex eliminating structure is shown in figure 2, the top plate positions of the water inlet channel in the length direction of the water inlet channel 1 are arranged on two sides of the flared tube 4, and 4 first top plate vortex eliminating grids 6-1 are arranged on each side. The diameter of the water pump impeller is D, the diameter of the horn tube is DL, the height H (H = 0.15D) of the first top plate vortex elimination bars is 6-1, the width B (B = (0.14-0.16) D) of the first top plate vortex elimination bars is 6-1, gaps S (S = (0.14-0.16) D) are arranged in each first top plate vortex elimination bar 6-1, and the arrangement range L1(L1= (0.98-1.12) D) of the first top plate vortex elimination bars 6-1 on one side of the length direction of the water inlet flow channel 1 is formed.
The side view of the top plate grid vortex eliminating structure is shown in figure 3, the top plate positions of the water inlet flow channel in the width direction of the water inlet flow channel are arranged on two sides of the flared tube 4, and 3 second top plate vortex eliminating grid strips 6-2 are arranged on each side. The parameter range of the second roof plate vortex elimination bars 6-2 is the same as that of the first roof plate vortex elimination bars 6-1, wherein the arrangement range of the second roof plate vortex elimination bars 6-2 on one side of the width direction of the water inlet channel 1 is L2(L2= (0.7-0.8) D).
The top view of the roof grid vortex elimination structure is shown in figure 4, a first roof vortex elimination grid 6-1 at one side of the flared tube 4 in the length direction of the water inlet channel 1 and a first roof vortex elimination grid 6-1 at the other side of the flared tube 4 are separated by a bell mouth diameter DL; the second top plate vortex elimination grid bars 6-2 on one side of the flared tube 4 in the width direction of the water inlet flow channel 1 and the second top plate vortex elimination grid bars 6-2 on the other side of the flared tube 4 are separated by a flared diameter DL.
Claims (6)
1. A bidirectional runner pump device top plate grid vortex-eliminating structure is characterized by comprising a water inlet runner (1) and a water outlet runner (2), wherein the top of the water inlet runner (1) is provided with a water inlet runner top plate (5), and the water outlet runner (2) is arranged at the upper part of the water inlet runner (1); a horn tube (4) is arranged between the water inlet flow channel (1) and the water outlet flow channel (2), the water inlet flow channel (1) and the water outlet flow channel (2) are communicated through the horn tube (4), the upper end of the horn tube (4) extends into the water outlet flow channel (2), and the lower end of the horn tube (4) extends into the water inlet flow channel (1); an impeller (3) is arranged in the horn tube (4);
a plurality of first top plate vortex elimination grid bars (6-1) are arranged in the length direction of the water inlet runner top plate (5), and the first top plate vortex elimination grid bars (6-1) are distributed on two sides of the horn tube (4) along the length direction of the water inlet runner top plate (5);
a plurality of second top plate vortex elimination grid bars (6-2) are arranged in the width direction of the water inlet flow channel top plate (5), and the second top plate vortex elimination grid bars (6-2) are distributed on two sides of the horn tube (4) in the width direction of the water inlet flow channel top plate (5).
2. The structure of claim 1, wherein 8 first top plate vortex-eliminating grid bars (6-1) are arranged at the top plate (5) of the water inlet channel in the length direction, and 4 first top plate vortex-eliminating grid bars (6-1) are respectively arranged at two sides of the flared pipe (4) of the top plate (5) of the water inlet channel in the length direction.
3. The top plate grid vortex elimination structure of the bidirectional flow channel pump device as claimed in claim 1, wherein 6 second top plate vortex elimination grids (6-2) are arranged at the position of the top plate (5) of the water inlet flow channel in the width direction, and 3 second top plate vortex elimination grids (6-2) are respectively arranged at two sides of the flared pipe (4) of the top plate (5) of the water inlet flow channel in the width direction.
4. The top plate grid vortex reducing structure of the bidirectional flow channel pump device, as set forth in claim 1, wherein the height of the first top plate vortex reducing grid (6-1) is 0.15 times the diameter of the impeller (3), the width of the first top plate vortex reducing grid (6-1) is 0.14-0.16 times the diameter of the impeller (3), and the gap between the first top plate vortex reducing grid (6-1) and the first top plate vortex reducing grid (6-1) is 0.14-0.16 times the diameter of the impeller (3); the arrangement range of the first top plate vortex elimination grid bars (6-1) on one side of the length direction of the water inlet flow channel (1) is 0.98-1.12 times of the diameter of the impeller (3), and the arrangement range of the first top plate vortex elimination grid bars (6-1) on the other side is 0.98-1.12 times of the diameter of the impeller (3);
the height of the second top plate vortex elimination grid bars (6-2) is 0.15 times of the diameter of the impeller (3), the width of the second top plate vortex elimination grid bars (6-2) is 0.14-0.16 times of the diameter of the impeller (3), and the gap between the second top plate vortex elimination grid bars (6-2) and the second top plate vortex elimination grid bars (6-2) is 0.14-0.16 times of the diameter of the impeller (3); the arrangement range of the plurality of second top plate vortex elimination grid bars (6-2) on one side of the width direction of the water inlet flow channel (1) is 0.7-0.8 time of the diameter of the impeller (3), and the arrangement range of the plurality of second top plate vortex elimination grid bars (6-2) on the other side is 0.7-0.8 time of the diameter of the impeller (3).
5. The structure of vortex elimination of the grid bars on the top plate of the bidirectional flow channel pump device as claimed in claim 1, wherein the interval between the first grid bars (6-1) on one side of the flared tube (4) and the first grid bars (6-1) on the other side of the flared tube (4) in the length direction of the water inlet channel (1) is equal to the diameter of the flared tube (4);
the interval between the second top plate vortex elimination grid bars (6-2) on one side of the flared tube (4) in the width direction of the water inlet flow channel (1) and the second top plate vortex elimination grid bars (6-2) on the other side of the flared tube (4) is equal to the diameter of the flared tube (4).
6. The grid vortex-reducing structure of the top plate of the bidirectional flow channel pump device as claimed in claim 1, wherein the length direction of the top plate (5) of the water inlet flow channel is the water flow direction in the water inlet flow channel (1); the width direction of the top plate (5) of the water inlet flow channel is the direction vertical to the water flow direction in the water inlet flow channel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120188835.XU CN214465122U (en) | 2021-01-25 | 2021-01-25 | Top plate grid vortex eliminating structure of bidirectional flow passage pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120188835.XU CN214465122U (en) | 2021-01-25 | 2021-01-25 | Top plate grid vortex eliminating structure of bidirectional flow passage pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465122U true CN214465122U (en) | 2021-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120188835.XU Expired - Fee Related CN214465122U (en) | 2021-01-25 | 2021-01-25 | Top plate grid vortex eliminating structure of bidirectional flow passage pump device |
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| Country | Link |
|---|---|
| CN (1) | CN214465122U (en) |
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2021
- 2021-01-25 CN CN202120188835.XU patent/CN214465122U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |