CN203035611U - Umbrella-type bothway vertical pump device - Google Patents
Umbrella-type bothway vertical pump device Download PDFInfo
- Publication number
- CN203035611U CN203035611U CN 201220714352 CN201220714352U CN203035611U CN 203035611 U CN203035611 U CN 203035611U CN 201220714352 CN201220714352 CN 201220714352 CN 201220714352 U CN201220714352 U CN 201220714352U CN 203035611 U CN203035611 U CN 203035611U
- Authority
- CN
- China
- Prior art keywords
- whirlpool
- outlet
- cuboid
- oviduct
- pump device
- 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 - Fee Related
Links
Images
Abstract
The utility model discloses an umbrella-type bothway vertical pump device, and belongs to the technical field of water conservancy projects. The umbrella-type bothway vertical pump device comprises a bothway cuboid water inlet conduit, a cuboid water outlet conduit, a vortex removal and vortex prevention taper, an inlet horn pipe, an impeller chamber, a guide vane body, a despinner, an annular siphonic water outlet structure, a rear water diversion taper, an outlet horn pipe and a hump annular shell. The vortex removal and vortex prevention taper is arranged inside the bothway cuboid water inlet conduit below the inlet horn pipe. An inlet of the impeller chamber is connected with the inlet horn pipe, and an outlet of the impeller chamber is connected with the guide vane body. The despinner, the rear water diversion taper and the outlet horn pipe are sequentially arranged on the upper portion of the guide vane body. An upper ring side of the hump annular shell is connected with an upper edge of the rear water diversion taper smoothly, and a lower ring side of the hump annular shell is arranged inside the cuboid water outlet conduit to form the annular siphonic water outlet structure. A venthole connector is arranged in the top of a hump of the annular siphonic water outlet structure to be connected with a vacuum breaking valve. The umbrella-type bothway vertical pump device is reasonable and scientific in structure and capable of achieving the four functions of self-discharging, self-introducing, pump drainage and pumping, capable of improving pump device efficiency and saving investment, high in automation degree, and convenient in operation management.
Description
Technical field
The utility model relates to a kind of water engineering facility, and the structure of especially two-way vertical pump device belongs to the hydraulic engineering technical field.
Background technique
Irritate for reaching that row is two-way to draw water and row is from the purpose of drawing certainly, advance works arranges to reach this purpose by the hinge of employing " station four locks ".In recent years, adopt the two-way pumping plant water inlet and outlet device (patent No.: 02286342.7) built many big-and-middle-sized box culvert formula reversible passage pump-units in riverine lakeside area, and at this pump-unit water flowing out structure application the open type water pump water outlet chamber (patent No.: 96231988.0), all can find fluidised form disorder in traditional box culvert formula outlet passage by methods of pump set model tests and CFD calculating, cause hydraulic loss very big, traditional two-way outlet passage all adopts stop gate, the waterpower exciting that brings out in the runner can cause that outlet passage closes the vibration of side gate, produce noise, and then influence the safe and stable operation of pump-unit; Traditional two-way water inlet flow channel of box culvert formula easily produces the whirlpool band, influences the normal operation of water pump, reduces the pump-unit whole efficiency, thereby increases energy consumption, runs counter to the policy of national energy-saving and emission-reduction.
At present, the water inlet structure pattern of unidirectional runner pump-unit mainly contains elbow water inlet flow channel, bell water inlet flow channel, dustpan shaped water inlet flow channel, vertical shaft type water inlet flow channel, inclined water inlet flow channel and 6 kinds of forms of box culvert formula water inlet pool; The water flowing out structure pattern mainly contains straighttube-type outlet passage, siphon outlet conduit, inclined outlet passage and 4 kinds of forms of box culvert formula water outlet pool; Cutout mode commonly used has flap valve, stop gate, three kinds of forms of vacuum breaker valve.These water inlet structure patterns, water flowing out structure pattern and cutout mode have all obtained engineering application widely in unidirectional runner pump-unit, so for two-way vertical pump device, can use for reference structural type wherein and design and model utility goes out a kind ofly to overcome traditional double to the shortcoming of vertical pump device in conjunction with the characteristics of two-way vertical pump device self, whirlpool band as two-way water inlet flow channel, fluidised form complexity in the outlet passage, hydraulic loss is big and do not have a key issue such as rectification measure, in conjunction with the situation of traditional double to vertical pumping plant actual motion, can adopt have easy and simple to handle, cutout is reliable, overhaul the mode that stops easily, at these problems, design a kind of novel two-way its meaning of vertical pump device and application value and just seem very big, can not only solve the above problems, and can improve the water pump condition for import, improve two-way outlet passage internal flow state, improve the hydraulic performance of pump-unit, and then play the effect of energy-saving and emission-reduction.
The model utility content
The purpose of this utility model is the deficiency that exists at above-mentioned prior art, uses for reference the structural type of unidirectional runner pump-unit and in conjunction with two-way vertical pump apparatus features, designs a kind of novel two-way vertical pump apparatus structure, has reached following purpose:
(1) the difference scheduling by gate realizes that row draws certainly certainly, pump drainage is taken out the multinomial function of drawing;
(2) break through traditional double to the single technical barrier of vertical pump device cutout mode, reach pump-unit Operation, Administration and Maintenance purpose easily, reduce the interrupter device investment, improve the interrupter device reliability;
(3) eliminate whirlpool band in the reversible passage pump-unit, improve the water pump condition that becomes a mandarin, adjust the water flow passage internal flow state.
The technical solution of the utility model is, the two-way vertical pump device of umbrella shape, comprise two-way cuboid water inlet flow channel, the cuboid outlet passage, anti-whirlpool, whirlpool awl disappears, the import oviduct, blade wheel chamber, diffuser, anti-whirlpool, the whirlpool awl that disappears is arranged in the two-way cuboid water inlet flow channel of import oviduct below, blade wheel chamber's import connects the import oviduct, blade wheel chamber's outlet connects diffuser, it is characterized in that, be provided with racemic form, annular hydrocone type water flowing out structure, back water guide cone, the outlet oviduct, the hump circular casing, racemic form, back water guide cone, the outlet oviduct is successively set on the top of diffuser, described racemic form is by wheel hub, blade and shell constitute, the wheel hub of racemic form respectively with the wheel hub of diffuser, back water guide cone smooth connection, the shell of racemic form respectively with the shell of diffuser and the smooth connection of outlet oviduct; The upper limb smooth connection of ring limit and back water guide cone on the hump circular casing, under encircle the limit and place looping hydrocone type water flowing out structure in the cuboid outlet passage, the hump top of annular hydrocone type water flowing out structure is provided with at least two vent interfaces of evenly arranging and is connected to vacuum breaker valve.
Described two-way cuboid water inlet flow channel is identical with length and the width of cuboid outlet passage, and cuboid outlet passage outlet port and two-way cuboid water inlet flow channel two influent sides are provided with gate.
Anti-whirlpool, the described whirlpool that disappears awl bus adopts 1/4th oval camber line or variable curvature camber line, disappearing, cone bottom diameter is bored in anti-whirlpool, whirlpool and vertex of a cone diameter ratio is 7.00, the bus of import oviduct is similar to anti-whirlpool, the whirlpool element of a cone line style that disappears, import oviduct bus root edge is along connecing 1/4th ellipse or variable curvature curve, and the import oviduct is " gentleman's cap " shape; Be 0.50 times of impeller nominal diameter with water inlet flow channel base plate spacing at the bottom of the import oviduct, import oviduct admission section diameter is identical with the bottom surface diameter that bore in anti-whirlpool, the whirlpool that disappears, and is 1.50 times of impeller nominal diameter.
The wheel hub of described racemic form is identical with wheel hub and the housing diameter of diffuser outlet side with housing diameter, the blade of racemic form is straight or twisted blade, the blade two side ends is consolidated into an overall structure with wheel hub and shell respectively, and the blade upper and lower end is the oval molded lines of pointed cone.
The ring limit is the form of fracture of circle or variable curvature camber line with the outlet passage wall section of the upper limb smooth connection formation of back water guide cone on the described hump circular casing.
The utility model science rational in infrastructure is foundation with water-in and water-out runner hydraulic performance judging quota, is incorporated into, the pluses and minuses of the design method of outlet passage and cutout mode, and two-way vertical pump device is carried out structural design.Anti-whirlpool, the whirlpool awl that disappears is arranged in the two-way cuboid water inlet flow channel of import oviduct below, blade wheel chamber's import connects the import oviduct, blade wheel chamber's outlet connects diffuser, racemic form, back water guide cone, the outlet oviduct is successively set on the top of diffuser, the wheel hub of racemic form respectively with the wheel hub of diffuser, back water guide cone smooth connection, the shell of racemic form respectively with the shell of diffuser and the smooth connection of outlet oviduct, the upper limb smooth connection of ring limit and back water guide cone on the hump circular casing, guarantee that current are transitted between hump circular casing outlet section diffusion evenly and do not had sudden change of flow speed by racemic form outlet annulus section, the ring limit places in the cuboid outlet passage under the hump circular casing, constitute a kind of compound two-way outlet passage that beveled structure is arranged that is, the ring limit places in the cuboid outlet passage under the hump circular casing, and the hump top is provided with at least two vent interfaces of evenly arranging and connects vacuum breaker valve.Water inlet flow channel hydraulic performance judging quota has four: (1) speed weighted mean angle; (2) the axial velocity profile uniformity; (3) hydraulic loss; (4) average vortex angle.Outlet passage hydraulic performance judging quota has two: (1) hydraulic loss; (2) pressure energy restitution coefficient.Water-in and water-out runner elder generation employing typical water hydraulic design method carries out proposal plan and adopts the CFD technology that it is optimized again.
Advantage of the present utility model and beneficial effect:
The two-way vertical pump device of umbellate form has from row from drawing, pump drainage is taken out four kinds of effects of drawing, played the effect of " station four locks " in the past, has less investment, operation management is convenient, the characteristics that automaticity is high, it is simple in structure that the utility model has taken full advantage of the two-way water inlet flow channel of box culvert formula, easy construction and water inlet fluidised form are smooth-going, from drawing the strong characteristics of conveyance capacity, also utilized the simple to operate of vacuum breaker valve, cutout is reliable and overhaul advantage easily, has solved traditional cuboid outlet passage interrupter device simultaneously and has involved great expense big with traditional siphon outlet conduit engineering work load, construction is the key issue of difficulty comparatively.
Vacuum breaker valve destroys siphon, cuts off the function of current, reaches convenient, the reliable purpose of operation.
Two-way cuboid water inlet flow channel can be avoided the generation of the inner whirlpool of runner band, slackens the big puzzlement of unit vibration and noise, and anti-whirlpool, the whirlpool that disappears awl is manufactured and implemented easily, and is little from the choked flow influence of drawing from row to runner.The import oviduct is used in combination with anti-whirlpool, the whirlpool that disappears awl can further reach the smooth-going purpose that enters blade wheel chamber of current, and the oviduct root edge also has the effect that whirlpool, runner top band enters oviduct that cuts off along the arc that upwarps that connects.
Racemic form has simple in structure, makes the characteristics of installation, maintenance convenient disassembly, and it has the effect of further recovery diffuser outlet residue circular rector, adjusts flow-shape, makes every effort to make current smooth-going, no circular rector, hydraulic performance and the efficient of raising pump-unit.
Compound two-way outlet passage adopts the transition section of simple, the annular hydrocone type water flowing out structure of molded lines to be the form of fracture of circle or variable curvature camber line; The back water guide cone is set in annular hydrocone type water flowing out structure, and back water guide cone and racemic form are and seamlessly transit; The place arranges vacuum breaker valve at hump, and in the outlet port of compound two-way outlet passage common gate is set, and reduces the designing requirement of stop gate and the cost of interrupter device, improves pump assembly efficiency and safe operation reliability simultaneously.When the unidirectional operation operating mode, described compound two-way outlet passage has not only overcome traditional siphon outlet conduit and has been only applicable to the little situation of water outlet pool variation, gate just can not play the dash effect when water level has hump, avoid flow backwards to cause the reversing of unit, adopt vacuum breaker valve to have during non-special water level and move advantage easily, both are used has dual reliable guarantee, this annular hydrocone type water flowing out structure molded lines, section have all simply overcome traditional siphon outlet conduit molded lines complexity, and engineering work load is big, the shortcoming of constructional difficulties.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 a is A-A sectional drawing among Fig. 1.
Fig. 2 b is B-B sectional drawing among Fig. 1.
Fig. 3 is D-D sectional drawing among Fig. 1.
Fig. 4 is C-C sectional drawing among Fig. 1.
Fig. 5 is structural representation of the present utility model.
Fig. 6 a takes out for the utility model pump drainage and draws the operating conditions schematic representation.
Fig. 6 b is that the utility model draws the operating conditions schematic representation certainly from row.
Among the figure: 1 anti-whirlpool, the whirlpool awl that disappears, 2 import oviducts, 3 blade wheel chamber, 4 diffusers, 5 racemic fories, 6 outlet oviducts, 7 back water guide cones, 8 vent interfaces, 9 gates.
Embodiment
The two-way vertical pump device of umbrella shape, formed by two-way cuboid water inlet flow channel, cuboid outlet passage, anti-whirlpool, the whirlpool that disappears awl 1, import oviduct 2, blade wheel chamber 3, diffuser 4, racemic form 5, annular hydrocone type water flowing out structure, back water guide cone 7, outlet oviduct 6, hump circular casing etc., anti-whirlpool, the whirlpool awl that disappears is arranged in the two-way cuboid water inlet flow channel of import oviduct below, blade wheel chamber's import connects the import oviduct, blade wheel chamber's outlet connects diffuser, and racemic form, back water guide cone, outlet oviduct are successively set on the top of diffuser.Racemic form is made of wheel hub, blade and shell, the wheel hub of racemic form respectively with the wheel hub of diffuser, back water guide cone smooth connection, the shell of racemic form respectively with shell and the smooth connection of outlet oviduct of diffuser.The wheel hub of racemic form is identical with wheel hub and the housing diameter of diffuser outlet side with housing diameter, the blade of racemic form is the even-even straight blades, present embodiment adopts two pairs of straight blades (perhaps twisted blade), the blade two side ends is consolidated into an overall structure with wheel hub and shell respectively, and the blade upper and lower end is the oval molded lines of pointed cone.The upper limb smooth connection of ring limit and back water guide cone on the hump circular casing, under encircle the limit and place looping hydrocone type water flowing out structure in the cuboid outlet passage, the outlet passage wall section that the upper limb smooth connection of ring limit and back water guide cone constitutes on the hump circular casing is circle or variable curvature camber line.The hump top of annular hydrocone type water flowing out structure is established four vent interfaces of evenly arranging 8 and is connected to vacuum breaker valve.Two-way cuboid water inlet flow channel is identical with length and the width of cuboid outlet passage, and cuboid outlet passage outlet port and two-way cuboid water inlet flow channel two influent sides are provided with gate 9.Anti-whirlpool, the whirlpool awl bus that disappears adopts 1/4th oval camber line or variable curvature camber line, disappearing, cone bottom diameter is bored in anti-whirlpool, whirlpool and vertex of a cone diameter ratio is 7.00, the bus of import oviduct is similar to anti-whirlpool, the whirlpool element of a cone line style that disappears, import oviduct bus root edge is along connecing 1/4th ellipse or variable curvature curve, and the import oviduct is " gentleman's cap " shape; Be 0.50 times of impeller nominal diameter with water inlet flow channel base plate spacing at the bottom of the import oviduct, import oviduct admission section diameter is identical with the bottom surface diameter that bore in anti-whirlpool, the whirlpool that disappears, and is 1.50 times of impeller nominal diameter.
Pumping plant at different scales, two-way hydrocone type water flowing out structure middle outlet oviduct 6, back water guide cone 7 can adopt steel plate or cast iron to carry out the preprocessing processing and fabricating and install at the scene, can select steel plate or cast iron processing for two-way hydrocone type water flowing out structure outer wall, or adopt concrete to carry out on-the-spot processing and fabricating and install.Two-way cuboid water inlet flow channel runner wall, the whirlpool that disappears anti-whirlpool awl 1 and import oviduct 2 three parts, can adopt steel plate or cast iron preprocessing to make for big-and-middle-sized pumping plant anti-whirlpool, the whirlpool awl 1 that disappears, or adopting shuttering to carry out concrete cast in situs construction, import oviduct 2 can adopt steel plate or cast iron processing and fabricating.For small pumping station, three parts all can take steel plate or cast iron to be made, and soldering is carried out at the scene of transporting to, and it is simple and convenient to construct.
The vertical arranged just beneath of blade wheel chamber 3 anti-whirlpool, the whirlpool awl 1 that disappears, disappear the center of anti-whirlpool, whirlpool awl 1 and impeller center on same vertical line, the bottom surface diameter of anti-whirlpool, whirlpool awl of disappearing is identical with the inlet diameter of import oviduct, the bus of anti-whirlpool, whirlpool awl 1 of disappearing adopts 1/4th or variable curvature curve of oval molded lines, the bus of import oviduct is similar to anti-whirlpool, the whirlpool element of a cone molded lines that disappears, oviduct bus root edge connects 1/4th ellipse or variable curvature curve again, and the import oviduct is " gentleman's cap " shape; Anti-whirlpool, the whirlpool awl 1 that disappears can select concreting to form also can select steel plate or cast iron manufacturing and on-the-spot the installation; The import oviduct adopts steel plate or cast iron manufacturing and on-the-spot the installation.
Back water guide cone 7 is smooth connection in the wheel hub of the wheel hub of racemic form 5 and diffuser 4, the annular two-way hydrocone type water flowing out structure, the shell of racemic form 5 adopts with outlet oviduct 6 and seamlessly transits, guarantee not have installation phenomenons such as projection, back water guide cone 7 can adopt cast iron or the prefabricated back of steel plate materials to install in the scene, the bus of back water guide cone 7 adopts 1/4th oval molded lines or variable curvature molded lines, and the molded lines of outlet oviduct 6 is similar to the bus line style of back water guide cone 7.
The explanation of the utility model method of operation:
All arrange gate at two-way cuboid water inlet flow channel and compound two-way outlet passage both sides, the open and close of its gate are relevant with the operating conditions of pump-unit.If from drawing, only need open two side gates of the two-way water inlet flow channel of novel box culvert formula from row, current enter the two-way water inlet flow channel of novel box culvert formula from the high side of water level, walk around the whirlpool that disappears and prevent entering the low water level side behind the awl of whirlpool, and pump-unit operation signal is shown in Fig. 6 a; If pump drainage is taken out filling, then open the water-in and water-out runner gate of asymmetric side as required, behind the vertical pump unit starting, current enter blade wheel chamber 3 through the two-way water inlet flow channel of novel box culvert formula, after impeller rotation acting, flow out from exit guide vane body 4, further reclaim through racemic form 5 and enter that annular hydrocone type water flowing out structure is laggard goes in the two-way outlet passage of box culvert formula from gate opening one side inflow water outlet pool after the circular rectors, pump-unit operation signal is shown in Fig. 6 b.As if this moment water pump normal shutdown or accidental shutdown, then the vacuum breaker valve of annular hydrocone type water flowing out structure is opened, and cuts off current, and water level is if be in next this side gate of closing rapidly again of superelevation hump situation.
Claims (5)
1. the two-way vertical pump device of umbrella shape, comprise two-way cuboid water inlet flow channel, the cuboid outlet passage, anti-whirlpool, whirlpool awl disappears, the import oviduct, blade wheel chamber, diffuser, anti-whirlpool, the whirlpool awl that disappears is arranged in the two-way cuboid water inlet flow channel of import oviduct below, blade wheel chamber's import connects the import oviduct, blade wheel chamber's outlet connects diffuser, it is characterized in that, be provided with racemic form, annular hydrocone type water flowing out structure, back water guide cone, the outlet oviduct, the hump circular casing, racemic form, back water guide cone, the outlet oviduct is successively set on the top of diffuser, described racemic form is by wheel hub, blade and shell constitute, the wheel hub of racemic form respectively with the wheel hub of diffuser, back water guide cone smooth connection, the shell of racemic form respectively with the shell of diffuser and the smooth connection of outlet oviduct; The upper limb smooth connection of ring limit and back water guide cone on the hump circular casing, under encircle the limit and place looping hydrocone type water flowing out structure in the cuboid outlet passage, the hump top of annular hydrocone type water flowing out structure is provided with at least two vent interfaces of evenly arranging and is connected to vacuum breaker valve.
2. the two-way vertical pump device of umbrella shape according to claim 1, it is characterized in that, described two-way cuboid water inlet flow channel is identical with length and the width of cuboid outlet passage, and cuboid outlet passage outlet port and two-way cuboid water inlet flow channel two influent sides are provided with gate.
3. the two-way vertical pump device of umbrella shape according to claim 1, it is characterized in that, anti-whirlpool, the described whirlpool that disappears awl bus adopts 1/4th oval camber line or variable curvature camber line, disappearing, cone bottom diameter is bored in anti-whirlpool, whirlpool and vertex of a cone diameter ratio is 7.00, the bus of import oviduct is similar to anti-whirlpool, the whirlpool element of a cone line style that disappears, import oviduct bus root edge is along connecing 1/4th ellipse or variable curvature curve, and the import oviduct is " gentleman's cap " shape; Be 0.50 times of impeller nominal diameter with water inlet flow channel base plate spacing at the bottom of the import oviduct, import oviduct admission section diameter is identical with the bottom surface diameter that bore in anti-whirlpool, the whirlpool that disappears, and is 1.50 times of impeller nominal diameter.
4. the two-way vertical pump device of umbrella shape according to claim 1, it is characterized in that, the wheel hub of described racemic form is identical with wheel hub and the housing diameter of diffuser outlet side with housing diameter, the blade of racemic form is straight or twisted blade, the blade two side ends is consolidated into an overall structure with wheel hub and shell respectively, and the blade upper and lower end is the oval molded lines of pointed cone.
5. the two-way vertical pump device of umbrella shape according to claim 1 is characterized in that, the ring limit is the form of fracture of circle or variable curvature camber line with the outlet passage wall section of the upper limb smooth connection formation of back water guide cone on the described hump circular casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220714352 CN203035611U (en) | 2012-12-22 | 2012-12-22 | Umbrella-type bothway vertical pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220714352 CN203035611U (en) | 2012-12-22 | 2012-12-22 | Umbrella-type bothway vertical pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035611U true CN203035611U (en) | 2013-07-03 |
Family
ID=48687740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220714352 Expired - Fee Related CN203035611U (en) | 2012-12-22 | 2012-12-22 | Umbrella-type bothway vertical pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035611U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047185A (en) * | 2012-12-22 | 2013-04-17 | 扬州大学 | Beveled bidirectional vertical pump device |
| CN104818699A (en) * | 2015-04-01 | 2015-08-05 | 扬州大学 | 1/4 elliptic cone conical table eddy eliminating device and method for closed intake pool |
| CN105171342A (en) * | 2015-08-24 | 2015-12-23 | 扬州大学 | Making and forming method for model of siphon type water outlet passage of large pump station |
| CN109707661A (en) * | 2019-01-08 | 2019-05-03 | 扬州大学 | A kind of pump installation of band abnormal shape water guide cone |
| CN113719393A (en) * | 2021-08-27 | 2021-11-30 | 邢志国 | Vortex type power generation mechanism for new energy power generation |
-
2012
- 2012-12-22 CN CN 201220714352 patent/CN203035611U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047185A (en) * | 2012-12-22 | 2013-04-17 | 扬州大学 | Beveled bidirectional vertical pump device |
| CN103047185B (en) * | 2012-12-22 | 2015-09-02 | 扬州大学 | The two-way vertical pump device of umbrella shape |
| CN104818699A (en) * | 2015-04-01 | 2015-08-05 | 扬州大学 | 1/4 elliptic cone conical table eddy eliminating device and method for closed intake pool |
| CN105171342A (en) * | 2015-08-24 | 2015-12-23 | 扬州大学 | Making and forming method for model of siphon type water outlet passage of large pump station |
| CN109707661A (en) * | 2019-01-08 | 2019-05-03 | 扬州大学 | A kind of pump installation of band abnormal shape water guide cone |
| CN113719393A (en) * | 2021-08-27 | 2021-11-30 | 邢志国 | Vortex type power generation mechanism for new energy power generation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203035611U (en) | Umbrella-type bothway vertical pump device | |
| CN100572677C (en) | A kind of flood discharging method and flood discharging tunnel that adopts eddy flow and strong moisture mixing energy dissipation | |
| CN103047185B (en) | The two-way vertical pump device of umbrella shape | |
| CN202500823U (en) | Composite type flare tube | |
| CN201704726U (en) | Novel box culvert-type two-way water inflow passage | |
| CN108775287A (en) | Self priming centrifugal pump | |
| CN205444312U (en) | Two -way pump station of differential pressure control stop gate | |
| CN101881284A (en) | Axial flow pump guide vane body with high specific speed | |
| CN104179159B (en) | Power station bright flowing full tail water system | |
| CN102080671B (en) | Centrifugal pump | |
| CN204185835U (en) | Power station free pressure flow tail water discharge | |
| CN102182706B (en) | S-shaped downwards horizontal axis-extending tubular pump device | |
| CN203741796U (en) | Water filling pressure and flatting structure used for long water diversion tunnel valve | |
| CN204570818U (en) | A kind of closed intake pool Prevention and dissipation cone | |
| CN103114953A (en) | Mixed-flow type water turbine reversed S-shaped rotating wheel with long and short blades | |
| CN210290158U (en) | Plane volute type bidirectional flow channel water inlet structure with excellent hydraulic performance | |
| CN203321859U (en) | Low-lift bidirectional vertical shaft tubular pump device | |
| CN108843579A (en) | Low damage high-efficiency self-suction centrifugal pump | |
| CN206015856U (en) | Rotating flow is from the integrated pumping plant in clear pond | |
| CN210769572U (en) | Box culvert type bidirectional flow channel internal flow line type vortex eliminating structure | |
| CN201636087U (en) | High-specific speed axial-flow pump guide vane | |
| CN209278153U (en) | A kind of micro- lift pump installation of backhoe type blade | |
| CN103790838A (en) | Two-way low lift water pumping device shaped like Omega in Greek letters | |
| CN202900790U (en) | Centrifugal water pump | |
| CN206592346U (en) | A kind of multi-functional unidirectional vertical pump installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |