CN105421283A - Circulation and water level controllable water inlet pool - Google Patents
Circulation and water level controllable water inlet pool Download PDFInfo
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- CN105421283A CN105421283A CN201510974957.0A CN201510974957A CN105421283A CN 105421283 A CN105421283 A CN 105421283A CN 201510974957 A CN201510974957 A CN 201510974957A CN 105421283 A CN105421283 A CN 105421283A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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Abstract
The invention relates to a circulation and water level controllable water inlet pool which comprises a pool body, a top cover, a bottom plate, a plurality of water inlet pipes, a water outlet pipe, flow guide hoods and a measurement control device, wherein the pool body is a cuboid-shaped cavity body with the two ends opened, which is defined by a front side wall, a rear side wall, a left side wall and a right side wall; the top cover is in fixed sealing connection with the top end of the pool body; the bottom plate is in fixed sealing connection with the bottom end of the pool body; water outlets of the water inlet pipes are externally sleeved with the flow guide hoods; a right water outlet hole is formed in the right side wall; a plurality of water inlet pipe holes, an upper water outlet pipe hole and a pressure pipe hole are formed in the top cover; a lower water outlet pipe hole is formed in the bottom plate; the water inlet pipes penetrate through the water inlet pipe holes to stretch into the pool body, and the stretching lengths can be adjusted; an upper water outlet pipe penetrates through the upper water outlet pipe hole to stretch into the pool body, and the stretching length can be adjusted; a right water outlet pipe hole is connected with a right water outlet pipe or is sealed by a right side wall baffle plate; the lower water outlet pipe hole is connected with a lower water outlet pipe or is sealed by a bottom plate baffle plate; the pressure pipe hole is connected with a pressure pipeline; and the flow guide hoods can adjust inflow angles of the water inlet pipes.
Description
Technical field
The present invention relates to a kind of intake pool, particularly relate to the intake pool of a kind of controlled circular rector and water level.
Background technology
Intake pool be a kind of in water resources rational allotment the hydraulic structure that plays a key effect, to hydraulic loss and the flow regime of water inlet in Hydraulic and Hydro-Power Engineering and pumping station system, have vital impact.Especially intake construction, crucial to the effect of fluidised form in water pump, directly affect the efficiency of pumping plant unit operation with stable.Usual intake pool water level and flow velocity are are all imported and exported gate valve to control by regulating, and circular rector size in pond and positive and negatively all do not have consideration.Intake pool inner fluid speed is the vector with size and Orientation, when the arbitrary variable of velocity magnitude in intake pool or direction changes in time, namely intake pool inner fluid circular rector changes, change (the circular rector non-zero of circular rector, fluid is vortex flow) also just mean and the change of vorticity will produce the vortex that scale size differs.When producing whirlpool, backflow, flow velocity inequality and water-flow distribution in intake pool and being uncontrollable, pump efficiency can be caused to reduce, even cause cavitation (in and unit vibration, affect pumping plant safety time serious and stablize.
The core configuration of existing intake pool is made up of structures such as inlet pipeline, pond body and outlet pipelines, by adopt diversion pier, airflow fence, low bank, pressure (every) measure such as plate and deflection cone prevents or slows down the generation of bad fluidised form in intake pool.But, specifically actual for a certain engineering, use which kind of measure economical and effective the most, except water conservancy factor, the structure how these measures to be combined with Practical Project is the simplest, and economy is the most reasonable, most constructability and conveniently in the future managing, not a set of Common Criteria.In addition, the water-flow distribution in existing intake pool cannot regulate accordingly with the change of operating mode, and water level was also difficult to reach dynamic equilibrium within very short lock in time.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the intake pool of a kind of controlled circular rector and water level, the flow velocity that water inlet pipe becomes a mandarin and fluid flow angle, water inlet pipe and the distance between outlet pipe and base plate and pond body structure and inlet tube and outlet tube configuration all can need flexible modulation according to operating mode, thus can form stable target fluid circular rector and intake pool water level in intake pool.
For achieving the above object, the present invention takes following technical scheme: the intake pool of a kind of controlled circular rector and water level, is characterized in that, this intake pool comprises pond body, top cover, base plate, water inlet pipe, outlet pipe, kuppe and measuring and controlling; Wherein, described pond body is the supreme cuboid cavity of going to the bottom surrounded by front side wall, rear wall, left side wall and right side wall, and the broadside of described pond body and the lenth ratio on long limit are 2:3, described right side wall central authorities offer a right water outlet pore, described right water outlet pore is provided with a removable right side wall baffle plate, to need close or open described right water outlet pore according to operating mode; The top fixed seal connection of described top cover and described pond body, described top cover offers multiple tapped water inlet pore, a tapped upper water-out pore and a pressure pore, described pressure pore is connected with for supercharging or the pressure piping of taking out pressure; The bottom fixed seal connection of described base plate and described pond body, described base plate offers a lower discharging tube hole, described lower discharging tube hole is provided with a removable base plate baffle plate, to need close or open described lower discharging tube hole according to operating mode; The medial surface of described front side wall, rear wall, top cover and base plate is provided with the baffle plate draw-in groove being parallel to described right side wall, and described baffle wedge slot in described right side wall body long edge lengths place in pond described in 2/3, described baffle plate draw-in groove is provided with a removable pond with matching body Internal baffle, to need the structural adjustment of described pond body for cuboid or square according to operating mode;
Described water inlet pipe comprises water inlet end and water side, and described water inlet end is connected with secondary inlet pipeline, and the end-enclosed of described water side is also spacedly provided with multiple delivery port sidewall is first-class, and the middle part outer wall of described water inlet pipe is provided with water inlet pipe external screw thread; The described water side of many identical described water inlet pipes is each passed through multiple described water inlet pore and stretches in the body of described pond, and be connected with described water inlet pore thread seal respectively by described water inlet pipe external screw thread, by the position regulating described water inlet pipe external screw thread to be connected with described water inlet pore, described water inlet pipe can be regulated to stretch into length in the body of described pond;
Described outlet pipe comprises upper water-out pipe, lower discharging tube and right outlet pipe; Described upper water-out pipe comprises water inlet end and water side, and described water side is connected with secondary upper water-out pipeline, and described water inlet end end is the regular horn mouth for intaking, and the middle part outer wall of described upper water-out pipe is provided with upper water-out pipe external screw thread; The described regular horn mouth of described upper water-out pipe stretches in the body of described pond through described upper water-out pore, and be connected with described upper water-out pore thread seal by described upper water-out pipe external screw thread, by the position regulating described upper water-out pipe external screw thread to be connected with described upper water-out pore, described upper water-out pipe can be regulated to stretch into length in the body of described pond; Described lower discharging tube also comprises water inlet end and water side, described water side is connected with secondary lower discharging tube road, described water inlet end end is the location horn mouth for intaking, be provided with the lower discharging tube adpting flange suitable with described lower discharging tube hole around the horn mouth of described location, described location horn mouth replaces described base plate baffle plate and described lower discharging tube hole fixed seal connection by described lower discharging tube adpting flange as required; The water inlet end of described right outlet pipe replaces described right side wall baffle plate and the fixed seal connection of described right water outlet pore as required;
Described kuppe comprises cover cylinder, airflow fence leaf and weep hole, the upper inside wall of described cover cylinder is provided with internal thread, described kuppe is located at the outside of the described water side of described water inlet pipe and is threaded with described water inlet pipe by described cover jacket casing, and the length of described cover cylinder can cover all described delivery ports; Airflow fence leaf described in multi-disc is axially arranged at the outside of described cover cylinder abreast along described cover cylinder, and be fixedly connected with at a certain angle with the outer wall of described cover cylinder, described weep hole to be opened on the described cover barrel between described airflow fence leaf and to be connected with described delivery port;
Described measuring and controlling comprises flow-metering mechanism and flow control device, and described water inlet pipe is provided with flow control device, described outlet pipe is provided with flow control device and flow-metering mechanism.
Described weep hole is consistent with the length of described airflow fence leaf along the length of described cover cylinder axis.
Described measuring and controlling also comprises curl measuring mechanism, and described curl measuring mechanism is arranged in described upper water-out pipe.
Described water inlet pipe is the six roots of sensation, described top cover offers six described water inlet pores, and six described water inlet pores are separately positioned on the corner of described top cover and the described baffle plate draw-in groove angle crossing with the long limit of described top cover; Described upper water-out pore is arranged on the intersection point of the diagonal angle line of four the described water inlet pores in right side.
The top of described pond body and bottom are provided with pond body flange, the surrounding of described top cover and base plate is respectively arranged with the top cover flange suitable with described pond body flange and base board flange, and described pond body is respectively by the described pond body flange of top and bottom and described top cover flange and base board flange and described top cover and base plate fixed seal connection.
Described top cover is provided with top cover and reinforces boss at each described water inlet pore place; Described top cover is being provided with positioning boss around the region of described upper water-out pore and pressure pore; Described right side wall is provided with right side and reinforces boss at described right water outlet pore place.
Described top cover also comprises the locating flange dish that center offers screwed hole, and described locating flange dish is threaded in the middle part of described upper water-out pipe, is fixedly connected with the described top cover around described upper water-out pore simultaneously.
Top seal aprons slot is offered on the described top cover flange medial surface of described top cover surrounding, on the base board flange medial surface of described base plate surrounding, offer base plate fluid sealant ring recess, in described top seal aprons slot and base plate fluid sealant ring recess, all O-ring seal is set.
Between described locating flange dish and described top cover, between described right side wall baffle plate and described right side wall and described base plate baffle plate or be provided with O-ring seal pad between horn mouth flange and described base plate.
The organic material manufacture that described pond body, top cover, base plate, water inlet pipe, outlet pipe and kuppe all adopt transparency high forms.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the intake pool of controlled circular rector of the present invention and water level, by changing the airflow fence leaf angle of water inlet pipe flow and kuppe, dynamically change the inflow condition such as the flow velocity that becomes a mandarin and inflow angle, reach the instant object changing intake pool inner fluid circular rector.2, the present invention can adjust distance between water inlet pipe delivery port and base plate flexibly by water inlet pipe external screw thread, thus obtains the wide fluid circular rector of codomain scope to greatest extent, with the requirement of satisfied different operating mode.3, pond body Internal baffle, right side wall baffle plate and the base plate baffle plate of the present invention by arranging, and different water inlet pipes and outlet pipe coordinated scheme, the different operating modes realizing dissimilar intake pool are run, and promote job stability and the high efficiency of intake pool.4, the intake pool of controlled circular rector of the present invention and water level, structure is simple, is easy to realize, and easily process, without the need to other extras, use cost is lower.5, intake pool of the present invention, is mainly used in carrying out the experimental study for great number of issues in hydraulics category, for the velocity flow profile of entery and delivery port and head loss, critical submergence depth and the hydraulic parameters such as whirlpool that become a mandarin provide reference; Also can be applied to industrial production, have wide range of applications.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention;
Fig. 2 is the sectional structure schematic diagram after pond of the present invention body and top cover and base plate are assembled;
Fig. 3 is the plan structure schematic diagram of pond of the present invention body;
Fig. 4 is the right TV structure schematic diagram of pond of the present invention body;
Fig. 5 is the structural representation of A-A section in Fig. 3;
Fig. 6 is the plan structure schematic diagram of top cover of the present invention;
Fig. 7 be top cover of the present invention look up structural representation;
Fig. 8 is the plan structure schematic diagram of base plate of the present invention;
Fig. 9 be base plate of the present invention look up structural representation
Figure 10 is the plan structure schematic diagram of base plate baffle plate of the present invention;
Figure 11 is the structural representation of B-B section in Figure 10;
Figure 12 is the sectional structure schematic diagram of water inlet pipe of the present invention;
Figure 13 is the structural representation of C-C section in Figure 12;
Figure 14 is the enlarged section structural representation of water inlet pipe of the present invention local;
Figure 15 is the structural representation of upper water-out pipe of the present invention;
Figure 16 is the plan structure schematic diagram of lower discharging tube of the present invention;
Figure 17 is the structural representation of D-D section in Figure 16;
Figure 18 is the structural representation of connecting pipe hoop of the present invention;
Figure 19 is the structural representation of E-E section in Figure 18;
Figure 20 is the main TV structure schematic diagram of kuppe of the present invention;
Figure 21 is the left TV structure schematic diagram of kuppe of the present invention;
Figure 22 is the structural representation of F-F section in Figure 20;
Figure 23 is the sectional structure schematic diagram of locating flange dish of the present invention;
Figure 24 is the structural representation of O-ring seal pad of the present invention;
Figure 25 is the structural representation of G-G section in Figure 24.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the intake pool of a kind of controlled circular rector provided by the invention and water level, it comprises pond body 1, top cover 2, base plate 3, water inlet pipe 4, outlet pipe 5, kuppe 6 and measuring and controlling (not shown).
Wherein, as shown in Fig. 2 ~ Figure 11, pond body 1 is the supreme cuboid cavity of going to the bottom surrounded by front side wall 11, rear wall 12, left side wall 13 and right side wall 14, and the lenth ratio on the broadside of pond body 1 and long limit is 2:3; Right side wall 14 central authorities of pond body 1 offer a right water outlet pore 15, right water outlet pore 15 are provided with a removable right side wall baffle plate 16, to need close or open right water outlet pore 15 according to operating mode; The top fixed seal connection of top cover 2 and pond body 1, top cover 2 offers the tapped upper water-out pore 22 of multiple tapped water inlet pore 21, and a pressure pore 23, pressure pore 23 is connected with for supercharging or the pressure piping (not shown) of taking out pressure, to realize pressure in different pond bodies 1, meet the requirement of different operating mode; Base plate 3 and the bottom fixed seal connection of pond body 1, base plate 3 offers a lower discharging tube hole 31, lower discharging tube hole 31 is provided with a removable base plate baffle plate 32, to need close or open lower discharging tube hole 31 according to operating mode; The medial surface of front side wall 11, rear wall 12, top cover 2 and base plate 3 is provided with the baffle plate draw-in groove 17 being parallel to right side wall 14, and baffle plate draw-in groove 17 is positioned at right side wall 14 at a distance of the 2/3 long edge lengths place of pond body 1, baffle plate draw-in groove 17 is provided with a removable pond with matching body Internal baffle (not shown), to need according to operating mode by the structural adjustment of pond body 1 for cuboid or square, thus realize non-axis symmetry and to become a mandarin the conversion become a mandarin with axial symmetry.
As shown in Fig. 1 and Figure 12 ~ Figure 14, water inlet pipe 4 comprises water inlet end and water side, water inlet end is connected with secondary inlet pipeline (not shown), the end-enclosed of water side is also spacedly provided with three (only as example sidewall is first-class, be not limited to this) delivery port 41, the middle part outer wall of water inlet pipe 4 is provided with water inlet pipe external screw thread 42; The water side of many identical water inlet pipes 4 is each passed through multiple water inlet pore 21 and stretches in pond body 1, and be connected with water inlet pore 21 thread seal respectively by water inlet pipe external screw thread 42, by the position regulating water inlet pipe external screw thread 42 to be connected with water inlet pore 21, water inlet pipe 4 can be regulated to stretch into length in pond body 1, the distance namely between water inlet pipe 4 end and base plate 3.
As shown in Fig. 1 and Figure 15 ~ Figure 19, outlet pipe 5 comprises upper water-out pipe 51, lower discharging tube 52 and right outlet pipe (not shown); Upper water-out pipe 51 comprises water inlet end and water side, water side is connected with secondary upper water-out pipeline (not shown), water inlet end end is the regular horn mouth 53 for intaking, and the middle part outer wall of upper water-out pipe 51 is provided with upper water-out pipe external screw thread 54; The regular horn mouth 53 of upper water-out pipe 51 stretches in pond body 1 through upper water-out pore 22, and be connected with upper water-out pore 22 thread seal by upper water-out pipe external screw thread 54, by the position regulating upper water-out pipe external screw thread 54 to be connected with upper water-out pore 22, upper water-out pipe 51 can be regulated to stretch into length in pond body 1, the distance namely between regular horn mouth 53 and base plate 3; Lower discharging tube 52 also comprises water inlet end and water side, water side is connected by connecting pipe hoop 81 with secondary lower discharging tube road 8, water inlet end end is the location horn mouth 55 for intaking, the lower discharging tube adpting flange 56 suitable with lower discharging tube hole 31 is provided with around the horn mouth 55 of location, location horn mouth 55 can replace base plate baffle plate 32 and lower discharging tube hole 31 fixed seal connection by lower discharging tube adpting flange 56 as required, thus provides a lower discharging tube road for intake pool; The water inlet end of right outlet pipe can replace right side wall baffle plate 16 and the fixed seal connection of right water outlet pore 15 as required, thus provides a right outlet pipeline for intake pool.
As shown in Figure 20 ~ Figure 22, kuppe 6 comprises cover cylinder 61, airflow fence leaf 62 and weep hole 63, the upper inside wall of cover cylinder 61 is provided with internal thread, kuppe 6 is set in the outside, water side of water inlet pipe 4 by cover cylinder 61 and is threaded with water inlet pipe 4, and the length of cover cylinder 61 can cover all delivery ports 41; Two panels (only as example, being not limited to this) airflow fence leaf 62 is axially arranged at outside cover cylinder 61 abreast along cover cylinder 61, and is fixedly connected with at a certain angle with the outer wall of cover cylinder 61; Weep hole 63 to be opened on cover cylinder 61 wall between two panels airflow fence leaf 62 and to be connected with delivery port 41, and weep hole 63 is consistent with the length of airflow fence leaf 62 along the length of cover cylinder 61 axis; Kuppe 6 can change the inflow angle of water inlet pipe 4, thus changes the liquid circular rector of intake pool inside.
Measuring and controlling comprises flow-metering mechanism and flow control device, flow control device can be that flow control valve is (only as example, be not limited to this), flow-metering mechanism can be flow meter (only as example, being not limited to this); Water inlet pipe 4 is provided with flow control valve, immediately can adjusts the uninterrupted of water inlet pipe 4, thus control to become a mandarin flow velocity size, reach target flow velocity, on the basis that each water inlet pipe Water discharge flow speed is consistent, by adjustment inflow angle and water inlet pipe layout, form symmetrical fluidised form or asymmetric flow; Outlet pipe 5 is provided with flow control valve and flow meter, can controls in real time and the water flow demonstrating water pipe 5.
In above-described embodiment, as shown in Figure 1, measuring and controlling also comprises curl measuring mechanism, and curl measuring mechanism can be signature partners 7, and signature partners 7 is arranged in upper water-out pipe 51, for measuring the curl of upper water-out pipe 51 inner fluid.
In above-described embodiment, the top of pond body 1 and bottom are provided with pond body flange 18, the surrounding of top cover 2 and base plate 3 is respectively arranged with the top cover flange 24 suitable with pond body flange 18 and base board flange 33, and pond body 1 is respectively by the pond body flange 18 of top and bottom and top cover flange 24 and base board flange 33 and top cover 2 and base plate 3 fixed seal connection; In pond body flange 18, top cover flange 24 and base board flange 33, equal interval is evenly provided with multiple screw pilot hole, and the pond body flange 18 of pond body 1 top and bottom is bolted with top cover flange 24 and base board flange 33 respectively.
In above-described embodiment, top cover 2 is provided with top cover and reinforces boss 25 at each water inlet pore 21 place, for increasing the thread contact area of water inlet pore 21 with water inlet pipe 4, ensures water inlet pipe 4 bonding strength and stable movement; Top cover 2 is being provided with positioning boss 26 around the region of upper water-out pore 22 and pressure pore 23, for increasing the contact area of upper water-out pore 22 and pressure pore 23 and upper water-out pipe 51 and pressure piping, ensures bonding strength, may be used for connecting location simultaneously; Right side wall 14 is provided with right side and reinforces boss 19 at right water outlet pore 15 place, for increasing the contact area of right water outlet pore 15 with right outlet pipe, ensure bonding strength.
In above-described embodiment, as shown in Fig. 1 and Figure 23, top cover 2 also comprises the locating flange dish 27 that center offers screwed hole, locating flange dish 27 is threaded in the middle part of upper water-out pipe 51, be fixedly connected with the top cover 2 around upper water-out pore 21 simultaneously, can the position of tightening upper water-out pipe 51, increase the bonding strength of upper water-out pipe 51 and top cover 2.
In above-described embodiment, water inlet pipe 4 is the six roots of sensation, top cover 2 offers six water inlet pores 21, six water inlet pores 21 and is separately positioned on the corner of top cover 2 and baffle plate draw-in groove 17 angle crossing with the long limit of top cover 2; Upper water-out pore 22 is arranged on the intersection point of water inlet pore 21 diagonal angle, four, right side line.
In above-described embodiment, as shown in Figure 24, Figure 25, between locating flange dish 27 and top cover 2, between right side wall baffle plate 16 and right side wall 14 and base plate baffle plate 32 or be provided with O-ring seal pad 9 between horn mouth flange 56 and base plate 3, strengthen the sealing effectiveness connected.
In above-described embodiment, top seal aprons slot 28 is offered on top cover flange 25 medial surface of top cover 2 surrounding, base plate fluid sealant ring recess 34 is offered on base board flange 33 medial surface of base plate 3 surrounding, in top seal aprons slot 28 and base plate fluid sealant ring recess 34, all O-ring seal is set, the sealing performance that pond body 1 is connected with top cover 2 and base plate 3 can be strengthened.
In above-described embodiment, pond body 1, top cover 2, base plate 3, water inlet pipe 4, outlet pipe 5 and kuppe 6 all adopt the high organic material manufacture of transparency to form, the convenient fluid flow state observed in intake pool, and easily process, and cost is lower.
The intake pool of controlled circular rector of the present invention and water level, can be widely used in carrying out the experimental study for great number of issues in hydraulics category.Pond body Internal baffle, right side wall baffle plate and the base plate baffle plate of the present invention by arranging, dissimilar pond shape can be formed, the each inlet and outlet pipe of flexible collocation, forms polytype intake pool experiment condition, to meet dissimilar change circular rector experimental study simultaneously; Can also be undertaken taking out/pressurizeing by the pressure mouth of pipe be arranged on top cover, the change of different ponds body pressure under realizing all types of operating mode, to meet dissimilar conditions researching.The present invention also can be applied to industrial production, realizes different operating mode and runs, and promotes job stability and the high efficiency of intake pool, finally realizes intake pool inner fluid augmentor, improve intake pool internal flow state.
Illustrate below and can apply the experiment type that the present invention carries out test:
Embodiment one:
The present invention can be applied in Hydraulic and Hydro-Power Engineering in the research of oviduct water inlet whirlpool.
The pond of intake pool pond body is wide, front and rear wall apart from and the parameter such as flying height of upper water-out oviduct all can have an impact to the fluidised form of water inlet pool inner water.Upper water-out pipe horn mouth flying height crosses conference increases manufacturing cost, the hydraulic performance but not necessarily obtained; And too small upper water-out pipe horn mouth flying height often increases the bell-mouthed parthydraulic loss of upper water-out pipe, worsen unit fixed on water pump suction fluidised form, even cause the generation in whirlpool, the upper water-out pipe horn mouth attached end.From fluid continuity principle, by the flow of periphery between the upper water-out loudspeaker mouth of pipe to pond body base plate, should equal the flow by upper water-out loudspeaker mouth of pipe section, when the flying height of upper water-out oviduct is different, the velocity flow profile of water inlet pool inner water is also different.
Can by regulating the link position of upper water-out pipe external screw thread and upper water-out pore, the distance between regulation rule horn mouth 53 and base plate 3, realizes the change of the horn mouth suction head to upper water-out pipe; Controlled the flow of water inlet pipe and outlet pipe by flow control valve respectively, obtain different water-in and water-out flow summations, thus control the water level in intake pool, realize the bell-mouthed different depth of immersion of upper water-out pipe; By regulating water inlet pipe external screw thread and the link position of water inlet pore, adjusting the height of mouth of a river distance base plate, by regulating the angle of kuppe airflow fence leaf, regulating into flow path direction, thus obtaining different fluid circular rectors; By changing flow velocity, the speed angle of water inlet pipe delivery port current, obtain water-flow distribution in stable intake pool, and the positive and negative and numerical values recited of water-flow distribution in Dynamic controlling intake pool, thus realize studying the eddy-currents of water inlet.
Embodiment two:
The present invention can be applied in vane type oil pump import prewhirl research in, as water pump experimental bench, research prewhirl on the impact of vane pump performance, and for vane pump import prewhirl eliminate with control device research guidance is provided.
Flowing on flow section before the impeller inlet limit of vane type oil pump is complicated Three-dimensional Flow, owing to affecting by impeller blade, along the circumferential direction presents certain periodicity, there is backflow territory.Prewhirling of pump inlet can reduce the static pressure of pump inside, and along with the increase of flow, the decline of impeller channel inside static pressure is larger, prewhirls stronger, declines more obvious.Prewhirl and reduce the absolute fluid flow angle on impeller inlet limit, increase relative fluid flow angle.And impeller is normally according to irrotationality without angle of attack Theoretical Design, suitable increase is prewhirled and the angle of attack can be made to reduce, and impact loss reduces, pump external characteristics is increased within the specific limits; But along with reinforcement of prewhirling, the angle of attack continues to reduce even to become the negative angle of attack, and make impact loss increase, the efficiency of pump reduces on the contrary.
Positive and negative prewhirling is defined by the similarities and differences of vane rotary direction and liquid stream whirlpool direction of rotation, therefore, can by the flow velocity of the current of instant adjustment water inlet pipe delivery port and incident angle, realization is prewhirled the change of size and direction (positive and negative), thus reduce vane type oil pump under variable working condition condition, the impact loss of impeller inlet and return loss, improve the hydraulic performance at off-design behaviour point, widens Effec-tive Function scope.By being arranged on the signature partners observation curl in upper water-out pipe, obtain angle, whirlpool and other whirlpool physical quantitys; By modern physics imaging technique (such as PIV, particle image velocimetry), prewhirl form and the evolution process at instant recording shooting upper water-out pipe inside and pump inlet and other positions.
Embodiment three:
The present invention can be applied in the research of intake pool inner surface whirlpool.By the flow of each water inlet pipe of Flow-rate adjustment valve regulation, change water inlet flow velocity and the speed angle of each water inlet pipe, obtain water-flow distribution in dynamically controlled intake pool; Under axial symmetry inlet flow conditions and non-axis symmetry inlet flow conditions, by aspect researchs such as the depth of water, flow, circular rector constant, fluidised form descriptions, carry out Research on Regularity free surface volute being become, develops and change.
Embodiment four:
By adopting the lower discharging tube of different size, the combination that the present invention and the tubaeform weir of water outlet spiral can be relied on to carry out the novel flood discharge structure in deep water hole study, the intake pool studying controlled circular rector of the present invention and water level is cutting down the negative pressure in well, hole and the effect in energy dissipation rate.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, setting position and connected mode etc. thereof all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. an intake pool for controlled circular rector and water level, is characterized in that, this intake pool comprises pond body, top cover, base plate, water inlet pipe, outlet pipe, kuppe and measuring and controlling;
Wherein, described pond body is the supreme cuboid cavity of going to the bottom surrounded by front side wall, rear wall, left side wall and right side wall, and the broadside of described pond body and the lenth ratio on long limit are 2:3, described right side wall central authorities offer a right water outlet pore, described right water outlet pore is provided with a removable right side wall baffle plate, to need close or open described right water outlet pore according to operating mode; The top fixed seal connection of described top cover and described pond body, described top cover offers multiple tapped water inlet pore, a tapped upper water-out pore and a pressure pore, described pressure pore is connected with for supercharging or the pressure piping of taking out pressure; The bottom fixed seal connection of described base plate and described pond body, described base plate offers a lower discharging tube hole, described lower discharging tube hole is provided with a removable base plate baffle plate, to need close or open described lower discharging tube hole according to operating mode; The medial surface of described front side wall, rear wall, top cover and base plate is provided with the baffle plate draw-in groove being parallel to described right side wall, and described baffle wedge slot in described right side wall body long edge lengths place in pond described in 2/3, described baffle plate draw-in groove is provided with a removable pond with matching body Internal baffle, to need the structural adjustment of described pond body for cuboid or square according to operating mode;
Described water inlet pipe comprises water inlet end and water side, and described water inlet end is connected with secondary inlet pipeline, and the end-enclosed of described water side is also spacedly provided with multiple delivery port sidewall is first-class, and the middle part outer wall of described water inlet pipe is provided with water inlet pipe external screw thread; The described water side of many identical described water inlet pipes is each passed through multiple described water inlet pore and stretches in the body of described pond, and be connected with described water inlet pore thread seal respectively by described water inlet pipe external screw thread, by the position regulating described water inlet pipe external screw thread to be connected with described water inlet pore, described water inlet pipe can be regulated to stretch into length in the body of described pond;
Described outlet pipe comprises upper water-out pipe, lower discharging tube and right outlet pipe; Described upper water-out pipe comprises water inlet end and water side, and described water side is connected with secondary upper water-out pipeline, and described water inlet end end is the regular horn mouth for intaking, and the middle part outer wall of described upper water-out pipe is provided with upper water-out pipe external screw thread; The described regular horn mouth of described upper water-out pipe stretches in the body of described pond through described upper water-out pore, and be connected with described upper water-out pore thread seal by described upper water-out pipe external screw thread, by the position regulating described upper water-out pipe external screw thread to be connected with described upper water-out pore, described upper water-out pipe can be regulated to stretch into length in the body of described pond; Described lower discharging tube also comprises water inlet end and water side, described water side is connected with secondary lower discharging tube road, described water inlet end end is the location horn mouth for intaking, be provided with the lower discharging tube adpting flange suitable with described lower discharging tube hole around the horn mouth of described location, described location horn mouth replaces described base plate baffle plate and described lower discharging tube hole fixed seal connection by described lower discharging tube adpting flange as required; The water inlet end of described right outlet pipe replaces described right side wall baffle plate and the fixed seal connection of described right water outlet pore as required;
Described kuppe comprises cover cylinder, airflow fence leaf and weep hole, the upper inside wall of described cover cylinder is provided with internal thread, described kuppe is located at the outside of the described water side of described water inlet pipe and is threaded with described water inlet pipe by described cover jacket casing, and the length of described cover cylinder can cover all described delivery ports; Airflow fence leaf described in multi-disc is axially arranged at the outside of described cover cylinder abreast along described cover cylinder, and be fixedly connected with at a certain angle with the outer wall of described cover cylinder, described weep hole to be opened on the described cover barrel between described airflow fence leaf and to be connected with described delivery port;
Described measuring and controlling comprises flow-metering mechanism and flow control device, and described water inlet pipe is provided with flow control device, described outlet pipe is provided with flow control device and flow-metering mechanism.
2. the intake pool of a kind of controlled circular rector as claimed in claim 1 and water level, is characterized in that, described weep hole is consistent with the length of described airflow fence leaf along the length of described cover cylinder axis.
3. the intake pool of a kind of controlled circular rector as claimed in claim 1 and water level, it is characterized in that, described measuring and controlling also comprises curl measuring mechanism, and described curl measuring mechanism is arranged in described upper water-out pipe.
4. the intake pool of a kind of controlled circular rector as claimed in claim 1 and water level, it is characterized in that, described water inlet pipe is the six roots of sensation, described top cover offers six described water inlet pores, six described water inlet pores are separately positioned on the corner of described top cover and the described baffle plate draw-in groove angle crossing with the long limit of described top cover; Described upper water-out pore is arranged on the intersection point of the diagonal angle line of four the described water inlet pores in right side.
5. the intake pool of a kind of controlled circular rector as claimed in claim 1 or 2 or 3 or 4 and water level, it is characterized in that, the top of described pond body and bottom are provided with pond body flange, the surrounding of described top cover and base plate is respectively arranged with the top cover flange suitable with described pond body flange and base board flange, and described pond body is respectively by the described pond body flange of top and bottom and described top cover flange and base board flange and described top cover and base plate fixed seal connection.
6. the intake pool of a kind of controlled circular rector as claimed in claim 1 and water level, is characterized in that, described top cover is provided with top cover and reinforces boss at each described water inlet pore place; Described top cover is being provided with positioning boss around the region of described upper water-out pore and pressure pore; Described right side wall is provided with right side and reinforces boss at described right water outlet pore place.
7. the intake pool of a kind of controlled circular rector as claimed in claim 1 or 2 or 3 or 4 and water level, it is characterized in that, described top cover also comprises the locating flange dish that center offers screwed hole, described locating flange dish is threaded in the middle part of described upper water-out pipe, is fixedly connected with the described top cover around described upper water-out pore simultaneously.
8. the intake pool of a kind of controlled circular rector as claimed in claim 5 and water level, it is characterized in that, top seal aprons slot is offered on the described top cover flange medial surface of described top cover surrounding, on the base board flange medial surface of described base plate surrounding, offer base plate fluid sealant ring recess, in described top seal aprons slot and base plate fluid sealant ring recess, all O-ring seal is set.
9. the intake pool of a kind of controlled circular rector as claimed in claim 7 and water level, it is characterized in that, between described locating flange dish and described top cover, between described right side wall baffle plate and described right side wall and described base plate baffle plate or be provided with O-ring seal pad between horn mouth flange and described base plate.
10. a kind of controlled circular rector as described in claim 1 or 2 or 3 or 4 or 6 or 8 or 9 and the intake pool of water level, it is characterized in that, the organic material manufacture that described pond body, top cover, base plate, water inlet pipe, outlet pipe and kuppe all adopt transparency high forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974957.0A CN105421283B (en) | 2015-12-23 | 2015-12-23 | A kind of intake pool of controllable circular rector and water level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974957.0A CN105421283B (en) | 2015-12-23 | 2015-12-23 | A kind of intake pool of controllable circular rector and water level |
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| Publication Number | Publication Date |
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| CN105421283A true CN105421283A (en) | 2016-03-23 |
| CN105421283B CN105421283B (en) | 2017-06-23 |
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| CN201510974957.0A Active CN105421283B (en) | 2015-12-23 | 2015-12-23 | A kind of intake pool of controllable circular rector and water level |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107482486A (en) * | 2017-06-16 | 2017-12-15 | 合肥宝创电子科技有限公司 | A kind of power distribution cabinet water-cooling heat radiating device |
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| CN203067358U (en) * | 2013-01-24 | 2013-07-17 | 扬州大学 | Novel open-type water pump water inlet pool |
| CN203222785U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Y-shaped flow guiding pier used for forebay rectification |
| CN204570820U (en) * | 2015-04-01 | 2015-08-19 | 扬州大学 | Open type intake pool rear wall partition wall disappears whirlpool device |
| CN204570818U (en) * | 2015-03-10 | 2015-08-19 | 扬州大学 | A kind of closed intake pool Prevention and dissipation cone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070091087A (en) * | 2007-08-14 | 2007-09-07 | 이광석 | Repair facility system that converts fluid flow into high altitude. |
| CN203067358U (en) * | 2013-01-24 | 2013-07-17 | 扬州大学 | Novel open-type water pump water inlet pool |
| CN203222785U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Y-shaped flow guiding pier used for forebay rectification |
| CN204570818U (en) * | 2015-03-10 | 2015-08-19 | 扬州大学 | A kind of closed intake pool Prevention and dissipation cone |
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| CN107482486A (en) * | 2017-06-16 | 2017-12-15 | 合肥宝创电子科技有限公司 | A kind of power distribution cabinet water-cooling heat radiating device |
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| CN105421283B (en) | 2017-06-23 |
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