CN204200715U - A kind of drag reduction vibration damping hydraulic ram - Google Patents
A kind of drag reduction vibration damping hydraulic ram Download PDFInfo
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- CN204200715U CN204200715U CN201420442484.0U CN201420442484U CN204200715U CN 204200715 U CN204200715 U CN 204200715U CN 201420442484 U CN201420442484 U CN 201420442484U CN 204200715 U CN204200715 U CN 204200715U
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Abstract
The utility model relates to a kind of drag reduction vibration damping hydraulic ram, comprise: power pipe, power pipe is connected with the pump housing, the pump housing and bend pipe, connect bottom vertical intake pipe, intake pipe is connected with delivery valve, delivery valve is connected with air tank, air tank is connected with outlet pipe, bend pipe is connected with the small end of reducer, the large end of reducer is connected with drain valve, the water outlet flap back side of delivery valve is provided with water outlet deflector, the sluicing flap upstream face of drain valve is provided with sluicing deflector, the back side of sluicing flap is provided with draft cone, sluicing deflector is fixedly connected with reducer, draft cone is fixedly connected with described sluicing flap.The utility model is provided with flow guide device on two safety check of hydraulic ram, to reach the resistance coefficient reducing safety check, the weight reducing flap and to prevent the object of hydraulic ram high vibration and cavitation erosion, not only can improve the life-span of hydraulic ram, the noise and vibration of obvious reduction hydraulic ram, and the efficiency of hydraulic ram can be significantly improved.
Description
Technical field
The utility model relates to a kind of drag reduction vibration damping hydraulic ram, is a kind of hydraulic mechanical equipment, is that a kind of natural force of utilized head is at the equipment without the need to automatic pump water when other energy.
Background technique
In hydraulic ram design and running, the efficiency of hydraulic ram, vibration, cavitation and cavitation corrosion and noise problem must be considered.
The efficiency of hydraulic ram is main relevant with the coefficient of partial resistance size of safety check.At present, the flap of hydraulic ram drain valve generally adopts simple disk pattern, and its structure is simple, but hydraulic performance is poor, its reason is flap plane with to carry out flow path direction vertical, and current are walked around flap outer rim and formed whirlpool district at reverse side, produce very large coefficient of partial resistance and energy loss.According to hydraulic principle, if arrange suitable flow guide device in the pump housing, improve the fluidised form in the pump housing, reduce the resistance coefficient of safety check, then can significantly improve the efficiency of hydraulic ram.
The vibration & noise of hydraulic ram causes primarily of the closedown of drain valve.In hydraulic ram working procedure, safety check generally opens and closes with the frequency of 30-60 time per minute, and the time from standard-sized sheet to full cut-off of completing is within a few percent second at every turn, close moment flap and valve bonnet seal shock can produce huge impulse force, hard hit not only can shorten the working life of sealing frequently, and makes hydraulic ram high vibration and produce very large noise.
Drain valve flap closes the active force produced
f=
ma, wherein
mfor the quality of flap,
afor the acceleration of flap, so under flap closes the certain condition of acceleration, be directly proportional to the quality of flap to the active force of valve bonnet seal at the moment flap of closing.In hydraulic ram design process, along with acting head
hincrease, hydraulic thrust suffered by drain valve flap is also directly proportional increase, so, in order to ensure the normal work of hydraulic ram, the quality of drain valve flap
mmust be directly proportional increase.This means, along with acting head
hincrease, drain valve flap and valve bonnet seal are clashed into the active force produced and are also directly proportional and increase, and this will make the vibration of hydraulic ram also more violent.
This just produces conflict.On the one hand, the quality reducing drain valve flap can reduce ocsillator strenght and the noise of hydraulic ram.On the other hand, the quality of drain valve flap should along with acting head
hincrease and increase, if do not taken reasonable measure, merely reduce drain valve flap quality and greatly will reduce the efficiency of hydraulic ram, even can not normally run.
When the cavitation phenomenon of hydraulic ram refers to that current flow through the contracted flow aperture place of safety check, flow velocity is maximum, and pressure is minimum, if pressure is at this moment lower than water saturation vapor tension, liquid gasification, produces steam bubble; After water flows through contracted flow aperture place, pressure raises, if exceed saturation vapour pressure value, steam bubble is instantaneous crumbles and fall, and again becomes liquid phase from vapour phase, and this process is called cavitation.When steam bubble is crumbled and fall, spray the energy that release is huge, and produce vibration wave, serious impact and erosion wear are caused to trim surface, also can cause the generation of high vibration and high noisy simultaneously, be called cavitation corrosion.According to operative practice, the cavitation corrosion of hydraulic ram is broken ring and is mainly occurred in the reverse side (back side) of flap and seal ring and flap outer rim, when there is serious cavitation corrosion, in a short period of time, valve rod and flap fracture accident will occur.
In sum, a kind ofly reduce hydraulic ram resistance coefficient, flap quality if can find and prevent the method for cavitation erosion, for improving hydraulic ram efficiency, cut down the vibration & noise of hydraulic ram and have great importance.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of drag reduction vibration damping hydraulic ram.Described hydraulic ram is according to hydraulic principle, suitable flow guide device is set in the pump housing, improve the fluidised form in the pump housing, to reach the resistance coefficient reducing safety check, the weight reducing flap and to prevent the object of hydraulic ram high vibration and cavitation erosion, not only can improve the life-span of hydraulic ram, and the efficiency of hydraulic ram can be significantly improved.
The purpose of this utility model is achieved in that a kind of drag reduction vibration damping hydraulic ram, comprise: power pipe, described power pipe is connected with the pump housing, the pump housing is connected with bottom bend pipe, vertical intake pipe, described intake pipe is connected with delivery valve, and described delivery valve is connected with air tank, and described air tank is connected with outlet pipe, the small end of the reducer that described bend pipe is little with large one end, one end is connected, and the large end of described reducer is connected with drain valve; The water outlet flap back side of described delivery valve is provided with water outlet deflector, and described water outlet deflector is fixedly connected with water delivery flap; The sluicing flap upstream face of described drain valve is provided with sluicing deflector, and the back side of described sluicing flap is provided with draft cone, and described sluicing deflector is fixedly connected with reducer, and described draft cone is fixedly connected with described sluicing flap.
Further, described sluicing deflector is: the head of upstream face is the one in hemisphere type, cydariform circular cone, cydariform round platform, and rear portion is the little frustoconic shape in large rear end, front end.
Further, described sluicing deflector is hollow, and the head of sluicing deflector and afterbody are provided with the through hole of UNICOM, and the rear portion end face diameter of a circle of described sluicing deflector is less than or equal to the diameter of sluicing flap upstream face.
Further, described sluicing deflector is entity, and the rear portion end face diameter of a circle of described sluicing deflector is less than the diameter of sluicing flap upstream face.
Further, described sluicing deflector is connected with the large end of described reducer by fixed guide vane.
Further, described fixed guide vane is the streamlined or round end fine stern symmetrical airfoil stator that 2-6 sheet is installed along water (flow) direction.
Further, described draft cone is cone, and the drift angle of described cone is 90-140 degree.
Further, described drain valve is connected with energy recycle device.
Further, described energy recycle device comprises: the tubaeform tail water diffusing opening be straight up connected with drain valve water outlet, the enlarging of described tubaeform tail water diffusing opening is arranged the water outlet baffle plate of horizontal positioned.
Further, described water outlet deflector is entity, and described water outlet deflector front half part is frustoconic shape, and the small end of described frustoconic shape is connected with the back side of water outlet flap, and water outlet deflector latter half part is the one in hemisphere, cydariform circular cone, cydariform round platform.
The beneficial effect that the utility model produces is: the utility model is provided with flow guide device on two safety check of hydraulic ram, to reach the resistance coefficient reducing safety check, the weight reducing flap and to prevent the object of hydraulic ram high vibration and cavitation erosion, not only can improve the life-span of hydraulic ram, the noise and vibration of obvious reduction hydraulic ram, and the efficiency of hydraulic ram can be significantly improved.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of hydraulic ram described in embodiment one of the present utility model;
Fig. 2 is the stressed schematic diagram of the sluicing flap of traditional hydraulic ram;
Fig. 3 is the stressed schematic diagram of the sluicing flap of hydraulic ram described in embodiment one of the present utility model, is the A point enlarged view in Fig. 1;
Fig. 4 is the current schematic diagram of traditional water hammer pump check valve;
Fig. 5 is the sluicing deflector schematic diagram of the cydariform circular cone described in embodiment two, seven of the present utility model;
Fig. 6 is the sectional view of the stator described in the utility model embodiment six, is the B-B sectional drawing in Fig. 5;
Fig. 7 is the structural representation of the energy recycle device described in the utility model embodiment nine.
Embodiment
Embodiment one:
The present embodiment is a kind of drag reduction vibration damping hydraulic ram, as shown in Figure 1.The present embodiment comprises: power pipe 1, described power pipe is connected with the pump housing 2, the pump housing and bend pipe 3, connect bottom vertical intake pipe 10, described intake pipe is connected with delivery valve 9, described delivery valve is connected with air tank 7, described air tank is connected with outlet pipe 8, the small end of the reducer 4 that described bend pipe is little with large one end, one end is connected, the large end of described reducer is connected with drain valve 6, water outlet flap 902 back side of described delivery valve is provided with water outlet deflector 902, described water outlet deflector is fixedly connected with water outlet flap, sluicing flap 601 upstream face of described drain valve is provided with sluicing deflector 5, the back side of described sluicing flap is provided with draft cone 602, described sluicing deflector is fixedly connected with reducer, described draft cone is fixedly connected with described sluicing flap.
The vibration & noise of hydraulic ram causes primarily of the closedown of drain valve.In hydraulic ram working procedure, drain valve (safety check) generally opens and closes with the frequency of 30-60 time per minute, and the time from standard-sized sheet to full cut-off of completing is within a few percent second at every turn, close moment flap and the shock of valve body can produce huge impulse force, hard hit not only can shorten the working life of sealing frequently, and makes hydraulic ram high vibration and produce very large noise.
The active force of hydraulic ram closedown sluicing flap comes from the head in power pipe.According to Newtonian mechanics formula, promoting sluicing flap is F=ma by the active force (hydraulic thrust) of full open position setting in motion, and in formula, m is the quality of sluicing flap, and a is the acceleration of sluicing flap.Close due to flap and move upward, therefore, at least will overcome gravity accleration, overcome the friction of valve rod simultaneously in addition, and the resistance such as the effect of current, can substantially determining so flap closes acceleration, is namely a value relatively determined.Working principle according to hydraulic ram: the directed force F promoting the motion of sluicing flap is the function of head, and being determined by the external environment condition of hydraulic ram work, is also the numerical value determined.Along with the increase of acting head H, the thrust F promoting the motion of sluicing flap is also directly proportional increase, so in traditional hydraulic ram design process, in order to ensure the high efficiency normal work of hydraulic ram, the quality m of sluicing flap must to be directly proportional increase along with head H.This means, along with the increase of acting head H, the quality of sluicing flap also increases.But the increase of sluicing flap quality, post exercise inertia also increases, and sluicing flap and valve body clash into the active force produced and be also directly proportional and increase, and this will make the vibration of hydraulic ram also more violent.
This just produces conflict.On the one hand, the quality reducing sluicing flap can reduce ocsillator strenght and the noise of hydraulic ram, and on the other hand, the quality of sluicing flap should increase along with the increase of acting head H.In the design of traditional hydraulic ram, in order to reduce the vibration of hydraulic ram, damping spring vibration damping can only be established, to sacrifice efficiency for cost, consequently greatly reducing the efficiency of hydraulic ram.
For addressing this problem, the present embodiment takes the mode of the lifting surface area reducing sluicing flap.Common sluicing flap upstream face is a plane, and this plane is vertical with water (flow) direction, and the size of hydraulic thrust is relevant with the area of upstream face, and area is larger, then hydraulic thrust is larger, and as shown in Figure 2, in figure, multiple arrow represents the pressure of current to sluicing flap.Around this principle, the present embodiment is provided with sluicing deflector at the upstream face of drain valve.Sluicing deflector is fixedly connected with reducer, bear the thrust of a part of current, deflector makes the water side of sluicing flap reduce, the thrust on sluicing flap is namely made to reduce, like this under the prerequisite of guaranteed efficiency, the quality of sluicing flap can be reduced, thus reduce flap momentum at the volley, and then reduction vibration & noise, raise the efficiency.
Sluicing deflector can have various forms, and the head of upstream face is the one in hemisphere type, cydariform circular cone, cydariform round platform, and rear portion is the little frustoconic shape in large rear end, front end.
Deflector can also be made hollow, current can flow through from the centre of deflector, like this, the diameter of deflector can be identical with the diameter of sluicing flap.When sluicing flap and deflector top disengage, the centre from sluicing deflector is passed through by the current promoting the motion of sluicing flap.By controlling the flowing hole in the middle of sluicing deflector, what can control on sluicing flap more accurately is stressed.Shown in Fig. 1 is the hollow situation of a kind of deflector that sluices, and shown in Fig. 3 be deflector is entity, but not hollow situation.
The link of fixing sluicing deflector can be several thin bars, also can be several stators consistent with water (flow) direction.The sectional shape of stator can be rectangle, also can be streamlined or symmetrical aerofoil profile.
The efficiency of hydraulic ram is main relevant with the coefficient of partial resistance size of safety check (delivery valve and drain valve).At present, the sluicing flap of existing hydraulic ram generally adopts disk pattern, and hydraulic performance is poor.Its reason is flap plane with to carry out flow path direction vertical, and current are walked around flap outer rim and formed whirlpool district at reverse side, produce very large coefficient of partial resistance and energy loss, as shown in Figure 4.
Also there is the problem of a cavitation in existing hydraulic ram.When the cavitation phenomenon of hydraulic ram refers to that current flow through the contracted flow aperture place of safety check, flow velocity is maximum, and pressure is minimum, if pressure is at this moment lower than water saturation vapor tension, liquid gasification, produces steam bubble; After water flows through contracted flow aperture place, pressure raises, if exceed saturation vapour pressure value, steam bubble is instantaneous crumbles and fall, and again becomes liquid phase from vapour phase, and this process is called cavitation.When steam bubble is crumbled and fall, spray the energy that release is huge, and produce vibration wave, serious impact and erosion wear are caused to trim surface, also can cause the generation of high vibration and high noisy simultaneously, be called cavitation corrosion.Hydraulic ram operative practice shows, the cavitation corrosion of hydraulic ram is broken ring and mainly occurred in the reverse side (back side) of flap and seal ring and flap outer rim, when there is serious cavitation corrosion, in a short period of time, valve rod and flap fracture accident will occur.
In view of turbulent flow and the Cavitation Problems of safety check back side, the present embodiment is provided with draft cone at the back side of drain valve, water outlet deflector is provided with at the back side of outlet valve, improve the turbulent fluidised form of safety check (delivery valve, drain valve) back side, improve the working efficiency of whole hydraulic ram, solve the problem of cavitation and cavitation erosion simultaneously.
For improving the efficiency of hydraulic ram further, energy recycle device can be set in the outlet port of drain valve, reduce loss of head, raising the efficiency.
Reducer described in the present embodiment is word conventional in a kind of engineering, and have the reducer element of standard to sell, meaning representated by it is the outlet valve of hydraulic ram and the reducer pipe of power pipe joint, normally one end bore is larger for its shape, the other end bore is less, and the present embodiment has also used the concept of reducer, but intension slightly changes.Its Main change is: large end, to the solid of rotation bus of small end, is not straight line, but a bandy curve, the profile of whole reducer is made to look like a cydariform elongated, in other words, the outlet of the reducer described in the present embodiment also occurs that some shrink, as shown in Figure 1,3.
Embodiment two:
The present embodiment is the improvement of embodiment one, is the refinement of embodiment one about sluicing deflector.Sluicing deflector described in the present embodiment is: the head of upstream face is the one in hemisphere type (Fig. 3), cydariform circular cone (Fig. 5), cydariform round platform (Fig. 1), and rear portion is the little frustoconic shape in large rear end, front end.
The head of sluicing deflector is the streamline of hemisphere type, is often called as nose spherical in 3D solid.The curve of described cydariform circular cone to be bus be outwardly convex turns round the circular cone formed, in like manner, and the round platform that the curve of cydariform round platform to be then bus be outwardly convex is rotarily formed.
Embodiment three:
The present embodiment is the improvement of embodiment two, is the refinement of embodiment two about sluicing deflector.Sluicing deflector described in the present embodiment is hollow, and the head of sluicing deflector and afterbody are provided with the through hole of UNICOM, and the rear portion end face diameter of a circle of described sluicing deflector is less than or equal to the diameter of sluicing flap upstream face.
Deflector afterbody described in the present embodiment, namely back side can adopt complete open type and partial occlusion formula.So-called open type, be exactly that deflector back side is not added a cover, deflector is thin-shell construction, as shown in Figure 1.Fig. 1 is a kind of so-called shading type, is exactly that deflector back side has top cover with holes.
According to the size of acting head H, the size of hydraulic thrust suffered by flap can be changed by the size in aperture on adjustment deflector upstream face perforate size and top cover, reaches the object reducing flap quality.
When acting head H is less, deflector back side can be taked complete open type, and take the via hole of larger opening diameter at water conservancy diversion upstream face, to increase hydraulic thrust suffered by flap, ensure that hydraulic ram normally works.When acting head H is larger, such as H>3m, vibrative intensity is clashed in order to cut down flap, then can adopt the flap quality lower than conventional design, at this moment hydraulic thrust suffered by flap must be reduced to ensure that hydraulic ram normally works, less opening diameter should be taked at deflector upstream face for this reason, meanwhile, add the top cover of cover strip circular hole at deflector back side.Under the condition that the quality of sluicing flap is given, along with the increase of H, then the Circularhole diameter on the top cover of deflector back side reduces, to reduce the pressure of water to sluicing flap.
The Installation features of deflector is: flap disk and deflector axle center are at same vertical line.When drain valve is opened completely, flap disk and deflector top cover surface contact, make the diversed body top cover of part flap disk area block.Like this, a part of hydraulic thrust originally acted on flap disk is shared by deflector, to reduce hydraulic thrust suffered by flap, thus creates condition for reducing flap quality.
Working principle is: when drain valve is opened completely, and drain valve flap contacts completely with deflector top, and current are smooth-going walks around deflector, flap, draft cone flowing, as shown in Figure 4.Once hydraulic thrust is greater than its deadweight suffered by drain valve flap, then flap disk just disengages with deflector, start the closedown drain valve that moves upward, along with flap leaves the contact with deflector, the surface of contact of flap disk and hydraulic thrust increases suddenly, meanwhile, along with the closing movement of flap, power pipe will produce huge water hammer pressure, and the movement velocity that flap is closed is accelerated.
Embodiment four:
The present embodiment is the improvement of embodiment two, is the refinement of embodiment two about sluicing deflector.Sluicing deflector described in the present embodiment is entity, and the rear portion end face diameter of a circle of described sluicing deflector is less than the diameter of sluicing flap upstream face.
It is solid that the meaning of entity described in the present embodiment does not represent this object, also can be hollow, and just illustrate do not have through hole in the middle of this object, current along this object flows outside, can not can only enter in this object.
The center portion of sluicing flap is just blocked by sluicing deflector, and the stress surface of the upstream face of sluicing flap in the form of a ring.
Embodiment five:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about sluicing deflector.Sluicing deflector described in the present embodiment is connected with the large end of described reducer by fixed guide vane.
Described fixed guide vane is centre sluicing deflector being fixed on reducer, and current can flow to the outlet of drain valve from the surrounding of sluicing deflector.
The cylindrical surrounding that fixed guide vane is arranged on sluicing deflector is uniform, can arrange two panels stator, also can arrange the stator of the multiple layouts such as three, four, five, six.The sectional shape of fixed guide vane can have various ways: the rectangle of flat sheet, cylindrical, streamlined etc.
Embodiment six:
The present embodiment is the improvement of embodiment five, is the refinement of embodiment five about fixed guide vane.Fixed guide vane described in the present embodiment is the streamlined or round end fine stern symmetrical airfoil stator that 2-6 sheet is installed along water (flow) direction.
Round end fine stern symmetrical airfoil described in the present embodiment refers to: the aerofoil profile of aircraft wing, i.e. projection, mild streamlined on one side, is cut centre, and the shape part of both sides projection being merged and is formed, see Fig. 6, the arrow in figure represents water (flow) direction.
Embodiment seven:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about draft cone.Draft cone described in the present embodiment is the drift angle of cone, described cone
αfor 90-140 degree, see Fig. 5.
Draft cone is fixed on sluicing flap, and its shape also can have multiple choices, as: can be streamlined, nose is spherical.This enforcement takes taper shape.The material of draft cone can choose the less and ultra-high molecule material of anti-cavitation erosion and abrasion of density of mass, as high-strength nylon etc.
Embodiment eight:
The present embodiment is the refinement of above-described embodiment, is the refinement that above-described embodiment exports about drain valve.Drain valve described in the present embodiment is connected with energy recycle device (by the part of dotted line frame in Fig. 1).
The effect of energy recycle device is the streamflow regime by changing drain valve outlet, reduces loss of head, improves the utilization efficiency of hydraulic ram.Energy recycle device can have various ways, such as: use baffle plate in drain valve outlet, be flaring enlarging etc. by the exit design of drain valve, can play the effect reducing loss of head.
Embodiment nine:
This enforcement is the improvement of embodiment eight, is the refinement of embodiment eight about energy recycle device, as shown in Figure 7.Described energy recycle device comprises: the tubaeform tail water diffusing opening 6032 be straight up connected with drain valve water outlet, the enlarging of described tubaeform tail water diffusing opening is arranged the water outlet baffle plate 6031 of horizontal positioned.
Drain valve aperture exit energy recycle device is made up of drain valve tail water diffusing tube and baffle plate.Baffle plate after increaser causes a pressure head, impels fluid to shunt along cross section.This causes reducing of separation zone, thus fluid is more effectively spread.It is now loss in increaser or the outlet velocity pressure loss all reduces.Just turn to (turning 90 degrees) as radial direction before baffle plate impels fluid not go out pipeline simultaneously, as shown by the arrows in Figure 7.
Tail water diffusing tube can be formed by reducer fitting, and inlet diameter equals drain valve orifice diameter D, reducer fitting outlet diameter D
3>D, D is got in suggestion
3/ D>=2.Reducer fitting bus adopts radius to be the circular arc of R, and R/D >=0.5 is got in suggestion.Top cover is circular dull and stereotyped, diameter>=D
3, and the distance s value between top cover and reducer fitting is 0.15<s/D<0.25.
When not establishing energy recycle device, it exports local head loss
, wherein
v 0 for drain valve aperture flow velocity,
ξ 0for drain valve aperture exit coefficient of partial resistance,
gfor gravity accleration.When drain valve aperture is free discharge,
ξ 0> 1; When drain valve aperture is submerge discharging flow,
ξ 0≈ 1.
When energy recycle device is established in drain valve outlet, the loss of head of diffusing tube energy recycle device is
,
ξfor energy recycle device resistance coefficient.As 0.15<s/ D<0.25 and R/D=0.5 time, then 0.41<
ξ<0.49.
Obviously, the exit head loss that drain valve energy recycle device can reduce drain valve is greatly set, is equivalent to the energy having reclaimed the outlet of part drain valve, improves the efficiency of hydraulic ram.
S/D is got in suggestion
1=0.20 and R/D
1=0.5, corresponding=0.41.When shortage bus is the reducer fitting of circular arc, the commercial reducer fitting of standard can be adopted.
Embodiment ten:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about water outlet deflector.Water outlet deflector described in this enforcement is entity, and described water outlet deflector front half part is frustoconic shape, and the small end of described frustoconic shape is connected with the back side of water outlet flap, and water outlet deflector latter half part is the one in hemisphere, cydariform circular cone, cydariform round platform.
Entity described in the present embodiment can be hollow, also can be solid.Can the macromolecular materials such as nylon can be used to make by water outlet deflector.
Finally it should be noted that, below only in order to the technical solution of the utility model to be described and unrestricted, although be described in detail the utility model with reference to preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model (shape of the deflector that such as sluices, the mounting type of sluicing deflector, the shape etc. of reducer) or equivalent replacement, and not depart from the spirit and scope of technical solutions of the utility model.
Claims (10)
1. a drag reduction vibration damping hydraulic ram, comprise: power pipe, described power pipe is connected with the pump housing, the pump housing is connected with bottom bend pipe, vertical intake pipe, described intake pipe is connected with delivery valve, described delivery valve is connected with air tank, described air tank is connected with outlet pipe, the small end of the reducer that described bend pipe is little with large one end, one end is connected, the large end of described reducer is connected with drain valve, it is characterized in that, the water outlet flap back side of described delivery valve is provided with water outlet deflector, and described water outlet deflector is fixedly connected with water delivery flap; The sluicing flap upstream face of described drain valve is provided with sluicing deflector, and the back side of described sluicing flap is provided with draft cone, and described sluicing deflector is fixedly connected with reducer, and described draft cone is fixedly connected with described sluicing flap.
2. hydraulic ram according to claim 1, is characterized in that, described sluicing deflector is: the head of upstream face is the one in hemisphere type, cydariform circular cone, cydariform round platform, and rear portion is the little frustoconic shape in large rear end, front end.
3. hydraulic ram according to claim 2, it is characterized in that, described sluicing deflector is hollow, and the head of sluicing deflector and afterbody are provided with the through hole of UNICOM, and the rear portion end face diameter of a circle of described sluicing deflector is less than or equal to the diameter of sluicing flap upstream face.
4. hydraulic ram according to claim 2, is characterized in that, described sluicing deflector is entity, and the rear portion end face diameter of a circle of described sluicing deflector is less than the diameter of sluicing flap upstream face.
5. hydraulic ram according to claim 1, is characterized in that, described sluicing deflector is connected with the large end of described reducer by fixed guide vane.
6. hydraulic ram according to claim 5, is characterized in that, described fixed guide vane is the streamlined or round end fine stern symmetrical airfoil stator that 2-6 sheet is installed along water (flow) direction.
7. hydraulic ram according to claim 1, is characterized in that, described draft cone is cone, and the drift angle of described cone is 90-140 degree.
8. hydraulic ram according to claim 1, is characterized in that, described drain valve is connected with energy recycle device.
9. hydraulic ram according to claim 8, it is characterized in that, described energy recycle device comprises: the tubaeform tail water diffusing opening be straight up connected with drain valve water outlet, the enlarging of described tubaeform tail water diffusing opening is arranged the water outlet baffle plate of horizontal positioned.
10. according to the hydraulic ram one of claim 1-9 Suo Shu, it is characterized in that, described water outlet deflector is entity, described water outlet deflector front half part is frustoconic shape, the small end of described frustoconic shape is connected with the back side of water outlet flap, and water outlet deflector latter half part is the one in hemisphere, cydariform circular cone, cydariform round platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420442484.0U CN204200715U (en) | 2014-08-07 | 2014-08-07 | A kind of drag reduction vibration damping hydraulic ram |
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| CN201420442484.0U CN204200715U (en) | 2014-08-07 | 2014-08-07 | A kind of drag reduction vibration damping hydraulic ram |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121240A (en) * | 2014-08-07 | 2014-10-29 | 北京宇豪胜水利科技咨询有限公司 | Resistance and vibration reduction hydraulic ram pump |
| CN105021315A (en) * | 2015-06-29 | 2015-11-04 | 安徽汉威电子有限公司 | Connection mode of hydraulic pressure clamp meter |
| CN107103166A (en) * | 2017-06-09 | 2017-08-29 | 中国水利水电科学研究院 | The differential pressure air tank and design method of a kind of water hammer-resistant |
-
2014
- 2014-08-07 CN CN201420442484.0U patent/CN204200715U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121240A (en) * | 2014-08-07 | 2014-10-29 | 北京宇豪胜水利科技咨询有限公司 | Resistance and vibration reduction hydraulic ram pump |
| CN104121240B (en) * | 2014-08-07 | 2016-08-24 | 北京宇豪胜水利科技咨询有限公司 | A kind of drag reduction vibration damping hydraulic ram |
| CN105021315A (en) * | 2015-06-29 | 2015-11-04 | 安徽汉威电子有限公司 | Connection mode of hydraulic pressure clamp meter |
| CN107103166A (en) * | 2017-06-09 | 2017-08-29 | 中国水利水电科学研究院 | The differential pressure air tank and design method of a kind of water hammer-resistant |
| CN107103166B (en) * | 2017-06-09 | 2018-04-24 | 中国水利水电科学研究院 | The differential pressure air tank and design method of a kind of water hammer-resistant |
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