CN204344532U - For the flow guide device of pump - Google Patents
For the flow guide device of pump Download PDFInfo
- Publication number
- CN204344532U CN204344532U CN201420679297.4U CN201420679297U CN204344532U CN 204344532 U CN204344532 U CN 204344532U CN 201420679297 U CN201420679297 U CN 201420679297U CN 204344532 U CN204344532 U CN 204344532U
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- increaser
- diameter
- back segment
- leading portion
- fluid
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Abstract
For the flow guide device of pump, comprise can be connected with recycle pump increaser, diversion chamber and the pipe conveying fluid that can be connected with circulating line; The diameter of described increaser leading portion is consistent with the diameter of circulating-pump outlet, and described increaser leading portion end is provided with flange plate, and increaser back segment diameter is extended to consistent with diversion chamber gradually; Described diversion chamber one end is connected with increaser back segment end, the other end is connected with pipe conveying fluid leading portion end, described pipe conveying fluid leading portion reduced diameter is to consistent with pipe conveying fluid back segment diameter and circulating line diameter, and described pipe conveying fluid back segment end is provided with flange plate.The utility model can carry out reduction of speed supercharging by convection cell, and a kinetic energy part for fluid is converted into pressure energy, thus reduces the energy loss of fluid in pipeline cyclic process; Regulate the running state of fluid, reduce the turbulent flow of fluid, improve laminar flow, realize flow guide device and recycle pump science coupling, thus reduce the dissipation loss of circulating water, optimize water project situation, promote working efficiency.
Description
Technical field
The utility model relates to fluid treatment field, in particular for the flow guide device of pump.
Background technique
Recycle pump and circulating line are the indispensable devices of heating system, central air-conditioning system and the industrial colling circulatory system, the loss of its cyclic process has material impact to its operational efficiency, except the height of pump operating cycle efficiency, the flow losses of fluid in circulating line are also key factors.
In the course of the work, the flowing of overcurrent part, with the local resistance loss that hydraulic friction is lost and impact, the separation of flow, velocity attitude and size variation etc. cause, can consume part energy to recycle pump.The position that the useful energy head of recycle pump not only will be used for improving fluid is high, but also will be used for overcoming the flow resistance in the course of conveying of fluid place, and raising carries the static energy of fluid and speed to wait.
Motion state and the flow boundary condition of the energy loss that fluid flows and fluid are closely related.In the pipeline that fluid runs, the limit wall of fluid contact, along the change of journey, also can cause the loss of energy.The boundary conditions of fluid flowing, because parts such as reducing, regulating gate, bifurcated pipe, elbow, bend pipes, and pipe network route is tortuous, complicated, runner direction and flow direction is inconsistent and velocity magnitude not etc., the flowing of fluid well-distributing is damaged, the size of flow velocity, direction or distribution change, and show as the dissipation effects such as friction, disturbance, with a large amount of the losing (reason of exploitation flow guide device) of other forms such as heat, vibration, noise.The maximum feature of fluid has movability, all can deform under any small shearing force effect, and distortion will cause the relative movement of particle, destroys the balance of fluid.Therefore, when fluid is in geo-stationary, only embody action of compressive stress between internal fluid particle, shearing stress levels off to zero.Real fluid is in the process of flowing, and because of the acting of relative movement shearing stress between fluid, and the acting of frictional force between fluid and solid wall, be all compensate by the mechanical energy of loss fluid self, this part Conversion of Energy is heat energy.The resistance causing energy of flow to lose and the viscosity of fluid and inertia, relevant with agitation with the retardation of solid wall convection cell.The motion of real fluid mostly is turbulent motion, in turbulent motion, due to the restriction of viscosity of fluid and Gu Bi, be affected near solid wall skim fluid particle speed, its fluctuating velocity is very little, and the additional shearing stress of pulsation is also very little, current gradient is but very large, stickiness shearing stress plays a leading role, and can think that fluid is in laminar motion state, this skim is called viscous sublayer.Improve the laminar flow of fluid, contribute to the operational efficiency of lifting fluid.
The Proper Match of recycle pump and pipe-line system is the prerequisite ensureing that pipe network normally runs, and configuration parameter is the area theory calculate gained by institute's cooling or heat supply, and the configuration parameter of recycle pump is the power of motor and the flow and lift of water pump.The type selecting of recycle pump, the efficiency of recycle pump, the situation of pipe network and the hydraulics etc. of pipeline cause direct impact to the efficiency of water circulation system.There is hydraulics difference, hydraulic loss in actual applications and cause greatly system cloud gray model not energy efficient, because the behaviour in service of reality and perfect condition are distinguishing.Improve energy utilization efficiency, be not negatively use the energy less, but utilize technological means and systematic approach, while improving utilization efficiency, reduce dissipation loss during power consumption work done.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of flow guide device for pump, and this flow guide device convection cell carries out reduction of speed supercharging, also can reduce the turbulent flow of fluid in circulating line, improves laminar flow, reduces hydraulic loss.
In order to solve the problems of the technologies described above, the utility model provides a kind of flow guide device for pump, comprise can be connected with recycle pump increaser, diversion chamber and the pipe conveying fluid that can be connected with circulating line; The diameter of described increaser leading portion is consistent with the diameter of circulating-pump outlet, and described increaser leading portion end is provided with flange plate, and increaser back segment diameter is extended to consistent with diversion chamber gradually; Described diversion chamber one end is connected with increaser back segment end, the other end is connected with pipe conveying fluid leading portion end, described pipe conveying fluid leading portion reduced diameter is to consistent with pipe conveying fluid back segment diameter and circulating line diameter, and described pipe conveying fluid back segment end is provided with flange plate.
As optimal way, described increaser back segment is round table-like, and its diameter linearly increases.
As optimal way, the angle α between the tube wall of described increaser back segment and axis is 20 ° ~ 60 °.
As optimal way, the length L1 of described increaser back segment is according to following formulae discovery: L1=D/2*tg α-d/2*tg α, and wherein D is the diameter of diversion chamber, and d is the diameter of increaser leading portion, and α is the angle between the tube wall of increaser back segment and axis.
As optimal way, the length L2 of described increaser leading portion is according to following formulae discovery: L2=d/2*tg α, and wherein d is the diameter of increaser leading portion, and α is the angle between the tube wall of increaser back segment and axis.
As optimal way, described increaser back segment is tangent with increaser leading portion and is the arc surface of 90 ° perpendicular to diversion chamber, central angle.
As optimal way, the fillet radius r of described increaser back segment is 0.15 ~ 0.45 times of the diameter d of increaser leading portion.
As optimal way, the diameter D of described diversion chamber is according to following formulae discovery: D=d+2r, and wherein d is the diameter of increaser leading portion, and r is the fillet radius of increaser back segment.
As optimal way, described pipe conveying fluid leading portion is round table-like, and its diameter linearly reduces.
As optimal way, described pipe conveying fluid leading portion is tangent with pipe conveying fluid back segment and is the arc surface of 90 ° perpendicular to diversion chamber, central angle.
The utility model flow guide device is arranged between recycle pump and circulating line, comprises increaser, diversion chamber and pipe conveying fluid.According to boundary layer skin effect, liquid speed is accelerated, and the pressure on the interface of fluid contact can reduce; Liquid speed reduces, and the pressure at the interface of fluid contact can increase.The formula of foundation linear loss and local losses, the hydraulic loss along journey, local is directly proportional to mean velocity quadratic power.Mean velocity is larger, and resistance coefficient is larger, and hydraulic loss is more; Mean velocity is less, and resistance coefficient is less, and relative hydraulic loss is less.Flow guide device is assemblied in recycle pump water outlet, and the operation conditions according to recycle pump performance parameter and pipeline designs, and by reduction of speed supercharging and adjustment fluid running state, reduces hydraulic loss, optimizes water project situation, promote working efficiency.According to ride quality and the pipeline actual state of recycle pump, at recycle pump water outlet configuration flow guide device, flow guide device is made up of increaser, diversion chamber and pipe conveying fluid, increaser plays deceleration guide functions (incompressible fluid flow velocity and actual internal area in flow process are inversely proportional to), and diversion chamber is the motion state regulating fluid.Its working procedure is through reduction of speed supercharging, is pressure energy by the part kinetic transformation of fluid, according to law of conservation of energy, through reduction of speed supercharging, a kinetic energy part for fluid is converted into pressure energy, thus reduces the energy loss of fluid in pipeline cyclic process.Meanwhile, regulate the running state of fluid, reduce the turbulent flow of fluid to a certain extent, improve laminar flow, realize flow guide device and recycle pump science coupling, thus reduce the dissipation loss of circulating water, optimize water project situation, promote working efficiency.Flow guide device structure is simple, various shapes, flow guide device designs according to the operation conditions of recycle pump performance, structure, Operational Limits and pipeline, the size of its diversion chamber, the change etc. of angle of flare, be be associated with the actual operation requirements of recycle pump, system and the actual state of circulating line, these parameters can design according to actual needs.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic front view of the utility model flow guide device embodiment 1.
Fig. 2 is the elevational schematic view of the utility model flow guide device embodiment 1.
Fig. 3 is the schematic front view of the utility model flow guide device embodiment 2.
Fig. 4 is the schematic front view of the utility model flow guide device embodiment 3.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described.
Embodiment 1
Be schematic front view and the elevational schematic view of this flow guide device as depicted in figs. 1 and 2, comprise can be connected with recycle pump increaser 100, diversion chamber 200 and the pipe conveying fluid 300 that can be connected with circulating line.The diameter of described increaser leading portion 110 is consistent with the diameter of circulating-pump outlet, described increaser leading portion 110 end is provided with flange plate 810 and connects for circulating-pump outlet, described increaser back segment 121 is in round table-like, its diameter linearly increases to consistent with diversion chamber 200, and the angle α (also known as angle of flare) between the tube wall of described increaser back segment 121 and axis is 20 ° ~ 60 °.Claimant is through calculating and demonstration, draw the formula of the length L2 of increaser leading portion 110 and the length L1 of increaser back segment 121, the length L1 of described increaser back segment 121 is according to following formulae discovery: L1=D/2*tg α-d/2*tg α, the length L2 of described increaser leading portion 110 is according to following formulae discovery: L2=d/2*tg α, wherein D is the diameter of diversion chamber 200, d is the diameter of increaser leading portion 110, d is the diameter of increaser leading portion 110, and α is the angle between the tube wall of increaser back segment 121 and axis.The length L of diversion chamber 200 is according to the practical operation situation of circulation pump power, flow, lift, and pipeline actual state etc., and take different length ratios, reckoning draws.
Described diversion chamber 200 one end is connected with increaser back segment 121 end, the other end is connected with pipe conveying fluid leading portion 312 end, described pipe conveying fluid leading portion 312 is tangent with pipe conveying fluid back segment 320 and is the arc surface of 90 ° perpendicular to diversion chamber 200, central angle, its reduced diameter is to consistent with pipe conveying fluid back segment 320 diameter and circulating line diameter, and described pipe conveying fluid back segment 320 end is provided with flange plate 820 and connects for circulating line.Wherein the length of pipe conveying fluid back segment 320 can with reference to the length L2 of increaser leading portion 110.The size of flange plate 810,820 can designed, designed as required, repeats no more.
Embodiment 2
Be illustrated in figure 3 the schematic front view of the present embodiment flow guide device, wherein increaser back segment 122 is different from embodiment 1, and increaser back segment 122 is not round table-like, but tangent and be 90 perpendicular to diversion chamber 200, central angle with increaser leading portion 110
°arc surface.The fillet radius r of described increaser back segment 122 is 0.15 ~ 0.45 times (being preferably 0.2 times) of the diameter d of increaser leading portion 110.The diameter D of described diversion chamber 200 is according to following formulae discovery: D=d+2r, and wherein d is the diameter of increaser leading portion 110, and r is the fillet radius of increaser back segment 122.All the other structures and size relationship, with reference to embodiment 1, repeat no more.
Embodiment 3
Be illustrated in figure 4 the schematic front view of the present embodiment flow guide device, the shape of pipe conveying fluid leading portion 311 is not right angle cambered surface but round table-like as different from Example 1, and its diameter is decreased to consistent with pipe conveying fluid back segment 320 diameter and circulating line diameter.All the other structures and size relationship, with reference to embodiment 1, repeat no more.
Claims (10)
1., for a flow guide device for pump, it is characterized in that, comprise can be connected with recycle pump increaser (100), diversion chamber (200) and the pipe conveying fluid (300) that can be connected with circulating line;
The diameter of described increaser leading portion (110) is consistent with the diameter of circulating-pump outlet, described increaser leading portion (110) end is provided with flange plate (810), and increaser back segment (121,122) diameter is extended to consistent with diversion chamber (200) gradually;
Described diversion chamber (200) one end is connected with increaser back segment (121,122) end, the other end is connected with pipe conveying fluid leading portion (311,312) end, described pipe conveying fluid leading portion (311,312) reduced diameter is to consistent with pipe conveying fluid back segment (320) diameter and circulating line diameter, and described pipe conveying fluid back segment (320) end is provided with flange plate (820).
2. the flow guide device for pump according to claim 1, is characterized in that, described increaser back segment (121) is in round table-like, and its diameter linearly increases.
3. the flow guide device for pump according to claim 2, is characterized in that, the angle α between the tube wall of described increaser back segment (121) and axis is 20 ° ~ 60 °.
4. the flow guide device for pump according to claim 3, it is characterized in that, the length L1 of described increaser back segment (121) is according to following formulae discovery: L1=D/2*tg α-d/2*tg α, wherein D is the diameter of diversion chamber (200), d is the diameter of increaser leading portion (110), and α is the angle between the tube wall of increaser back segment (121) and axis.
5. the flow guide device for pump according to claim 3, it is characterized in that, the length L2 of described increaser leading portion (110) is according to following formulae discovery: L2=d/2*tg α, wherein d is the diameter of increaser leading portion (110), and α is the angle between the tube wall of increaser back segment (121) and axis.
6. the flow guide device for pump according to claim 1, it is characterized in that, described increaser back segment (122) is tangent with increaser leading portion (110) and is the arc surface of 90 ° perpendicular to diversion chamber (200), central angle.
7. the flow guide device for pump according to claim 6, is characterized in that, the fillet radius r of described increaser back segment (122) is 0.15 ~ 0.45 times of the diameter d of increaser leading portion (110).
8. the flow guide device for pump according to claim 7, it is characterized in that, the diameter D of described diversion chamber (200) is according to following formulae discovery: D=d+2r, wherein d is the diameter of increaser leading portion (110), and r is the fillet radius of increaser back segment (122).
9. the flow guide device for pump according to claim 1 ~ 8 any one, is characterized in that, described pipe conveying fluid leading portion (311) is for round table-like, and its diameter linearly reduces.
10. the flow guide device for pump according to claim 1 ~ 8 any one, it is characterized in that, described pipe conveying fluid leading portion (312) is tangent with pipe conveying fluid back segment (320) and is the arc surface of 90 ° perpendicular to diversion chamber (200), central angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679297.4U CN204344532U (en) | 2014-11-14 | 2014-11-14 | For the flow guide device of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679297.4U CN204344532U (en) | 2014-11-14 | 2014-11-14 | For the flow guide device of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344532U true CN204344532U (en) | 2015-05-20 |
Family
ID=53227804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679297.4U Expired - Fee Related CN204344532U (en) | 2014-11-14 | 2014-11-14 | For the flow guide device of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852898A (en) * | 2020-07-17 | 2020-10-30 | 上海凯泉泵业（集团）有限公司 | Structure of channel diffusion part of submersible axial flow pump |
| CN112709881A (en) * | 2019-10-24 | 2021-04-27 | 克罗内斯股份公司 | Pipeline compensator |
-
2014
- 2014-11-14 CN CN201420679297.4U patent/CN204344532U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709881A (en) * | 2019-10-24 | 2021-04-27 | 克罗内斯股份公司 | Pipeline compensator |
| CN112709881B (en) * | 2019-10-24 | 2024-05-14 | 克罗内斯股份公司 | Pipeline compensator |
| CN111852898A (en) * | 2020-07-17 | 2020-10-30 | 上海凯泉泵业（集团）有限公司 | Structure of channel diffusion part of submersible axial flow pump |
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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: 20150520 Termination date: 20181114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |