CN207033856U - A kind of structure of liquid conveying jet pump - Google Patents
A kind of structure of liquid conveying jet pump Download PDFInfo
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- CN207033856U CN207033856U CN201720721001.4U CN201720721001U CN207033856U CN 207033856 U CN207033856 U CN 207033856U CN 201720721001 U CN201720721001 U CN 201720721001U CN 207033856 U CN207033856 U CN 207033856U
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Abstract
A kind of structure of jet pump, a kind of structure of liquid conveying jet pump are the utility model is related to, the jet pump is made up of nozzle (1), receiving chamber (2), mixing chamber (3) assembling；The axially open of the nozzle (1) is in four sections of straight tube, the draw, small straight tube and small expansion compositions；‑0.1≥X≥‑0.4；L1=14.714X+30.621；L1=(1.7~2) d3；L2=(5.5~6.2) d3；d3 2/d* 2=1.9~2.1；d1 3/d* 2=1.8~2.2；The operating pressure of the jet pump is 0.5~0.7MPa, 0~0.2MPa of lift, 3 ± 10%m of flow3/h.The utility model provides a kind of structure of simple, rule liquid conveying jet pump, it can conveniently, simply obtain every geometric parameter of associated jets pump, single it can make, can Batch Design make, substantially increase design, the operating efficiency made, cost of manufacture is reduced, accelerates manufacturing speed.
Description
Technical field
A kind of structure of jet pump is the utility model is related to, more particularly to a kind of knot of jet pump of conveying liquid
Structure.
Background technology
Radionuclide is applied in the field such as industry, agricultural, national defence, nuclear power, such as industrial flaw detection, agricultural breeding,
Development of Atomic Weapons, nuclear energy power generation etc..
Radionuclide contributes for the progress of the mankind, but resulting radwaste radiates to caused by environment
Contact scar problem.The final disposal of radwaste is the optimum method for solving to put contact scar, and glass solidification is disposal radioactivity
One of waste treatment methods, it is a kind of curing technology for solidifying much waster liquid, by high activity liquid waste and glass baseplate by a certain percentage
After mixing, in high-temperature calcination, dissolve, pour, be converted into stabilized glass firming body after annealing.
Radwaste caused by nuclear power production process is initially stored in certain space (or capacity), during by one section
Between after, be delivered to disposal area with jet pump.So jet pump is one of visual plant that radiating medium conveys in nuclear power engineering,
Reliability, the stability of its performance have great significance to engineering operation.
Jet pump has following features：In the case of jet pump structure determination, jet performance：1. when operating pressure, raise
The timing of journey one, inhalation flow can increase as suction increases；2. working as operating pressure, the timing of suction one, suck stream value is one
It is constant to determine range of lift value its value, when more than value range, flex point occurs in its suck stream value, suck stream value reduces.
Jet pump is a kind of device for being used to convey liquid, is widely used in high activity liquid waste glass solidification engineering, due to work
Pipeline complex distribution in journey, the operating mode (i.e. suction and lift) of jet pump is caused to change, but the production capacity (stream of suction inlet
Amount) it is constant.In order to realize this function, under a kind of working condition, a kind of jet pump need to be designed, this causes system design to work
Amount is very big, and configured in one piece is complicated, cost increase.
At present, whole system many places need to set up jet pump progress nuke rubbish conveying, and the operating mode of jet pump is different everywhere, i.e.,
Suction, lift are different, it is desirable under different working conditions, it is desirable to which the inhalation flow of jet pump is constant everywhere.
Specially：Occasion is conveyed in nuke rubbish, the operating pressure generally provided is 0.5~0.7MPa, is distributed throughout
Certain of the suction of jet pump in the range of -0.1~-0.4MPa, it is necessary to each jet pump lift 0~0.2MPa overall process
Under working condition, it is ensured that each jet Pump Suction Nozzle flow is 3 ± 10%m3/h。
Prior art, to meet jet pump of many quantity of system configuration as above under working condition, it there is no a kind of directiveness
Design method, mostly by changing the Discrete geometry size such as mixing chamber, suction inlet sectional dimension, parameter is more, theoretical calculation and
Sunykatuib analysis amount is big, compares blindly, it is necessary to is gradually obtained by largely processing part and repetition test, causes cost height, cycle
Length, workload are big.
Utility model content
The purpose of this utility model is to be used for the liquid that conveying includes liquid, is 0.5~0.7MPa's in operating pressure
Under steam pressure, suction is in the range of -0.1~-0.4MPa, there is provided a kind of operating mode for ensuring that jet pump lift is 0~0.2MPa
Under, suction inlet flow can reach 3 ± 10%m3The regular jet pump design methods of/h.
And the design method wishes to find out a kind of rule, it is easy to simple and easy ground batch making to be used at different operating modes.
The purpose of this utility model is realized by following structure：
A kind of structure of liquid conveying jet pump,
The working media of the jet pump is steam, conveying material is the liquid for including nuke rubbish；
The jet pump by axially open nozzle, axially there is import and export, sidepiece open up ejecting port receiving chamber and
There are contraction, the assembling of straight, diffusion chamber mixing chamber to form positioned at export department's axle center；
The axially open of the nozzle is in four sections of straight tube, the draw, small straight tube and small expansion compositions；
It is characterized in that：
L1=-14.714X+30.621；
L1=(1.7~2) d3；
L2=(5.5~6.2) d3；
d3 2/d* 2=1.9~2.1；
d1 3/d* 2=1.8~2.2；
Wherein：The a diameter of d of small straight length of nozzle (1)*；
The small a diameter of d of expansion segment opening of nozzle (1)1；
The straight cavity length of mixing chamber (3) is L2, a diameter of d3；
The inner osculum end distance to mixing chamber (3) contraction chamber of nozzle (1) is L1；
The suction of jet pump is X (absolute pressure MPa)；
The operating pressure of the jet pump is 0.5~0.7MPa,
0~0.2MPa of lift,
3 ± 10%m of flow3/h。
Further,
Adjustment circle is set between the flange of the nozzle-end and the step of receiving chamber's stepped hole；
Locking nut is set in the nozzle outer end, the appearance of the locking nut is to receive chamber inlet inwall phase with described
The screw thread of kiss；
The interior table of the locking nut, from end to being the face of cylinder and arc circular conical surface inwards, the closing in of arc circular conical surface
Diameter is equal with the straight length diameter of nozzle；
If the height of adjustment circle is H, L is adjusted by the adjustment circle for changing different height H1Length.
Further：
The d3 2/d* 2=1.9~2.1, got the small value when lift is high；Taken large values when lift is low,
The d1 3/d* 2=1.8~2.2, get the small value when suction is big, taken large values when suction is small,
The L1=(1.7~2) d3, get the small value when suction is big, taken large values when suction is small.
Jet pump is a kind of extraordinary conveying equipment to be worked with injection principle, and its is simple in construction, movement-less part, operation
Reliably, it is a kind of special, special freedom from repairs conveying equipment for fluid substances in nuclear engineering the advantages that No leakage.
This jet pump be used in high activity liquid waste glass solidification engineering the conveying of multiple process systems with it is high, in put, corrosivity
The radiating medium of solution, its operating mode (suction, lift and proportion) is different, to meet complex work condition, rationally designs jet
The structural parameters of pump are critically important.
The characteristics of the utility model patent and advantage are：
Radwaste is initially stored in certain space caused by nuclear power production process, through after a period of time, using
Jet pump is delivered to disposal area.So jet pump is one of visual plant that radiating medium conveys in nuclear power engineering, its performance
Reliability, stability has great significance to engineering operation.
The technical program provides a kind of structure of simple, rule liquid conveying jet pump, in the working condition
Under, the suction value of jet pump is simply entered, can conveniently, simply obtain every geometric parameter of associated jets pump, Ke Yidan
It individual making, can be made with Batch Design, greatly improve design, the operating efficiency made, reduce cost of manufacture, accelerate to make speed
Degree.
Brief description of the drawings
Fig. 1 is a kind of structure sectional view of embodiment of the utility model liquid conveying jet pump；
Fig. 2 is a kind of structure sectional view of jet pump of prior art.
In figure：
1 is nozzle, and 2 be receiving chamber, and 3 be mixing chamber, and 4 be locking nut, and 5 be adjustment circle.
Embodiment
Structure of the present utility model is further described below in conjunction with accompanying drawing.
A kind of structure of liquid conveying jet pump,
The working media of the jet pump is steam, conveying material is the liquid for including nuke rubbish；
The jet pump by axially open nozzle 1, axially there is import and export, sidepiece open up ejecting port receiving chamber 2,
And there are contraction, the assembling of straight, diffusion chamber mixing chamber 3 to form positioned at export department's axle center；
The axially open of the nozzle 1 is in four sections of straight tube, the draw, small straight tube and small expansion compositions；
L1=-14.714X+30.621；
L1=(1.7~2) d3；
L2=(5.5~6.2) d3；
d3 2/d* 2=1.9~2.1；
d1 3/d* 2=1.8~2.2；
Wherein：The a diameter of d of small straight length of nozzle 1*；
The small a diameter of d of expansion segment opening of nozzle 11；
The straight cavity length of mixing chamber 3 is L2, a diameter of d3；
The inner osculum end distance to mixing chamber (3) contraction chamber of nozzle 1 is L1；
The suction of jet pump is X (absolute pressure MPa)；
The operating pressure of the jet pump is 0.5~0.7MPa,
0~0.2MPa of lift,
3 ± 10%m of flow3/h。
According to the suction value of the condition entry jet pump, it can facilitate, simply obtain the every several of associated jets pump
What parameter, complete design and the satisfactory jet pump of making.
Adjustment circle 5 is set between the flange of the end of nozzle 1 and the step of the stepped hole of receiving chamber 2；
It is intraoral to enter with the receiving chamber 2 in the outer end of nozzle 1 setting locking nut 4, the appearance of the locking nut 4
The screw thread of wall kissing；
The interior table of the locking nut, from end to being the face of cylinder and arc circular conical surface inwards, the closing in of arc circular conical surface
Diameter is equal with the straight length diameter of nozzle 1；
If the height of adjustment circle 5 is H, L is adjusted by the adjustment circle 5 for changing different height H1Length.Can easily it take
Obtain the L of different length1Jet pump.Cost of manufacture is greatly simplified and reduced, improves manufacturing speed.
The utility model is mainly made up of locking nut, adjustment circle, nozzle, receiving chamber and mixing chamber.In order to prevent nozzle
The loosening of nozzle is influenceed in high-temperature steam and normal temperature injection medium interaction, spray nozzle front end locking nut 4 is locked.
The d3 2/d* 2=1.9~2.1, got the small value when lift is high；Taken large values when lift is low,
The d1 3/d* 2=1.8~2.2, get the small value when suction is big, taken large values when suction is small,
The L1=(1.7~2) d3, get the small value when suction is big, taken large values when suction is small.
It is some designs for the condition that meets below and makes and implement part, by testing and using complying fully with technical requirements,
Every test value is as follows：
The each jet pump made in 0~0.2MPa range of lift, stablize 3 by flow, namely suction inlet flow
± 10%m3Between/h, meet the requirements.
Claims (3)
1. a kind of structure of liquid conveying jet pump,
The working media of the jet pump is steam, conveying material is the liquid for including nuke rubbish；
The jet pump by axially open nozzle (1), axially there is import and export, sidepiece open up ejecting port receiving chamber (2),
And there are contraction, straight, diffusion chamber mixing chamber (3) assembling to form positioned at export department's axle center；
The axially open of the nozzle (1) is in four sections of straight tube, the draw, small straight tube and small expansion compositions；
It is characterized in that：
-0.1≥X≥-0.4；
L1=-14.714X+30.621；
L1=(1.7~2) d3；
L2=(5.5~6.2) d3；
d3 2/d* 2=1.9~2.1；
d1 3/d* 2=1.8~2.2；
Wherein：The a diameter of d of small straight length of nozzle (1)*；
The small a diameter of d of expansion segment opening of nozzle (1)1；
The straight cavity length of mixing chamber (3) is L2, a diameter of d3；
The inner osculum end distance to mixing chamber (3) contraction chamber of nozzle (1) is L1；
The suction of jet pump is X (absolute pressure MPa)；
The operating pressure of the jet pump is 0.5~0.7MPa,
0~0.2MPa of lift,
3 ± 10%m of flow3/h。
2. the structure of jet pump according to claim 1, it is characterised in that：
Adjustment circle (5) is set between the flange of the nozzle (1) end and the step of receiving chamber (2) stepped hole；
Locking nut (4) is set in the nozzle (1) outer end, and the appearance of the locking nut (4) is to enter with the receiving chamber (2)
The screw thread of intraoral wall kissing；
The interior table of the locking nut, from end to being the face of cylinder and arc circular conical surface inwards, the closing in diameter of arc circular conical surface
It is equal with the straight length diameter of nozzle (1)；
If the height of adjustment circle (5) is H, L is adjusted by the adjustment circle (5) for changing different height H1Length.
3. the structure of jet pump according to claim 1, it is characterised in that：
The d3 2/d* 2=1.9~2.1, got the small value when lift is high；Taken large values when lift is low,
The d1 3/d* 2=1.8~2.2, get the small value when suction is big, taken large values when suction is small,
The L1=(1.7~2) d3, get the small value when suction is big, taken large values when suction is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721001.4U CN207033856U (en) | 2017-06-20 | 2017-06-20 | A kind of structure of liquid conveying jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721001.4U CN207033856U (en) | 2017-06-20 | 2017-06-20 | A kind of structure of liquid conveying jet pump |
Publications (1)
| Publication Number | Publication Date |
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| CN207033856U true CN207033856U (en) | 2018-02-23 |
Family
ID=61468547
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| CN201720721001.4U Active CN207033856U (en) | 2017-06-20 | 2017-06-20 | A kind of structure of liquid conveying jet pump |
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| CN (1) | CN207033856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916129A (en) * | 2018-06-26 | 2018-11-30 | 湖南人文科技学院 | A kind of efficient self-vibration air lift mud pump |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
| CN113669305A (en) * | 2020-05-14 | 2021-11-19 | 中国石油化工股份有限公司 | Replaceable injection device |
-
2017
- 2017-06-20 CN CN201720721001.4U patent/CN207033856U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916129A (en) * | 2018-06-26 | 2018-11-30 | 湖南人文科技学院 | A kind of efficient self-vibration air lift mud pump |
| CN113669305A (en) * | 2020-05-14 | 2021-11-19 | 中国石油化工股份有限公司 | Replaceable injection device |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
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