CN106640790A - Hydraulic power assisted fluid pressure exchange device and fluid pressure exchange method thereof - Google Patents
Hydraulic power assisted fluid pressure exchange device and fluid pressure exchange method thereof Download PDFInfo
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- CN106640790A CN106640790A CN201510715704.1A CN201510715704A CN106640790A CN 106640790 A CN106640790 A CN 106640790A CN 201510715704 A CN201510715704 A CN 201510715704A CN 106640790 A CN106640790 A CN 106640790A
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Abstract
The invention discloses a hydraulic power assisted fluid pressure exchange device and a fluid pressure exchange method thereof. A hydraulic cylinder is adopted as mating power; through reciprocating motion of pistons in a cylinder body and ordered opening of each valve on the cylinder body, a fluid which is sucked into the cylinder body and requires to be pressurized is driven by a high-pressure fluid reflowed into the cylinder body on the other ends of the pistons, so that high-efficient transferring of pressure, i.e. pressure exchange is realized, and not only can the energy of the reflowed high-pressure fluid be sufficiently, efficiently and reasonably recycled, an energy conversion mode is more reasonable, but also multi-level hydraulic energy can be sufficiently recycled; the hydraulic cylinder is adopted as the mating power, so that the power loss can be further reduced, and an energy-saving effect is more obvious; a large-stroke cylinder body can be set according to the working condition requirement, so that the requirement on large recycle amount is met; and with a vertical design of the cylinder body, the mechanical wear of a relative movement parts can be reduced, and the service life of the device is prolonged.
Description
Technical field
The present invention relates to a kind of hydraulic booster fluid pressure switch and its fluid pressure exchange method.
Background technology
In the high pressure washing and absorption technique of the industries such as Chemical Manufacture, mainly using high-power plunger displacement pump and high-power multistage centrifugal
Pump carries out highly pressurised liquid conveying, and the highly pressurised liquid flowed back from wash mill is simply emitted, in order that washing dress
The potential energy for putting back into the highly pressurised liquid of stream is recycled, and the method for adopting at present is for centrifugal multistage pump multiple centrifugal pump and is equipped with hydraulic turbine device,
Water conservancy turbine installation be it is a kind of partially recycled fluid pressure potential energy and the energy saver of kinetic energy can be changed into, its principle is, except completing
Highly pressurised liquid conveying is outer, while reclaim the withdrawing fluid with elevated pressures entering after hydraulic turbine device, the power with motor
It is common to drive centrifugal multistage pump multiple centrifugal pump rotation work done, so as to reduce the power output of motor, reach energy-conservation purpose, the advantage of this device
It is simple structure, but weak point is, because water conservancy turbine installation is that first fluid pressure potential energy is used again for mechanical energy,
The recycling mode of energy is unreasonable, and this also determines that the organic efficiency of its energy is too low, rate of recovery highest in practical application
Have 30%, energy-saving effect is not obvious, yet there are no the more reasonable and extensive fluid pressure recycle device of adaptation,
And more direct effectively fluid pressure exchange method.To overcome above-mentioned deficiency, it is public that the present inventor discloses before this kind of patent
The number of opening is " the pressure of pressure-exchange pump of " pressure-exchange pump " and patent publication No. for CN104019065A of CN203098431U
Power exchange method ", is capable of achieving the direct conversion of highly pressurised liquid energy and is able to high efficiente callback utilization, but, this technical scheme because
Supporting power need to be made using low-power machine to drive crankshaft-link rod, then be connected with piston rod by crankshaft-link rod, so as to drive friendship
The piston movement changed in pump, therefore cost input is higher；Crankshaft rod structure is all difficult to realize the big of piston from volume to manufacturing cost
Stroke motion, limits the unit yield of highly pressurised liquid energy；The horizontal design of exchanging pump can accelerate the machine of relative movement part
Tool weares and teares；Callable multistage hydraulic still can fully not reclaimed (such as the flash liquid pressure energy of two grades of liquid) in some operations
Utilize.
The content of the invention
The purpose of the present invention is the deficiency for background technology, there is provided a kind of hydraulic booster fluid pressure switch for more optimizing
With fluid pressure exchange method, the highly pressurised liquid energy for making backflow obtains more abundant, efficient, rational recycling.
The technical scheme is that, the pressure of highly pressurised liquid and pressurized liquid is completed by hydraulic booster fluid pressure switch
Power is exchanged, and the hydraulic booster fluid pressure switch includes two kinds of single cylinder and compound cylinder body：
Single cylinder hydraulic booster fluid pressure switch include hydraulic jack, piston, cylinder body, lower liquid feed valve, lower tapping valve,
Upper liquid feed valve, upper tapping valve, piston is placed in cylinder body, and the upper end of cylinder body is fixed with liquid feed valve, upper tapping valve and hydraulic jack,
The oil cylinder axle connection piston of hydraulic jack, is terminated with lower liquid feed valve and lower tapping valve under cylinder body；
Compound cylinder hydraulic power-assisted fluid pressure switch include hydraulic jack, first stage piston, second piston, cylinder body, dividing plate,
Lower liquid feed valve, lower tapping valve, upper liquid feed valve, upper tapping valve, two grades of liquid liquid feed valves and two grades of liquid tapping valves, dividing plate is horizontally placed on cylinder body
Cylinder body is divided into upper and lower two cylinder chambers by middle part, and first stage piston is placed in lower cylinder chamber, and second piston is placed in cylinder chamber, the upper end of cylinder body
It is fixed with hydraulic jack and vent valve, the oil cylinder axle connection first stage piston of hydraulic jack and second piston, first stage piston and two grades of work
Plug is synchronized with the movement under the drive of oil cylinder axle, the outside of lower cylinder chamber be connected to respectively liquid feed valve, upper tapping valve, lower liquid feed valve and under
Tapping valve, the outer lower portion of upper cylinder chamber is connected to two grades of liquid liquid feed valves and two grades of liquid tapping valves；
The lower liquid feed valve and lower tapping valve are to be respectively used to the check valve that pressurized liquid enters, arranges, the upper liquid feed valve and upper row
Liquid valve is respectively used to reclaim highly pressurised liquid potential energy and pressure release discharge opeing.
The Room of A, B two, the appearance of two Room are can be considered in the single cylinder hydraulic booster fluid pressure switch, cylinder body by boundary of piston
Product can change with the movable of piston.It is the liquid for needing pressurized delivered in A rooms, it is sucked from lower liquid feed valve, under
Valve is discharged, and B rooms are the withdrawing fluids that the needs with elevated pressures recover energy, and it is entered from upper liquid feed valve, from upper discharge opeing
Valve is discharged, according to the characteristic of fluid pressure, it is known that having the liquid of elevated pressures in B rooms can press on the liquid of A rooms by piston
On, so as to be capable of achieving pressure efficient transfer be pressure-exchange, due to A, B chamber pressure at piston two ends it is in a basic balance, so with
Less kinetic energy can just make piston advances forward, reach the high efficiente callback of energy and the purpose of energy-conservation.Therefore, piston is dynamic
The direct drive of the existing hydraulic cylinder of power, the promotion for having backflow s again.
This device can adopt compound cylinder body according to being actually needed for multistage hydraulic energy is recycled, to realize that multistage hydraulic can (such as
The flashing pressure energy of two grades of liquid) whole high efficiente callbacks utilizations, being particularly suited for need to be using twice or repeatedly pressure-exchange could be thoroughly
The operating mode for recovering energy, the compound cylinder body is divided into upper and lower two cylinder chambers by boundary of dividing plate, with two pistons as boundary under cylinder chamber can
It is considered as the Room of A, B two, upper cylinder chamber and can be considered the Room of C, D two, the operating mode of the Room of A, B two is identical with single cylinder operating mode, except that,
Two grades of liquid liquid feed valves are opened under a certain operating mode, and two grades of liquid also enter C rooms and produce thrust to second piston simultaneously, and in a certain work
The lower two grades of liquid tapping valves of condition are opened, and two grades of liquid of C rooms are discharged, while vent valve is opened, the compressed gas in D rooms are discharged.
The operation of this device either single cylinder or compound cylinder body, by the way of multigroup (more than three cylinders) order parallel connection on time
Sort run, the size and number of cylinder body are not limited, so scientific and reasonable recovery ability various industries operating mode from big to small can be met.
Because the present invention is used again different from potential energy is first changed into into mechanical energy in background technology, it is not required to separately pressurize with force (forcing) pump
Conveying, but by the augmented thrust boosting piston of hydraulic cylinder, the liquid for making carrying energy is directly transferred energy into and needs boosting
Liquid on, also can meet carry energy liquid carry out pressure-exchange and the requirement of discharge of pressurizeing, in theory energy recovery rate is
99%, other energy consumptions are removed in practice, the rate of recovery can reach 95% or so, can be widely applied to the high pressure washing in chemical process
Or the energy regenerating field of technique such as absorb, and have the operating mode of the liquid that again pressurization in need is discharged with press liquid.
If the present invention is applied to the pressure-exchange between the rich solution and lean solution of high pressure washing absorption plant, its supporting hydraulic cylinder power consumption
Very little, hydraulic pressure cylinder diameter and impulse stroke can be selected according to the size of yield and piston stroke.As can be seen here, the present invention not only
Efficient energy regenerating and energy transfer are capable of achieving, energy conversion regime is more reasonable, and enables multistage hydraulic (such as two grades of liquid
Flash liquid pressure energy) also fully recycled；Again due to doing supporting power using hydraulic cylinder, first can further reduce
Kinetic equation loss, energy-saving effect becomes apparent from；Second big stroke cylinder body can be arranged according to working condition requirement, to meet the need of big yield
Will；The upright type of design of cylinder body can mitigate the mechanical wear of relative movement part, extension device service life.
Description of the drawings
Fig. 1 is single cylinder hydraulic booster fluid pressure switch and relevant device connection diagram；
Fig. 2 is single cylinder hydraulic booster fluid pressure switch course of work schematic diagram；
Fig. 3 is compound cylinder hydraulic power-assisted fluid pressure switch and relevant device connection diagram；
Fig. 4 is compound cylinder hydraulic power-assisted fluid pressure switch course of work schematic diagram.
In figure：First stage piston 1, cylinder body 2, lower liquid feed valve 3, lower tapping valve 4, upper liquid feed valve 5, upper tapping valve 6, scrubbing tower
7th, feed liquor house steward 8, liquid header 9, inlet 10, drain pipe 11, liquid outlet 12, hydraulic jack 13, dividing plate 14, two
Level 15, two grades of piston 16, two grades of liquid liquid feed valve liquid liquid valve 17, vent valve 18
Specific embodiment
Accompanying drawing is combined below by embodiment to elaborate the present invention.
Embodiment one：As shown in figure 1, the single cylinder hydraulic booster fluid pressure switch, cylinder body 2 is by valve and life
Respective lines in producing line are connected, and as a example by connecting the pipeline of high pressure scrubber 7, front liquid feed valve 3 connects feed liquor house steward 8, front
Tapping valve 4 connects liquid header 9, and the other end of liquid header 9 is connected with the inlet 10 of scrubbing tower 7；Afterwards liquid feed valve 5 is picked out
Liquid pipe 11, drain pipe 11 is connected with the liquid outlet 12 of scrubbing tower 7；Afterwards tapping valve 5 is connected with tapping line, is pressure release discharge opeing
Passage.
Pressure-exchange method comprises the following steps：
1st, shown in such as Fig. 2 (a), when under driving of the piston 1 in hydraulic jack 13, from lower end start to upper end run when, treat defeated
The liquid (lean solution) for sending is inhaled into A rooms from feed liquor house steward 8 by lower liquid feed valve 3, and with moving on piston 1, liquid is continuous
Ground suction A rooms；
2nd, shown in such as Fig. 2 (b), when piston 1 is run to upper end, A rooms volume is maximum, and now the upper tapping valve 6 of B rooms is in
Closed mode, upper liquid feed valve 5 is opened on time, and the highly pressurised liquid of backflow is entered by the liquid outlet 12 and drain pipe 11 of scrubbing tower 7
Enter B rooms；
3rd, shown in such as Fig. 2 (c), the highly pressurised liquid of backflow enter B rooms promote piston 1 to lower end run while by A rooms
Liquid pressing, until lower tapping valve 4 is opened, pressurized liquid is discharged by lower tapping valve 4, and by liquid header 9 from
Inlet 10 enters scrubbing tower 7；
4th, shown in such as Fig. 2 (d), when piston 1 is run to lower end, the upper liquid feed valve 5 of B rooms is closed on time, upper tapping valve 6 is pressed
Simultaneously moment pressure release starts discharge opeing to Shi Kaiqi, and a pressure-exchange working cycles are completed to this.
Embodiment two：As shown in Fig. 4 (a), the compound cylinder hydraulic power-assisted fluid pressure switch, including hydraulic jack
13rd, first stage piston 1, second piston 15, cylinder body 2, dividing plate 14, lower liquid feed valve 3, lower tapping valve 4, upper liquid feed valve 5, on
Tapping valve 6, dividing plate 14 be horizontally placed on the middle part of cylinder body 2 by cylinder body 2 points be upper and lower two cylinder chambers, first stage piston 1 is placed in lower cylinder chamber,
Second piston 15 is placed in cylinder chamber, and the upper end of cylinder body 2 is fixed with hydraulic jack 13 and vent valve 18, the oil of hydraulic jack 13
Cylinder shaft connects first stage piston 1 and second piston 15, and first stage piston 1 and second piston 15 are synchronized with the movement under the drive of oil cylinder axle,
The outside of lower cylinder chamber is connected to respectively liquid feed valve 5, upper tapping valve 6, lower liquid feed valve 3 and lower tapping valve 4, under the outside of upper cylinder chamber
Portion is connected to two grades of liquid liquid feed valves 16 and two grades of liquid tapping valves 17.
As shown in figure 3, cylinder body 2 is connected by valve with the respective lines on production line, still with connection high pressure scrubber 7
As a example by pipeline, lower liquid feed valve 3 connects feed liquor house steward 8, and lower tapping valve 4 connects liquid header 9, the other end and the washing of liquid header 9
The inlet 10 of tower 7 is connected；Upper liquid feed valve 5 picks out liquid pipe 11, and drain pipe 11 is connected with the liquid outlet 12 of scrubbing tower 7；
Upper tapping valve 6 is connected with tapping line, is pressure release apocenosis passage；Two grades of liquid liquid feed valves 16 connect flash distillation and come liquid pipe, two grades of liquid discharge opeings
Valve 17 connects flash distillation drain pipe.
The compound cylinder hydraulic power-assisted fluid pressure switch, being particularly suited for need to be using twice or repeatedly pressure-exchange ability
The operating mode for thoroughly recovering energy, such as propene carbonate decarbonization process and synthetic-ammonia transformation desulfurization operation are all provided with flash vessel, and rich solution is not
Once can all reduce pressure, but be depressurized to flashing pressure Jing flash distillations and flow out the two grades of liquid for reducing pressure again.With in propene carbonate technique
In as a example by, Fig. 4 gives compound cylinder hydraulic power-assisted fluid pressure switch course of work schematic diagram, concrete pressure-exchange side
Method comprises the following steps：
1st, shown in such as Fig. 4 (a), when first stage piston 1 and second piston 15 are under the driving of hydraulic jack 13, from respective cylinder chamber
Lower end when starting synchronous running up, liquid (lean solution) to be conveyed is inhaled into A from feed liquor house steward 8 by front liquid feed valve 3
Room, two grades of liquid liquid feed valves 16 of upper cylinder chamber are opened, and two after flash distillation grade liquid enters C rooms, and second piston 15 is produced upwards
Thrust, with moving on piston 1 and piston 15, liquid is continuously drawn into A rooms and is poured C rooms；
2nd, shown in such as Fig. 4 (b), when piston 1 and piston 15 are run to upper end, A rooms and C rooms volume are maximum, now B rooms
Upper tapping valve 6 is closed, and upper liquid feed valve 5 is opened on time, and two grades of liquid liquid feed valves 16 of C rooms are closed, two grades of liquid go out liquid
Valve 17 is synchronous to be opened, while the vent valve 18 in upper cylinder chamber is opened, bleeds off the compressed gas in D rooms, the highly pressurised liquid of backflow
B rooms are entered by the liquid outlet 12 and drain pipe 11 of scrubbing tower 7, two grades of liquid of C rooms start from two grades of liquid liquid valves 17 to reduce pressure
Discharge；
3rd, shown in such as Fig. 4 (c), the highly pressurised liquid of backflow enter B rooms promote first stage piston 1 to lower end run while by A rooms
In liquid pressing, until lower tapping valve 4 is opened, pressurized liquid is discharged by lower tapping valve 4, and by liquid header
9 enter scrubbing tower 7 from inlet 10, and two grades of liquid after reducing pressure in C rooms are discharged to next equipment under the promotion of second piston 15；
4th, shown in such as Fig. 4 (d), when first stage piston 1 and second piston 15 are run to lower end simultaneously, the upper liquid feed valve 5 of B rooms
Close on time, upper tapping valve 6 is opened and moment pressure release discharge opeing on time, two grades of liquid liquid valves 17 of C rooms are closed, two grades of liquid feed liquors
Valve 16 is opened, and two grades of liquid pressurize into C rooms, and a pressure-exchange working cycles are completed to this.
To improve energy recovery rate, the sectional area of oil cylinder axle should be less than the 5% of piston cross-section.
In the present invention, because of piston, two ends are isobaric when static, and now potential energy utilization rate is maximum, rate of recovery highest, when piston fortune
The rate of recovery can accordingly decline when scanning frequency degree exceedes certain value, therefore should not blindly improve the speed of service of piston.Meanwhile, it is determined that
The speed of service of piston is also contemplated that the ratio of all valves and each pipeline bore and the diameter of cylinder body 2 on cylinder body 2.
Two grades of liquid liquid feed valves 16 and two grades of liquid liquid valves 17 on the upper liquid feed valve 5 and upper tapping valve 6, compound cylinder body are adopted
Magnetic valve or hydraulic program valve, can arrange action control point according to the number of combinations of cylinder body 2 and different operating modes, such as can be at valve end
Corresponding senser element is installed to reach the purpose of control valve synchronization open and close, cylinder body is designed according to yield and actual condition
Number and cylinder body size and whether adopt compound cylinder body.
The present invention arranges diameter of cylinder and cylinder body length, cylinder body number and putting position according to technological requirement and site requirements.From Jing
Ji property considers that the present invention is particularly adapted to the energy regenerating of big device.Conveying liquid is measured and requires that too high operating mode can set pressure
Dashpot and regulating valve are meeting needs.In view of the cleannes of liquid, filter can be set at house steward with extension device and uses week
Phase.
The present invention does not consider the complete immiscible property of two kinds of liquid, is likely to result in minipool, but under general similar operating mode
Not there are problems that this, as two kinds of liquid can occur not applying to the present invention if harsh chemical reacts.
Claims (4)
1. two kinds of a kind of hydraulic booster fluid pressure switch, including single cylinder and compound cylinder body, is characterized in that, described compound
Cylinder hydraulic power-assisted fluid pressure switch, including hydraulic jack (13), first stage piston (1), second piston (15), cylinder
Body (2), dividing plate (14), lower liquid feed valve (3), lower tapping valve (4), upper liquid feed valve (5), upper tapping valve (6), dividing plate (14)
It is horizontally placed on cylinder body (2) middle part and cylinder body (2) is divided into into upper and lower two cylinder chambers, first stage piston (1) is placed in lower cylinder chamber, two grades of work
Plug (15) is placed in cylinder chamber, and the upper end of cylinder body (2) is fixed with hydraulic jack (13) and vent valve (18), hydraulic jack (13)
Oil cylinder axle connection first stage piston (1) and second piston (15), first stage piston (1) and second piston (15) are in oil cylinder axle
Be synchronized with the movement under drive, the outside of lower cylinder chamber be connected to respectively liquid feed valve (5), upper tapping valve (6), lower liquid feed valve (3) and under
Tapping valve (4), the outer lower portion of upper cylinder chamber is connected to two grades of liquid liquid feed valves (16) and two grades of liquid tapping valves (17).
2. hydraulic booster fluid pressure switch according to claim 1, is characterized in that, two grades of liquid liquid feed valves (16)
Connect flash distillation and carry out liquid pipe, two grades of liquid tapping valves (17) connect flash distillation drain pipe.
3. hydraulic booster fluid pressure switch according to claim 1, is characterized in that, either single cylinder or compound
The operation of cylinder body, the sort run on time by the way of multigroup (more than three cylinders) order parallel connection, the size and number of cylinder body are not limited.
4. a kind of fluid pressure exchange method realized by compound cylinder hydraulic power-assisted fluid pressure switch, is characterized in that,
Comprise the following steps：
A, when first stage piston (1) and second piston (15) are under the driving of hydraulic jack (13), from the lower end of respective cylinder chamber
When starting synchronous running up, liquid (lean solution) to be conveyed is from feed liquor house steward 8) A rooms are inhaled into by front liquid feed valve (3),
Two grades of liquid liquid feed valves (16) of upper cylinder chamber are opened, and two after flash distillation grade liquid enters C rooms, and second piston (15) is produced upwards
Thrust, with moving on piston (1) and piston (15), liquid is continuously drawn into A rooms and pours C rooms；
B, when piston (1) and piston (15) are run to upper end, A rooms and C rooms volume are maximum, now the upper tapping valve of B rooms
(6) it is closed, upper liquid feed valve (5) is opened on time, two grades of liquid liquid feed valves (16) closing of C rooms, two grades of liquid go out
Liquid valve (17) is synchronously opened, while the vent valve (18) in upper cylinder chamber is opened, bleeds off the compressed gas in D rooms, backflow
Highly pressurised liquid enters (B) room by the liquid outlet (12) and drain pipe (11) of scrubbing tower (7), and two grades of liquid of C rooms start
Discharge from two grades of liquid liquid valve (17) decompressions；
C, backflow highly pressurised liquid enter B rooms promote first stage piston (1) to lower end run while by the liquid pressing in A rooms,
Until lower tapping valve (4) is opened, pressurized liquid is discharged by lower tapping valve (4), and by liquid header (9) from entering
Liquid mouth (10) is discharged to next into scrubbing tower (7), two grades of liquid after reducing pressure in C rooms under the promotion of second piston (15)
Equipment；
D, when first stage piston (1) and second piston (15) are while when running to lower end, the upper liquid feed valve (5) of B rooms is closed on time
Close, upper tapping valve (6) is opened and moment pressure release discharge opeing on time, two grades of liquid liquid valves (17) of C rooms are closed, two grades of liquid feed liquors
Valve (16) is opened, and two grades of liquid pressurize into C rooms, and a pressure-exchange working cycles are completed to this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715704.1A CN106640790A (en) | 2015-10-30 | 2015-10-30 | Hydraulic power assisted fluid pressure exchange device and fluid pressure exchange method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715704.1A CN106640790A (en) | 2015-10-30 | 2015-10-30 | Hydraulic power assisted fluid pressure exchange device and fluid pressure exchange method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640790A true CN106640790A (en) | 2017-05-10 |
Family
ID=58831217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510715704.1A Withdrawn CN106640790A (en) | 2015-10-30 | 2015-10-30 | Hydraulic power assisted fluid pressure exchange device and fluid pressure exchange method thereof |
Country Status (1)
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| CN (1) | CN106640790A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012270A (en) * | 2018-09-28 | 2018-12-18 | 湖北省金秋农业高新技术股份有限公司 | A kind of Water soluble fertilizer matches fertile device |
| CN109424592A (en) * | 2017-08-31 | 2019-03-05 | 王建勋 | Fluid pressure alternation press pump and its pressure-exchange method |
| CN115107247A (en) * | 2022-06-24 | 2022-09-27 | 惠州市合泰智能科技有限公司 | External cleaning backflow device of injection molding feeding equipment and control method |
-
2015
- 2015-10-30 CN CN201510715704.1A patent/CN106640790A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424592A (en) * | 2017-08-31 | 2019-03-05 | 王建勋 | Fluid pressure alternation press pump and its pressure-exchange method |
| CN109012270A (en) * | 2018-09-28 | 2018-12-18 | 湖北省金秋农业高新技术股份有限公司 | A kind of Water soluble fertilizer matches fertile device |
| CN115107247A (en) * | 2022-06-24 | 2022-09-27 | 惠州市合泰智能科技有限公司 | External cleaning backflow device of injection molding feeding equipment and control method |
| CN115107247B (en) * | 2022-06-24 | 2024-01-30 | 惠州市合泰智能科技有限公司 | External cleaning reflux device of injection molding feeding equipment and control method |
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| PB01 | Publication | ||
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Application publication date: 20170510 |