CN102410169A - Pumping machinery and pumping system thereof - Google Patents
Pumping machinery and pumping system thereof Download PDFInfo
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- CN102410169A CN102410169A CN2011102758903A CN201110275890A CN102410169A CN 102410169 A CN102410169 A CN 102410169A CN 2011102758903 A CN2011102758903 A CN 2011102758903A CN 201110275890 A CN201110275890 A CN 201110275890A CN 102410169 A CN102410169 A CN 102410169A
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Abstract
The invention discloses a pumping system, which is characterized by comprising a first conveying cylinder (1), a second conveying cylinder (2), a third power cylinder (3) and a fourth power cylinder (4). A first piston (12) is in linkage connection with a third piston (32), and a second piston (22) is in linkage connection with a fourth piston (42); and a third rodless cavity (31) is communicated with a fourth rodless cavity (41), or a third rod cavity (33) is communicated with a fourth rod cavity (42). The pumping system also comprises a fluid medium box (5); and a first rodless cavity (11), a first rod cavity (13), a second rodless cavity (21) and a second rod cavity (23) are connected with a pipeline flowing from the fluid medium box (5) to the cavity in a unidirectional mode and are also connected with a pipeline flowing from the cavity to a fluid medium outlet (6) in the unidirectional mode. The pumping system can selectively pump water in a low-pressure high discharge rate mode or a high-pressure low discharge rate mode according to heights of floors. In addition, the invention also discloses pumping machinery comprising the pumping system.
Description
Technical field
The present invention relates to the pumping machine technical field, particularly a kind of pumping system.In addition, the invention still further relates to a kind of pumping machine that comprises this kind pumping system.
Background technique
Along with, high level or skyscraper fire accident take place frequently in recent years, and be also increasing for the demand of high-pressure water pump or ultrahigh pressure water pump.
Fire service pump of the prior art generally comprises two types, and a kind of is centrifugal type of water pump, and the restriction but this kind water pump is stressed can't be satisfied high-rise or high-rise fire-fighting fire extinguishing demand; Another kind is a plunger class water pump, but this kind water pump receives flow restriction, also can't satisfy high-rise or high-rise fire-fighting fire extinguishing demand.
In view of this; How a kind of pumping system is provided; This pumping system can improve the continuity and the sealability of pump water on the one hand, can select to carry out the big discharge capacity of low pressure or the little discharge capacity of high pressure is carried out pump water according to the height of floor on the other hand, is the problem that those skilled in the art need solution badly.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of pumping system; The structural design of this pumping system can improve the continuity and the sealability of pump water on the one hand, can select to carry out pump water with the mode of big discharge capacity of low pressure or the little discharge capacity of high pressure according to the height of floor on the other hand.In addition, another technical problem that will solve of the present invention is that a kind of pumping machine that comprises this kind pumping system is provided.
For solving the problems of the technologies described above, the present invention provides a kind of pumping system, comprises that being provided with first of first piston, first rodless cavity and first rod chamber carries cylinder, and is provided with the second conveying cylinder of second piston, second rodless cavity and second rod chamber; Said pumping system also comprises the 3rd ram that is provided with the 3rd piston, the 3rd rodless cavity and the 3rd rod chamber, and is provided with the 4th ram of the 4th piston, the 4th rodless cavity and the 4th rod chamber;
Said first piston and said the 3rd piston are connected, and said second piston and said the 4th piston are connected; Said the 3rd rodless cavity is communicated with said the 4th rodless cavity, or said the 3rd rod chamber and the connection of said the 4th rod chamber.
Said pumping system also comprises the flowing medium case; Said first rodless cavity, said first rod chamber, said second rodless cavity and said second rod chamber are connected with by said flowing medium packing list to the pipeline that flows to itself cavity, and these four cavitys also are connected with the pipeline by itself cavity single flow direction media outlet; Said first rodless cavity and said second rodless cavity also are communicated with said flowing medium case through first switch, or said first rod chamber and said second rod chamber also pass through first switch and be communicated with said flowing medium case.
Preferably, said first rodless cavity, said first rod chamber, said second rodless cavity and said second rod chamber are communicated with said flowing medium case through a medium intake line respectively, and are equipped with one-way valve on each said medium intake line; Said first rodless cavity, said first rod chamber, said second rodless cavity and said second rod chamber are communicated with said media outlet through a medium output pipe respectively, and are equipped with one-way valve on each said medium output pipe.
Preferably, said first switch is a two-position two-way solenoid valve.
Preferably, said first rodless cavity is communicated with through second switch with said second rod chamber, and said second rodless cavity is communicated with through the 3rd switch with said first rod chamber; Said first rodless cavity is communicated with said flowing medium case through a medium intake line that is provided with one-way valve respectively with said second rodless cavity, and these two cavitys are communicated with said media outlet through a medium output pipe that is provided with one-way valve respectively; Said first rod chamber and said second rod chamber also are communicated with said flowing medium case through first switch.
Preferably, said first rodless cavity is communicated with through second switch with said second rod chamber, and said second rodless cavity is communicated with through the 3rd switch with said first rod chamber; Said first rod chamber is communicated with said flowing medium case through a medium intake line that is provided with one-way valve respectively with said second rod chamber, and these two cavitys are communicated with said media outlet through a medium output pipe that is provided with one-way valve respectively; Said first rodless cavity and said second rodless cavity also are communicated with said flowing medium case through first switch.
Preferably, said second switch and said the 3rd switch are same switching element, and this switching element is a two-position four-way solenoid valve.
Preferably, said the 3rd rodless cavity is communicated with said the 4th rodless cavity, and said the 3rd rod chamber and said the 4th rod chamber are connected with oil pipe respectively.
Preferably, said the 3rd rod chamber is communicated with said the 4th rod chamber, and said the 3rd rodless cavity and said the 4th rodless cavity are connected with oil pipe respectively.
In addition, for solving the problems of the technologies described above, the present invention also provides a kind of pumping machine, and said pumping machine comprises above-mentioned each described pumping system.
Preferably, said pumping machine is fire-fighting vehicle-mounted pump or slurry pump.
In foregoing invention, also being communicated with said flowing medium case, reaching said the 3rd rod chamber through first switch with said first rod chamber and said second rod chamber is example with the structural design that said the 4th rod chamber is communicated with, and introduces technique effect of the present invention:
During work, when hanging down the floor fire extinguishing, first switch cuts out, and makes said first rodless cavity and said second rodless cavity be communicated with interruption with said flowing medium case.On this basis, the 3rd piston moves upward, because first piston and the 3rd piston be connected, thereby first piston moves upward, thereby the water that compresses in first rodless cavity flows to media outlet through unidirectional pipeline, and first rodless cavity is carried out pump water and operated; Simultaneously, the water in the flowing medium case flows to first rod chamber through unidirectional pipeline, and first rod chamber is carried out the suction operation.When the 3rd piston moves upward; Because the 3rd rodless cavity is communicated with the 4th rodless cavity, thereby the hydraulic oil in the rodless cavity is pressed in the 4th rodless cavity, thereby makes the 4th piston move downward; Because second piston and the 4th piston are connected; Thereby second piston also move downward, the water that compresses in second rod chamber flows to media outlet through unidirectional pipeline, second rod chamber is carried out the operation of pump water; Simultaneously, the water in the flowing medium case flows in second rodless cavity through unidirectional pipeline, and this second rodless cavity is carried out the suction operation.
In sum, in above-mentioned periodic process, when the 3rd piston moved upward, first rodless cavity and second rod chamber were carried out the operation of pump water, and first rod chamber and second rodless cavity are carried out the suction operation simultaneously; In next cycle, when the 4th piston moved upward, first rodless cavity and second rod chamber were carried out the suction operation, and first rod chamber and second rodless cavity are carried out the operation of pump water simultaneously; Thereby in each cycle, all have two cavitys to carry out the operation of pump water, thereby realized low floor being put out a fire with the mode of the big discharge capacity of low pressure.
When carrying out the fire extinguishing of high level or superelevation layer, first switch open makes said first rodless cavity and said second rodless cavity be communicated with said flowing medium case.On this basis, the 3rd piston moves upward, because first piston and the 3rd piston be connected, thereby first piston moves upward, thereby the water that compresses in first rodless cavity flows to media outlet through unidirectional pipeline, and first rodless cavity is carried out pump water and operated; Simultaneously, the water in the flowing medium case flows to first rod chamber through the unidirectional pipeline or first switch, the water inlet of first rod chamber.When the 3rd piston moved upward, owing to the 3rd rodless cavity is communicated with the 4th rodless cavity, thereby the hydraulic oil in the rodless cavity was pressed in the 4th rodless cavity; Thereby make the 4th piston move downward; Because second piston and the 4th piston are connected, thereby second piston also moves downward, but at this moment; Because second rod chamber is communicated with through first switch with the flowing medium case; Thereby second pressure and the pressure in the flowing medium case in the rod chamber be consistent, thereby this moment, second rod chamber can't carry out the operation of pump water, just water was pushed back in the flowing medium case through first switch; Simultaneously, the water in the flowing medium case flows in second rodless cavity through unidirectional pipeline, and this second rodless cavity is carried out the suction operation.
In sum, in above-mentioned periodic process, when the 3rd piston moved upward, first rodless cavity was carried out the operation of pump water, and second rodless cavity is carried out the suction operation simultaneously; In next cycle, when the 4th piston moved upward, first rodless cavity was carried out the suction operation, and second rodless cavity is carried out the operation of pump water; Thereby in each cycle, have only a cavity to carry out the operation of pump water, thereby realized high level or superelevation layer being put out a fire with the mode of the little discharge capacity of high pressure.
In addition, in the said structure design, no matter the 3rd piston moves upward, and still the 4th piston moves upward, and pumping system all exists corresponding cavity to carry out the operation of pump water, does not exist in the existing technology owing to have the cutout phenomenon that causes turn around time.Moreover, in the present invention, do not adopt the S valve, in various unidirectional pipelines, can adopt sealability preferably one-way valve carry out unidirectional conducting, thereby the sealability of system is better.
In sum, pumping system provided by the present invention can improve the continuity and the sealability of pump water on the one hand, can select to carry out pump water with the mode of big discharge capacity of low pressure or the little discharge capacity of high pressure according to the height of floor on the other hand.
Description of drawings
Fig. 1 is the structural representation of pumping system among first kind of embodiment of the present invention;
Fig. 2 is for having made the structural representation after the further change on the basis of pumping system in Fig. 1;
Fig. 3 is the structural representation of pumping system among second kind of embodiment of the present invention;
Fig. 4 is for having made the structural representation after the further change on the basis of pumping system in Fig. 3;
Fig. 5 is the structural representation of pumping system among the third embodiment of the present invention;
Fig. 6 is for having made the structural representation after the further change on the basis of pumping system in Fig. 5;
Fig. 7 is the structural representation of pumping system among the 4th kind of embodiment of the present invention;
Fig. 8 is for having made the structural representation after the further change on the basis of pumping system in Fig. 7.
Wherein, the corresponding relation between reference character and the component names is among Fig. 1 to Fig. 8:
1 first carries cylinder; 11 first rodless cavities; 12 first pistons; 13 first rod chambers;
2 second carry cylinder; 21 second rodless cavities; 22 second pistons; 23 second rod chambers;
3 the 3rd carry cylinder; 31 the 3rd rodless cavities; 32 the 3rd pistons; 33 the 3rd rod chambers;
4 the 4th carry cylinder; 41 the 4th rodless cavities; 42 the 4th pistons; 43 the 4th rod chambers;
5 flowing medium casees;
6 media outlets;
71 first switches; 72 two-position four-way solenoid valves;
81 medium intake lines; 82 medium output pipes; 83 one-way valves; 84 oil pipes.
Embodiment
Core of the present invention is for providing a kind of pumping system, and the structural design of this pumping system can improve the continuity and the sealability of pump water on the one hand, can select to carry out pump water with the mode of big discharge capacity of low pressure or the little discharge capacity of high pressure according to the height of floor on the other hand.In addition, another core of the present invention is that a kind of pumping machine that comprises this kind pumping system is provided.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, Fig. 1 is the structural representation of pumping system among first kind of embodiment of the present invention; Fig. 2 is for having made the structural representation after the further change on the basis of pumping system in Fig. 1; Fig. 3 is the structural representation of pumping system among second kind of embodiment of the present invention; Fig. 4 is for having made the structural representation after the further change on the basis of pumping system in Fig. 3.
In basic technology scheme of the present invention; As depicted in figs. 1 and 2; Pumping system comprises that first carries cylinder 1 and second to carry cylinder 2; First carries cylinder 1 to be provided with first piston 12, first rodless cavity 11 and first rod chamber 13, the second carries cylinders 2 to be provided with second piston 22, second rodless cavity 21 and second rod chamber 23; In addition; As depicted in figs. 1 and 2; Pumping system comprises that also the 3rd ram 3 and the 4th ram 4, the three rams 3 are provided with the 3rd piston 32, the 3rd rodless cavity 31 and the 3rd rod chamber 33, the four rams 4 and are provided with the 4th piston 42, the 4th rodless cavity 41 and the 4th rod chamber 43.
On the basis of said structure, as depicted in figs. 1 and 2, first piston 12 and the 3rd piston 32 are connected, and second piston 22 and the 4th piston 42 are connected; And as shown in Figure 2, the 3rd rodless cavity 31 is communicated with the 4th rodless cavity 41, and is perhaps as shown in Figure 1, and the 3rd rod chamber 33 and the 4th rod chamber 43 are communicated with.
As depicted in figs. 1 and 2; Pumping system also comprises flowing medium case 5; First rodless cavity 11, first rod chamber 13, second rodless cavity 21 and second rod chamber 23 are connected with the pipeline by itself cavity of flowing medium case 5 single flow direction, and these four cavitys also are connected with the pipeline by itself cavity single flow direction media outlet 6; And; Like Fig. 3 and shown in Figure 4, first rodless cavity 11 and second rodless cavity 21 also are communicated with flowing medium case 5 through first switch 71, perhaps; As depicted in figs. 1 and 2, first rod chamber 13 and second rod chamber 23 also are communicated with flowing medium case 5 through first switch 71.
On the basis of above-mentioned basic technology scheme, make concrete design, thereby can obtain first kind of embodiment of the present invention.
As shown in Figure 1; In first kind of embodiment; First rod chamber 13, first rodless cavity 11, second rodless cavity 21 and second rod chamber 23 are communicated with flowing medium case 5 through a medium intake line 81 respectively, and all offer one-way valve 83 on each medium intake line 81; First rodless cavity 11, first rod chamber 13, second rodless cavity 21 and second rod chamber 23 are communicated with media outlet 6 through a medium output pipe 82 respectively, and all offer one-way valve 83 on each medium output pipe 82.
And as shown in Figure 1 in this kind embodiment, first rod chamber 13 and second rod chamber 23 are communicated with flowing medium case 5 through first switch 71; The 3rd rod chamber 33 is communicated with the 4th rod chamber 43, and simultaneously, the 3rd rodless cavity 31 and the 4th rodless cavity 41 are connected with oil pipe 84.
Below introduce above-mentioned first kind of embodiment's technique effect:
During work; When hanging down the floor fire extinguishing; As shown in Figure 1, first switch 71 cuts out, and makes win rod chamber 13 and second rod chamber 23 and the be communicated with interruption of flowing medium case 5 through first switch 71; At this moment, the water in the flowing medium case can only flow to first rod chamber 13 and second rod chamber 23 through one-way valve 83.On this basis; The 3rd piston 32 moves upward, because first piston 12 and the 3rd piston 32 be connected, thereby first piston 22 moves upward; Thereby the water that compresses in first rodless cavity 11 flows to the 11 execution pump water operations of media outlet 6, the first rodless cavities through medium output pipe 82; Simultaneously, the water in the flowing medium case 5 flows to first rod chamber, 13, the first rod chambers 13 through medium intake line 81 and carries out the suction operation.When the 3rd piston 32 moves upward; Because the 3rd rod chamber 33 is communicated with the 4th rod chamber 43, thereby the hydraulic oil in the 3rd rod chamber 33 is pressed in the 4th rod chamber 43, thereby makes the 4th piston 42 move downward; Because second piston 22 and the 4th piston 42 are connected; Thereby second piston 22 also move downward, compress water in second rod chamber 23 and flow to media outlet 6, the second rod chambers 23 through medium output pipe 82 and carry out the operation of pump water; Simultaneously, the water in the flowing medium case 5 flows in second rodless cavity 21 through medium intake line 81, and this second rodless cavity 21 is carried out the suction operation.
In sum, in above-mentioned periodic process, when the 3rd piston 32 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the operation of pump water, and first rod chamber 13 and second rodless cavity 21 are carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the suction operation, and first rod chamber 13 and second rodless cavity 21 are carried out the operation of pump water simultaneously; Thereby in each cycle, all have two cavitys to carry out the operation of pump water, thereby realized low floor being put out a fire with the mode of the big discharge capacity of low pressure.
When carrying out the fire extinguishing of high level or superelevation layer, as shown in Figure 1, first switch 71 is opened, and makes the win rod chamber 13 and second rod chamber 23 and flowing medium case 5 through first switch, 71 diconnecteds.On this basis; The 3rd piston 32 moves upward, because first piston 12 and the 3rd piston 32 be connected, thereby first piston 12 moves upward; Thereby the water that compresses in first rodless cavity 11 flows to the 11 execution pump water operations of media outlet 6, the first rodless cavities through medium output pipe 82; Simultaneously, the water in the flowing medium case 5 through medium intake line 81 or/and first switch 71 flows to the water inlet of first rod chamber, 13, the first rod chambers 13.When the 3rd piston 32 moved upward, owing to the 3rd rod chamber 33 is communicated with the 4th rod chamber 43, thereby the hydraulic oil in the 3rd rod chamber 33 was pressed in the 4th rod chamber 43; Thereby make the 4th piston 42 move downward; Because second piston 22 and the 4th piston 42 are connected, thereby second piston 22 also moves downward, but at this moment; Because second rod chamber 23 is communicated with through first switch 71 with flowing medium case 5; Thereby second pressure and the pressure in the flowing medium case 5 in the rod chamber 23 be consistent, this moment, second rod chamber 23 can't carry out the operation of pump water, just water was pushed back in the flowing medium case 5 through first switch 71; Simultaneously, the water in the flowing medium case 5 flows in second rodless cavity 21 through medium intake line 81, and this second rodless cavity 21 is carried out the suction operation.
In sum, in above-mentioned periodic process, when the 3rd piston 32 moved upward, first rodless cavity 11 was carried out the operation of pump water, and second rodless cavity 21 is carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, first rodless cavity 11 was carried out the suction operation, and second rodless cavity 21 is carried out the operation of pump water; Thereby in each cycle, have only a cavity to carry out the operation of pump water, thereby realized high level or superelevation layer being put out a fire with the mode of the little discharge capacity of high pressure.
Need to prove, in above-mentioned first kind of embodiment, can make further change.Such as, as shown in Figure 2, can be communicated with the 4th rodless cavity 41 by the 3rd rodless cavity 31, the 3rd rod chamber 33 and the 4th rod chamber 43 are connected with oil pipe 84 simultaneously.Obviously, this kind structural design also can the technical solution problem, realizes goal of the invention.
In above-mentioned basic technology scheme, can also make concrete design, thereby obtain second kind of embodiment of the present invention.Second kind of embodiment and first kind of embodiment's structure is basic identical, and different is that as shown in Figure 3 in this second kind of embodiment, first rodless cavity 11 and second rodless cavity 21 are communicated with flowing medium case 5 through first switch 71.
In this second kind of embodiment, during work, when carrying out the low layer fire extinguishing; First switch 71 breaks off; When the 3rd piston 32 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the operation of pump water, and first rod chamber 13 and second rodless cavity 21 are carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the suction operation, and first rod chamber 13 and second rodless cavity 21 are carried out the operation of pump water simultaneously.When carrying out the fire extinguishing of high level or superelevation layer, first switch 71 is opened, and when the 3rd piston 32 moved upward, second rod chamber 23 was carried out the operation of pump water, and first rod chamber 13 is carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, second rod chamber 23 was carried out the suction operation, and first rod chamber 13 is carried out the operation of pump water.
Need to prove, in above-mentioned second kind of embodiment, can make further change.Such as, as shown in Figure 4, can be communicated with the 4th rodless cavity 41 by the 3rd rodless cavity 31, the 3rd rod chamber 33 and the 4th rod chamber 43 are connected with oil pipe 84 simultaneously.Obviously, this kind structural design also can the technical solution problem, realizes goal of the invention.
In addition, on the basis of above-mentioned basic technology scheme, concrete design be can also make, thereby the third embodiment of the present invention and the 4th kind of embodiment obtained.Particularly, please refer to Fig. 5, Fig. 6, Fig. 7 and Fig. 8, Fig. 5 is the structural representation of pumping system among the third embodiment of the present invention; Fig. 6 is for having made the structural representation after the further change on the basis of pumping system in Fig. 5; Fig. 7 is the structural representation of pumping system among the 4th kind of embodiment of the present invention; Fig. 8 is for having made the structural representation after the further change on the basis of pumping system in Fig. 7.
As shown in Figure 5, in the third embodiment, first rodless cavity 11 is communicated with through second switch with second rod chamber 23, and second rodless cavity 21 is communicated with through the 3rd switch with first rod chamber 13; First rodless cavity 11 is communicated with flowing medium case 5 through a medium intake line 81 that is provided with one-way valve 83 respectively with second rodless cavity 21, and these two cavitys are communicated with media outlet 6 through a medium output pipe 82 that is provided with one-way valve 83 respectively; First rod chamber 13 and second rod chamber 23 also are communicated with flowing medium case 5 through first switch 71.
As shown in Figure 7, in the 4th kind of embodiment, first rodless cavity 11 is communicated with through second switch with second rod chamber 23, and second rodless cavity 21 is communicated with through the 3rd switch with first rod chamber 13; First rod chamber 13 is communicated with flowing medium case 5 through a medium intake line 81 that is provided with one-way valve 83 respectively with second rod chamber 23, and these two cavitys are communicated with media outlet 6 through a medium output pipe 82 that is provided with one-way valve 83 respectively; First rodless cavity 11 and second rodless cavity 21 also are communicated with flowing medium case 5 through first switch 71.
In above-mentioned two kinds of embodiments, like Fig. 5 and shown in Figure 7, second switch and the 3rd switch are same switching element, and this switching element is a two-position four-way solenoid valve 72.
Below be that example is introduced technique effect with the pumping system among the third embodiment:
During work; When hanging down the floor fire extinguishing, as shown in Figure 5, two-position four-way solenoid valve 72 is opened; First switch 71 breaks off; The rodless cavity 11 of winning is communicated with second rod chamber 23, and second rodless cavity 21 is communicated with first rod chamber 13, makes win rod chamber 13 and second rod chamber 23 interrupt being communicated with flowing medium case 5 simultaneously.On this basis, the 3rd piston 32 moves upward, and drive first piston 12 and move upward, thereby the water that compresses in first rodless cavity 11 flows to the 11 execution pump water operations of media outlet 6, the first rodless cavities through medium output pipe 82; Simultaneously, the 3rd piston 32 moves upward, because the 3rd rod chamber 33 is communicated with the 4th rod chamber 43; Thereby the 3rd hydraulic oil in the rod chamber 33 be pressed in the 4th rod chamber 43; Drive the 4th piston 42 and move downward, and then the 4th piston 42 drives second piston 22 and move downward, thereby the water in this moment second rod chamber 23 gets in first rodless cavity 11 through two-position four-way solenoid valve 72; And then flow to media outlet 6, the second rod chambers 23 through medium output pipe 82 and carry out the operation of pump water.In addition; When first piston 12 moves upward; Second piston 22 moves downward; Water in the flowing medium case 5 gets in second rodless cavity 21 through medium intake line 81, and then can get in first rod chamber 13 through two-position four-way solenoid valve 72, thereby first rod chamber 13 and the 21 execution suction operations of second rodless cavity.
In sum, in above-mentioned periodic process, when the 3rd piston 32 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the operation of pump water, and first rod chamber 13 and second rodless cavity 21 are carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, first rodless cavity 11 and second rod chamber 23 were carried out the suction operation, and first rod chamber 13 and second rodless cavity 21 are carried out the operation of pump water simultaneously; Thereby in each cycle, all have two cavitys to carry out the operation of pump water, thereby realized low floor being put out a fire with the mode of the big discharge capacity of low pressure.
When carrying out the fire extinguishing of high level or superelevation layer; As shown in Figure 5; Two-position four-way solenoid valve 72 breaks off, and first switch 71 is opened, and makes win rodless cavity 11 and 23 interruptions of second rod chamber; Second rodless cavity 21 and first rod chamber 13 interrupt, and win rod chamber 13 and second rod chamber 23 are communicated with flowing medium case 5.On this basis, the 3rd piston 32 moves upward, and drive first piston 12 and move upward, thereby the water that compresses in first rodless cavity 11 flows to the 11 execution pump water operations of media outlet 6, the first rodless cavities through medium output pipe 82; Simultaneously, first rod chamber 13 is through 71 water inlets of first switch.In addition, the 3rd piston 32 moves upward, and drives the 4th piston 42 and moves downward; And then the 4th piston 42 drives second piston 22 moves downward; Because this moment, second rod chamber 23 was communicated with flowing medium case 5, thereby can not carry out the operation of pump water with in the hydraulic pressure reflux medium box 5; Simultaneously, second rodless cavity 21 is carried out the suction operation through medium intake line 81.
In sum, in above-mentioned periodic process, when the 3rd piston 32 moved upward, first rodless cavity 11 was carried out the operation of pump water, and second rodless cavity 21 is carried out the suction operation simultaneously; In next cycle, when the 4th piston 42 moved upward, first rodless cavity 11 was carried out the suction operation, and second rodless cavity 21 is carried out the operation of pump water; Thereby in each cycle, have only a cavity to carry out the operation of pump water, thereby realized high level or superelevation layer being put out a fire with the mode of the little discharge capacity of high pressure.
In the 4th kind of embodiment, its working procedure and above-mentioned basic identical, different is that in the 4th kind of embodiment, when the 3rd piston 32 moved upward, second rod chamber 23 was carried out the operation of pump water, first rod chamber, 13 execution suction operations simultaneously; In next cycle, when the 4th piston 42 moved upward, second rod chamber 23 was carried out the suction operation, and first rod chamber 13 is carried out the operation of pump water.
Need to prove, in above-mentioned the third embodiment and the 4th kind of embodiment, can make further change.Such as, like Fig. 6 and shown in Figure 8, can being communicated with the 4th rodless cavity 41 by the 3rd rodless cavity 31, the 3rd rod chamber 33 and the 4th rod chamber 43 are connected with oil pipe 84 simultaneously.Obviously, this kind structural design also can the technical solution problem, realizes goal of the invention.
In addition; Also need to prove; In first kind and second kind of embodiment; To shown in Figure 4, first switch 71 be a two-position two-way solenoid valve like Fig. 1, and first rodless cavity 11, second rodless cavity 21, first rod chamber 13 and second rod chamber 23 are communicated with flowing medium case 5 through a two-position two-way solenoid valve respectively or interrupt connection.And the third with the 4th kind of embodiment in; Extremely shown in Figure 8 like Fig. 5; First switch 71 is a two-position four-way solenoid valve, first rodless cavity 11 and second rodless cavity 21, and first rod chamber 13 and all shared two-position four-way solenoid valve of second rod chamber 23 be communicated with flowing medium case 5 or interrupt connection.
Need to prove that the medium in the pumping system of the present invention is not limited to water, be not limited to carry out the fire-fighting fire extinguishing operation, can also be other flowing mediums, such as mud or concrete etc.
In addition, the present invention also provides a kind of pumping machine, and this kind pumping machine comprises the pumping system among above-mentioned any embodiment; Particularly, this pumping machine can be fire-fighting vehicle-mounted pump or slurry pump; Other parts of pumping machine can be with reference to existing technology, and this paper no longer launches.
More than pumping machine provided by the present invention and pumping system thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. pumping system; It is characterized in that; Comprise that being provided with first of first piston (12), first rodless cavity (11) and first rod chamber (13) carries cylinder (1), and be provided with the second conveying cylinder (2) of second piston (22), second rodless cavity (21) and second rod chamber (23); Said pumping system also comprises the 3rd ram (3) that is provided with the 3rd piston (32), the 3rd rodless cavity (31) and the 3rd rod chamber (33), and is provided with the 4th ram (4) of the 4th piston (42), the 4th rodless cavity (41) and the 4th rod chamber (43);
Said first piston (12) is connected with said the 3rd piston (32), and said second piston (22) is connected with said the 4th piston (42); Said the 3rd rodless cavity (31) is communicated with said the 4th rodless cavity (41), or said the 3rd rod chamber (33) and said the 4th rod chamber (42) connection.
Said pumping system also comprises flowing medium case (5); Said first rodless cavity (11), said first rod chamber (13), said second rodless cavity (21) and said second rod chamber (23) are connected with the pipeline by itself cavity of said flowing medium case (5) single flow direction, and these four cavitys also are connected with the pipeline by itself cavity single flow direction media outlet (6); Said first rodless cavity (11) and said second rodless cavity (21) also are communicated with said flowing medium case (5) through first switch (71), or said first rod chamber (13) and said second rod chamber (23) also pass through first switch (71) and be communicated with said flowing medium case (5).
2. pumping system as claimed in claim 1; It is characterized in that; Said first rodless cavity (11), said first rod chamber (13), said second rodless cavity (21) and said second rod chamber (23) are communicated with said flowing medium case (5) through a medium intake line (81) respectively, and are equipped with one-way valve (83) on each said medium intake line (81); Said first rodless cavity (11), said first rod chamber (13), said second rodless cavity (21) and said second rod chamber (23) are communicated with said media outlet (6) through a medium output pipe (82) respectively, and are equipped with one-way valve (83) on each said medium output pipe (82).
3. according to claim 1 or claim 2 pumping system is characterized in that said first switch (71) is a two-position two-way solenoid valve.
4. pumping system as claimed in claim 1 is characterized in that, said first rodless cavity (11) is communicated with through second switch with said second rod chamber (23), and said second rodless cavity (21) is communicated with through the 3rd switch with said first rod chamber (13); Said first rodless cavity (11) is communicated with said flowing medium case (5) through a medium intake line (81) that is provided with one-way valve (83) respectively with said second rodless cavity (21), and these two cavitys are communicated with said media outlet (6) through a medium output pipe (82) that is provided with one-way valve (83) respectively; Said first rod chamber (13) and said second rod chamber (23) also are communicated with said flowing medium case (5) through first switch (71).
5. pumping system as claimed in claim 1 is characterized in that, said first rodless cavity (11) is communicated with through second switch with said second rod chamber (23), and said second rodless cavity (21) is communicated with through the 3rd switch with said first rod chamber (13); Said first rod chamber (13) is communicated with said flowing medium case (5) through a medium intake line (81) that is provided with one-way valve (83) respectively with said second rod chamber (23), and these two cavitys are communicated with said media outlet (6) through a medium output pipe (82) that is provided with one-way valve (83) respectively; Said first rodless cavity (11) and said second rodless cavity (21) also are communicated with said flowing medium case (5) through first switch (71).
6. like claim 4 or 5 described pumping systems, it is characterized in that said second switch and said the 3rd switch are same switching element, and this switching element is two-position four-way solenoid valve (72).
7. like each described pumping system of claim 2 to 6, it is characterized in that said the 3rd rodless cavity (31) is communicated with said the 4th rodless cavity (41), and said the 3rd rod chamber (33) and said the 4th rod chamber (43) are connected with oil pipe (84) respectively.
8. like each described pumping system of claim 2 to 6, it is characterized in that said the 3rd rod chamber (33) is communicated with said the 4th rod chamber (43), and said the 3rd rodless cavity (31) and said the 4th rodless cavity (41) are connected with oil pipe (84) respectively.
9. a pumping machine is characterized in that, said pumping machine comprises like each described pumping system of claim 1 to 8.
10. pumping machine as claimed in claim 9 is characterized in that, said pumping machine is fire-fighting vehicle-mounted pump or slurry pump.
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| CN201110275890.3A CN102410169B (en) | 2011-09-16 | 2011-09-16 | Pumping machinery and pumping system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110275890.3A CN102410169B (en) | 2011-09-16 | 2011-09-16 | Pumping machinery and pumping system thereof |
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| CN102410169A true CN102410169A (en) | 2012-04-11 |
| CN102410169B CN102410169B (en) | 2014-11-19 |
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| CN110668385A (en) * | 2019-10-09 | 2020-01-10 | 潘显敏 | A mud propelling movement subassembly for lake desilting |
| CN112855483A (en) * | 2021-01-04 | 2021-05-28 | 中联重科股份有限公司 | Pumping equipment and control device and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN102410169B (en) | 2014-11-19 |
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