CN86108095A

CN86108095A - Combined complex pumping plant

Info

Publication number: CN86108095A
Application number: CN198686108095A
Authority: CN
Inventors: 保谷武司
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-12-05
Filing date: 1986-11-27
Publication date: 1987-06-10
Also published as: KR870005885A; AU6612586A; NO864871L; JPS62131987A; EP0249655A1; GB2183739A; NO864871D0; GB8628997D0; BR8605966A

Abstract

The present invention relates to the device that constituted by many pumps, each pump comprises a pump housing, and one is configured in and has barrier film that U-shaped cross-section free expansion within it shrinks in the pump housing and is used for forming the pressure chamber that is communicated with liquid pressure source and has the chamber of pumping for row mouthful.One inserts that the pump housing can slide within it and at the bar of its free and bearing barrier film, further develops to have the combined complex pumping plant that is connected to a plurality of pump housings on the framework.Each bar inserts these pump housings and can slide within it and can be bearing on the single connecting rod around axle via pin.These bars move forward and backward with predetermined phase difference.

Description

Combined complex pumping plant

The invention belongs to the technical field of high-pressure service pump type pumping device structure, be used under pressure industrial discarded mud delivered in the equipment for separating liquid from solid such as press filtration etc. and go.

As everyone knows, existing various types of development and the liquid pump that has improved, high-pressure service pump also comprises a kind of so-called diaphragm type pump of present use as shown in FIG. 6 except that the plug type pump.As shown in Figure 5, such pump has a barrier film 2 in the pump housing 1, and barrier film 2 limits a pressure chamber 3 and and pumps chamber 4 in the pump housing 1, and this pump also is used as high-pressure service pump, improves the compressive force of pumping the chamber with being input to the pressure of pressure chamber.

Yet in this diaphragm type pump, because of stroke is little, so the output energy level of barrier film 2 is restricted, and considers these, research and development a kind of that in claimant's previous patent application, disclosed and as the application in superelevation die mould pump shown in Figure 7.In this pump development and application following new technology, promptly in the pump housing 1, have the flexible rubber barrier film 2 of a telescopic U-shaped cross-section ', and limit a pressure chamber 3 and within it and pump chamber 4, and barrier film 2 ' be bearing in and keeping on the end of the bar 5 that the barrier film of sealing state moves together vertically, thereby can obtain a big ouput force that is applied on the mud with a little compressive force.

The advantage of this hyperpressure pump is to obtain high like this delivery pressure, may cause that working liquid body oil leaks from each part that is the pump of sealing state connection of the pump housing.Yet this pump according to this art designs manufacturing newly developed still exists some to want improved problem.

One of them problem is that the capacity of pumping the chamber in making the pump housing is big, and then working stroke is big, thereby the operation period is long, therefore makes the operational efficiency step-down.Just not saying the stationarity of exporting during discontinuity treatment mud can not obtain exporting stationarity when handling continuously.At this problem, might adopt a kind of multiplex pump device, and make its operation phase shifting, thereby can obtain the output stationarity at outlet side.Yet in order to keep the operation phase place of these pump-units, need the very complicated controller of a kind of structure, and make maintenance, check and repair these pump-units trouble that becomes, this makes manufacture cost and maintenance expenses increase.

The objective of the invention is to provide a solution that these is included in the technical problem in the high rear pump device of making based on above-mentioned conventional art, this pump-unit has the flexible diaphragm of a U type cross section, with a kind of fabulous combined complex pumping plant is provided, this pump has some required number pump-units mechanically coupled together mutually, can control easily like this, thereby make the output in each cycle of a pump-unit steady, can carry out a kind of the highest output operation that can control easily, and the various industrial fields of using pressure techniques are made contributions.

Simple description to accompanying drawing.

Fig. 1 to 5 illustrates embodiments of the invention, wherein

Fig. 1 is total schematic configuration diagram of an embodiment.

Fig. 2 is that another embodiment's several pumps are arranged schematic representation.

Fig. 3,4,5 another embodiments of diagram, wherein

Fig. 3 is the view of connecting rod.

Fig. 4 is the side view of combined complex pumping plant.

Fig. 5 is the plan of the pump among Fig. 4,

Fig. 6 is a kind of schematic representation of conventional diaphragm pump,

Fig. 7 is the drawing in side sectional elevation of conventional pump device,

One embodiment of the invention are described with reference to Fig. 1 to 5.

The part of present embodiment, because of its shape with the same at these parts of the device of Fig. 6 in 7, and represent with identical reference number.

In the embodiment shown in fig. 1,6 expressions, one combined complex pumping plant also is main points of the present invention.In the present embodiment, device is a double pumping, and the wherein a pair of pump housing 1,1 is fixed on the

framework

7,7, is for the pump housing is stretched each other abreast.The shape of each pump housing 1 and this quasi-tradition pump housing are basic identical.The pump housing 1 contain a cross section be the U type rubber every mould 2 ', this barrier film 2 ' in the pump housing 1 can be mainly expands and shrinks along longitudinal direction, and can unload and replace with another.In the pump housing 1 by barrier film 2 ' be separated into pressure chamber 3 and be positioned at pressure chamber's 3 opposite sides pump chamber 4.Barrier film 2 ' by independent partly be fixed at the center of crossing by vulcanizing treatment a bar 5 ' end, bar 5 ' can pass a sealed bearing 8 to slide, sealed bearing 8 is positioned at an a pair of vertically disposed wall of the pump housing 1, like this, even when barrier film 2 ' a be in retracted position, it also can keep being bearing in the there.Inject the bar 5 of the pump housing 1,1 ' be and be connected to the two ends of connecting rod 10 via groove by pin, connecting rod 10 by a pin around axle be bearing on the carriage 9, carriage 9 is fixed on the framework 7.So these two bars 5 ', 5 ' the forward and backward cycle of motion be phase shifting with 180 °, thereby barrier film 2 ', also there are 180 ° phase difference in 2 ' the expansion in the pump housing 1,1 and the cycle of contraction.

On the vertical wall 7 of above-mentioned each pump housing 1, have one for row's mouth 11, this mouthful of footpath 11, working liquid body oil enters

pressure chamber

3 and 3 arranges from the pressure chamber, and via a confession comb road 12, one three-way solenoid valve 13, one solution feed pump 14 and an emptying pump 14 ' be communicated with an oil tank 15, so that supply with and the input service liquid oils to pressure chamber 3 with predetermined high pressure.

About pumping chamber 4 in the pump housing 1, another wall 7 ' on have supplying mouth 16 and floss hole 17 for processed liquid.Be communicated with via a pipeline and slurry tank 19 used high-pressure service pumps 26 for mouth 16, this pipeline is furnished with an one-way valve 18, and on three-way solenoid valve 21 punishment roads.Each

floss hole

17,17 via an one-way valve 18 ' be connected to three-way solenoid valve 21 ', thereby be connected to a pressure filter 22, the processing equipment the treatment phase that this being next.

Since the barrier film 2 in the pump housing 1 ' by 180 ° phase difference actions, with three-way valve 21,21 ' can make to infeed and pump chamber 4 from the mud of slurry tank 19, and carry out on the contrary and selectively from discharging mud here, thereby alternately carrying out supplying with and entering the pressure filter 22 going from discharging here from the mud of slurry tank 19, so pump pump that to do as a whole be stably.

23 is a control gear, by wire-control servovalve 13 and high-pressure service pump 14 ', 20, and by preset program automatically control three-way valve 21,21 ' operation.

When 23 work of the control gear in the combinations thereof formula combined pump 6, be positioned at high-pressure service pump 14 work of input side.Because during this time, solenoid valve 13 is in the original state shown in the figure, and working liquid body oil is under the high pressure conditions and imports the pressure chamber 3 interior (top of figure) of the pump housings 1 via liquid supply port 11.

Embodiment also can be designed to be used in for the solenoid valve 12 that is provided with on the comb road 12 servovalve 13 is opened and closed, and is connected electrically to control gear 23 and gets on.

Thereby the oil of importing the pressure chamber 3 in the pump housing causes barrier film 2 ' expansion, makes its end be fixed to the bar 5 of barrier film 2 ' get on ' advance to the right-hand of figure in the pump housing 1.Along with, be bearing in connecting rod 10 on the carriage 9 that is fixed on the framework 7 and turn to right-hand among the figure.Therefore, the bar 5 in another pump housing 1 ' return left, just to the movement outside of housing 1, the barrier film 2 in another pump housing 1 ' present compressive state like this.Thereby, the working oil in the pressure chamber 3 of this pump housing 1 from floss hole 11,11 via for comb road 12, servovalve 13 and fluid discharge pump 13 ' get back in the oil tank 15 and go.

Pumping in the chamber 4 of barrier film 2 ' expansion, the mud in it is under high pressure by one-way valve 18 ' and three-way valve 21 ' enter in the pressure filter 22, three-way valve 21 ' switched to through control gear 23 side of the top pump housing 1.

On the other hand, mud infeeds and pumps chamber 4 via being positioned at three-way valve 21 below the high-pressure service pump 20 and one-way valve 18 and supplying mouth 16 from slurry tank 19, and three-way valve 21 has been switched to a side of the bottom pump housing 1.During this period, pump indoor mud and flow out, be not sent in the pressure filter 22 and go from floss hole 17 by one-way valve 18 ' can prevent is identical.

Therefore in the pump housing of bottom, because the push-pull effect of the absorption vacuum of a kind of positive displacement pump 14 ' generations and be positioned at the pressure that the high-pressure service pump 20 of slurry tank 19 sides produces, by barrier film 2 ' make working oil turn back to oil tank 15 with make mud input pump chamber 4.

In two pump housings 1,1, be fixed to

barrier film

2 ', 2 ' on bar 5 ', 5 ' be mechanically connected to connecting rod 10, and forward and motion backward with 180 ° phase difference.Thereby pump compressed exhaust and the supply of carrying out mud in the

chamber

4,4 two of the different pump housings immediately, and in the pressure chamber 3 of the different pump housings, carry out the supercharging supply and the compressed exhaust of working oil simultaneously.Owing to be connected to the connecting rod 10 that bar 5 gets on,, can not upset this phase difference though reciprocally carry out these operations.

In a total travel, carrying out infeeding pressure filter 22, and in another pump housing 1, carrying out the decompression of working oil and infeeding of discharging and mud owing to infeeding of the working oil in the pump housing 1 on top makes mud thereby be compressed.When the end of these operation arrival strokes, can be detected by a predetermined sensitive switch, handle the operation of a switch with control gear 23, thereby servovalve 13 and solenoid valve 21 are converted.Its result make barrier film 2 in top and the lower curtate pump housing 1,1 ', 2 ' expansion and shrink and carry out on the contrary.In other words, the barrier film 2 in the top pump housing 1 ' be switched to retraction stroke, and the barrier film 2 in the lower curtate pump housing 1 ' forward expansion stroke to, thus carrying out the action opposite with above-mentioned action, and keep providing mud to pressure filter 22 continuously with high pressure.

Therefore, consequently the high pressure of mud to infeed pressure filter 22 be to carry out with the continuous-flow process.

If carry out such process repeatedly, just make high-pressure slurry infeed pressure filter 22 and carried out continuously.And so continuous operation period is undertaken by connecting rod 10, can't cause barrier film 2 in housing 1,1 ', 2 ' go up any phase differences that occur.

Yet, because the barrier film 2 in the housing 1,1 ', 2 ' expansion and contraction undertaken by connecting rod 10, therefore each repeatedly under the pressure in the cycle discharging mud the constant delivery pressure of one cardinal principle is arranged.This just guarantees that device evenly and stably moves in the cycle repeatedly at each, and does not have the fluctuation of delivery pressure.

The above embodiments are double pumpings.The embodiment who represents among Fig. 2 is a kind of combined type quadruple combined pump, it by represent right-hand part part of figure with the similar double pumping of above-mentioned double pumping, one represents left side part in the drawings, and by forming with a pair of opposite pump of right side pump same form, one inserts the integral stem 5 in the top pump 1,1 "; one inserts lower curtate pump 1; integral stem 5 in 1 ", and one these two bars 5 ", the 5 " connecting rods 10 that link together.In the pump of this mode, can in each cycle, carry out mud sent in the pressure filter 22 under elevated pressures and go, and the operation of these four pumps that combine can be carried out in the predetermined working stroke of stable maintenance one.

Fig. 3, an embodiment of expression is a kind of combined complex pumping plant that can connect the pump of a lot of numbers in theory in 4,5.One connecting rod 10 ' by having one and via having worn crank 24,24 on the axle ... the bent axle of several axle journals form crank 24,24 ... be the axle of being mentioned to be stretched out on rectangular each plane and forming, and have each predetermined phase difference.In the embodiment of this form, insert the bar 1,1 in each pump housing ... be connected on the crank 24 via each tie point shown in Figure 4, and many pumps can be arranged in each plane with predetermined phase difference as shown in Figure 5.Thereby selectively carry out mud is infeeded each pump and discharge mud in each pump with the alternative form of keeping the designed phase difference.Therefore, can very stably carry out mud is infeeded pressure filter 22 by the system that flows.And, be enough to guarantee mud the pumping under high pressure in each process because the high pressure of each pump is pumped effect.

In the embodiment of this form, the design of each pump has servovalve, and they can be via control gear independent translation separately like this.

In this embodiment, this combined pump be designed so that all pumps radially be connected on the same level as shown in Figure 5 bent axle 10 ' crank on be effective.

Certainly, the embodiments of the invention mode be not limited to described above these. It is possible adopting various other forms, wherein,, and an electromagnetic clutch is inserted between connecting rod and the bar impact that perhaps occurs for the end that is absorbed between connecting rod and the bar at an one stroke and damping spring is set in order to control servo valve by bar via limit switch.

Of the present inventionly pump the mud that material is not limited to use in the above-described embodiments.The present invention also can be applied to high pressure and pump and perfusion fluid medicine and liquid food, operates from a pump-unit water-spraying for fire extinguishing, is carrying out with liquid in the operation of working angles, from a device mesohigh drain.Thereby next, the treatment device that is suitable for next stage also is not limited to pressure filter.In other words, also can use a nozzle, and this pump itself also can be used as a kind of compressor.

Basically have energy free expansion and the barrier film that is configured in the pump housing according to the present invention at high-pressure service pump with shrinking, pump the chamber for forming a pressure chamber and within it, barrier film has a U-shaped cross-section, thereby obtain continuous output, and can in the halftime in each cycle, not interrupt any output, even because when input side pressure step-down, and output obtain one very the basic role of high pressure be guaranteed.And can guarantee the constancy of high pressure force feed mud by the number that increases pump.

In this pump, even when barrier film is in retracted position, the barrier film in each pump housing can remain a predetermined state.No matter be the combined pump that makes the interconnective simple structure of each bar with a single connecting rod, still guarantee the periodic duty of combined pump by between many pumps, keeping a predetermined phase difference, can both obtain a predetermined continuous high output.

Because many pumps are to link together with a single connecting rod,, and safeguard and detection can be carried out easily so combined pump is simple in structure.Therefore be not to say initial cost, and operating cost can reduce.

In the combined pump of design in a certain way, the supply of working oil and discharging, for example oil enters and the pressure chamber of flowing out each pump housing is undertaken by a single servovalve, thus it is complicated inadequately that whole compound pump structure can not become.

When combined pump is put to use, compare with the actual little input capability of each pump housing, can obtain a high output capability, and this constitutes the advantage of this combined pump as far as possible.Each is connected to a center piece with small phase difference when a plurality of pump housings, thereby can obtain the very constant output that does not obtain in arbitrary class industry as yet up to now.

Claims

1, a kind of combined complex pumping plant, have a plurality of pump housings, in described each pump housing, has cross section and is U-shaped, but the barrier film of free expansion and contraction, and the pump housing is divided into a pressure chamber and pumps the chamber, each bar enters slidably and outwards moves from the described pump housing, and with described each diaphragm support on its free end, described each pressure chamber is connected to liquid pressure source, describedly pump respectively that chamber and each liquid infeed mouthful and each liquid discharge outlet is communicated with, the invention is characterized in that the described bar adaptation that is installed in movably in the described pump housing operates with different phase places via a connecting rod that is connected on the framework.

2, according to the combined complex pumping plant of claim 1, the number of the wherein said pump housing is two, and described each bar is connected to each end of a single connecting rod, and via one the pin can around axle be supported.

3, according to the combined complex pumping plant of claim 2, wherein said each bar can engage with described connecting rod and engage from described connecting rod releasing by each magnetic clutch.

4, according to the combined complex pumping plant of claim 2, wherein said each bar is to be connected on the described connecting rod via slow spring.

5, according to the combined complex pumping plant of claim 2, wherein said two pressure chambers control with a single servovalve.

6, according to the combined complex pumping plant of claim 1, wherein the described bar described pump housing centering is formed a single bar, more identical pump housing with an identical bar be configured to first pump housing of pointing out to parallel, the internal described integral stem of the described pump housing with one single via a pin can around axle the connecting rod that is supported on the described framework be connected in aggregates.

7, according to the combined complex pumping plant of claim 1, wherein said a plurality of pump housing becomes ring ground to arrange, the described bar that is installed in movably in the described pump housing is supported on the crank that is positioned at the out of phase on the bent axle, bent axle can around axle be bearing on the described framework

8, according to the combined complex pumping plant of claim 7, wherein provide independently of one another for each servovalve that is controlled at each pressure chamber in described each pump housing.

9, according to the combined complex pumping plant of claim 7, described each bar that wherein is installed in movably in described each pump housing has each limit switch that is used for described each servovalve.