DE2259397A1 - PUMP FOR TRANSFERRING LIQUIDS - Google Patents

Description

Ee Alliaan & öompaay limited

Eoad

Attorney's sect; 3135

Pump zma powder ψοώ. S ¹ uSeSSiBilities

The invention relates to improved, special colors and inexpensive tar racks and liquid pumps, which are primarily used for blasting and sprinkling systems. ia der .farmseSaaft umü ia nurseries vorgeaebeta

The inventuagey ^ iBägae pump is dadurob gekenmzeiebsiet ». that &% a FumpesigfeäuS'S one between inlet and outlet es? atreekesJfgm elongated en l'öräerka.nal eiattoält and -

on a Maa © iaiii? agestell? = and is mounted over-moving, and that a valve seat is arranged in the feed channel between the inlet and outlet, which works together with a valve body, wsl ^ over with released Tentilslts with a Rii © klgaltev0rri © btu% g held at a small distance from the valve seat will"

Let the pump housing be tubular and form

with his Bobruisg den

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The · verzugewelBf. Spherical Ventilköraer i is axially veraohieblioh within the conveying channel X * relative -ium preferably frusto "l'örmigeE or spherical valve seat _o

The restraint device can be provided with a spring which acts on the valve body in the direction of the valve seat, the valve body being separated from the holding device when the valve is acted on and only touching the latter when the noise is in the liquid is moved in to be föritanidti, so that the leather is opened up to lead to the valve body in the direction of the valve seat,

According to a modified form of execution, the return

BalteTorri & btmig the valve body also constantly activated gen. Suitable as a precautionary measure for the RUökfcalteTorriohtuag preferably sieve a coil spring whose Asbee sieve in longitudinal friction of the Durebflußkanals extends and attached to the housing at the end remote from the valve seat

According to a further feature of the invention, the return

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holding device for the valve body an abutment, that in the conveyor channel with predetermined! Distance to the valve body resting in the valve seat is arranged. ,

The back and forth. lending drive can with a Electric motor are generated »whose output shaft is connected to the pump housing via a mechanical crank drive coupled let «

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Further details and features of the invention result can be derived from the following detailed description and the accompanying drawings, in which preferred embodiments of the invention are illustrated by way of example. ,

In the drawings show: Flg. 1 is a side view of a device according to the invention

Pump, 2 shows a section along the section line II-II

of Fig. 1, 3 shows a section along the section line III-III

the pig. 1, Fig. 4 is a side view of a pump according to a

second embodiment of the invention, Fig. 5 is a vertical section through part of a

Pump according to a third embodiment

of the invention and 6 shows a schematic representation of a pump

according to a fourth embodiment of the invention.

Pie illustrated in Figures 1 to 3 of the drawings

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225939? - 5 -

The pump can deliver around 360 liters per hour and generates a pressure of around 1.75 kg / cm at a flow rate of 0. The pump is intended for irrigation systems in agriculture and in the farming industry »

To pump the Figo 1 belongs upright thrust tube 1, aluminum or stainless steel, The tube 1 contains at the lower end of a valve assembly 3 and a! Tilter 5 _O A drive pipe 7 connects the upper end of the thrust chamber 1 with a conveying tube 9 »The drive tube 7 is connected via a crank mechanism 11 connected to an electric motor 13 (FIG _e 3K When the filter 5 is immersed in the liquid of a collecting container 15 and the motor 13 is turned on, the drive tube 7, the torque tube 1, the valve assembly 3 and the filter 5 move up and down and the liquid in the collecting tank is conveyed up to the delivery pipe 9

The filter 5 of the inventive pump is with a Sieve 17 made of stainless steel is provided, which is essentially cylindrical, but conically apart at the lower end running o The sieve 17 is carried by an annular collar 19, on a vertically directed filter tube 21 with a

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Screw 23 is attached. The liquid enters the pump via the open lower end of the filter rotor 21. When passing through the sieve 17, foreign bodies become kept away »

As FIG. 2 shows, the filter tube 21 has an external thread 25t which is connected to the internal thread at the lower end a polypropylene housing 27 of the valve assembly 3 ▼ is screwed. Its counter nut 29 is used to secure the position of the filter tube in a previously determined axial position relative to the housing 27

At the upper end of the filter tube 21 is a sleeve 31 used, which is provided with a truncated cone-shaped valve seat 33 at its upper end. The location of the Filter tube 21 opposite the housing 27 is chosen so that the valve aitz 33 next to the lower end of an in the housing 27 formed valve chamber 35 comes to rest ο

Inside the chamber 35 of the housing 27 is located below a ball 39 made of propylene, which serves as a valve body and cooperates with the valve seat 33 to the To control the flow of liquid through the housing 27 «Im

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In operation, the ball 39 is moved up and down when the push tube 1 and the valve housing 27 move back and forth in the manner to be described below, _{or the like}

Above the ball 39 there is a ball abutment 41 with which the ball is held in the waist of the valve seat 33 when the pump is operating. The ball abutment 41 is essentially a cylindrical hollow body with a conical recess 43 at the lower end. In this recess 43 the ball 39 comes to rest. To support the ball abutment 41 in the chamber 35, a bearing sleeve 43 is arranged in this chamber in coaxial alignment above the ball abutment 41 and a compression spring 47 is supported on the side wall of the chamber with screws 45 at the upper end on a lower part of the bearing sleeve 43 and at the lower end on an upper part of the ball abutment 41 ah «

The lower end of Sohubrohres 1 carries an external thread, into which the internal thread at the upper end of the valve housing "27 engages a lock nut 39 secures the torque tube 1 in pre-determined axial position relative to the housing 27 <>

As PIg ₀ 1 and 3 show, the upper end of the thrust

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tube 1 via a polypropylene connection sleeve 51 with connected to the drive tube 7, which consists of stainless steel.

The drive tube 7 extends above the connecting sleeve 51 upwards through an opening in a base plate 53 through into the interior of a housing 55 which is welded to the base plate 53 · The base plate 53 contains Bores 57, with which the pump with a bracket on the collecting container 15 containing the liquid can be attached. The housing 55 is open on the front side and is provided with a cover plate 61 with a wing nut 63 and a screw bolt which is attached to the vertical rear wall 67 of the housing is held.

A felt washer seal 69 in a polypropylene housing 70 lies between a retaining bracket 71 and the base plate of the housing 55 and surrounds the drive tube and thus ensures a seal between the pipe 7 and the housing 55. In this way, oil and vapors are produced prevented from entering the housing without thereby causing the reciprocating movement of the drive tube 7 is hindered o

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2253397

The motor 13 is old on the rear wall 67 of the housing 55 ′ Screw bolts 73 fastened which pass through a plate 75 which is connected to the rear wall 67., Pie hub shaft 77 of the motor 13 extends horizontally through openings in the wall 67 and the plate 75 into the interior of the housing 55 »A cover 79 for the Motor 13 is also attached to the wall 67 and also a plate 81, which the controls 83 for the pump carries "

A crank disk is located inside the housing 55 85, a crank pin 87, a connecting rod 89 and a connecting rod pin 91 of the crank mechanism 11 »In this way the shaft 77 is fitted with a Tertikaien moring bar 93 coupled, which is attached to the upper end of the drive tube 7 »This is how the drive tube moves 7 by the guide rod 93 guided in a vertical guide 95 to a movement in an exactly vertical direction Direction set. You Tertikaifführung 95 is with the Plate 75 connected to the rear wall 67 of the housing 55 » As an outlet for the liquid from the drive tube 7 is a branch pipe 97, which has a flexible Hose 99 is connected to the delivery pipe 9 * Like the Drawing shows is the conveyor tube 7 via an opening

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In the upper rope of the side wall 101, the housing 55 led out.

In the above-described pump, the Sohubrohr 1 is 53f3 cm long with an inside diameter of 1 _V 27 om. The valve housing 27 is 12.7 cm long with an inner diameter τον 1.5 cm, which extends to 1.75 om in the chamber 35. The lower end of the ball abutment 41 is 3.2 mm above the ball when the ball is on the valve side 33.

For operation, the base plate 55 of the pump with the Bracket on the lank 15 containing the liquid Screws fastened so that the drive tube 7, the Thrust tube 1 and daa filter tube 21 are in a vertical position. The liquid level in the collecting container 15 is so high that the filter 5 is immersed in the liquid.

In order to switch on the pump, the electric motor 13 energized so that it moves the drive tube 7, the thrust tube 1, the valve assembly 3 and the filter 5 up and down As a result, liquid is discharged from the collecting container through the filter tube 21, the housing 27 and the tubes 1 and 7

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Can be hose pumped 99 upwardly discharged from where the liquid via the conveying tube 9 ₀ with a stroke of 1.27 cm and 2,100 strokes per minute, it is possible to pump 360 liters of liquid 3e hour "The maximum pressure at a flow rate O _{is 1.75 kg / cm 0} at a liquid temperature of 20 ° Celsius

It should also be mentioned that initially the ball 39 rests a few centimeters above the liquid level of the collecting container 15 on the valve seat 33, so that a column of air is trapped between the ball 39 and the liquid and the pump is initially not yet operational ο when the pump is working , a first downward stroke of the filter tube 21 and of the housing takes place in relation to the liquid level the valve seat 33 comes free from the ball 39 ο This gives the tube 21 the possibility of moving downward relative to the column of air, while the liquid level inside the tube remains essentially as high as the liquid level outside ο This means with other ports, that

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Opposite the pipe 21 “In upward conveyance of the air Sound an area below the Ventlleitnea 33 m takes place in an area above the valve side.

If daa Bohr 21 calibrate against the ball 39 by about 0.32 ce has moved downwards, acts on the ball the lower end of the ball abutment 41 · A subsequent movement of the »tubes · 21 relative to the ball 39 downwards leads to a compression of the teder 47. When the tube 21 reaches the end of the Abw & rtahubee, acts on the ball 59 under the influence of gravity and the spring 47 again the Tentllalte 33. Jetat a reduced column of air will show the flow of air in tube 21 and ball 39.

During the subsequent upward movement of the Rohree the ball 39 remains on the Yentlleltss 33 and prevents a movement of the tube rather than the one inside it Air, so that the air volume does not calibrate again to the original value can increase. When that pipe 21 has returned to the starting position, the FLÜsslgkeltan level within the Hohree is higher than dee liquid level outside the tube. The difference in level corresponds roughly to the distance by which the

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Tube 21 previously down into the liquid “The end result is that there is a small volume of liquid in the tube 21 in the direction of the Valve seat 33 has been promoted lato

During the subsequent pump boom, the air volume under the valve seat 33 is further reduced until the liquid level reaches the valve seat. The downward movement of the ball 39 is no longer delayed by the air but by the liquid in the pipe 21 during the subsequent pump strokes. Thus, the valve seat 33 lifts off the ball 39 again and the tube 21 and the housing 27 move downward relative to the liquid in the tube 21. With each upward movement, the valve seat 33 and ball 39 come together again to the plant * to prevent a backflow of the liquid within the tube 21 and the housing 27. Each downward * and upward movement of the pump now causes an overhead transfer of liquid from the space below the valve seat 33 to a space above the valve seat, dob. the pump works * - .. .., ■, - --.-, ·.

It has been found that the pump with the. Pipes 7 and 1, the housing 27 and the tube 21 also in oblique

309 824 / 038.1 * '

situation can work »

In the pump arrangement according to Fig. 4ι in the Pig. 1 to 3 matching parts are marked with the same reference number, the pipe 7 is horizontal « The tube 21 is elongated and includes an inclined end portion 111 opposite the main portion 113 includes an angle of about 135 °. The housing 27 and the filter 5 are attached to the end plate 111, which is immersed in the liquid of the collecting container »15. The pipes 7, 1 and 21 and the housing 27 are then moved back and forth horizontally. A pumping action results in that the liquid is pushed up through the filter 5 and the tube 21 to the housing 27 to lift the ball off the valve seat when the pump is moving to the left in relation to FIG. 4 »The pipe 4 can consist of a rigid material or also of a material which is sufficiently flexible, in order to bring the end section 111 into the corresponding inclined position. However, the flexibility should not go that far ensure that the liquid is not pushed upwards during the pump strokes.

With a further pump version according to the present

309824/0381

the invention, the spring that acts on the ball is a weak spring that just acts on the ball when it is in the valve seat Lift the valve seat off the valve ball when the tubes move down :: down in the direction of the liquid »

In a further pump arrangement according to Pig. 5 let the peder 47 is omitted and it is used as a ball abutment a cylindrical abutment 121 is provided, which on the side wall of the housing 27 at a small distance over the ball 39 is attached. The abutment 121 acts. . - * the ball 39 hits the valve seat 33 after it has left and then holds the ball during the Ab-H upward movement of the housing 27 in the system »If that Housing 27 comes to a standstill and is then moved upwards, the valve seat 33 comes very quickly again at the ball 39 to the plant.

The abutment 121 can also be through other abutments be replaced, which are attached to the wall of the housing at a short distance above the ball 39

309824/038

Instead of the above-described arrangement with an electric motor 13 and a crank drive 11, an arrangement according to FIG. 6, which works with an electromagnet 151, can also be used. A winding 133 and a laminated winding core 135 belong to the electromagnet 131. A soft iron piston 137 is attached to the upper end of the drive tube 7 and protrudes upwards into the winding 135. By supplying an alternating current to the winding 133, the piston 137 and with it the drive tube 7, the Sohubrohr 1 and the valve housing 27 moved alternately up and down _o

Instead of the electromagnet in FIG. 7, a pneumatic drive can also be provided.

According to a further embodiment of the invention, the pump can also be mounted running a febrberen sprinkler or sprinkler machine, in which case a coupling is provided with which the drive tube is connected to an impeller of the mobile machine. When such a mobile machine is moved across the ground, the movement of the running wheels is transmitted to the drive tube, which is then alternately moved up and down.

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Claims (1)

ί Xy pump for pumping liquids characterized by ζβlehnetj that the lamp housing (X) has a sieve between Inlet (5) and outlet (7) containing elongated conveying channel (35) and on a machine » frame is mounted back and forth, and that In the feed channel (35.) between the inlet (5) and outlet (7) a valve seat (33) is arranged, which with a Valve body (39) cooperates, which when the valve seat (33) is released with a Rttckhaltevoriohtung (41) is held at a short distance from the valve seat (33), 2ο Pump according to claim X, characterized by the fact that the Pump housing (j) let tubular and with its bore forms the feed channel (35) » 3ο pump naefe Aiaspruefe 1 or 2, dadu ^ cb marked. that the Vifttllktoper (39) within the Pörderkaaale (35) (33) axial
relative to the valve seatY ^ erssliiebXich is mounted _o Pump according to Claims 1 to 3, characterized in that the valve body is a ball (39) and the valve seat (33) has a frustoconical or spherical surface _P 30 9 824/038 1 '' - ■ * ■ * - ■ * Pumps naüb 'claim 1 to 4 characterized in that that the retaining device (41) with a spring (47) is provided, which the valve body (39) in the direction applied to the valve seat (33). 6ο Pump according to claim 5 _S, characterized in that the valve body (39) is separated from the back hold device (41) when the valve seat (33) is acted upon and only touches the latter when the housing (I) strains into the liquid to be pumped moved in so that the spring (47) is tensioned in order to return the valve body (39) in the direction of the valve seat (33) « 7ο Pump naefe claim 5 _t dadurob characterized that the RUckbalteTorantriebtung (41) the valve body (39) constantly pressurized » 8. Pump naüb claim 5 to 7, characterized in that that the Vurepannfeder (47) of the retaining device (41) is a helical spring, the axis of which extends sieve in the longitudinal direction of the DurcbilußkämälB and is attached to the end remote from the valve seat (33) on the housing 1st. 309824/038 9ο pump ttaeb Äiepi? Ueb 1, to B ₉ characterized in that the KliiteijaltevoÄricbtung for the valve body (39) did an abutment (41), there in the feed channel (35) with a small distance to the valve body (39) resting in the valve seat (33) ) is arranged 10c P & ifip <* na © | i Claim 1 "to 9» characterized in that that the pump housing (1) and its flow channel gex-a 0-1.1 © -% 6) usgi '* forms-.siici uad that-the his «- ψίύ_, mountain fiight ^ drive as the pump housing (l) -in a weseöti oe parallel to it «. moves $ wöbet ^: äaa ßeteäuse (l) in operation like this is »that the flow channel sie rertical or sc'a ^ ftg extends to the horizontal " PfetHj3 € Sf nayb claims 1 to 10, characterized in that the inlet (5) is arranged in an obliquely inclined downwardly inclined l &daTtiijeSp'itt (117) of the housing (1). (äeiT i '^ gemliber .. the essentially horizontal a.U8ijeri "slu; ^v i" * "t" main.tobsotattltt (113). of the housing. (1) Sofeäuse (t). its..essential in parallel 3 09824/0 3 81 «20- 12o pump with Aneprunh X to 11, characterized in that the Ia iu · - and foregoing drive is generated by an electric motor (13) whose output is coupled to the Pnmpsngebäuse (X) is ο Putnpe ift '^ ib claim 12, characterized in that the oil coupling is a mechanical crank drive (11) » 14c}? I7.mpe na "Jh Annprncb 1 to 11" characterized by an eXekfcotaagnetic or pperaia table piston · 3 098? W03fi1 ^1AD