FR2498693A1 - PROCESS AND PLANT FOR TRANSFERRING LIQUID - Google Patents
PROCESS AND PLANT FOR TRANSFERRING LIQUID Download PDFInfo
- Publication number
- FR2498693A1 FR2498693A1 FR8101242A FR8101242A FR2498693A1 FR 2498693 A1 FR2498693 A1 FR 2498693A1 FR 8101242 A FR8101242 A FR 8101242A FR 8101242 A FR8101242 A FR 8101242A FR 2498693 A1 FR2498693 A1 FR 2498693A1
- Authority
- FR
- France
- Prior art keywords
- compartment
- pump
- fluid
- suction
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
La présente invention se rapporte aux procédés et installation de transvasement de liquide. The present invention relates to methods and installation for transferring liquid.
On connait une installation de transvasement de liquide, comprenant une pompe, dont le débit varie en fonction de la fréquence de déplacement d'un organe mobile, et un moteur, qui donne le mouvement à l'organe mobile. Lorsque du liquide a été transvasé par aspiration dans une tuyauterie, il en reste des gouttelettes sur les parois de la tuyauterie. Cela constitue une perte. Certains liquides, tels que le lait, doivent être conservés au froid. Ils se dégradent s' il8 restent à température ambiante dans la tuyauterie. Ce lait dégradé, repris lors d'un transvasement ultérieur, vient polluer toute la réserve déjà transvasée, bien que celle-ci ait été maintenue à grand frais à la température requise. A liquid transfer installation is known, comprising a pump, the flow rate of which varies as a function of the frequency of movement of a mobile member, and a motor, which gives movement to the mobile member. When liquid has been transferred by suction into a pipe, droplets remain on the walls of the pipe. This is a loss. Certain liquids, such as milk, should be kept cold. They degrade if they remain at room temperature in the piping. This degraded milk, taken up during a subsequent transfer, pollutes the entire reserve already transferred, although this has been kept at great cost at the required temperature.
L'invention pallie cet inconvénient par un procédé et une installation de transvasement simple qui assure nement des gouttelettes de liquide adhérant aux parois de la tuyauterie. The invention overcomes this drawback by a process and a simple transfer installation which ensures droplets of liquid adhering to the walls of the piping.
Le procédé suivant l'invention de transvasement de liquide par aspiration du liquide dans une tuyauterie à un premier débit à l'aide d'une pompe se caractérise en ce qu'il consiste à aspirer du gaz, notamment de l'air, dans la tuyauterie à un débit plus élevé que le premier, après achèvement de l'aspiration du liquide. The method according to the invention of transferring liquid by sucking the liquid into a pipe at a first flow rate using a pump is characterized in that it consists in sucking gas, in particular air, in the piping at a higher flow rate than the first, after completion of the suction of the liquid.
La vitesse de passage de l'air dans la tuyauterie est bien plus importante que celle du lait ou autre liquide. The speed of air passage through the piping is much higher than that of milk or other liquid.
Les gouttelettes sont détachées de la paroi et entrainées par le balayage dû à l'air.The droplets are detached from the wall and entrained by the air sweep.
L'invention vise aussi une installation de transvasement de liquide, comprenant une pompe, dont le débit varie en fonction de la fréquence de déplacement d'un organe mobile, et un moteur, qui donne le mouvement à l'organe mobile, caractérisée en ce que le moteur est tel que sa vitesse de rotation s'adapte au couple résistant dû au fluide qui passe dans la pompe. The invention also relates to an installation for transferring liquid, comprising a pump, the flow rate of which varies as a function of the frequency of movement of a movable member, and a motor, which gives movement to the movable member, characterized in that that the motor is such that its speed of rotation adapts to the resistive torque due to the fluid passing through the pump.
Le moteur peut être un moteur quelconque à changement de vitesse et l'utilisateur en change la vitesse, lorsqu'il sait ou lorsqutil constate que le transvasement de liquide est achevé. Mais, de préférence, le changement de vitesse est sensible à un indicateur de la nature du fluide, notamment liquide ou gazeuse, qui passe dans la pompe. The motor can be any speed change motor and the user changes the speed, when he knows or when he finds that the transfer of liquid is complete. However, preferably, the speed change is sensitive to an indicator of the nature of the fluid, in particular liquid or gaseous, which passes through the pump.
Le mieux cependant est que la vitesse de rotation du moteur s'adapte spontanément au couple résistant, c'est-à-dire que le moteur soit à vitesse variable. The best, however, is that the speed of rotation of the motor spontaneously adapts to the resistive torque, that is to say that the motor is of variable speed.
La pompe peut être une pompe rotative mais, de préférence elle est formée d'une enveloppe étanche ayant une tubulure d'aspiration et une tubulure de refoulement, de deux parois à membrane et siège, à l'intérieur de l'enveloppe, qui délimitent entre elles un compartiment intermédiaire compris entre deux compartiments d'aspiration et de refoulement communiquant respectivement avec les tubulures et qui ntautorisent le passage d'un fluide que du compartiment d'aspiration à celui intermédiaire et que de ce dernier au compartiment de refoulement, et de moyens pour éloigner et rapprocher alternativement les parois entre elles. The pump may be a rotary pump but, preferably, it is formed of a sealed envelope having a suction tube and a discharge tube, two membrane walls and seat, inside the envelope, which delimit between them an intermediate compartment between two suction and discharge compartments communicating respectively with the pipes and which allow the passage of a fluid only from the suction compartment to that intermediate and that from the latter to the discharge compartment, and means for alternately distancing and bringing the walls together.
Aux dessins annexés, donnés uniquement à titre d'exemple
Les figures 1 et 2 sont deux schémas, vus en coupe, illustrant le fonctionnement d'une installation suivant l'invention, et
La figure 3 est un schéma d'une variante.In the accompanying drawings, given only by way of example
FIGS. 1 and 2 are two diagrams, seen in section, illustrating the operation of an installation according to the invention, and
Figure 3 is a diagram of a variant.
La pompe comprend une enveloppe 1 métallique, de forme générale parallélépipédique, dans laquelle débouchent une tubulure 2 d'aspiration destinée à être reliée à une canne de succion, et une tubulure 3 de refoulement destinée à déboucher dans la citerne de ramassage de lait. The pump comprises a metallic casing 1, of generally parallelepipedal shape, into which open a suction pipe 2 intended to be connected to a suction pipe, and a delivery pipe 3 intended to open into the milk collection tank.
Chaque cloison comprend une membrane ou jupe 7 et 7B, étanche, fixée en 10 sur le pourtour de l'enveloppe 1. Each partition comprises a waterproof membrane or skirt 7 and 7B fixed at 10 around the periphery of the envelope 1.
La membrane 7 est reliée par une grille 11 formant siège à une paroi 12 et la membrane 7B à une paroi 12B par une grille 113. Ces parois 12 et 12B son mu - nies d'ouvertures. The membrane 7 is connected by a grid 11 forming a seat to a wall 12 and the membrane 7B to a wall 12B by a grid 113. These walls 12 and 12B are provided with openings.
Sur ces parois, est fixé un clapet 16 et 16B, tenus par une coupelle 14 et 1413. On these walls, is fixed a valve 16 and 16B, held by a cup 14 and 1413.
L'ensemble cloison A (membrane 7, clapet 16 et coupelle 14) est solidaire d'une tige 15 et l'ensemble cloison B (membrane 7B, clapet 16B et coupelle 14B) est solidaire d'une tige 15B. The bulkhead assembly A (membrane 7, valve 16 and cup 14) is integral with a rod 15 and the bulkhead assembly B (membrane 7B, valve 16B and cup 14B) is integral with a rod 15B.
Dans les compartiments 4, 6 et 5, les parois 12 et 12B n'ont pas de connexion entre elles, elles sont simplement solidaires par les fixations 10 et 11 de l'enveloppe 1. In compartments 4, 6 and 5, the walls 12 and 12B have no connection between them, they are simply secured by the fasteners 10 and 11 of the envelope 1.
Pour la cloison A, le clapet 16 se trouve dans la chambre intermédiaire 6 et, pour la cloison B, le clapet 16B se trouve dans la chambre de refoulement 5. For the partition A, the valve 16 is located in the intermediate chamber 6 and, for the partition B, the valve 16B is located in the discharge chamber 5.
Les tiges 15 et 1513 traversent l'enveloppe 1 par l'intermédiaire d'un élément souple 18 et 18B. The rods 15 and 1513 pass through the envelope 1 via a flexible element 18 and 18B.
L'élément souple 18 est solidaire de l'enveloppe 1 et de la tige 15 et l'élément souple 18B de l'enveloppe 1 et de la tige 15B. The flexible element 18 is integral with the envelope 1 and the rod 15 and the flexible element 18B of the envelope 1 and the rod 15B.
Un renfoncement 17 de l'enveloppe est prévu entre les points 10 de fixation des membranes 7 et 7B, de manière à diminuer le volume du compartiment 6 compris entre ces deux membranes lorsqutelles sont rapprochées l'une de l'autre. A recess 17 of the envelope is provided between the points 10 for fixing the membranes 7 and 7B, so as to reduce the volume of the compartment 6 comprised between these two membranes when they are brought closer to each other.
Les tiges 15 et 15B sont animées d'un mouvement alternatif par un moteur 19 à vitesse variable. The rods 15 and 15B are driven in a reciprocating motion by a variable speed motor 19.
L'appareil fonctionne de la manière suivante les deux parois sont animées d'un mouvement alternatif en opposition. The device operates in the following manner, the two walls are driven by an alternating movement in opposition.
- Les cloisons A et B se rapprochent (figure 1);
- Le compartiment 4 d'aspiration augmente de volume;
- Le compartiment 5 de refoulement augmente de volume;
- Le compartiment 6 intermédiaire diminue de volume;
- La communication entre le compartiment 4 et 6 est interrompue par le clapet 16.- The partitions A and B are getting closer (Figure 1);
- The suction compartment 4 increases in volume;
- The delivery compartment 5 increases in volume;
- The intermediate compartment 6 decreases in volume;
- Communication between compartment 4 and 6 is interrupted by valve 16.
En effet, il ne peut y avoir passage de fluide du compartiment 6 vers le compartiment 4 car le clapet 16 plaqué au départ sur la paroi 12 est maintenant collé par la différence de pression régnant entre ces deux compartiments. Indeed, there can be no passage of fluid from compartment 6 to compartment 4 because the valve 16 pressed at the start on the wall 12 is now bonded by the pressure difference prevailing between these two compartments.
La dépression dans le compartiment 4 augmente. Le fluide de la tubulure 2 est ainsi aspiré vers le compartiment 4. The vacuum in compartment 4 increases. The fluid of the tubing 2 is thus sucked towards the compartment 4.
Comme le compartiment intermédiaire 6 diminue de volume, une pression se produit dans ce compartiment, obligeant le clapet 16B à s'ouvrir et le fluide du compartiment 6 est refoulé vers le compartiment 5 et vers la tubulure 3. As the intermediate compartment 6 decreases in volume, a pressure occurs in this compartment, forcing the valve 16B to open and the fluid from the compartment 6 is discharged towards the compartment 5 and towards the tube 3.
- Les cloisons A et B s'éloignent (figure 2);
- Le compartiment 4 d'aspiration diminue de volume;
- Le compartiment 5 de refoulement diminue de volume;
- Le compartiment 6 intermédiaire augmente de volume.- The partitions A and B move away (figure 2);
- The suction compartment 4 decreases in volume;
- The delivery compartment 5 decreases in volume;
- The intermediate compartment 6 increases in volume.
- La communication entre les compartiments 6 et 5 est interrompue par le clapet 16B. - Communication between compartments 6 and 5 is interrupted by the valve 16B.
En effet, il ne peut y avoir passage de fluide du compartiment 5 vers le compartiment 6 car le clapet 16B plaqué au départ sur la paroi 12B, est maintenant collé par la différence de pression régnant entre ces deux compartiments. Indeed, there can be no passage of fluid from compartment 5 to compartment 6 because the valve 16B initially pressed on the wall 12B, is now bonded by the pressure difference prevailing between these two compartments.
La pression du compartiment 5 augmente par rapport à celle régnant dans la tubulure 3. The pressure in compartment 5 increases relative to that prevailing in tubing 3.
Le fluide du compartiment 5 est ainsi refoulé vers la tubulure de refoulement 3. The fluid in compartment 5 is thus discharged towards the discharge pipe 3.
Comme le volume du compartiment 6 intermédiaire augmente, une dépression s'y produit, obligeant le clapet 16 à s'ouvrir et le fluide du compartiment 4 et de la tubulure 2 est aspiré vers le compartiment 6. As the volume of the intermediate compartment 6 increases, a vacuum occurs there, forcing the valve 16 to open and the fluid from the compartment 4 and the tube 2 is sucked towards the compartment 6.
Lorsque lton a ainsi achevé de transvaser du lait dans la citerne, de l'air arrive par la tubulure 2. Le couple résistant que doit vaincre le moteur 19 diminue. When lton has thus completed transferring milk into the tank, air arrives through the tube 2. The resistant torque which must be overcome by the motor 19 decreases.
La vitesse de rotation de ce moteur 19 augmente spontanément et la fréquence des rapprochements et éloignements des parois A, B augmentent. Le débit de la pompe augmente. L'air circule alors à grande vitesse dans la tuyauterie, comprenant les tubulures 2, 3 et emporte avec lui toutes les gouttelettes de lait qui adhéraient à la paroi de la tuyauterie.The speed of rotation of this motor 19 increases spontaneously and the frequency of bringing together and moving away from the walls A, B increases. The pump flow increases. The air then circulates at high speed in the piping, comprising the pipes 2, 3 and carries with it all the droplets of milk which adhered to the wall of the piping.
A la figure 3, on transvase du lait d'un bidon 20 à une citerne 21 de camion à l'aide d'une pompe 22 centrifuge, dont la tubulure 23 d'aspiration débouche dans le bidon 20 et celle 24 de refoulement dans la citerne 21. La pompe 22 est entrainée par un moteur 25 à vitesse variable. In FIG. 3, milk is transferred from a can 20 to a tank 21 of a truck using a centrifugal pump 22, the suction pipe 23 of which opens into the can 20 and the delivery pipe 24 into the tank 21. The pump 22 is driven by a variable speed motor 25.
Le moteur 25 est muni d'un changement de vitesse 26, commandé par un indicateur 27 de la nature du fluide qui passe dans la tubulure 23. Il s'agit, en l'espèce, d'un dispositif optique détectant, à travers un hublot 28, ménagé dans la tubulure 23, le rayonnement lumineux émis par une source 29. Bien entendu, cet indicateur 27 pourrait détecter aussi une propriété autre du fluide, par exemple une propriété électrique, cependant que cet indi cateur 27 peut être superflu si 11 os confie à un opéra- teur le soin de manoeuvrer le changement de vitesse 26 suivant ce qu'il voit passer par le hublot 28. The motor 25 is provided with a gear change 26, controlled by an indicator 27 of the nature of the fluid which passes through the tube 23. It is, in this case, an optical device detecting, through a porthole 28, formed in the pipe 23, the light radiation emitted by a source 29. Of course, this indicator 27 could also detect a different property of the fluid, for example an electrical property, however this indicator 27 may be superfluous if 11 os entrusts an operator with the task of maneuvering the gear change 26 according to what he sees passing through the window 28.
Lorsque du lait ne passe plus dans la tubulure 23, ltopérateur ou l'indicateur 27 manoeuvre le changement de vitesse 26. La pompe 22 tourne plus vite. Son débit augmente. Flair passe à grande vitesse dans la tuyauterie et balaie tout sur son passage. Il ne reste plus de gouttes de lait dans la tuyauterie. When milk no longer passes through the tubing 23, the operator or the indicator 27 operates the gear change 26. The pump 22 rotates faster. Its flow increases. Flair passes at high speed in the piping and sweeps everything in its path. There are no more drops of milk in the piping.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8101242A FR2498693A1 (en) | 1981-01-23 | 1981-01-23 | PROCESS AND PLANT FOR TRANSFERRING LIQUID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8101242A FR2498693A1 (en) | 1981-01-23 | 1981-01-23 | PROCESS AND PLANT FOR TRANSFERRING LIQUID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2498693A1 true FR2498693A1 (en) | 1982-07-30 |
Family
ID=9254442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8101242A Pending FR2498693A1 (en) | 1981-01-23 | 1981-01-23 | PROCESS AND PLANT FOR TRANSFERRING LIQUID |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2498693A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626308A (en) * | 2017-09-07 | 2019-04-16 | Fbd合伙公司 | Beverage dispenser cleaning method and equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE251417C (en) * | ||||
| GB539247A (en) * | 1940-03-13 | 1941-09-02 | Robert Arthur Chalmers | Improvements in or relating to diaphragm pumps |
| FR1057315A (en) * | 1952-05-23 | 1954-03-08 | Vehicules Ind Titan | Installation for emptying tanks with several compartments, in particular for tanks of trucks, trailers, semi-trailers and other vehicles |
| FR2039241A1 (en) * | 1969-04-17 | 1971-01-15 | Borg Warner | |
| US3580420A (en) * | 1969-01-27 | 1971-05-25 | Corken Pump Co | Evacuation system for pipeline discharging pump |
| US3836285A (en) * | 1972-12-07 | 1974-09-17 | Tri Matic | Water regulator and power governor |
-
1981
- 1981-01-23 FR FR8101242A patent/FR2498693A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE251417C (en) * | ||||
| GB539247A (en) * | 1940-03-13 | 1941-09-02 | Robert Arthur Chalmers | Improvements in or relating to diaphragm pumps |
| FR1057315A (en) * | 1952-05-23 | 1954-03-08 | Vehicules Ind Titan | Installation for emptying tanks with several compartments, in particular for tanks of trucks, trailers, semi-trailers and other vehicles |
| US3580420A (en) * | 1969-01-27 | 1971-05-25 | Corken Pump Co | Evacuation system for pipeline discharging pump |
| FR2039241A1 (en) * | 1969-04-17 | 1971-01-15 | Borg Warner | |
| US3836285A (en) * | 1972-12-07 | 1974-09-17 | Tri Matic | Water regulator and power governor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626308A (en) * | 2017-09-07 | 2019-04-16 | Fbd合伙公司 | Beverage dispenser cleaning method and equipment |
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