HUE025615T2

HUE025615T2 - Level-dependent pump control

Info

Publication number: HUE025615T2
Application number: HUE07024706A
Authority: HU
Inventors: Fred Brueckmann; Juergen Groeschel
Original assignee: Klein Schanzlin & Becker Ag
Priority date: 2007-02-20
Filing date: 2007-12-20
Publication date: 2016-04-28
Also published as: SI1961963T1; ES2542340T3; DK1961963T3; PL1961963T3; EP1961963A3; EP1961963A2; DE102007008692A1; EP1961963B1; PT1961963E

Description

LEVEL-DEEENDENT ELME CONTROL

The foveutfoa relates to a device feavisg a liquid «©Btainer 'with one· -or more p©s©ps, a control device which switches one or more pomps on or off as a function of the level of the liquid in the container, and one or more .sensors, connected to the control device, for sensing one or more liquid: levels, in particular switch-o® and swlteh-off levels of the pumps, and to a method for operating such devices or systems equipped therewith.

Such devices are used in wastewater lifting: systems that have to convey water accumulating below· the backflow level of a pipe system and are usually arranged in residential buildings. They are used primarily to convey foeces-containing wastewater that collects in the basemsnis of such resident fo! buildings. They are therefore often also referred to as sewage lifting systems. A generic device is known from DE !99 13 530 AI. One or more pumps are switched on or off depending on the level of the liquid in a container. Sensor modules connected to the control device are used to detest the liquid levels and are arranged os the outer side of a container wall, Here, the evaluation of the sensor modules is fixed at one or more predefined liquid levels. A sensor module that is arranged m the surface of the collection container emits waves that are reflected hy the surface of the liquid located in the colleetioo container. The distance of the. liquid le vel front the semer module is calculated from the propagation time of the waves,. Alternatively, sensor modules arranged at different heights on the side wall -of 'the. collection container are used. Large inflow's create swirling In the container. The switch-off points have to be set accordingly high so that the pumps do net suck m any air.. Usable volume Is lost as a result, IP 1 559 §41 A2 discloses a waste water collection well and a method tor Installation thereof and/or for operation thereof, in which, a period of time between the detection of two different heights of the wastewater level is measured by means of a time measuring device. Since the desired switch-off level of the pump is· located outside the detection range of the sensor, the necessary pumping time of the pump Is determined as a function of the measured period of time. The pumping time after which a certain predefined switch-off level of the pnmp is reached is calculated by means of a time multiplier on the basis of this period of time measured when the pump is switched on. An extrapolation of this type of the necessary pumping time of the pump is afflicted by uncertainties, anti there is the risk that the liquid level will foil below the predefined switch-off level. Such a method cannot be used in applications with small container volumes, as are conventional in wastewater pump systems. DE 101 32 084 A t discloses a wastewater lifting system that Is to have the greatest possible switching volume in the sense of an optimal mode of operation. Since the base area of the wastewater container and the highest possible switch-on level are generally predefined or limited by the dimensions of the system, a design with a very low swlteh-off level is provided. For this: purpose a flexible, bendable pipe piece is fixed in a sealed manner via the fitst etui thereof on the suction opening of the pnmp, and the second or free end of said pipe piece is located doser to the base of the wastewater container than the suction opening. The flexible, bendable material of the pipe piece has the disadvantage that, when liquids containing solid additions are conveyed during the pumping process, it folds bn account of the negative presaarr or a heading caused by solid materials, and this can lead t© m obstruction of the suction opening, EP ê S8Ö 558 At presents a device for controlling lifting pumps ta a drainage system comprising a pressure-actuated switch, which generates a control signal for the pam-ps in accordance with the liquid U>m) in the system, and comprising a tight, flexible chamber, which contains a fluid and which is to fee arranged below the level of the liquid to be lifted. By means of a tsnrpofally periodic, complete emptying of the pump tank, a periodic removal of the deposits formed in the tank is provided.

The invention thus addresses the problem of creating a device of the type mentioned in the Introduction that provides a safer switch-off level for the pumps using less complex means, with better utilizafion of the available container volume, and under changing operating conditions.

In accordance with the solution to the problem, during operation the device adapts the switch-off level of at least one of the pumps: as a function of the inflow quantity of the liquid which is to fee held by the container. Due So the Hex this adaptation of the switch-off levels of one or more pumps provided during operation, the device is suitable for changing operating conditions. The switch levels, also referred to hereinafter äs switching points, are adapted as a function of conditions in a device according to the invention or in a system equipped with the device. These levels are shifted: towards or away from the container base during operation as appropriate. A predefined, available container volume is thus better utilized. As an additional advantage, the same device or a system equipped with the device can be used for different applications. in accordance with the invention the device adapts switch-off levels of the pnmps as a function of the inflow quantity of the liquid to fee held by the container. By Inking into consideration the inflow quantity, i,e, the volume per unit of time, the device is also suitable for large inflow qnamhics, Here, it is possible that when there is a large inflow quantity the device raises the switch-off levels of the pumps and/or when there is ä small: inflow quantity the device lowers the switch-off levels of the pumps. Reliable operation of a device according to the invention or of a system equipped therewith is thus ensured, even when there Is swirling In the container esősed by the inflow snd even when there are resultant inclusions of air in the conveyed liquid. Excessively large safety reserves In the design of the switeh-off point of a pump must not fee held available during operation phases or in applications in which small inflow quantities occur primarily. A device according to the invention, with its control device, is able during operation to lower the switch-off points of the pumps when there are small inflow' quantifies and to thus utilize the container volume optimally. When there are large inflow quantities preset switch-off levels are maintained and/or the switch-off levels offne pumps are raised. The control device and/or algorithms- stored therein can fee parameterized accordingly for this purpose:,

The device is able to determine the throughflow of the inflowing liquid. This is performed continuously during operation of the device, the throughflow being determined continuously, at previously definable intervals, or with certain events.

It has. proven to be expedient that the device determines the inflow quantity hy measuring the rise time of she liquid level between at least two measuring levels. The inflow quantity is calculated as inflow volume per unit of time by the rise time measured in a time measuring device of the control device and by the known cosiaiser volume. The switch-off points are adapted: as a function of the determined inflow quantity.

Ideally, a switch-on level of a pump is selected as a first measuring level, and a second measuring level is arranged below it. The inflow quantity is advantageously determined when the pumps are stationary and before each switching on of a pump. The inflow quantity is thus determined with rising liquid level immediately before a pumping process, whereby the conditions before a pumping process can he used promptly for a direct adaptation of the switching levels.

The control device is able to select the switch-off levels of the .pumps from a plurality of different switching levels as a fonction of the inflow quantity. It is advantageous when the switching levels and/or measuring levels are provided by means of sensors with one or more Individus! switching positions. A control device can thus use the appropriate sensor for evaluation as a function of the inflow quantity and In accordance with the desired switch-off level and can determine a switching condition on the hasis of the switching signals of said sensor, Her#,, different level sensors having differed! measurement principles are suitable as sensors. The sensors can be arranged in the container or outside the container.

Alternatively, the control device is connected to a sensor for sensing a plurality of liquid levels. Such a sensor enables the sensing of individual or all necessary levels, i.e. switch-os levels of the pumps, levels for measuring the rise time of the liquid in the container, and ail swhch-offTevels of the p run os. Besides a lower connection effort, such a solution allows a more flexible and finer gradation of switching levels and/or measuring levels.

Here, the use of a sensor with a continuous output signai has proven its worth. This sensor can sense the liquid level In the container continuously and can provide this to the control device by an output signal corresponding to the liquid level. This is a standardised, industrial-suited output signal where appropriate. This means that a raising and/or a lowering of switch-off levels and also a fixing of the measuring levels or measuring points for measuring the rise time cars be Implemented continuously,

Here, the control device forms simply one or more switching levels and/or measuring levels. The limit values: of individual and/or all switching levels and/or measuring levels are defined in the control device. For this purpose switching levels and/or measuring levels are stored and/or can be configured in the control device and are used depending on the system condition. An assignment can he made by means of a stored table. By way of example, different alterna:ive switch-off levels are thus stored in a table as a function of the inllow· quantity. The desired switcising levels can be determined just as well by means of stored formulas. The measured values sensed by the sensor and transmitted in the form of a sensor outppi signal are monitored ccndnuousiy in the control device for an overshoot or undershoot in order to control the necessary switching on and off of the pumps and also in order io identify the start and stop level of measurements.

Alternatively;, the tallow quantity is measured by a measuring device which is arranged at the irt» pipe. The inflow quantity can he measured continuously 'by such a measuring device, it has proven: to be advantageous to take the measurement of the inflow quantity at any time and Independently of any pumping processes of the pumps already taking place. A continuous consideration of the inflow quantity leads to an even more exact adaptability of the switch-off levels to the current conditions. By way of example, ultrasonic measuring devices or magnetically inductive flowmeters are suitable as measuring devices arranged at the inflow pipe.

Sensors having different measurement principles are suitable as sensors for sensing the liquid level:, the measuring signals of said sensors forming the basis of conclusions regarding the container level. The invention is not fixed to a specific measurement principle. Byway of example, a sensing of the liquid level is possible by means of a hydrostatic pressure measurement, an ultrasonic measurement, by means of optical or capacitive principles, or by means of guided microwave. The sensors can be arranged wholly or partially in the container. The liquid level can also be measured by one or more sensors arranged outside on the container. A measurement of the liquid love! by a float arranged in the container, the lifting movement of said float being converted into an output signal which corresponds to the liquid level:, has also proven its worth. Such level, sensors, in which a Boating body performs a detectable stroke depending on the liquid level in the container, additionally constitute m economical solution,

The device according to the invention advantageously has means for detecting unacceptably large in flow quantities and/or means for generating alarms,

In accordance with a method for operating a device according to I lie invention or a system which is equipped therewith the switch-off level of at least one of the pumps is adapted during operation. This Is implemented as a function of the inflow quantity of the liquid to be held by the container,

When there is a large inflow quantity switch-off levels of the pumps are raised, and/or when there is a small inflow quantity switch-off levels of the pumps are lowered. it has proven to be expedient that the thruughfiow of the inflowing liquid is determined. The inflow quantity is advantageously determined by measuring the rise time of the liquid level between at least two measuring levels.

Here it is advantageous when a swltch-on point of a pump is selected as a first measuring level, and a second measuring level is arranged below it. The Inflow quantity is calculated as inflow volume per unit oi tttne by the rise time measured in a time measuring device of the control device and by the known container volume. The switch-off points are adapted depending oh the currently determined inflow' quantity.

Mere, M adaptai io» of the switching points on the basis of a. previous measurement may lead its a complété and greatest possible adaptation of the switching points already for the next pumping process, which leads to a quick availability of the optimal container volume. A number of previous measurements, weighted accordingly, are also included in the adaptation of the switching points, and for example only a sustained trend towards- lower inflow quantities causes a lowering of the switch-off points, or a trend towards greater inflow quantities is identified and a. corresponding react!«» is only then initiated.

An advantageous method allows the inflow' quantity to he determined when the pumps are stationary and before each switching o:n of a pump. The switch-off levels of the pumps are selected trots a plurality of different switching levels as a function of the inflow quantity.

Here, it is advantageous when the switching levels and/or measuring levels are provided by sensors with one or more individual switching positions.

In addition, It is proposed that a plurality of liquid levels are sensed by a sensor which is connected to a control device. A method in which: a sensor with a continuous output signal is used has proven its worth, A method in accordance with which one or more switching levels and/or measuring levels are formed by the control device is particularly flexible. The limit values of individual to all necessary levels can thus be defined depending on the system and operating conditions.

An alternative method uses a measuring device arranged at the inflow pipe to measure the inflow quantity.

The liquid level can be measured by one or more sensors arranged on the outside of the container and/or by a float which is arranged in the container and the lifting movement, of which is converted into an output signal which corresponds to the liquid level in applications for which a monitoring is provided, a method in accordance with which unacceptably large inflow quantities are detected and/or alarms are generated has proven its worth. Additional monitoring and diagnosis functions, such as pump propagation time monitoring, are provided.

The device according to the Invention is recommended for lifting systems, in particular for liquids containing solid additions, he, for example for wastewater lifting systems.

It is indeed known in principle from DE 39 18 294 Al to determine a container inflow by measuring the filling period during a stationary period of a pump. For this purpose a method for monitoring the functioning and the output: of a wastewater pumping station Is disclosed, wherein a monitoring device continuously monitors the pump output values and compares the values at a certain, predefined moment in time to measured reference values, The determination of the container inflo w is used in this instance only for a determination of the tbfoughptd of the pump taking Into consideration the container inflo w. The current pump values are compared with those values of a new pump, and a value deterioration is an indicator for pump wear. Art adaptation of the switch-off points as a function of the measured inflow quantity is not provided. 'Exemplair embodiments of the invention are presented in the drawings and will he described in greater detail hereinafter. In the drawings:

Figure 1 shows a conventional structural arrangement of a lifting system for polluted liquids.

Figure 2 shows a lifting system according to She prior art.

Figure 3 shows a lifting system that is equipped with a device according to the invention: and that is operated using a method; according to the invention, and

Figure 4 shows a farther system, which is equipped with m alternative device likewise corresponding to the Invention and is suitable for operation with a method according; to the invention.

The system illustrated in Figure 1 is arranged below the backflow level 1, which is indicated here by a triangle. The system comprises a liquid or collection container 2. which is connected to a wastewater line 3, and a conveying; line 4, which opens oat Into a wastewater channel 5. A centrifugal pump (not illustrated) is arranged in the collection container 2 and conveys the faeces-cooiaistng and faeces-free w&sîswater flowing Írom the: wastewater line 3 into the wastewater channel 5 via a check valve 6.

Figure 2 Shows a lifting system according to the prior art. This is equipped with a centrifugal pump 7, of which the electric motor S is provided with a control device 9, The centrifugal pump 7 with electric motor 8 can be switched on and off by the control device 9. The centrifugal pump ? is arranged upstream of a cheek valve 10. The lifting system has a collection container 11 with aft inflow pipe 12, through which liquid can flow into the container, A float switch 13 is provided in the collection container I! and responds to three different previously set liquid levels: with a minimum liquid level it gives the signal to stop pumping operation "Pump OFF”, with a. normal maximum wafer level it gives tbs signal to start pumping operation “Pump OFT, and with a water level exceeding the maximum water level it signals “High water ALARM“. The: position of the mirsimunt liquid level “Pump OFF“ must take into consideration all Inflow conditions and offer an accordingly high safety reserve, in order to prevent the centrifuga! pump 7 from sucking in air and no longer conveying liquid.

With the operation of the lifting system, liquid Sows through the flow pipe 12 into the collection container 11. With m accordingly high liquid level in the collection container 11,. tire control device 9 receives the command “Pumping operation ON” from the float switch .13 % means of a switching signai. The centrifugal pump 7 is now switched on by the control device 9. Consequently, the liquid level in the collection container I I falls. As soon as the minimum liquid level is reached, the centrifugal pump 7 is switched off,

Figure 3 shows a lifting system that is equipped with a device according to the invention. This lifting system also has a centrifugal pump 14 with electric moto:· 1.5, and also a collection container 16 and an Inflow pipe 17, The centrifugal pump 14 can he switched on or off by a programmable control device IS connected to the electric motor 15, The control device IS is equipped with a tints measuring device 19 and a memory device 20, The control device IS is provided with a display and/or operating means, which are .not illustrated here, A plurality of sensors 21, 22, 23 and 24 are arranged on the collection container 16 at different heights externally on the container wall, in each ease for detection of a liquid level. The sensors 21, 22, 23 and 24 are connected to fee control device 18. Compared with the lifting system known from Figure 2, a plurality of switch-off levels, here two, are now provided for the centrifugal pump 14 and are designated by “Pump OFF 1” and by "'Pump OFF 2". The sensor 22 detects the liquid level “Pump OFF 2” and the sensor 21 arranged feerebelow detects the liquid le vei “Pump OFF 1”. The sensors 23 and 24 detect a measurement level “Measurement START” and a measurement level *M«.astfrsme»t END” respectively for measuring a rise time of the liqnid level in fee collection container 16. The sensor 24 is used at fee same time to measure a liquid level “Pump ÖN”, Le. the swilch-os level of the centrifugal pump 14, which is this exemplary embodiment coincides with: the liquid level “Measurement END”. However, other positions of the selected measurement levels are also possible.

During operation of the lifting system equipped with the device according to the invention, liquid flows through the inflow pipe 17 into the container 16. If the pump 14 is switched oil, a liqnid level in fee container id rises. As soon as the liquid level “Measurement START” is reached, the measurement of the rise time of the liqnid level in the container 16 is started in the control device 18 using the time measuring device 19. As soon as the liquid level “Measurement END" is reached, the measurement of fee rise time Is concluded. The inflow quantity cap be determined as inflow volume per unit of time from the rise time and fee known container volume. As soon as the liquid level “Pump on” is reached, the centrifugal pump 14 is switched on by the control device 18, The pumping process causes fee liquid level in fee container Id to fail. The pumping process is continued as far as the liquid level “Pump OFF 2” or as far as the level “Pump OFF 1” depending tut fee determined inflow quantity. The control device 18 in this case selects the switch-off le vel of the pump from the various switching levels os a function of the fellow quantity. If fee Inflow quantities are not so great, the switch-off level will correspond to the liquid level “Pomp OFF 1”, If the Inflow quantities are high, a greater safety reserve in relation to the container base is necessary so that: swirling created in the container and associated inclusions of air do not lead to a suction of air at the centrifugal pump 14. The control device IS can use the appropriate sensor 21 or 22 for evaluation as a function of the inflow quantity and in accordance wife the desired swltch-otî level, and, on tbs basis of the switching signal of said sensor, can determine a switching condition whereupon fee centrifugal pump 14 is switched off.

By means, of such operation in accordance with: the method according, to the invention, a reliable operation of the device and of fee Sifting system equipped therewith Is ensured also wife intlow-induced swirling in fee container 16 and resultant inclusions of air in fee conveyed liqnid.

Alternatively, the inflow quantity is measured by a measuring device {not illustrated here) arranged at fee inflow pipe 17. The flow quantity can be measured continuously by a measuring device of this type, for example an ultrasonic flowmeter or a magnelically inductive flowmeter. Tits inflow quantity can therefore he measured at any moment and independently of any pumping processes of the pump 14 currently taking place. A continuous consideration of the flow quantity leads to m even snore exact adaptability of the switch-off levels to the carrent conditions.

Figure 4 shows a further system, which is equipped with an alternative device likewise corresponding to the invention. Here, a control device 18 Is connected tojást one level sensor .25 tor sensing: the liquid level. The sensor 25 is able to detect a plurality of different liquid levels in the collection container lé. The sensor 25 thus enables the sensing of all necessary levels for controlling the centrifugal pump 14. The illustration shows a switch-on level of the pump 14 “Pump ON’', a plurality of diiferettt switch-off levels ‘‘Pump OFF Γ’, “Pump OFF 2“, “Pomp OFF 3” and “Pump OFF 4’’ and also two measurement levels “Measurement EM D” and "Measurement START” for measuring a rise time of the liquid lével in the container 16, The level sensor 25 consists of a .float 26, of which the lifting movement (caused by a change in the liquid level in the container 16} causes a shaft 28 to rotate via a rod 27, and also consists: of a sensor electronics unit 29. which converts the rotary movement of the shaft 28 into an output signal. This can be implemented for example by means of a potentiometer connected to the shaft 28. The sensor electronics unit 29 is connected to the control device 18 and provides this with an output signal, which is standardized where necessary.

During operation liquid flows through the inflow pipe 17 into the collodion container 16, whereupon, If the esnirifoga! pump 14 is switched off, the liquid level in the collection container 16 rises. The measured values sensed by the level sensor 25 and transmitted in the form of a sensor output signal to the control device 18 are monitored continuously Is the control device 18 for an overshoot or undershoot of certain, predefinable limit values in order to control the necessary switch on and switch-off actions of the centrifugal pump 14 and also in order to identify start and stop levels of a rise time measurement, As soon as the liquid level has reached “Measurement START”, the measurement of the rise time of the level in the container 16 is started in. the control device 18 using the time measuring device 1:9. As soon as the liquid level has reached “Measurement END”, the measurement of the rise time is concluded. Since, 1rs the shown exemplary embodiment, the liquid level “Pump ON” is reached at the same time, the centrifugal pump 14 is switched on by the control device 18, The pumping process then causes the liquid level in the collection container 16 to fall. Fhe control device decides, as a function of the determined Inflow quantity, which of the predefined switch-off levels “Pump Off 1” to “Pump OFF 4” ls: relevant, the centrifugal pump 14 being switched off once the liquid level reaches at foils below this level.

Besides, a lower connection effort, the presented solution allows a more flexible and finer gradation: of switching levels -and/or measuring levels. A raising and/or a lowering of switch-off levels or also a fixing of measurement levels for measuring the rise tithe can be implemented by a plurality of individual, specific liquid levels (as presented here for the sake of clarity}, hut can also be implemented continuously using a level sensor of this type. The control device 18, Specifically with its algorithms, is: able to form any switching levels and/or measuring levels. Here, the limit values of individual and/or all switching and/or measuring levels are defined in the control device 18. For this purpose different switching levels and/or measuring: levels are stored and/or can fee configured in the control device 18

Claims

and memory device 20 thereof aad are «»ed: depending on the system condition, Ab assignment can he ntade by mesas of a stored table, whereto, by way of example, different alternative switch-off levels are stored in a table as a function of the inflow quantity, Stored formates can: also be used to determine the desired switching levels in another way. A switch-off level is provided particularly easily as a fonction of the measured rise time. For this purpose a polynomial is stored ex works m the control device 18 in the memory device 20 and, daring operation of the device according to the invention, allows a determination of a switch-off level by meat» of the stored formula correlation or polynomial. A long measured rise time leads to a relatively lower switch-off level located closer to the container base, and a short rise time leads to a. relatively higher switch-off level. A “High water ALARM” can also he provided with the level sensor 25. in. addition, combinations with sensors having one or more individual switching positions are provided. Sensors having other measurement: principles, such: as other float sensors, hydrostatic pressure sensors, ultrasonic sensors:, or optical, capacitive or microwave sensors, are also suitable as sensors for sensing the liquid level If the centrifugál pump 14 is connected to a frequency converter for speed régulation, the control device 18 can: he integrated therein. The devices and methods described is. Figure .3. and Figure 4 can also be used, with containers in which more than oae centrifugal pump is arranged. Here, the switch-off level is: adapted for just one pump, for a number of pumps, or for all pumps, színtfOggó szivatty úvezérlés Szabadalmi igénypontok

1, Szerkezet egy vagy több szivattyúval (14): felszerelt foíyadéktartállyal (16), egy vezérlőegységgel (IS), atnely egy' vagy több szivattyút (14) be- vagy kikapcsol a tartályban (16) levő folyadékszint magasságának függvényében, valamint egy vagy több, a vezérlőegységgel (18) összekötött érzékelővel (21, 22, 23, 24, 25) egy vagy több folyadékszint, különösen a szivattyúk (14) bekapcsolási és kikapcsolást szintjének megállapításéra, azzal Jellemezve, hogy a szerkezét az. üzemelés során a szivattyúk (14) legalább egyikének .kikapcsolást szintjét a tartály (16) által befogadandó folyadék beáramló mennyiségének függvényében Igazítja be. l> Az 1, igénypont szerinti szerkezei, azzal jellemezve, hogy nagy beáramló mennyiségnél a szivattyúk (14) kikapcsolási szintiéi megemeli és/vagy kis beáramló mennyiségnél a szivattyúk (14) fcifeapesolási szintjét lesüllyeszti.
3. Az I. vagy 2. igénypont szerinti szerkezet, azzal jellemezve, hogy megállapítja a beáramló folyadék időegység, alatt átáramló mennyiségét. 4, A 3 . igénypont szerinti szerkezet, aszal jellemezve, hogy a beáramló mennyiséget a folyadékszint legalább két mérési színt közötti emelkedési idejének: mérése révén állapítja meg:. 5. A 4. igénypont szerinti szerkezet, azzal jellemezve, hogy első mérési szintként egy szivattyú (14) bekapcsolási szintje van választva és egy második mérést színt ez alatt van elrendezve. 6. .4 3-5. igénypontok bármelyike szerinti szerkezet, azzal jellemezve? hogy a. beáramló mennyiség megállapítása a szivattyúk (14) álló helyzetében és egy szivattyú (14)- minden egyes bekapcsolása előtt történik.
7. Az l*ő. ígénvpomok bármelyike szétlőtt szerkezet, azzal jetlemazw,, hogy a vezérlőegység (IS) a szivattyúk (14) bekapcsolást szintiéit a beáramló mennyiség tóggvényében több különböző kapcsolási szint közül választja ki.
8. Az i-7, igénypontok bármelyike szerinti szerkezet, ezzel jellemezve? hogy a kapcsolási és/vagy mérési szintek egy vagy több egyedi kapcsolási helyzetiéi rendelkező érzékelők (21, 22, 23, 24) által vannak megadva.
9. Az 1-8. igénypontok bármelyike szerittís szerkezei, ezzel jellemezve, hogy a vezérlőegység (18) egy több folyadékszint megállapítására alkalmas érzékelővel (25) van összekötve. IS, A 9. igénypont- szerinti szerkezet, azzal jellemezve, hogy folyamatos kimenőjellel rendelkező érzékelője (25) van. IL A 9. vagy 10. Igénypont szerinti szerkezet, azzal jellemezve? bogy a vezérlőegység (18) egy vagy több kapcsolási és/vagy mérési szintet képez.
12, Az 1-11. igénypontok bármelyike szerinti szerkezet, azzal jellemezve? hogy a beáramló mennyiség mérése egy s bevezető csövön (17) elrendezeti mérőeszköz által történik,
13, Az 1-12 . igénypontok bármelyike szerinti szerkezet, azzal jellemezve, hogy s folyadékszint mérése egy vagy több, kívül a tartályon (lő) elrendezett érzékelő (21, 22, 23, 24) által lönénik.
14, Az 1-13. igénypontok bármelyike- szerinti szerkezet, azzal jellemezve, hogy a folyadékszint mérése egy a tartályban (lő) elrendezett úszó (26) által történik, amelynek emelkedési mozgása egy a folyadékszintnek megfelelő kimenőjellé van átalakítva.
15, Az 1-14. igénypontok bármelyike szerinti szerkezet, ázzál jellemezve* bogy eszközei vannak megengedhetetlenöl nagy beáramlást ntsábyiségek felismerésére és/vagy eszközéi vannak riasztások létrehozására. lő. Eljárás, foként egy &z 1-15. igénypontok bármelyike szerinti szerkezet vagy egy Ilyennel felszerelt berendezés özeméit elésére, ame ly e lj árásnál egy vagy több szivattyút (14) be - vagy klkapcsolúsk egy folyadéktartáiyban (16) levő folyadékszint magasságának függvényében és sgy vagy több folyadékszintet, főként a szivattyúk (14) bekapcsolási és kikapcsolást szintjét egy vagy több, egy vezérlőegységgel (IS) összekötött érzékelő (21, 22, 23, 24, 25) által határozzak még, azzal jellemezve. hogy az üzemelés alatt a szivattyúk (14) legalább egyikének folyadékszintjét a tartály (lö) állal befogadandó folyadék beáramlást mennyiségének függvényében igazítják be. Π, A 16. igénypont szprinti eljárás, azzal jellemezve, hogy nagy beáramlás? mennyiségnél a szivattyúk (14) kikapcsolást szintjét megemeljük ús/vagy kis beáramló mennyiségaél a szivattyúk (14) kikapcsolás! szint] ét lesüllyészt] ök. IS. A ló. vagy í?. Igénypont szerinti eljárás, a zzál jellemezve, hogy megél lapítják a beáramló folyadék időegység alatt átáramíó mennyiségét. í% A 1:8. igénypont szerinti eljárás, azzal jellemezve, hogy a beáramló mennyiséget a folyadékszint legalább kát mérési színt közötti emelkedés? idejének mérése által állapítjuk meg. 21), A 19, igénypont szerinti eljárás, azzal jellemezve, hogy első mérési szintként egy szivattyú (14) bekapcsolási pontját választjuk, és egy második mérési szintet ez alatt rendezőnk el, 21. A 18-20. igénypontok bármelyike szerinti eljárás, .azzal jellemezve, hogy a beáramló mennyiség megállapítását a szivattyúk. (14) álló helyzetében és egy szivattyú (14) minden egyes bekapcsolása előtt végezzük. 22. A 16121. igénypontok bármelyike szerint? eljárás, azzal Jellemezve, hogy á beáramló mennyiségtől függően á szivattyúk (14) kikapcsolást szintjeit több különböző kapcsolási szintből választjuk ki 23. A 16-22, igénypontok bármelyike szerinti eljárás, azzal jellemezve, hogy a kapcsolási es mérési szinteket egy vagy több egyedi kapcsolási helyzetű érzékelő (21. 22, 23, 24) által adjuk meg. 24. A. 16-23. Igénypontok bármelyike szerinti eljárás, azzal jellemezve, hogy több folyadékszintet egy vezérlőegységgel (IS): Összekötőit érzékelővel (25) érzékelünk, 25. A 24. Igénypont szerinti eljárás, azzal jellemezve, hogy egy folyamatos kimenőjelet adó érzékelőt (25} alkalmazunk. 26. A 24. vagy 25. igénypont szerinti eljárás, azzal jellemezve, hogy egy vagy több kapcsolási es/vagy mérési szintet a vezérlőegység (18) által képezünk, 27. A 16-26. igénypontok bármelyike szerinti eljárás, azzal jellemezve, hogy a beáramló mennyiség mérését egy a bevezető csövön (17) elrendezett mérőeszközzel végezzük. 28. A 16-27. igénypontok bármelyike szerinti eljárás, azzal jellemezve, hogy a folyadékszint mérését egy vagy több, kívül a tartályon 06} elrendezeti érzékelővel (21, 22, 23, 24) végezzük. 29. A 16-28. igénypontok bármelyike szerinti eljárás* azzal jellemezve, hogy a folyadékszint mérését egy a tartályban (lő) elrendezett úszóval (26) végezzük, amelynek emelkedési mozgását egy a folyadékszintnek megfelelő kimenőjellé alakítjuk át. 3®. A 16-29. igénypontok bármelyike szerinti eljárás, azzal jellemezve, hogy felismerjük a megengedhetetlenül nagy beáramló mennyiségeket és/vagy riasztásokat hozunk létre.
31. Az 1-15. igénypontok bármelyike szerinti szerkezet alkalmazása emelőberendezéshez.