DE10057113A1 - Power supply for flue and heat discharge systems, comprises control system with charge condition monitoring unit which is connected with main accumulator - Google Patents

Abstract

The power supply arrangement is designed so that at least one main accumulator (8) is provided as another electrical power source. The capacity of which is greater than that of the emergency current accumulator (9). The control includes a charge condition monitoring unit, which is connected with the main accumulator (8). With the failure to reach a first charge condition minimum value activates a ventilation block, until a second larger charge condition minimum value is exceeded, and which with the failure to reach a third charge condition minimum value, which is lower than the first charge condition minimum value, the changeover unit (14,15) is operated. So that the control and the electrical drives (20,21) are fed from the emergency current accumulator (9).

Description

The invention relates to an energy supply arrangement for smoke and Heat extraction systems with electrical drives according to the generic term of Claim 1.

In the case of smoke and heat extraction systems known from practice - abbreviated SHEV systems - can open ventilation flaps through the electric drives moved from a closed position to an open ventilation position and also for increased smoke and heat ventilation, esp especially in the event of a fire, in an even more open alarm position. The elect For this purpose, drives are powered by a smoke and heat exhaust system. and ventilation control controlled by electrical energy. Norma The supply from an electrical network usually takes place via a trans formator and a rectifier connected downstream, which has a charging capacitor applied for smoothing. Furthermore, it is as far as possible based regulation of mains voltage fluctuations a voltage reg provided. This power supply unit must be constructed in such a way that it high starting currents to the connected - usually parallel switched - drives can be delivered. To a safe ener According to the state of the art, energy supply includes at least one emergency current accumulator, which in the event of failure of the electrical network Energy supply for the electric drives takes over, which is why switch from mains operation to emergency power accumulator operation. The emergency power accumulator should last for a longer period, typically min at least 72 hours, a quiescent current to supply the control, esp especially the smoke exhaust system and ventilation control and then the electric drives with sufficient Can supply energy so that the smoke flaps in twice the fully open alarm position and in between in the closed  Can move position. There is one for charging the emergency power accumulator To provide charging device, which is usually a transformer, a Rectifier with charging capacitor, a charge control and a charge controller includes. - So the technical effort to the electrical Drives of the smoke and heat exhaust system and the associated smoke and heat exhaust system and ventilation control both reliably Normal operation from the electrical network as well as from the To provide emergency power accumulator with energy, considerably. This applies in particular especially for mains operation for the desired regulation of mains voltage fluctuations and for the provision of high starting currents.

The present invention has for its object an energy supplier arrangement for smoke and heat exhaust systems with electrical An driven the genus mentioned to improve that the technical effort for the provision of electrical energy, with which controls the electric drives and controls including the smoke and heat exhaust system and ventilation control, while increasing reliability.

This task is carried out by an energy supply arrangement with the in solved claim 1 specified features.

The solution is based on the principle that not only an emergency power accumulator for safe operation in the event of failure of the primary electrical energy source, typically an electrical network is provided, but that also for the normal operating case at least one accumulator, as the main accumulator designated, is provided, the capacity of which is greater than that of emergency current accumulator, and that the energy output of the main current battery mulators and the emergency power accumulator not only depending on the availability  the primary energy source, but also at least depending on the state of charge of the main battery is controlled.

So even if the primary electrical energy source, in particular an electrical network is undisturbed, the energy supply takes place in it Normal case from the main accumulator, which is easily high for a short time Starting currents of the electric drives can provide required Nominal currents for smoke and heat extraction systems with many parallel ge switched drives without the use of complex three-phase network can supply and the voltage for the electric drives without on keeps agile control circuits largely constant. The main accumulator Tor therefore has a buffer function and acts as a voltage regulator. About that In addition, even if the primary energy source fails, the energy supplier supply of the smoke and heat exhaust system and a quiescent current supply in particular the control from the main accumulator as long as this does not fall below a predetermined limit, namely the third La minimum condition is discharged. Accordingly, an emergency is sufficient current accumulator of a relatively small capacity. To the through The functions of the power supply arrangement are essential the activation of a so-called ventilation lock when a first La minimum state of the main accumulator. This first minimum state of charge is above the end of discharge voltage, in particular according to claim 4 of the third charge is the minimum level. If the ventilation lock is activated, the Main current accumulator still supply the necessary quiescent current and the electrical energy for further driving commands to the electrical drives Provide until the third charge state value falls below will. - The above ventilation lock means that electrical Drives that have a smoke and heat vent in the ventilation position move, are first stopped automatically and then into the  Move the closed position in which they remain until the ventilation lock is canceled again.

According to claim 2, the control with a charging energy failure monitor Chichungseinrichtung equipped which a charging power failure for the Main accumulator and the emergency power accumulator monitors and reports. This allows actuation of the switching device from the position in which the control and the drives are fed from the emergency power accumulator be in the position in which he feed from the main accumulator follows, are commanded when a charging power failure has ended. subsequently, ßend the lifting of the ventilation lock, which falls below the first charge state minimum value is activated, are allowed, when the charging power failure has ended.

The charge state monitoring device can according to claim 3 simply be designed as a voltage monitoring device.

With outputs of the switching device to which the control and the Drives for energy supply from the main accumulator or the emergency current accumulator are connected, according to claim 5 further electrical consumers of the smoke and heat exhaust system and / or associated external power units. For this, a radio interface, a bus interface, a smoke and heat exhaust system interface as well as a ventilation interface, the latter for wiring with quiescent current lines.

Under the terms main accumulator and emergency power accumulator is not understood only one accumulator at a time, but also can Groups of accumulators to a main accumulator respectively Emergency power accumulator can be summarized.  

The principle according to the invention can be combined with various use primary sources of electrical energy; most common is the provision of primary electrical energy by an electri cal network, from which according to claim 6 via a DC voltage generator ger and one charge controller each the main accumulator and the emergency power accumulator can be fed. The DC voltage generator is a Power supply unit or power supply unit with a mains transformer with rectifier and Charging capacitor. Such DC voltage generators are also used in others ren variants of the invention used.

In particular, according to claim 7, the main accumulator and the emergency current accumulator each via a separate DC voltage generator and a separate charge controller from the electrical network with electrical Energy are supplied. The latter division of the energy supplier connection to the electrical network can reduce the security of energy Increase supply arrangement and the selection of less powerful Enable components of the DC voltage generator.

In the course of environmentally friendly electrical power generation can partially serve as the primary electrical energy source a solar energy source, which in the variant according to claim 8 via a solar energy source switch ter in its first switching position with a separate charge controller is connected to the main accumulator and the emergency power accumulator. In the second switch position of the solar source switch, however, is Solar energy source via an inverter with an electrical network connected to the recovery of excess solar energy. The solar energy Source switch is through the charge condition monitoring device the control switchable and is switched to the second switch position switches when the main accumulator and the emergency power accumulator their  Have reached the end of charge voltages, i.e. are no longer being charged should.

In extension of the above variant can according to claim 9 partly used two solar energy sources as an electrical energy source be, with one of the two solar energy sources belonging to one gen solar energy source switch in its first switch position with the Main accumulator or with the emergency power accumulator in Ver bond can be brought. In another, namely the second Switching position of the solar energy switch is via a common Inverters feed energy back into the electrical grid, which leads to on charge of the main accumulator and / or the emergency power accumulator is needed. The energy recovery is in this extended variant strengthened by the fact that it does not require that both the main battery mulator and the emergency power accumulator are fully charged, but it the charging energy is fed back, each for charging the main accumulator or the emergency power accumulator is dispensable.

In the variant according to claim 10, the charge of the main accumulator tors and the emergency power accumulator also reliably take place when solar energy, for example due to the weather, does not do this enough. In this case, the La used by changing an energy source switch into one Changing switching position is actuated, the actuation depending on the can be generated with the voltage generated by the solar energy source. Überschüs not to charge the main accumulator and the emergency power accumulator The required solar energy can in turn be fed into the inverter electrical network can be fed back. Between the electrical network and the charge controller is a power supply unit as a DC voltage generator wise power supply inserted.  

An advantageous combination of two solar energy sources with auxiliary Provision of the electrical network as the primary energy source is in An pronounced 11. The main accumulator and the emergency power accumulator are charged via separate charge controllers, primarily from the solar energy energy sources are fed and only when the energy supply is too low through the solar energy sources either via a common DC chip voltage source - mains transformer with rectifier and charging capacitor - or be charged via two separate DC voltage sources. A Excess solar energy is fed back via a common one Inverters in the electrical grid as soon as either the main battery lator or the emergency power accumulator reaches its final charge voltage Has.

The invention is based on a drawing with 5 figures purifies in the simplified circuitry of the power supply arrangement are shown, namely:

Fig. 1 A basic version with an electric power as the primary source of electrical energy for charging the Hauptakkumulators and Notstromakkumulators via a common direct current source,

Fig. 2 as a first variant of an arrangement according to Fig. 1, but with two separate direct voltage generators for charging the main battery and the mulators Notstromakkumulators,

Fig. 3 shows a second variant with a solar power source for charging the Hauptakkumulators and Notstromakkumulators,

Fig. 4 shows a third variant with two solar energy sources, one of which is connected to charge the main accumulator and one to charge the emergency accumulator, and

Fig. 5 as a fourth variant of a solar energy source, which is used in addition to charging the main accumulator and the emergency power accumulator for energy recovery in an electrical network.

In the basic version according to FIG. 1, an electrical network 1 is connected via a network transformer 2 and a rectifier 3 with a charging capacitor ( 4 ) to inputs of an energy supply controller 5 , which are not shown, which is shown only as a block. At outputs of the energy supply control 5 , a main accumulator 8 or an emergency power accumulator 9 is connected via a charge controller 6 or 7, respectively. From these lines 10 and 11 lead back to the energy supply control, to a separate charge state monitoring device contained therein for the main accumulator and the emergency power accumulator. The energy supply controller 5 further contains at least one charging energy failure monitoring device which reports a charging energy failure for the main accumulator and the emergency power accumulator.

Furthermore, the power supply control has 5 outputs 12 and 13 for controlling a switching relay consisting of switching relays 14 , 15 and an output 16 for actuating a ventilation lock.

Via the changeover relays 14 , 15 , which are drawn in the normal position, the direct current energy required for controlling and actuating a smoke and heat extraction system is alternatively taken from the main accumulator 8 or the emergency power accumulator 9 . This direct current energy is fed via one of the lines 17 , 18 into a smoke and heat exhaust system and ventilation control 19 , which is shown as a block and is abbreviated as SHEV and ventilation control. At not designated outputs from the SHEV and ventilation control 19 , the electric drives to be actuated by this are connected, for example the electric drives 20 and 21 , which can also be represented as a group of drives.

The SHE and ventilation control 19 can receive control commands from an ex-internal periphery 22 via a ventilation interface 23 , an SHE-interface 24 , the connection to the periphery being able to be made via streamlined rest. Furthermore, a bus interface 25 and a radio interface 26 are provided in the SHE and ventilation control 19 , via which SHE control commands, ventilation control commands and feedback can also be transmitted.

With the described basic energy supply design, the method according to the invention is carried out, according to which the energy supply of the SHE and ventilation control system by means of a quiescent current and corresponding commands, the energy supply of the electric drives 20 , 21 via the lines 17 , 18 in the normal case it follows from the main accumulator 8 , which has a higher capacity compared to the emergency power accumulator 9 , the main accumulator 8 and the emergency power accumulator 9 also serving as a buffer during a charging process from the electrical network 1 via the direct voltage source with the transformer 2 , the rectifier 3 and the charging capacitor 4 . Controlled by the energy supply control 5 , the switching relays 14 , 15 are in emergency operation in their position shown in FIG. 1. For daily ventilation, on the other hand, the drives 20 , 21 are fed exclusively from the main accumulator 8 if a corresponding ventilation command is received in the RWA and ventilation control 19 , for which purpose the changeover relay 14 , 15 is switched over. At the gearbox 20, 21 can drive as long as in the ventilation position and remain until the main accumulator 8 falls below a first charge state minimum value which is detected by the charge state monitoring device in the power supply controller. 5 When this condition is detected and reported, the ventilation lock is activated via the output 16 of the energy supply control 5 in the SHEV and ventilation control 19 . A notification of the failure of the charging energy from the rectifier 3 and charging capacitor 4 is also reported in the energy supply control 5 . After the charge of the main accumulator 8 has been reinstated, the ventilation lock remains activated until the main accumulator 8 is sufficiently charged and exceeds a second minimum charge state value, which in turn is detected by the charge monitoring device in the energy supply controller 5 . After activation of the ventilation lock, quiescent current can continue to be fed from the main accumulator 8 via the switching relays 14 , 15 into the SHEV and ventilation control 19 , whereby in the same way, but not shown, the power supply control 5 can also be supplied.

The SHE and ventilation control as well as the energy supply control are also referred to collectively as controls.

Only when the idle current draw in the absence of a charge falls below a third minimum charge state value of the main accumulator 8 , which is preferably equal to the final discharge voltage, is a changeover of the switching relays 14 , 15 triggered by detection of this charge state with the charge state monitoring device in the power supply controller 5 , so that now the emergency power accumulator 9 ver relatively small capacity, the quiescent power supply of the control, in particular the SHE and ventilation control 19 can take over 72 hours and enough energy to control all drives, including the drives 20 , 21 when SHE commands occur , especially in the case of a prescribed command sequence with which the driver first goes to the alarm position within 15 minutes, then to the closed position and finally back to the alarm position after the charging energy has failed t.

As soon as the charging energy is available again, the energy supply from the main accumulator is switched back to. When it comes ie after resumption of the loading operation to a renewed SHE activation, the electric drives 20, 21, wherein the charge can be used reserves first back over the actuated through the power supply controller 5 changeover relay 14, are acted upon 15 from the main accumulator 8 can. The ventilation lock is then lifted when the main accumulator 8 reaches a second minimum state of charge value which is greater than the first minimum state of charge value and in any case greater than the third minimum state of charge value at the discharge voltage.

For the following described variants of the basic design above, the same components of the energy supply arrangements shown are provided with identical reference numerals as the basic design according to FIG. 1.

In the first variant of the power supply arrangement according to FIG. 2, the described direct current source, consisting of the transformer 2 connected to the electrical network 1 with a downstream rectifier 3 and charging capacitor 4 , serves only for charging the main accumulator 8 via its charge controller 6 and a modified energy supply control 27 .

The modified power supply control 27 has a further input 28 , which only takes charge energy for the emergency power accumulator 9 , which in turn can be charged via the associated charge controller 7 . The input 28 is also supplied from the electrical network 1 , but via a separate direct current source with a transformer 29 , a rectifier 30 and a charging capacitor 31 .

Apart from the separate charging option for the main accumulator 8 and the emergency power accumulator 9 , the function of the first variant is the same as that of the basic version.

The second variant according to FIG. 3 differs from the basic embodiment in that the charging energy of the main accumulator 8 and the emergency accumulator 9 is not taken from the electrical network 1 - as the primary electrical energy source - but from a solar energy source 32 , which is a Solar cell arrangement is. The solar energy source 32 can be connected via a solar energy changeover switch 33 , a changeover relay, to inputs 34 , 35 of a modified energy supply control 36 . There is a connection between the input 35 and an output 37 of the modified power supply control 36 , so that an inverter 38 for energy recovery in the grid 1 - can be acted upon by the solar energy source 32 via the solar energy switch 33 and the input 35 . In the position shown, the solar energy switch is connected to the input 34 for charging the main accumulator 8 and the emergency power accumulator 9 . A switchover to the input 35 takes place when the main accumulator 8 and the emergency power accumulator 9 have reached their end-of-charge voltages, after which the solar energy no longer required as charging energy is fed back into the network 1 .

The third variant of the energy supply arrangement according to FIG. 4 differs from the second variant according to FIG. 3 in that the solar energy source 32 is used only for charging the emergency power accumulator 9 via the associated charge controller 7 , whereas for charging the main accumulator 8 it is used Charge controller 6 a second solar energy source 32 ', also a solar cell arrangement, is provided. This is connected to a separate second solar energy source changeover switch 39 , also a switching relay, optionally with an input 40 or 41 of a modified power supply control 42 . Outputs 43 and 44 of the modified power supply control are internally connected to inputs 35 and 41, respectively, and lead to inverter 38 . The inverter 38 is again provided for energy recovery in the grid 1 . In the position of the solar energy source switch 33 and 39 shown in FIG. 4, the emergency power accumulator 9 from the solar energy source 32 and the main accumulator 8 from the solar energy source 32 'are charged independently of one another until their final charging voltage is reached. When the final charge voltage is reached, the solar energy changeover switch 33 or 39 is moved individually into the other switching position, in which a connection is established between the solar energy source 32 or the solar energy source 32 'to the inverter 38 and solar energy not required for charging into the network 1 ' is fed back.

The fourth variant of the energy supply arrangement according to FIG. 5 differs from the second variant according to FIG. 3 in that the main accumulator 8 and the emergency power accumulator 9 can primarily obtain their charging energy from the solar energy source 32 , but alternatively from the one in the case of inadequate energy supply electrical network 1 'as the primary electrical energy source. This purpose, a power source switch 45, which connects in the illustrated preferred gear position So larenergiequelle 32 with the charge controllers 6 and 7 of Hauptakkumulators 8 and the Notstromakkumulators 9, but in the other switch position with the direct current source consisting of the transformer 2, the rectifier 3, and the charging capacitor 4 , the transformer being connected to the network 1 'as the primary electrical energy source.

A recovery of solar energy, which is not required for charging the main accumulator 8 and the emergency power accumulator 9 , into the network 1 'is via a switching element 49 ' of an energy source switch and a further modified energy supply control 46 , namely its input 47 and output 48 via the inverter 38 possible. The excess solar energy is fed back when it is detected in the modified power supply control 46 that the main accumulator 8 and the emergency power accumulator 9 have reached their final charge voltage. In this case, a further switching element 49 is opened, which belongs to the energy source lenumschalter.

Claims (11)

1. Power supply arrangement for smoke and heat exhaust systems with electric drives ( 20 , 21 ), with an emergency power accumulator ( 9 ) that can be charged from a primary electrical energy source, with a switching device ( 14 , 15 ) which is actuated by a controller and via which the drives ( 20 , 21 ) and other consumers, such as the control system, are fed from the emergency power accumulator ( 9 ) or in normal operation from another electrical energy source, characterized in that
that at least one main accumulator ( 8 ) is provided as the other electrical energy source, the capacity of which is greater than that of the emergency power accumulator ( 9 ),
that the control comprises a charge state monitoring device which is connected to the main accumulator ( 8 ) and, when the value falls below a first minimum charge state, activates a ventilation lock until a second larger minimum charge state value is exceeded, and which falls below a third minimum charge state value which is lower than that is the first charge state minimum value, the switching device ( 14 , 15 ) is actuated, so that the control and the drives ( 20 , 21 ) are fed from the emergency power accumulator ( 9 ). 2. Power supply arrangement according to claim 1, characterized in that the control comprises a charging energy failure monitoring device which reports a charging energy failure for the main accumulator ( 8 ) and the emergency power accumulator ( 9 ), which actuates the switching device ( 14 , 15 ) from the position, in which the control and the drives ( 20 , 21 ) for smoke and heat vent activation are fed from the emergency power accumulator ( 9 ), into the position in which the feed from the main accumulator ( 8 ) is commanded when a charging power failure has ended, and which allows a subsequent lifting of the ventilation lock, which is activated when the charge level falls below the first minimum charge value, when the charging energy failure has ended. 3. Power supply arrangement according to claims 1 and 2, characterized, that the charge state monitor as a voltage monitoring device is formed. 4. Power supply arrangement according to claim 3, marked by, a dimensioning of the voltage monitoring device that the third minimum state of charge is the final discharge voltage of the main accumulator. 5. Power supply arrangement according to one or more of the preceding claims, characterized in that with outputs of the switching device ( 14 , 15 ) to which the control and the drives ( 20 , 21 ) are connected, further electrical consumers of a smoke and heat exhaust system and / or are connected to associated external power units. 6. Power supply arrangement according to one or more of the preceding claims, characterized in that the primary electrical energy source is an electrical network ( 1 ), which via a DC voltage generator ( 2 , 3 , 4 ) and each egg NEN charge controller ( 6 , 7 ) the main accumulator ( 8 ) and the emergency power accumulator ( 9 ) is connected. 7. Power supply arrangement according to one or more of claims 1-5, characterized in that an electrical network ( 1 ) is used as the primary electrical energy source, which has a respective direct voltage generator ( 2 , 3 , 4 ; 29 , 30 , 31 ) and each a charge controller ( 6 , 7 ) is connected on the one hand to the main accumulator ( 8 ) and on the other hand to the emergency power accumulator ( 9 ). 8. Power supply arrangement according to one of claims 1-5, characterized in that the primary electrical energy source is a solar energy source ( 32 ) via a solar energy source switch ( 33 ) in its first switching position via a charge controller ( 6 , 7 ) with the main accumulator gate ( 8 ) and the emergency power accumulator ( 9 ) is connected and in its second switching position via an inverter ( 38 ) with an electrical network ( 1 ') excess solar energy is fed back into this, and that the solar energy source switch ( 33 ) by Charge status monitoring device of the control can be switched into the second switch position when the main accumulator ( 8 ) and the emergency power accumulator ( 9 ) have reached their final charge voltages. 9. Power supply arrangement according to one of claims 1-5, characterized in that the primary electrical energy source comprises two solar energy sources ( 32 , 32 '), one of which has one switch each via a solar energy source switch ( 33 , 39 ) in the first switching position of each Charge controller ( 6 , 7 ) can be connected to the main accumulator ( 8 ) or to the emergency power accumulator ( 9 ) and, in its second switching position, connects excess solar energy to an electrical network ( 1 ') via a common inverter ( 38 ) is, and that each of the solar energy source switch independently of the other by a charge state monitoring device, which monitors the main accumulator ( 8 ) or the emergency power accumulator ( 9 ), can be switched to the second switch position when the final charging voltage of the main accumulator or the emergency power accumulator is reached. 10. Power supply arrangement according to claim 8, characterized in that instead of the solar energy source ( 32 ) alternatively the electrical network ( 1 ') serves as the primary energy source, in which excess solar energy via the solar energy source switch ( 49 , 49 ') and the inverter ( 38 ) Can be fed back and that the solar energy source ( 32 ) or the electrical network ( 1 ') can be connected to the main accumulator ( 8 ) and the emergency power accumulator ( 9 ) via an energy source switch ( 45 ) and via the associated charge controller ( 6 , 7 ). 11. Power supply arrangement according to claim 9, characterized, that instead of one of the two solar energy sources, alternatively that electrical network serves as the primary energy source, in which surplus solar energy via at least one of the solar energy sources switch is regenerative, and that each one of the two solar energy swell or the electrical network via an energy source switch ter and via the associated charge controller with the main battery mulator or the emergency power accumulator can be connected.