Gas cooking and / or gas grilling system, pilot burner and method for starting a gas cooking and / or gas grilling system

Abstract

Gas cooking and / or gas grill system (1), comprising: - a main valve (3), - several burner units (4) each with a valve (5), - a pilot burner (6) with a flame detector (7) and an ignition electrode (8), and - a control device (9), wherein the main valve (3) is or can be connected on the inlet side to a gas inlet (10) for connection to a gas source and is connected on the outlet side to the respective valves (5) of the burner units (4) and to the pilot burner (6), wherein the pilot burner (6) has a tube (13) arranged on the burner units (4) with a plurality of gas outlets (22), wherein the flame detector (7) is arranged at one end (14, 15) of the tube (13) and wherein the ignition electrode (8) is arranged at another end (14, 15) of the tube (13), wherein the control device (9) is designed to logically release the valves (5) of the burner units (4) for activation when the flame detector (7) has detected a flame.

Description

The invention relates to a gas cooking and / or gas gridling system, a pilot burner and a method for starting a gas gridling system.In gas cooking and / or gas grill systems, in particular for home use, operation must be secured. This also includes the reliable starting of the gas cooking and / or gas gridding system. In particular, unburned gas must be prevented from escaping into a grill or cooking chamber and accumulating there in order to avoid a risk of splashing.US 2006 / 0 147 861 A1 describes a gas circuit with an ignition flame system for a herds. This comprises ignition tubes from a gas distributor to burner assemblies. Quick couplings are provided between the pilot tubes and the manifold so that the pilot tube can be easily removed. Two or more hoses can be connected to a coupling. A main shut-off interrupts the flow to the hob without interrupting the flow to the oven.DE 297 20 168 U1 describes a gas grill having a plurality of burners arranged at a distance next to one another, which burners can be switched on and off independently of one another, wherein an ignition transfer means is provided which is connected to one end of each burner.EP 2 789 280 B1 describes a gas grill comprising a grilling surface, at least one burner with a line for the passage of gas, a main gas line connected to a gas supply, provided with a shut-off valve and connected to the gas lines, a control unit suitable for controlling the shut-off valve, and a control knob having a first position enabling the passage of gas through the shut-off valve. The control button has a second monitoring position that allows the user to remotely monitor and control operation of the grill by a remote control unit, activate the control unit, and contact the control unit with the remote control unit by exchanging instructions.DE 22 22 260 C2 describes a control circuit for a burner system having a flame monitor, a noise switch and a program switch which switches on an ignition device and at least one fuel release element in chronological succession and which consists of a plurality of electronic time elements which are functionally connected in series and each have an RC element and a threshold switch, the resistor of the RC element being connected to the input of the threshold switch, the threshold switch being a non-inverting logic gate which is bridged by the capacitor of the RC element, the electronic time elements being connected galvanically in series, time elements being implemented in integrated COS / MOS circuit technology and the elements controlled by the program switch being connected via logic circuits to the time elements connected in series.The object of the invention is to provide a gas cooking and / or gas gridling system and a method for starting a gas cooking and / or gas gridling system, with which in particular the starting of the gas cooking and / or gas gridling system can be ensured.The object is achieved according to the invention by a gas cooking and / or gas grill system having the features of claim 1, a pilot burner having the features of claim 12 and a method having the features of claim 13. Advantageous embodiments of the invention are evident from the dependent claims.In particular, a gas cooking and / or gas grid system is provided, comprising a main valve, a plurality of burner units each having a valve, a pilot burner having a flame monitor and an ignition electrode, and a control device, wherein the main valve is connected or can be connected on the input side to a gas inlet for connection to a gas source and is connected on the output side to the respective valves of the burner units and to the pilot burner, wherein the pilot burner has a tube arranged on the burner units and having a plurality of gas outlets, wherein the flame monitor is arranged at one end of the tube and wherein the ignition electrode is arranged at another end of the tube, wherein the control device is configured to logically enable the valves of the burner units for actuation if the flame monitor has detected a flame.Furthermore, in particular a pilot burner for a gas cooking and / or gas grill system with a plurality of burner units is provided, comprising a tube with a plurality of gas outlets, a flame monitor arranged at one end of the tube, and an ignition electrode arranged at another end of the tube.Furthermore, in particular a method for starting a gas cooking and / or gas grill system is provided, wherein the gas cooking and / or gas grill system has a main valve and a plurality of burner units with respective valves and a pilot burner arranged on the burner units, comprising the following steps: opening the main valve of the gas cooking and / or gas grill system, igniting the pilot burner at one end of a pipe of the pilot burner by means of an ignition electrode arranged there, detecting a flame at another end of the pipe by means of a flame monitor, logic releasing the valves of the burner units if a flame is detected at the flame monitor.The gas cooking and / or gas gridling system, the pilot burner and the method make it possible to ensure a starting operation of the gas cooking and / or gas gridling system. This is achieved in particular in that the pilot burner comprises a tube, at one end of which an ignition electrode is arranged and at the other end of which a flame monitor is arranged. The ends relate here in particular to a longitudinal extent direction of the pipe of the pilot burner. This makes it possible to ensure that the pilot burner has ignited over the entire pipe, since the ignition moves stepwise from the ignition electrode toward the flame monitor. The pipe is arranged on the burner units of the gas cooking and / or gas grid system, so that flames of the pilot burner are always available in order to ignite gas emerging from the burner units. By means of the control device, in particular a signal of the flame monitor is obtained and evaluated. The control device is configured to logically enable the valves of the burner units for actuation if the flame monitor has detected a flame. Logic release means here in particular that the valves remain mechanically closed, but can be switched mechanically after logic release in order to supply the burner units with gas. The mechanical switching can take place, for example, on the basis of an operating action of a user and / or by the control device and / or a superordinate grill control device. If, on the other hand, the valves are not logically enabled, they cannot be opened mechanically. This is in particular a logical locking.The flame monitor is in particular an ionization monitor, that is to say ion currents are detected which are carried by ionization which occurs within or on the flame on the pilot burner. For this purpose, the flame monitor provides, for example, a voltage between two electrodes, between which the gas-air mixture or the flame is arranged. In particular, in the presence of a flame, a much larger current is detected due to the ionization than in the absence of the flame. The flame monitor generates in particular a signal corresponding to the presence or absence of the flame, which signal is fed to the control device and which signal is evaluated by the control device. For example, the signal may be compared to a predetermined threshold to determine whether or not a flame is present at the flame monitor. Alternatively, however, other types of flame monitors can also be used in principle.The burner units are arranged next to one another in particular for providing a plurality of cooking, cooking or grilling zones. The burner units comprise in particular elongated, in particular flattened and / or rectangular, housings with a multiplicity of gas outlets from which gas can flow out. The gas outlets are arranged in particular in rows along a direction of longitudinal extent. In particular, the gas outlets can be arranged on both sides at regular intervals over the entire direction of longitudinal extent. The gas cooking and / or gas gridding system has in particular at least two burner units, preferably four or more burner units.The pipe of the pilot burner is arranged in particular below the burner units, as a result of which ignition of gas flowing out of the burner units is facilitated. The tube can be made of stainless steel, for example. The gas outlets on the pipe are arranged in particular at regular intervals, for example at an interval between 1 and 2 cm, over the entire length of the pipe. This ensures propagation of the flame when it is ignited from one end to the other end of the tube. The gas outlets are arranged in particular on an upper side of the pipe, so that the flames are provided on the upper side of the pipe. In particular, it can be provided that the gas outlets are arranged at an upper side at approximately 11 o'clock or approximately 13 o'clock with respect to a round cross section of the pipe. In particular, the tube is arranged on all burner units, that is to say the tube extends in particular over an entire section on which the burner units are arranged. If the burner units are arranged next to one another, for example, with respect to a width, the tube extends over the entire width from the first burner unit to the last burner unit. The tube has in particular a length which corresponds to an extent and a number of the burner units. Depending on the design of the gas cooking and / or gas grill system, the length can be in particular in the range between approximately 10 cm and approximately 1 meter.The main valve and the valves can be electrically controlled and / or regulated in particular, that is to say a state of the main valve and of the valves can be set and / or regulated by means of electrical signals. The main valve and the valves are controlled by means of the control device.Parts of the gas cooking and / or gas grill system, in particular the control device, can be configured individually or collectively as a combination of hardware and software, for example as program code which is executed on a microcontroller or microprocessor. However, it can also be provided that parts are configured individually or combined as an application-specific integrated circuit (ASIC) and / or field-programmable gate array (FPGA). The control device can be part of a superordinate grill control device.An ignition process can comprise, for example, a maximum of 3 cycles each 11 s. These consist of 3 s of flushing operation (main valve is opened, gas fills the pipe, but it is not yet ignited) and 8 s of ignition (main valve remains opened, it is ignited 8 s, i.e. sparks are generated at the ignition electrode), after which the main valve is closed again. As soon as a flame is detected at the flame monitor during the ignition process (or during re-ignition), the ignition process is discontinued and the system enters into regular operation. The ignition can be controlled in particular by the control device or a superordinate grill control device.In one embodiment, it is provided that the logical release includes a release for remote control of the valves. As a result, after the release, the individual valves can be remotely controlled. In particular, it can be provided that a volume flow of the respective valve can be adjusted or regulated directly or indirectly by means of such a remote control. This can be effected, for example, by remote control with the aid of a smartphone or a tablet computer via a communication interface configured for this purpose. In this case, it can be provided in particular that setpoint values for a power, a cooking or grilling stage, a temperature or setpoint values for a volume flow of the gas are predefined, which is then implemented, for example, by the control device and / or a superordinate grilling control device via the actuation of the valves.In one embodiment, it is provided that the flame monitor is arranged at the end of the pipe at which a gas inlet into the pipe takes place. Accordingly, the ignition electrode is disposed at the other end opposite to the gas inlet. This can ensure that the flame is moved over the entire pipe before a flame is detected. After successful ignition, flames are then present over the entire length of the pipe.In one embodiment, it is provided that the control device is configured to keep the main valve open at least as long as a flame is detected at the flame monitor. As a result, the flame detected at the flame monitor can be used not only for safeguarding the starting process, but also for safeguarding the operation. If a flame is detected at the flame monitor, the control device keeps the main valve open on the basis of a signal of the flame monitor corresponding thereto, since it can be assumed that safe operation is possible and gas emerging from the burner units is ignited by the flames emerging at the pipe of the pilot burner. In particular, a state at the flame monitor is checked continuously for this purpose by means of the control device, in particular at regular intervals, for example by comparing a signal from the flame monitor with a predefined threshold value.In one embodiment, it is provided that the control device is configured to close the main valve if the flame monitor does not detect a flame at least for a predefined time. This makes it possible to ensure the operation of the gas cooking and / or gas gridling system. If the flame on the pipe of the pilot burner is extinguished, there is the risk that gas emerging from the burner units can no longer be ignited and accumulates in the grill, cooking or cooking chamber. The extinguishing of the flame is detected by the flame monitor and the control device switches off the main valve on the basis of a signal of the flame monitor corresponding to the extinguishing of the flame. In particular, a state at the flame monitor is checked continuously for this purpose by means of the control device, in particular at regular intervals, for example by comparing a signal from the flame monitor with a predefined threshold value.In one specific embodiment, it is provided that the control device is configured to actuate the main valve and the ignition electrode according to a predefined starting sequence when the flame monitor has detected the extinguishing of the flame. As a result, when the flame is detected at the flame monitor, it is possible to attempt to re-ignite the pilot burner at least for a limited number of attempts. For example, after detecting the extinction of the flame with the main valve opened further, it can be provided to attempt an ignition for a few seconds, to flush a few seconds without an ignition pulse at the ignition electrode with the main valve opened and then to attempt an ignition again for a few seconds by ignition pulses at the ignition electrode. In re-ignition, for example, the ignition operation described above is used. If this procedure is successful, the gas cooking and / or gas gridding system can continue to be operated. If, on the other hand, the procedure is not successful, in particular the main valve is closed by means of the control device.In one embodiment, it is provided that the control device is configured to allow the predefined starting sequence to be passed through again after the predefined starting sequence has been unsuccessfully passed through only after an acknowledgement carried out by a user has been obtained and / or detected. As a result, starting after the flame has extinguished can be limited to a predefined number (e.g. 0, 1, 2,... etc.). The acknowledgement is effected, for example, on an operating element on the grill, which must be actuated by a user, in particular on site, so that the gas cooking and / or gas grill system can be restarted. This can also give the user the opportunity, in particular, to check a state of the gas cooking and / or gas grill system by visual inspection and / or further on-site inspection.In one embodiment, it is provided that the tube is arranged perpendicular to a direction of longitudinal extent of the burner units. This allows particularly effective ignition since the path between the combustion units is minimal. In particular, the tube can thereby be formed with a minimum length.In one embodiment, it is provided that the tube is arranged at respective ends of the burner units opposite the gas inlets of the burner units. This allows ignition to take place at the burner units when the burner units are completely flooded with gas. In other words, the gas from the gas inlet only flows completely through the burner unit before the ignition takes place, since an ignition cannot take place beforehand. Gas then flows briefly from all gas outlets before ignition takes place. This can prevent, in particular, incomplete ignition at the gas outlets of the burner units owing to an uneven gas distribution, that is to say ignition only at a part of the gas outlets.In one embodiment, it is provided that at least one baffle plate for guiding the flame is arranged above the tube. As a result, a flame can be brought up to the burner units in an improved manner, in particular. Furthermore, this can ensure more uniform burning of the gas, since the gas can collect below the flame sheet. A combustion process can be protected by the baffle plate in particular also from possibly occurring disturbing influences, such as, for example, wind blows. The baffle plate has in particular the shape of a projection or a roof and / or an inverted V-shape.In one embodiment, it is provided that the burner units each have a slot-shaped cutout for flame guidance on an underside, wherein the tube is arranged on the slot-shaped cutout. This makes it possible to further improve the ignition of the burner units. The slot-shaped cutout serves in particular to guide a flame from one longitudinal side of a burner unit to an opposite longitudinal side of the burner unit. This can be exploited to ignite both sides of the burner units by means of the flames on the pipe of the pilot burner.Further features for the configuration of the pilot burner and of the method emerge from the description of configurations of the gas cooking and / or gas grill system. The advantages of the pilot burner and of the method are in each case the same as in the embodiments of the gas cooking and / or gas grill system.The invention is explained in more detail below with reference to preferred exemplary embodiments with reference to the figures. The following are shown here: FIG. 1 shows a schematic illustration for illustrating embodiments of the gas cooking and / or gas grill system; FIG. 2 shows a schematic illustration of a burner arrangement in a perspective view from below for illustrating embodiments of the gas cooking and / or gas grill system; FIG. 3 shows a schematic illustration of a burner arrangement in a perspective view from above for illustrating the embodiments of the gas cooking and / or gas gridling system; FIG. 4 shows a schematic illustration of a burner arrangement in a side view for illustrating the embodiments of the gas cooking and / or gas grill system; FIG. 5 shows a schematic illustration for illustrating a signal flow within the gas cooking and / or gas grill system; FIG. 6 shows a schematic illustration for illustrating embodiments of the gas cooking and / or gas grill system; FIG. 7 shows a schematic flow diagram for illustrating embodiments of the method for starting the gas cooking and / or gas gridding system.FIG. 1 shows a schematic illustration for illustrating embodiments of the gas cooking and / or gas grill system 1. the gas cooking and / or gas grill system 1 comprises a burner arrangement 2, which is described in more detail below with reference to the other figures.FIGS. 2, 3 and 4 show schematic representations of a burner arrangement 2 for illustrating embodiments of the gas cooking and / or gas grill system. FIG. 2 shows the burner arrangement 2 of the gas cooking and / or gas grill system from a perspective from below. FIG. 3 shows the burner arrangement 2 of the gas cooking and / or gas grill system from a perspective from above. FIG. 4 shows the burner arrangement 2 of the gas cooking and / or gas gridling system in a side view.The burner arrangement 2 of the gas cooking and / or gas grid system comprises a main valve 3, a plurality of burner units 4 each having a valve 5, a pilot burner 6 having a flame monitor 7 and an ignition electrode 8, and a control device 9.The main valve 3 is fluidically connected on the input side to a gas inlet 10 for connection to a gas source or can be connected there to the gas source. On the outlet side, the main valve 3 is fluidically connected via distributor pipes 11, 12 to the respective valves 5 of the burner units 4 and to the pilot burner 6.The pilot burner 6 has a pipe 13 arranged on the burner units 4 and having a plurality of gas outlets. The flame monitor 7 is arranged at one end 14 of the tube 13, and the ignition electrode 8 is arranged at an opposite other end 15 of the tube 13.The control device 9 is configured to logically enable the valves 5 of the burner units 4 for actuation if the flame monitor 7 has detected a flame.FIG. 5 shows a schematic illustration for illustrating a signal flow within the gas cooking and / or gas grill system as shown in FIGS. 1 to 4. The control device 9 can be part of or form a higher-order control device of the gas cooking and / or gas grid system. The control device 9 can control and / or regulate states of the main valve 3 and the valves 5 directly or indirectly. Furthermore, the control device 9 receives a signal from the flame monitor 7 of the pilot burner 6 and can control the ignition electrode 8 of the pilot burner 6 or cause it to ignite directly or indirectly. The control device 9 comprises in particular at least one computing device, e.g. a microprocessor, and at least one memory. In particular, program code is stored in the memory, which, when executed on the computing device, initiates the computing operations necessary for the method.It can be provided that the logical release includes a release for remote control of the valves 5. For this purpose, corresponding information can be set or changed, for example, in a memory of the control device 9. Furthermore, additionally or alternatively, a corresponding enable signal can be generated and provided. On the basis of this information (or the release signal), the control device 9 or a higher-order control device of the gas cooking and / or gas grid system can allow (or prevent) the remote control of the valves 5.It can be provided that the flame monitor 7 is arranged at the end 14 of the pipe 13, at which a gas inlet into the pipe 13 takes place. This embodiment is shown in Figs. 2 to 4. The gas inlet is effected via the distributor tube 12 at the end 14, where the flame monitor 7 is also arranged. The ignition electrode 8 is arranged accordingly at the other end 15. This can ensure that the tube 13 is completely flooded with gas before ignition can take place at the end 15. The flame then moves from the end 15 at which the ignition took place to the end 14 at which the flame monitor 7 is arranged. If the flame monitor 7 detects a flame, the flames on the entire pipe 13 are already ignited.It can be provided that the control device 9 is configured to keep the main valve 3 open at least as long as a flame is detected at the flame monitor 7.It can be provided that the control device 9 is configured to close the main valve 3 when the flame monitor 7 does not detect a flame at least for a predefined time. The predetermined time may be in the range of one second, for example.It can be provided that the control device 9 is configured to actuate the main valve 3 and the ignition electrode 8 according to a predefined starting sequence when the flame monitor 7 has detected the extinguishing of the flame. For this purpose, in particular the ignition process can be carried out, as has already been described above.It can be provided here that the control device 9 is configured to allow a renewed execution of the predefined start sequence after the predefined start sequence has been passed unsuccessfully only after an acknowledgement 16 carried out by a user has been obtained and / or detected. For this purpose, for example, an operating device 17 can be provided on the gas cooking and / or gas grid system, which is connected to the control device 9 and on which the acknowledgement 16 is detected. After obtaining and / or detecting the acknowledgement 16, the control device 9 initiates the starting sequence again.It can be provided that the tube 13 is arranged perpendicular to a longitudinal extension direction 18 of the burner units 4. This embodiment is shown in Figs. 1 to 4.It can be provided that the tube 13 is arranged at respective ends 19 of the burner units 4 opposite the gas inlets of the burner units 4. This embodiment is shown in Figs. 2 to 4.It can be provided that above the tube 13 at least one baffle plate 20 for guiding the flame is arranged. This embodiment is shown schematically in Fig. 6, which shows a side view and a section through the tube 13, respectively. The gas outlet openings 22 on the pipe 13 are arranged with respect to an axis of symmetry of the opening in particular at an angle of approximately 45° to a surface of the baffle plate 20. The flames begin at the gas outlet openings 22 and are then delimited upward or directed downward by the baffle plate 20. The baffle plate 20 has in particular a downwardly angled section 23, through which the flames are guided downwardly and rise steeply upwardly at an edge of the angled section 23. The baffle plate 20 is fastened to the tube 13 by means of rivet connections 24, for example.It can be provided that the burner units 4 each have a slot-shaped cutout 21 (FIG. 6 ) on an underside for flame guidance, wherein the tube 13 is arranged on the slot-shaped cutout 21. The edge of the guide plate 20 is arranged in particular below the slot-shaped cutout 21.FIG. 7 shows a schematic flow diagram for illustrating an embodiment of the method for starting a gas cooking and / or gas gridling system. The method is carried out, for example, on a gas cooking and / or gas gridding system according to one of the embodiments described above.To start the starting process, it can be provided, for example, that a user issues a command provided for this purpose (e.g., "start"), for example by actuating an operating element provided for this purpose on site on the gas cooking and / or gas grid system, by means of which the method is started.In a method step 100, the main valve 3 of the gas cooking and / or gas gridding system 1 is opened. As a result, gas can pass through the main valve 3 and flow into the pipe 13 of the pilot burner 6 via the distributor pipes 11 and 12.In a method step 101, the pilot burner 6 is ignited at an end 14, 15 of the tube 13 of the pilot burner 6 by means of the ignition electrode 8 arranged there. It can be provided that after the main valve 3 has been opened, a predetermined time is allowed to wait until ignition (for example a few seconds) so that the pipe 13 can completely fill itself with gas. In the ideal case, the ignition has the effect that the gas flowing out there is ignited along an upper side of the pipe 13 at the gas outlets arranged there, so that a chain of flames is produced along the pipe 13 and propagates from one end 14, 15 along the pipe 13 to the other end 14, 15.In a method step 102, a flame is detected at the other end 14, 15 of the pipe 13 by means of the flame monitor 7. For this purpose, in particular an ion current is detected and a signal corresponding to the ion current (or the missing ion current) is generated and transmitted to the control device 9 of the gas cooking and / or gas grid system 1.In a method step 103, the transmitted signal is evaluated by the control device 9. For example, it can be provided that transmitted signals are compared with a value range and / or a predefined threshold value. If the comparison reveals that an ion current has been detected, whereby it is possible to infer the presence of a flame, the valves 5 of the burner units 4 are logically enabled in a method step 104. Subsequently, actuation of the valves 5 for the mechanical opening and closing or positioning is possible. In particular, it can be provided that the logical release includes a release for remote control, for example by means of a smartphone or a tablet computer. If, on the other hand, the comparison shows that no ionic current has been detected, whereby it is possible to infer the absence of a flame, the valves 5 of the burner units 4 are not released. In a method step 105, a corresponding feedback can be generated and provided by the control device 9.After the release, it can be provided that the control device 9 keeps the main valve 3 open at least as long as a flame is detected at the flame monitor 7. For this purpose, a method step 106 repeatedly checks, in particular at regular intervals, whether or not the signal transmitted by the flame monitor 7 still indicates an ion current or the presence of a flame. If this is the case, method step 106 is repeated. If, on the other hand, this is not the case, then in a method step 107, a renewed starting of the gas cooking and / or gas gridding system 1 can be attempted, for example by carrying out a predefined starting sequence, as has already been described above.If the starting process is not successful, which is checked, for example, in a method step 108 (flame is present yes or no), it is provided, in particular, in a method step 109 that the control device 9 closes the main valve 3 if the flame monitor 7 does not detect a flame at least for a predefined time. If the restart is successful, the method returns to step 106.It can be provided that the control device 9 enables a renewed execution of the predefined starting sequence after the predefined starting sequence has been passed unsuccessfully only after an acknowledgement carried out by a user has been obtained and / or detected. For this purpose, provision can be made in a method step 110 for checking whether or not such an acknowledgment is present. If this is present, the system returns to method step 107. If, on the other hand, an acknowledgement is not present, method step 110 is repeated.List of reference characters1 Gas cooking and / or gas grid system 2 Burner arrangement 3 Main valve 4 Burner unit 5 Valve (burner unit) 6 Pilot burner 7 Flame monitor 8 Ignition electrode 9 Control device 10 Gas inlet 11 Distributor pipe 12 Distributor pipe 13 Pipe (pilot burner) 14 End 15 Other end 16 Acknowledgement 17 Operating device 18 Direction of longitudinal extent 19 End (opposite to gas inlet) 20 Baffle plate 21 Slot-shaped cutout 22 Gas outlet opening 23 Angled section 24 Rivet connection 100- 110 Method steps

Claims

Gas cooking and / or gas grid system (1), comprising: - a main valve (3), - a plurality of burner units (4) each having a valve (5), - a pilot burner (6) having a flame monitor (7) and an ignition electrode (8), and - a control device (9), wherein the main valve (3) is or can be connected on the input side to a gas inlet (10) for connection to a gas source and is connected on the output side to the respective valves (5) of the burner units (4) and to the pilot burner (6), wherein the pilot burner (6) has a tube (13), which is arranged on the burner units (4) and has a plurality of gas outlets (22), wherein the flame monitor (7) is arranged on one end (14, 15) of the tube (13) and wherein the ignition electrode (8) is arranged on another end (14, 15) of the tube (13), wherein the control device (9) is configured to logically enable the valves (5) of the burner units (4) for actuation when the flame monitor (7) has detected a flame.Gas cooking and / or gas gridling system (1) according to claim 1, characterised in that the logical release includes a release for remote control of the valves (5).Gas cooking and / or gas gridling system (1) according to claim 1 or 2, characterised in that the flame monitor (7) is arranged at the end (14) of the pipe (13) at which a gas inlet into the pipe (13) takes place.Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the control device (9) is configured to keep the main valve (3) open at least as long as a flame is detected at the flame monitor (7).Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the control device (9) is configured to close the main valve (3) if the flame monitor (7) does not detect a flame at least for a predefined time.Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the control device (9) is configured to actuate the main valve (3) and the ignition electrode (8) according to a predefined starting sequence if the flame monitor (7) has detected the extinguishing of the flame.Gas cooking and / or gas gridding system (1) according to claim 6, characterised in that the control device (9) is configured to allow a renewed pass through of the predetermined start sequence only after obtaining and / or detecting an acknowledgement (16) carried out by a user after the predetermined start sequence has been passed through unsuccessfully.Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the tube (13) is arranged perpendicular to a direction of longitudinal extent (18) of the burner units (4).Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the pipe (13) is arranged at respective ends (19) of the burner units (4) opposite the gas inlets of the burner units (4).Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that at least one baffle plate (20) for guiding the flame is arranged above the pipe (13).Gas cooking and / or gas gridling system (1) according to one of the preceding claims, characterized in that the burner units (4) each have a slot-shaped cutout (21) for guiding the flame on an underside, wherein the tube (13) is arranged on the slot-shaped cutout (21).Pilot burner (6) for a gas cooking and / or gas grid system (1) with a plurality of burner units (4), comprising: a pipe (13) with a plurality of gas outlets (22), a flame monitor (7) arranged at one end (14, 15) of the pipe (13), and an ignition electrode (8) arranged at another end (14, 15) of the pipe (13).Method for starting a gas cooking and / or gas grid system (1), wherein the gas cooking and / or gas grid system (1) has a main valve (3) and a plurality of burner units (4) with respective valves (5) and a pilot burner (6) arranged on the burner units (4), comprising the following steps: - opening the main valve (3) of the gas cooking and / or gas grid system (1), - igniting the pilot burner (6) at one end (14, 15) of a pipe (13) of the pilot burner (6) by means of an ignition electrode (8) arranged there, - detecting a flame at another end (14, 15) of the pipe (13) by means of a flame monitor (7), - logically releasing the valves (5) of the burner units (4) if a flame is detected at the flame monitor (7).

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