JP2014216027A - Smoke detection unit, smoke detection system, and smoke detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a redundancy fire detection device, which is easily assembled, of which space is saved as far as possible, and which can be particularly excellently incorporated in an inboard monitoring system, to each of all holds of an ocean vessel.SOLUTION: A smoke detection unit 10 has a casing for detection of smoke by a test gas, has at least one integrated smoke detector and an intake 11 of the test gas in the casing, and has a device connected to a suction apparatus 6 of one test gas and/or the suction apparatus 6 of the test gas and a signal device. These components are configured as an integrated body, and furthermore a communication/analysis unit 30 is connected to distant smoke detectors 27, 28, 33, 34 by a signal connection device 21 and data transmission parts 25, 26. Moreover, a dust filter is installed in each of the smoke detectors 27, 28, 33, 34, and/or air flow monitoring in a test chamber is preliminarily contemplated.

Description

  The present invention relates to a smoke detection unit provided with a case for informing about smoke in a sample gas, and more particularly to a smoke detection unit for deployment on a ship, at least one smoke detection device incorporated in the case, and at least one sample. It includes a gas inlet, a medium and / or sample gas inlet for connection to the sample gas inlet, and a signal output.

  Furthermore, the present invention relates to a smoke detection system for redundancy monitoring of a ship's hold, for supplying at least one smoke detection unit based on the superordinate concept of claim 1, sample gas from each hold to the smoke detection unit. It includes at least one air intake device, and a detector (preferably a smoke detector device) having a data line, which can be arranged in each hold (preferably air duct) in a number corresponding to at least the number of holds to be monitored.

  Finally, the present invention relates to a smoke detection device, particularly as a component of a smoke detection system according to any one of claims 8 to 10, for attachment to an air duct of a ship hold, the flow of gas to be monitored in the air duct A sampling tube that is arranged transversely to the direction and has a radial hole for inflow of the monitoring target gas, an exhaust pipe that is disposed in parallel to the sampling tube to collect the monitoring target gas in the air duct, and the monitoring target gas Includes a sample chamber for connecting the sampling tube to the exhaust pipe so that the gas can flow from the sampling tube toward the exhaust pipe, and a smoke detector disposed in the sample chamber.

A cargo ship uses a so-called suction smoke detector to detect a fire in the hold. In this apparatus, a special ventilation fan is used, sample gas is drawn from the hold to be monitored through the Co ₂ fire extinguishing pipe, and the smoke of the sample gas is inspected using special equipment. Which hold the sample gas belongs to can be determined by various methods.

  Over the past few years, fire protection standards for authorities' marine vessels have become increasingly stringent, and efforts have been made to monitor equipment redundancy to achieve this standard. This redundancy is achieved by installing an additional smoke meter in the air duct of each hold of the marine vessel.

In addition, the above-described type of smoke detection device can be additionally equipped with an intake pipe leading to the upper part of the air duct of each hold. However, this is quite expensive and, among other things, the digester can be wasted out by the duct blower, so additional intake pipes need to be disconnected from the CO ₂ gas supply in fire extinguishing conditions .

Another method has been proposed in the prior art, according to which a fire detector is attached to the ship's Co ₂ chamber in addition to the smoke extraction device, and is attached to the ship's air duct via the fire detector. Operate the smoke detector and recall the data. However, there are drawbacks such as high wiring costs and the need for a very large space in the Co ₂ room. In addition, there is a drawback that the cost of incorporation into the inboard monitoring system is increased.

DE3637681

  Accordingly, the present invention is based on the problem of providing a redundant fire detection device for all the vessels of a marine vessel that is easily assembled, space-saving as much as possible, and can be particularly well integrated into an inboard monitoring system. And

In order to solve this problem, in the smoke detection unit of the type mentioned at the beginning, a signal connector for electrically connecting the data lines of at least one detector (preferably another smoke detection device) that can be remotely located. And at least one communication / analysis unit for communicating with a remotely located detector via a signal connector has been proposed. That is, as an advantage of the present invention, a suction type smoke device adapted to a smoke detection unit is formed for on-site analysis of a smoke detector located in a hold (preferably an exhaust duct), thereby providing a suction type The smoke device is functionally expanded. Another advantage of the present invention is that only one device is disposed in the Co ₂ cylinder chamber. Therefore, as an advantage, the necessary space and wiring costs can be similarly reduced. In addition, since the entire signal is generated and processed in the smoke detection unit of the present invention, the measurement signal of the smoke detector deployed in the equipment case is the same as the measurement signal of the smoke detector distributed in the hold. Can be handled consistently.

  In a preferred embodiment of the present invention, a connection medium is formed for connecting two-wire conductors. As is well known in the prior art, the use of a two-wire conductor to connect an external detector to the smoke detector unit of the present invention allows multiple in-circuit detector circuits to be connected via the two-wire conductor. Connection becomes possible. For example, a smoke detector in a different hold or a plurality of smoke detectors arranged at different locations in a hold via a two-wire conductor such as a signal line is a communication / analysis unit of the smoke detection unit of the present invention. Can be connected to.

  In a particularly preferred embodiment of the invention, the connection medium is formed for connection to an even number, in particular two two-wire conductors. In this method of the present invention, both ends of a signal line to which a plurality of external detectors are connected can be connected to the communication / analysis unit to form a complete signal loop. As an advantage of the complete signal loop, since the loop is operated from both ends, it is possible to control and investigate all the sensors connected to the two-wire conductor even if it is short-circuited.

  In another preferred embodiment of the smoke detection unit of the present invention, a communication / analysis unit comprising this detector is formed based on the communication characteristics belonging to a given detector in order to establish a communication. For example, multiple smoke detectors can be connected one after the other on a complete two-pole signal loop, and each smoke detector has a separate address. Even if the detectors are connected one after the other on the detection loop, the addressing capability according to the present invention allows signals from different detectors to be received and analyzed. Therefore, as a merit of the smoke detection unit of the present invention, it is possible to locate a hold where a detector attached to the site transmits a specific status signal.

  In a preferred embodiment of the smoke detection unit of the present invention, for example to identify the degree of contamination, a communication / analysis unit is formed for receiving an analog signal. Therefore, the external detector can transmit the value not only in a “yes / no system” but also in an analog value. For example, when a predetermined limit value is exceeded, a failure report is generated.

  In order to increase safety by unifying operating concepts, the smoke detection unit embodiment of the present invention communicates directly with remotely located detectors when the current and / or voltage respectively reach a maximum. A communication / analysis unit is formed, and there is no need to actively adjust the voltage and / or current of the detector. Note that the explosive gas does not ignite at the maximum point of this current and / or voltage. This method of the present invention allows a detection loop to be connected to the smoke detection unit of the present invention, where the detection loop is a standard detection as well as a detector for safety and explosion-proof areas, the so-called “Ex-IS detector”. A vessel is also connected. Due to the advantages of the present invention, an “Ex-IS detector” can be connected to the detection loop via the connection, and no conversion between the loop voltage and the connection voltage is required. All that is required is the provision of a loop isolator for the operation of the explosion-proof smoke detector and a defined safety barrier at the connection connected to the detection loop. As is well known, standard loop voltages typically assume smoke detectors in non-explosive hazardous areas. On the other hand, the smoke detector in the explosion-proof area needs to operate with the minimum current or the minimum voltage. Therefore, the prior art requires a so-called protocol converter, which is used to actively correct the current or voltage value from the standard value for the non-explosion hazard area to the minimum required in the explosion danger area. .

  In a further preferred embodiment of the smoke detection unit of the present invention, a communication / analysis unit is formed to control a short circuit isolator connected in the data line. In particular, when a two-wire conductor is used for the data line, a short circuit isolator is provided between the detectors arranged in the signal line or signal loop. Disconnect the detector after the loop from the loop. In the smoke detection unit of the present invention, the communication / analysis unit can control the short circuit isolator of the signal line or signal loop to disconnect the shorted line portion. If multiple addressable short circuit isolators are deployed in the detection loop connected to the smoke detection unit, the communication / analysis unit can be controlled by individual short circuit isolators and the shorts in the signal loop can be controlled. There is an advantage that the defective part of the loop is cut off according to. The basic principle of the short circuit isolator of the signal loop is disclosed in, for example, Patent Document 1, and the disclosed part from the fourth stage 26th line to the fifth stage 19th line is cited.

  Within the scope of the present invention, functionally independent short circuit isolators can be used as well. That is, when a short circuit occurs in the line, the shorted line part is automatically disconnected by the short circuit isolator. Because both sides of the two-wire signal loop are connected to the smoke detection panel (output port and input port), the smoke detection panel “sees” the absence of a signal at the input port. As a result, the smoke detection panel automatically switches its input port to the output function. As an advantage, each of the loop smoke detectors (except the explosion hazard signal loop part) can be equipped with a short circuit isolator, so that the short circuit isolator on the other side reacts and insulates the short circuit part. To do. As a result, the short of the two-wire conductor is insulated from both sides and the remaining intact parts of the two-wire conductor are operated from each end. In such an operating state, the smoke detector does not stop suddenly unless the two-wire conductor and the smoke detector are short-circuited. Since the smoke detection panel recognizes that it has switched from input to output, the panel generates a defect report. This method of operation using an independent short circuit isolator does not require information flow from or to the short circuit isolator.

  The problem underlying the present invention is likewise solved by a smoke detection system for redundancy monitoring of a ship's hold. The system corresponds to at least one smoke detection unit based on the superordinate concept of claim 1, at least one intake device for supplying sample gas from each hold to the smoke detection unit, and at least the number of holds to be monitored A number of detectors (preferably smoke detectors) which can be arranged in each hold (preferably air ducts) and have a data line formed according to claims 1-7.

  In a preferred embodiment of the smoke detection system of the present invention, the data lines of the plurality of detectors are interconnected to the signal lines, and preferably both ends of the signal lines are connected to the signal lines of the smoke detection unit to form a signal loop. Connected to. For example, detectors in different holds or the data lines of multiple detectors in one hold can be interconnected to signal lines. When both ends of this signal line are connected to the signal connection medium of the smoke detection unit, as a merit, a detection loop that can be controlled from both ends when short-circuited is formed, and the processing capability of the detector is guaranteed. .

  In order to apply to the ship the only operational concept aimed at increasing safety, in a further embodiment of the smoke detection system according to the invention, at least one detector is equipped with intrinsic safety and its signal. A line is connected as a connection to a signal line and / or a signal loop. In this case, the maximum operating voltage and / or maximum operating current of the intrinsically safe detector basically corresponds to the maximum operating voltage and / or maximum operating current of a normal non-intrinsic safety detector. The advantage of this method is that the intrinsically safe detector as a connection can be interconnected to a non-intrinsically safe detector on a complete loop, between the loop voltage and the connection voltage, or between the loop current and the connection current. No conversion between them is necessary. Therefore, since it is not necessary to install a converter between the loop voltage and the connection voltage or between the loop current and the connection current, not only the operation of the smoke detection unit of the present invention is facilitated, but also the installation is simplified. There is an advantage of being.

  Finally, the problem underlying the present invention is solved in the same way by a smoke detection device of the type described at the beginning, in particular by a smoke detection device as a component of a smoke detection system of the type described at the beginning. In the detection device, a dust filter is arranged upstream of the smoke detector in the sample chamber, and the dust filter is formed so as to transmit smoke particles without transmitting dust and other floating substances. In particular, the dust filter can be equipped with three different pore and open dust line filters. The dust filter is attached to the case of the air duct detector in the form of a filter cartridge and can be easily replaced.

  The problem underlying the present invention is likewise solved by a smoke detection device of the kind mentioned at the outset, which is equipped with a medium for monitoring the air flow in the sample chamber. As an advantage, by monitoring the air flow in the sample chamber of the smoke detector, the air breaker transmits a signal to the detection loop, which is transmitted as a fault signal along with the exact location information of the relevant air duct detector. Is done. For example, a fault signal is transmitted when it is determined by monitoring the air flow that the sample chamber is not flowing through. This can indicate stagnation in the sample chamber, so that no smoke detector measurement is required.

  In particular, the smoke detection device of the present invention can include an air flow monitoring medium as well as a dust filter.

  In a preferred embodiment of the invention, the medium for monitoring the air flow comprises a weir plate arranged in the air flow, an impeller for manipulating the air flow and / or a differential pressure measuring device, and the signal output is preferably analog. It can be formed for addressing and / or as a robust coding.

  In a further embodiment of the smoke detection device of the present invention, the sample chamber is connected to the sampling tube and the first chamber in which the dust filter is arranged, and the second chamber is connected to the exhaust pipe and in which the smoke detector is arranged. It has. This method of the present invention allows the smoke detector to be particularly effectively and reliably protected from dust and achieves a uniform flow through the second chamber, which makes the smoke detector particularly reliable. Can be added.

  In a preferred embodiment of the present invention, the first chamber is separated from the second chamber, and a partition wall having an exhaust port is disposed between the first chamber and the second chamber. As an advantage of this method, a uniform air flow can be achieved in the second chamber region with the smoke detector.

  In a further preferred embodiment of the present invention, when the differential pressure measuring device is arranged to measure the differential pressure between the first chamber and the second chamber, it is possible to check the retention of the measurement chamber or the overload of the filter, Under these circumstances, smoke detector measurements are not required.

  A preferred embodiment of the present invention will be exemplarily described in detail using the drawings. Details of further advantages can be read from the figure.

  The same display numbers are used for functionally identical parts.

  Details of the figure are shown below.

1 is a schematic wiring diagram of a smoke detection system according to the present invention including a smoke detection unit according to the present invention. It is the piping schematic of the smoke detection unit of the smoke detection system of FIG. 1 based on this invention. 1 is a schematic view of an air duct detector attached to an air duct according to the present invention.

FIG. 2 is a schematic diagram of a smoke detection panel 10 according to the present invention. The smoke detection panel 10 includes an analysis case 4. Although not shown here, the analysis case 4 incorporates a smoke detector. The analysis case 4 has an intake port 11. Each intake port 11 is connected to the three-way valve 1 via an intake hose 3. Although not shown in detail here, one connection portion of the three way valve 1 is connected to the Co ₂ cylinder 8 via the Co ₂ connecting tube, another connection portion is connected to the extinguishing pipe 14.

  Each three-way valve 1 is connected to the hold 12, 13, 17, 18 by the fire extinguishing pipe 14. In FIG. 2, signal lines or conductive lines are not shown. Furthermore, the analysis case 4 of the smoke detection panel 10 includes an exhaust port 5, and the exhaust port is connected to the fan unit 6 via a steel pipe 7. The fan unit 6 sucks in the sample gas flowing from the hold 12, 13, 17, 18 to the analysis case 4 through the fire extinguishing pipe 14, the three-way valve 1 and the intake hose 3. In the analysis case 4, the sample gas sucked from the hold 12, 13, 17, 18 is guided through a smoke detector (not shown) and discharged to the outside through the exhaust port 5 and the steel pipe 7. Is done.

  There are a plurality of small cases in the analysis case 4 of the smoke detection panel 10, and each of the small cases has an intake hose 3, a three-way valve 1, a fire extinguishing pipe 14, and a hold 12, 13, 17, 18. One by one. These individual cases are provided with detectors. Therefore, the sample gas in the hold flows through the individual case to which it belongs. Thereby, the amount of smoke generated in each hold 12, 13, 17, 18 can be identified and spatially classified. The holds 12 and 18 are illustrated as safety areas, and there are no special requirements for the measuring instruments attached thereto from an explosion-proof point of view. On the other hand, the holds 13 and 17 are exemplified as an explosion danger area, and only the intrinsically safe components using the minimum high-voltage current are permitted so that the explosive gas does not ignite.

Similarly, FIG. 2 schematically shows that the safety hold 12 includes an air duct 15 and the explosion danger hold 13 includes an air duct 16. Further, FIG. 2 shows that another safety hold 18 is provided with an air duct 19 and another explosive hazard hold 17 is provided with an air duct 20, which are connected in an appropriate manner. In addition, a schematic view of the Co ₂ cylinder 8 is shown. A Co ₂ cylinder 8, a smoke detection panel 10, a three-way valve 1, a fan unit 6, all hoses 3, and a steel pipe 7 are present in a Co ₂ chamber 9 in the schematic diagram. The smoke detection panel 10 comprises an electrical connection 21 (shown schematically in FIG. 2) for a two-wire conductor. Each air duct 15, 19, 16, 20 is provided with a fan unit 39 on the ship side in order to ventilate each hold 12, 18, 13, 17.

FIG. 1 is a schematic diagram specifically explaining the wiring of the smoke detection system shown in FIG. As in FIG. 2, FIG. 1 schematically shows the Co ₂ chamber 9. However, the components are shown here only when they are related to wiring. Therefore, in FIG. 1, the intake hose 3, the three-way valve 1, and the Co ₂ cylinder 8 are not shown. However, in the Co ₂ chamber 9, it is possible to confirm the smoke detection panel and / or the electrical connection portion 21 for the two-wire conductor.

  As can be seen from FIG. 1, the smoke detection panel 10 is connected to the main power supply device 22 and the emergency power supply device 23. The fan unit 6 is supplied with power using the power transmission line 24 via the smoke detection panel 10. Further, it can be confirmed that the two-wire conductive wires 25 and 26 are respectively connected to the electrical connection portion 21 of the smoke detection panel 10. The two-wire conductor 25 leads to the air duct 15 of the safety hold 12. In the air duct 15 of the safety hold 12, smoke detectors 27 and 28 are connected to the two-wire conductor 25 in series. A short circuit isolator 29 schematically shown is connected between the smoke detectors 27 and 28. The smoke detectors 27 and 28 are standard detectors, and have no special explosion-proof equipment. Should a short circuit occur between the smoke detectors 27, 28, the short circuit isolator 29 is used to disconnect the lead at the location where it is incorporated. The short circuit isolator 29 is controlled by the communication / analysis unit 30 of the smoke detection panel 10. In another method of the present invention, a short circuit isolator operating independently without communicating with the communication / analysis unit 30 can be used as well.

  The two-wire conductor 25 is connected from the air duct 15 of the safety hold 12 to another smoke detectors 27 and 28 of the air duct 19 of the safety hold 18 via another short circuit isolator 29. A short circuit isolator 29 is similarly connected between the detectors 27 and 28.

  At the rear of the smoke detector 27 of the air duct 19 of the safety hold 18, a two-wire conductor 25 is connected to a safety wall 31 including a loop isolator. The safety wall 31 in the connection case (junk box) 40 is shown very schematically.

  In the connection case 40, a substantial safety wall is installed together with two short circuit isolators, and when a failure occurs, the connection part is separated from the substantial detection loop by the short circuit isolator. The safety wall 31 prevents the current from reaching a dangerous value at the explosion-proof portion. The connecting portion 32 is connected to the two-wire conductor 25 by a two-wire conductor via the safety wall 31. The connection portion 32 includes two intrinsically safe smoke detectors 33 and 34 disposed in the air duct 20 of the explosion danger hold 17. There are no protocol converters in the safety wall 31 such as current and voltage converters.

  Similarly, another connection part including the intrinsically safe smoke detectors 33, 34 arranged in the air duct 20 of the explosion danger hold 17 is connected to the two-wire conductor 25 via another safety wall 31. Another two-wire conducting wire 26 is connected to the output port of the second safety wall 31 and forms a signal loop together with the two-wire conducting wire 25.

  Further, in FIG. 1, an outline of the bridge 35 is shown. The schematic bridge can also be a fire station. Alternatively, it is possible to connect a fire station spatially separated from the bridge via the signal line 37 to the bridge. An operation / display unit 36 is disposed on the bridge 35. The unit connects the smoke detection panel 10 and the communication / analysis unit 30 incorporated in the panel via a signal line 37, can receive a measurement value and an alarm from the smoke detection panel 10, and can detect smoke. The detection panel 10 and the detector connected to the detection panel 10 can be controlled. The operation / display unit 36 uses a signal output port 38 when transferring to a ship monitoring system or a tachograph.

  Like the smoke detectors 27 and 28 of the safety holds 12 and 15, the intrinsically safe smoke detectors 33 and 34 of the explosion hazard holds 16 and 20 are also safe operation limit values in the entire signal loop formed by the two-wire conductors 25 and 26. If it is within the range, it has an operating voltage and an operating current that can use intrinsically safe signals and non-intrinsically safe signals. As a result, no protocol conversion module or voltage level conversion is required.

  The detectors 27, 28, 33, 34 are configured to allow analog addressing. If the signal loop is operated via the two-wire conductor 25 or another two-wire conductor 26, that is, from both ends, even if a short circuit occurs, the detector reading can be performed via the short circuit isolator 29. it can.

In this method of the present invention, the detectors 27, 28, 33, and 34 distributed in the air ducts 15, 16, 19, and 20 are combined with and integrated with the conventional smoke-exhaust smoke detector, thereby reducing the space. A smoke detection system and a smoke detection panel 10 have been proposed that enable redundant smoke monitoring of the safety holds 12 and 18 and the explosion risk holds 13 and 17 while reducing the cost and wiring costs. The system can be completely operated and read from the bridge 35 via the operation / display unit 36 arranged on it, and there is no need to be present at the site of the CO ₂ room 9.

  The detectors 27, 28, 33 and 34 of the present invention have a dust filter in their sample chambers and further include a medium for monitoring the air flow.

  FIG. 3 schematically shows a smoke detection device as an air duct detector according to the present invention. The air duct detector 100 includes a case 40 that includes a removable lid 41. An intrinsically safe smoke detector 34 is disposed in the case 40 of the air duct detector 100. However, within the scope of the present invention, the smoke detector can also be formed as a non-essential smoke detector if the operating conditions permit.

  The case 40 of the air duct detector 100 is divided into a first chamber 42 and a second chamber 43 by a partition wall 50. The smoke detector 34 is disposed in the second chamber 43 of the case 40. A filter cartridge 55 is disposed in the first chamber 42 of the case 40. The first chamber 42 of the case 40 is screwed with the sample gas intake pipe 44. The sample gas inlet pipe 44 has a radial sample gas inlet 45. As can be discerned from FIG. 3, one end of the sample gas intake pipe 44 is fixed to the air duct 20 by a pipe plug 46 and a fixing bracket 47. The second chamber 43 of the case 40 of the air duct detector 100 in which the detector 34 is disposed is screwed with the sample gas exhaust pipe 48.

  As can be seen from FIG. 3, the sample gas intake pipe 44 and the sample gas exhaust pipe 48 project toward the air duct 20 laterally with respect to the air flow 57 from the cargo hold of the ship inside the air duct 20, and The gas inlet 45 directs its opening into the air flow 57, thereby causing the air duct detector 100 to move to the cargo hold so that the sample gas flows from the air duct 20 into the first chamber 42 of the case 40 of the air duct detector 100. The air duct 20 is attached.

  In addition, the end portion of the sample gas exhaust pipe 48 has an opening portion that is transverse to the air flow 57 inside the air duct 20 in order to generate a low pressure inside the second chamber 43 of the case 40. By this low pressure, the sample gas flowing into the sample gas intake pipe 44 through the sample gas intake port 45 flows through the first chamber 42 and the second chamber 43. At that time, the filter cartridge 55 is disposed downstream of the sample gas intake pipe 44. Furthermore, the partition wall 50 between the first chamber 42 and the second chamber 43 has an exhaust port 51, and the sample gas flows from the first chamber 42 to the second chamber 43 through the exhaust port. The side fixed portion of the air duct detector 100 and the penetration portion of the sample gas intake pipe 44 or the sample gas exhaust pipe 48 are closed using a gasket 49.

  In order to detect clogging of the exhaust port 51 of the filter cartridge 55 and / or the partition wall 50, a differential pressure switch 52 is disposed downstream of the filter cartridge 55 in the first chamber 42 and immediately upstream of the partition wall 50. The differential pressure switch 52 includes a measurement port 53 for detecting the pressure in the first chamber 42 and a measurement port 54 for detecting the pressure in the second chamber 43. A measurement port 54 for detecting the pressure in the second chamber 43 passes through the partition wall 50 between the first chamber and the second chamber.

DESCRIPTION OF SYMBOLS 1 Three-way branch valve 2 Cable screw joint 3 Suction hose 4 Outer cover 5 Outlet 6 Air cleaner 7 Steel pipe 8 Co ₂ tank 9 Co ₂ space 10 Smoke detection center 11 Inlet 12 Ship hold, safety 13 Ship hold, explosion Dangerous 14 Fire extinguishing pipe 15 Vent, safe hold 16 Vent, high risk of explosion 17 Hanger, risk of explosion 18 Hanger, safe 19 Vent, safe hold 20 Vent, explosive High-risk Funakura 21 2-wire conductive wiring-type electrical reporting device (covers cable screw joints)
22 Series supply unit (covers the cable screw joint)
23 Emergency current supply (covers the cable screw joint)
24 Transmission line (covers the cable screw joint)
25 2-wire conductive wiring (covers the cable screw joint)
26 Two-wire conductive wiring (covers the cable screw joint)
27 Smoke Detector 28 Smoke Detector 29 Short Circuit Isolator 30 Communication / Analysis Unit 31 Safety Bulkhead 32 Connection 33 Essential Smoke Detector 34 Essential Smoke Detector 35 Bridge 36 Operation-Notification Unit 37 Signal Conductor (Cable Covering screw joints)
38 Signal lighting part (covers the cable screw joint)
39 Air Purifier on Ship side 40 Vent Mine Alarm Cover 41 Cover of Vent Mine Alarm Cover, Detachable 42 First Chamber of Vent Mine Alarm Cover 43 Second Chamber of Vent Mine Alarm Cover 44 Test Gas Intake Unit ( Screwed to the vent mine alarm cover)
45 Test gas inlet 46 End of test gas inlet 47 Support metal fitting for test gas inlet 48 Test gas outlet (screwed to the vent mine alarm cover)
49 Packing between vent mine alarm cover and outer wall of vent mine (one per test gas inlet and test gas outlet)
50 Bulkhead of first chamber and second chamber 51 Airflow opening between first chamber and second chamber 52 Pressure difference switch 53 Measurement opening for pressure reception of first chamber 54 Measurement opening for pressure reception of second chamber 55 Filter tray 57 Airflow from load hold in exhaust hole 100 Detector for airway hole

Claims (17)

  The smoke detection unit (10) has at least one integrated smoke detection device in its casing for detection of smoke in the test gas, especially for use in ships, and at least one for the test gas. Means (5, 7) for connecting the intake (11) to the inhalation device (6) for the test gas and / or the inhalation device (6) for the test gas, and a signal device (21), In addition, the electrical connection for data transmission (25, 26) from a detection device that can be installed at least in one distant place of the inhalation device (27, 28, 33, 34), which is mainly far away. A communication / analysis unit (30) for the signal transmission device (21) together with a suitable additional signal connection device (21) as well as at least one remotely located detection device (27, 28, 33, 34) is preliminarily provided. Smoke units are contemplated (10).   The smoke detection unit (10) according to claim 1, comprising a notification device (21) for notifying the two-wire conductors (25, 26).   Smoke detection unit (10) according to claim 1 or 2, comprising a two-wire conductor (25, 26), a notification device (21) for performing notification in a second way, in a certain number of ways.   A communication / analysis unit (30) based on one of the specified inhalation devices (27, 28, 33, 34), where the notification features are classified according to the configuration of notification with such a detection device. The smoke detection unit (10) according to any one of claims 1 to 3.   A smoke detection unit (10) according to any one of the preceding claims, comprising a communication / analysis unit (30) for reception of analog signals.   Equipped with a communication / analysis unit (30) for direct transmission of information at a maximum current and / or at a maximum voltage with a remotely installed detection device (27, 28, 33, 34) The current and / or voltage prevents the explosive gas from being ignited, and the voltage or current thereby actively activates the detection device (27, 28, 33, 34). 6. Smoke detection unit (10) according to any one of claims 1 to 5, in which correct tuning is essential.   The smoke detection unit (1) according to any one of claims 1 to 6, wherein the switchable short circuit isolator (29), which is mounted inside the data transmission device (25, 26), comprises a communication / analysis unit (30). 10).   In contrast to excessive monitoring in the ship hold (12, 13, 17, 18), the smoke detection system, ie the smoke detection unit (10) in the superordinate concept of the first paragraph of the application, Each hold (12, 13, 17, 18) has at least one suction device (6) for the inflow of the test gas, and any number in the hold (12, 13, 17, 18), and Depending on the number of holds (12, 13, 17, 18) under supervision, it has at least one detection device that can be installed mainly in the vents (15, 16, 19, 20), and in particular data transmission. The smoke detection system according to any one of claims 1 to 7, further comprising a detection device (27, 28, 33, 34) including one device.   The data transmission devices (25, 26) of the plurality of detection devices (27, 28, 33, 34) are connected in a straight line, and in particular, both ends thereof are connected to the signal transmission device (21) of the smoke detection unit (10). 9. The smoke detection system according to claim 8, wherein an alarm line in the form of an alarm ribbon is formed.   At least one of the detection devices (33, 34) is originally equipped, and a signal transmission device as a connection portion (32) is connected to the alarm line (25) and / or the alarm ribbon, and is formed. Thus, the remaining non-original detectors (27, 28) are adapted to the maximum operating current and / or the maximum operating voltage of the original detector (33, 34) of the maximum operating current. Item 10. The smoke detection system according to Item 8 or 9.   The exhaust pipe (48) and the sample gas intake pipe (44) are connected along the air flow, and the sample gas intake pipe (44) is in a state of arranging a return to the gas being monitored in the vent well (56). Ship hold (12, 13, 17, 18) with radial perforations (45) acting as sample gas inlet tubes in the direction of air flow across the gas being monitored in parallel vents (56) A sample for monitoring a smoke detection device (100) for mounting in a ventilation pit (56) in the interior, in particular as a component of a smoke detection system according to claims 8-10. The gas flowing from the gas intake pipe (44) to the exhaust pipe (48) can naturally flow in the test chamber in the natural direction of flowing through the sample gas intake pipe (44) to the exhaust pipe (48). Possible (42, 43) as well as the test chamber ( 2, 43), the smoke detection device (34) characterized by it is arranged in the test chamber (42, 43) with the dust filter (55) against the air flow from the smoke detection device (34). This is a smoke detection device (100) that does not allow dust and other small parts at the top to pass therethrough but allows soot particles to pass through.   The smoke detection device (100) according to claim 11, which is intended in advance from the differential pressure measuring device (52) to the monitoring of the airflow in the test chamber (42, 43).   A smoke detection device (100) according to claim 11 or 12.   A storage plate to which the airflow is directed, which is a means for airflow monitoring and consists of wheels and / or differential pressure measuring instruments (52) that are moved by the airflow, thereby enabling the lighting and / or analogy addressable signal in particular. 14. Smoke detection device (100) according to any one of claims 11 to 13, wherein resistance encoding occurs.   First, there is a test chamber in which there is a space (42) connected to the sample gas intake pipe, a dust filter (55) is arranged, and second, there is a space (43) connected to the exhaust pipe. A smoke detector (100) according to any one of claims 11 to 14, wherein a smoke detector (34) is arranged.   The first space (42) separated from the second space (43) by the partition wall (50) is provided between the first space (42) and the second space (43). The smoke detection device (100) according to claim 15, wherein the smoke detection device (100) is preliminarily intended as an opening (51) for use. 17. A differential pressure measuring device (52) is installed, and provided for the purpose of measuring a pressure difference between the first space (42) and the second space (43). The smoke detection device (100) according to item 1.

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