Smoke detection device suitable for low convection environment

Abstract

The utility model provides a smog detection device suitable for a low convection environment, comprising an active smog detector, a passive heating smog detector, a fixed smog detector and a host computer, the active smog detector, the passive heating smog detector and the fixed smog detector are connected with the host computer; the active smoke detector comprises a sampling tube, an aspirator, a first smoke sensor, a first circuit board and a first transmission module; the passive heating smoke detector comprises a heat convection chamber, an annular heater, a second smoke sensor, a second circuit board and a second transmission module; a three-dimensional sampling network is formed by adopting the active smoke detector, the passive heating smoke detector and the fixed smoke detector, so that early warning can be transmitted to an upper computer in time even in a low convection environment or a low smoldering condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to the security field, concretely relates to the smoke detection device suitable for low convection environment. BACKGROUND

[0002] In some low convection environment, for example, raw material warehouse, finished product warehouse, inventory warehouse etc., usually high, large area, goods move frequency is low. The traditional smoke detector is usually installed in the ceiling, relies on the natural convection of smoke heating rising. In low convection environment, the smoke generated by normal combustion, because of the airflow dilution of open environment, slows down the rising speed, even it is difficult to reach the smoke detector. When the smoke of abnormal combustion, for example, smoldering, may be suspended in 1-2 meters height from the ground, the smoke is difficult to reach the detector on the ceiling. How can the smoke detection device timely early warning, is the problem to be solved. SUMMARY

[0003] The utility model discloses a purpose at in order to solve above -mentioned problem provides the smoke detection device suitable for low convection environment, through the active smoke detector, passive heating smoke detector and fixed smoke detector, form three -dimensional sampling network, even in low convection environment or low -level smoldering, can also transmit early warning to the host computer in time.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme.

[0005] The smoke detection device suitable for low convection environment, including active smoke detector, passive heating smoke detector, fixed smoke detector and host computer, the active smoke detector, passive heating smoke detector, fixed smoke detector and host computer are connected, the active smoke detector includes sampling pipe, air aspirator, first smoke sensor, first circuit board and first transmission module, passive heating smoke detector includes hot convection chamber, annular heater, second smoke sensor, second circuit board and second transmission module, fixed smoke detector includes third smoke sensor, third circuit board and third transmission module.

[0006] Further, the active smoke detector is arranged at the middle position of the top of the place, the passive heating smoke detector is arranged around the active smoke detector in equal parts, and the fixed smoke detector is arranged away from the active smoke detector.

[0007] Further, the sampling pipe is connected with the air aspirator, the air aspirator is connected with the first smoke sensor, the air aspirator and the first smoke sensor are connected with the first circuit board, the first smoke sensor is connected with the first transmission module, and the first transmission module is connected with the first circuit board.

[0008] Further, the active smoke detector further comprises a filter screen, a dust sensor and an ultrasonic dust removal module, the filter screen is connected close to the air suction device, and the dust sensor and the ultrasonic dust removal module are arranged close to the filter screen.

[0009] Further, the heat convection chamber is arranged close to the annular heater, the second smoke sensor is arranged close to the heat convection chamber, the annular heater, the second smoke sensor, the second transmission module and the second circuit board are connected, and the second smoke sensor is connected with the second transmission module.

[0010] Further, the third smoke sensor, the third transmission module and the third circuit board are connected, and the third smoke sensor and the third transmission module are connected.

[0011] Further, the active smoke detector further comprises a first sound-light alarm module.

[0012] Further, the passive heating smoke detector further comprises a second sound-light alarm module.

[0013] Further, the fixed smoke detector further comprises a third sound-light alarm module.

[0014] The active smoke detector, the passive heating smoke detector and the fixed smoke detector are adopted, a three-dimensional sampling network is formed, even in the case of low convection environment or low-position smoldering, the active smoke detector, the passive heating smoke detector and the fixed smoke detector can timely transmit early warning to the upper computer.

[0015] The active smoke detector, the passive heating smoke detector and the fixed smoke detector are adopted, a three-dimensional sampling network is formed, even in the case of low convection environment or low-position smoldering, the active smoke detector, the passive heating smoke detector and the fixed smoke detector can timely transmit early warning to the upper computer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic view of the active smoke detector provided by the embodiment of the utility model.

[0017] Fig. 2 is a schematic view of the passive heating smoke detector provided by the embodiment of the utility model.

[0018] Fig. 3 is a schematic view of the fixed smoke detector provided by the embodiment of the utility model.

[0019] The reference numerals in the drawing are as follows:

[0020] 1, active smoke detector; 2, passive heating smoke detector; 3, fixed smoke detector; 4, upper computer;

[0021] 11, sampling pipe; 12, air suction device; 13, first smoke sensor; 14, first circuit board; 15, first transmission module; 16, first sound-light alarm module; 17, filter screen; 18, dust sensor; 19, ultrasonic dust removal module;

[0022] 21, heat convection chamber; 22, annular heater; 23, second smoke sensor; 24, second circuit board; 25, second transmission module; 26, second sound-light alarm module;

[0023] 31, third smoke sensor; 32, third circuit board; 33, third transmission module; 34, third sound-light alarm module. DETAILED DESCRIPTION

[0024] The specific embodiments of the smoke detection device suitable for low convection environment of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the specific embodiments are not intended to limit the specific implementation of the present application. Any similar structure and its similar changes that adopt the present application shall be included in the protection scope of the present application. The following embodiments are described with reference to the accompanying drawings to illustrate the specific embodiments of the present application that can be implemented. The directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only the directions of the accompanying drawings. Therefore, the directional terms are used to explain and understand the present application, not to limit the present application.

[0025] Referring to Figs. 1 to 3 The smoke detection device suitable for low convection environment comprises an active smoke detector 1, a passive heated smoke detector 2, a fixed smoke detector 3, and an upper computer 4. The active smoke detector 1, the passive heated smoke detector 2, the fixed smoke detector 3, and the upper computer 4 are connected. The active smoke detector 1 comprises a sampling pipe 11, an air suction device 12, a first smoke sensor 13, a first circuit board 14, and a first transmission module 15. The passive heated smoke detector 2 comprises a heat convection chamber 21, an annular heater 22, a second smoke sensor 23, a second circuit board 24, and a second transmission module 25. The fixed smoke detector 3 comprises a third smoke sensor 31, a third circuit board 32, and a third transmission module 33.

[0026] The active smoke detector 1 is arranged at the middle position of the top of the place. The passive heated smoke detector 2 is arranged around the active smoke detector 1 in equal parts. The fixed smoke detector 3 is arranged away from the active smoke detector 1. The active smoke detector 1 further comprises a first sound-light alarm module 16, which is installed on the first circuit board 14.

[0027] The sampling pipe 11 is connected with the air suction device 12, the air suction device 12 is connected with the first smoke sensor 13, the air suction device 12 and the first smoke sensor 13 are connected with the first circuit board 14, the first smoke sensor 13 is connected with the first transmission module 15, and the first transmission module 15 is connected with the first circuit board 14. The active smoke detector 1 further comprises a filter screen 17, a dust sensor 18 and an ultrasonic dust removal module 19, the filter screen 17 is connected close to the air suction device 12, the dust sensor 18 and the ultrasonic dust removal module 19 are arranged close to the filter screen 17, and the dust sensor 18 and the ultrasonic dust removal module 19 are connected with the first circuit board 14. The thermal convection chamber 21 is arranged close to the annular heater 22, the second smoke sensor 23 is arranged close to the thermal convection chamber 21, the annular heater 22, the second smoke sensor 23 and the second transmission module 25 are connected with the second circuit board 24, and the second smoke sensor 23 is connected with the second transmission module 25. The filter screen 17 is used for filtering the gas entering the sampling pipe 11, the dust sensor 18 monitors the amount of dust on the filter screen 17, and when reaching a certain value, such as 500 milligrams per unit area or other quantitative value, the ultrasonic dust removal module 19 is started to remove dust.

[0028] When smoke is generated by combustion, the smoke will enter the sampling pipe 11 due to the action of the air suction device 12, and then reach the first smoke sensor 13. The first smoke sensor 13 will transmit data to the first circuit board 14, and the first circuit board 14 will trigger the first sound-light alarm module 16 to give a warning. At the same time, the data generated by the first smoke sensor 13 will be transmitted to the upper computer 4 through the first transmission module 15.

[0029] The passive heating smoke detector 2 further comprises a second sound-light alarm module 26 installed on the second circuit board 24. The annular heater 22 in the passive heating smoke detector 2 adopts an annular PTC heating element, and the temperature of the annular PTC heating element is set to 60-80 degrees. In this embodiment, the temperature of the annular PTC heating element is set to 70 degrees Celsius. The annular heater generates heat and continuously heats the air in the thermal convection chamber 21. The outside air continuously enters the thermal convection chamber 21 to be heated, forming a thermal convection. The second smoke sensor 23 is arranged in multiple numbers and in a ring shape corresponding to the annular heater 22, which can effectively provide sensing efficiency.

[0030] The heat convection chamber 21 is a cavity, and the side facing the ground is provided with an array of through holes through which hot convection air enters and exits. When smoke is generated by combustion, the smoke will first enter through the through holes on the heat convection chamber 21 due to the action of heat convection, then pass through the annular heater 22, then reach the inner cavity of the heat convection chamber 21, and finally contact the second smoke sensor 23. The second smoke sensor 23 transmits data to the second circuit board 24, which triggers the second sound and light alarm module 26 to issue a warning. At the same time, the data generated by the second smoke sensor 23 is transmitted to the upper computer 4 through the second transmission module 25.

[0031] The fixed smoke detector 3 includes a third smoke sensor 31, a third circuit board 32, and a third transmission module 33. The third smoke sensor 31, the third transmission module 33, and the third circuit board 32 are connected, and the third smoke sensor 31 and the third transmission module 33 are connected. The fixed smoke detector 3 also includes a third sound and light alarm module 34 installed on the third circuit board 32. When smoldering occurs, the smoke suspended near the ground spreads to the vicinity of the fixed smoke detector 3, and the third smoke sensor 31 transmits data to the third circuit board 32, which triggers the third sound and light alarm module 34 to issue a warning. At the same time, the data generated by the third smoke sensor 31 is transmitted to the upper computer 4 through the third transmission module 33.

[0032] The upper computer 4 includes monitoring software that can graphically process received data and transmit and receive information.

[0033] The active smoke detector 1 is arranged at the middle of the top of the place, the passive heated smoke detector 2 is arranged equally around the active smoke detector 1, and the fixed smoke detector 3 is arranged away from the active smoke detector 1 and intermittently in the place. Specifically, the distance between the ground and 2 meters or 3 meters (according to actual conditions) of the place is assumed as the vertical axis, the left side to the right side of the place is assumed as the horizontal axis, and the vertical axis and the horizontal axis are equally divided, for example, the vertical axis is equally divided and marked as upper, middle, and lower points, and the horizontal axis is equally divided and marked as 1, 2, 3, 4, and 5 points. At point 1, the upper point is taken, at point 2, the lower point is taken, at point 3, the middle point is taken, at point 4, the lower point is taken, and at point 5, the upper point is taken. Through the multi-point cross layout, the response time and the accuracy of the alarm can be effectively improved.

[0034] After the defense is set, a simulated fire scene needs to be performed to test the smoke arrival time, the number of false alarms, and the battery power consumption, and the positions of the active smoke detector 1, the passive heated smoke detector 2, and the fixed smoke detector 3 are adjusted according to the operation data.

Claims

1. Smoke detection apparatus suitable for use in low convection environments, characterised in that, The application relates to a smoke detector, which comprises an active smoke detector, a passive heated smoke detector, a fixed smoke detector and an upper computer.

2. Smoke detection apparatus suitable for use in low convection environments according to claim 1, characterised in that, The active smoke detector is arranged in the middle of the top of a place, the passive heated smoke detector is arranged around the active smoke detector in equal parts, and the fixed smoke detector is arranged away from the active smoke detector.

3. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The sampling pipe is connected with the air suction device, the air suction device is connected with the first smoke sensor, the air suction device and the first smoke sensor are connected with the first circuit board, the first smoke sensor is connected with the first transmission module, and the first transmission module is connected with the first circuit board.

4. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The active smoke detector further comprises a filter screen, a dust sensor and an ultrasonic dust removal module, the filter screen is arranged close to the air suction device, and the dust sensor and the ultrasonic dust removal module are arranged close to the filter screen.

5. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The heat convection chamber is arranged close to the annular heater, the second smoke sensor is arranged close to the heat convection chamber, the annular heater, the second smoke sensor, the second transmission module and the second circuit board are connected, and the second smoke sensor is connected with the second transmission module.

6. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The third smoke sensor, the third transmission module and the third circuit board are connected, and the third smoke sensor and the third transmission module are connected.

7. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The active smoke detector further comprises a first sound-light alarm module.

8. A smoke detection apparatus suitable for low convection environments according to claim 1, wherein, The passive heated smoke detector further comprises a second sound-light alarm module.

9. A smoke detection apparatus suitable for use in low convection environments according to claim 1, wherein, The fixed smoke detector further comprises a third sound-light alarm module.

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