CN214333894U

CN214333894U - Hot smoke test device

Info

Publication number: CN214333894U
Application number: CN202120783243.2U
Authority: CN
Inventors: 陈健; 李宏文; 张玏; 王靖波; 冉鹏; 钱禹丰
Original assignee: Jianyan Fire Prevention Technology Co Ltd; China Academy of Building Research CABR
Current assignee: Jianyan Fire Prevention Technology Co Ltd; China Academy of Building Research CABR
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-01
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a hot smoke test device, which comprises a fire source system, a smoke generating system, a measuring system and a terminal control system; the fire source system consists of one or more burners, and each burner comprises a burning tray, a water bearing tray and a weight monitoring device; the burning tray is arranged in the water bearing tray, and part of the side wall of the burning tray is attached to and detachably assembled with part of the side wall of the water bearing tray; the weight monitoring device is arranged at the bottom of the water bearing disc; the combustion disc is also provided with a pressure monitoring device and an electronic ignition device; the smoke generating system is arranged on the side wing of the fire source system, and the top end of the smoke generating system is provided with a gas flow velocity sensor; the measuring system is arranged on the periphery of the fire source system and the smoke generating system and comprises a plurality of wind speed-temperature sensors; and the terminal control system is connected with the fire source system, the smoke generating system and the measuring system. The utility model discloses a device can use in construction engineering fire extinguishing system acceptance and conflagration scientific research, has that fire source stability is good, fire source power is sufficient, data acquisition full, the high advantage of safety in use.

Description

Hot smoke test device

Technical Field

The utility model relates to a conflagration science fire control technical field especially relates to a hot cigarette test device.

Background

At present, part of construction projects such as large commercial complexes, urban underground rail traffic projects, airport terminal buildings and the like have the characteristics of special space structures, complex design of smoke prevention and exhaust systems and the like, and in order to successfully carry out fire-fighting acceptance activities in the buildings, a hot smoke test method for evaluating the performance of the smoke prevention and exhaust system on site is provided in the national standard 'hot smoke test method for verifying the performance of the smoke prevention and exhaust system on site' (GA/T999-. As shown in FIG. 1, the test adopts the combustion plate 100 as a fire source, injects visual tracer flue gas into a hot plume through the smoke generating furnace 300 to demonstrate the flow law of the flue gas, and starts the smoke prevention and discharge system in a linkage manner through the fire detection equipment. And judging whether the smoke prevention and exhaust system can meet the requirements or not through the smoke spreading range.

The standards specify fuel, burner plate size, and smoking material, but there are many problems in practical applications. As shown in fig. 1, first, in order to prevent damage to the ground due to high temperature in a fire source system consisting of a combustion tray 100 and a water receiving tray 200, the combustion tray 100 is placed in the water receiving tray 200, and water is injected into the water receiving tray 200. Because the burning plate can not be fixed in the water bearing plate, under the action of buoyancy, the burning plate can float during burning, so that the phenomena of unstable fire source, inaccurate plume axis temperature data acquisition and the like are caused. The fire source of different powers is realized through the combination burning dish, because the existence of holding the water tray when 2 above burning dish combinations leads to the burning dish can not closely laminate, causes the fire source to be the dispersed state and can't gather together, and combustion power can not reach the standard requirement. Meanwhile, the existing equipment cannot monitor the fuel quality loss and the water evaporation rate in real time, and the lack of data acquisition limits the application of the full-size hot smoke test method to the research in the field of fire science. In addition, the ignition mode of the prior art is that manual ignition is carried out on the combustion disc combination one by one through the ignition rod in a short distance, and the ignition mode not only brings hidden dangers to the personal safety of field operators, but also is not convenient for accurately recording the ignition time. For the smoke generating furnace, the smoke generating amount in the prior art can not be monitored in real time, so that only qualitative analysis and no quantification can be performed when the smoke concentration is analyzed. Moreover, the smoke generating furnace manufactured according to the standard graphic representation is difficult to transport in practical application and is not portable.

It can be seen that the above-mentioned conventional hot smoke testing apparatus still has inconvenience and disadvantages in structure, method and use, and further improvement is needed. How to create a hot smoke test device with good fire source stability, sufficient fire source power, perfect data acquisition and high use safety becomes the object of great need for improvement in the industry at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a hot cigarette test device that can use in construction engineering fire extinguishing system acceptance and conflagration scientific research, make its fire source stability good, fire source power is sufficient, data acquisition full and full, safety in utilization high to overcome current hot cigarette test device fire source poor stability, fire source power is not enough, gather data lack and the security defect such as less than.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a hot smoke test device comprises a fire source system, a smoke generating system, a measuring system and a terminal control system;

the fire source system consists of one or more burners, and each burner comprises a burning tray, a water bearing tray and a weight monitoring device; the combustion tray is arranged in the water bearing tray, and part of the side wall of the combustion tray is attached to part of the side wall of the water bearing tray and is detachably assembled; the weight monitoring device is arranged at the bottom of the water bearing disc; the combustion disc is also provided with a pressure monitoring device for monitoring the fuel injection amount and the fuel consumption amount and an electronic ignition device for remotely controlling ignition; the weight monitoring device, the pressure monitoring device and the electronic ignition device are respectively connected with a terminal control system;

the smoke generating system is arranged on a side wing of the fire source system, and a gas flow velocity sensor is arranged at the top end of the smoke generating system and connected with the terminal control system;

the measuring system is arranged on the periphery of the fire source system and the smoke generating system, comprises a plurality of wind speed-temperature sensors, is used for collecting wind speed and temperature parameters on the upper part of the fire source and around the fire source in real time, and is connected with the terminal control system;

the terminal control system is connected with the fire source system, the smoke generating system and the measuring system and used for collecting a fuel pressure value in the combustion disc, a fire source system weight value, a smoke flow value in the smoke generating system, a temperature value and a wind speed value on the upper portion of the fire source and around the fire source in real time and controlling an electronic ignition device in the fire source system.

As the utility model discloses further improve, the burning dish is the rectangle burning dish, and wherein adjacent both sides are provided with down turns over the recess, it holds the water tray for the rectangle to hold the water tray, the burning dish is gone up along through turning over the recess card down and going into the lateral wall that holds the water tray.

Furthermore, a high-temperature-resistant horizontal ruler is fixed on the outer side of the side wall of the combustion disc, and a plurality of height-adjustable support legs are arranged at the bottom of the combustion disc.

Furthermore, the pressure monitoring device comprises a hollow steel pipe and a micro-pressure sensor, the hollow steel pipe is a bent steel pipe, one end of the hollow steel pipe is connected to the bottom of the combustion disc, the other end of the hollow steel pipe is connected with the micro-pressure sensor, and the micro-pressure sensor is installed on the outer side wall of the water bearing disc; the micro-pressure sensor is connected to a terminal control system through an analog/digital signal converter with a serial server;

and/or the main body of the weight monitoring device is a high-temperature-resistant gypsum board, and four corners of the bottom surface of the high-temperature-resistant gypsum board are provided with four weight sensors; the four weight sensors are connected through data lines penetrating through the metal hollow pipe, and the data lines are simultaneously connected to a terminal control system through an analog/digital signal converter with a serial server; the metal hollow pipe is fixed below the high-temperature resistant gypsum board through a pipe clamp;

and/or the electronic ignition device is an electronic pulse ignition device, and an ignition rod of the electronic pulse ignition device extends into a combustion disc of the fire source device.

Furthermore, the smoke generating system comprises a smoke box, a chimney is mounted at the top of the smoke box, the top end of the chimney is provided with the gas flow velocity sensor, and the gas flow velocity sensor is connected into the terminal control system through an analog/digital signal converter with a serial server; the bottom of the smoke box is provided with a caster.

Further, a bracket is arranged between the bottom of the smoke box and a caster; and/or the side wall of the smoke box is provided with a protective plate.

Furthermore, two feeding ports are respectively formed in the upper portion and the lower portion of the back face of the smoke box, a steel mesh is fixed in the middle of the feeding ports inside the box body of the smoke box, and an iron tray is arranged at the bottom of the feeding port below the box body.

Further, the measuring system comprises a vertical rod, a cross rod, a measuring rod lantern ring, a sensor lantern ring and a wind speed-temperature sensor; the vertical rod and the cross rod are connected to form a three-dimensional frame structure, the measuring rod lantern ring is a tee joint, the measuring rod lantern ring is sleeved on the cross rod and can move along the cross rod, the measuring rod is installed between the two measuring rod lantern rings, the sensor lantern ring is sleeved on the measuring rod and can move along the measuring rod, and the wind speed-temperature sensor is detachably installed in the sensor lantern ring.

Further, the two ends of the vertical rod are fixed with discs with a plurality of round holes, the cross rod is a steel rod with grooves at two ends, the grooves are also provided with the round holes, the grooves of the cross rod are embedded into the discs of the vertical rod, and the cross rod and the discs are connected through bolts.

Furthermore, the wind speed-temperature sensor is made by compounding an impeller type wind speed sensor and a thermocouple, the rear part of the wind speed-temperature sensor is provided with a hollow sleeve, and a digital-analog signal converter and a power supply are arranged in the hollow sleeve; and a high-temperature-resistant wiring port is reserved at the rear end, and a high-temperature-resistant data wire wrapped by asbestos is connected into the terminal control system.

After adopting the technical scheme, the utility model discloses at least, following advantage has:

1. the hot smoke testing device of the utility model can realize the remote ignition function through the cooperation of the fire source system, the smoke generating system, the measuring system and the terminal control system, and has the real-time monitoring function of the parameters such as the fuel pressure value in the combustion disc, the weight value of the fire source system, the smoke flow value in the smoke generating system, the temperature value at the upper part of the fire source and the surrounding temperature value and the wind speed value; the hot smoke test device collects data, satisfies engineering measurement and simultaneously meets the requirements of academic research.

2. The utility model discloses the mode of connection can be dismantled in the partial lateral wall laminating of the burning dish of well fire source system and the partial lateral wall of holding the water tray and adopting, compares prior art, and the floating removal of burning dish can not appear in the use, has effectively promoted the stability of fire source. In addition, during the use, the combustor combination of accessible different quantity provides different ignition source power, and owing to the setting of above-mentioned structure, when a plurality of combustors were made up, the burning dish can closely laminate, can form and gather together the ignition source, makes ignition source power reach technical requirement in the combustion process.

3. The utility model discloses the stabilizer blade of well burning dish has altitude mixture control function, through fixing the high temperature resistant level bar at burning dish lateral wall, can guarantee to burn the dish level. The device can guarantee that the combustion plate can still be used after deformation due to collision in the carrying process, and can also guarantee to use the fire source system under the condition that the ground is not completely flat.

4. The smoking system of the utility model is provided with the caster, which is convenient to carry and portable compared with the existing smoking system; the smoke generating system is also provided with a bracket between the smoke box and the caster, and has a heat insulation function; meanwhile, the protection plate arranged on the side wall of the smoke box can isolate heat radiation and protect workers.

5. The utility model provides a measurement system support adopts the bolt connection, can practice thrift installation time and the degree of difficulty greatly. The wind speed and temperature data of any direction and scale around the fire source can be collected in real time through the matched measuring rod lantern ring and the sensor lantern ring, and the data volume is greatly enriched.

6. The utility model discloses well each system all has the quick detach function, and convenient device transportation and installation.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

FIG. 1 is a schematic diagram of a hot smoke test apparatus according to the prior art;

fig. 2 is a schematic structural view of a hot smoke testing apparatus according to an embodiment of the present invention;

fig. 3 is a schematic view of a fire source system according to an embodiment of the present invention;

FIG. 4 is a schematic view of the A burner configuration of FIG. 3;

fig. 5 is a schematic structural view of a smoke generating system in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a measurement system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a data transmission and control system according to an embodiment of the present invention.

In the figure:

100-a combustion tray; 200-a water bearing disc; 300-a smoke generating furnace; 1-a fire source system; 2-a smoking system; 3-a measurement system; 4-A burner; 5-B burner; a 6-C burner; a 7-D burner; 8-a combustion tray; 9-a water bearing disc; 10-high temperature resistant gypsum board; 11-high temperature resistant gypsum board; 12-an ignition bar; 13-a metal hollow tube; 14-turning down the groove; 15-height adjustable feet; 16-hollow steel pipes; 17-a weight sensor; 18-a micro-pressure sensor; 19-analog/digital converter with serial server; 20-an electronic ignition device; 21-a horizontal ruler; 22-gas flow rate sensor; 23-a chimney; 24-analog/digital converter with serial server; 25-smoke box; 26-steel plate; 27-steel frame; 28-a caster; 29-upright stanchion; 30-a cross bar; 31-a measuring rod; 32-upright rod connecting sleeve; 33-measuring rod collar; 34-a sensor collar; 35-wind speed-temperature sensor; 36-a disc; 37-a chassis; 38-terminal control system; 39-control host; 40-a data storage component; 41-an instruction output component; 42-a data acquisition component; 43-Serial Server.

Detailed Description

When some construction projects with complex structures are subjected to fire fighting inspection, functions of a smoke prevention system and a smoke exhaust system designed in the projects need to be inspected and verified through a field hot smoke test. The specification and size requirements of an inspection method and partial equipment are given in the related technical standards, the utility model discloses hot cigarette test device provides one kind and has the fire source stable performance, fire source power is sufficient, the security is high and gather the full hot cigarette test device of data. The present invention will be described in further detail with reference to the following drawings and specific examples.

As shown in fig. 2, it is the structural intention of the hot smoke testing device according to the embodiment of the present invention, including the fire source system 1, the smoke generating system 2, the measuring system 3, and in addition, the terminal control system is also configured. In the practical application process, the fire source system 1 is placed at a selected fire source position, the smoke generating system 2 is placed beside the fire source system 1, the measuring system 3 is assembled and built, and after all workers and the terminal control system are confirmed to be ready, fuel is poured into the fire source system 1 to start a test.

Fig. 3 is a schematic view of a combination of the fire source system, which is shown in the figure, wherein the fire source is composed of a burner 4, a burner 5, a burner 6 and a burner 7. Wherein the A burner 4 and the B burner 5 have the same structure, but the layout position of the installed equipment is symmetrical. The arrangement positions of the structural equipment of the burner 6C and the burner 4A are the same, and the arrangement positions of the structural equipment of the burner 7D and the burner 5B are the same. The combination of different burners and fuel capacity can provide different power ignition sources for the ignition source system, and the specific combination is shown in table 1. Wherein the fuel injection amount is monitored in real time by a terminal control system. When the fire source system is required to provide a fire source with 340kW of power, any one burner may be used.

TABLE 1 fire Power parameters

Fig. 4 illustrates a specific structure of the burner, taking the a burner 4 as an example. The A burner 4 main body mainly comprises a burning disc 8 and a water bearing disc 9. The burning tray 8 is a rectangular steel burning tray, and handles are welded on two sides of the burning tray 8; a downward turning groove 14 is welded on the short edge at one side and the long edge at the adjacent side; correspondingly, the water bearing disc 9 is also a steel rectangular water bearing disc, and handles are welded on two sides of the water bearing disc 9; the burning tray 8 is arranged in the water bearing tray 9 and is clamped into the upper edge of the side wall of the water bearing tray 9 through the downward turning groove 14. Through adopting the form of turning over recess joint down, simple structure dismantles the convenience. Of course, the above-mentioned method is only preferable, and in fact, it is only necessary to ensure that part of the side wall of the combustion tray 8 is jointed with part of the side wall of the water receiving tray 9 and is detachably assembled.

The burning tray 8 and the water bearing tray 9 are both made of 8mm thick steel plates, and liquid contained in the burning tray is ensured not to leak. The dimensions of the combustion tray 8 and the water-receiving tray 9 are shown in table 2.

TABLE 2 Specifications of burning tray 8 and water-bearing tray 9

In addition, a high-temperature-resistant horizontal ruler 21 is fixed on the outer side of the side wall of the combustion disc 8, the bottom of the combustion disc 8 is screwed into the four height-adjustable support legs 15 in a threaded mode, so that the bottom surface of the combustion disc can be prevented from being overheated, the height of each support leg can be adjusted conveniently, and the bottom surface of the combustion disc can be kept horizontal by adjusting the height of each support leg and observing the horizontal ruler. In addition, this setting can guarantee that the burning tray still can use because of colliding with after the deformation takes place in handling, also can guarantee to use this fire source system under the incomplete smooth condition in ground simultaneously.

In order to realize intelligent control, the A burner 4 main body also comprises a weight monitoring device, and the combustion disc 8 is also provided with a pressure monitoring device for monitoring the fuel injection amount and the fuel consumption amount and an electronic ignition device for remotely controlling ignition; the weight monitoring device, the pressure monitoring device and the electronic ignition device are respectively connected with the terminal control system.

As shown in fig. 4, the weight monitoring device is located at the bottom of the water-bearing disc 9, the main body is a high-temperature-resistant gypsum board 10, the area of the high-temperature-resistant gypsum board is the same as the sectional area of the water-bearing disc, and four round weight sensors 17 are arranged at four corners of the bottom surface of the high-temperature-resistant gypsum board 10; the four weight sensors 17 are connected through data lines, the data lines pass through the metal hollow pipe 13 (heat insulation protection), and are simultaneously connected with an analog/digital signal converter 19 of the serial server; therefore, the values of the four weight sensors 17 can be transmitted to the analog/digital signal converter 19 in real time and then transmitted to the terminal control system which is matched and connected with the analog/digital signal converter. Weight sensor 17 passes through the screw fixation in high temperature resistant gypsum board 10 below, and hollow metal tube 13 passes through the pipe strap to be fixed in high temperature resistant gypsum board 10 below, prevents the phenomenon that drops to appear in the use. The weight sensor 17 is a high-temperature-resistant sensor.

As shown in fig. 3 and 4, the pressure monitoring device includes a hollow steel tube 16 and a micro-pressure sensor 18, the hollow steel tube 16 is a bent steel tube, one end of the bent steel tube is connected to the bottom of the combustion plate 8, and the other end of the bent steel tube is connected to the micro-pressure sensor 18. The micro-pressure sensor 18 is arranged on the outer side wall of the water bearing disc 9 and is connected with an analog/digital signal converter 19 with a serial server, when fuel is injected into the combustion disc 8, the micro-pressure sensor 18 can acquire pressure signals, and the signals are transmitted to a terminal control system in real time through the analog/digital signal converter 19.

As shown in fig. 3 and 4, the electronic ignition device 20 is an electronic pulse ignition device, and an ignition rod 12 of the electronic pulse ignition device extends into the combustion plate 8. The electronic ignition device 20 can perform ignition after receiving the command of the terminal control system.

With reference to fig. 3 and 4, a protection box made of high-temperature resistant gypsum board 11 is hung on the outer side of the water bearing disc 9 of the protection device, an electronic ignition device 20, an analog/digital signal converter 19 and a micro-pressure sensor 18 are installed inside the protection box in a buckling mode, and the three devices can be installed and detached quickly. The top of the high-temperature resistant gypsum board 11 is provided with a hole for the ignition rod 12 and the hollow steel pipe 16 of the electronic ignition device 20 to pass through.

When the fire source system is used, the weight monitoring device is placed on the ground firstly, then the water bearing disc 9 is placed above the weight monitoring device, then the burning disc 8 is placed in the water bearing disc 9 for fixation, and the burning disc 8 is made to be horizontal by adjusting the height-adjustable support legs 15. And then the analog/digital signal converter 19 is connected with the terminal control system, the pressure and weight data are observed to be normal through the terminal control system, the upper computer is confirmed to send an ignition instruction normally, and after the electronic ignition device 20 can work normally, the normal installation and debugging of the fire source system are completed. In preparation for testing, water is poured into the water-receiving tray 9 and fuel is poured into the combustion tray 8. At the moment, the pressure display of the upper computer is observed, and the pouring is stopped after the requirement is met. When the test is started, the terminal control system sends an ignition command to the electronic ignition device 20, at the moment, the ignition rod 12 generates electric sparks, and the fuel is normally ignited.

The smoke generating system 2 of the hot smoke test apparatus is constructed as shown in figure 5 with a rectangular parallelepiped smoke box 25 having a body of 390mm (length) by 390mm (width) by 420mm (height). The top of the smoke box is a prismatic table, the bottom surface of the prismatic table is 390mm (length) multiplied by 390mm (width), the top is 200mm (length) multiplied by 200mm (width), and the height of the prismatic table is 173 mm. Are all formed by welding steel plates with the thickness of 2mm, and ensure that the welding position is sealed and does not leak smoke.

Two feeding ports of 127mm (height) multiplied by 320mm (width) are respectively arranged at the upper and lower parts of the back surface of the smoke box 25. A steel mesh is fixed in the middle of the feeding port inside the box body, and an iron tray is arranged at the bottom of the feeding port below the box body. In the use process, the tobacco cake is ignited and then placed into the feeding port at the upper part, smoldering smoke is generated on the steel mesh, and the tobacco cake falls on the iron tray at the lower part after the combustion of the tobacco cake is completed. After the test is finished, the iron tray can be taken out and cleaned through the feeding port below the iron tray.

The side walls of the two sides of the front of the smoke box 25 are respectively hung with 1 steel plate 26 of 670mm (height) x 400mm (width) x 2mm (thickness) as a protection plate for isolating heat radiation and protecting workers.

A chimney 23 with the outer diameter of 150mm (diameter) and the wall thickness of 1mm is welded at the top of the smoke box 25, a gas flow velocity sensor 22 is arranged at the top of the chimney, and the gas flow velocity sensor 22 is simultaneously connected with an analog/digital signal converter 24 of a serial server. When the flue gas flows out of the chimney, the gas flow rate sensor 22 transmits the flow rate of the flue gas to a terminal control system in real time.

The steelframe 27 that the smoke box 25 bottom was made for the angle steel, and steelframe 27 holds up smoke box 25, can prevent that high temperature from causing destruction to ground. Meanwhile, the bottom of the steel frame 27 is welded with casters 28, so that the smoking system can be moved and carried conveniently.

Fig. 6 is a schematic structural diagram of the measurement system 3, and only a part of the schematic structural diagram is selected to clearly show the connection structure, so that the measurement system 3 can be continuously expanded according to the field conditions. The measuring system 3 is composed of a vertical rod 29, a cross rod 30 and a measuring rod 31. The upright rod 29 is a steel pipe with the outer diameter of 20mm and the inner diameter of 18mm, the bottom of the steel pipe is welded with a steel disc base 37 with the diameter of 200mm and the thickness of 10mm and a steel disc 36 with the diameter of 120mm and the thickness of 5mm, and the distance between the two is 150 mm. The disc 36 is evenly provided with 8 circular holes with the diameter of 15 mm. The other end of the upright rod 29 is a steel upright rod connecting sleeve 32, the inner diameter of the sleeve is 20mm, the outer diameter of the sleeve is 24mm, and the height of the sleeve is 150 mm. 150mm below the upright connecting sleeve 32 is also a steel disc. The cross rod 30 is a steel rod, and both ends are provided with grooves with the depth of 80mm and the width of 6 mm. Circular holes are arranged on two sides of the groove, and the diameter of each hole is 15 mm. When the device is installed on site, the measuring rod lantern ring 33 is firstly sleeved into the cross rod 30, then the groove of the cross rod is embedded into the disc 36 of the vertical rod, the circular hole of the groove is ensured to be coincident with the circular hole on the disc 36, and then the plug pin with the diameter of 15mm is inserted to complete the assembly of the cross rod 30. When the measuring rod 31 is installed, the sensor lantern ring 34 is sleeved on the measuring rod 31, then the measuring rod 31 is installed on the measuring rod lantern ring 33 sleeved on the cross rod 30, the measuring rod lantern ring 33 is a tee, a knob on the measuring rod lantern ring 33 is screwed, and two ends of the measuring rod 31 are fixed. Finally, the wind speed-temperature sensor 35 is installed on the sensor lantern ring 34, and the knob on the sensor lantern ring 34 is screwed tightly to fix the wind speed-temperature sensor 35. Since the measuring rod collar 33 is not fixed to the cross-bar, the measuring rod 31 can be moved horizontally along the cross-bar. Similarly, the sensor collar 34 can move up and down on the measuring rod 31, so that the wind speed-temperature sensor 35 can measure the wind speed and temperature parameters at any point on a plane and transmit the parameters to the terminal control system in real time. Due to the structural particularity of the measuring system, multi-position data acquisition can be realized by continuously overlapping the vertical rod 29, the transverse rod 30 and the measuring rod 31.

The wind speed-temperature sensor 35 is made by compounding an impeller type wind speed sensor and a thermocouple, a hollow sleeve is arranged at the rear part of the wind speed-temperature sensor 35, and a digital-analog signal converter and a power supply are arranged in the hollow sleeve; and a high-temperature-resistant wiring port is reserved at the rear end, and a high-temperature-resistant data wire wrapped by asbestos is connected into the terminal control system.

Fig. 7 is a structural diagram of a data transmission and control system in the hot smoke testing apparatus, and the terminal control system 38 includes a control host 39, a data storage component 40, an instruction output component 41, and a data acquisition component 42. The instruction output assembly 41 is connected with the electronic ignition device 20 in the fire source system 1, the data acquisition assembly 42 is connected with the serial servers 43 in the fire source system 1, the smoke generating system 2 and the measuring system 3, and the serial servers are connected with the analog/

digital signal converters

19 and 24 through an RS485 protocol. The connection can be realized in a wired mode and a wireless mode, wherein the wired connection mode is a TCP/I P protocol, and the wireless connection mode is a Bluetooth protocol. During testing, the terminal control system 38 can set the acquisition time and interval of each sensor, and simultaneously store the acquired data in the data storage component 40.

To sum up, the utility model discloses a hot cigarette test device carries out comprehensive transformation to prior art, carries out degree of depth optimization to fire source system, system of fuming, measurement system's structure and data acquisition, makes this system have following advantage:

the utility model discloses burning dish can be fixed in holding the water tray among hot cigarette test device's the fire source system, and when its height-adjustable and a plurality of combustor were made up, burning dish can closely laminate. Compared with the prior art, the combustion plate can be effectively prevented from floating while being combusted, and the stability of the fire source is effectively improved. When the burner burns, the fire source plane can be kept horizontal and the flame is in a gathering state, so that the total heat release rate in the burning process reaches the technical requirement, and different fire source powers can be provided. In addition, the fire source system can monitor weight change and fuel loss, remote ignition is realized, data volume is enriched on the premise of ensuring safety of workers, and a solid foundation is provided for scientific research and analysis.

The utility model discloses hot cigarette test device system of fuming compares in prior art, has installed gas velocity of flow sensor, can carry out real time monitoring to the volume of fuming. Meanwhile, due to the arrangement of the caster wheels, the device can be conveniently pushed and carried.

The utility model discloses hot cigarette test device measurement system main part adopts bolt technology, makes each subassembly ability high-speed joint to can expand in space all directions, with adaptation various experimental environment and measured data demand. The measuring system adopts a measuring rod lantern ring and a sensor lantern ring, is arranged in a special structure, and can acquire wind speed and temperature data of any position in a plane confirmed by the cross rod.

The utility model discloses hot cigarette test device has simple to operate, measures the science, and characteristics such as data acquisition are abundant not only satisfy fire engineering smoke protection, the system detection demand of discharging fume, still suitable for conflagration scientific research to use.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. A hot smoke test device is characterized by comprising a fire source system, a smoke generating system, a measuring system and a terminal control system;

the measuring system is arranged on the periphery of the fire source system and the smoke generating system, comprises a plurality of wind speed-temperature sensors, is used for collecting wind speed and temperature parameters on the upper part of the fire source and around the fire source, and is connected with the terminal control system;

and the terminal control system is connected with the fire source system, the smoke generating system and the measuring system, and is used for collecting a fuel pressure value in the combustion disc, a fire source system weight value, a smoke flow value in the smoke generating system, a temperature value and a wind speed value on the upper part and the periphery of the fire source and controlling an electronic ignition device in the fire source system.

2. The hot smoke test device according to claim 1, wherein the burning tray is a rectangular burning tray, two adjacent sides of the burning tray are provided with downward turning grooves, the water bearing tray is a rectangular water bearing tray, and the burning tray is clamped into the upper edge of the side wall of the water bearing tray through the downward turning grooves.

3. The hot smoke test device according to claim 1, wherein a high temperature resistant level is fixed on the outer side of the side wall of the burning tray, and a plurality of height-adjustable support legs are arranged at the bottom of the burning tray.

4. The hot smoke test device according to any one of claims 1 to 3, wherein the pressure monitoring device comprises a hollow steel pipe and a micro-pressure sensor, the hollow steel pipe is a zigzag steel pipe, one end of the hollow steel pipe is connected to the bottom of the combustion disc, the other end of the hollow steel pipe is connected with the micro-pressure sensor, and the micro-pressure sensor is arranged on the outer side wall of the water bearing disc; the micro-pressure sensor is connected to a terminal control system through an analog/digital signal converter with a serial server;

5. The hot smoke test device according to any one of claims 1 to 3, wherein the smoke generating system comprises a smoke box, a chimney is arranged at the top of the smoke box, the gas flow rate sensor is arranged at the top end of the chimney, and the gas flow rate sensor is connected into a terminal control system through an analog/digital signal converter with a serial server; the bottom of the smoke box is provided with a caster.

6. The hot smoke test device of claim 5, wherein a bracket is arranged between the bottom of the smoke box and the caster;

and/or the side wall of the smoke box is provided with a steel protection plate.

7. The hot smoke test device according to claim 5, wherein two feeding ports are respectively formed at the upper and lower parts of the back surface of the smoke box, a steel mesh is fixed in the middle of the feeding ports inside the box body of the smoke box, and an iron tray is arranged at the bottom of the lower feeding port.

8. The hot smoke test apparatus of any one of claims 1 to 3, wherein the measurement system comprises a vertical rod, a cross rod, a measuring rod collar, a sensor collar, a wind speed-temperature sensor;

the vertical rod and the cross rod are connected to form a three-dimensional frame structure, the measuring rod lantern ring is a tee joint, the measuring rod lantern ring is sleeved on the cross rod and can move along the cross rod, the measuring rod is installed between the two measuring rod lantern rings, the sensor lantern ring is sleeved on the measuring rod and can move along the measuring rod, and the wind speed-temperature sensor is detachably installed in the sensor lantern ring.

9. The hot smoke test device according to claim 8, wherein a disc with a plurality of round holes is fixed on the vertical rod, the cross rod is a steel rod with grooves at two ends, round holes are also formed in the grooves, the grooves of the cross rod are embedded into the disc of the vertical rod, and the cross rod and the disc are connected through bolts.

10. The hot smoke test device according to any one of claims 1 to 3, wherein the wind speed-temperature sensor is made by compounding a vane wind speed sensor and a thermocouple, and a hollow sleeve is arranged at the rear part of the wind speed-temperature sensor, and a digital-analog signal converter and a power supply are arranged in the hollow sleeve; the rear end is provided with a high-temperature resistant wiring port and is accessed into a terminal control system through a high-temperature resistant data wire wrapped by asbestos.