CN201897579U - Flow control device for simulated fire brand - Google Patents
Flow control device for simulated fire brand Download PDFInfo
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- CN201897579U CN201897579U CN2010206223778U CN201020622377U CN201897579U CN 201897579 U CN201897579 U CN 201897579U CN 2010206223778 U CN2010206223778 U CN 2010206223778U CN 201020622377 U CN201020622377 U CN 201020622377U CN 201897579 U CN201897579 U CN 201897579U
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Abstract
The utility model discloses a flow control device for a simulated fire brand, which comprises a computer, a gas intelligent control meter, an auxiliary gas intelligent control meter, a temperature collecting intelligent meter, a thermocouple, a combustor, a gas resource, a gas mass flow meter, an auxiliary gas resource and an auxiliary gas mass flow meter, wherein the inlet of the gas mass flow meter is connected to the gas resource, while the outlet is connected to the combustor through a quick connector; the inlet of the auxiliary gas mass flow meter is connected to the auxiliary gas resource, while the outlet is connected to the combustor through the quick connector; the gas mass flow meter, the gas intelligent control meter and the computer are sequentiallyconnected ; the auxiliary gas mass flow meter, the auxiliary gas intelligent control meter and the computer are sequentially connected through leads; and the thermocouple, the temperature collecting intelligent meter and the computer are sequentially connected. By using the mass flow meters and combining with the control of the computer to the flow of the combustor, the flow control device can be used for remotely, real-time and accurately controlling different flows of fluid at different moments.
Description
Technical field
The utility model belongs to simulation burning things which may cause a fire disaster design field, particularly a kind of volume control device of simulating burning things which may cause a fire disaster.
Background technology
For plastic products such as the furniture of architectural decorative and fitting materials, indoor ornaments, ornament, electrical equipment, unsafe condition when testing its breaking out of fire, need test its burning performance, a kind of method that generally adopts is that contingent burning things which may cause a fire disaster of simulation is lighted test to sample at present, observe whether it spreads, phenomenon such as expansion, this method requires the simulation burning things which may cause a fire disaster not only certain flame size will be arranged, and requires the shape of flame to be consistent with the fire that actual capabilities take place.Such as combustibility test for mattress, when needs research match ignites mattress, just need a very little flame, flame when its release heat size and shape should be able to be burnt as a match, and if simulation sheet burning is ignited the situation of mattress, the simulation burning things which may cause a fire disaster that then needs a bigger large tracts of land to ignite.So according to different tested objects and purpose, required burner is different.
China utility model patent CN201555241U has announced a kind of portable test and training combustion system, it comprises control box, the fuel cartridge that is connected with the external fuel gas inlet of control box, the oil tank that is connected with control box fuel oil input port, the computing machine that is connected with control box data input/output interface, and the burner that is connected with control box combustion gas delivery outlet and oil-out.The shortcoming of this utility model is: (1) this system need use fuel oil and combustion gas to burn together simultaneously, forms large-scale in-site modeling state, is merely able to simulate large-scale scene of fire; (2) this system requirements uses special-purpose column type spray gun, can not use the burner of number of different types to carry out the simulation of burning things which may cause a fire disaster, can't be as much as possible near real combustion position.
China utility model patent CN201540211U has announced a kind of software furniture naked light combustion testing Iganition control system, it comprises main gas circuit, igniting gas circuit and test gas circuit, be serially connected with main air valve on the main gas circuit, one end of igniting gas circuit connects main gas circuit, the other end connects pilot burner, is serially connected with the igniting air valve on the igniting gas circuit; One end of test gas circuit connects main gas circuit, the other end connects combustion head, is serially connected with solenoid valve and gas meter on the test gas circuit, and a timer is connected to the solenoid valve on the test gas circuit, solenoid valve is controlled by timer, and pilot burner places near the gas vent of combustion head.The duration of ignition and the gas flow of this utility model may command burner, but because gas flow is regulated by the manually realization of spinner-type flowmeter needle-valve, there is following deficiency in this control method: the precision of (1) spinner-type flowmeter is generally not high, cause the metering of spinner-type flowmeter scale relatively more difficult, accuracy is relatively poor; (2) adjusting of spinner-type flowmeter flow must be adopted manual Field adjustment, can't control by remote auto, can't realize programmed control more; (3) reading of spinner-type flowmeter is subjected to the ectocines such as force value, flow velocity, pipeline situation before and after the pipeline bigger.
Therefore, need provide a kind of flow control accuracy high and can be to the full extent near the volume control device of the simulation burning things which may cause a fire disaster of the combustion position of burning things which may cause a fire disaster under the actual conditions.
The utility model content
The shortcoming that the purpose of this utility model is to overcome prior art provides a kind of volume control device of simulating burning things which may cause a fire disaster with not enough, and it has the flow control accuracy height, simulates the advantage of burning things which may cause a fire disaster near the combustion position of burning things which may cause a fire disaster under the actual conditions.
The utility model method realizes by following technical scheme: a kind of volume control device of simulating burning things which may cause a fire disaster, comprise computing machine, the combustion gas intelligent control instrument, combustion-supporting gas intelligent control instrument, the temperature acquisition intelligence instrument, thermopair, burner, gas source, the combustion gas quality flowmeter, combustion-supporting gas source of the gas, combustion-supporting makings amount flowmeter, described gas source links to each other with the inlet of combustion gas quality flowmeter, the outlet of combustion gas quality flowmeter is connected with burner by rapid-acting coupling, described combustion-supporting gas source of the gas links to each other with the inlet of combustion-supporting makings amount flowmeter, and the outlet of combustion-supporting makings amount flowmeter is connected with burner by rapid-acting coupling; Combustion gas quality flowmeter, combustion gas intelligent control instrument, computing machine connect successively, and combustion-supporting makings amount flowmeter, combustion-supporting gas intelligent control instrument, computing machine connect by lead successively; Thermopair, temperature acquisition intelligence instrument, computing machine connect successively.
Described combustion gas intelligent control instrument, combustion-supporting gas intelligent control instrument, temperature acquisition intelligence instrument can directly carry out communication by serial ports or USB interface with computing machine.
The kind of described gas source can be methane, acetylene, propane, butane, liquefied petroleum gas (LPG), rock gas.
The kind of described combustion-supporting gas source of the gas can be pressurized air, oxygen, bottled air, also can according to circumstances not use combustion-supporting gas.
Described burner can be blowtorch type burner, square burner, pin flame burner, linear burner device, T type burner.
A kind of flow control performing step of the simulation burning things which may cause a fire disaster based on said apparatus:
(1) system initialization: will simulate burning things which may cause a fire disaster and place desired location, connect each device in the system then, according to prior burning release heat speed to the resulting different moment of authentic material burning, information such as flame temperature, in computing machine, each gas flow and combustion air current amount is constantly set according to the time sequencing in the simulation burning things which may cause a fire disaster combustion process, open gas source and combustion-supporting gas gas source valve then, afterwards, the computer starting program, at first send an initial flow signal to the combustion gas intelligent control instrument, the corresponding combustion gas quality flowmeter of combustion gas intelligent control instrument control is opened, carry gas to burner, manually light the simulation burning things which may cause a fire disaster then;
(2) flow is controlled automatically: after the combustion of simulated fire source point, computing machine begins gas flow in the predefined combustion process and combustion air current amount signal are sent to combustion gas and combustion-supporting gas intelligent control instrument according to time sequencing with per second speed at least once, combustion gas and combustion-supporting gas intelligent control instrument are that electric current or voltage signal output to corresponding combustion gas quality flowmeter and combustion-supporting makings amount flowmeter with the flow number conversion of signals of computing machine input, combustion gas quality flowmeter and combustion-supporting makings amount flowmeter are regulated its internal valves and are rotated, and make the flow value of actual output reach desired value;
(3) real-time FEEDBACK CONTROL: in combustion process, thermopair is gathered the flame temperature at place, burner top in real time, by the temperature acquisition intelligence instrument temperature data is reached computing machine, operating personnel understand the Actual combustion situation of flame according to this temperature data situation of change, perhaps the setting value of gas flow and combustion air current amount is adjusted by the temperature signal of this feedback, thus the combustion position of adjusting burner;
(4) burning finishes: in the flow parameter of setting according to the time in advance, flow parameter is set at 0 when burning finishes, the flow of combustion gas quality flowmeter and combustion-supporting makings amount flowmeter is 0 when combustion process finishes, and its internal valves is closed, thereby finishes the process of whole simulated combustion.
In the described step (1), the initial flow signal is to be that 10-30s, constant flow are the signal of 0.5-1.5L/min the duration.
In the described step (3), after the temperature acquisition intelligence instrument reaches computing machine with temperature data, computing machine judges whether this temperature data is in range of set temperature, if this temperature data is higher than range of set temperature, computing machine reduces the combustion gas and the combustion air current amount of former setting so, otherwise then increase, wherein combustion gas and combustion air current amount change according to 0.05-0.2L/min, till the temperature data that feedback obtains is in range of set temperature.
The control signal of described combustion gas quality flowmeter and the input and output of combustion-supporting makings amount flowmeter is the current signal of 4～20mA or the voltage signal of 0～5V.
The heating power rate of release adjustable extent of described burner is 0～50kW.
The utility model compared with prior art has following advantage and beneficial effect:
1, the utility model adopts mass flowmeter, in conjunction with computing machine the flow of burner is controlled, and can control different fluids constantly long-range, in real time, exactly and reach different flow.
2, the utility model adopts mass flowmeter, owing to adopt the high-precision electronic sensor in the mass flowmeter, thus guaranteed the pinpoint accuracy that quality flowmeter flow quantity is regulated; Mass flowmeter adopts built-in high sensitivity electrically operated valve in addition, thereby can realize the conversion of electric control valve, and can carry out remote control operation easily; Mass flowmeter utilizes fluid to measure the flow of fluid through out-of-date thermal change, thereby has greatly reduced the influence of pipeline flow state to flow control.
3, link to each other by rapid-acting coupling between mass flowmeter and the burner in the utility model, can according to circumstances select the burner of all kinds or specification so easily.
Description of drawings
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the structural representation of available burner in the utility model;
Fig. 3 is the system architecture synoptic diagram that does not use combustion-supporting gas in the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, a kind of volume control device of simulating burning things which may cause a fire disaster, comprise computing machine 1, combustion gas intelligent control instrument 2, combustion-supporting gas intelligent control instrument 3, temperature acquisition intelligence instrument 4, thermopair 5, burner 6, gas source 10, combustion gas quality flowmeter 9, combustion-supporting gas source of the gas 11, combustion-supporting makings amount flowmeter 8, described gas source 10 links to each other with the inlet of combustion gas quality flowmeter 9, the outlet of combustion gas quality flowmeter 9 is connected with burner 6 by rapid-acting coupling 7, described combustion-supporting gas source of the gas 11 links to each other with the inlet of combustion-supporting makings amount flowmeter 8, and the outlet of combustion-supporting makings amount flowmeter 8 is connected with burner 6 by rapid-acting coupling 7; Combustion gas quality flowmeter 9, combustion gas intelligent control instrument 2, computing machine 1 connect successively, and combustion-supporting makings amount flowmeter 8, combustion-supporting gas intelligent control instrument 3, computing machine 1 connect by lead successively; Thermopair 5, temperature acquisition intelligence instrument 4, computing machine 1 connect successively.
Described combustion gas intelligent control instrument 2, combustion-supporting gas intelligent control instrument 3, temperature acquisition intelligence instrument 4 directly carry out communication with computing machine 1 by serial ports.
The kind of described gas source 10 is an acetylene.
The kind of described combustion-supporting gas source of the gas 11 is a pressurized air.
Described burner 6 is a blowtorch type burner.
The flow control step of the simulation burning things which may cause a fire disaster of being realized by said apparatus is specific as follows:
(1) system initialization: will simulate burning things which may cause a fire disaster and place desired location, connect each device in the system then, according to prior burning release heat speed to the resulting different moment of authentic material burning, information such as flame temperature, in computing machine, each gas flow and combustion air current amount is constantly set according to the time sequencing in the simulation burning things which may cause a fire disaster combustion process, open gas source and combustion-supporting gas gas source valve then, afterwards, the computer starting program, at first send an initial flow signal to the combustion gas intelligent control instrument, the corresponding combustion gas quality flowmeter of combustion gas intelligent control instrument control is opened, carry gas to burner, manually light the simulation burning things which may cause a fire disaster then;
(2) flow is controlled automatically: after the combustion of simulated fire source point, computing machine begins gas flow in the predefined combustion process and combustion air current amount signal are sent to combustion gas and combustion-supporting gas intelligent control instrument according to time sequencing with per second speed at least once, combustion gas and combustion-supporting gas intelligent control instrument are that electric current or voltage signal output to corresponding combustion gas quality flowmeter and combustion-supporting makings amount flowmeter with the flow number conversion of signals of computing machine input, combustion gas quality flowmeter and combustion-supporting makings amount flowmeter are regulated its internal valves and are rotated, and make the flow value of actual output reach desired value;
(3) real-time FEEDBACK CONTROL: in combustion process, thermopair is gathered the flame temperature at place, burner top in real time, by the temperature acquisition intelligence instrument temperature data is reached computing machine, operating personnel understand the Actual combustion situation of flame according to this temperature data situation of change, perhaps the setting value of gas flow and combustion air current amount is adjusted by the temperature signal of this feedback, thus the combustion position of adjusting burner;
(4) burning finishes: in the flow parameter of setting according to the time in advance, flow parameter is set at 0 when burning finishes, the flow of combustion gas quality flowmeter and combustion-supporting makings amount flowmeter is 0 when combustion process finishes, and its internal valves is closed, thereby finishes the process of whole simulated combustion.
In the described step (1), the initial flow signal is to be that 20s, constant flow are the signal of 0.65L/min the duration.
In the present embodiment, this device can be used to simulate certain vertically arranged electric wire, after its lower end electronic component is lighted owing to heating, can be ignited and to the test of vertical spread.When implementing, propane is adopted in combustion gas, and combustion-supporting gas just directly adopts air.In conjunction with data, the situation of Actual combustion to be simulated, the order that computing machine is set gas flow in simulation burning things which may cause a fire disaster combustion process is: in the 0-20s, the propane constant flow is 0.65L/min, and air mass flow is constant to be 0; In the 21-120s, the propane flow remains unchanged, and air mass flow increases gradually with the speed of 0.1L/min, to total flow be 10L/min; In the 121s-180s, the propane constant flow is 0.65L/min, and air mass flow is constant in 10L/min, and propane flow and air mass flow all are set to 0 after the 180s, and burner flame extinguishes automatically.Phase one in this process, in the 0-20s, blowtorch type burner is lighted under the low discharge situation, in the subordinate phase 21-120s, the flow of regulating combustion gas and air increases to target flow gradually, 121s begins sample igniting is moved to the sample lower end with burner, keeps flow constant and continue to 180s, and igniting afterwards finishes, burner cuts out automatically, remove burner, observe the state of burning, can judge whether this electric wire meets the relative combustion performance requirement.
The control signal of described combustion gas quality flowmeter 9 and 8 input and output of combustion-supporting makings amount flowmeter is the current signal of 4～20mA.
The heating power rate of release adjustable extent of described burner 6 is 0～50kW.
Present embodiment except that following characteristics other structures with embodiment 1: as shown in Figure 3, the combustion-supporting makings amount flowmeter 8 in embodiment 1 device, combustion-supporting gas intelligent control instrument 3, combustion-supporting gas source of the gas 11 are removed, when the burning of simulation burning things which may cause a fire disaster, are not used combustion-supporting gas.
Described combustion gas intelligent control instrument 2, combustion-supporting gas intelligent control instrument 3, temperature acquisition intelligence instrument 4 directly carry out communication with computing machine 1 by USB interface.
The kind of described gas source 10 is a methane.
Described burner is the pin flame burner, and structure is shown in 15 among Fig. 2.
Present embodiment except that following characteristics other structures with embodiment 1: the control signal of described combustion gas quality flowmeter 9 and 8 input and output of combustion-supporting makings amount flowmeter is the voltage signal of 0～5V.
The kind of described gas source 10 is a propane.
The kind of described combustion-supporting gas source of the gas 11 is an oxygen.
Described burner is the linear burner device, and structure is shown in 13 among Fig. 2.
In the flow control step (3) of simulation burning things which may cause a fire disaster, after the temperature acquisition intelligence instrument reaches computing machine with temperature data, computing machine judges whether this temperature data is in range of set temperature, if this temperature data is higher than range of set temperature, computing machine reduces the combustion gas and the combustion air current amount of former setting so, otherwise then increase, wherein combustion gas and combustion air current amount reduce according to 0.05-0.2L/min, till the temperature data that feedback obtains is in range of set temperature.
Present embodiment except that following characteristics other structures with embodiment 1: the kind of described gas source 10 is a butane.
The kind bottled air of described combustion-supporting gas source of the gas 11.
Described burner is a T type burner, and structure is shown in 14 among Fig. 2.
Present embodiment except that following characteristics other structures with embodiment 1: the kind of described gas source 10 is a liquefied petroleum gas (LPG).
Described burner is square burner, and structure is shown in 12 among Fig. 2.
Present embodiment except that following characteristics other structures with embodiment 1: the kind of described gas source 10 is a rock gas.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (5)
1. volume control device of simulating burning things which may cause a fire disaster, it is characterized in that, comprise computing machine, the combustion gas intelligent control instrument, combustion-supporting gas intelligent control instrument, the temperature acquisition intelligence instrument, thermopair, burner, gas source, the combustion gas quality flowmeter, combustion-supporting gas source of the gas, combustion-supporting makings amount flowmeter, described gas source links to each other with the inlet of combustion gas quality flowmeter, the outlet of combustion gas quality flowmeter is connected with burner by rapid-acting coupling, described combustion-supporting gas source of the gas links to each other with the inlet of combustion-supporting makings amount flowmeter, and the outlet of combustion-supporting makings amount flowmeter is connected with burner by rapid-acting coupling; Combustion gas quality flowmeter, combustion gas intelligent control instrument, computing machine connect successively, and combustion-supporting makings amount flowmeter, combustion-supporting gas intelligent control instrument, computing machine connect by lead successively; Thermopair, temperature acquisition intelligence instrument, computing machine connect successively.
2. the volume control device of simulation burning things which may cause a fire disaster according to claim 1 is characterized in that, described combustion gas intelligent control instrument, combustion-supporting gas intelligent control instrument, temperature acquisition intelligence instrument and computing machine directly carry out communication by serial ports or USB interface.
3. the volume control device of simulation burning things which may cause a fire disaster according to claim 1 is characterized in that, the kind of described gas source is methane, acetylene, propane, butane, liquefied petroleum gas (LPG), rock gas.
4. the volume control device of simulation burning things which may cause a fire disaster according to claim 1 is characterized in that, the kind of described combustion-supporting gas source of the gas is pressurized air, oxygen, bottled air.
5. the volume control device of simulation burning things which may cause a fire disaster according to claim 1 is characterized in that, described burner is blowtorch type burner, square burner, pin flame burner, linear burner device, T type burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206223778U CN201897579U (en) | 2010-11-24 | 2010-11-24 | Flow control device for simulated fire brand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206223778U CN201897579U (en) | 2010-11-24 | 2010-11-24 | Flow control device for simulated fire brand |
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| CN201897579U true CN201897579U (en) | 2011-07-13 |
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| CN2010206223778U Expired - Fee Related CN201897579U (en) | 2010-11-24 | 2010-11-24 | Flow control device for simulated fire brand |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062410A (en) * | 2010-11-24 | 2011-05-18 | 广州市建筑材料工业研究所有限公司 | Method and device for controlling flow of simulation fire source |
| CN102435633A (en) * | 2011-12-19 | 2012-05-02 | 通标标准技术服务(上海)有限公司 | Furniture heat test device |
| CN109187617A (en) * | 2018-06-27 | 2019-01-11 | 金杯电工衡阳电缆有限公司 | A kind of 1500 DEG C of fire-resisting cable static state fire resistance test methods of superhigh temperature |
| CN109595550A (en) * | 2017-09-30 | 2019-04-09 | 上海雄成节能技术有限公司 | A kind of energy-saving and emission-reducing burner and combustion method |
| CN112881056A (en) * | 2021-01-29 | 2021-06-01 | 国网北京市电力公司 | Fire source system for simulating fire of power cable in cable tunnel |
-
2010
- 2010-11-24 CN CN2010206223778U patent/CN201897579U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062410A (en) * | 2010-11-24 | 2011-05-18 | 广州市建筑材料工业研究所有限公司 | Method and device for controlling flow of simulation fire source |
| CN102062410B (en) * | 2010-11-24 | 2012-05-23 | 广州市建筑材料工业研究所有限公司 | Method for controlling flow of simulation fire source |
| CN102435633A (en) * | 2011-12-19 | 2012-05-02 | 通标标准技术服务(上海)有限公司 | Furniture heat test device |
| CN109595550A (en) * | 2017-09-30 | 2019-04-09 | 上海雄成节能技术有限公司 | A kind of energy-saving and emission-reducing burner and combustion method |
| CN109187617A (en) * | 2018-06-27 | 2019-01-11 | 金杯电工衡阳电缆有限公司 | A kind of 1500 DEG C of fire-resisting cable static state fire resistance test methods of superhigh temperature |
| CN112881056A (en) * | 2021-01-29 | 2021-06-01 | 国网北京市电力公司 | Fire source system for simulating fire of power cable in cable tunnel |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20181124 |