CN201006220Y - Low concentration smoke producer - Google Patents
Low concentration smoke producer Download PDFInfo
- Publication number
- CN201006220Y CN201006220Y CNU2007200105418U CN200720010541U CN201006220Y CN 201006220 Y CN201006220 Y CN 201006220Y CN U2007200105418 U CNU2007200105418 U CN U2007200105418U CN 200720010541 U CN200720010541 U CN 200720010541U CN 201006220 Y CN201006220 Y CN 201006220Y
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- display module
- transformer
- current
- voltage
- current signal
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Abstract
A low-density smoke generator belonging to fire hazard automatic detection alarm technical field, comprises a device installment portion and a working area portion. The device installment portion is composed of a pressure adjuster, a transformer, a current signal collector, a voltage display module, and a current display module. The pressure adjuster is connected with the transformer, the transformer is serially connected with a current signal collector and a sample, the current display module is parallel connected with a current signal collector, and the voltage display module collects the voltage signal of the sample. The utility model can resolve the problem of current bias caused by the different samples and realize low-density smoke via passing constant large current through wire, to provide a reliable detector of high-sensitivity adsorption smoke detector.
Description
Technical field
The utility model belongs to the automatic fire detection-alarm field, particularly a kind of low concentration smoke generating device.
Background technology
Based on the fire characteristic product---the conventional fire detection mode of cigarette, temperature, light (heat radiation) and gas, pursue the raising of detectivity untiringly all the time, use by finding that earlier the condition of a fire realizes the early-warning and predicting of fire.
At present in the fire detecting and alarm field, some have occurred and be used for fire and protect purpose in early days, have the technology and the product of catastrophe prevention and rejection feature.Major product is the air suction type high sensitive smoke detector, and the type detector mode of operation is the active probe mode, and detectivity is high, can active probe take place to carry out in early days at fire, and in time report to the police.
The smog that detects when producing at common optical detector of fire smoke mainly adopts generations of glowing of material such as santal, and the generation smokescope is big, and uniformity is wayward during low concentration.And carry out mainly adopting aerosol generator to demarcate when sensitivity detects at common optical detector of fire smoke, this checkout gear costs an arm and a leg, and can't popularize in a large number.
The smokescope of existing smoke generating device fails to meet the detection requirement of highly sensitive air suction type smoke fire detector.
Summary of the invention
At problems of the prior art, the utility model provides a kind of low concentration smoke generating device.
Apparatus of the present invention comprise shell, apparatus mounting plate, pressure regulator, transformer, work line connection board, current signal collecting unit, voltage display module, electric current display module.The 220V power supply is delivered to transformer and is carried out voltage transformation after the pressure regulator pressure regulation, voltage after the conversion is connected to the current signal collecting unit, current signal collecting unit, voltage display module are gathered the laboratory sample signal, are shown by voltage, electric current display module at last, as shown in Figure 1.Wherein the shell volume that is used to provide certain carries out smog and mixes, and the work line connection board is used for the installation test sample.
Whole device is divided into equipment mounting portion and working region part with the work line connection board.Work line connection board and body seal are connected to form the working region, be tightly connected and make mounting portion and working region two parts not have cross-ventilation, shell one side is provided with the installation window, and cover top portion is provided with the smog that cooperates the air suction type smoke fire detector and gathers hole and return air hole.
The equipment mounting portion places under the working region, comprises apparatus mounting plate, switch, pressure regulator, transformer, current signal collecting unit, electric current and voltage display unit.Described all devices all are installed on the apparatus mounting plate, and pressure regulator links to each other with transformer, switch respectively; The current signal collecting unit links to each other with transformer, electric current and voltage display unit respectively.Wherein current signal collecting unit, voltage display unit all link to each other with the work line connection board.The apparatus mounting plate bottom is provided with roller.
Adopt wide input pressure regulator to cooperate the transformer of customization in apparatus of the present invention, realized that device to effective inhibition that supply voltage disturbs, has solved the influence that different experiments sample deviation is brought current deviation; Voltage, electric current display interface are provided, regulate for electric current and provide convenience; Same wire by constant current, has been realized the generation of m≤0.8%obs/m (representing with light extinction rate) low concentration smog, for the production testing of highly sensitive air suction type smoke fire detector provides a kind of reliable device.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram;
Fig. 2 is the utility model circuit theory diagrams;
Fig. 3 is the utility model structural representation;
Wherein, 1 installs window, 2 transformers, and 3 pressure regulators, 4 switches, 5 rollers, 6 power supply lead wires, 7 electric current display modules, 8 current sensors, 9 gather hole, 10 return air holes, 11 line connection boards, 12 shells, 13 apparatus mounting plates, 14 voltage display modules.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Figure 2 shows that this example circuit schematic diagram, the 220V power supply is connected to pressure regulator T1 input through switch S 1, fuse F1, the output of pressure regulator T1 links to each other with the former limit of transformer T2, the secondary of transformer T2 is connected with current sensor I1, laboratory sample RTN and is formed the loop, electric current shows that V3 is in parallel with current sensor I1, to show the current signal of laboratory sample, voltage shows that V2 is related with laboratory sample, to show the voltage signal of laboratory sample.Wherein voltage shows that V2, electric current show that V3 adopts the SX48-AV20 of petrel Zhao electronics technology Co., Ltd, SX48-AA5 respectively; Pressure regulator T1 adopts the equal pressure stabilizing device TDGC2-2KVA of Manufacturing Co., Ltd of Shanghai power; Current sensor I1 adopts Shanghai Sheng Jiang transformer BH-0.6620-5; Transformer T2 power is 100 watts, and 220 volts of input voltages are exported 6 volts.
Figure 3 shows that this example device structural representation, device is that the boundary is divided into working region part and equipment mounting portion with line connection board 11, apparatus mounting plate 13 and line connection board 11 constitution equipment mounting portions, roller 5 is equipped with in the apparatus mounting plate bottom, and its inside is equipped with power supply lead wire 6, switch 4, pressure regulator 3, transformer 2, current sensor 8, electric current display module 7, voltage display module 14; The working region is tightly connected by shell 12 and line connection board 11 and forms, and shell 12 1 sides are provided with installs window 1, and its top is provided with gathers hole 9, return air hole 10.
Claims (3)
1. low concentration smoke generating device, comprise equipment mounting portion and working region part, it is characterized in that the equipment mounting portion is made of pressure regulator, transformer, current signal collecting unit, voltage display module, electric current display module, pressure regulator links to each other with transformer, transformer is connected with current signal collecting unit, laboratory sample and is formed the loop, and the electric current display module is in parallel with the current signal collecting unit, the voltage display module is gathered the laboratory sample voltage signal.
2. a kind of low concentration smoke generating device as claimed in claim 1 is characterized in that described working region is connected to form by work line connection board and body seal.
3. a kind of low concentration smoke generating device as claimed in claim 2 is characterized in that described shell one side is provided with the installation window, and the top is provided with smog and gathers hole and return air hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200105418U CN201006220Y (en) | 2007-02-09 | 2007-02-09 | Low concentration smoke producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200105418U CN201006220Y (en) | 2007-02-09 | 2007-02-09 | Low concentration smoke producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201006220Y true CN201006220Y (en) | 2008-01-16 |
Family
ID=39002162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200105418U Expired - Fee Related CN201006220Y (en) | 2007-02-09 | 2007-02-09 | Low concentration smoke producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201006220Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288454A (en) * | 2011-06-29 | 2011-12-21 | 中国科学技术大学 | Smoldering smoke particle collecting equipment for electrical conductor |
| CN102425945A (en) * | 2011-08-15 | 2012-04-25 | 公安部天津消防研究所 | Combustion device for preparing standard fume sample |
-
2007
- 2007-02-09 CN CNU2007200105418U patent/CN201006220Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288454A (en) * | 2011-06-29 | 2011-12-21 | 中国科学技术大学 | Smoldering smoke particle collecting equipment for electrical conductor |
| CN102425945A (en) * | 2011-08-15 | 2012-04-25 | 公安部天津消防研究所 | Combustion device for preparing standard fume sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080116 Termination date: 20110209 |