CN2781250Y

CN2781250Y - Self-control induced ventilation equipment

Info

Publication number: CN2781250Y
Application number: CN 200520011282
Authority: CN
Inventors: 胡利亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-31
Filing date: 2005-03-31
Publication date: 2006-05-17
Anticipated expiration: 2015-03-31

Abstract

The utility model relates to self-control induced ventilation equipment which is designed for solving the problem that the self-control induced ventilation equipment in the prior art can not control automatically under the condition that a fire happens. The utility model comprises a CO induction sensor used for inducting the CO content in the air, a control module which judges to emit the corresponding control signals according to the transferred information transferred by the CO induction sensor and a driving module of the induced ventilation equipment, which is used for driving a corresponding induced ventilation ventilator corresponding according to the emitted control signals of the control module, wherein the output end of the CO induction sensor is connected with the input end of the control module and the input end of the driving module; the output end of the control module is connected with the input end of the driving module. The control module also comprises a second input end; the second input end is connected with a fire-inducting module which is used for inducting whether a fire happens.

Description

Automatic control induced draught equipment

Technical field

The utility model relates to a kind of induced draught equipment, and particularly a kind of being used for realized quick ventilation automatic control induced draught equipment in underground garage or a greater room.

Background technology

China builds skyscraper in a large number at present, all is provided with underground parking garage in the design.In order to prevent the delay of vehicle exhaust in the garage parking, so in the garage parking, force ventilation equipment must be set.

Because it is very strict that underground parking garage requires, and the air-conditioning requirement of reason can not satisfy underground parking garage such as traditional hybrid exhaust equipment causes local air-flow to be detained owing to easily produce the short circuit of air-flow, and efficient is low, people have invented induced draught equipment for this reason.The central principle that induced draught equipment is is, utilize the law of conservation of momentum, wind bundle with certain energy is sprayed at a high speed, make it diffuse into one " wind face " gradually, gather and artificial each " wind face " is arranged in a gas shutoff wall, advance by the path of setting, and contaminated air is on the way carried, move to the appointed place.Because wind has the shape uncertainty, so can follow in the way, the conversion of various sectional areas and changing is full of whole space wall just as a piston and travels forward.Therefore than the efficient high characteristics of conventional hybrid formula exhaust equipment.

Beijing Municipal Architecture Design and Research Institute has been listed this system and equipment in the 6th piece of the 4th joint of " Architectural Equipment Specialty Design technological facilities " chapter 3 in 1999.Measure explicitly calls for: garage parking force ventilation should be adopted the injecting flow guiding draft type, with well ventilation in the assurance garage, and effective floor height in minimizing airduct expense and garage.Because replaced traditional airduct, reduced taking up room of airduct, reduce the purpose that the building floor height reduces cost investment thereby reach.

In the actual use of induced draught equipment, along with the popularization of using, people have also proposed requirements of saving energy gradually; And owing to can't recognize the parameters such as concrete time, position and total amount that vehicle exhaust takes place, therefore, it is that experience with administrative staff is controlled that existing induced draught equipment opens or closes.Because the improvement of Hyundai Motor fuel, plumbous content with sulphur is more and more lower, and CO is the harmful substances that mainly contains of vehicle exhaust.Therefore people have invented conservation measures, promptly install self-con-tained unit additional in original induced draught equipment, utilize self-con-tained unit to realize that the equipment of inducing determines whether start work according to real-time air quality.Existing self-con-tained unit comprises CO inductive pick-up and control module; The CO inductive pick-up is used for responding to air quality and exports induction information to control module, the information that control module then transmits according to the CO inductive pick-up, judge, promptly when control module has detected CO concentration in the underground garage and has surpassed the limit of setting by the CO inductor, then control the corresponding induced draught device power-up of corresponding driving module drive, otherwise control module is then controlled corresponding induced draught equipment and is in off working state.

But along with going deep into of practice, the disaster hidden-trouble of this cover control method highlights.Because it is multifarious generating the reason of CO.If under the breaking out of fire situation, inductor has detected the CO concentration over-standard, and control module makes the work of induced draught device power-up, can make then that there arose a mighty wind and the fire went rolling and blazing, leads to bigger disaster.

The utility model content

The purpose of this utility model is to overcome above-mentioned defective, provides that a kind of self-control is strong, management cost is low, can stop the automatic control induced draught equipment of disaster hidden-trouble.

For achieving the above object, the utility model automatic control induced draught equipment comprises: the CO inductive pick-up is used for responding to the content of air CO; Control module according to the information that the CO inductive pick-up transmits, is judged, and sends control signal corresponding; The induced draught device driver module, send control signal according to control module and be used for driving corresponding induced draught blower fan, wherein, the output of described CO inductive pick-up is connected control module driver module input, the output of described control module is connected with the input of driver module, and described control module also comprises one second input; Be connected with a fire induction module on described second input, whether promising fire takes place in order to induction.

After adopting said structure, utilize CO probe 11 and fire 21 two paths of signals of popping one's head in to control the duty of persuader jointly, any time, as long as 21 variations of sensing surrounding environment of fire probe exceed setting value, signal output is arranged, the equipment of inducing is not all worked; Have only when confirming not have corresponding fire signal, and when the pollution level of CO has exceeded the value of setting in the air, just start working.Thereby avoid opening by mistake machine and cause fire spreading.Thereby stop disaster hidden-trouble, can really realize unmanned, reduce management cost.

Description of drawings

Fig. 1 is the circuit block diagram of the utility model automatic control induced draught equipment.

Fig. 2 is the control flow chart of control module in the utility model automatic control induced draught equipment.

Fig. 3 is the circuit diagram of the utility model automatic control induced draught equipment shown in Figure 1.

The specific embodiment

As shown in Figure 1, a kind of automatic control induced draught equipment comprises: CO induction module 1, and it is made up of CO probe 11 and signal processing module 12, is used for responding to the content of air CO; Control module 3 according to the information that the CO induction module transmits, is judged, and sends control signal corresponding; Driver module 4, send control signal according to control module and be used for driving corresponding induced draught blower fan, wherein, the output of described CO induction module 1 is connected control module driver module input, and the output of described control module 3 is connected with the input of driver module 4; Described driver module 4 also comprises one second input; Be connected with a fire induction module 2 on described second input, it is made up of fire inductive probe 21 and corresponding signal process module 22, and whether be used for responding to has fire to take place.

Above-mentioned fire induction module can be for various ways, as UV sensor, smoke sensing sensor, temperature sense sensor or optoelectronic induction sensor etc., more can be the combination of above-mentioned multiple sensors.

After adopting said structure, utilize CO probe 11 and fire 21 two paths of signals of popping one's head in to control the duty of persuader jointly.Its logical relation sees Table:

		The output of fire probe
		The output of fire probe		1	0
		The CO output of popping one's head in	1	1	0	-	+
0	-		1	-		-	+

Referring to last figure and Fig. 2 as seen, any time, as long as 21 variations of sensing surrounding environment of fire probe exceed setting value, signal output is arranged, the equipment of inducing is not all worked; Have only when confirming not have corresponding fire signal, and when the pollution level of CO has exceeded the value of setting in the air, just start working.Thereby avoid opening by mistake machine and cause fire spreading.Thereby stop disaster hidden-trouble, can really realize unmanned, reduce management cost.

Consider the flexibility in the practical application, this patent control system can realize manual mode, automatic monitoring mode, timing start-up shutdown mode; Automatic monitoring+timing mode.But all patterns are all followed could start work under the above-mentioned logical relation prerequisite.

Above-mentioned control module can adopt various cyclelogs, as adopting single-chip microcomputer, PLC program processor etc.

Fig. 3 is a preferred embodiment of the utility model automatic control induced draught equipment, below in conjunction with Fig. 3 the utility model is further described.

Wherein, what fire induction module 1 adopted is the smoke sensing sensor, what its Sensor section 21 adopted is the ionic smoke sensor probe, what signal processing module 22 adopted is that ionic smoke sensor is surveyed special chip MC14468, and exports the variation of detected smog by the I/O output (2 pin) of MC14468; What control module 3 adopted is 8751 single-chip microcomputers, and it utilizes INT0 end and INT1 end as signal input part, and wherein the 1NT1 end is connected with the I/O output of MC14468, and the INT0 end is connected with the output of CO induction sensing module by socket J2; It utilizes the T1 end as the output that drives signal, in order to control driver module (not shown).It utilizes P00, P01, P02 end OPADD signal to decoder U4, and exports audible-visual annunciator to by the Y7 pin of decoder U4, is used for sending when the breaking out of fire situation sound, light warning.

Claims

1, a kind of automatic control induced draught equipment comprises: the CO inductive pick-up is used for responding to the content of air CO; Control module according to the information that the CO inductive pick-up transmits, is judged, and sends control signal corresponding; The induced draught device driver module, send control signal according to control module and be used for driving corresponding induced draught blower fan, wherein, the output of described CO inductive pick-up is connected control module driver module input, the output of described control module is connected with the input of driver module, it is characterized in that: described control module also comprises one second input; Be connected with a fire induction module on described second input, whether promising fire takes place in order to induction.

2, automatic control induced draught equipment as claimed in claim 1, it is characterized in that: described fire induction module is made of the smoke sensing sensor.

3, automatic control induced draught equipment as claimed in claim 2, tool is characterised in that: described smoke sensing sensor is the ionic smoke sensor sensor.

4, automatic control induced draught equipment as claimed in claim 1, it is characterized in that: described fire induction module is made of the temperature sense sensor.

5, automatic control induced draught equipment as claimed in claim 1 is characterized in that: described control module adopts and is made of single-chip microcomputer.

6, automatic control induced draught equipment as claimed in claim 1, it is characterized in that: described single-chip microcomputer is 8751.

7, automatic control induced draught equipment as claimed in claim 1, it is characterized in that: also comprise an audible-visual annunciator, described control module also comprises one second output, and the input of described audible-visual annunciator is connected with second output of described control module.