CN201707091U

CN201707091U - Intelligent gas meter with safety protection function

Info

Publication number: CN201707091U
Application number: CN2010201594095U
Authority: CN
Inventors: 林路生
Original assignee: ANHUI HONGLING INTELLIGENT INSTRUMENT AND METER RESEARCH DEVELOPMENT CENTER
Current assignee: ANHUI HONGLING INTELLIGENT INSTRUMENT AND METER RESEARCH DEVELOPMENT CENTER
Priority date: 2010-04-14
Filing date: 2010-04-14
Publication date: 2011-01-12
Anticipated expiration: 2020-04-14

Abstract

The utility model relates to a gas meter, in particular to an intelligent gas meter with a safety protection function, which comprises a meter body, a single chip microcomputer, an electromagnetic valve and the like. The single chip microcomputer is mounted inside the meter body, and the electromagnetic valve mounted on a user gas pipeline is connected with the single chip microcomputer. The intelligent gas meter is characterized in that a gas sensor is mounted on the meter body, the gas sensor is connected with the single chip microcomputer via a signal regulating circuit, and a grid-shaped protective cover is mounted outside the gas sensor. The intelligent gas meter adopts a high-performance processor with low power consumption as a core controller, adopts air-sensitive elements with low power consumption, and a signal regulating and power management circuit to detect the concentration of combustible gas in surrounding environment to judge whether gas is leaked or not, and performs alarming and gas source disconnection according to conditions.

Description

Intelligent gas meter with safety protection function

[technical field]

The utility model relates to a kind of gas meter, flow meter, particularly a kind of intelligent gas meter with safety protection function.

[background technology]

Along with the raising of economic development and environmental consciousness, people are increasing to the demand of the energy, and rock gas, liquefied gas are used widely in daily life and commercial production as green energy resource, and in China, rock gas uses and spreaded all over urban and urual areas of whole country.The metering outfit that gas meter, flow meter uses as combustion gas is along with popularizing of combustion gas also is deep into huge numbers of families.At present gas meter or other gas meter, flow meters of family or industrial use only provide the consumption indication of coal gas etc. usually, and do not possess otherwise function, especially do not possess safety guarantee function.When the flame on the Gas appliance sprinkled by liquid go out or to be gone out by wind or cause owing to reasons such as dying, take off pressure flame-out after, promptly gas leakage can take place, certainly, the gas leakage accident also may take place in pipelines etc., thereby cause serious accidents such as poisoning, fire and blast, work the mischief to the people's lives and property.At present the indoor gas pipeline does not generally have special safety control, mainly is to add smellyly in combustion gas, judges if any the sense of smell of leaking the general people of dependence.Leakage alarm or device perhaps are installed; come the leakage of perception combustion gas by the inflammable gas sensitive element; this technology is not suitable for being applied to the interior place of family; mainly be because many times family is unmanned; above-mentioned in this case technology just can't provide effective protection, very easily causes serious accident in case leak.

[utility model content]

The purpose of this utility model provides and a kind ofly increases gas security on the basis of intelligent gas meter, and gas leakage is reported to the police and cut off source of the gas automatically and handle, and prevents trouble before it happens.

The utility model solves the problems of the technologies described above by the following technical programs: the intelligent gas meter with safety protection function; comprise parts such as table body, one-chip computer and solenoid valve; described one-chip computer is installed in the described table body; described solenoid valve is installed on the house lead in gas pipeline and with described one-chip computer and is connected; on the described table body gas security is housed, described gas security is connected with described one-chip computer by signal conditioning circuit.

Technical characterictic of the present utility model is that also described gas security outside is equipped with the lattice-shaped protective cover; can guarantee that not only the gas sensor of sensor reliably contacts with air; and have certain dustproof effect, can also protect fragile gas sensor to avoid outside destroy.

Principle of work of the present utility model is: gas security and signal conditioning circuit are worked under the control of one-chip computer, one-chip computer sends instruction to power control circuit, power up and start working to gas security: gas security becomes electric signal output with the concentration value of inflammable gas, modulate circuit is given one-chip computer by conversion with electric signal, one-chip computer is through behind the suitable time-delay, startup A/D carries out data conversion simulating signal is become data-signal, is converted into the actual concentrations value through algorithm processor again.One-chip computer has judged whether gas leakage according to concentration value, if concentration value greater than the capping value then judge to have and leak to take place, is closed the solenoid valve on the house lead in gas pipeline, sends control signal simultaneously and gives exhaust equipment (as vent fan), sends alerting signal.After leaking, one-chip computer is monitored gas concentration value always, if concentration value less than preset lower limit, is removed and reported to the police, opens the solenoid valve on the house lead in gas pipeline, recovers air feed.

The utility model adopts the high-performance low-power-consumption processor as core controller, adopt the concentration of gas sensor, signal condition and the electric power management circuit detection surrounding environment inflammable gas of low-power consumption, judged whether that gas leaks, according to circumstances reported to the police and source of the gas cut-off part reason.Under some outstanding situations, as the unignited kitchen range of repeatedly striking sparks, may cause that statistical tables and reports are alert and cut off source of the gas that this table is judged environmental gas concentration continuously, can recover air feed automatically.

[description of drawings]

The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the utility model front view;

Fig. 2 is the utility model structural representation;

Fig. 3 is the logic relation picture of the utility model circuit part.

[embodiment]

Referring to Fig. 1,2,3; intelligent gas meter with safety protection function; comprise table body 1, one-chip computer, signal input port and parts such as signal output port and solenoid valve; described one-chip computer is installed in the table body 1, and described solenoid valve is installed on the house lead in gas pipeline and with described one-chip computer and is connected.On the table body 1 gas security 2 is housed, gas security 2 is connected with described one-chip computer by signal conditioning circuit.A lattice-shaped protective cover 3 is equipped with in gas security 2 outsides.

Advantages such as described one-chip computer adopts the little power consumption processor of MSP430 of TI company, and this preparation implement has low in energy consumption, stable performance, and the integrated multiple interfaces of monolithic, temperature range are wide.Show and adopt LCD, prompt and segment encode display mode, wide temperature work.Gas security 2 adopts low-power consumption gas sensor and special signal conditioning module, sensor has the sensitivity high and low temperature and floats characteristics, and the increase power management module is realized the low-power consumption processing, gas concentration value can be become electric signal, the translation data signal carries out signal Processing by described one-chip computer.Solenoid valve adopts valve-embedded, cuts off source of the gas when gas leakage takes place, and recover source of the gas under safe concentration.Because the sensor power consumption is relatively large, when normal process, adopt regularly to power up sampling, continuous sampling is handled when taking place to leak.Total system adopts powered battery.

According to actual needs, signal input port and signal output port can be installed, on the table body 1 to satisfy the high-end user demand.Signal input port is used to receive external control signal, or adopts outer sensor and the interface reserved.Signal output port is mainly used in when gas leakage takes place, and send control signal and take urgent measure for other equipment, as: vent fan, air switch etc.

Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.

Claims

1. the intelligent gas meter that has safety protection function; comprise parts such as table body, one-chip computer and solenoid valve; described one-chip computer is installed in the described table body; described solenoid valve is installed on the house lead in gas pipeline and with described one-chip computer and is connected; it is characterized in that: on the described table body gas security is housed, described gas security is connected with described one-chip computer by signal conditioning circuit.

2. according to the described intelligent gas meter with safety protection function of claim 1, it is characterized in that: the lattice-shaped protective cover is equipped with in described gas security outside.

3. according to claim 1 or 2 each described intelligent gas meters, it is characterized in that: on the described table body signal input port and signal output port are housed with safety protection function.

4. according to the described intelligent gas meter with safety protection function of claim 3, it is characterized in that: described signal output port is connected with exhaust fan.