Gas leak detection system
Technical field
The utility model relates to a kind of gas leak detection system, belongs to safety monitoring technology field.
Background technology
At present, in daily life, the application of coal gas, rock gas is day by day extensive, also inflammable and explosive or poisonous gas can be often used in the processing in some chemical plant, because many reasons such as the aging of gas transmission pipeline and human factor may cause Leakage Gas, bring great potential safety hazard to people's lives and properties.For eliminating danger timely when there is hidden danger, people have invented gas leak detection alarm.Sensor, alarm and solenoid valve three parts that the gas concentration that generally includes gas leak detection alarm detects, when the sensor that gas concentration detects detects that the concentration of Leakage Gas reaches certain index, start alarm and send chimes of doom solenoid valve startup simultaneously closedown source of the gas master switch.For some portable gas leak detection alarms, then comprise sensor and alarm two parts of gas concentration detection, after sensor detects the gas of leakage, namely send alerting signal.Gas leak detection alarm of the prior art, the probe of sensor is used for detecting leakage gas, but air delivering pipeline repeatedly may bend in a lot of corner, causes popping one's head in likely cannot detecting darker place, causes monitoring error.
Utility model content
Therefore, the purpose of this utility model is to overcome defect of the prior art, provides a kind of gas leak detection system avoiding monitoring error.
To achieve these goals, a kind of gas leak detection system of the present utility model, comprise sensor and alarm, described sensor comprises probe, described probe is arranged in vacuum tank, described vacuum tank is communicated in connecting pipe, and described connecting pipe is provided with valve, and described connecting pipe is provided with connecting pipe termination away from one end of described vacuum tank; Described vacuum tank is also provided with air pump, and one end of described air pump is communicated in the chamber of described vacuum tank, and the other end is communicated in air.
Described connecting pipe is flexible pipe; Described connecting pipe, through the end to end sleeve pipe of multistage, is connected by joint spider between adjacent described sleeve pipe.
Adopt technique scheme, gas leak detection system of the present utility model, during use, region to be measured is inserted in connecting pipe termination, open the valve on connecting pipe, air is entered in vacuum tank detected by probe again, even if thus connecting pipe termination cannot be inserted into the position that air delivering pipeline may be revealed, so the negative-pressure sucking of vacuum tank also as far as possible by ambient air inspiration, thus can avoid the situation that can not find Leakage Gas.By connecting pipe is set to flexible pipe, and described connecting pipe is through the end to end sleeve pipe of multistage, connected by joint spider between adjacent described sleeve pipe, then can multi-angle rotation between the end to end sleeve pipe of multistage, thus convenient connecting pipe termination to be stretched in difform area of space.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of multistage sleeve pipe.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of gas leak detection system, comprise sensor 101 and alarm 102, described sensor 101 comprises probe 101a, described probe 101a is arranged in vacuum tank 103, described vacuum tank 103 is communicated in connecting pipe 104, and described connecting pipe 104 is provided with valve 105, and described connecting pipe 104 is provided with connecting pipe termination 106 away from one end of described vacuum tank 103; Described vacuum tank 103 is also provided with air pump 107, and one end of described air pump 107 is communicated in the chamber of described vacuum tank 103, and the other end is communicated in air, for vacuumizing.
Described connecting pipe 104 is flexible pipe; Described connecting pipe 104, through the end to end sleeve pipe 108 of multistage, is connected by joint spider 109 between adjacent described sleeve pipe 108.
Adopt technique scheme, gas leak detection system of the present utility model, during use, region to be measured is inserted in connecting pipe termination 106, open the valve 105 on connecting pipe, air is entered in vacuum tank 103 detected by probe 101a again, even if thus connecting pipe termination 106 cannot be inserted into the position that air delivering pipeline may be revealed, so the negative-pressure sucking of vacuum tank 103 also as far as possible by ambient air inspiration, thus can avoid the situation that can not find Leakage Gas.By connecting pipe 104 is set to flexible pipe, and described connecting pipe 104 is through the end to end sleeve pipe 108 of multistage, connected by joint spider 109 between adjacent described sleeve pipe 108, then can multi-angle rotation between the end to end sleeve pipe 108 of multistage, thus convenient connecting pipe termination 106 to be stretched in difform area of space.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.