CN201251837Y

CN201251837Y - Combustible-gas alarm device

Info

Publication number: CN201251837Y
Application number: CNU2008200155159U
Authority: CN
Inventors: 王志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-10
Filing date: 2008-09-10
Publication date: 2009-06-03
Anticipated expiration: 2018-09-10

Abstract

The utility model provides a combustible-gas alarm device, mainly comprising a detector 1 and a controller R signal alarm P. the detector 1 and the controller R signal alarm P are connected by a lead. The alarm device is characterized in that: the detector 1 is embedded in a detection connector 2; the detection connector 2 is attached to the middle of a gas supply vale V1 of the main pipe and an equipment valve V2 by a detection valve V3 and a T-cock 4, so as to realize alarm against the detected leakage of the combustible gas in the gas supply valve when the equipment shuts down. The combustible-gas alarm device provided in the utility model has the advantages of capability of realizing the alarm against the detected leakage of the combustible gas in the gas supply valve when the equipment shuts down, quick alarm response, long service life, and guaranteed use security of gas.

Description

Flammable gas alarm device

Technical field

The utility model relates to flammable gas alarm device.

Background technology

The existing flammable gas alarm kind in market is a lot of at present, and its detection method all is the airborne combustable gas concentration of monitoring.Inflammable gas is a kind of flammable explosive gas, and lta can spread rapidly when leaking as generation everywhere, causes person poisoning, burns and explodes.When airborne concentration reaches 25%, can cause human body anoxia and cause nervous system damage, can show respiratory paralysis, stupor even death when serious.

Summary of the invention

The purpose of this utility model is to provide a kind of warning device that leaks in the inflammable gas source of the gas valve that detects when equipment is stopped transport.

The utility model provides a kind of flammable gas alarm device, mainly comprise detecting device 1 and controller R signal alarm P, detecting device 1 is connected with lead with controller R signal alarm P, it is characterized in that: detecting device 1 is embedded in and detects 2 li of connectors, and valve V3 and threeway 4 insert between the source of the gas valve V1 and equipment valve V2 of trunk lines after testing to detect connector 2.When stopping transport, equipment detects the warning of leaking in the inflammable gas source of the gas valve to be implemented in.

The flammable gas alarm device that the utility model provides, it detects a plurality of hole 2-1 that can have exhaust to use on the connector 2, impurity stockpiles the sensitivity that reduces detecting device 1 at detecting device 1 in the inflammable gas to reduce, and even " it is downright bad to poison ", avoid directly entering atmosphere simultaneously, reduce the concentration of inflammable gas in the pipe, thereby reduce the sensitivity that detects.

The flammable gas alarm device that the utility model provides, it detects valve V3 and source of the gas valve V1 and equipment valve V2 can be in manual or electronic ball valve, variable valve, T-valve and the butterfly valve one or more.

The flammable gas alarm device that the utility model provides, it detects valve V3 and source of the gas valve V1 and equipment valve V2 can linkage, detects valve V3 when opening with assurance source of the gas valve V1 and equipment valve V2 and closes, and detects valve V3 when source of the gas valve V1 and equipment valve V2 close and opens.

The flammable gas alarm device that the utility model provides, it detects valve V3, source of the gas valve V1 and equipment valve V2 can be a solenoid valve, and linkage can be electrical control.

The flammable gas alarm device that the utility model provides, the linkage of its electrical control can comprise power switch K, two-position switch S, time relay J and controller R; Controller R meets the contact a of power switch K, time relay J meets the contact d of two-position switch S, signal alarm P device 1 (as the normally opened contact R-1 of controller R) after testing meets the contact d of two-position switch S, source of the gas valve V1 meets the contact c of two-position switch S, two-position switch S meets the contact a of power switch K, equipment valve V2 meets the contact a of power switch K through the normally closed contact J-2 of time relay J, detect valve V3 and meet the contact a of power switch K, controller R through the normally opened contact J-1 of time relay J, time relay J, signal alarm P, detect valve V3, the other end of source of the gas valve V1 and equipment valve V2 all meets the contact b of power switch K.

The flammable gas alarm device that the utility model provides, its advantage is: the equipment that is implemented in detects the warning of leaking in the inflammable gas source of the gas valve when stopping transport, alarm response is exceedingly fast, and long service life guarantees that combustion gas is safe in utilization.

Description of drawings

Fig. 1 is the structural representation of flammable gas alarm device;

Fig. 2 is the circuit controling drawing of flammable gas alarm device.

Embodiment

Embodiment 1

Flammable gas alarm device, its structure as shown in Figure 1, comprise detecting device 1 and controller R signal alarm P, detecting device 1 is connected with lead with controller R signal alarm P, detecting device 1 is embedded in and detects 2 li of connectors, and valve V3 and threeway 4 insert between the source of the gas valve V1 and equipment valve V2 of trunk lines after testing to detect connector 2; Detect connector 2 usefulness screw threads and be connected with detection valve V3, detecting on the connector 2 has a plurality of exhausts hole 2-1; Detecting device 1 is equivalent to reflect the rheostat of combustable gas concentration, reduces along with the rising of concentration, and resistance is zero during to setting value; Detecting valve V3 and source of the gas valve V1 and equipment valve V2 all is solenoid valve, all by electric-linked control device control.

Electric-linked control device, its circuit comprise power switch K, two-position switch S, time relay J and controller R as shown in Figure 2; Controller R meets the contact a of power switch K, time relay J meets the contact d of two-position switch S, controller R signal alarm P---hummer device 1 (as the normally opened contact R-1 of display controller R) after testing meets the contact d of two-position switch S, source of the gas valve V1 meets the contact c of two-position switch S, two-position switch S meets the contact a of power switch K, equipment valve V2 meets the contact a of power switch K through the normally closed contact J-2 of time relay J, detect valve V3 and meet the contact a of power switch K, controller R through the normally opened contact J-1 of time relay J, time relay J, signal alarm P, detect valve V3, the other end of source of the gas valve V1 and equipment valve V2 all meets the contact b of power switch K.

When using inflammable gas equipment, the energized K switch, two-position switch S places the c position, source of the gas valve V1 and equipment valve V2 open, time relay J, detection valve V3 and detecting device 1 (being the normally opened contact R-1 of controller R) are in off-position, controller R is in running order, but because detection valve V3 and detecting device 1 (being the normally opened contact R-1 of controller R) are in off-position, controller R is shown as zero.

When stopping using inflammable gas equipment, power switch K still connects, two-position switch S places the d position, controller R is in running order, source of the gas valve V1 outage is closed, time relay J starts, after time-delay, equipment valve V2 closes, and detects valve V3 and opens, and detecting device 1 (or claims sensor, probe) is in the inflammable gas of 2 li of acquisition testing connectors, the size of this concentration is converted into electric signal, be sent to controller R (generally being installed in the duty room of Attended mode) by connecting lead, controller R is converted into digital signal with electric signal, shows its concentration value on LCD.

When detecting device 1 (being the normally opened contact R-1 of controller R) detects airborne combustable gas concentration value and reaches setting value, the normally opened contact R-1 closure of controller R, connection signal alarm P, signal alarm P---the hummer alerting signal of sounding.Also can start locking system simultaneously, close the make-up valve of source of the gas, guarantee that combustion gas is safe in utilization.

Claims

1, flammable gas alarm device, mainly comprise detecting device (1) and signal alarm (P), detecting device (1) is connected with lead with signal alarm (P), it is characterized in that: detecting device (1) is embedded in and detects connector (2) lining, detects connector (2) after testing between the source of the gas valve (V1) and equipment valve (V2) of valve (V3) and threeway (4) access trunk line.

2, according to the described flammable gas alarm device of claim 1, it is characterized in that: have exhaust to use hole (2-1) on the described detection connector (2).

3, according to the described flammable gas alarm device of claim 1, it is characterized in that: described detection valve (V3) has linkage with source of the gas valve (V1) and equipment valve (V2).

4, according to the described flammable gas alarm device of claim 2, it is characterized in that: described detection valve (V3) has linkage with source of the gas valve (V1) and equipment valve (V2).

5, according to claim 3 or 4 described flammable gas alarm devices, it is characterized in that: described detection valve (V3) is one or more in manual or electronic ball valve, variable valve, T-valve and the butterfly valve.

6, according to claim 3 or 4 described flammable gas alarm devices, it is characterized in that: described detection valve (V3), source of the gas valve (V1) and equipment valve (V2) are solenoid valves, and linkage is electrical control.

7, according to the described flammable gas alarm device of claim 6, it is characterized in that: the linkage of described electrical control comprises power switch (K), two-position switch (S), the time relay (J) and controller (R); Controller (R) connects the contact (a) of power switch (K), the time relay (J) connects the contact (d) of two-position switch (S), signal alarm (P) is device (1) after testing, be the normally opened contact R-1 of controller (R), connect the contact (d) of two-position switch (S), source of the gas valve (V1) connects the contact (c) of two-position switch (S), two-position switch (S) connects the contact (a) of power switch (K), equipment valve (V2) connects the contact (a) of power switch (K) through the normally closed contact (J-2) of the time relay (J), detect valve (V3) and connect the contact (a) of power switch (K), controller (R) through the normally opened contact (J-1) of the time relay (J), the time relay (J), signal alarm (P), detect valve (V3), the other end of source of the gas valve (V1) and equipment valve (V2) all connects the contact (b) of power switch (K).

8, according to the described flammable gas alarm device of claim 7, it is characterized in that: described signal alarm (P) is one or more in hummer, electric bell and the signal lamp.