CN201000661Y

CN201000661Y - Unrecovered multi-level warning cable type linetype constant temperature fire detector

Info

Publication number: CN201000661Y
Application number: CNU2006201534670U
Authority: CN
Inventors: 张陈; 王文江
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-05
Filing date: 2006-12-05
Publication date: 2008-01-02
Anticipated expiration: 2016-12-05

Abstract

The utility model relates to a beyond retrieve type multiple-stage alarm cable type constant temperature fire detector, which consists of a junction box, a terminal box and a temperature sensing cable. The utility model is characterized in that the structure of the temperature sensing cable is that a temperature sensing insulated clad layer (2) and a conductor winding layer are all arranged outside two main conductors, after two same cabled yarns are twisted into strands, an air sizing flame retardant outer sheath layer (5) is arranged outside. The line type insulation is adopted to pack a main conductor, when the temperature changes, the resistance value changes. A signal decoder is adopted an intellectualized technology to process the change value synthetically. When the environmental temperature change reaches the setting constant temperature alarm value, the alarm signal is sent. The operating temperature range of the setting constant temperature is six classes of 60 degree centigrade, 70degree centigrade, 85degree centigrade, 105degree centigrade, 138 degree centigrade, 180 degree centigrade. The alarm of the detector is sensitive and accurate, the false alarm caused by the non-fire accidental factor is avoided, the anti-electromagnetic interference was strong, the product quality reliability was high, the cost was low, and the structure of the multiple-stage alarm temperature sensing cable is simple. The structure of the winding conductor is adopted, to make the external diameter little, the temperature sensing alarm sensitive and accurate, thus the utility model can monitor the environmental temperature in real time.

Description

The multistage warning cable linear of beyond retrievable constant temperature fire detector

Technical field

The utility model relates to the fire detector of fire-fighting domain, is applicable to the cable linear constant temperature fire detector of a plurality of temperature grades.

Background technology

At present,, in a lot of buildings and the particular place fire detector has been installed, has been comprised line type fire detector, the scene has been monitored in real time in order in time to grasp fire and fire preventing.Now the most linetype temperature-fixing fire detecting devices that use are to rise to when setting alarm temperature when scene temperature, the linetype temperature-fixing fire detecting device is promptly reported to the police, and can only finish the single-stage of constant temperature and report to the police, and the suitable environment temperature range is narrow, also be subject to signal and disturb, wrong report probability height.

Summary of the invention

The purpose of this utility model is to provide the multistage warning cable linear of a kind of beyond retrievable constant temperature fire detector (1), improves reliability, reduces rate of false alarm, broad application temperature range.

The multistage warning cable linear of beyond retrievable constant temperature fire detector, form by terminal box, termination box, temperature sensing cable, the structure that it is characterized in that temperature sensing cable: two main conductor line all have temperature-sensitive insulating coating, conductor lapping layer outward, two cable strands have fire-retardant external sheath layer outward to after becoming thigh.

The multistage warning cable linear of the design's beyond retrievable constant temperature fire detector, its outstanding properties is the reliability height.The temperature-sensitive wrapped with insulation leading body that it adopts, resistance change when temperature variation, terminal box adopts intellectualized technology that this changing value is carried out overall treatment, just send twice or twice above alerting signal when variation of ambient temperature reaches two or more temperature grade alarming values of setting, the constant temperature operating temperature range that can be provided with is: 60 ℃, 70 ℃, 85 ℃, 105 ℃, 138 ℃, 180 ℃ six grades.This detector alarm sensitivity, accurate, the false alarm of having avoided non-fire accidentalia to cause, and anti-electromagnetic interference (EMI) is strong, the product quality reliability height, and cost is low, and multistage warning temperature sensing cable is simple in structure, adopts wrapped conductor structure, makes its external diameter little.This product can not be reused.

Description of drawings

Fig. 1 is the synoptic diagram of the design's fire detector temperature sensing cable structure example 1;

Fig. 2 is the synoptic diagram of temperature sensing cable structure example 2;

Fig. 3 is the synoptic diagram of temperature sensing cable structure example 3;

Fig. 4 is the synoptic diagram of temperature sensing cable structure example 4;

Wiring schematic diagram when Fig. 5 is the temperature sensing cable use;

Embodiment

The multistage warning cable linear of beyond retrievable constant temperature fire detector, form by terminal box, termination box, temperature sensing cable, the structure that it is characterized in that temperature sensing cable: example 1, see Fig. 1, outside two leading bodies 1 temperature-sensitive insulating coating 2, conductor lapping layer 3 are arranged all, two same cable strands have the fire-retardant external sheath layer 5 of extrusion molding outward to after becoming thigh.

The structure of temperature sensing cable among the design: example 2, see Fig. 2, two leading bodies 1 are outer all a temperature-sensitive insulating coating 2, just wherein one follow 3, two cables strands of wrapped conductor layer to after, the fire-retardant external sheath layer 5 of extrusion molding is arranged outward.

The structure of temperature sensing cable among the design: example 3, see Fig. 3, two leading bodies 1 are outer all a temperature-sensitive insulating coating 2, just wherein one follow 3, two cables strands of wrapped conductor layer to after, belting layer 4 in twining has the fire-retardant external sheath layer 5 of extrusion molding outward.

The structure of temperature sensing cable among the design: example 4, see Fig. 4, temperature-sensitive

insulating coating

2,3, two cables strands of conductor lapping layer are all arranged to after becoming thigh outside two main conductor line 1, twine interior belting layer 4, the fire-retardant external sheath layer 5 of extrusion molding is arranged outward.

During use, see Fig. 5: with leading body 1, conductor lapping layer 3 two ends of the two or two multistage warning temperature sensing cables of above beyond retrievable link to each other with the connection terminal of terminal box 9 respectively, the connection terminal of termination box 10 links to each other.Terminal box 9 links to each other with fire alarm control unit by signal bus 8.

Claims

1, the multistage warning cable linear of beyond retrievable constant temperature fire detector, form by terminal box, termination box, temperature sensing cable, the structure that it is characterized in that temperature sensing cable: temperature-sensitive insulating coating (2), conductor lapping layer (3) are all arranged outside two leading bodies (1), two same cable strands have the fire-retardant external sheath layer (5) of extrusion molding outward to after becoming thigh.

2, the multistage warning cable linear of beyond retrievable according to claim 1 constant temperature fire detector, the structure that it is characterized in that temperature sensing cable: temperature-sensitive insulating coating (2) is all arranged outside two leading bodies (1), wherein one has conductor lapping layer (3), two cables strand to after, the fire-retardant external sheath layer (5) of extrusion molding is arranged outward.

3, the multistage warning cable linear of beyond retrievable according to claim 1 constant temperature fire detector, the structure that it is characterized in that temperature sensing cable: temperature-sensitive insulating coating (2) is all arranged outside two leading bodies (1), wherein one has conductor lapping layer (3), two cables strand to after, interior belting layer (4) is arranged, the fire-retardant external sheath layer (5) of extrusion molding is arranged outward.

4, the multistage warning cable linear of beyond retrievable according to claim 1 constant temperature fire detector, the structure that it is characterized in that temperature sensing cable: temperature-sensitive insulating coating (2), conductor lapping layer (3) are all arranged outside two main conductor line (1), two cable strands are to after becoming thigh, interior belting layer (4) is arranged, the fire-retardant external sheath layer (5) of extrusion molding is arranged outward.