CN205582182U - Combined type unrecoverable formula cable formula line type heat fire detector - Google Patents
Combined type unrecoverable formula cable formula line type heat fire detector Download PDFInfo
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- CN205582182U CN205582182U CN201620256778.3U CN201620256778U CN205582182U CN 205582182 U CN205582182 U CN 205582182U CN 201620256778 U CN201620256778 U CN 201620256778U CN 205582182 U CN205582182 U CN 205582182U
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Abstract
The utility model discloses a combined type unrecoverable formula cable formula line type heat fire detector, including temperature sensing part, signal processing unit, terminating resistance R1, R2, the temperature sensing parts are including parallel first, the 2nd spring wire who sets up and first, the 2nd metallic conductor, signal processing unit includes the operation device to and the alarm output device and the two sets of electric signal measurement device that link to each other with the operation device, first, the 2nd spring wire outsourcing easily melt strand to become behind the plastic layer integrative, first, the 2nd metallic conductor covers outward has NTC characteristic material layer, the NTC characteristic material layer laminating first, that the 2nd metallic conductor is outside, wherein a formation measurement circuit is connected with a spring wire, terminating resistance R1 and the 2nd spring wire to a set of electric signal measurement device, the 2nd measurement circuit of formation is connected with a metallic conductor, terminating resistance R2 and the 2nd metallic conductor to another electric signal measurement device of group. The utility model discloses rational in infrastructure, stability, the reliability is high.
Description
Technical field
This utility model belongs to fire detecting and alarm technical field in safety engineering discipline, is specifically related to a kind of fire detector.
Background technology
At present, the beyond-retrieve-type cable-type line-type heat fire detector of prior art be easily melted plastic layer by two spring steel wire outsourcings after stranded form.When being heated around temperature-sensitive cable, after temperature reaches certain melting point, easily melting plastic layer and be softened or melted, the torsion by spring steel wire destroys easily melting plastic layer, makes to contact between spring steel wire, is i.e. short-circuited, thus reaches the purpose reported to the police.But due to detector properly functioning after easily affected by damaged by rats or external mechanical force, make two spring steel wire short circuits send fire alarm, thus error starting extinguishing device.Leverage the reliability and stability of fire-fighting system.
Due to the existence of the problems referred to above, greatly limit the range of application of the beyond-retrieve-type cable-type line-type heat fire detector of prior art.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of beyond-retrieve-type cable-type line-type heat fire detector, has good stability, reliability.
Technical scheme: for solving above-mentioned technical problem, a kind of combined type beyond-retrieve-type cable-type line-type heat fire detector that this utility model provides, including temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2；
Described temperature sensing part includes parallel arrangement of first spring steel wire, the second spring steel wire, the first metallic conductor and the second metallic conductor；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices；
Described first, second spring steel wire outsourcing is twisted into one after easily melting plastic layer；
Being covered with NTC elastomeric material layer outside described first, second metallic conductor, the NTC elastomeric material laminating outside first, second metallic conductor closes；
One of which electric signal measurement device and the first spring steel wire, terminal resistance R1 and the second spring steel wire connect formation the first measurement loop；Another group electric signal measurement device and the first metallic conductor, terminal resistance R2 and the second metallic conductor connect formation the second measurement loop.
Preferably, described electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；
Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
As a kind of preferred version, in temperature sensing part, first, second spring steel wire of plastic layer is easily melted in parallel arrangement of outsourcing, and outer first, second metallic conductor being covered with NTC elastomeric material layer is parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the total cable of single temperature-sensitive.
As another kind of preferred version, after in described temperature sensing part, parallel arrangement of outsourcing is easily melted that the first and second spring steel wires of plastic layer are parallel and is close to or is equidistantly twisted into one, outer insulating layer coating forms the first cable；In described temperature sensing part parallel arrangement of first and second metallic conductors parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the second cable.It is further preferred that described first cable and the second cable parallel be close to or be equidistantly twisted into one after outer insulating layer coating form the total cable of single temperature-sensitive.
Preferably, often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
The another kind of combined type beyond-retrieve-type cable-type line-type heat fire detector that this utility model provides, including temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2；
Described temperature sensing part includes parallel arrangement of first spring steel wire, measures common port metallic conductor and the second metallic conductor；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices；
Plastic layer is easily melted in described first spring steel wire outsourcing, is covered with NTC elastomeric material layer outside described second metallic conductor, and the first spring steel wire, measurement common port metallic conductor and the second metallic conductor three core are twisted into one；
One of which electric signal measurement device and the first spring steel wire, terminal resistance R1 and measurement common port metallic conductor connect formation the first measurement loop；Another group electric signal measurement device is connected formation the second measurement loop with measuring common port metallic conductor, terminal resistance R2 and the second metallic conductor.
Preferably, described electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；
Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
As preferably, after in temperature sensing part, the first spring steel wire of plastic layer, the measuring common port metallic conductor and be covered with outward that the second metallic conductor of NTC elastomeric material layer is parallel and be close to or be equidistantly twisted into one of the most exposed or outsourcing semi-conducting material are easily melted in parallel arrangement of outsourcing, outer insulating layer coating forms the total cable of single temperature-sensitive.
Preferably, often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
Beneficial effect: the combined type beyond-retrieve-type cable-type line-type heat fire detector that this utility model provides, it is rational in infrastructure, sensitive practicality, substantially increases stability and the reliability of detector in fire-fighting system.
Accompanying drawing explanation
The structural representation of the combined type beyond-retrieve-type cable-type line-type heat fire detector that Fig. 1 provides for embodiment 1；
Fig. 2 is longitudinal sectional structure schematic diagram of temperature sensing part in embodiment 1；
Fig. 3 is the horizontal sectional structure schematic diagram of temperature sensing part in embodiment 1.
Detailed description of the invention
Embodiment 1: as it is shown in figure 1, a kind of combined type beyond-retrieve-type cable-type line-type heat fire detector that the present embodiment provides, including temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2.
Described temperature sensing part includes parallel arrangement of first spring steel wire the 1, second spring steel wire the 2, first metallic conductor 3 and the second metallic conductor 4；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices.
As in figure 2 it is shown, described first, second spring steel wire outsourcing is twisted into one after easily melting plastic layer 5.As shown in Figure 2 and Figure 3, being covered with NTC elastomeric material layer 6 outside described first, second metallic conductor, the NTC elastomeric material laminating outside first, second metallic conductor closes.
Wherein, described meltable plastic layer be reach certain temperature threshold after carry out the plastic material that melts.
Two groups of electric signal measurement devices are respectively first, second electric signal measurement device, and wherein the first electric signal measurement device and the first spring steel wire, terminal resistance R1 and the second spring steel wire connect formation the first measurement loop；Second electric signal measurement device and the first metallic conductor, terminal resistance R2 and the second metallic conductor connect formation the second measurement loop.
Wherein, described electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
In temperature sensing part, first, second spring steel wire of plastic layer is easily melted in parallel arrangement of outsourcing, and first, second metallic conductor that is covered with outward NTC elastomeric material layer is parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the total cable of single temperature-sensitive.
Often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
In the present embodiment, the head end of the first spring steel wire and the first electric signal measurement device connect, and end is connected with one end of terminal resistance R1, and the head end of described second spring steel wire and the first electric signal measurement device connect, and end is connected with the other end of terminal resistance R1；The head end of described first metallic conductor and the second electric signal measurement device connect, and end is connected with one end of terminal resistance R2, and the head end of described second metallic conductor and the second electric signal measurement device connect, and end is connected with the other end of terminal resistance R2.
Embodiment 2: essentially identical with embodiment 1 structure, something in common is not repeated, except that:
After in described temperature sensing part, parallel arrangement of outsourcing is easily melted that the first and second spring steel wires of plastic layer are parallel and is close to or is equidistantly twisted into one, outer insulating layer coating forms the first cable；In described temperature sensing part parallel arrangement of first and second metallic conductors parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the second cable.
Described first cable and the second cable parallel be close to or be equidistantly twisted into one after outer insulating layer coating form the total cable of single temperature-sensitive.
Embodiment 3: a kind of combined type beyond-retrieve-type cable-type line-type heat fire detector that the present embodiment provides, including temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2；
Described temperature sensing part includes parallel arrangement of first spring steel wire, measures common port metallic conductor and the second metallic conductor；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices；
Plastic layer is easily melted in described first spring steel wire outsourcing, is covered with NTC elastomeric material layer outside described second metallic conductor, and the first spring steel wire, measurement common port metallic conductor and the second metallic conductor three core are twisted into one；
One of which electric signal measurement device and the first spring steel wire, terminal resistance R1 and measurement common port metallic conductor connect formation the first measurement loop；Another group electric signal measurement device is connected formation the second measurement loop with measuring common port metallic conductor, terminal resistance R2 and the second metallic conductor.
Wherein, electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
Often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
After in temperature sensing part, the first spring steel wire of plastic layer, the measuring common port metallic conductor and be covered with outward that the second metallic conductor of NTC elastomeric material layer is parallel and be close to or be equidistantly twisted into one of outsourcing semi-conducting material are easily melted in parallel arrangement of outsourcing, outer insulating layer coating forms the total cable of single temperature-sensitive.
In the present embodiment, the head end of the first spring steel wire and the first electric signal measurement device connect, and end is connected with one end of terminal resistance R1；The head end of described measurement common port metallic conductor and first, second electric signal measurement device connect, and end is connected with the other end of terminal resistance R1 and one end of terminal resistance R2；The head end of described second metallic conductor and the second electric signal measurement device connect, and end is connected with the other end of terminal resistance R2.
Embodiment 4: essentially identical with embodiment 3 structure, something in common is not repeated, except that:
In temperature sensing part parallel arrangement of outsourcing easily melt the first spring steel wire of plastic layer, the most exposed measure common port metallic conductor and be covered with outward that the second metallic conductor of NTC elastomeric material layer is parallel and be close to or be equidistantly twisted into one after, outer insulating layer coating forms the total cable of single temperature-sensitive.
As a example by embodiment 1, illustrate operation principle of the present utility model:
In the present embodiment 1, when carrying out electric signal measurement, wherein two outsourcings are easily melted the circuit that plastic layer is connected with terminal resistance R1 and are carried out signals collecting by the first electric signal measurement device, and the circuit that the metallic conductor of two outsourcing NTC elastomeric material is connected by the second electric signal measurement device with terminal resistance R2 carries out signals collecting.And send the two groups of data values gathered to data processing equipment, carry out properly functioning, the judgement of fire, fault according to calculation process result.When having fire alarm or fault alarm occurs, arithmetic processing apparatus starts alarm output device.Specific works principle is as follows:
(1): after normal power supply, two outsourcings are easily melted the circuit that plastic layer is connected with terminal resistance R1 and are carried out signals collecting by the first electric signal measurement device, the circuit that the material of two metallic conductor outsourcing NTC characteristics is connected by the second electric signal measurement device with terminal resistance R2 carries out signals collecting, and its resistance value gathered respectively is respectively R1 and R2 in theory.
(2): when cable linear temperature sensing parts short-circuit between conductors, open circuit, the signal of telecommunication that its two groups of electric signal measurement devices are gathered will change.
(1) when the first electric signal measurement device circuit is short-circuited, its termination resistance value gathered is 0, judge whether the second electric signal measurement device changes simultaneously, during as being not changed in relative to data before or be not reaching to change threshold, be then judged to fault；When the first electric signal measurement device circuit generation open circuit, its termination resistance value gathered is close+∞, then break down.
(2) when the second electric signal measurement device circuit is short-circuited, its termination resistance value gathered is 0；When the second electric signal measurement device circuit generation open circuit, its termination resistance value gathered is close+∞.
(3) data that: around cable linear temperature sensing parts during breaking out of fire, these two groups of electric signal measurement devices record will change.When temperature reaches certain melting point T (DW1) or certain temperature threshold, easily melt plastic layer to be softened or melted, torsion by spring steel wire destroys easily melting plastic layer, make to contact between spring steel wire, i.e. being short-circuited, at this moment the termination resistance value of the first electric signal measurement device collection is theoretically 0；Simultaneously, the measurement loop that the metallic conductor of two outsourcing NTC (negative temperature coefficient material) elastomeric material is connected by the second electric signal measurement device with terminal resistance R2 carries out signals collecting, obtain the NTC elastomeric material between now two metallic conductors vary with temperature and the resistance that reduces in parallel with R2 after corresponding parallel resistance value R2, this parallel resistance value R2 is significantly reduced (these changes can use and preset the mode such as comparison of change threshold and judge) relative to R2.When both meet simultaneously, can determine whether now have fire to occur, alarm output device i.e. sends fire alarm signal.
What this utility model was protected is the structure of provided combined type beyond-retrieve-type cable-type line-type heat fire detector.More than implementing row and this utility model does not constitute restriction, relevant staff is in the range of without departing from this utility model technological thought, and carried out various changes and modifications, and all falls within protection domain of the present utility model.
Claims (10)
1. a combined type beyond-retrieve-type cable-type line-type heat fire detector, it is characterised in that: include temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2；
Described temperature sensing part includes parallel arrangement of first spring steel wire, the second spring steel wire, the first metallic conductor and the second metallic conductor；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices；
Described first, second spring steel wire outsourcing is twisted into one after easily melting plastic layer；
Being covered with NTC elastomeric material layer outside described first, second metallic conductor, the NTC elastomeric material laminating outside first, second metallic conductor closes；
One of which electric signal measurement device and the first spring steel wire, terminal resistance R1 and the second spring steel wire connect formation the first measurement loop；Another group electric signal measurement device and the first metallic conductor, terminal resistance R2 and the second metallic conductor connect formation the second measurement loop.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 1, it is characterised in that:
Described electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；
Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 1, it is characterized in that: in temperature sensing part, first, second spring steel wire of plastic layer is easily melted in parallel arrangement of outsourcing, and outer first, second metallic conductor being covered with NTC elastomeric material layer is parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the total cable of single temperature-sensitive.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 1, it is characterized in that: after parallel arrangement of outsourcing is easily melted that the first and second spring steel wires of plastic layer are parallel and is close to or is equidistantly twisted into one in described temperature sensing part, outer insulating layer coating forms the first cable；In described temperature sensing part parallel arrangement of first and second metallic conductors parallel be close to or be equidistantly twisted into one after, outer insulating layer coating forms the second cable.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 4, it is characterised in that: described first cable and the second cable parallel be close to or be equidistantly twisted into one after outer insulating layer coating form the total cable of single temperature-sensitive.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 1, it is characterised in that: often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
7. a combined type beyond-retrieve-type cable-type line-type heat fire detector, it is characterised in that: include temperature sensing part, signal processing unit, terminal resistance R1 and terminal resistance R2；
Described temperature sensing part includes parallel arrangement of first spring steel wire, measures common port metallic conductor and the second metallic conductor；Described signal processing unit includes arithmetic processing apparatus, and the alarm output device that is connected with arithmetic processing apparatus and two groups of electric signal measurement devices；
Plastic layer is easily melted in described first spring steel wire outsourcing, is covered with NTC elastomeric material layer outside described second metallic conductor, and the first spring steel wire, measurement common port metallic conductor and the second metallic conductor three core are twisted into one；
One of which electric signal measurement device and the first spring steel wire, terminal resistance R1 and measurement common port metallic conductor connect formation the first measurement loop；Another group electric signal measurement device is connected formation the second measurement loop with measuring common port metallic conductor, terminal resistance R2 and the second metallic conductor.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 7, it is characterised in that:
Described electric signal measurement device is to be connected with temperature sensing part, it is possible to temperature sensing part carries out the electric signal measurement device of signal parameter collection in real time；
Described arithmetic processing apparatus, the comparative result for the signal parameter according to electric signal measurement device collection Yu predetermined threshold value carries out the judgement of detector duty and carries out the arithmetic processing apparatus of fire alarm and fault alarm.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 7, it is characterized in that: after the first spring steel wire of plastic layer, the measuring common port metallic conductor and be covered with outward that the second metallic conductor of NTC elastomeric material layer is parallel and be close to or be equidistantly twisted into one of the most exposed or outsourcing semi-conducting material are easily melted in parallel arrangement of outsourcing in temperature sensing part, outer insulating layer coating forms the total cable of single temperature-sensitive.
Combined type beyond-retrieve-type cable-type line-type heat fire detector the most according to claim 7, it is characterised in that: often group electric signal measurement device includes front end circuit, filter circuit, amplifying circuit and A/D convertor circuit；The input of described front end circuit is connected with temperature sensing part, is sequentially connected with filter circuit, amplifying circuit and A/D convertor circuit after front end circuit, and the output of described A/D convertor circuit is connected with arithmetic processing apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620256778.3U CN205582182U (en) | 2016-03-30 | 2016-03-30 | Combined type unrecoverable formula cable formula line type heat fire detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620256778.3U CN205582182U (en) | 2016-03-30 | 2016-03-30 | Combined type unrecoverable formula cable formula line type heat fire detector |
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| CN205582182U true CN205582182U (en) | 2016-09-14 |
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| CN201620256778.3U Active CN205582182U (en) | 2016-03-30 | 2016-03-30 | Combined type unrecoverable formula cable formula line type heat fire detector |
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Denomination of utility model: Combined type unrecoverable formula cable formula line type heat fire detector Effective date of registration: 20190320 Granted publication date: 20160914 Pledgee: Bank of China Limited by Share Ltd Nanjing Liuhe sub branch Pledgor: JIANGSU ZHONGSHI ELECTRONICS CO., LTD. Registration number: 2019320000143 |
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Date of cancellation: 20191212 Granted publication date: 20160914 Pledgee: Bank of China Limited by Share Ltd Nanjing Liuhe sub branch Pledgor: JIANGSU ZHONGSHI ELECTRONICS CO., LTD. Registration number: 2019320000143 |
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