CN218885198U - Linear fire detector based on luminous temperature-sensing cable with transparent temperature-variable outer sheath - Google Patents
Linear fire detector based on luminous temperature-sensing cable with transparent temperature-variable outer sheath Download PDFInfo
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- CN218885198U CN218885198U CN202223413048.4U CN202223413048U CN218885198U CN 218885198 U CN218885198 U CN 218885198U CN 202223413048 U CN202223413048 U CN 202223413048U CN 218885198 U CN218885198 U CN 218885198U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides a linear fire detector based on a luminous temperature-sensitive cable with a transparent temperature-variable outer sheath, which comprises a luminous temperature-sensitive cable, and a signal processing unit and a relay unit which are respectively connected with the two ends of the luminous temperature-sensitive cable; the signal processing unit comprises a detection device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device and the signal output display device; the luminous temperature-sensing cable comprises at least two thermosensitive wire cores arranged in parallel and a transparent temperature-changing outer sheath wrapped outside the thermosensitive wire cores; the transparent temperature-variable outer sheath is arranged outside the existing temperature-sensing cable, when the heating temperature of a certain section of the luminous temperature-sensing cable rises, the transparent temperature-variable outer sheath can emit different colors according to the heating temperature, and the heated section and the non-heated section have obviously different colors and brightness differences, so that the position of the luminous temperature-sensing cable where the high temperature is located is prompted, once a fire disaster occurs, the fire disaster occurrence position can be accurately and timely searched, and the fire alarm processing time is greatly shortened.
Description
Technical Field
The utility model belongs to the technical field of the fire detection, a line type fire detector based on take transparent temperature to become luminous temperature sensing cable of oversheath is related to.
Background
The conventional line type fire detector, as shown in fig. 1: mainly comprises a signal processing unit 61, a temperature sensing cable 62 and a terminal resistor 6R; the temperature sensing cable 62 has one end connected to the signal processing unit 61 and the other end connected to the terminating resistor 6R, and the signal processing unit 61 is further connected to a power supply line 63. When a certain section of the temperature sensing cable 62 is heated and heated, the resistance value of the temperature sensing cable 62 changes, and the signal is transmitted to the signal processing unit 61, and the signal processing unit 61 comprehensively judges the signal and then sends out an alarm signal.
The temperature sensing cables 62 of the line-type fire detector are generally arranged in a narrow and narrow channel or a pipe gallery, the laying length of each temperature sensing cable 62 is generally 200-500 meters, even 1000 meters, and the signal processing unit 61 and the temperature sensing cables 62 are often arranged in different areas, because the scene where the temperature sensing cables 62 are located is dark, if a certain local part of the temperature sensing cables 62 is subjected to high temperature, the line-type fire detector alarms, and the heated part in the temperature sensing cables 62 cannot be seen by naked eyes and cannot find the point position of the heated part, so that the fire processing time is greatly delayed.
Disclosure of Invention
In order to solve the above problems, the utility model provides a linear fire detector based on a luminous temperature-sensitive cable with a transparent temperature-variable outer sheath, which can accurately find the fire point position in time once a fire occurs, comprising a luminous temperature-sensitive cable, and a signal processing unit and a relay unit which are respectively connected with the two ends of the luminous temperature-sensitive cable; the signal processing unit comprises a detection device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device and the signal output display device; the luminous temperature-sensing cable comprises at least two thermosensitive wire cores arranged in parallel and a transparent temperature-changing outer sheath wrapped outside the thermosensitive wire cores; a terminal resistor R is arranged in the relay unit; the terminal resistor R is connected with the at least two thermosensitive wire cores and the detection device to form a detection loop.
Preferably, the signal processing unit further comprises a light source device, and the control device is electrically connected with the light source device; the luminous temperature-sensing cable also comprises a luminous optical fiber which is twisted with or arranged in parallel with at least two thermosensitive wire cores arranged in parallel; one end of the luminous optical fiber is connected with the light source device, and the other end of the luminous optical fiber is connected with the relay unit.
Preferably, the side-by-side arrangement is a twisted structure, a parallel structure or a coaxial structure.
Preferably, the transparent temperature-variable outer sheath is made of a thermochromic organic material.
Preferably, the transparent temperature-variable outer sheath is made of a reversible thermochromic material.
Preferably, the control device controls the light source device to emit green light, yellow light and red light, respectively.
Preferably, the detection circuit is a recoverable or non-recoverable detection circuit.
Preferably, the detection circuit is an analog or switching detection circuit.
Preferably, the detection circuit is a series thermosensitive detection circuit or a parallel thermosensitive detection circuit.
The utility model discloses an outer transparent temperature change oversheath of setting up in current temperature sensing cable, when certain section of luminous temperature sensing cable is heated the temperature and risees, different colours can be sent according to the temperature height of being heated to transparent temperature change oversheath, and apparent different colour and the luminance difference appear in heated section and non-heated section, the position at suggestion luminous temperature sensing cable received the high temperature place, in case the conflagration takes place can accurately in time seek the conflagration and take place the position, has shortened fire alarm processing time widely.
Drawings
FIG. 1 is a schematic view of a prior art line type fire detector;
FIG. 2 is a schematic structural view of a line type fire detector according to an embodiment;
FIG. 3 is a schematic structural view of the temperature sensing cable with the transparent temperature-varying outer sheath of FIG. 2;
FIG. 4 is a schematic view showing the construction of another fire detector according to the second embodiment;
fig. 5 is a schematic structural view of the temperature sensing cable with the transparent temperature-varying outer sheath in fig. 4.
Detailed Description
The present invention provides a linear fire detector based on a luminous and temperature-sensitive cable with a transparent temperature-varying outer sheath, which is described in detail below with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 2 and 3, the schematic structural diagram of a line-type fire detector based on a light-emitting and temperature-sensing cable with a transparent temperature-varying outer sheath provided by the invention comprises a signal processing unit 1, a light-emitting and temperature-sensing cable 2 and a relay unit 3.
The signal processing unit 1 comprises a detection device 11, a signal output display device 13, a control device 14 and a power supply 15, wherein the control device 14 is electrically connected with the detection device 11 and the signal output display device 13; as shown in fig. 3, the light-emitting temperature-sensing cable 2 includes at least two parallel thermal-sensing wire cores 21 and a transparent temperature-variable outer sheath 23 wrapped on the outer layers of the thermal-sensing wire cores, and the parallel arrangement is parallel, twisted or coaxial; the relay unit 3 is internally provided with a terminal resistor R, and the terminal resistor R, the at least two thermosensitive wire cores 21 arranged in parallel and the detecting device 11 form a detecting loop.
The transparent temperature-variable outer sheath is made of thermochromic organic materials, such as spiropyrans, fluorescent derivatives, polythiophene, liquid crystal materials and the like, and has wide color-variable temperature (-100 ℃), and rich color change; or reversible thermochromic materials such as thermosensitive dye, color-changing enamel, and anti-counterfeiting material.
The working principle of the linear fire detector based on the luminous and temperature-sensitive cable with the transparent temperature-variable outer sheath provided by the embodiment is as follows:
when the detector works normally, the detecting device 11 continuously collects the resistance value data of the thermosensitive wire core 21, when the resistance value of the thermosensitive wire core 21 is detected to be within a normal range, the signal is transmitted to the control device 14, and after the control device 14 judges, the control signal output display device 13 outputs that the detector works normally and has no fire. When the thermal sensitive wire core 21 is short-circuited or broken, the detecting device 11 detects that the resistance value is in a fault range, transmits a signal to the control device 14, and after the control device 14 judges that the resistance value is in the fault range, the control signal output display device 13 outputs a signal that the detector is in fault and needs to be maintained.
When the heating temperature of one section of the luminous temperature sensing cable 2 rises, the detection device 11 detects that the resistance value reaches the fire alarm range, the signal is transmitted to the control device 14, and the control device 14 controls the signal output display device 13 to output a fire signal after judgment; meanwhile, when the heating temperature of the section of the light-emitting temperature-sensing cable 2 rises, the heated section of the transparent temperature-variable outer sheath 23 is changed from transparent to other colors, such as blue, the transparent temperature-variable outer sheath 23 can emit different colors due to the heating temperature, and the obviously different colors and brightness differences appear in the heated section and the non-heated section, so that the part of the light-emitting temperature-sensing cable 2, which is heated by high temperature, is prompted, and the danger level of fire at the part which is heated by high temperature is prompted.
Carry out two
As shown in fig. 4 and 5, a schematic structural diagram of another line-type fire detector based on a luminescent and temperature-sensitive cable with a transparent temperature-variable outer sheath provided by the present invention includes a signal processing unit 1 ' and a luminescent and temperature-sensitive cable 2 ', and a relay unit 3 '.
Said signal processing unit 1 ' comprises detection means 11, light source means 12, signal output display means 13, control means 14 ', and power supply 15, said control means 14 ' being electrically connected to detection means 11, light source means 12, and signal output display means 13; as shown in fig. 5, the light-emitting temperature-sensitive cable 2' includes a light-emitting optical fiber 22 and at least two temperature-sensitive wire cores 21 arranged in parallel or in a twisted manner, and a transparent temperature-variable outer sheath 23 wrapped around the light-emitting optical fiber 22 and the at least two temperature-sensitive wire cores 21, wherein the parallel arrangement manner is parallel, twisted or coaxial; a termination resistor R is arranged inside the relay unit 3', and the termination resistor R, the at least two thermosensitive wire cores 21 arranged in parallel and the detection device 11 form a detection loop; one end of the light-emitting optical fiber 22 is connected to the light source device 12, and the other end is connected to the relay unit 3'.
The working principle of the linear fire detector based on the luminous and temperature-sensitive cable with the transparent temperature-variable outer sheath provided by the embodiment is as follows:
during normal operation, the detection device 11 continuously collects resistance value data of the thermosensitive core 21, and when it is detected that the resistance value of the thermosensitive core 21 is within a normal range, signals are transmitted to the control device 14 ', the control device 14' performs determination, then the light source device 12 is controlled to emit green light and transmit the luminescent optical fiber 22, and meanwhile the signal output display device 13 is controlled to output normal signals; thus, the light emitting fiber 22 emits green light, indicating that the line type fire detector is operating normally and there is no fire. When the thermosensitive wire core 21 is short-circuited or open-circuited, the detection device 11 detects that the resistance value is within the fault range, transmits a signal to the control device 14 ', and after the control device 14' performs judgment, controls the light source device 12 to emit yellow light and transmits the light-emitting optical fiber 22, and controls the signal output display device 13 to output a fault signal; thus, the light-emitting optical fiber 22 emits yellow light, which indicates that the light-emitting temperature-sensitive cable 2' of the line type fire detector is out of order and needs to be maintained.
When the heated temperature of a section of the light-emitting temperature-sensing cable rises, the detection device 11 detects that the resistance value reaches the fire alarm range, transmits a signal to the control device 14 ', and after the control device 14' performs judgment, controls the light source device 12 to emit red light and transmits the light-emitting optical fiber 22, and controls the signal output display device 13 to output a fire alarm signal. Thus, the light emitting fiber 22 emits a green light, indicating that a fire has occurred or is about to occur in the detection area; meanwhile, when the heating temperature of the section of the light-emitting temperature-sensitive cable 2' rises, the heated section of the transparent temperature-variable outer sheath 23 is changed from transparent to other colors, for example, blue, the transparent temperature-variable outer sheath 23 can emit different colors due to the heating temperature, and the obviously different colors and brightness differences appear in the heated section and the non-heated section, so that the position where the light-emitting temperature-sensitive cable 2 is subjected to high temperature is prompted, and the danger level where the fire disaster of the high-temperature-subjected position is prompted.
The detection circuit in the invention is a recoverable detection circuit or a non-recoverable detection circuit.
The detection loop is an analog quantity or switching value detection loop.
The detection loop is a detection loop with series thermosensitive characteristics or parallel thermosensitive characteristics.
The utility model discloses a main points are through becoming the oversheath at a transparent temperature of current temperature sensing cable peripheral hardware, when certain section of luminous temperature sensing cable heated the temperature and risees, transparent temperature becomes the oversheath and can send different colours according to the temperature height of being heated, obviously different colour and luminance difference appear in heated section and non-heated section, the luminous temperature sensing cable of suggestion receives the position at high temperature place, the dangerous height that should receive high temperature position conflagration place is reminded simultaneously, the setting has been solved in long and narrow dark channel or piping lane central line type fire detector in case the conflagration condition, the conflagration emergence position can't be accurately in time seeked, the fire alarm processing time problem has been postponed widely. The claims describe the scope of the invention, but any variations that do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (9)
1. A line type fire detector based on a luminous temperature-sensitive cable with a transparent temperature-variable outer sheath is characterized by comprising a luminous temperature-sensitive cable, and a signal processing unit and a relay unit which are respectively connected with the two ends of the luminous temperature-sensitive cable; the signal processing unit comprises a detection device, a signal output display device, a control device and a power supply, wherein the control device is electrically connected with the detection device and the signal output display device; the luminous temperature-sensing cable comprises at least two thermosensitive wire cores arranged in parallel and a transparent temperature-changing outer sheath wrapped outside the thermosensitive wire cores; a terminal resistor R is arranged in the relay unit; the terminal resistor R is connected with the at least two thermosensitive wire cores and the detection device to form a detection loop.
2. A fire detector as claimed in claim 1, wherein the signal processing unit further comprises light source means, the control means being electrically connected to the light source means; the luminous temperature-sensing cable also comprises a luminous optical fiber which is twisted with at least two thermosensitive wire cores arranged in parallel or arranged in parallel; one end of the luminous optical fiber is connected with the light source device, and the other end of the luminous optical fiber is connected with the relay unit.
3. A fire detector as claimed in claim 1 or 2, wherein the parallel arrangement is a twisted, parallel or coaxial arrangement.
4. The fire detector of claim 3, wherein the transparent temperature-sensitive outer jacket is made of a thermochromic organic material.
5. A fire detector as claimed in claim 3, characterised in that the transparent temperature-variable outer sheath is made of a reversible thermochromic material.
6. A fire detector as claimed in claim 2, characterised in that the control means controls the light source means to emit green, yellow and red light respectively.
7. A fire detector as claimed in claim 3, characterised in that the detection circuit is a recoverable or non-recoverable detection circuit.
8. A fire detector as claimed in claim 3, characterised in that the detection circuit is an analogue or switching detection circuit.
9. A fire detector as claimed in claim 3, characterised in that the detection circuit is a series or parallel thermal sensing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413048.4U CN218885198U (en) | 2022-12-20 | 2022-12-20 | Linear fire detector based on luminous temperature-sensing cable with transparent temperature-variable outer sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223413048.4U CN218885198U (en) | 2022-12-20 | 2022-12-20 | Linear fire detector based on luminous temperature-sensing cable with transparent temperature-variable outer sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218885198U true CN218885198U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223413048.4U Active CN218885198U (en) | 2022-12-20 | 2022-12-20 | Linear fire detector based on luminous temperature-sensing cable with transparent temperature-variable outer sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218885198U (en) |
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2022
- 2022-12-20 CN CN202223413048.4U patent/CN218885198U/en active Active
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