CN-224216196-U - Device for testing temperature-sensing cable

CN224216196UCN 224216196 UCN224216196 UCN 224216196UCN-224216196-U

Abstract

The utility model relates to the technical field of cable overhauling devices and discloses a device for testing a temperature-sensing cable, which comprises a box body component, a temperature-sensing cable and a temperature-sensing cable, wherein the box body component is internally provided with a hollow structure, a first surface and a second surface of the box body component are provided with holes, the first surface and the second surface are two surfaces of the box body component which are oppositely arranged, and the hollow structure and the two holes form a containing cavity for containing the temperature-sensing cable; the temperature control component is arranged in the box body and is electrically connected with the heating component, the temperature control component is used for acquiring the temperature in the accommodating cavity, and the temperature control component is also used for controlling the heating temperature of the heating component. The device can reduce the requirement of test manpower, improve the working efficiency of test personnel, can be reused in the subsequent nuclear power units, reduce the loss of materials, and can be used for debugging the temperature sensing cable monomer of the fire alarm system of the nuclear power plant, and can also be used for debugging other monomers provided with temperature sensing cables, such as nuclear power plant and the like.

Inventors

WANG TAO
LI GUIHAO
LIU YUECHAO
WANG DAMING
ZHANG WENLIN
YAN SHUAI
ZHAO SHENGWEI

Assignees

中国核电工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250522

Claims (10)

1. An apparatus for temperature sensitive cable testing, the apparatus comprising: The box body assembly is of a hollow structure, a first surface and a second surface of the box body assembly are provided with holes, the first surface and the second surface are two surfaces which are oppositely arranged on the box body assembly, and the hollow structure and the holes form a containing cavity for containing the temperature sensing cable; the heating piece is arranged in the box body and is used for heating the accommodating cavity; The temperature control assembly is arranged inside the box body and is electrically connected with the heating element, and is used for acquiring the temperature in the accommodating cavity and controlling the heating temperature of the heating element.
2. The apparatus of claim 1, wherein the heating element comprises: The radiator comprises a positive temperature coefficient ceramic heater and a U-shaped corrugated radiating pipe connected with the positive temperature coefficient ceramic heater.
3. The device according to claim 1 or 2, wherein, The number of the heating pieces is two, one end of the first heating piece is arranged on the first surface, and the other end of the first heating piece is arranged on the second surface; One end of the second heating piece is arranged on the first surface, the other end of the second heating piece is arranged on the second surface, and the first heating piece and the second heating piece are oppositely arranged.
4. The apparatus of claim 1, wherein the temperature control assembly comprises: the temperature sensor is arranged in the accommodating cavity and is used for acquiring the temperature in the accommodating cavity; The analog-to-digital converter is electrically connected with the temperature sensor and is used for converting a temperature signal into a digital signal; And the microprocessor is electrically connected with the analog-to-digital converter, is used for acquiring the digital signal and is also used for controlling the heating temperature of the heating element.
5. The apparatus of claim 1, wherein the apparatus further comprises: The fixing piece is arranged at the accommodating cavity and used for fixing the temperature sensing cable.
6. The apparatus of claim 5, wherein the securing member comprises a clip.
7. The apparatus of claim 1 or 5, wherein the device comprises a plurality of sensors, The number of the fixing pieces is two; The first fixing piece is close to the first surface and far away from the second surface; the second fixing piece is close to the second face and far away from the first face.
8. The apparatus of claim 1, wherein the cartridge assembly is a polyurethane board.
9. The apparatus of claim 1, wherein the apparatus further comprises: the display component is arranged on the third face of the box body component, is electrically connected with the temperature control component and is used for acquiring and displaying the temperature in the accommodating cavity.
10. The apparatus of claim 1, wherein the apparatus further comprises: The handle is arranged on any surface of the box body assembly, and the device is carried or moved through the handle.

Description

Device for testing temperature-sensing cable Technical Field The utility model relates to the technical field of cable overhaul devices, in particular to a device for testing a temperature-sensing cable. Background The fire alarm system of the whole Plant of the nuclear power station mainly comprises three parts of a nuclear island, a conventional island and a Plant auxiliary facility (BOP) factory building according to region division. The temperature sensing cable refers to a cable type line type constant temperature fire detector, is stable and reliable, and is suitable for fire detection in severe environments. In the related art, a recoverable temperature sensing cable is used in a nuclear power station, the recoverable temperature sensing cable forms a steel wire comprising a thermosensitive insulating material, under the condition of on-site temperature change of the nuclear power station, resistance between steel wire wires changes, and when the resistance change reaches a set alarm threshold value, a detector sends out a fire alarm signal. During the debugging of the fire alarm system, single debugging is required for each temperature sensing cable. In the related art, a handheld heat gun is used for debugging a temperature-sensing cable monomer, the heating temperature of the heat gun is uncertain, the alarm threshold value is easily exceeded, and a large error exists in verification of the temperature-sensing cable threshold value. Disclosure of Invention In view of the above, the utility model provides a device for testing a temperature-sensing cable, which is used for solving the problems that when a handheld hot air gun is used for debugging a temperature-sensing cable monomer, the heating temperature of the hot air gun is uncertain, and a large error exists in verification of a threshold value of the temperature-sensing cable. The utility model provides a device for testing a temperature-sensing cable, which comprises a box body component, a heating piece and a temperature control component, wherein a hollow structure is arranged in the box body component, a first surface and a second surface of the box body component are provided with holes, the first surface and the second surface are two surfaces which are oppositely arranged on the box body component, the hollow structure and the two holes form a containing cavity for containing the temperature-sensing cable, the heating piece is arranged in the box body and is used for heating the containing cavity, the temperature control component is arranged in the box body and is electrically connected with the heating piece, the temperature control component is used for acquiring the temperature in the containing cavity, and the temperature control component is also used for controlling the heating temperature of the heating piece. In addition, the device for testing the temperature sensing cable in the embodiment not only can be used for debugging the temperature sensing cable monomer of a fire alarm system of a nuclear power plant, but also can be used for debugging other monomers provided with the temperature sensing cable, such as nucleation, and the like, can be used for testing and verifying the temperature sensing cable in other industries, and has a larger application range. In an alternative embodiment, the heating element comprises a positive temperature coefficient ceramic heater and a U-shaped corrugated radiating pipe connected with the positive temperature coefficient ceramic heater. The PTC ceramic heater has the advantages of long service life, good heat preservation performance, strong mechanical performance, corrosion resistance, anti-magnetic field and the like. In an alternative embodiment, the number of the heating elements is two, one end of the first heating element is arranged on the first surface, the other end of the first heating element is arranged on the second surface, one end of the second heating element is arranged on the first surface, the other end of the second heating element is arranged on the second surface, and the first heating element and the second heating element are arranged oppositely. The temperature in the accommodating cavity can be improved more rapidly, and further the efficiency of temperature sensing cable testing is improved. In an alternative embodiment, the temperature control assembly comprises a temperature sensor arranged in the accommodating cavity, an analog-to-digital converter electrically connected with the temperature sensor and used for converting a temperature signal into a digital signal, and a microprocessor electrically connected with the analog-to-digital converter and used for obtaining the digital signal and controlling the heating temperature of the heating element. The temperature of the temperature sensing cable can be accurately controlled by arranging the PTC ceramic heater and the temperature control assembly. In an alternative embodiment, the device further comprises a f