An electric heat tracing line safety control box

Abstract

The utility model relates to a kind of electric heat tracing wire safety control box, including shell, temperature sensor, isolation plate, alarm device, access door, control module and terminal, shell top is provided with mounting hole, the left end of shell is provided with multiple wiring holes, shell is hollowly provided, temperature sensor is rotatably installed in first mounting hole by support, so that temperature sensor can be moved to the place where it wants to measure, and not limited to a position, isolation plate is fixedly connected in the inside of shell, isolation plate top is provided with the threading hole that passes through up and down, alarm device is fixedly connected at the inner bottom of shell, access door is rotatably connected at the front and rear of shell, control module is fixedly connected at the top of isolation plate, control module is electrically connected with alarm device, terminal is fixedly connected in the wiring hole of shell, control module controls whether to start alarm device according to the data of temperature sensor simultaneously, so that operator warning is given.

Description

Technical Field

[0001] This utility model relates to the field of controller safety facilities technology, and in particular to a safety control box for electric heat tracing wire. Background Technology

[0002] Electric heat tracing technology, as a highly efficient solution for pipeline insulation and freeze protection, is widely used in petrochemical, municipal engineering, and building heating industries. It compensates for heat loss in pipelines or equipment by generating heat through electric heat tracing wires, ensuring that the medium maintains a suitable temperature in low-temperature environments. However, the safety and reliability of electric heat tracing systems are highly dependent on the design of the supporting control equipment. Especially under complex operating conditions, the accuracy of temperature monitoring, circuit protection capabilities, and fault response mechanisms directly affect the safe operation of the system. Traditional control boxes generally use fixed temperature sensors, directly installed on the inner wall of the control box by bolts or clips, with their sensing ends facing a fixed direction. When the electric heat tracing wire is wrapped around irregularly shaped pipes or densely arranged pipe bundles, the fixed sensor cannot get close to the surface of the heat tracing wire, or the pipe shadow effect may create a monitoring blind spot, causing temperature data lag or distortion. Furthermore, traditional safety control boxes, after triggering a safety alarm, only stop power supply and cannot promptly notify the operator, potentially leading to damage to the settings. Utility Model Content

[0003] The purpose of this invention is to provide a safety control box for electric heat tracing wires to solve the problems existing in the prior art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A safety control box for an electric heat tracing wire, comprising:

[0006] The outer casing has a through mounting hole at the top and a plurality of through wiring holes at the left end for connecting wires of the electric heating wire. The outer casing is hollow.

[0007] A temperature sensor is rotatably mounted in a mounting hole via a bracket, and the temperature sensor is used to measure the temperature of the electric heat tracing wire.

[0008] An isolation plate is fixedly connected to the inside of the outer shell, dividing the outer shell into upper and lower compartments. A through-hole for wiring is provided on the top of the isolation plate.

[0009] An alarm device is fixedly connected to the inner bottom end of the housing;

[0010] The access door is rotatably connected to the front and rear sides of the housing and is used to facilitate maintenance.

[0011] A control module is fixedly connected to the top of the isolation plate. The control module is electrically connected to the alarm device and is used to control the alarm device.

[0012] The device includes multiple wiring terminals with identical structures. Each wiring terminal is fixedly connected to a wiring hole in the housing and is used to fix the wires connecting the heating element to the circuit board.

[0013] By adopting the above technical solution, the temperature sensor is rotatably connected to the housing, allowing the temperature sensor to be moved to the desired measurement location, without being limited to a specific position. At the same time, the control module controls whether to activate the alarm device based on the data from the temperature sensor, thereby alerting the operator.

[0014] In a further embodiment, the support includes:

[0015] A base, which is fixedly connected to the inner wall of the outer casing;

[0016] A rotating shaft, one end of which is rotatably connected to the top of the base;

[0017] The adjustable arm has one end fixedly connected to the other end of the rotating shaft, and the other end of the adjustable arm is detachably connected to a temperature sensor. The adjustable arm is equipped with a locking bolt.

[0018] In a further embodiment, the alarm device includes:

[0019] A power supply, which is fixedly connected to the inner bottom end of the housing;

[0020] An alarm light is embedded in the top and outer periphery of the housing and is electrically connected to a power source.

[0021] A buzzer is fixedly connected to the bottom end of the isolation plate and is connected to a power cord.

[0022] In a further embodiment, a waterproof gasket is provided on the inner side of the inspection door, and a buckle is provided on the outer side of the inspection door for locking the inspection door.

[0023] In a further embodiment, the terminal block includes a terminal block and a stud, the terminal block has an anti-misinsertion protrusion inside, and a sealing ring is provided inside the wiring hole.

[0024] In a further embodiment, an adjustment knob is provided at the right end of the housing, the adjustment knob is electrically connected to the alarm device, a heat insulation sleeve is provided on the outside of the temperature sensor, the heat insulation sleeve is fixedly connected to the adjustment arm of the bracket, and the temperature sensor is electrically connected to the control module.

[0025] In a further embodiment, multiple buckles are provided, and the buckles have the same structure. Each buckle includes a hook and a latch. The hook is fixedly connected to one end of the access door, and the latch is fixedly connected to one side of the outer shell.

[0026] By adopting the above technical solution, the wires of the electric heat tracing cable are connected to the inside of the terminal block. Rotating the stud causes the terminal block to move downwards, clamping and fixing the wires of the electric heat tracing cable. The temperature sensor is rotatably connected to the housing via a bracket, first via a rotating shaft, and then via an adjusting arm, allowing the adjusting arm to move freely. The temperature sensor is fixedly connected to one end of the adjusting arm, allowing it to be moved to the desired measurement position. The control module determines whether the alarm device should be activated based on the temperature sensor data. If the required alarm data is not reached, normal operation continues. If the alarm data is reached, the alarm device is activated, the alarm light illuminates, and the buzzer sounds to alert the operator. The required alarm data can be adjusted using the adjustment knob on the right side of the housing, thus adapting to alarms at different temperatures.

[0027] In summary, this utility model has the following beneficial effects:

[0028] 1. By connecting the wires of the electric heat tracing cable to the inside of the terminal block, rotating the stud causes the terminal block to move downwards, thus clamping and fixing the wires of the electric heat tracing cable. The temperature sensor is rotatably connected to the housing via a bracket, first rotatably connected to the housing via a rotating shaft, and then rotatably connected to the rotating shaft via an adjusting arm, allowing the adjusting arm to move freely. The temperature sensor is fixedly connected to one end of the adjusting arm, allowing the temperature sensor to be moved to the position to be measured. The control module determines whether the alarm device should be activated based on the data from the temperature sensor. If the required alarm data has not been reached, normal operation is maintained. If the alarm data is reached, the alarm device is activated, the alarm light illuminates, and the buzzer sounds to alert the operator. The required alarm data can be adjusted using the adjustment knob on the right side of the housing, thus adapting to the alarm effect at different temperatures. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the bracket of this utility model;

[0031] Figure 3 This is a schematic diagram of the alarm device of this utility model.

[0032] In the diagram: 1. Housing; 2. Temperature sensor; 3. Isolation plate; 4. Alarm device; 41. Power supply; 42. Alarm light; 43. Buzzer; 5. Inspection door; 6. Control module; 7. Terminal block; 71. Terminal block; 72. Stud; 8. Bracket; 81. Base; 82. Rotating shaft; 83. Adjusting arm; 9. Buckle; 91. Hook; 92. Lock; 10. Adjusting knob. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0035] Example 1:

[0036] like Figure 1-3 As shown, an electric heat tracing wire safety control box includes a housing 1, a temperature sensor 2, an isolation plate 3, an alarm device 4, an inspection door 5, a control module 6, and wiring terminals 7. The housing 1 has a through-hole at its top and multiple through-holes on its left side for connecting the electric heat tracing wires. The housing 1 is hollow. The temperature sensor 2 is rotatably mounted in the installation hole via a bracket 8 and is used to measure the temperature of the electric heat tracing wire. The isolation plate 3 is fixedly connected inside the housing 1, dividing it into upper and lower compartments. A through-hole is provided at the top of the isolation plate 3. The alarm device 4 is fixedly connected to the bottom inner end of the housing 1. The inspection door 5 is rotatably connected to the front and rear sides of the housing 1 for easy maintenance. The control module 6 is fixedly connected to the top of the isolation plate 3 and is electrically connected to the alarm device 4 for controlling the alarm device 4. Multiple wiring terminals 7 are provided, all with identical structures, and are fixedly connected in the wiring holes of the housing 1 for fixing the electric heat tracing wires.

[0037] The bracket 8 includes a base 81, a rotating shaft 82, and an adjusting arm 83. The base 81 is fixedly connected to the inner wall of the housing 1. One end of the rotating shaft 82 is rotatably connected to the top of the base 81. One end of the adjusting arm 83 is fixedly connected to the other end of the rotating shaft 82. The other end of the adjusting arm 83 is detachably connected to the temperature sensor 2. A locking bolt is provided on the adjusting arm 83.

[0038] The alarm device 4 includes a power supply 41, an alarm light 42, and a buzzer 43. The power supply 41 is fixedly connected to the inner bottom of the housing 1. The alarm light 42 is embedded in the outer top and outer periphery of the housing 1. The alarm light 42 is electrically connected to the power supply 41. The buzzer 43 is fixedly connected to the bottom of the isolation plate 3. The buzzer 43 is wired to the power supply 41.

[0039] The inside of the inspection door 5 is provided with a waterproof gasket, and the outside of the inspection door 5 is provided with a buckle 9 for locking the inspection door 5. The terminal block 7 includes a terminal block 71 and a stud 72. The terminal block 7 has an anti-misinsertion protrusion inside and a sealing ring inside the wiring hole.

[0040] An adjustment knob 10 is provided on the right end of the outer casing 1. The adjustment knob 10 is electrically connected to the alarm device 4. A heat insulation sleeve is provided on the outside of the temperature sensor 2. The heat insulation sleeve is fixedly connected to the adjustment arm 83 of the bracket 8. The temperature sensor 2 is electrically connected to the control module 6. Multiple buckles 9 are provided. The buckles 9 have the same structure. The buckles 9 include a hook 91 and a latch 92. The hook 91 is fixedly connected to one end of the inspection door 5, and the latch 92 is fixedly connected to one side of the outer casing 1.

[0041] Specific implementation process: Connect the wires of the electric heat tracing cable to the inside of the terminal block 7. Rotate the stud 72 to move the terminal block 71 downward, clamping and fixing the wires of the electric heat tracing cable. The temperature sensor 2 is rotatably connected to the outer casing 1 via the bracket 8. First, it is rotatably connected to the outer casing 1 via the rotating shaft 82, and then rotatably connected to the rotating shaft 82 via the adjusting arm 83, allowing the adjusting arm 83 to move freely. The temperature sensor 2 is fixedly connected to one end of the adjusting arm 83, allowing the temperature sensor 2 to be moved to the position to be measured. The control module 6 determines whether the alarm device 4 should be activated based on the data from the temperature sensor 2. If the alarm data is not reached, it operates normally. If the alarm data is reached, the alarm device 4 is activated, the alarm light 42 illuminates, and the buzzer 43 is activated to sound an alarm to remind the operator. The alarm data to be reached can be adjusted via the adjusting knob 10 on the right side of the outer casing 1, thus adapting to alarms at different temperatures.

[0042] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A safety control box for an electric heat tracing wire, characterized in that, include: The outer shell (1) has a through mounting hole at the top and a multiple through wiring holes at the left end of the outer shell (1). The wiring holes are used to connect the wires of the electric heating wire. The outer shell (1) is hollow. Temperature sensor (2), which is rotatably mounted in the mounting hole via bracket (8), is used to measure the temperature of the electric heat tracing wire; Isolation plate (3), the isolation plate (3) is fixedly connected to the inside of the outer shell (1), the isolation plate (3) divides the outer shell (1) into upper and lower compartments, and the top of the isolation plate (3) is provided with a through hole for wires to pass through from top to bottom; An alarm device (4) is fixedly connected to the inner bottom end of the outer casing (1); Inspection door (5), which is rotatably connected to the front and rear sides of the outer shell (1), and is used for convenient maintenance; Control module (6), the control module (6) is fixedly connected to the top of the isolation plate (3), the control module (6) is electrically connected to the alarm device (4), and the control module (6) is used to control the alarm device (4); The wiring terminal (7) is provided in multiple ways. The wiring terminal (7) has the same structure and is fixedly connected in the wiring hole of the outer shell (1). The wiring terminal (7) is used to fix the wires of the heating plate.

2. The electric heat tracing wire safety control box according to claim 1, characterized in that: The support (8) includes: A base (81) is fixedly connected to the inner wall of the outer casing (1); A rotating shaft (82), one end of which is rotatably connected to the top of the base (81); The adjusting arm (83) is fixedly connected at one end to the other end of the rotating shaft (82), and the other end of the adjusting arm (83) is detachably connected to the temperature sensor (2). The adjusting arm (83) is provided with a locking bolt.

3. The electric heat tracing wire safety control box according to claim 1, characterized in that: The alarm device (4) includes: Power supply (41), which is fixedly connected to the inner bottom end of the outer casing (1); An alarm light (42) is embedded in the outer top and outer periphery of the housing (1) and is electrically connected to a power supply (41). A buzzer (43) is fixedly connected to the bottom end of the isolation plate (3) and the buzzer (43) is connected to the power supply (41) wire.

4. A safety control box for an electric heat tracing wire according to claim 1, characterized in that: The inner side of the inspection door (5) is provided with a waterproof gasket, and the outer side of the inspection door (5) is provided with a buckle (9), which is used to lock the inspection door (5).

5. A safety control box for an electric heat tracing wire according to claim 1, characterized in that: The terminal block (7) includes a terminal block (71) and a stud (72). The terminal block (7) has an anti-misinsertion protrusion inside and a sealing ring inside the wiring hole.

6. A safety control box for an electric heat tracing wire according to claim 1, characterized in that: An adjustment knob (10) is provided on the right end of the outer casing (1). The adjustment knob (10) is electrically connected to the alarm device (4). A heat insulation sleeve is provided on the outside of the temperature sensor (2). The heat insulation sleeve is fixedly connected to the adjustment arm (83) of the bracket (8). The temperature sensor (2) is electrically connected to the control module (6).

7. A safety control box for an electric heat tracing wire according to claim 4, characterized in that: Multiple buckles (9) are provided, and the buckles (9) have the same structure. Each buckle (9) includes a hook (91) and a latch (92). The hook (91) is fixedly connected to one end of the inspection door (5), and the latch (92) is fixedly connected to one side of the outer shell (1).

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