Heat tracing system

Abstract

The utility model discloses a heat tracing system in the technical field of flue gas on-line monitoring, which comprises a temperature control box provided with a closed inner cavity; the infrared heating lamp is mounted in the closed inner cavity; the temperature sensor is installed in the closed inner cavity and used for detecting real-time temperature information in the closed inner cavity; the temperature controller is in electric signal connection with the temperature sensor and used for receiving real-time temperature information detected by the temperature sensor, and the temperature controller can control the infrared heating lamp to be powered on and powered off according to the real-time temperature information. According to the utility model, an infrared heating mode is adopted, so that the temperature in the temperature control box can be accurately controlled, the temperature in the temperature control box can be uniformly controlled, and the temperature control box has the advantages of low cost, high heating efficiency, high temperature rise speed, wide heating area and difficulty in generating cold spots.

Description

Technical Field

[0001] This utility model relates to the field of flue gas online monitoring technology, specifically to a heat tracing system. Background Technology

[0002] Heat tracing systems are widely used in automatic flue gas monitoring systems and online monitoring of volatile organic compounds. Their main function is to heat the gas during the flow process to prevent the condensation of moisture and harmful components in the gas, thereby ensuring the normal operation of the online monitoring system.

[0003] In existing technologies, heat tracing systems generally use heating rods and metal heat conduction to bring the inner cavity of the temperature control box to the required temperature, such as the compressed air preheating device for flue gas sampling probes disclosed in patent document CN208833564U. This type of heat tracing not only has low heating efficiency but also requires a large amount of metal heat conduction, which can no longer meet user needs.

[0004] Therefore, how to improve the heating efficiency of heat tracing systems has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a heat tracing system to solve the technical problem of low heating efficiency in existing heat tracing systems.

[0006] The technical solution adopted in this utility model is: a heat tracing system, comprising:

[0007] A temperature control box having a closed inner cavity;

[0008] An infrared heating lamp, wherein the infrared heating lamp is installed in a closed inner cavity;

[0009] A temperature sensor, which is installed in a closed cavity, is used to detect real-time temperature information in the closed cavity;

[0010] A temperature controller is electrically connected to a temperature sensor to receive real-time temperature information detected by the temperature sensor, and the temperature controller can control the power supply of the infrared heating lamp according to the real-time temperature information.

[0011] Preferably, a reflector is installed on the inner wall of the temperature control box.

[0012] Preferably, heat insulation cotton is installed on the outer wall of the temperature control box.

[0013] Preferably, the number of infrared heating lamps is two.

[0014] Preferably, the two infrared heating lamps are mounted side by side on the bottom wall of the temperature control box.

[0015] Preferably, the infrared heating lamp is connected to a power supply circuit, which includes a relay and a power source. The power source is electrically connected to the relay via a wire, and the relay is electrically connected to the infrared heating lamp via a wire. The temperature controller is electrically connected to the relay via a signal.

[0016] The beneficial effects of this utility model are:

[0017] This invention employs infrared heating, with an infrared heating lamp installed inside the temperature control box. When the infrared heating lamp is powered on, the infrared rays emitted heat the pipelines and equipment within the sealed cavity of the temperature control box. A temperature sensor monitors the internal temperature of the temperature control box in real time, and a temperature controller controls the power on and off of the infrared heating lamp based on the real-time temperature information. This not only allows for precise and uniform temperature control within the temperature control box, but also offers advantages such as low cost, high heating efficiency, rapid temperature rise, wide heating area, and reduced likelihood of cold spots. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heat tracing system of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of section AA in the diagram.

[0020] Explanation of the reference numerals in the figure:

[0021] 1. Temperature control box; 2. Infrared heating lamp; 3. Temperature sensor; 4. Temperature controller; 5. Enclosed inner cavity; 6. Reflector; 7. Insulation cotton; 8. Relay; 9. Power supply. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0023] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] Examples, such as Figure 1 and Figure 2 As shown, a heat tracing system includes:

[0027] Temperature control box 1, which has a closed inner cavity 5.

[0028] Infrared heating lamp 2, which is installed in the closed inner cavity 5.

[0029] Temperature sensor 3 is installed in the closed inner cavity 5 and is used to detect the real-time temperature information in the closed inner cavity 5.

[0030] Temperature controller 4 is electrically connected to temperature sensor 3 and is used to receive real-time temperature information detected by temperature sensor 3. Temperature controller 4 can control the infrared heating lamp 2 to be powered on or off according to the real-time temperature information.

[0031] This invention employs infrared heating. An infrared heating lamp 2 is installed inside the temperature control box 1. When the infrared heating lamp 2 is powered on, the infrared rays emitted by it heat the pipelines and equipment inside the closed inner cavity 5 of the temperature control box 1. The internal temperature of the temperature control box 1 is detected in real time by a temperature sensor 3, and the infrared heating lamp 2 is powered on and off by a temperature controller 4 based on the real-time temperature information of the temperature control box 1. This not only allows for precise temperature control inside the temperature control box 1, resulting in uniform internal temperature control, but also has the advantages of low cost, high heating efficiency, fast temperature rise, wide heating area, and low likelihood of cold spots.

[0032] Specific embodiment 1, such as Figure 1 and Figure 2 As shown, a heat tracing system is used in a flue gas online monitoring system. It can provide high-temperature heat tracing for the gas flowing in the pipeline to prevent the condensation of moisture and harmful components in the gas. The heat tracing system includes: a temperature control box 1, an infrared heating lamp 2, a temperature sensor 3, a temperature controller 4, and a power supply circuit.

[0033] The temperature control box 1 is hollow inside, forming a closed inner cavity 5. The closed inner cavity 5 is used to accommodate pipelines and equipment. At both ends of the temperature control box 1, there are air inlets and air outlets that communicate with the closed inner cavity 5. Heat insulation cotton 7 is installed on the outer wall of the temperature control box 1. The heat insulation cotton 7 is used to prevent heat exchange between the inside and outside of the temperature control box 1, and the temperature inside and outside of the temperature control box 1 is isolated by the heat insulation cotton 7.

[0034] There are two infrared heating lamps 2, which are housed inside the temperature control box 1 and are installed side by side on the bottom wall of the temperature control box 1. A reflector 6 is installed on the inner wall of the temperature control box 1. The reflector 6 can reflect infrared rays to enhance the intensity of infrared thermal radiation and improve the heating efficiency.

[0035] Specifically, the infrared heating lamp 2 is connected to a power supply circuit, which includes a relay 8 and a power supply 9. The power supply 9 is electrically connected to the relay 8 via a wire, and the relay 8 is electrically connected to the infrared heating lamp 2 via a wire.

[0036] The temperature sensor 3 is installed in the closed inner cavity 5, and the temperature sensor 3 can detect the real-time temperature information in the closed inner cavity 5.

[0037] The temperature controller 4 is electrically connected to the temperature sensor 3 to receive real-time temperature information detected by the temperature sensor 3; the temperature controller 4 is also electrically connected to the relay 8, and the temperature controller 4 can control the power on or off of the infrared heating lamp 2 according to the real-time temperature information, thereby achieving precise temperature control inside the temperature control box 1.

[0038] The working principle of the heat tracing system of this invention is as follows:

[0039] This invention employs infrared heating technology. The temperature controller 4 controls the on / off state of the relay 8, thereby controlling the power supply to or off of the infrared heating lamp 2. The temperature sensor 3 monitors the internal temperature of the temperature control box 1 in real time, achieving precise control of the heating and temperature inside the temperature control box 1.

[0040] In this invention, the infrared heating lamp 2 diffuses and heats the interior of the temperature control box 1 through infrared thermal radiation, and then the infrared thermal radiation is reflected by the reflector 6 to enhance the radiation intensity, thereby accelerating the temperature rise of the temperature control box 1 and making the overall internal temperature more uniform.

[0041] Compared with the prior art, this application has at least the following beneficial technical effects:

[0042] This invention uses a temperature controller to precisely control the internal temperature of the temperature control box. It uses infrared thermal radiation to heat the box, resulting in uniform temperature control. A reflector enhances the intensity of infrared thermal radiation, resulting in high heating efficiency. Compared with existing heating rods and mica heating sheets that use heat-conducting blocks, this invention has the advantages of low cost, high heating efficiency, fast temperature rise, wide heating area, and less likelihood of cold spots.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A heat tracing system, characterized in that, include: Temperature control box (1), the temperature control box (1) having a closed inner cavity (5); Infrared heating lamp (2), the infrared heating lamp (2) is installed in the closed inner cavity (5); Temperature sensor (3), which is installed in the closed inner cavity (5) and is used to detect the real-time temperature information in the closed inner cavity (5); Temperature controller (4) is electrically connected to temperature sensor (3) and is used to receive real-time temperature information detected by temperature sensor (3). Temperature controller (4) can control the power supply of infrared heating lamp (2) according to real-time temperature information.

2. The heat tracing system according to claim 1, characterized in that, A reflector (6) is installed on the inner wall of the temperature control box (1).

3. A heat tracing system according to claim 2, characterized in that, The outer wall of the temperature control box (1) is fitted with heat insulation cotton (7).

4. A heat tracing system according to claim 1, characterized in that, The number of infrared heating lamps (2) is two.

5. A heat tracing system according to claim 4, characterized in that, The two infrared heating lamps (2) are mounted side by side on the bottom wall of the temperature control box (1).

6. A heat tracing system according to claim 1, characterized in that, The infrared heating lamp (2) is connected to the power supply circuit, which includes a relay (8) and a power supply (9). The power supply (9) is electrically connected to the relay (8) through a wire, and the relay (8) is electrically connected to the infrared heating lamp (2) through a wire. The temperature controller (4) is electrically connected to the relay (8).

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