A sensor base heating device based on an in-built heating rod

Abstract

The utility model discloses a sensor base heating device based on built -in heating rod, including cylindrical sensor base, its characterized in that: the inside axial of sensor base has at least one blind hole, the inside of sensor base has at least one blind hole, and the blind hole is inserted with the tubular heating rod, the outside of sensor base is equipped with the temperature controller interface of electric connection with tubular heating rod, the utility model discloses through the built -in integration of tubular heating rod in the blind hole of sensor base to make the heat can directly even from the sensor inside to the outside transmission, greatly reduced heat transfer path and heat loss, realized fast heating and accurate temperature response, avoided the phenomenon of local overheating or heating deficiency effectively simultaneously, further reach the comprehensive purpose of promotion heating efficiency and temperature uniformity, reduce energy consumption, protect heating element from the outside environment invasion to prolong the service life, and simplify the replacement maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of industrial sensor temperature control technology, specifically to a sensor base heating device based on a built-in heating rod. Background Technology

[0002] In industrial fields such as petrochemicals and environmental monitoring, it is often necessary to monitor parameters such as the concentration of components in sample gases in real time using online analytical instruments. The core sensors of these instruments are extremely sensitive to their operating temperature; temperature fluctuations directly affect the stability and accuracy of the measurement signal. Therefore, it is essential to equip the sensors with dedicated heating and insulation devices to ensure that they are always at a constant optimal operating temperature.

[0003] Currently, the industry standard practice is to wrap a heating coil or heating band around the cylindrical sensor base. While this method heats the base via an external heat source and solves the insulation problem to some extent, its inherent drawbacks are quite obvious: First, heat is transferred from the outside to the inside, resulting in a long path and high thermal resistance, leading to low thermal efficiency, slow heating, and lag in temperature response; second, the limited contact area between the heating coil and the base surface, coupled with susceptibility to environmental wind speed and temperature interference, causes uneven heating of the base, easily resulting in localized overheating or underheating cold areas; finally, external heating exposes the heating element directly to harsh environments, making it susceptible to moisture, corrosion, damage from physical impacts, and inconvenient to replace.

[0004] In summary, existing external heating methods have shortcomings in terms of thermal efficiency, temperature uniformity, response speed, durability, and ease of maintenance, making it difficult to meet the increasingly demanding temperature control requirements of high-precision measuring instruments. Therefore, developing a novel sensor heating device to fundamentally overcome these deficiencies has become an urgent technical problem to be solved in this field. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model proposes a sensor base heating device based on a built-in heating rod, which can overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A sensor base heating device based on a built-in heating rod; The sensor base heating device based on the built-in heating rod includes a cylindrical sensor base, characterized in that: at least one blind hole is axially opened inside the sensor base; a cylindrical heating rod is inserted into the blind hole; and a temperature controller interface electrically connected to the cylindrical heating rod is provided on the outside of the sensor base.

[0007] Furthermore, the cylindrical heating rod is a stainless steel armored heating rod.

[0008] Furthermore, a temperature sensor is also provided inside the sensor base, and the temperature sensor is electrically connected to the interface of the temperature controller.

[0009] Furthermore, the temperature sensor is a PT100 platinum resistance temperature sensor.

[0010] Furthermore, the opening of the blind hole is provided with a clamping and fixing structure for clamping and fixing the cylindrical heating rod.

[0011] Furthermore, the clamping and fixing structure includes a combination of screws and flat washers.

[0012] Furthermore, the sensor base is made of stainless steel.

[0013] Furthermore, there are two blind holes, which are arranged symmetrically along the axis of the sensor base.

[0014] Furthermore, the temperature controller interface is located on the side wall or end face of the sensor base.

[0015] The beneficial effects of this utility model are as follows: By integrating the cylindrical heating rod into the blind hole of the sensor base, heat can be transferred directly and evenly from the inside of the sensor to the outside, which greatly reduces the heat transfer path and heat loss, achieves rapid heating and accurate temperature response, and effectively avoids local overheating or insufficient heating. This achieves the comprehensive goals of improving heating efficiency and temperature uniformity, reducing energy consumption, protecting the heating element from external environmental damage to extend its service life, and simplifying the replacement and maintenance process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of the overall structure of a sensor base heating device based on a built-in heating rod according to an embodiment of the present utility model; In the diagram: 1. Sensor base; 101. Blind hole; 2. Cylindrical heating rod; 3. Temperature controller interface; 4. Temperature sensor; 5. Pressing and fixing structure. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0019] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0020] like Figure 1 As shown, a sensor base heating device based on a built-in heating rod according to an embodiment of the present invention includes a cylindrical sensor base 1, characterized in that: at least one blind hole 101 is axially opened inside the sensor base 1; a cylindrical heating rod 2 is inserted into the blind hole 101; and a temperature controller interface 3 electrically connected to the cylindrical heating rod 2 is provided on the outside of the sensor base 1.

[0021] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the cylindrical heating rod 2 is a stainless steel armored heating rod.

[0022] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the sensor base 1 is further provided with a temperature sensor 4 inside, and the temperature sensor 4 is electrically connected to the temperature controller interface 3.

[0023] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the temperature sensor 4 is a PT100 platinum resistance temperature sensor.

[0024] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided, in a specific embodiment, a pressing and fixing structure 5 for pressing and fixing the cylindrical heating rod 2 is provided at the opening of the blind hole 101.

[0025] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the clamping and fixing structure 5 includes a combination of screws and flat washers.

[0026] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the sensor base 1 is made of stainless steel.

[0027] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided. In a specific embodiment, the number of blind holes 101 is two, which are symmetrically arranged along the axis of the sensor base 1.

[0028] According to an embodiment of the present invention, a sensor base heating device based on a built-in heating rod is provided, in a specific embodiment, the temperature controller interface 3 is disposed on the side wall or end face of the sensor base 1.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0030] In practical use, the sensor base heating device based on a built-in heating rod according to this utility model mainly includes a cylindrical metal (such as 316L stainless steel) sensor base 1. Inside the base 1, two symmetrical blind holes 101 are machined along its axial direction. A stainless steel armored cylindrical heating rod 2 is tightly inserted into each blind hole 101. The armored design makes the heating rod have high mechanical strength, corrosion resistance, and a longer service life.

[0031] A temperature controller interface 3 is provided on the outside of the sensor base 1. This interface is connected to the electrodes of the two heating rods 2 via internal wires, and is used for external temperature control to supply power to the heating rods and receive control signals.

[0032] To achieve precise temperature control, a temperature sensor 4 (such as a PT100 platinum resistance thermometer) is also installed inside the sensor base 1. The probe end of the temperature sensor 4 is inserted directly into the base, enabling it to monitor the actual temperature of the base in real time and feed the signal back to the external temperature controller through wires, forming a closed-loop control to ensure minimal temperature fluctuations.

[0033] At the openings of the two blind holes 101, a clamping and fixing structure 5 is provided. This structure consists of an M3 screw and an M3 flat washer, and its main function is to clamp and fix the heating rod 2 to prevent the heating rod 2 from falling out of the hole, thus ensuring the safe operation of the equipment.

[0034] Working process: The external temperature controller is powered through the temperature controller interface 3, driving the cylindrical heating rod 2 to generate heat. The heat is directly transferred to the metal body of the sensor base 1, causing it to heat up quickly and evenly. The temperature sensor 4 monitors the temperature in real time and feeds it back to the temperature controller. The temperature controller adjusts the output power through a PID algorithm, ultimately ensuring that the sensor base 1 is accurately and stably maintained at the set operating temperature.

[0035] The working principle of this invention is as follows: a cylindrical heating rod is directly inserted into a blind hole inside the sensor base. After power is applied, heat is directly transferred from the inside to the sensor base body. This "internal heat generation" mode greatly improves heat conduction efficiency.

[0036] In summary, the following beneficial effects are achieved by utilizing the above-described technical solution of this utility model: 1. More stable heating and uniform temperature: Heat diffuses evenly from the inside of the sensor base to the outside, avoiding local overheating and cold areas caused by external heating. This ensures that the sensor as a whole is in a uniform and stable temperature field, which significantly improves measurement accuracy.

[0037] 2. Fast response speed: Due to the built-in heating source, the heat transfer path is extremely short and the thermal inertia is small, which can quickly reach the set temperature and respond rapidly to temperature changes.

[0038] 3. Durable and long service life: The heating rod is installed inside the base, which provides good protection against external moisture, chemicals, dust and physical impact, greatly extending its service life.

[0039] 4. Easy to replace and low maintenance cost: When the heating rod needs to be replaced, there is no need to disassemble the entire sensor or heating device. Simply pull out the old heating rod from the blind hole and insert the new one. The operation is simple and quick, saving maintenance time and costs.

[0040] 5. Convenient and affordable (energy-saving and economical): High thermal efficiency, with almost all heat energy absorbed by the base, reducing heat loss. It is more energy-efficient than external heating coils and can save on electricity bills in the long run.

[0041] 6. Less affected by external factors: Due to the built-in heating unit, the influence of external factors such as ambient temperature and wind speed on the heating process is minimized, resulting in better heat preservation.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sensor base heating device based on a built-in heating rod, characterized in that, The sensor base (1) includes a cylindrical sensor base (1), characterized in that: at least one blind hole (101) is axially opened inside the sensor base (1); a cylindrical heating rod (2) is inserted into the blind hole (101); and a temperature controller interface (3) electrically connected to the cylindrical heating rod (2) is provided on the outside of the sensor base (1).

2. The sensor base heating device based on a built-in heating rod according to claim 1, characterized in that, The cylindrical heating rod (2) is a stainless steel armored heating rod.

3. A sensor base heating device based on a built-in heating rod according to claim 1 or 2, characterized in that, The sensor base (1) is also equipped with a temperature sensor (4), which is electrically connected to the temperature controller interface (3).

4. A sensor base heating device based on a built-in heating rod according to claim 3, characterized in that, The temperature sensor (4) is a PT100 platinum resistance temperature sensor.

5. A sensor base heating device based on a built-in heating rod according to claim 1, characterized in that, The opening of the blind hole (101) is provided with a clamping and fixing structure (5) for clamping and fixing the cylindrical heating rod (2).

6. A sensor base heating device based on a built-in heating rod according to claim 5, characterized in that, The clamping and fixing structure (5) includes a combination of screws and flat washers.

7. A sensor base heating device based on a built-in heating rod according to claim 1, characterized in that, The sensor base (1) is made of stainless steel.

8. A sensor base heating device based on a built-in heating rod according to claim 1, characterized in that, The number of blind holes (101) is two, and they are arranged symmetrically along the axis of the sensor base (1).

9. A sensor base heating device based on a built-in heating rod according to claim 1, characterized in that, The temperature controller interface (3) is located on the side wall or end face of the sensor base (1).

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