Dry body furnace with temperature equalizing and heat dissipation structure

Abstract

The utility model discloses a dry body furnace with even temperature and heat radiation structure, including shell and temperature measurement unit, the shell is set to the tubular piece of open end and closed end respectively at both ends, is provided with the even heating block, heating portion, heat dissipation fin and fan in shell from open end to closed end in proper order, and the temperature measurement unit is embedded in even heating block, even heating block sets up in the inside of the even heating pipe, and heating portion sets up at even heating pipe bottom, and the side wall of shell is close to the through -going of closed end and is provided with the air outlet, and the annular flow circulation gap is arranged between the inner wall of shell and even heating block, is provided with the detection hole on even heating block, the utility model discloses optimizing heat transfer structure, eliminates the problem of uneven temperature field distribution caused by the temperature inconsistency of heating element and the indirect conduction of heat, improves the heating surface temperature consistency, ensures the calibration accuracy, realizes the active heat dissipation through the fan, changes the mode of passive heat dissipation of the existing terminal even temperature component, realizes the directional heat dissipation to the heat source, shortens the cooling response time, and improves the temperature control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dry block furnace technology, specifically to a dry block furnace with a temperature uniformity and heat dissipation structure. Background Technology

[0002] In the field of power plant temperature calibration, the dry block furnace, as a device for transmitting temperature standards, has temperature field uniformity, heating and cooling response speed, and environmental adaptability as core indicators for measuring calibration quality. Especially in outdoor temperature calibration work in photovoltaic and wind power plants, the heating and cooling control efficiency of the dry block furnace determines the efficiency and quality of maintenance operations.

[0003] Most existing dry block furnaces use multiple heating wires to heat the homogenizing block simultaneously. It is difficult to keep the temperature of different heating wires consistent, which can easily lead to deviations in temperature observation points. Furthermore, after heat is indirectly conducted, the temperature uniformity of different parts of the homogenizing block is poor. Generally, it is necessary to keep the heating block heated for a long time to stabilize its temperature before subsequent calibration operations can be performed. As for cooling operations, most of them use natural cooling, which is slow and cannot meet the requirements for rapid calibration. Therefore, the heating and cooling control efficiency of existing dry block furnaces is low, which cannot guarantee the efficiency and quality of maintenance operations.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Summary of the Invention

[0005] To address the aforementioned technical deficiencies, the present invention provides a dry block furnace with a uniform temperature and heat dissipation structure, comprising an outer shell and a temperature measuring unit. The outer shell is configured as a tubular component with an open end and a closed end, respectively. Inside the outer shell, a heat spreader, a heating element, a heat sink, and a fan are sequentially arranged from the open end to the closed end. The temperature measuring unit is embedded within the heat spreader, which is located inside the heat spreader tube, and the heating element is located at the bottom of the heat spreader tube. An air outlet is provided through the side wall of the outer shell near the closed end. An annular flow gap is provided between the inner wall of the outer shell and the heat spreader. A detection hole is provided on the heat spreader for placing a temperature sensor to be calibrated.

[0006] Preferably, the heat spreader is cylindrical and coaxial with the outer casing, and the detection hole extends inward from the end of the heat spreader near the open end along the axis of the heat spreader.

[0007] Preferably, the heat exchanger includes a bottom contact plate and side fixing plates. The bottom contact plate is a circular flat plate. Several side fixing plates are vertically fixed to one side of the bottom contact plate. The heating part is attached and fixed to the other side of the bottom contact plate. The bottom contact plate is attached and fixed to the end of the heat exchanger block. The side fixing plates are attached and fixed to the annular surface of the heat exchanger block.

[0008] Preferably, each of the edge fixing plates is evenly distributed in a ring around the axis of the bottom contact plate.

[0009] Preferably, a motor is fixedly installed outside the closed end, the output shaft of the motor passes through the housing and is connected to the fan, and the motor is positioned corresponding to the air outlet.

[0010] Preferably, the temperature measuring unit, the motor, and the heating element are all connected to an external control unit via wiring.

[0011] Preferably, a limiting bracket is also provided between the fan and the heat sink, the limiting bracket is fixedly disposed on the inner wall of the housing, and the heat sink is fixedly connected to the limiting bracket.

[0012] Preferably, the heat sink includes an adhesive plate and a plurality of heat dissipation plates, the heat dissipation plates are arranged in parallel, and each heat dissipation plate is vertically fixed on one side of the adhesive plate. The other side of the adhesive plate is attached and fixedly connected to the heating part, and a heat dissipation gap is formed between adjacent heat dissipation plates.

[0013] Preferably, the limiting frame is also provided with a flow hole, which is provided corresponding to the heat dissipation gap. The heat dissipation air flowing in the heat dissipation gap passes through the flow hole to the fan and is discharged from the air outlet.

[0014] Preferably, a passage gap is provided between the edge of the bonding plate and the inner wall of the outer shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model optimizes the heat transfer structure, eliminates the problem of uneven temperature distribution caused by inconsistent heating element temperatures and indirect heat conduction, improves the temperature consistency of the heating surface, and ensures calibration accuracy; the fan achieves active heat dissipation, changing the existing passive heat dissipation mode for terminal temperature equalization components, realizing directional heat dissipation of the heat source, shortening the cooling response time, and improving the efficiency of heating and cooling control. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the dry block furnace with a uniform temperature and heat dissipation structure. Figure 2 This is a top view of the dry block furnace with a uniform temperature and heat dissipation structure. The numbers in the image represent: 1-Outer shell; 2-Temperature measuring unit; 3-Heating block; 4-Heating section; 5-Heat sink; 6-Fan; 7-Heating pipe; 8-Motor; 9-Limiting bracket; 11-Air outlet; 31-Detection hole; 51-Adhesive plate; 52-Heat sink; 71-Bottom contact plate; 72-Side fixing plate; 91-Flow hole. Detailed Implementation

[0017] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, Figure 1 This is a cross-sectional view of the dry block furnace with a uniform temperature and heat dissipation structure. Figure 2 This is a top view of the dry block furnace with a uniform temperature and heat dissipation structure.

[0019] The dry block oven with a uniform temperature and heat dissipation structure of this utility model includes an outer shell 1 and a temperature measuring unit 2. The outer shell 1 is a tubular component with an open end and a closed end. Inside the outer shell 1, from the open end to the closed end, a heat spreader 3, a heating element 4, a heat sink 5, and a fan 6 are arranged sequentially. The temperature measuring unit 2 is embedded in the heat spreader 3. The heat spreader 3 is disposed inside a heat spreader tube 7, and the heating element 4 is disposed at the bottom of the heat spreader tube 7. Thus, the heat spreader 3 is stably heated by the heating element 4 heating the heat spreader tube 7, forming a heat transfer channel. The heat spreader tube 7 adopts... High thermal conductivity material is used to ensure the heating effect of the heating part 4 on the heat spreader 3. An air outlet 11 is provided through the side wall of the outer shell 1 near the closed end. An annular flow gap is provided between the inner wall of the outer shell 1 and the heat spreader 3. The fan 6 provides power to make air enter the annular flow gap from the open end and be discharged from the air outlet 11 through the heat sink 5, thereby forming an active heat dissipation path. A detection hole 31 is provided on the heat spreader 3 for placing the temperature sensor to be calibrated. The outer shell 1 is made of lightweight and heat-resistant material, making the overall structure of this utility model compact and small in size.

[0020] Specifically, the heat spreader 3 is cylindrical and coaxial with the outer shell 1. The detection hole 31 extends inward from the end of the heat spreader 3 near the open end along the axis of the heat spreader 3, thereby ensuring that the temperature sensor in the detection hole 31 is heated evenly.

[0021] The heat exchanger 7 includes a bottom contact plate 71 and side fixing plates 72. The bottom contact plate 71 is a circular flat plate. Several side fixing plates 72 are vertically fixed to one side of the bottom contact plate 71. The heating part 4 is fixedly disposed on the other side of the bottom contact plate 71. The bottom contact plate 71 is attached and fixed to the end of the heat exchanger 3. The side fixing plates 72 are attached and fixed to the annular surface of the heat exchanger 3. Thus, the heating part 4 simultaneously heats the bottom and side of the heat exchanger 3 through the bottom contact plate 71 and the side fixing plates 72 to reduce the temperature difference between different parts of the heat exchanger 3.

[0022] Preferably, each of the edge fixing plates 72 is evenly distributed in a ring around the axis of the bottom contact plate 71, thereby further improving the temperature uniformity of the heat exchange block 3.

[0023] A motor 8 is fixedly installed outside the closed end. The output shaft of the motor 8 passes through the housing 1 and is connected to the fan 6, thereby fixing the position of the fan 6 inside the housing 1. The motor 8 is set corresponding to the air outlet 11. The fan 6 provides power to exhaust the air inside the housing 1 through the air outlet 11 to achieve rapid heat dissipation.

[0024] The temperature measuring unit 2, the motor 8, and the heating element 4 are all connected to an external control unit via wiring. The control unit can adjust the output power of the motor 8 or the heating element 4 based on the temperature of the heat exchange block 3 detected by the temperature measuring unit 2, thereby achieving autonomous control of heating and cooling.

[0025] A limiting bracket 9 is also provided between the fan 6 and the heat sink 5. The limiting bracket 9 is fixedly installed on the inner wall of the outer casing 1. The heat sink 5 is fixedly connected to the limiting bracket 9, thereby limiting and fixing the heat sink 5 and leaving sufficient airflow space for the fan 6.

[0026] Generally, the heat sink 5 includes a bonding plate 51 and a plurality of heat sinks 52. The heat sinks 52 are arranged in parallel and are vertically fixed on one side of the bonding plate 51. The other side of the bonding plate 51 is bonded and fixedly connected to the heating part 4. A heat dissipation gap is formed between adjacent heat sinks 52. The heat dissipation gap increases the commutation area, thereby realizing heat dissipation operation.

[0027] The limiting frame 9 is also provided with a flow hole 91, which corresponds to the heat dissipation gap. The heat dissipation air flowing in the heat dissipation gap enters the area of ​​the fan 6 through the flow hole 91 and is quickly discharged through the air outlet 11, thereby increasing the air flow speed in the heat dissipation gap and accelerating the heat dissipation effect.

[0028] Preferably, a passage gap is provided between the edge of the bonding plate 51 and the inner wall of the outer shell 1, so that the air around the heat dissipation block 3 can quickly enter the area of ​​the heat sink 5 through the passage gap, and be quickly discharged from the air outlet 11 through the heat dissipation gap and the flow hole 91, thereby improving the cooling rate of this utility model.

[0029] Preferably, the cross-section of the outer shell 1 is generally set as a square. When it is coaxially arranged with the heat spreader 3 with a circular cross-section, it can ensure that there is a sufficiently large annular flow gap between the outer shell 1 and the heat spreader 3 to achieve rapid cooling.

[0030] Specifically, the heating element 4 generates heat, which is rapidly conducted to the heat spreader 3 through the heat spreader pipe 7. Because the side fixing plates 72 of the heat spreader pipe 7 are evenly arranged, and the bottom contact plate 71 is fully in contact with the bottom of the heat spreader 3, the temperature deviation problem caused by traditional multi-heating wire heating can be effectively avoided. Through the efficient heat conduction and uniform distribution characteristics of the heat spreader pipe 7, heat is evenly distributed to all areas of the heat spreader 3, ensuring temperature consistency on the plane where the detection hole 31 is located. Simultaneously, the temperature sensing element collects the temperature data of the heat spreader 3 in real time, and the control system adjusts the heating source power according to the target temperature to achieve precise temperature control.

[0031] When the temperature of the heat exchanger 3 reaches the calibration target or needs to be cooled down, the airflow generated by the fan 6 forms a directional air duct through the air outlet 11, which quickly exhausts the air around the heat sink 5 that is in contact with the heating part 4. The heat sink 5 quickly dissipates the excess heat of the heating part 4 by increasing the heat dissipation area. Combined with the forced air cooling of the fan 6, the heat source is directly cooled, avoiding the problem of temperature control lag caused by the accumulation of heat in the heat exchanger 3. This ensures that the temperature of the heat exchanger 3 quickly stabilizes to the target range and improves the temperature control efficiency.

[0032] This invention optimizes the heat transfer structure, eliminates the problem of uneven temperature distribution caused by inconsistent heating element temperatures and indirect heat conduction, improves the temperature consistency of the heating surface, and ensures calibration accuracy. The fan 6 enables active heat dissipation, changing the existing passive heat dissipation mode for terminal temperature equalization components, realizing directional heat dissipation of the heat source, shortening the cooling response time, and improving the efficiency of heating and cooling control.

[0033] Meanwhile, this utility model reduces redundant components through a compact structural design, solving the problems of large size and insufficient portability of existing equipment, and adapting to the deployment needs of narrow outdoor spaces; by directly adapting the equipment to the control unit with a mobile power supply, it eliminates dependence on mains power, improves the power supply flexibility in outdoor scenarios without stable power sources such as photovoltaic and wind power stations, and expands the coverage of on-site calibration work.

[0034] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A dry-block furnace with a temperature-uniformity and heat dissipation structure, characterized in that, The device includes a housing and a temperature measuring unit. The housing is a tubular component with an open end and a closed end. Inside the housing, a heat spreader, a heating element, a heat sink, and a fan are arranged sequentially from the open end to the closed end. The temperature measuring unit is embedded in the heat spreader, which is located inside the heat spreader tube. The heating element is located at the bottom of the heat spreader tube. An air outlet is provided through the side wall of the housing near the closed end. An annular flow gap is provided between the inner wall of the housing and the heat spreader. A detection hole is provided on the heat spreader for placing a temperature sensor to be calibrated.

2. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 1, characterized in that, The heat exchange block is cylindrical and coaxial with the outer shell. The detection hole extends inward from the end of the heat exchange block near the open end along the axis of the heat exchange block.

3. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 2, characterized in that, The heat exchanger includes a bottom contact plate and side fixing plates. The bottom contact plate is a circular flat plate. Several side fixing plates are vertically fixed to one side of the bottom contact plate. The heating part is attached and fixed to the other side of the bottom contact plate. The bottom contact plate is attached and fixed to the end of the heat exchanger block. The side fixing plates are attached and fixed to the annular surface of the heat exchanger block.

4. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 3, characterized in that, Each of the aforementioned edge fixing plates is evenly distributed in a ring around the axis of the bottom contact plate.

5. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 2, characterized in that, A motor is fixedly installed outside the closed end, and the output shaft of the motor passes through the housing and is connected to the fan. The motor is positioned corresponding to the air outlet.

6. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 5, characterized in that, The temperature measuring unit, the motor, and the heating element are all connected to an external control unit via wiring.

7. The dry-block furnace with a uniform temperature and heat dissipation structure as described in claim 5, characterized in that, A limiting bracket is also provided between the fan and the heat sink. The limiting bracket is fixedly installed on the inner wall of the housing, and the heat sink is fixedly connected to the limiting bracket.

8. The dry-block furnace with a uniform temperature and heat dissipation structure as described in claim 7, characterized in that, The heat sink includes a bonding plate and several heat dissipation plates. The heat dissipation plates are arranged in parallel and are vertically fixed on one side of the bonding plate. The other side of the bonding plate is bonded and fixedly connected to the heating part, and a heat dissipation gap is formed between adjacent heat dissipation plates.

9. The dry-block furnace with a uniform temperature and heat dissipation structure as described in claim 8, characterized in that, The limiting frame is also provided with a flow hole, which is provided corresponding to the heat dissipation gap. The heat dissipation air flowing in the heat dissipation gap passes through the flow hole to the fan and is discharged from the air outlet.

10. The dry block furnace with a uniform temperature and heat dissipation structure as described in claim 9, characterized in that, A passage gap is provided between the edge of the bonding plate and the inner wall of the outer shell.

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