High-efficiency air-blast electric heating box

Abstract

The utility model relates to the field of blast electric heating box discloses a kind of efficient blast electric heating box, including cabinet, the cabinet front side rotation is provided with cabinet door, the cabinet front side lower part is provided with control panel, the cabinet inner wall is provided with air outlet, the cabinet is close to the fixed ring of air outlet outside fixed connection, the fixed ring left and right sides are inserted with wind deflector cover, the wind deflector cover inner wall is provided with wind guide groove. In the utility model, by the wind deflector cover inner wall being provided with wind guide groove, outside is provided with multiple groups of air guide hole a, cooperation L shape structure design can be the hot air of air outlet evenly guided to each place in cabinet, avoid local temperature uneven, ensure sample heated evenly, improve the accuracy of experimental result, the lower part of the side of wind deflector cover close to fixed ring is designed as air inlet, in combination with the airflow guidance of wind guide groove, form more efficient air circulation, shorten heating time, improve the working efficiency of electric heating box.

Description

Technical Field

[0001] This utility model relates to the field of blower-heated electric boxes, and in particular to a high-efficiency blower-heated electric box. Background Technology

[0002] In the development of modern agriculture, pesticide component analysis is a crucial step in ensuring the quality and safety of agricultural products and regulating the pesticide market. In pesticide research and development and quality control, studying the stability of pesticide components under different conditions is of paramount importance.

[0003] High-efficiency blower-heated ovens can simulate various environments, including high temperature and constant temperature, creating precise conditions for component stability studies. By setting different temperature gradients and isothermal times, pesticide samples are processed, and combined with analytical techniques such as high-performance liquid chromatography (HPLC), the decomposition rate and trend of pesticide components at different temperatures can be accurately determined.

[0004] In most existing ordinary electric heating boxes, the heating elements (such as resistance wires and heating tubes) are mostly installed on the back or bottom of the box, and the air outlet is directly opened on the inner wall. There is no air guiding structure or only a simple grille. Hot air is blown out directly from the air outlet in one direction without a guiding design, which leads to reduced heating efficiency. Therefore, a high-efficiency blower electric heating box is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency blower electric heating box, which aims to improve the problem in the prior art that "the hot air of the traditional blower electric heating box is blown out directly in one direction, resulting in a reduction in heating efficiency".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency blower electric heating box, comprising a box body, a box door rotatably provided on the front side of the box body, a control panel provided on the lower part of the front side of the box body, an air outlet provided on the inner wall of the box body, a fixing ring fixedly connected to the outer side of the box body near the air outlet, air guide hoods inserted into both the left and right sides of the fixing ring, an air guide groove provided on the inner wall of the air guide hood, multiple sets of support members fixedly connected to the outer side of the air guide hood, a placement rack mounted on the outer side of the support members, and multiple sets of air guide holes a penetrating through the outer side of the air guide hood.

[0007] As a further description of the above technical solution:

[0008] A movable plate is slidably connected to the inner wall of the air guide shroud. An air guide hole b is opened through the outer side of the movable plate. An adjusting bolt is rotatably connected to the upper part of the movable plate, and the adjusting bolt is threadedly connected to the inner wall of the air guide shroud.

[0009] As a further description of the above technical solution:

[0010] The air guide cover is inserted into one-third of the fixed ring.

[0011] As a further description of the above technical solution:

[0012] The air guide cover is designed in an L-shape.

[0013] As a further description of the above technical solution:

[0014] The movable plate is configured in an L-shape.

[0015] As a further description of the above technical solution:

[0016] The air guide hole a and air guide hole b have the same shape.

[0017] As a further description of the above technical solution:

[0018] The lower part of the air guide shroud near the fixing ring is set as an air inlet.

[0019] As a further description of the above technical solution:

[0020] The air guide cover is fixedly installed on the inner wall of the box by bolts, and a torsion cap is fixedly connected to the upper part of the adjusting bolt.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by opening an air guide groove on the inner wall of the air guide hood and setting multiple sets of air guide holes a on the outer side, combined with the L-shaped structure design, the hot air from the air outlet can be evenly guided to all parts of the box, avoiding uneven local temperature, ensuring uniform heating of the sample, and improving the accuracy of experimental results. The lower part of the side of the air guide hood near the fixing ring is set as the air inlet. Combined with the airflow guidance of the air guide groove, a more efficient air circulation is formed, shortening the heating time and improving the working efficiency of the electric heating box.

[0023] 2. In this utility model, the movable plate, which is slidably connected to the inner wall of the air guide hood, has an air guide hole b. The position of the movable plate can be controlled by adjusting the bolts, thereby changing the alignment between the air guide hole a and the air guide hole b, and thus adjusting the air volume. This design allows for flexible adjustment of the air speed according to the processing requirements of different samples in pesticide component analysis (such as temperature gradient and isothermal time), enhancing the applicability of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of the overall device in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the disassembled integral device in this utility model;

[0027] Figure 4 This is a front-view three-dimensional cross-sectional view of the air guide shroud in this utility model.

[0028] Legend:

[0029] 1. Cabinet; 2. Cabinet door; 3. Control panel; 4. Air outlet; 5. Fixing ring; 6. Air guide cover; 7. Support component; 8. Placement rack; 9. Air guide hole a; 10. Air guide channel; 11. Moving plate; 12. Air guide hole b; 13. Adjusting bolt. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3 This utility model provides an embodiment of a high-efficiency blower-heated electric heating box, comprising a box body 1 as the main body of the equipment. The inner liner is made of corrosion-resistant material such as 316L stainless steel or Teflon coating. The interior houses components such as air outlet 4 and air guide hood 6. The exterior supports the box door 2 and control panel 3, forming a sealed heating space. An exhaust pipe is provided at the top. The box door 2 is rotatably installed on the front side of the box body 1. A sealing element is provided between the box body 1 and the box door 2. The box door 2 is rotatably connected to the box body 1 by a hinge. When closed, it forms a sealed structure with the box body 1 to prevent heat loss and the entry of external impurities. When open, it facilitates the placement or removal of sample containers. The control panel 3 is provided at the lower front side of the box body 1, integrating a temperature sensor, control chip and operating interface. Users can set parameters such as target temperature, wind speed, and constant temperature time, and display the actual temperature inside the box in real time to achieve precise temperature control.

[0032] Reference Figures 2-4The inner wall of the housing 1 is provided with an air outlet 4. Heating elements such as resistance wires and a blower are installed at the bottom of the housing 1. Heated air is discharged through the blower, serving as the starting point for hot air circulation. This is an existing structure, achievable by those skilled in the art, and therefore will not be described in detail in this case. A fixing ring 5 is fixedly connected to the outer side of the housing 1 near the air outlet 4 to support the air guide shroud 6. Air guide shrouds 6 are inserted into both sides of the fixing ring 5. The air guide shrouds 6 are fixedly installed on the inner wall of the housing 1 with bolts. The air guide shrouds 6 are L-shaped to change the direction of the hot air flow from the air outlet 4, from vertical to horizontal, in conjunction with the air guide groove 10 and... The air guide hole a9 evenly disperses the airflow to different areas inside the chamber to avoid local overheating. The lower part of the air guide hood 6 near the fixing ring 5 is set as the air inlet. The inner wall of the air guide hood 6 is provided with an air guide groove 10 to guide the hot air to flow along a preset trajectory, so that the airflow passes through the air guide hole a9 at a uniform speed. Multiple sets of support members 7 are fixedly connected to the outside of the air guide hood 6. They are made of corrosion-resistant metals such as 304 stainless steel or engineering plastics to provide rigid support for the placement rack 8 and have a strong load-bearing capacity. The placement rack 8 is mounted on the outside of the support member 7. It is set as a grid to allow the hot air to penetrate and contact the sample. Multiple sets of air guide holes a9 are opened through the outside of the air guide hood 6 to exhaust the hot airflow.

[0033] Reference Figures 2-4 A movable plate 11 is slidably connected to the inner wall of the air guide shroud 6. The movable plate 11 is L-shaped and slides with the inner wall of the air guide shroud 6, covering the area of ​​the air guide hole a9. When it moves, it changes the overlapping area of ​​the air guide hole b12 and the air guide hole a9. The outer side of the movable plate 11 has an air guide hole b12. The air guide hole a9 and the air guide hole b12 have the same shape. The air volume is controlled by the degree of alignment with the air guide hole a9: the air volume is the largest when it is fully aligned and the air volume is reduced when it is misaligned. An adjusting bolt 13 is rotatably connected to the upper part of the movable plate 11. A torsion cap is fixedly connected to the upper part of the adjusting bolt 13. When the torsion cap rotates, it drives the movable plate 11 to move up and down through the threaded transmission to realize the air volume adjustment. The adjusting bolt 13 is threadedly connected to the inner wall of the air guide shroud 6. The air guide shroud 6 is inserted into one-third of the fixed ring 5.

[0034] Working Principle: During use, the user sets the target temperature and constant temperature time through the control panel 3, and starts the heating element and blower to heat the air inside the chamber. After the heating element heats the air, it is discharged by the blower through the air outlet 4, forming a high-speed hot airflow. After being discharged from the air outlet 4, part of the hot airflow enters the air inlet of the air guide shroud 6 on both sides of the fixing ring 5. The air guide shroud 6 has an L-shaped structure, which turns the vertical hot airflow into the horizontal direction. At the same time, the air guide groove 10 on the inner wall of the air guide shroud 6 divides the airflow, making it spread evenly along the groove and avoiding turbulence. The hot airflow guided by the air guide groove 10 is blown out evenly through multiple sets of air guide holes a9 on the outside of the air guide shroud 6, covering the sample on the placement rack 8 and ensuring that the sample in each area is heated evenly.

[0035] The user rotates the torsion cap on the top of the adjusting bolt 13. The bolt, due to its threaded connection to the inner wall of the air guide shroud 6, moves up and down, causing the movable plate 11, which is rotatably connected to it, to slide synchronously. The movable plate 11 is L-shaped, with an air guide hole b12 on its outer side, the shape of which is completely identical to the air guide hole a9. When the movable plate 11 moves up and down, the alignment of the air guide hole b12 with the air guide hole a9 changes: when completely aligned, the airflow channel is fully open, and the airflow is at its maximum; when partially misaligned, the overlapping area of ​​the air guide holes decreases, and the airflow decreases accordingly. For different pesticide samples with varying thermal stability requirements: for temperature-sensitive samples, reduce the airflow to lower the hot air velocity and avoid localized overheating; for samples requiring rapid heating, increase the airflow to enhance heat exchange efficiency.

[0036] The inner liner of the chamber 1 is made of 316L stainless steel or Teflon coating to resist corrosion from acids, alkalis and organic solvents in pesticide extracts and prevent metal ion precipitation from affecting the sample. The air guide 6, support components 7 and other parts are made of corrosion-resistant materials to extend the service life of the equipment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-efficiency blower electric heating box, comprising a box body (1), characterized in that: The box (1) has a rotating door (2) on the front side, a control panel (3) on the lower front side of the box (1), an air outlet (4) on the inner wall of the box (1), a fixing ring (5) fixedly connected to the outer side of the box (1) near the air outlet (4), and air guide covers (6) inserted on both sides of the fixing ring (5). An air guide groove (10) is opened on the inner wall of the air guide cover (6), and multiple sets of support members (7) are fixedly connected to the outer side of the air guide cover (6). A placement rack (8) is mounted on the outer side of the support member (7), and multiple sets of air guide holes a (9) are opened through the outer side of the air guide cover (6).

2. The high-efficiency blower electric heating box according to claim 1, characterized in that: The inner wall of the air guide cover (6) is slidably connected to a movable plate (11), and an air guide hole b (12) is opened through the outer side of the movable plate (11). An adjusting bolt (13) is rotatably connected to the upper part of the movable plate (11), and the adjusting bolt (13) is threadedly connected to the inner wall of the air guide cover (6).

3. The high-efficiency blower electric heating box according to claim 1, characterized in that: The air guide cover (6) is inserted into one-third of the fixed ring (5).

4. The high-efficiency blower electric heating box according to claim 1, characterized in that: The air guide shroud (6) is configured in an L-shape.

5. A high-efficiency blower-heated electric heating box according to claim 2, characterized in that: The movable plate (11) is configured in an L shape.

6. The high-efficiency blower electric heating box according to claim 2, characterized in that: The air guide hole a (9) has the same shape as the air guide hole b (12).

7. The high-efficiency blower electric heating box according to claim 1, characterized in that: The air inlet is located on the lower part of the side of the air guide shroud (6) near the fixing ring (5).

8. The high-efficiency blower electric heating box according to claim 2, characterized in that: The air guide cover (6) is fixedly installed on the inner wall of the box (1) by bolts, and a torsion cap is fixedly connected to the upper part of the adjusting bolt (13).

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