A hot air circulating bellow based on temperature zone control

Abstract

This utility model discloses a hot air circulating air box based on temperature zone control, including a circulating air box and a second slope plate. The circulating air box has two chambers. Two air inlet pipes are provided, each connected to one of the two chambers within the circulating air box. Each air inlet pipe has a conveying pipe connected to its end face away from the circulating air box, and a connecting channel is provided between adjacent air inlet pipes. This utility model not only provides a connecting channel, air inlet pipes, and conveying pipes on the circulating air box, but also allows the connecting channel to transfer redundant heat energy from the low-temperature zone to the high-temperature zone during the opening and closing of the air inlet pipes, reducing heat energy waste in the low-temperature zone. Simultaneously, a first slope plate and a second slope plate are provided on one side of the circulating air box for the movement of the drying tray. The sides of the first slope plate and the second slope plate are designed in an equilateral trapezoidal shape, facilitating the movement of the drying tray while reducing the probability of the drying tray slipping when the circulating air box is opened.

Description

Technical Field

[0001] This utility model relates to the field of hot air circulation box technology, specifically a hot air circulation box based on temperature zone control. Background Technology

[0002] The hot air circulation box based on temperature zone control can be used to dehydrate and dry various objects, such as vegetables, Chinese herbal medicines, and fruits.

[0003] Current hot air circulating boxes based on temperature zone control use a fan-driven air circulation system, ensuring uniform and efficient airflow. The air source is a circulating fan motor (using a contactless switch) that drives the impeller through the heater, delivering hot air to the oven chamber. Used air is then drawn back into the duct for recirculation and heating, ensuring uniform indoor temperature. When temperature fluctuations occur due to door opening and closing, the air circulation system quickly returns to normal operation until the set temperature is reached. During operation in temperature zone control mode, low-temperature zones are prone to thermal redundancy, leading to reduced overall energy efficiency and energy waste. Utility Model Content

[0004] The purpose of this invention is to provide a hot air circulation box based on temperature zone control, so as to solve the problem mentioned in the background art that the hot air circulation box based on temperature zone control is prone to heat redundancy in the low temperature zone during operation in the temperature zone control mode, resulting in reduced overall energy efficiency and energy loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot air circulation box based on temperature zone control, comprising a circulation box, an air inlet pipe, a conveying pipe, a connecting channel, an auxiliary inlet structure, a first slope plate, a connecting horizontal plate, and a second slope plate; the circulation box has two chambers; two air inlet pipes are provided, and the two air inlet pipes are connected to the two chambers in the circulation box; the end faces of the air inlet pipes away from the circulation box are each connected to a conveying pipe; a connecting channel is provided between two adjacent air inlet pipes; the air inlet pipes, the connecting channel, the conveying pipes, and the circulation box are connected; the auxiliary inlet structure is connected inside the circulation box, and the auxiliary inlet structure includes a first slope plate disposed outside the circulation box; a connecting horizontal plate is connected to one side of the first slope plate inside the circulation box; and a second slope plate is connected to the end of the connecting horizontal plate away from the first slope plate.

[0006] Preferably, both the first slope plate and the second slope plate are designed with an incline, and the highest points of both the first slope plate and the second slope plate are connected to the end side of the connecting horizontal plate.

[0007] Preferably, the circulating air box is equipped with two sets of temperature controllers, which are respectively connected to two chambers inside the circulating air box and extend to the outside of the circulating air box.

[0008] Preferably, a movable drying tray is slidably connected inside the circulating air box, and the bottom of the movable drying tray has rollers for sliding.

[0009] Preferably, both sides of the circulating air box are connected to sealing doors for closing the circulating air box.

[0010] Preferably, a heating element is provided inside the circulating air box, and the heating element is distributed on the side and bottom inside the circulating air box.

[0011] Preferably, air outlets are provided on both sides of the circulating air box, and the air outlets are connected to the inside of the circulating air box.

[0012] Preferably, the end of the air outlet away from the circulating air box is fitted with a perforated circular plate for supplying water vapor discharge.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This hot air circulating air box based on temperature zone control not only has a connecting channel, an air inlet pipe, and a conveying pipe on the circulating air box, but also, during use, the connecting channel will transfer the redundant heat energy in the low temperature zone to the high temperature zone by opening and closing the air inlet pipe, thus reducing the waste of heat energy in the low temperature zone; at the same time, a first slope plate and a second slope plate are provided on one side of the circulating air box for the moving drying tray to move up and down. The sides of the first slope plate and the second slope plate are designed in the shape of an equilateral trapezoid, which facilitates the entry and exit of the moving drying tray while reducing the probability of the moving drying tray slipping off when the circulating air box is opened. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the separation structure of the movable drying tray and the circulating air box of this utility model;

[0016] Figure 3 This is a front view structural diagram of the circulating air box of this utility model;

[0017] Figure 4 This is a side view of the internal structure of the circulating air box of this utility model.

[0018] In the picture:

[0019] 1. Circulating air box; 11. Air outlet; 12. Sealing door; 13. Heating element; 14. Temperature controller;

[0020] 2. Intake pipe; 21. Connecting channel; 22. Delivery pipe;

[0021] 3. Auxiliary cavity inlet structure; 31. First slope plate; 32. Connecting horizontal plate; 33. Second slope plate;

[0022] 4. Moving drying tray. Detailed Implementation

[0023] 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.

[0024] Example 1: As Figure 1-4 As shown, a hot air circulating air box based on temperature zone control includes a circulating air box 1, an air inlet pipe 2, a conveying pipe 22, a connecting channel 21, an auxiliary inlet structure 3, a first slope plate 31, a connecting cross plate 32, and a second slope plate 33. The circulating air box 1 has two chambers. The circulating air box 1 is made of angle steel, stainless steel plate, and cold-rolled steel plate. The insulation layer of the circulating air box 1 is filled with high-density aluminum silicate cotton. The high-density aluminum silicate cotton ensures the insulation of the oven and also ensures the safety of the user. At the same time, a digital display intelligent instrument is also installed on the outside of the circulating air box 1 to control the temperature. The two chambers are separated by an insulation partition.

[0025] To increase the recycling of resources, two air inlet pipes 2 are provided, which are connected to two chambers in the circulating air box 1 to circulate the heat at the top of the circulating air box 1. The end face of the air inlet pipes 2 away from the circulating air box 1 is connected to a conveying pipe 22, and each conveying pipe 22 has a gas valve to control whether the heat is circulated. A connecting channel 21 is provided between two adjacent air inlet pipes 2, and the air inlet pipes 2, the connecting channel 21, the conveying pipes 22 and the circulating air box 1 are connected.

[0026] Specifically, will Figure 1The two chambers are designated as a and b. When the temperatures of chambers a and b are synchronized, the gas is circulated synchronously at the bottom of chambers a and b through the gas valve in the delivery pipe 22. When chamber a is in a low-temperature zone, the gas valve in the delivery pipe 22 at the position of chamber a will close, controlling the gas valve in the delivery pipe 22 at the position of chamber b to operate. Then, the gas at the top of chamber a and the top of chamber b will be synchronously circulated through the delivery pipe 22 to the bottom of chamber b for heat circulation. Similarly, when chamber b is in a low-temperature zone, the operation is reversed. The specific circulation requirements are selected according to the operator's specific operation.

[0027] A movable drying tray 4 is slidably connected inside the circulating air box 1. The movable drying tray 4 is used to place the object to be baked. The bottom of the movable drying tray 4 is equipped with rollers for sliding, which facilitates the movement of the movable drying tray 4.

[0028] In order to facilitate the movement of the drying tray 4 into and out of the chamber of the circulating air box 1, an auxiliary inlet structure 3 is connected inside the circulating air box 1. The auxiliary inlet structure 3 includes a first slope plate 31, a connecting horizontal plate 32, and a second slope plate 33.

[0029] It should be noted that the first slope plate 31 is detachably connected to one side of the circulating air box 1. The side of the first slope plate 31 located inside the circulating air box 1 is connected to a connecting horizontal plate 32. The bottom of the connecting horizontal plate 32 and the bottom of the chamber of the circulating air box 1 are detachably connected by bolts, etc. The end of the connecting horizontal plate 32 away from the first slope plate 31 is detachably connected to a second slope plate 33.

[0030] Both the first slope plate 31 and the second slope plate 33 are designed with an incline. The highest points of both the first slope plate 31 and the second slope plate 33 are connected to the end side of the connecting horizontal plate 32. The incline design facilitates cooperation with the rollers at the bottom of the moving drying tray 4. Figure 4 As shown, the first slope plate 31, the connecting horizontal plate 32, and the second slope plate 33 are designed vertically. When the moving drying tray 4 passes the first slope plate 31, it is pushed into the circulating air box 1 by gravity at the positions of the connecting horizontal plate 32 and the second slope plate 33. If the moving drying tray 4 wants to leave the circulating air box 1, it needs to be pushed by external force. Therefore, the second slope plate 33 restricts the moving drying tray 4, reducing the phenomenon of the moving drying tray 4 sliding down when the door of the circulating air box 1 is opened, and avoiding the phenomenon of injury to the staff when the moving drying tray 4 slides down.

[0031] Two sets of temperature controllers 14 are installed inside the circulating air box 1. These two sets of temperature controllers 14 are connected to two chambers within the circulating air box 1 and extend outside the circulating air box 1. The core function of each temperature controller 14 is to convert temperature changes into quantifiable signals, such as displacement, voltage, resistance, or radiation intensity, which are then converted into temperature values ​​using physical laws and electronic technology. When selecting a model, accuracy, measuring range, response speed, and environmental conditions must be considered. The above refers to existing technology and will not be elaborated further below. Furthermore, when selecting a model, a model suitable for the equipment should be chosen.

[0032] The overall effect of this embodiment is that, during use, the circulating air box 1 is constructed of angle steel, stainless steel plate, and cold-rolled steel plate. The insulation layer of the circulating air box 1 is filled with high-density aluminum silicate cotton, which ensures the insulation performance of the oven and also guarantees the safety of the user. A digital display intelligent instrument is also installed on the outside of the circulating air box 1 to control the temperature. The two chambers are separated by an insulation partition, and the sloping design of the first slope plate 31 and the second slope plate 33 facilitates cooperation with the rollers at the bottom of the moving drying tray 4. Figure 4 As shown, the first slope plate 31, the connecting horizontal plate 32, and the second slope plate 33 are designed vertically. When the movable drying tray 4 passes the first slope plate 31, it is pushed into the circulating air box 1 by gravity at the positions of the connecting horizontal plate 32 and the second slope plate 33. If the movable drying tray 4 wants to leave the circulating air box 1, it needs external force to push it. Therefore, the second slope plate 33 restricts the movable drying tray 4, reducing the phenomenon of it sliding down when the circulating air box 1 is opened, thus preventing injury to workers caused by the sliding of the movable drying tray 4. Figure 1 The two chambers are designated as a and b. When the temperatures of chambers a and b are synchronized, the gas is circulated synchronously at the bottom of chambers a and b through the gas valve in the delivery pipe 22. When chamber a is in a low-temperature zone, the gas valve in the delivery pipe 22 at the position of chamber a will close, controlling the gas valve in the delivery pipe 22 at the position of chamber b to operate. Then, the gas at the top of chamber a and the top of chamber b will be synchronously circulated through the delivery pipe 22 to the bottom of chamber b for heat circulation. Similarly, when chamber b is in a low-temperature zone, the operation is reversed. The specific circulation requirements are selected according to the operator's specific operation.

[0033] Example 2: Figure 1-4 As shown, a hot air circulation box based on temperature zone control is provided. Both sides of the circulation box 1 are connected to a sealing door 12 for sealing the circulation box 1. The sealing door 12 and the circulation box 1 are sealed by a sealing structure applicable to the prior art between the sealing door 12 and the circulation box 1.

[0034] A heating element 13 is provided inside the circulating air box 1. The heating element 13 is distributed on the side and bottom inside the circulating air box 1, and the heating element 13 can also be placed on the top inside the circulating air box 1.

[0035] The circulating air box 1 has air outlets 11 on both sides. The air outlets 11 are connected to the inside of the circulating air box 1. The end of the air outlet 11 away from the circulating air box 1 is fitted with a perforated circular plate for water vapor discharge. The air outlet 11 is used to discharge water vapor inside the circulating air box 1.

[0036] When using the above-mentioned Embodiments 1 and 2, it is important to note that after closing the air switch of the circulating oven, and setting the heating temperature to 250℃ and the over-temperature alarm temperature to 260℃ according to the oven's operating instructions, and after the circulating air box has been kept warm for 1 hour, its automatic operation program should be started. The indicator lights of the gas valve and heating element 13 in the conveying pipe 22 on one side of the circulating air box 1 should illuminate in sequence, indicating that the program is operating normally. If the temperature still does not reach the set value after 2.5 hours of heating, and the heating time is too long, the heated glass containers will become fragile, increasing the rate of broken bottles. This also results in energy waste and increased power consumption. Furthermore, the working cycle of the circulating air box 1 is lengthened, making it impossible to complete this process on time under a two-shift system in normal production, delaying the production schedule and increasing production costs. Normally, it takes 2.5 hours to heat the oven from room temperature to 250℃ when it is full, and one working cycle of the circulating air box takes approximately 6 hours.

[0037] Working Principle: When using this hot air circulating air box based on temperature zone control, an external power supply is required. Firstly, the circulating air box 1 is constructed from angle steel, stainless steel plates, and cold-rolled steel plates. The insulation layer of the circulating air box 1 is filled with high-density aluminum silicate cotton, which ensures the oven's insulation performance and user safety. Simultaneously, a digital display intelligent instrument is installed on the outside of the circulating air box 1 to control the temperature. The two chambers are separated by an insulation partition, and the inclined design of the first slope plate 31 and the second slope plate 33 facilitates cooperation with the rollers at the bottom of the moving drying tray 4. Figure 4 As shown, the first slope plate 31, the connecting horizontal plate 32, and the second slope plate 33 are designed vertically. When the movable drying tray 4 passes the first slope plate 31, it is pushed into the circulating air box 1 by gravity at the positions of the connecting horizontal plate 32 and the second slope plate 33. If the movable drying tray 4 wants to leave the circulating air box 1, it needs external force to push it. Therefore, the second slope plate 33 restricts the movable drying tray 4, reducing the phenomenon of it sliding down when the circulating air box 1 is opened, thus preventing injury to workers caused by the sliding of the movable drying tray 4. Figure 1The two chambers are designated as a and b. When the temperatures of chambers a and b are synchronized, the gas valve in the delivery pipe 22 operates, and the gas is simultaneously input and circulated at the bottom of chambers a and b. When chamber a is in a low-temperature zone, the gas valve in the delivery pipe 22 at the position of chamber a will close, controlling the gas valve in the delivery pipe 22 at the position of chamber b to operate, and then the gas at the top of chamber a and the top of chamber b will be simultaneously introduced into the bottom of chamber b through the delivery pipe 22 for heat circulation. Similarly, when chamber b is in a low-temperature zone, the operation is reversed. The specific circulation requirements are selected according to the specific operation of the operator, and finally the operation of the hot air circulation box based on temperature zone control is completed.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hot air circulating bellows based on temperature zone control, characterized in that, include: A circulating air box having two chambers; The air intake pipe has two sections, which are connected to two chambers inside the circulating air box. The end face of the air intake pipe away from the circulating air box is connected to a conveying pipe. A connecting channel is provided between two adjacent air intake pipes. The air intake pipe, the connecting channel, the conveying pipe and the circulating air box are connected. An auxiliary inlet structure is connected inside the circulating air box. The auxiliary inlet structure includes a first slope plate disposed outside the circulating air box. A connecting horizontal plate is connected to one side of the first slope plate inside the circulating air box, and a second slope plate is connected to the end of the connecting horizontal plate away from the first slope plate.

2. The hot air circulating bellow based on temperature zone control according to claim 1, characterized in that: Both the first and second slope plates are designed with an incline, and the highest points of both the first and second slope plates are connected to the end side of the connecting horizontal plate.

3. A hot air circulation box based on temperature zone control according to claim 2, characterized in that: The circulating air box is equipped with two sets of temperature controllers, which are respectively connected to two chambers inside the circulating air box and extend to the outside of the circulating air box.

4. The hot air circulating bellow based on temperature zone control according to claim 3, characterized in that: A movable drying tray is slidably connected inside the circulating air box, and the bottom of the movable drying tray is equipped with rollers for sliding.

5. The hot air circulating bellow based on temperature zone control according to claim 4, characterized in that: Both sides of the circulating air box are connected to sealing doors for closing the circulating air box.

6. The hot air circulating bellow based on temperature zone control according to claim 5, characterized in that: The circulating air box is equipped with heating elements, which are distributed on the sides and bottom inside the circulating air box.

7. The hot air circulating bellow based on temperature zone control according to claim 1, characterized in that: The circulating air box has air outlets on both sides, and the air outlets are connected to the inside of the circulating air box.

8. The hot-air circulating bellow based on the temperature zone control according to claim 7, characterized in that: The end of the air outlet away from the circulating air box is fitted with a perforated circular plate for supplying water vapor discharge.

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