Novel drying oven tuyere structure

Abstract

The utility model discloses a novel oven tuyere structure and relates to the technical field of oven tuyere design, the novel oven tuyere structure comprises a static pressure box and a fan which are communicated with each other, an upper tuyere piece and a lower tuyere piece are arranged on the air guide side of the static pressure box, air guide ports of the static pressure box are communicated with the upper tuyere piece and the lower tuyere piece respectively, and a lateral air outlet cavity of an oven is arranged between the upper tuyere piece and the lower tuyere piece; the air nozzle assembly has the technical advantages that the air nozzle is separated from the base part, and an air outlet can be directly detached for cleaning operation during cleaning; the shape of the tuyere is redesigned, an original rectangular shape is changed into a triangular shape, the uniformity of an air outlet is further improved, the number of an upper group of tuyere pieces and a lower group of tuyere pieces is changed into a single group of four tuyeres from an original whole, and the form and parameters of each tuyere are finely controlled; the air nozzle is simple in structure, the air nozzle is connected through the spring hasp, and the sealing strip is arranged at the connecting position, so that the sealing performance is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of oven air nozzle design, and in particular to a novel oven air nozzle structure. Background Art

[0002] In the industrial production process of drying equipment and film stretching equipment, such as TDO, materials such as plastic films, paper, textiles, etc. must undergo a crucial drying step before processing. The purpose is to completely remove the moisture or solvent remaining on its surface or inside, so as to ensure that the materials can maintain ideal physical and chemical properties in the subsequent stretching, shaping, coating, lamination and other processes, and avoid quality problems caused by moisture or solvent residues, such as shrinkage, warping, blistering, decreased adhesion and other undesirable phenomena. In the traditional drying process design, the nozzle is a key component for hot air delivery and energy transfer. Its structural design, air outlet mode, wind speed, wind temperature and wind direction control are crucial to the overall drying effect. The design of the nozzle not only determines the uniformity of hot air distribution in the drying room space, but also directly affects whether the material can quickly, evenly and efficiently discharge moisture or solvent, and whether the material can be damaged by local overheating. The shape, size, arrangement of the nozzle outlet, and the distance and angle with the material need to be carefully designed according to the specific material characteristics and drying requirements.

[0003] The traditional air nozzle is welded and installed as a whole. Since the cleaning of the air nozzle in case of blockage or foreign matter in the equipment is not considered, this structure has little impact under the premise of good working conditions in the front section. When there are foreign matter in the front section or foreign matter is generated in the oven (such as slurry shedding, waste edges), it is very troublesome for the operator to clean the air nozzle and the air chamber; and the workload of removing the entire air nozzle is large, and the frequent removal of the fastener connection method will also affect the stability of the air nozzle, and then affect the quality of the diaphragm and reduce the yield rate; in addition, the consistency of the parameters (wind speed, temperature) of the traditional air nozzle has also been criticized, and the process requires differentiated control of the parameters of each air nozzle in the unit, which cannot be achieved. Utility Model Content

[0004] This device provides a new type of oven air nozzle structure, and the specific implementation is as follows:

[0005] A novel oven air nozzle structure, comprising:

[0006] The static pressure box and the fan are connected to each other, the air guide side of the static pressure box is provided with an upper air nozzle and a lower air nozzle, the air guide port of the static pressure box is connected to the two respectively, and the lateral air outlet cavity of the oven is set between the upper air nozzle and the lower air nozzle;

[0007] The upper air nozzle piece and the lower air nozzle piece have similar structures, the difference is that the two are vertical mirror-image structures of each other. Taking the upper air nozzle piece as an example, its inner air outlet surface is set as an expanded diameter inclined surface, and the diameter size of the lateral air outlet cavity is adjusted by the distance relationship with the fan, so that it is used for air outlet compensation to achieve uniform air outlet.

[0008] Based on the above technical solution, the lateral air outlet cavity of the air nozzle is designed to be in an expanded diameter shape, that is, the shape of the air outlet cavity gradually increases in diameter from the side close to the air guide port to the side far from the air guide port. The expanded diameter air outlet cavity can make the hot air gradually spread out in the process of leaving the air nozzle, forming a larger coverage area, effectively avoiding local overheating or insufficient drying; through the expanded diameter design, the air nozzle can better guide and utilize the energy of the hot air, reduce unnecessary energy loss, and the uniform hot air distribution is also conducive to the smooth progress of the subsequent stretching and shaping processes, reducing product quality problems caused by uneven drying, and improving product quality and consistency.

[0009] Preferably, the upper air nozzle member is provided with a plurality of mutually independent air nozzles along its width direction, the overall outline of each air nozzle is a right-angled triangle structure, and the inclined wall end faces the lateral air outlet cavity.

[0010] Preferably, the diameter of the lateral air outlet cavity on the side close to the fan is smaller than the diameter of the side away from the fan.

[0011] Based on the above technical solution, the nozzle is changed from the original integral structure to a group of four independent nozzle structures. The core of this design change is that each nozzle can be independently controlled and adjusted, thereby realizing the refined management of the nozzle's air outlet form and parameters; for example, by setting the different angles and air outlet intensities of the four independent nozzles, the coverage and intensity of the hot air on the material surface can be more accurately controlled, effectively avoiding the problem of hot air concentration or lack, and promoting all-round uniform drying of the material; maintenance is more convenient, when a nozzle fails or needs maintenance, only the nozzle needs to be processed, which will not affect the normal operation of other nozzles, thereby improving the availability and pertinence of the equipment.

[0012] Preferably, an air inlet communicating with the air guide port of the static pressure box is provided on the side of the air nozzle, and the interior of the air nozzle is a cavity structure, and a corresponding mesh plate for flow equalization can be arranged in the cavity.

[0013] Preferably, the air nozzle is provided with a plurality of one-side conductive air outlets equidistantly along its length direction, and the air outlets face the lateral air outlet cavity.

[0014] Based on the above technical solution, the static pressure box plays a role in stabilizing pressure and diverting flow, ensuring that the airflow pressure entering each independent air nozzle is uniform and consistent, thereby achieving balanced airflow distribution; the airflow in the static pressure box flows to each independently set air nozzle through the pipe; this design ensures that the airflow received by each air nozzle not only has the same pressure, but also has a relatively balanced flow distribution, thereby ensuring the uniformity of airflow during the drying or heating process at the source.

[0015] Preferably, the air nozzle includes a split base portion and an air outlet cover, which are connected by a lock.

[0016] Preferably, a sealing gasket is provided between the joint surface of the base portion and the air outlet cover.

[0017] Preferably, a plurality of buckle hooks are provided on the side of the base portion, and a number of spring buckle seats equal to the number of the buckle hooks are provided on the side of the air outlet cover, and the buckle hooks are overlapped with the spring buckle seats.

[0018] Based on the above technical solution, the spring buckle realizes the convenient disassembly and assembly between the air nozzle and the base. In traditional equipment, the air nozzle and the base are often fixedly connected, which means that the operator often needs to spend more time and energy during cleaning and maintenance, and may even affect the overall structure of the equipment. The air nozzle design connected with a spring buckle makes it easy to separate the air nozzle from the base. During daily cleaning and maintenance, you only need to gently press the spring buckle to remove the air nozzle from the base without disassembling the entire equipment. This greatly simplifies the cleaning process and improves work efficiency, while also reducing the difficulty and cost of maintenance.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. The utility model separates the air nozzle from the base, and the air outlet can be directly removed for cleaning;

[0021] 2. The utility model redesigns the shape of the air nozzle, changing the original "rectangle" into a "triangle", so that the uniformity of the air outlet is further improved;

[0022] 3. The number of upper and lower groups of tuyere parts in the utility model is changed from the original whole to a single group of 4 tuyere parts, and the form and parameters of each tuyere are finely controlled;

[0023] 4. The utility model has a simple structure, the connection mode of the air nozzle adopts a spring buckle, and a sealing strip is arranged at the connection to ensure the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the prior art;

[0025] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0027] Figure 4 It is a structural schematic diagram of the upper air nozzle member in the utility model;

[0028] Figure 5 It is a cross-sectional view of the upper nozzle structure of the utility model in the working state;

[0029] Figure 6 It is a cross-sectional view of the upper nozzle structure of the utility model in a split state.

[0030] Description of reference numerals:

[0031] 1. static pressure box, 2. fan, 3. upper air nozzle, 4. lower air nozzle, 5. lateral air outlet cavity, 301. air nozzle, 302. air inlet, 303. air outlet, 304. spring buckle seat, 305. buckle hook, 3011. base, 3012. air outlet cover. DETAILED DESCRIPTION

[0032] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0033] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0034] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The embodiment of the present application discloses a novel oven air nozzle structure.

[0037] Example 1

[0038] Reference Figures 2 to 4The present embodiment discloses a novel oven air nozzle structure, comprising a static pressure box 1 and a fan 2 which are connected to each other, an upper air nozzle piece 3 and a lower air nozzle piece 4 are arranged on the air guide side of the static pressure box 1, the air guide port of the static pressure box 1 is respectively connected to the two, and a lateral air outlet cavity 5 of the oven is arranged between the upper air nozzle piece 3 and the lower air nozzle piece 4. In the present structure, the upper air nozzle piece 3 and the lower air nozzle piece 4 are similar in structure, except that the two are vertical mirror-image structures to each other. Taking the upper air nozzle piece 3 as an example, its inner air outlet surface is arranged as an enlarged diameter inclined surface, and the diameter of the lateral air outlet cavity 5 is adjusted by the distance relationship with the fan 2, so that it is used for air outlet compensation to achieve air outlet uniformity.

[0039] The upper air nozzle member 3 is arranged along its width direction to form a plurality of mutually independent air nozzles 301, and the overall contour of each air nozzle 301 is a right-angled triangle structure, and its inclined wall end faces the lateral air outlet cavity 5. In this structure, the diameter of the lateral air outlet cavity 5 on the side close to the fan 2 is smaller than the diameter on the side away from the fan 2. An air inlet 302 communicating with the air guide port of the static pressure box 1 is provided on the side of the air nozzle 301, and the interior of the air nozzle 301 is a cavity structure. The air nozzle 301 is provided with a plurality of single-sided conductive air outlets 303 equidistantly along its length direction, and the air outlets 303 face the lateral air outlet cavity 5.

[0040] The specific implementation process is as follows: after starting the fan 2, the wind force required for drying is collected into the static pressure box 1 through the air duct system. The static pressure box 1 plays a role in stabilizing the airflow pressure and preliminarily distributing the airflow in this process, ensuring that the wind force is evenly and stably delivered to the upper air nozzle 3 and the lower air nozzle 4; inside the upper air nozzle 3 and the lower air nozzle 4, the wind force is continuously transported along the length direction, and the wind force distribution is further optimized at this time; during the process, the wind force is introduced into the lateral air outlet cavity 5 through each air outlet 303; the hot air is discharged outward from both sides of the cavity in the lateral air outlet cavity 5 with a balanced and sufficient force, so that every part of the drying material can fully contact the hot air, thereby improving the drying efficiency and the uniformity of material drying.

[0041] Example 2

[0042] Reference Figure 5 to Figure 6 Based on the above embodiments, this embodiment further discloses a novel oven air nozzle structure, the air nozzle 301 includes a split base portion 3011 and an air outlet cover 3012, which are connected by a lock. In this structure, a sealing gasket is provided between the joint surfaces of the base portion 3011 and the air outlet cover 3012.

[0043] A plurality of buckle hooks 305 are disposed on the side of the base portion 3011 , and a number of spring buckle seats 304 equal to the number of the buckle hooks 305 are disposed on the side of the air outlet cover 3012 , and the buckle hooks 305 are overlapped with the spring buckle seats 304 .

[0044] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A novel oven air nozzle structure, characterized in that: include: A static pressure box (1) and a fan (2) are connected to each other, the air guide side of the static pressure box (1) is provided with an upper air nozzle (3) and a lower air nozzle (4), the air guide port of the static pressure box (1) is respectively connected to the two, and a lateral air outlet cavity (5) of the oven is provided between the upper air nozzle (3) and the lower air nozzle (4); The upper air nozzle (3) and the lower air nozzle (4) are in a vertical mirror-like structure with respect to each other. The inner air outlet surfaces of the upper air nozzle (3) and the lower air nozzle (4) are both arranged as enlarged diameter inclined surfaces. The diameter of the lateral air outlet cavity (5) is adjusted by the distance relationship with the fan (2) so that it is used for air outlet compensation to achieve uniform air outlet.

2. A novel oven air nozzle structure according to claim 1, characterized in that: The upper air nozzle member (3) is provided with a plurality of mutually independent air nozzles (301) along its width direction, and the overall outline of each air nozzle (301) is a right-angled triangle structure, and its inclined wall end faces the lateral air outlet cavity (5).

3. A novel oven air nozzle structure according to claim 2, characterized in that: The diameter of the lateral air outlet cavity (5) on the side close to the fan (2) is smaller than the diameter of the side away from the fan (2).

4. A novel oven air nozzle structure according to claim 3, characterized in that: An air inlet (302) communicating with the air guide port of the static pressure box (1) is provided on the side of the air nozzle (301), and the interior of the air nozzle (301) is a cavity structure.

5. A novel oven air nozzle structure according to claim 4, characterized in that: The air nozzle (301) is provided with a plurality of single-side conductive air outlets (303) at equal intervals along its length direction, and the air outlets (303) face the lateral air outlet cavity (5).

6. A novel oven air nozzle structure according to claim 5, characterized in that: The air nozzle (301) comprises a split base portion (3011) and an air outlet cover (3012), which are connected via a lock.

7. A novel oven air nozzle structure according to claim 6, characterized in that: A sealing gasket is provided between the joint surface of the base portion (3011) and the air outlet cover (3012).

8. The novel oven air nozzle structure according to claim 7 is characterized in that: The side of the base portion (3011) is provided with a plurality of buckle hooks (305), and the side of the air outlet cover (3012) is provided with a number of spring buckle seats (304) equal to the number of the buckle hooks (305), and the buckle hooks (305) are overlapped with the spring buckle seats (304).

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