Drier exhaust duct structure

Abstract

The utility model discloses a kind of exhaust pipe structures of drying machine, it is related to the field of fabric processing, and its technical scheme main points are as follows: including intercommunication horizontal section and inclined section, inclined section is set to be obliquely upward, the bottom end of inclined section is connected with the one end of horizontal section, the top end of inclined section is detachably connected with slow flow pipe, sleeve is fixedly connected in slow flow pipe, a plurality of exhaust ports are arranged on the lateral wall of sleeve and are penetrated, inclined section is communicated with outside through exhaust port, the one end of horizontal section close to inclined section is fixedly connected with dust removal pipe, the end of dust removal pipe is rotatably connected with sealing cover.In the utility model, the combination design of inclined section and slow flow pipe realizes the step type deceleration of airflow, improves fiber separation efficiency;Detachable slow flow pipe structure and bottom dust removal pipe make cleaning and maintenance more convenient;The application of wear-resistant coating prolongs service life.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing, and more specifically, it relates to a dryer exhaust pipe structure. Background Technology

[0002] In the finishing process of fabrics in the textile printing and dyeing industry, hot air dryers are key processing equipment, and their exhaust pipe structure directly affects the cleanliness of the production environment and the efficiency of heat energy utilization. Traditional dryer exhaust pipes typically adopt a straight-cylinder design, with metal pipes connecting the drying chamber to the external exhaust system, relying on the negative pressure generated by the fan to expel humid and hot air and suspended matter. However, when drying fabrics containing short fibers, such as cotton and wool, the high-speed airflow will carry fine particles such as lint and dust generated by fiber breakage into the exhaust pipe. Due to the smooth inner wall of the exhaust pipe and the uneven distribution of airflow velocity, these suspended matter easily accumulates at pipe bends and diameter changes, making cleaning the inside of the pipe inconvenient.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dryer exhaust pipe structure.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dryer exhaust pipe structure, comprising a horizontal section and an inclined section connected to each other, the inclined section being obliquely upward, the bottom end of the inclined section being connected to one end of the horizontal section, the top end of the inclined section being detachably connected to a flow-slowing pipe, a sleeve being fixedly connected inside the flow-slowing pipe, a gap being provided between the outer side wall of the sleeve and the inner side wall of the flow-slowing pipe, a plurality of exhaust ports being provided through the side wall of the sleeve, the inclined section being connected to the outside through the exhaust ports, a dust removal pipe being fixedly connected to one end of the horizontal section near the inclined section, a sealing cap being rotatably connected to the end of the dust removal pipe, the top end of the sealing cap being rotatably connected to the dust removal pipe, and the bottom end of the sealing cap being detachably connected to the dust removal pipe.

[0006] The present invention is further configured such that: a groove is provided on the end face of the inclined section, and a fixing ring is integrally formed on the outer side of the bottom end of the slow-flow tube, and the fixing ring is embedded in the groove.

[0007] The present invention is further configured such that: an installation ring is slidably connected to the outer wall of the slow-flow tube, the outer wall of the top end of the inclined section is threadedly engaged with the inner wall of the installation ring, and the installation ring abuts against the fixing ring.

[0008] The present invention is further configured such that the flow-slowing tube and the sleeve are integrally formed.

[0009] The present invention is further configured such that: the length of the sleeve is greater than the length of the flow-slowing tube, and one end of the sleeve extends into the inclined section.

[0010] The present invention is further configured such that the inner wall of the slow-flow tube is provided with a polyurethane wear-resistant coating.

[0011] In summary, this utility model has the following beneficial effects: the combined design of the inclined section and the slow-flow tube realizes the step-like deceleration of the airflow, which improves the fiber separation efficiency; the detachable slow-flow tube structure and the bottom dust removal tube make cleaning and maintenance more convenient; and the application of the wear-resistant coating extends the service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the slow-flow tube in this utility model.

[0013] In the diagram: 1. Horizontal section; 2. Inclined section; 3. Flow control pipe; 4. Sleeve; 5. Exhaust port; 6. Dust removal pipe; 7. Sealing cover; 8. Fixing ring; 9. Mounting ring. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] Example: A dryer exhaust pipe structure, such as Figure 1 , Figure 2 As shown, the system consists of a horizontal section 1 and an inclined section 2, with both sections integrally formed to ensure airtightness. The inclined section 2 is angled upwards at 45 degrees, and its top is connected to a detachable flow-retarding pipe 3. A sleeve 4 is installed inside the flow-retarding pipe 3, extending approximately 15% beyond the main body of the pipe, forming an airflow buffer zone inside the inclined section 2. The flow-retarding pipe 3 and sleeve 4 are integrally formed from 304 stainless steel, ensuring the overall strength of the combined structure. The inner wall of the flow-retarding pipe 3 is coated with a 0.2mm thick polyurethane wear-resistant coating, effectively resisting fiber friction and reducing noise from dust impact. Multiple rows of 8mm diameter exhaust ports 5 are evenly distributed on the side wall of the sleeve 4, with a total area of ​​1.2 times the cross-sectional area of ​​the main pipe, ensuring a smooth decrease in airflow velocity. The inner wall of the mounting ring 9 has a two-section structure; one section has the same inner diameter as the outer diameter of the flow-retarding pipe 3, while the other section has an inner diameter larger than the outer diameter and is threaded into the inclined section 2. The connection between the slow-flow tube 3 and the inclined section 2 adopts a double fixing structure: the bottom of the slow-flow tube 3 is provided with a fixing ring 8 for embedding into the inclined section 2, and the upper part of the fixing ring 8 is locked by a mounting ring 9 on the inclined section 2 through a threaded connection, which ensures both sealing and easy disassembly and maintenance.

[0016] like Figure 1 , Figure 2As shown, the end of the horizontal section 1 is connected to the dust collection pipe 6. The inner diameter of the dust collection pipe 6 is the same as that of the horizontal section 1. The end of the dust collection pipe 6 is equipped with an openable and closable sealing cap 7. The top of the sealing cap 7 is connected to the dust collection pipe 6 through a hinge structure, and the opening angle can reach 100 degrees, which facilitates thorough cleaning of accumulated dust. The inner surface of the dust collection pipe 6 is polished to reduce the adhesion of fibrous dust.

[0017] During operation, the hot airflow containing fibrous dust first enters the horizontal section 1, then rises along the inclined section 2, and contacts the slow-flow pipe 3 at the end of the inclined section 2. The airflow is then guided through multiple exhaust ports 5, reducing noise and slowing the airflow speed. The fibrous dust is concentrated in the dust collection pipe 6, which is lower than the inclined section 2. The purified hot airflow is then discharged from the end of the sleeve 4. Operators can periodically open the sealing cover 7 for cleaning.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dryer exhaust pipe structure, characterized in that: It includes a horizontal section (1) and an inclined section (2) that are interconnected. The inclined section (2) is set at an angle upward. The bottom end of the inclined section (2) is connected to one end of the horizontal section (1). The top end of the inclined section (2) is detachably connected to a slow-flow pipe (3). A sleeve (4) is fixedly connected inside the slow-flow pipe (3). There is a gap between the outer wall of the sleeve (4) and the inner wall of the slow-flow pipe (3). Several exhaust ports (5) are provided through the side wall of the sleeve (4). The inclined section (2) is connected to the outside through the exhaust ports (5). A dust removal pipe (6) is fixedly connected to one end of the horizontal section (1) near the inclined section (2). A sealing cover (7) is rotatably connected to the end of the dust removal pipe (6). The top end of the sealing cover (7) is rotatably connected to the dust removal pipe (6). The bottom end of the sealing cover (7) is detachably connected to the dust removal pipe (6).

2. The dryer exhaust pipe structure according to claim 1, characterized in that: The inclined section (2) has a groove on its end face, and a fixing ring (8) is integrally formed on the outer side of the bottom end of the slow-flow pipe (3), and the fixing ring (8) is embedded in the groove.

3. The dryer exhaust pipe structure according to claim 2, characterized in that: An installation ring (9) is slidably connected to the outer wall of the slow-flow pipe (3). The outer wall of the top end of the inclined section (2) is threadedly engaged with the inner wall of the installation ring (9). The installation ring (9) abuts against the fixing ring (8).

4. The dryer exhaust pipe structure according to claim 1, characterized in that: The slow-flow tube (3) and the sleeve (4) are integrally formed.

5. The dryer exhaust pipe structure according to claim 4, characterized in that: The length of the sleeve (4) is greater than the length of the slow-flow tube (3), and one end of the sleeve (4) extends into the inclined section (2).

6. The dryer exhaust pipe structure according to claim 1, characterized in that: The inner wall of the slow-flow pipe (3) is provided with a polyurethane wear-resistant coating.

Images