CN114777464A - An air duct of a shaping machine oven for guiding the turbulent flow direction of the exchange medium - Google Patents

Abstract

The invention discloses an air duct of a shaping machine oven for guiding the turbulent flow direction of an exchange medium, comprising: an air duct body, one end of the air duct body is provided with an air inlet; One end of the drainage nozzle is a connection port, and the other end of the drainage nozzle is an air outlet; the drainage nozzle is arranged on the bottom surface of the air duct body, and the connection port is communicated with the air duct body; the drainage nozzle is provided with a plurality of drainage nozzles Set in sequence along the air intake direction. The drainage nozzle has a drainage channel, so that after the hot air leaves the air duct body, it passes through a drainage channel with a certain length, and then is ejected from the air outlet. The ejected exchange medium can be evenly distributed and blown vertically to the fabric. Uniformity and uniform temperature, the invention has the advantages that the exchange medium can be blown vertically to the fabric, the overall drying of the fabric in the setting is uniform, the heat setting drying efficiency is high, and the texture of the fabric after setting is good.

Description

An air duct of a shaping machine oven for guiding the turbulent flow direction of the exchange medium

technical field

The present application relates to the field of turbulent flow of exchange medium gas, in particular to an air duct of a shaping machine oven for guiding the direction of turbulent flow of exchange medium.

Background technique

The setting machine is an important equipment in the printing and dyeing process. Its main function is to realize the drying and tenter setting of the dyed wet fabric. The setting machine provides hot air through the oven system. The air duct and its air outlet in the oven system are the most critical components in the oven system. The air ducts and air outlets of different structures will blow out hot air with different flow rates, temperatures and speeds, and adjacent nozzles. The turbulent flow phenomenon between the two will directly affect the heat setting effect of the fabric, and at the same time affect the energy consumption. During the tentering and setting process of the fabric, the hot air is sprayed onto the fabric through the air outlet to dry the fabric. When the air outlet direction is perpendicular to the fabric, the wind energy penetrates the fabric as much as possible to achieve the ideal state of uniform drying on the surface and inside of the fabric.

The flat air duct is a common air duct on the market. The flat air duct is suitable for the processing of chemical fiber and blended fabrics. The tuyere is directly located on the flat surface of the air duct, so it is difficult to make the airflow blow vertically to the fabric. In addition, the flow rate of the ejected gas is not uniform, and the unreasonable angle between adjacent nozzles is prone to chaotic turbulence, resulting in uneven temperature, which in turn leads to The overall drying of the fabric during setting is uneven, the drying efficiency of heat setting is low, and the hand feeling of the fabric after setting is poor.

SUMMARY OF THE INVENTION

To this end, it is necessary to provide an oven air duct for a shaping machine that guides the turbulent flow direction of the exchange medium, so as to solve the problem of uneven flow and temperature of hot air blown out from the nozzle of the flat air duct in the prior art, resulting in uneven drying of the fabric, The problem of poor drying qualitative effect.

In order to achieve the above object, the inventor provides an air duct of a shaping machine oven for guiding the turbulent flow direction of the exchange medium, including:

an air duct body, one end of the air duct body is provided with an air inlet;

a drainage nozzle, the inside of the drainage nozzle is a drainage channel, one end of the drainage nozzle is a connection port, and the other end of the drainage nozzle is an air outlet; the drainage nozzle is arranged on the bottom surface of the air duct body, and the connection port is communicated with the air duct body; The diversion nozzles are provided with several, and the several diversion nozzles are arranged in sequence along the air inlet direction.

In some embodiments, the cross-section of the drainage channel is circular.

In some embodiments, the side wall of the drainage channel is inclined toward the central axis of the drainage channel along the direction away from the air channel body.

In some embodiments, the inclination angle of the side wall of the drainage channel is 0°-45°.

In some embodiments, the inclination angle of the side wall of the drainage channel is 15°-45°.

In some embodiments, the inclination angle of the sidewall of the drainage channel is 15°, 30° or 45°.

In some embodiments, the inclination angle of the sidewall of the drainage channel is 30°.

In some embodiments, several drainage nozzles are arranged in two rows.

In some embodiments, the drainage nozzles of the two rows are staggered.

In some embodiments, the bottom surface of the air duct body is gradually inclined along the air inlet direction and is disposed away from the top surface of the air duct body.

Different from the prior art, the shaping machine oven air duct for guiding the turbulent flow direction of the exchange medium described in the above technical solution includes an air duct body and a plurality of drainage nozzles, and one end of the air duct body is provided with an air inlet; the drainage The inside of the nozzle is a drainage channel, one end of the drainage nozzle is a connection port, and the other end of the drainage nozzle is an air outlet; the drainage nozzle is arranged on the bottom surface of the air duct body, and the connection port is communicated with the air duct body; the drainage nozzle is provided with Several, several drainage nozzles are arranged in sequence along the air inlet direction. By setting the drainage nozzle, and the drainage nozzle has a drainage channel, the air outlet is protruded out of the air duct body. After the hot air leaves the air duct body, it passes through the drainage channel with a certain length, and then is ejected from the air outlet. When the nozzle is perpendicular to the fabric, the exchange medium sprayed by the drainage nozzle can be evenly distributed and blown vertically to the fabric. The sprayed gas flow is uniform and the temperature is uniform, which eliminates the chaotic turbulent phenomenon and ensures that the overall drying of the fabric in the setting is uniform and hot. The setting drying efficiency is high, and the hand feeling of the fabric after setting is good.

The above-mentioned descriptions related to the content of the invention are only an overview of the technical solutions of the present application. The above objects and other objects, features and advantages of the present application can be more easily understood, which will be described below with reference to the specific embodiments of the present application and the accompanying drawings.

Description of drawings

The accompanying drawings are only used to illustrate the principles, implementations, applications, features and effects of the specific embodiments of the present application and other related contents, and should not be considered as limitations on the present application.

In the drawings in the description:

1 is a perspective view of an air duct of a shaping machine oven for guiding the turbulent flow direction of the exchange medium according to the specific embodiment;

Fig. 2 is the perspective top view of the air duct of the shaping machine oven for guiding the turbulent flow direction of the exchange medium according to the specific embodiment;

3 is a side view of an air duct of a shaping machine oven for guiding the turbulent flow direction of the exchange medium according to the specific embodiment;

Fig. 4 is the front view of the air duct of the shaping machine oven for guiding the turbulent flow direction of the exchange medium according to the specific embodiment;

5 is a structural diagram of a drainage nozzle with a side wall inclination angle of 0° according to the specific embodiment;

6 is a structural diagram of a drainage nozzle with a side wall inclination angle of 15° according to the specific embodiment;

7 is a structural diagram of a drainage nozzle with a side wall inclination angle of 30° according to the specific embodiment;

8 is a structural diagram of a drainage nozzle with a side wall inclination angle of 45° according to the specific embodiment;

9 is a diagram showing the comparison of the air outlet speeds of the existing air outlet and various drainage nozzles according to the specific embodiment;

FIG. 10 is a diagram showing the comparison of the direction of the exchange medium of the existing air outlet and various drainage nozzles according to the specific embodiment;

FIG. 11 is a diagram showing the comparison of the air flow rate of the existing air outlet and various drainage nozzles according to the specific embodiment.

The reference numerals involved in the above drawings are explained as follows:

1. Air duct body;

100. Bottom surface;

101. Top surface;

102. End face;

2. Drainage nozzle;

200. Drainage channel;

201. connection port;

202. Air outlet.

Detailed ways

In order to describe in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the realization of purposes and effects of the present application, the following detailed description is given in conjunction with the specific embodiments listed and with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the protection scope of the present application.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or association with other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any manner to form a corresponding implementable technical solution.

Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the use of related terms in this document is only to describe specific embodiments, rather than intended to limit the application .

In the description of this application, the term "and/or" is an expression used to describe a logical relationship between objects, indicating that three relationships can exist, such as A and/or B, indicating: there is A, there is B, and There are three cases A and B at the same time. In addition, the character "/" in this document generally indicates that the contextual object is a logical relationship of "or".

In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence between these entities or operations Any actual quantity, priority or order relationship.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in sentences is intended to cover non-exclusive inclusion, and these expressions do not exclude Additional elements may also be present in a process, method or product that includes a set of elements, such that a process, method or product including a series of elements may include not only those defined elements, but also other elements not expressly listed , or elements inherent to such a process, method or product.

Similar to the understanding in the Guidelines for Examination, in this application, expressions such as "greater than", "less than", and "exceed" are understood as not including this number; expressions such as "above", "below" and "within" are understood as including this number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple groups", "multiple groups", multiple times", etc., unless otherwise expressly and specifically limited.

In the description of the embodiments of the present application, space-related expressions are used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear"" Left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiments or the accompanying drawings, and is only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, rather than indicating or implying that the indicated device or component must be It has a specific position, a specific orientation, or is constructed or operated in a specific orientation, so it should not be construed as a limitation on the embodiments of the present application.

Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, terms such as "installation", "connection", "connection", "fixing" and "setting" should be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or a Indirectly connected through an intermediary; it may be a communication within two elements or an interaction relationship between two elements. For those skilled in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

The setting machine is an important equipment in the printing and dyeing process. Its main function is to realize the drying and tenter setting of the dyed wet fabric. The setting machine provides hot air through the oven system. The air duct and its air outlet in the oven system are the most critical components in the oven system. The air duct and its air outlet of different structures will blow out the hot air of different flow, temperature and speed, which will directly affect the The heat-setting effect of the fabric is improved, and the energy consumption is affected at the same time. During the tentering and setting process of the fabric, the hot air is sprayed onto the fabric through the air outlet to dry the fabric. When the air outlet direction is perpendicular to the fabric, the wind energy penetrates the fabric as much as possible to achieve the ideal state of uniform drying on the surface and inside of the fabric.

The flat air duct is a common air duct on the market. The flat air duct is suitable for the processing of chemical fiber and blended fabrics. The tuyere is directly set on the flat surface of the air duct, so it is difficult for the exchange medium to blow vertically to the fabric. In addition, the air flow rate is not uniform, resulting in uneven temperature, which in turn leads to uneven drying of the fabric in the setting and the drying efficiency of heat setting. Low, the texture richness of the fabric after setting is poor.

To this end, the present invention provides an oven air duct for a shaping machine that guides the turbulent flow direction of the exchange medium, and the exchange medium sprayed through the shaping machine oven air duct for guiding the turbulent flow direction of the exchange medium can be evenly distributed and blown vertically to the fabric. , the sprayed gas flow is uniform, the temperature is uniform, and the overall drying of the fabric in the setting is uniform, the heat-setting drying efficiency is high, and the texture of the fabric after the setting is good.

Referring to FIG. 1, in a specific embodiment, the air duct of the shaping machine oven for guiding the turbulent flow direction of the exchange medium includes an air duct body 1 and a drainage nozzle 2. The air duct body 1 is used for conveying hot air, and the drainage The nozzle 2 is used to spray the hot air delivered by the air duct body 1 to the fabric.

One end of the air duct body 1 is provided with an air inlet. Specifically, the air duct body 1 is arranged in a hexahedron shape, including a top surface 101, a bottom surface 100, a front surface, a back surface and two end surfaces 102. Please refer to FIG. 1 and FIG. 3 and FIG. 4, in some embodiments, the bottom surface 100 of the air duct body 1 is gradually inclined along the air intake direction and is gradually inclined toward the top surface 101 away from the air duct body 1, that is, the air duct body 1 adopts a mountain-shaped wind. Road ontology 1.

The inside of the drainage nozzle 2 is a drainage channel 200, one end of the drainage nozzle 2 is a connection port 201, the connection port 201 is used to connect with the bottom surface 100 of the air duct body 1, and the other end of the drainage nozzle 2 is an air outlet 202, The air outlet 202 is used to eject the exchange medium. The ejection direction of the exchange medium is from the connection port 201 to the air outlet 202. The length of the drainage channel 200 is the distance from the connection port 201 to the air outlet 202. The drainage channel The actual length of 200 can be set according to actual needs.

The drainage nozzle 2 is arranged on the bottom surface 100 of the air duct body 1, and the connection port 201 is communicated with the air duct body 1. The drainage nozzle 2 is detachably connected with the air duct body 1. For example, the connection port 201 of the drainage nozzle 2 is provided with an external thread, the bottom surface 100 of the air duct body 1 is provided with an installation hole, and the side wall of the installation hole is provided with an external thread. An inner thread is provided, and the drainage nozzle 2 is screwed to the installation hole through the cooperation of the inner thread and the outer thread.

The diversion nozzles 2 are provided with several, and the several diversion nozzles 2 are arranged in sequence along the air inlet direction. Referring to FIG. 2 , in some embodiments, several drainage nozzles 2 are arranged in two rows, and the number of drainage nozzles 2 in each row can be set according to actual requirements, for example, the number of drainage nozzles 2 in both rows is 25.

In some embodiments, the two rows of diversion nozzles 2 are arranged staggered, that is, the two rows of diversion nozzles 2 are not aligned, but slightly offset, and this arrangement can make the air discharge more uniform.

In some embodiments, the cross section of the drainage channel 200 is circular, that is, the drainage channel 200 may be cylindrical or truncated, if it is cylindrical.

In some embodiments, the side wall of the drainage channel 200 is inclined toward the central axis of the drainage channel 200 along the direction away from the air duct body 1 . The inclination angle of the side wall of the drainage channel 200 can be 0°-45°. For example, the inclination angle of the side wall of the drainage channel 200 can be 0°, then the drainage channel 200 is cylindrical, and the diameter of the air outlet 202 is connected to The diameter of the port 201 is the same; if the inclination angle of the side wall of the drainage channel 200 is greater than 0°, the drainage channel 200 is truncated, and the diameter of the outlet 202 is smaller than the diameter of the connection port 201, that is, the drainage nozzle 2 is wedge-shaped.

In order to compare the flow conditions of the exchange medium at the air outlet of the flat air duct described in the background art (that is, before optimization), and the flow conditions of the exchange medium in the drying air duct of the shaping machine described in this application, the present invention selects the background The flat air duct described in the technology, as well as the drying air ducts of the shaping machine with different side wall inclination angles of the four groups of drainage nozzles 2, that is, the inclination angles of the side wall of the drainage nozzle 2 are 0°, 15°, 30° and 45°. The setting machine dries the air duct for comparison. As shown in FIG. 9 , “before optimization” refers to a flat air duct, the surface of the flat air duct has a round hole and does not have a drainage channel 200 .

(1) Comparison of velocity distribution:

The results are shown in Figure 9. The velocities of 50 nozzle outlets were counted, and No. 1 and No. 26 were nozzles near the inlet of the air duct. It can be seen from Figure 9 that before the optimization, the velocity fluctuates greatly, and the distribution is extremely uneven. For the drying air duct of the shaping machine with the side wall inclination angle of the drainage nozzle 2 being 0°, the distribution of the speed does not change much compared with that before the optimization, and the optimization effect is not obvious. For the drying air ducts of the shaping machine with the side wall inclination angles of the drainage nozzle 2 of 15°, 30° and 45°, the speed distribution is relatively uniform, compared with the shaping machine whose side wall inclination angles of the drainage nozzle 2 are 15°, 45° For the drying air duct, the velocity distribution of the drying air duct of the shaping machine with the side wall inclination angle of the drainage nozzle 2 being 30° is the best, and the flow situation of the drying air duct of the shaping machine with the side wall inclination angle of the drainage nozzle 2 being 30° optimal.

(2) Comparison of the distribution of velocity directions:

The premise design here is consistent with the above, and the results are shown in Figure 10. It can be seen from Figure 10 that the velocity direction at the air outlet before the optimization fluctuates greatly, and the direction of some air outlets is biased to 70°, and the distribution is extremely uneven. The overall trend is The fluctuations are large, especially in the middle of the air duct, and the deviation of the speed direction is the largest. For the drying air duct of the shaping machine with the side wall inclination angle of the drainage nozzle 2 being 0°, the distribution of the speed direction is much better than that before the optimization, but there are still some direction deviations at the drainage nozzle 2, which deviate to 80° . The drying air ducts of the shaping machine whose inclination angles of the side walls of the drainage nozzle 2 are 15°, 30° and 45° have better distribution and the best flow.

(3) Comparison of export flow distribution:

The premise design here is consistent with the above, and the results are shown in Figure 11. It can be seen from Figure 11 that the flow at the air outlet before the optimization fluctuates greatly, and the maximum difference between each air outlet is 0.5g/s. The distribution is extremely uneven, and the overall trend is The fluctuation is large, and the flow difference between adjacent air outlets is also large. In the drying air duct of the shaping machine with the side wall inclination angle of the drainage nozzle 2 being 0°, the flow distribution is not much changed compared with that before the optimization, but the flow difference between the adjacent drainage nozzles 2 is gradually reduced a lot. The drying air ducts of the shaping machine whose inclination angles of the side walls of the drainage nozzle 2 are 15°, 30° and 45° have better distribution and the best flow.

It can be seen from Figures 9, 10, and 11 that the air outlet structure of the flat air duct before optimization has extremely uneven distribution of velocity, flow rate and velocity direction at the air outlet, and the shaper with the side wall inclination angle of the drainage nozzle 2 is 0°. The drying air duct reduces the speed difference between the drainage nozzles 2, but on the whole, the optimization effect is not obvious. The drying air ducts of the shaping machine with the sidewall inclination angles of the drainage nozzle 2 of 15°, 30° and 45° can effectively improve the distribution of flow and speed directions. The air duct can effectively improve the velocity distribution, that is, the optimization effect is best when the inclination angle of the side wall of the drainage nozzle 2 is 30°.

Therefore, in some embodiments, the inclination angle of the side wall of the drainage channel 200 is 15°-45°. Specifically, please refer to FIG. 5 , FIG. 6 , and FIG. 8 , the inclination of the side wall of the drainage channel 200 is The angle may be 15°, 30° or 45°, but most preferably, the inclination angle of the side wall of the drainage channel 200 is 30°, as shown in FIG. 7 .

The air duct of the setting machine oven for guiding the turbulent flow direction of the exchange medium of the invention has a simple structure, and can improve the phenomenon of uneven distribution of the exchange medium field and the temperature field on the wet fabric surface caused by the space layout structure of the air duct of the existing printing and dyeing heat setting machine. By setting the drainage nozzle 2, and the drainage nozzle 2 has a drainage channel 200, the air outlet 202 is protruded from the air duct body 1, and the hot air passes through the drainage channel 200 with a certain length after leaving the air duct body 1, and then exits from the air duct body 1. When the air outlet 202 is sprayed, when the drainage nozzle 2 is perpendicular to the fabric, the exchange medium sprayed by the drainage nozzle 2 can be evenly distributed and blown vertically to the fabric, and the sprayed gas flow is uniform and the temperature is uniform, ensuring the overall drying of the fabric in the setting. Uniformity, high heat-setting drying efficiency, and good hand-feeling of the fabric after setting, which can ensure the drying uniformity of the fabric within the width range, improve the heat-setting drying efficiency, and improve the fabric setting quality.

Finally, it should be noted that, although the above-mentioned embodiments have been described in the description and drawings of the present application, the scope of the patent protection of the present application cannot be limited accordingly. Any technical solution generated by replacing or modifying the equivalent structure or equivalent process based on the content of the description and the accompanying drawings based on the essential concept of the application, and directly or indirectly implementing the technical solutions of the above embodiments in Other related technical fields, etc., are all included within the scope of patent protection of this application.

Claims (10)

1. A boarding machine oven air duct for guiding the turbulent flow direction of exchange media, characterized by comprising:

the air duct comprises an air duct body, wherein one end of the air duct body is provided with an air inlet;

the drainage nozzle is internally provided with a drainage channel, one end of the drainage nozzle is a connector, and the other end of the drainage nozzle is an air outlet; the drainage nozzle is arranged at the bottom surface of the air duct body, and the connecting port is communicated with the air duct body; the drainage nozzle is equipped with a plurality of, and a plurality of drainage nozzle sets gradually along the air inlet direction.

2. The shaper oven duct for directing turbulent exchange media flow according to claim 1, wherein the cross-section of the flow-directing channel is circular.

3. The shaper oven air duct for directing exchange media turbulent flow direction according to claim 2, wherein the side walls of the flow guide channel are inclined toward the central axis of the flow guide channel in a direction away from the air duct body.

4. The shaper oven duct for directing turbulent exchange medium flow according to claim 3, wherein the angle of inclination of the sidewalls of the flow-directing channels is between 0 ° and 45 °.

5. The shaper oven duct for directing turbulent exchange medium flow according to claim 4, wherein the angle of inclination of the sidewalls of the flow-directing channels is between 15 ° and 45 °.

6. The shaper oven duct for directing turbulent exchange medium flow according to claim 5, wherein the angle of inclination of the sidewalls of the flow-directing channels is 15 °, 30 °, or 45 °.

7. The shaper oven duct for directing turbulent exchange media flow according to claim 6, wherein the side walls of the flow-directing channels are inclined at an angle of 30 °.

8. The shaper oven duct for directing exchange media turbulent flow direction of claim 1, wherein the plurality of flow-directing nozzles are arranged in two rows.

9. The shaper oven duct for directing exchange media turbulent flow direction according to claim 1, wherein the two rows of draft nozzles are staggered.

10. The shaper oven air duct for directing exchange media turbulence flow direction as recited in claim 1, wherein a bottom surface of the air duct body is gradually sloped along an air intake direction toward a top surface away from the air duct body.

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