Solder strip low-temperature cooling air duct

Abstract

The welding strip low-temperature cooling air duct comprises a separation chamber, a control valve set and a vortex separator, a sealing cover is fixedly installed on one side of the separation chamber, a diffuser is fixedly connected to the other side of the sealing cover, and the control valve set is fixedly installed on the other side of the separation chamber; the surface of the separation chamber is communicated with a plurality of flow dividing pipes, the other ends of the flow dividing pipes are fixedly connected with gas distribution rings, the vortex separator is fixedly installed on the inner side of the separation chamber, and a first vortex chamber located on the periphery of the vortex separator is arranged on the inner side of the separation chamber. According to the invention, the airflow energy separation effect is adopted, the airflow is accelerated in the first vortex chamber to form a free vortex, the central part of gas loses energy due to friction, the temperature is reduced, the cold airflow is formed, and the cold airflow moves and is led out along the surface of the welding strip, so that the welding strip is rapidly cooled; the system has the advantages of low cost, no maintenance, high efficiency and the like.

Description

Technical Field

[0001] The invention relates to the technical field of solder strip cooling, and in particular to a solder strip low-temperature cooling air duct. Background Art

[0002] In the production process of photovoltaic ribbons, cooling is a key step to ensure product quality and performance. With the continuous advancement of photovoltaic technology and the diversification of photovoltaic ribbon specifications, higher requirements are placed on ribbon cooling technology. Traditional ribbon cooling air ducts mainly rely on fans and refrigeration components for airflow cooling. However, in actual applications, this cooling method has gradually exposed many disadvantages.

[0003] The combined cooling method of the fan and the refrigeration component has limitations in cooling effect. Although the wind flow generated by the fan can take away the heat from the surface of the solder strip, its cooling effect is often poor when facing large-sized solder strips or high-temperature environments. Although the refrigeration component can generate airflow at a lower temperature, it has high energy consumption and high maintenance costs, and the cooling effect is greatly affected by external factors such as ambient temperature and humidity. The combined cooling method of the fan and the refrigeration component has shortcomings in energy consumption and environmental protection. The fan consumes a lot of electricity to generate wind flow, while the refrigeration component relies on electricity to drive the compressor, which further increases energy consumption. At the same time, the refrigeration component may generate noise and vibration during operation, which has an adverse effect on the production environment. In addition, the refrigerant of the refrigeration component may pollute the environment, which is not in line with the development trend of modern industry's green, low-carbon and environmental protection. In addition, with the continuous development of photovoltaic technology, the production process of solder strips is also constantly improving, and the requirements for cooling technology are also constantly increasing. Traditional cooling air ducts have great difficulties in adapting to new technologies and new processes. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the present invention is: a low-temperature cooling air duct for a welding strip, comprising: a separation chamber, a control valve group and an eddy current separator, a cover is fixedly installed on one side of the separation chamber, a diffuser is fixedly connected to the other side of the cover, the control valve group is fixedly installed on the other side of the separation chamber, a plurality of shunt pipes are connected to the surface of the separation chamber, and an air distribution ring is fixedly connected to the other end of the shunt pipe, the eddy current separator is fixedly installed on the inner side of the separation chamber, a first vortex chamber located at the outer periphery of the vortex separator is provided on the inner side of the separation chamber, and the first vortex chamber is connected to the interior of the air distribution ring through the shunt pipe, the control valve group comprises a fixed ring, a sliding sleeve and a material sleeve valve head, the fixed ring is fixed to the surface of the separation chamber and a guide rod is fixedly installed on the surface of the fixed ring, the sliding sleeve is slidably sleeved on the surface of the guide rod, the material sleeve valve head is fixedly installed on the surface of the sliding sleeve and one end is opposite to and sleeved on the axis of the fixed ring, and the material sleeve valve head is provided with a material sleeve hole for sleeved on the surface of the material; A second vortex chamber and an axial flow airway are provided inside the vortex separator, an outlet flow channel is provided on the inner side of the diffuser, one end of the axial flow airway is connected to the end of the outlet flow channel, a plurality of compression flow channels are provided on the surface of the vortex separator, and a connecting groove connected to the interior of the second vortex chamber is provided at one end of the compression flow channel.

[0006] In a preferred example, the present invention can be further configured as follows: the air distribution ring is arranged in a ring shape on the outer periphery of the air distribution ring, and a plurality of air distribution rings are evenly distributed on the inner side of the air distribution ring in the circumferential direction, and the diverter pipe is connected to the inner side of the air distribution ring in a tangential direction.

[0007] In a preferred example, the present invention can be further configured as follows: the diffuser and the outlet flow channel are conical structures and the inner diameter gradually increases along the end away from the cover.

[0008] In a preferred example, the present invention can be further configured as follows: a plurality of evenly distributed temperature sensors are fixedly mounted on the surface of the separation chamber, and the temperature sensors are used to sense the temperature of each layer of air flow inside the separation chamber.

[0009] In a preferred example, the present invention can be further configured as follows: one end of the sleeve valve head is in a conical structure and is arranged concentrically with the second vortex chamber, and the gap between the fixed ring and the sleeve hole is used for the outlet of the hot air flow.

[0010] In a preferred example, the present invention can be further configured as follows: the compression flow channel adopts a contraction type Archimedean curve design, the compression flow channel is a two-section type, one section of which is an Archimedean curve, and the other section, i.e., the section of the compression flow channel close to the first vortex chamber, is formed by rotating the Archimedean curve around its center point by a certain angle, wherein the angle is 8° to 10°.

[0011] In a preferred example, the present invention can be further configured as follows: the gap of the connecting groove is smaller than the internal gap of the compression flow channel.

[0012] The beneficial effects achieved by the present invention are: 1. In the present invention, the airflow energy separation effect is adopted to accelerate the airflow inside the first vortex chamber to form a free vortex. The gas in the center loses energy due to friction and its temperature decreases, forming a cold airflow. The cold airflow is guided along the surface of the welding strip to achieve rapid cooling of the welding strip, which has the advantages of low cost, maintenance-free, high efficiency, etc.

[0013] 2. In the present invention, the airflow introduced into the second vortex chamber through the compression flow channel is compressed at the connecting groove and released from the second vortex chamber. The airflow is further accelerated by the expansion effect, so that its vortex speed is significantly improved relative to the vortex speed inside the first vortex chamber, thereby expanding the energy separation effect, outputting low-temperature airflow, and further lowering the external ambient temperature through expansion release during the diffuser outlet, thereby ensuring the efficient cooling effect of the welding strip.

[0014] 3. In the present invention, a moving-part-free design is adopted, which has high reliability, can operate stably for a long time, and improves the refrigeration efficiency. However, in the application of low-temperature cooling of the welding strip, it can still provide sufficient cooling effect to meet the demand of low-temperature cooling of the welding strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the decomposed structure of an embodiment of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of an embodiment of the present invention; Figure 4 A schematic diagram of the separation chamber structure of an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a control valve group according to an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a cover and a diffuser according to an embodiment of the present invention; Figure 7 A schematic diagram of the structure of an eddy current separator according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the surface structure of an eddy current separator according to an embodiment of the present invention.

[0016] Reference numerals: 100, separation chamber; 110, air distribution ring; 120, temperature sensor; 130, cover; 140, diffuser; 101, first vortex chamber; 111, shunt pipe; 141, outlet flow channel; 200, control valve group; 210, fixing ring; 220, sliding sleeve; 230, material sleeve valve head; 211, guide rod; 231, material sleeve hole; 300, vortex separator; 310, second vortex chamber; 320, axial flow channel; 330, compression flow channel; 331, connecting groove. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0018] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0019] A welding strip low-temperature cooling air duct provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0020] Combination Figure 1-7 As shown, a welding strip low-temperature cooling air duct provided by the present invention comprises: a separation chamber 100, a control valve group 200 and an eddy current separator 300, a cover 130 is fixedly installed on one side of the separation chamber 100, a diffuser 140 is fixedly connected to the other side of the cover 130, the control valve group 200 is fixedly installed on the other side of the separation chamber 100, a plurality of shunt pipes 111 are connected to the surface of the separation chamber 100, and the other end of the shunt pipe 111 is fixedly connected to the air distribution ring 110, the eddy current separator 300 is fixedly installed on the inner side of the separation chamber 100, and the inner side of the separation chamber 100 is provided with a vortex separator 300. 0, and the first vortex chamber 101 is connected with the inside of the air distribution ring 110 through the shunt pipe 111, the control valve group 200 includes a fixed ring 210, a sliding sleeve 220 and a material sleeve valve head 230, the fixed ring 210 is fixed to the surface of the separation chamber 100, and a guide rod 211 is fixedly installed on the surface of the fixed ring 210, the sliding sleeve 220 is slidably sleeved on the surface of the guide rod 211, the material sleeve valve head 230 is fixedly installed on the surface of the sliding sleeve 220, and one end of the material sleeve valve head 230 is opposite to and sleeved on the axis of the fixed ring 210, and the material sleeve valve head 230 is provided with a material sleeve hole 231 for sleeved on the surface of the material; A second vortex chamber 310 and an axial air duct 320 are provided inside the vortex separator 300, an outlet flow channel 141 is provided on the inner side of the diffuser 140, one end of the axial air duct 320 is connected to the end of the outlet flow channel 141, a plurality of compression flow channels 330 are provided on the surface of the vortex separator 300, and one end of the compression flow channel 330 is provided with a connecting groove 331 connected to the inside of the second vortex chamber 310.

[0021] In this embodiment, the air distribution ring 110 is arranged in a ring shape on the outer periphery of the air distribution ring 110 , and a plurality of air distribution rings 110 are evenly distributed on the inner side of the air distribution ring 110 in the circumferential direction, and the shunt pipe 111 is connected to the inner side of the air distribution ring 110 in a tangential direction.

[0022] Specifically, the tangentially connected flow divider 111 is used to make the airflow swirl inside the separation chamber 100 and improve the compression effect inside the second vortex chamber 310 .

[0023] In this embodiment, the diffuser 140 and the outlet flow channel 141 are conical structures and the inner diameters thereof gradually increase along the end away from the cover 130 .

[0024] Specifically, after the compressed air flow is discharged from the diffuser 140 , it is further released through expansion to lower the external ambient temperature, thereby ensuring an efficient cooling effect of the solder strip.

[0025] In this embodiment, a plurality of evenly distributed temperature sensors 120 are fixedly mounted on the surface of the separation chamber 100 . The temperature sensors 120 are used to sense the temperature of each layer of air flow inside the separation chamber 100 .

[0026] In this embodiment, one end of the jacket valve head 230 is in a conical structure and is arranged concentrically with the second vortex chamber 310 , and the gap between the fixing ring 210 and the jacket hole 231 is used for the outlet of the hot air flow.

[0027] In this embodiment, the compression channel 330 adopts a contraction type Archimedean curve design. The compression channel 330 is a two-section type, one section of which is an Archimedean curve, and the other section, i.e., the section of the compression channel 330 close to the first vortex chamber 101, is formed by rotating the Archimedean curve around its center point by a certain angle, wherein the angle is 8° to 10°.

[0028] Furthermore, the gap of the communication groove 331 is smaller than the internal gap of the compression channel 330 .

[0029] Specifically, by adopting a contraction type Archimedean line, when the compressed air enters the second vortex chamber 310, the speed of air rotation can be greatly increased, and the air is compressed at the connecting groove 331 and released from the inside of the second vortex chamber 310. The airflow is further accelerated by the expansion effect, so that its vortex speed is significantly increased relative to the vortex speed inside the first vortex chamber 101.

[0030] The working principle and use process of the present invention: In the low-temperature cooling air duct using the welding strip, the welding strip that needs to be cooled is passed through the material sleeve hole 231 and passes through the axial flow airway 320 and the outlet flow channel 141 and then led out. The air distribution ring 110 is connected to the high-pressure air pump, and the air flow input by the air pump is dispersed through the air distribution ring 110 and enters the separation chamber 100 through each tangentially arranged diverter pipe 111 and generates a swirl motion inside the first vortex chamber 101, that is, the outer periphery of the vortex separator 300. When the air flow passes through the compression flow channel 330, the flow is limited by the connecting groove 331 inside the compression flow channel 330 to generate a compression effect, and after being released into the second vortex chamber 310, the pressure of the compressed air flow is rapidly reduced, and the gas expands and accelerates to the speed of sound in the second vortex chamber 310 to form a free vortex. The closer to the center, the greater the rotation angular velocity of the free vortex. Due to the difference in angular velocity, friction is generated between the layers of the free vortex. The airflow in the center has the highest angular velocity, and through friction, it transfers energy to the airflow in the outer layer with a lower angular velocity, causing the airflow in the center to lose energy, reduce kinetic energy, slow down, and reduce temperature. This part of the gas is led out through the outlet channel 141 at one end of the second vortex chamber 310 to form the cold airflow required for refrigeration; The airflow in the outer layer gains momentum, increases kinetic energy, and rubs against the wall of the vortex tube, converting part of the kinetic energy into heat energy. This part of the gas is led out from the second vortex chamber 310 through the gap between the jacket valve head 230 and the fixing ring 210, and this part of the hot airflow is released; The central part of the cold air flow wraps around the surface of the solder strip and cools the solder strip by heat exchange. After the cold air flow is discharged along the outlet channel 141, the compression strength is further reduced, so that the air flow further diffuses and reduces the temperature, thereby evenly cooling the surface of the solder strip.

[0031] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A low temperature cooling duct for a welding strip, characterized in that: include: A separation chamber (100), a control valve group (200) and an eddy current separator (300), wherein a cover (130) is fixedly mounted on one side of the separation chamber (100), and a diffuser (140) is fixedly connected to the other side of the cover (130); the control valve group (200) is fixedly mounted on the other side of the separation chamber (100); a plurality of shunt pipes (111) are connected to the surface of the separation chamber (100), and the other ends of the shunt pipes (111) are fixedly connected to an air distribution ring (110); the eddy current separator (300) is fixedly mounted on the inner side of the separation chamber (100); a first eddy current chamber (101) located on the outer periphery of the eddy current separator (300) is provided on the inner side of the separation chamber (100), and the first eddy current chamber (101) is connected to the inside of the air distribution ring (110) through the shunt pipe (111); The control valve assembly (200) comprises a fixed ring (210), a sliding sleeve (220) and a sleeve valve head (230); the fixed ring (210) is fixed to the surface of the separation chamber (100) and a guide rod (211) is fixedly mounted on the surface of the fixed ring (210); the sliding sleeve (220) is slidably sleeved on the surface of the guide rod (211); the sleeve valve head (230) is fixedly mounted on the surface of the sliding sleeve (220) and one end of the sleeve valve head is opposite to and sleeved on the axis of the fixed ring (210); and a sleeve hole (231) for sleeved on the surface of the material is provided inside the sleeve valve head (230); The vortex separator (300) is provided with a second vortex chamber (310) and an axial flow channel (320) inside, the diffuser (140) is provided with an outlet channel (141) inside, one end of the axial flow channel (320) is connected to the end of the outlet channel (141), and a plurality of compression channels (330) are provided on the surface of the vortex separator (300), and one end of the compression channel (330) is provided with a connecting groove (331) connected to the inside of the second vortex chamber (310).

2. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: The air distribution ring (110) is arranged in a ring shape on the outer periphery of the air distribution ring (110), and a plurality of air distribution rings (110) are evenly distributed on the inner side of the air distribution ring (110) in a circumferential direction, and the flow distribution pipe (111) is connected to the inner side of the air distribution ring (110) in a tangential direction.

3. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: The diffuser (140) and the outlet flow channel (141) are conical structures, and the inner diameters gradually increase along the end away from the cover (130).

4. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: A plurality of evenly distributed temperature sensors (120) are fixedly mounted on the surface of the separation chamber (100), and the temperature sensors (120) are used to sense the temperature of each layer of airflow inside the separation chamber (100).

5. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: One end of the sleeve valve head (230) is in a conical structure and is arranged concentrically with the second vortex chamber (310); the gap between the fixing ring (210) and the sleeve hole (231) is used for guiding out the hot air flow.

6. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: The compression flow channel (330) adopts a contraction-type Archimedean curve design. The compression flow channel (330) is a two-section type, one section of which is an Archimedean curve, and the other section, i.e., a section of the compression flow channel (330) close to the first vortex chamber (101), is formed by rotating the Archimedean curve around its center point by a certain angle, wherein the angle is 8° to 10°.

7. The low-temperature cooling air duct for welding strip according to claim 1, characterized in that: The gap of the communication groove (331) is smaller than the internal gap of the compression flow channel (330).

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