A refrigeration device for a steaming machine and its refrigeration method

Abstract

This invention belongs to the field of refrigeration in fabric steaming machines, and particularly relates to a refrigeration device and method for fabric steaming machines. It includes a shell, a steam generator, a transfer roller A, a motor A, a cooling roller A, a cooling roller B, a motor B, and a vortex tube mechanism. The shell, mounted on a support frame, is divided into a refrigeration space and a heating space, connected by a channel allowing the fabric to pass horizontally. In this invention, the circular tube B of the vortex tube mechanism, driven by motor C, accelerates the internal flow in circular tube A, further reducing the internal flow temperature and simultaneously increasing the external flow temperature, thereby increasing the cooling capacity of the internal flow. Simultaneously, driven by motor D, circular tube C maintains rotation consistent with the direction and speed of the incoming internal flow vortex, reducing the cooling loss of the internal flow entering circular tube C, effectively increasing the cooling capacity of the jet pipe, and improving the refrigeration efficiency of the fabric after heating and processing.

Description

Technical Field

[0001] This invention belongs to the field of refrigeration for steamed fabric machines, and particularly relates to a refrigeration device for steamed fabric machines and its refrigeration method. Background Technology

[0002] Steaming machines are commonly used equipment in the dyeing and weaving industry. They mainly process woolen fabrics with hot steam. After processing, the woolen fabrics are still quite hot and do not easily proceed to the next process. They need to be left to cool for a relatively long time.

[0003] Currently, refrigeration equipment is used to shorten the cooling time of woolen fabrics. However, the refrigeration equipment is large and not conducive to later modification. Moreover, the factory needs to add cables to meet the increased power consumption caused by the addition of refrigeration equipment.

[0004] Factory buildings typically have high-pressure air sources. Using vortex tubes to cool the high-pressure air can achieve the purpose of cooling wool fabrics with a small volume. However, because the pressure of high-pressure air in conventional factory buildings is low and the cooling capacity of wool fabrics is relatively large, vortex tubes with small cooling capacity cannot meet the cooling needs of wool fabrics, resulting in poor practicality for cooling wool fabrics.

[0005] This invention designs a refrigeration device for a steamer to solve the above problems by improving the vortex tube. Summary of the Invention

[0006] To address the aforementioned deficiencies in the prior art, this invention discloses a refrigeration device for a steaming machine and its refrigeration method, which is implemented using the following technical solution.

[0007] A refrigeration device for a steam-dried fabric includes a shell, a steam generator, a transfer roller A, a motor A, a cooling roller A, a cooling roller B, a motor B, and a vortex tube mechanism. The shell, mounted on a support frame, is divided into a cooling space and a heating space, which are connected by a channel that allows the fabric to pass horizontally. The heating space contains several transfer rollers A that, driven by motor A, transfer the fabric entering from the feed inlet and heated by the steam generator within the heating space to the cooling space via the channel. The shell contains several vortex tube mechanisms that, laterally and evenly distribute cool air (converted from general-purpose compressed air) to cool the fabric entering the cooling space and simultaneously transfer the hot air (converted from general-purpose compressed air) to the heating space. The vortex tube mechanism has a structure that significantly increases its cooling capacity.

[0008] The cooling space is equipped with cooling rollers A and B, which are driven by motor B to clamp and wind the woolen fabric from the heating space. Cooling rollers A and B have a structure that uses cold air generated by the vortex tube mechanism to assist the vortex tube mechanism in cooling the wound part of the woolen fabric. The cooling space is also equipped with two transfer rollers B, which are driven by motor B to horizontally transfer the woolen fabric to be cooled through the discharge port to the next process.

[0009] As a further improvement to this technology, a gear A is installed on the roller shaft A where the transmission roller A is located; two gears A on any two adjacent roller shafts A simultaneously mesh with gear B on the housing; the roller shaft A where one transmission roller A is located is connected to the output shaft of the motor A on the housing for transmission.

[0010] As a further improvement to this technology, a gear E is installed on the roller shaft B where the transmission roller B is located, and the two gears E on the roller shaft B where the two transmission rollers B are located mesh with the gear F on the housing; the roller shaft B where one transmission roller B is located is connected to the output shaft of the motor B on the housing for transmission.

[0011] As a further improvement to this technology, the cooling roller A is installed in the housing through hollow pivot pins A at both ends; the cooling roller A has an annular air cavity with a thin wall formed between the two pivot pins A and the outer cylindrical surface of the cooling roller A; one pivot pin A is connected to a negative pressure pump through a suction pipe A that rotatably engages with it; the hollow cooling roller B is installed in the housing through two hollow pivot pins B that are connected to it at both ends, and the cylindrical surface of the cooling roller B is densely covered with air holes that communicate with it; the pivot pin A without suction pipe A is connected to the pivot pin B on the same side through a connecting pipe, and the two ends of the connecting pipe are rotatably engaged with pivot pin A and pivot pin B; gears C are installed on both the pivot pin A with suction pipe A and the pivot pin B on the same side, and the two gears C mesh with each other; the gear C installed on the pivot pin B meshes with the gear D on the housing, and the gear D meshes with the gear E on a roller shaft B.

[0012] As a further improvement to this technology, the transmission ratio between gear C and gear E is 1:1.

[0013] As a further improvement to this technology, an arc-shaped baffle is installed inside the cooling roller B to block and seal the air holes on the cooling roller B that are not covered by the wool fabric; the baffle is fixed to the frame outside the housing by a fixed column that rotates in the pivot pin B where the gear C is located.

[0014] As a further improvement to this technology, the vortex tube mechanism includes a circular tube A, an air supply pipe, a circular tube B, a motor C, a circular tube C, a motor D, an air jet pipe, a column block A, a cyclone separator, a water supply pipe, an insulation sleeve, and a column block B. Circular tube B, which is rotatably fitted within the circular tube A to form an annular channel and is driven by the motor C, rotates in the same direction as the swirling flow generated by the vortex grooves. Circular tube C, driven by the motor D, rotates within circular tube B, and rotates in the same direction as the swirling flow of the cold air entering it. Several vortex grooves are evenly distributed circumferentially on one end of the cylindrical surface within the cooling space of circular tube A. It is equipped with an annular air groove that covers all the swirl channels and is connected to the air pump through the air supply pipe; a column A is installed in the air outlet end of the heating space of the circular tube A, forming an annular channel that only allows the outer swirling hot air to pass through; a column B covered with an insulation sleeve is installed on the end face of the column A, and the end face of the column B has a conical groove that reflects and guides the inner swirling cold air into the circular tube C; the water outlet at the end of the column A is connected to the water pump through the water supply pipe, and a cyclone separator that atomizes the water is installed in the water outlet; a jet pipe that discharges cold air to the cloth on the cooling roller B with a certain lateral width is rotatably fitted on one end of the circular tube C located in the cooling space.

[0015] As a further improvement to this technology, a bearing is fitted between the circular tube B and the circular tube C; the outer cylindrical surface of the circular tube B is rough.

[0016] As a further improvement to this technology, motors C and D are mounted outside the housing; the output shaft of motor C is rotatably engaged with a circular groove on the housing, and gear H mounted on the output shaft of motor C meshes with gear G on the circular tube B; the output shaft of motor D is rotatably engaged with a circular groove on the housing, and gear J mounted on the output shaft of motor D meshes with gear I on the circular tube C.

[0017] As a further improvement to this technology, the cooling method is as follows: 1. Simultaneously start motors A and B, the steam generator, all motors C and D, the air pump, the negative pressure pump, and the water pump. The compressed air sent into the vortex tube mechanism by the air pump forms significantly cooled cold air at the jet pipe and hot air discharged into the heating space at the air outlet, which participates in the heating process of the fabric by the steam generator. 2. Motor B drives cooling rollers A and B to rotate. The negative pressure generated by the negative pressure pump causes the cold air ejected from the jet pipe to enter the air cavity in cooling roller A through the air holes on cooling roller B that are not blocked by the baffle, the pivot pin B, the connecting pipe, and the pivot pin A, thus cooling the cylindrical surface of cooling roller A. 3. The fabric is placed on the transfer roller A through the feed port and is driven by the rotating transfer roller A to enter between cooling rollers A and B, and finally transferred to the discharge port through the two transfer rollers B. 4. During the process of the fabric passing through cooling roller A and cooling roller B, the fabric is effectively cooled by the cold air discharged through the jet pipe in the entire vortex tube mechanism. At the same time, the negative pressure generated in cooling roller B causes the cold air to pass through the fabric and enter cooling roller A, and finally reach the air cavity of cooling roller A to cool the cylindrical surface of cooling roller A, further cooling the fabric part wrapped on cooling roller A and cooling roller B.

[0018] The column A is installed inside the circular tube A by three circumferentially evenly distributed fixing plates.

[0019] Compared to traditional steamed fabric cooling devices, the vortex tube mechanism in this invention accelerates the internal flow in tube A under the drive of motor C, further reducing the internal flow temperature and simultaneously increasing the external flow temperature, thereby increasing the cooling capacity of the internal flow. Simultaneously, under the drive of motor D, tube C maintains rotation consistent with the direction and speed of the incoming internal flow vortex, reducing the cooling loss of the internal flow entering tube C, effectively increasing the cooling capacity of the jet pipe, and improving the cooling efficiency of the fabric after heating and processing.

[0020] In addition, the room-temperature water that reaches the column A through the water supply pipe is atomized to a certain extent under the action of the hydrocyclone. The atomized water vapor reaches the air outlet of the circular tube A through the water outlet of the column A. Under the external heating of the increased temperature in the circular tube A, it absorbs heat and is converted into hot steam. It then enters the heating space of the shell through the air outlet at the end of the circular tube A to participate in the heating and processing of the fabric. This fully utilizes the heat generated by the vortex tube mechanism to participate in the heating and processing of the fabric without wasting the heat generated by the external flow of the vortex tube mechanism, thereby improving the utilization rate of the heat generated by the vortex tube mechanism.

[0021] This invention has a simple structure and good performance. Attached Figure Description

[0022] Figure 1 These are schematic diagrams from two perspectives of the present invention.

[0023] Figure 2 This is a schematic cross-sectional view of the entire invention.

[0024] Figure 3 This is a schematic diagram of the longitudinal section of a vortex tube.

[0025] Figure 4 This is a schematic diagram of the transverse cross-section of a vortex tube.

[0026] Figure 5 This is a schematic cross-sectional view of the vortex tube mechanism, cooling roller A and cooling roller B in conjunction with the woolen fabric.

[0027] Figure 6 This is a cross-sectional schematic diagram of the driving structure of cooling roller A, cooling roller B, and transfer roller B.

[0028] Figure 7 This is a schematic diagram of the cross-section of cooling roller A.

[0029] Figure 8 This is a cross-sectional schematic diagram of cooling roller B from two different perspectives.

[0030] Figure 9 This is a schematic cross-sectional view of the drive structure of transfer roller A.

[0031] Figure 10 This is a schematic cross-sectional view of the vortex tube mechanism inside the shell.

[0032] Labels in the diagram: 1. Support; 2. Shell; 3. Feed inlet; 4. Heating space; 5. Discharge outlet; 6. Cooling space; 7. Channel; 8. Steam generator; 9. Transfer roller A; 10. Roller shaft A; 11. Gear A; 12. Gear B; 13. Motor A; 14. Cooling roller A; 15. Air chamber; 16. Turning pin A; 17. Suction pipe A; 18. Negative pressure pump; 19. Connecting pipe; 20. Cooling roller B; 21. Air hole; 22. Turning pin B; 23. Baffle; 24. Fixed column; 25. Gear C; 26. Gear D; 27. Gear E; 28. Gear F; 29. Conveyor roller B; 30. Roller shaft B; 31. Motor B; 32. Fabric; 33. Vortex tube mechanism; 34. Circular tube A; 35. Air outlet; 36. Swirl channel; 37. Air channel; 38. Air supply pipe; 39. Circular tube B; 40. Gear G; 41. Gear H; 42. Motor C; 43. Bearing; 44. Circular tube C; 45. Gear I; 46. Gear J; 47. Motor D; 48. Jet nozzle; 49. Column block A; 50. Water outlet; 51. Fixing plate; 52. Swirl generator; 53. Water supply pipe; 54. Insulation jacket; 55. Column block B; 56. Conical groove. Detailed Implementation

[0033] The accompanying drawings are schematic diagrams illustrating embodiments of the present invention to facilitate understanding of the structural operating principle. Specific product structures and dimensions can be determined based on the usage environment and conventional technologies.

[0034] like Figure 1 , 2 As shown, it includes a housing 2, a steam generator 8, a transfer roller A9, a motor A13, a cooling roller A14, a cooling roller B20, a motor B31, and a vortex tube mechanism 33, wherein... Figure 2 As shown, the housing 2 installed in the bracket 1 is divided into a cooling space 6 and a heating space 4, which are connected by a channel 7 that allows the fabric 32 to pass horizontally; as Figure 2 , 9 As shown, several conveyor rollers A9 in the cooling space 6 are installed in the heating space 4. Driven by motor A13, the fabric 32 entering from the feed port 3 and heated by the steam generator 8 in the heating space 4 is horizontally conveyed through channel 7 to the cooling space 6. Figure 2 , 10 As shown, several vortex tube mechanisms 33 are evenly distributed laterally inside the housing 2. These mechanisms cool the fabric 32 entering the cooling space 6 by converting cold air obtained from general-purpose compressed air and simultaneously transfer the hot air obtained from converting general-purpose compressed air to the heating space 4. The vortex tube mechanism 33 has a structure that greatly increases its cooling capacity.

[0035] like Figure 2 , 6 As shown, cooling rollers A14 and B20, driven by motor B31, are installed in the cooling space 6 to clamp and wind the woolen fabric 32 from the heating space 4; Figure 6 , 7 As shown in Figure 8, cooling rollers A14 and B20 have a structure that utilizes the cold air generated by the vortex tube mechanism 33 to assist the vortex tube mechanism 33 in cooling the winding portion of the wool fabric 32; Figure 2 , 9 As shown, two conveyor rollers B29 are installed in the cooling space 6. Driven by motor B31, the fabric 32 to be cooled is horizontally conveyed to the next process through the discharge port 5.

[0036] like Figure 9 As shown, a gear A11 is installed on the roller shaft A10 where the transmission roller A9 is located; the two gears A11 on any two adjacent roller shafts A10 simultaneously mesh with the gear B12 on the housing 2; the roller shaft A10 where one transmission roller A9 is located is connected to the output shaft of the motor A13 on the housing 2.

[0037] like Figure 6 As shown, gear E27 is installed on the roller shaft B30 where the two transmission rollers B29 are located, and the two gears E27 on the roller shaft B30 where the two transmission rollers B29 are located mesh with gear F28 on the housing 2; the roller shaft B30 where one transmission roller B29 is located is connected to the output shaft of the motor B31 on the housing 2.

[0038] like Figure 6 , 7 As shown in Figure 8, the cooling roller A14 is installed inside the housing 2 via hollow pivot pins A16 at both ends; the cooling roller A14 has an annular air cavity 15 that communicates with the two pivot pins A16 and forms a thin wall between the outer cylindrical surface of the cooling roller A14; one pivot pin A16 is connected to the negative pressure pump 18 via a suction pipe A17 that rotatably engages with it; the hollow cooling roller B20 is installed inside the housing 2 via two hollow pivot pins B22 that communicate with it at both ends, and the cylindrical surface of the cooling roller B20 is densely covered with pins that communicate with it. The air vent 21; the pivot pin A16 without the suction pipe A17 is connected to the pivot pin B22 on the same side through the connecting pipe 19, and the two ends of the connecting pipe 19 are rotatably engaged with the pivot pin A16 and the pivot pin B22; both the pivot pin A16 with the suction pipe A17 and the pivot pin B22 on the same side are equipped with gears C25, and the two gears C25 mesh with each other; the gear C25 installed on the pivot pin B22 meshes with the gear D26 on the housing 2, and the gear D26 meshes with the gear E27 on a roller B30.

[0039] like Figure 6 As shown, the transmission ratio of gear C25 to gear E27 is 1:1, ensuring that the rotational speed of transmission roller A9 is equal to the rotational speed of cooling roller A14 and cooling roller B20, so that transmission roller B29 can effectively and timely transmit the cooled woolen fabric 32.

[0040] like Figure 5 , 6 As shown in Figure 7, an arc-shaped baffle 23 is installed inside the cooling roller B20 to block and seal the air holes 21 on the cooling roller B20 that are not covered by the woolen fabric 32; the baffle 23 is fixed to the frame outside the housing 2 by a fixed column 24 rotating in the pivot pin B22 where the gear C25 is located.

[0041] like Figure 3 As shown, the vortex tube mechanism 33 includes a circular tube A34, an air supply pipe 38, a circular tube B39, a motor C42, a circular tube C44, a motor D47, an air jet pipe 48, a column block A49, a cyclone separator 52, a water supply pipe 53, an insulation sleeve 54, and a column block B55, wherein... Figure 2 , 3As shown in Figure 4, a circular tube B39, which is rotatably fitted within a circular tube A34 installed inside the housing 2 to form an annular channel 7 and is driven by a motor C42, rotates in the same direction as the swirling flow generated by the swirling grooves 36; a circular tube C44, driven by a motor D47, rotates within the circular tube B39, rotates in the same direction as the swirling flow of the cold air entering it; within the cooling space 6 of the circular tube A34, several swirling grooves 36 are evenly distributed circumferentially on one end of the cylindrical surface, and a device is installed to cover all the swirling grooves 36. An annular air trough 37 is connected to an air pump via an air supply pipe 38; a column block A49 is installed inside the air outlet 35 of the heating space 4 of the circular tube A34, forming an annular channel 7 that only allows the outer swirling hot air to pass through; a column block B55 covered with an insulation sleeve 54 is installed on the end face of the column block A49, and the end face of the column block B55 has a conical groove 56 that reflects and guides the inner swirling cold air into the circular tube C44; the water outlet 50 at the end of the column block A49 is connected to a water pump via a water supply pipe 53, and a hydrocyclone 52 that atomizes the water is installed inside the water outlet 50; such as Figure 3 , 10 As shown, a jet pipe 48 is rotatably fitted on one end of the circular tube C44 located within the cooling space 6, which discharges cold air to the cloth 32 on the cooling roller B20 with a certain lateral width.

[0042] like Figure 3 As shown, a bearing 43 is fitted between the circular tube B39 and the circular tube C44; the outer cylindrical surface of the circular tube B39 is rough.

[0043] like Figure 3 As shown, motors C42 and D47 are mounted outside housing 2; the output shaft of motor C42 is rotatably engaged with a circular groove on housing 2, and gear H41 mounted on the output shaft of motor C42 meshes with gear G40 on circular tube B39; the output shaft of motor D47 is rotatably engaged with a circular groove on housing 2, and gear J46 mounted on the output shaft of motor D47 meshes with gear I45 on circular tube C44.

[0044] like Figure 2 , 3As shown, the cooling method is as follows: 1. Simultaneously start motors A13 and B31, steam generator 8, all motors C42 and D47, air pump, negative pressure pump 18, and water pump. The compressed air sent into the vortex tube mechanism by the air pump forms significantly cooled air at the jet pipe 48, while hot air is discharged into the heating space 4 at the air outlet 35 to participate in the heating process of the fabric 32 by the steam generator 8. 2. Motor B31 drives cooling rollers A14 and B20 to rotate. The negative pressure generated by the negative pressure pump 18 causes the cold air ejected from the jet pipe 48 to enter the air cavity 15 in the cooling roller A14 through the air hole 21 not blocked by the baffle 23 on the cooling roller B20, the pivot pin B22, the connecting pipe 19, and the pivot pin A16, thereby cooling the cylindrical surface of the cooling roller A14. 3. The woolen fabric 32 is placed on the transfer roller A9 through the feed port 3 and is driven by the motor A13 to rotate. It enters between the cooling roller A14 and the cooling roller B20 and is finally transferred to the discharge port 5 through the two transfer rollers B29. 4. During the process of the woolen fabric 32 passing through the cooling roller A14 and the cooling roller B20, the woolen fabric 32 is effectively cooled by the cold air discharged through the jet pipe 48 in the entire vortex tube mechanism 33. At the same time, the negative pressure generated in the cooling roller B20 causes the cold air to pass through the woolen fabric 32 into the cooling roller A14 and finally reach the air cavity 15 of the cooling roller A14 to cool the cylindrical surface of the cooling roller A14, further cooling the part of the woolen fabric 32 wrapped on the cooling roller A14 and the cooling roller B20.

[0045] like Figure 3 As shown, the column block A49 is installed inside the circular tube A34 by three circumferentially evenly distributed fixing plates 51.

[0046] The workflow of this invention is as follows:

[0047] When the present invention is needed to cool the heated fabric 32, motors A13, B31, steam generator 8, all motors C42, all motors D47, air pump, negative pressure pump 18, and water pump are started simultaneously. The compressed air sent into the air tank 37 by the air pump is swirled in the circular tube A34 by the action of the swirling groove 36 on the circular tube A34, forming a swirling flow moving towards the air outlet 35. The inner layer of the swirling flow with a large angular velocity drives the outer layer with a small angular velocity, causing the temperature of the outer layer of the swirling flow to rise while the temperature of the inner layer decreases. At the same time, the circular tube B39 rotates rapidly under the drive of motor C42 and drives the inner layer of the swirling flow to rotate faster, causing the temperature of the inner layer of the swirling flow to decrease significantly and the temperature of the outer layer of the swirling flow to increase significantly.

[0048] When the high-temperature airflow from the outer layer of the swirling flow reaches the outlet 35, it is pumped through the water supply pipe 53 to the outlet 50 of the column A49 and atomized by the swirling device 52. The atomized cold water is heated and vaporized by the high-temperature outer layer of the swirling flow that reaches the outlet 35 and discharged into the heating space 4 to heat the heating space 4 together with the steam generator 8.

[0049] The low-temperature airflow in the inner layer of the swirling flow reaches the conical groove 56 of the column block B55 and is reflected and guided into the circular tube C44. Driven by the motor D47, the circular tube C44, which has the same rotation direction and speed as the incoming low-temperature swirling airflow, effectively reduces the cooling loss of the low-temperature swirling flow. The low-temperature swirling flow in the circular tube C44 is discharged onto the cooling roller B20 through the jet pipe 48. The motor B31 drives the cooling rollers A14 and B20 to rotate. The negative pressure generated by the negative pressure pump 18 causes the cold air ejected from the jet pipe 48 to enter the air cavity 15 in the cooling roller A14 through the air hole 21 not blocked by the baffle 23, the pivot pin B22, the connecting pipe 19, and the pivot pin A16 on the cooling roller B20, thereby cooling the cylindrical surface of the cooling roller A14.

[0050] Then, the fabric 32 is placed on the transfer roller A9 through the feed port 3 and is driven by the motor A13 to enter between the cooling roller A14 and the cooling roller B20, and finally transferred to the discharge port 5 through the two transfer rollers B29.

[0051] As the fabric 32 passes through the cooling rollers A14 and B20, it is effectively cooled by the cold air discharged through the jet pipe 48 in the entire vortex tube mechanism 33. At the same time, the negative pressure generated in the cooling roller B20 causes the cold air to pass through the fabric 32 into the cooling roller A14 and finally reach the air cavity 15 of the cooling roller A14 to cool the cylindrical surface of the cooling roller A14, further cooling the part of the fabric 32 wrapped on the cooling rollers A14 and B20.

[0052] In summary, the beneficial effects of this invention are as follows: In this invention, the circular tube B39 of the vortex tube mechanism 33, driven by the motor C42, accelerates the internal flow in the circular tube A34, further reducing the internal flow temperature and simultaneously increasing the external flow temperature, thereby increasing the cooling capacity of the internal flow. Simultaneously, the circular tube C44, driven by the motor D47, maintains rotation consistent with the direction and speed of the entering internal flow vortex, reducing the cooling loss of the cooling internal flow entering the circular tube C44, effectively increasing the cooling capacity of the jet pipe 48, and improving the cooling efficiency of the fabric 32 after heating and processing.

[0053] In addition, the room temperature water that reaches the column A49 through the water supply pipe 53 is atomized to a certain extent under the action of the hydrocyclone 52. The atomized water vapor reaches the air outlet 35 of the circular tube A34 through the water outlet 50 of the column A49. Under the external heating of the increased temperature in the circular tube A34, it absorbs heat and is converted into hot steam. It then enters the heating space 4 of the shell 2 through the air outlet 35 at the end of the circular tube A34 to participate in the heating and processing of the fabric 32. This fully utilizes the heat generated by the vortex tube mechanism 33 to participate in the heating and processing of the fabric 32 without the heat generated by the external flow of the vortex tube mechanism 33 being lost or wasted, thereby improving the utilization rate of the heat generated by the vortex tube mechanism 33.

Claims

1. A refrigeration device for a steaming machine, characterized in that: It includes a housing, a steam generator, a transfer roller A, a motor A, a cooling roller A, a cooling roller B, a motor B, and a vortex tube mechanism. The housing, mounted on a support frame, is divided into a cooling space and a heating space, which are connected by a channel that allows the fabric to pass horizontally. The heating space contains several transfer rollers A that, driven by motor A, transfer the fabric that enters from the feed inlet and is heated by the steam generator in the heating space to the cooling space via the channel. The housing contains several vortex tube mechanisms that are evenly distributed laterally to cool the fabric entering the cooling space by converting general-purpose compressed air into cold air, and simultaneously transfer the hot air converted from general-purpose compressed air to the heating space. The cooling space is equipped with cooling rollers A and B, which clamp and wind the woolen fabric from the heating space under the drive of motor B. The cooling space is also equipped with two transfer rollers B, which are driven by motor B to horizontally transfer the woolen fabric to be cooled through the discharge port to the next process. The cooling roller A is installed inside the housing through hollow pivot pins A at both ends; the cooling roller A has an annular air cavity with a thin wall formed between the two pivot pins A and the outer cylindrical surface of the cooling roller A; one pivot pin A is connected to a negative pressure pump through a suction pipe A that is rotatably engaged with it; the hollow cooling roller B is installed inside the housing through two hollow pivot pins B that are connected to it at both ends, and the cylindrical surface of the cooling roller B is densely covered with air holes that are connected to it; the pivot pin A without suction pipe A is connected to the pivot pin B on the same side through a connecting pipe, and the two ends of the connecting pipe are rotatably engaged with pivot pin A and pivot pin B; The vortex tube mechanism includes a circular tube A, an air supply pipe, a circular tube B, a motor C, a circular tube C, a motor D, an air jet pipe, a column block A, a vortex generator, a water supply pipe, an insulation sleeve, and a column block B. Circular tube B, driven by motor C, is rotatably fitted within circular tube A, forming an annular channel. The rotation direction of circular tube B is consistent with the vortex direction generated by the vortex grooves. Circular tube C, driven by motor D, is rotatably fitted within circular tube B, and the rotation direction of circular tube C is consistent with the vortex direction of the cold air entering it. Several vortex grooves are evenly distributed circumferentially on one end of the cylindrical surface within the cooling space of circular tube A, and a system for controlling the flow of air is installed. The swirl channel covers an annular air channel connected to an air pump via an air supply pipe; a column A is installed inside the air outlet end of the heating space of the circular tube A, forming an annular channel that only allows the outer swirling hot air to pass through; a column B covered with an insulation sleeve is installed on the end face of column A, and the end face of column B has a conical groove that reflects and guides the inner swirling cold air into the circular tube C; the water outlet at the end of column A is connected to a water pump via a water supply pipe, and a swirl generator that atomizes the water is installed inside the water outlet; an air jet pipe that discharges cold air to the fabric on the cooling roller B with a certain lateral width is rotatably fitted on one end of the circular tube C located in the cooling space.

2. The refrigeration equipment for a steaming machine according to claim 1, characterized in that: Gear A is installed on the roller shaft A where the transmission roller A is located; two gears A on any two adjacent roller shafts A simultaneously mesh with gear B on the housing; the roller shaft A where one transmission roller A is located is connected to the output shaft of the motor A on the housing for transmission.

3. The refrigeration equipment for a steaming machine according to claim 2, characterized in that: Gear E is installed on the roller shaft B where the transmission roller B is located. The two gears E on the roller shaft B where the two transmission rollers B are located mesh with the gear F on the housing. The roller shaft B where one transmission roller B is located is connected to the output shaft of the motor B on the housing. Gear C is installed on the rotating pin A where the suction pipe A is installed and on the rotating pin B on the same side. The two gears C mesh with each other. The gear C installed on the rotating pin B meshes with the gear D on the housing. The gear D meshes with the gear E on one roller shaft B.

4. The refrigeration equipment for a steaming machine according to claim 3, characterized in that: The transmission ratio between gear C and gear E is 1:

1.

5. A refrigeration device for a steaming machine according to claim 4, characterized in that: The cooling roller B is equipped with an arc-shaped baffle that blocks and seals the air holes on the cooling roller B that are not covered by the felt fabric; the baffle is fixed to the frame outside the housing by a fixed column that rotates in the pivot pin B where the gear C is located.

6. The refrigeration equipment for a steaming machine according to claim 5, characterized in that: A bearing is fitted between the circular tube B and the circular tube C; the outer cylindrical surface of the circular tube B is rough.

7. A refrigeration device for a steaming machine according to claim 6, characterized in that: Motors C and D are mounted outside the housing; the output shaft of motor C is rotatably engaged with a circular groove on the housing, and gear H mounted on the output shaft of motor C meshes with gear G on circular tube B; the output shaft of motor D is rotatably engaged with a circular groove on the housing, and gear J mounted on the output shaft of motor D meshes with gear I on circular tube C.

8. The refrigeration method of the refrigeration equipment for a steaming machine according to claim 7, characterized in that: The cooling method is as follows:

1. Simultaneously start motors A and B, steam generator, all motors C and D, air pump, negative pressure pump and water pump. The compressed air sent into the vortex tube mechanism by the air pump forms cold air with a large cooling effect at the jet pipe, while hot air is discharged into the heating space at the air outlet to participate in the heating process of the fabric by the steam generator; 2. Motor B drives cooling rollers A and B to rotate. The negative pressure generated by the negative pressure pump causes the cold air ejected from the jet pipe to enter the air cavity in cooling roller A through the air hole on cooling roller B that is not blocked by the baffle, the pivot pin B, the connecting pipe and the pivot pin A to cool the cylindrical surface of cooling roller A; 3. The fabric is placed on the conveyor roller A through the feed port and enters between the cooling roller A and the cooling roller B through the conveyor roller A, which is driven by the motor A and rotates. Finally, it is conveyed to the discharge port through the two conveyor rollers B.

4. During the process of the fabric passing through cooling roller A and cooling roller B, the fabric is effectively cooled by the cold air discharged through the jet pipe in the entire vortex tube mechanism. At the same time, the negative pressure generated in cooling roller B causes the cold air to pass through the fabric and enter cooling roller A, and finally reach the air cavity of cooling roller A to cool the cylindrical surface of cooling roller A, further cooling the fabric part wrapped on cooling roller A and cooling roller B.

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