A cooling mechanism for stainless steel welded pipe production

Abstract

The present invention discloses a cooling mechanism for stainless steel welded pipe production, which relates to the technical field of stainless steel welded pipe production, and specifically comprises an isolation box, wherein the inner cavity of the isolation box is provided with an air spray plate and a partition plate, wherein the air spray plate and the partition plate divide the inner cavity of the isolation box into a pre-cooling cavity, a cooling cavity and a temperature return cavity, wherein the cooling cavity is located between the pre-cooling cavity and the temperature return cavity, wherein an air inlet groove is provided at the top of the pre-cooling cavity, wherein the air inlet end of the air inlet groove is located at the top of the inner cavity of the cooling cavity, and the inner cavity of the air inlet groove is connected to the bottom end of the inner cavity of the pre-cooling cavity through a connecting pipe, and the bottom of the inner cavity of the air inlet groove is evenly provided with through holes. The cooling mechanism for stainless steel welded pipe production cools the stainless steel welded pipe by a rotary spraying method, and during the cooling process, uses the cooling air to drive the heat in the cooling cavity and blow away the generated water vapor, thereby avoiding heat exchange between the spray water and the water vapor and the air, and ensuring the use effect of the spray water.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel welded pipe production, in particular to a cooling mechanism for stainless steel welded pipe production. Background Art

[0002] Stainless steel welded pipe, referred to as welded pipe, is a steel pipe made by curling steel or steel strip through welding process. During the production process, stainless steel welded pipe needs to be cooled to prevent high temperature oxidation, improve corrosion resistance, avoid hardening, control internal stress, improve physical properties and improve processing performance.

[0003] In the related art, spraying is usually used to cool stainless steel welded pipes. However, during the spraying process, the spray water first contacts with the air. When the spray water contacts with the air, the air will exchange heat with the spray water, and then the temperature of the spray water will change when the spray water contacts with the stainless steel welded pipe, affecting the spraying effect. When the spray water contacts with the high-temperature stainless steel welded pipe, part of the spray water will evaporate. Due to the low density of water vapor, the water vapor will float upward. When the water vapor contacts with the falling spray water, the water vapor will exchange heat with the spray water, increase the temperature of the spray water, and further affect the spraying effect. Based on this, the present application proposes a cooling mechanism for the production of stainless steel welded pipes. Summary of the invention

[0004] The present invention provides a cooling mechanism for stainless steel welded pipe production, which solves the problem in the above background technology that both air and evaporated water vapor will affect the temperature of spray water and thus affect the cooling efficiency of the stainless steel welded pipe.

[0005] The present invention provides the following technical solutions: a cooling mechanism for stainless steel welded pipe production, comprising an isolation box, the inner cavity of the isolation box is provided with an air spray plate and a partition plate, the air spray plate and the partition plate divide the inner cavity of the isolation box into a pre-cooling cavity, a cooling cavity and a temperature return cavity, the cooling cavity is located between the pre-cooling cavity and the temperature return cavity, the top of the pre-cooling cavity is provided with an air inlet slot, the air inlet end of the air inlet slot is located at the top of the inner cavity of the cooling cavity, and the inner cavity of the air inlet slot is connected to the bottom end of the inner cavity of the pre-cooling cavity through a connecting pipe, the bottom of the inner cavity of the air inlet slot is evenly provided with through holes, one side of the lower end of the pre-cooling cavity is provided with an exhaust fan, and the air inlet end of the exhaust fan is connected with the inner cavity of the pre-cooling cavity through an exhaust pipe;

[0006] A cooling component is provided in the inner cavity of the cooling chamber, and the cooling component includes a rotating spray ring and a wind shield, wherein the wind shield is located between two adjacent rotating spray rings, and a blowing ring is provided in the middle of the inner cavity of the wind shield, and the blowing ring is adapted to the rotating spray ring; a water cooler, a blower 1 and an air cooler are provided outside the cooling chamber, the water outlet end of the water cooler is connected to the rotating spray ring through a spray water pipe, the air outlet end of the blower 1 is connected to the air inlet end of the air cooler, and the air outlet end of the air cooler is respectively connected to the spray plate and the blowing ring; a temperature meter is provided on the spray plate.

[0007] Preferably, the air inlet end of the air inlet slot is located on a side of the cooling cavity away from the air spray plate, and a water baffle is fixedly connected to the top of the cooling cavity away from the air spray plate, and the water baffle is adapted to the air inlet end of the air inlet slot.

[0008] Preferably, a drainage pipe is provided on one side of the bottom end of both the cooling chamber and the temperature return chamber, an air inlet pipe 1 is provided on one side of the inner cavity of the air spray plate, the other end of the air inlet pipe 1 is connected to the air outlet end of the air cooler, and an air inlet pipe 2 is provided on one side of the inner cavity of the blowing ring, the other end of the air inlet pipe 2 is connected to the air inlet pipe 1.

[0009] Preferably, the rotating spray ring is movably connected to the cooling chamber, the outer ring of the rotating spray ring is movably connected to a support ring, the support ring is fixedly connected to the cooling chamber, the support ring is a hollow structure, a water inlet pipe is provided on one side of the inner cavity of the support ring, the other end of the water inlet pipe is connected to the spray water pipe, the rotating spray ring is a hollow structure, a water permeable net ring is inlaid on the outer side wall of the rotating spray ring, the water permeable net ring is located in the middle of the inner cavity of the support ring; the inner wall of the rotating spray ring is evenly provided with nozzles.

[0010] Preferably, a driving structure is provided in the cooling chamber, and the rotating spray ring is driven by the driving structure.

[0011] Preferably, a support roller is connected to one side of the wind shield plate, and the other end of the support roller is fixedly connected to the inner wall of the isolation box, so that a ventilation channel is formed between the wind shield plate and the inner wall of the isolation box.

[0012] Preferably, a wiper plate adapted to the stainless steel welded pipe is provided on one side of the rewarming chamber close to the air spray plate, the wiper plate is connected to the inner wall of the isolation box, a rewarming plate is provided above the wiper plate, spray holes are evenly arranged at the bottom of the inner cavity of the rewarming plate, and the inner cavity of the rewarming plate is connected to blower 2 through a rewarming pipe; a water absorption ring adapted to the stainless steel welded pipe is provided on the other side of the rewarming chamber, water squeezing plates are provided on both sides of the water absorption ring, and the water squeezing plates are connected to the isolation box through an electric telescopic rod.

[0013] Preferably, the wiper blade includes two semicircular wiper blocks, and the water absorption ring includes two semicircular water absorption blocks.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The cooling mechanism for the production of stainless steel welded pipes adopts a rotary spraying method to cool the stainless steel welded pipes. During the cooling process, the cooling air is used to drive the heat in the cooling chamber and blow away the generated water vapor, avoiding heat exchange between the spray water and the water vapor and air, thereby ensuring the use effect of the spray water.

[0016] 2. The cooling mechanism for the production of stainless steel welded pipes is provided with an exhaust fan, which can extract the gas in the pre-cooling chamber. Under the action of negative pressure, the gas in the cooling chamber and the temperature return chamber enters the inner cavity of the air inlet slot, and the gas in the air inlet slot enters the pre-cooling chamber through the through hole. The gas contacts the stainless steel welded pipe to achieve pre-cooling of the stainless steel welded pipe, thereby improving the cooling efficiency of the mechanism, and can realize the reuse of the gas in the temperature return chamber and the gas in the cooling chamber, thereby improving the energy utilization rate of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 The structure of the present invention Figure 2 Schematic diagram looking up;

[0020] Figure 4 The structure of the present invention Figure 2 Front view schematic diagram;

[0021] Figure 5 It is a schematic diagram of the structural cooling assembly of the present invention;

[0022] Figure 6 This is a schematic diagram of a windshield structure of the present invention;

[0023] Figure 7 It is a cross-sectional schematic diagram of the structural support ring of the present invention.

[0024] In the figure: 1. Isolation box; 2. Air spray plate; 3. Dividing plate; 4. Pre-cooling chamber; 5. Cooling chamber; 6. Reheating chamber; 7. Air inlet slot; 8. Exhaust fan; 9. Water baffle; 10. Blower 1; 11. Air inlet pipe 1; 12. Air inlet pipe 2; 13. Blower 2; 14. Reheating plate; 15. Temperature detector; 16. Electric telescopic rod; 17. Water absorption ring; 18. Wiper; 19. Water cooler; 20. Drain pipe; 21. Air cooler; 22. Return temperature pipe; 23. Servo motor; 24. Spray water pipe; 25. Rotating shaft; 26. Gear 1; 27. Wind shield; 28. Gear 2; 29. ​​Support ring; 30. Rotating spray ring; 31. Water inlet pipe; 32. Blowing ring; 33. Permeable net ring; 34. Sprinkler; 35. Exhaust pipe; 36. Support roller; 37. Water squeezing plate; 38. Connecting pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention provides a cooling mechanism for the production of stainless steel welded pipes, comprising an isolation box 1, an inner cavity of the isolation box 1 is provided with an air spray plate 2 and a dividing plate 3, the air spray plate 2 and the dividing plate 3 divide the inner cavity of the isolation box 1 into a pre-cooling cavity 4, a cooling cavity 5 and a temperature return cavity 6, the cooling cavity 5 is located between the pre-cooling cavity 4 and the temperature return cavity 6, a cooling component is provided in the inner cavity of the cooling cavity 5, the cooling component comprises a rotating spray ring 30 and a wind shield plate 27, the rotating spray ring 30 is movably connected to the cooling cavity 5, the outer ring of the rotating spray ring 30 is movably connected to a support ring 29, the support ring 29 is fixedly connected to the cooling cavity 5, the support ring 29 is a hollow structure, a water inlet pipe 31 is provided on one side of the inner cavity of the support ring 29, the other end of the water inlet pipe 31 is connected to the spray water pipe 24, a water cooler 19 is provided outside the cooling cavity 5, and the water outlet end of the water cooler 19 is connected to the cooling cavity 5. The other end of the spray water pipe 24 is connected. When the mechanism is in use, the spray water for cooling the stainless steel welded pipe can enter the inner cavity of the support ring 29 through the water cooler 19, the spray water pipe 24 and the water inlet pipe 31. The rotating spray ring 30 is a hollow structure. A permeable mesh ring 33 is inlaid on the outer wall of the rotating spray ring 30. The permeable mesh ring 33 is located in the middle of the inner cavity of the support ring 29. Through the setting of the permeable mesh ring 33, the water in the inner cavity of the support ring 29 can enter the inner cavity of the rotating spray ring 30 through the permeable mesh ring 33; the inner wall of the rotating spray ring 30 is evenly provided with nozzles 34, and the water in the inner cavity of the rotating spray ring 30 is sprayed out through the nozzles 34. When the mechanism is in use, the stainless steel welded pipe moves in the middle of the inner cavity of the rotating spray ring 30, and the cooling water sprayed by the nozzles 34 can be sprayed onto the stainless steel welded pipe to achieve cooling of the stainless steel welded pipe. The water cooler 19 can further cool the spray water when it is working. In some embodiments of the present application, the water cooler 19 uses fins to increase the heat dissipation area, thereby quickly reducing the temperature of the spray water.

[0027] A driving structure is provided in the cooling chamber 5, and the rotating spray ring 30 is driven by the driving structure. In some embodiments of the present application, the driving structure includes a rotating shaft 25 movably connected to the air spray plate 2, a gear 26 fixedly connected to the rotating shaft 25, a gear 28 fixedly connected to the outer ring of the rotating spray ring 30, and a servo motor 23 fixedly connected to the air spray plate 2. The end of the output shaft of the servo motor 23 is connected to the end of the rotating shaft 25 through a reducer, and the gear 1 26 is meshed with the gear 2 28. When the servo motor 23 rotates, it can drive the rotating shaft 25 connected thereto to rotate, and the rotating shaft 25 drives the gear 1 26 fixedly connected thereto to rotate. The gear 1 26 drives the rotating spray ring 30 to rotate through the gear 2 28 meshed therewith, thereby improving the uniformity of spraying water.

[0028] A support roller 36 is connected to one side of the wind shield 27, and the other end of the support roller 36 is fixedly connected to the inner wall of the isolation box body 1, so that a ventilation channel is formed between the wind shield 27 and the inner wall of the isolation box body 1. The size of the wind shield 27 can be set according to needs and is not limited here. The wind shield 27 is located between two adjacent rotating spray rings 30, and a blowing ring 32 is arranged in the middle of the inner cavity of the wind shield 27, and the blowing ring 32 is adapted to the rotating spray ring 30. A blower 10 and an air cooler 21 are arranged outside the cooling chamber 5, and the air outlet end of the blower 10 is connected to the air inlet end of the air cooler 21, and the air outlet end of the air cooler 21 is respectively connected to the air spray plate 2 and the blowing ring 32; an air inlet pipe 11 is arranged on one side of the inner cavity of the air spray plate 2, and the other end of the air inlet pipe 11 is connected to the air outlet end of the air cooler 21, and an air inlet pipe 11 is arranged on one side of the inner cavity of the blowing ring 32 The other end of the air inlet pipe 12 is connected to the air inlet pipe 11. Through the setting of the blower 10, the operation of the blower 10 can blow the outside air into the inner cavity of the air cooler 21. During the flow of air in the air cooler 21, the air cooler 21 cools the air. The cooled air enters the inner cavity of the air spray plate 2 through the air inlet pipe 11. The cooled air enters the inner cavity of the blowing ring 32 through the air inlet pipe 12. The side of the air spray plate 2 close to the rotating spray ring 30 and the side of the blowing ring 32 away from the air spray plate 2 are both provided with air spray holes. The cooled air is sprayed into the cooling chamber 5 through the air spray holes, taking away the heat in the cooling chamber 5, improving the spray cooling effect, and the gas sprayed from the blowing ring 32 can blow away the water vapor, change the moving direction of the water vapor, and avoid the water vapor moving up and affecting the temperature of the spray water.

[0029] A temperature detector 15 is provided on the air spray plate 2, and the temperature of the cooled stainless steel welded pipe can be detected by the temperature detector 15. According to the detection result, the working frequency of the water cooler 19 and the air cooler 21 can be controlled to reduce the energy consumption of the mechanism while ensuring that the stainless steel welded pipe achieves the cooling effect.

[0030] From the above description, it can be seen that the cooling mechanism uses a rotary spraying method to cool the stainless steel welded pipe, and during the cooling process, the cooling air is used to drive the heat in the cooling chamber and blow away the generated water vapor, avoiding heat exchange between the spray water and the water vapor and air, thereby ensuring the use effect of the spray water.

[0031] The top of the pre-cooling chamber 4 is provided with an air inlet slot 7, the air inlet end of the air inlet slot 7 is located at the top of the inner cavity of the cooling chamber 5, the air inlet end of the air inlet slot 7 is located at the side of the cooling chamber 5 away from the air spray plate 2, and the bottom of the inner cavity of the air inlet slot 7 is evenly provided with through holes, through which the fluid in the cooling chamber 5 can enter the air inlet slot 7. A water baffle 9 is fixedly connected to the top of the cooling chamber 5 away from the air spray plate 2, and the water baffle 9 is adapted to the air inlet end of the air inlet slot 7.

[0032] An exhaust fan 8 is provided on one side of the lower end of the pre-cooling chamber 4. The air inlet end of the exhaust fan 8 is connected with the inner cavity of the pre-cooling chamber 4 through the exhaust pipe 35. When the cooling mechanism is in use, the exhaust pipe 35 is located below the stainless steel welded pipe. Through the setting of the exhaust fan 8, the exhaust fan 8 can extract the gas in the pre-cooling chamber 4. Under the action of negative pressure, the gas in the air inlet slot 7 enters the pre-cooling chamber 4 through the through hole, and the gas contacts the stainless steel welded pipe to achieve pre-cooling of the stainless steel welded pipe, thereby improving the energy utilization rate of the mechanism.

[0033] A wiper plate 18 adapted to the stainless steel welded pipe is provided on one side of the temperature return chamber 6 close to the air spray plate 2. The wiper plate 18 is connected to the inner wall of the isolation box 1. The wiper plate 18 includes two semicircular wiper blocks. When the mechanism is in use, the wiper plate 18 can scrape off the water adhering to the stainless steel welded pipe during the movement of the stainless steel welded pipe.

[0034] A reheating plate 14 is arranged above the wiper 18, and spray holes are evenly arranged at the bottom of the inner cavity of the reheating plate 14. The inner cavity of the reheating plate 14 is connected to the blower 13 through the reheating pipe 22; the blower 13 is located outside the reheating chamber 6, and through the setting of the blower 13, the blower 13 can blow the outside air into the inner cavity of the reheating plate 14, and the air in the inner cavity of the reheating plate 14 can be sprayed onto the stainless steel welded pipe through the spray holes, so as to increase the temperature of the stainless steel welded pipe to room temperature, thereby avoiding the stainless steel welded pipe from being heated. When separated from the mechanism, water vapor in the air condenses when it contacts the stainless steel welded pipe, which facilitates the subsequent processing of the stainless steel welded pipe and reduces the air temperature; the inner cavity of the air inlet groove 7 is connected to the bottom end of the inner cavity of the pre-cooling chamber 4 through a connecting pipe 38, and the connecting pipe 38 can be embedded in the isolation box 1. One end of the connecting pipe 38 extends to the inner cavity of the air inlet groove 7, and the other end of the connecting pipe 38 extends to the bottom end of the inner cavity of the temperature return chamber 6. The gas in the temperature return chamber 6 can enter the inner cavity of the air inlet groove 7.

[0035] The other side of the temperature return chamber 6 is provided with a water absorption ring 17 adapted to the stainless steel welded pipe. The water absorption ring 17 includes two semicircular water absorption blocks. The water absorption ring 17 is used to scrape off the residual water on the surface of the stainless steel welded pipe. Both sides of the water absorption ring 17 are provided with water squeezing plates 37, which are connected to the isolation box 1 through the electric telescopic rod 16. Through the setting of the electric telescopic rod 16, the extension and contraction of the electric telescopic rod 16 can change the position of the water squeezing plate 37 connected thereto. The water squeezing plate 37 can squeeze out excess water in the water absorption ring 17, which is convenient for the use of the water absorption ring 17. The material of the water absorption ring 17 can be sponge.

[0036] A drainage pipe 20 is provided on one side of the bottom of both the cooling chamber 5 and the temperature return chamber 6 , and the drainage pipe 20 can be used to drain excess water in the cooling chamber 5 or the temperature return chamber 6 .

[0037] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0038] In summary: when the cooling mechanism for the production of stainless steel welded pipe is used, the stainless steel welded pipe to be cooled passes through the inner cavity of the cooling mechanism. Figures 1 to 4 As shown, the spray water for cooling the stainless steel welded pipe can enter the inner cavity of the support ring 29 through the water cooler 19, the spray water pipe 24 and the water inlet pipe 31. The water in the inner cavity of the support ring 29 can enter the inner cavity of the rotating spray ring 30 through the permeable mesh ring 33. The water in the inner cavity of the rotating spray ring 30 is sprayed out through the nozzle 34. The cooling water sprayed by the nozzle 34 can be sprayed onto the stainless steel welded pipe to achieve cooling of the stainless steel welded pipe. In this process, the driving structure drives the rotating spray ring 30 to rotate to improve the uniformity of the spray water spraying. The blower 10 works, and the blower 10 blows the outside air into the air cooler 21. In the inner cavity, when the air flows in the air cooler 21, the air cooler 21 cools the air entering, and the cooled air enters the inner cavity of the air spray plate 2 through the air inlet pipe 11, and the cooled air enters the inner cavity of the blowing ring 32 through the air inlet pipe 2 12. The cooled air in the inner cavities of the air spray plate 2 and the blowing ring 32 is sprayed into the cooling cavity 5 through the air spray holes, taking away the heat in the cooling cavity 5, thereby improving the spray cooling effect, and the gas sprayed from the blowing ring 32 can blow away the water vapor, change the moving direction of the water vapor, avoid the water vapor from moving upward and affecting the temperature of the spray water, and ensure the cooling effect of the spray water.

[0039] The exhaust fan 8 works and can extract the gas in the pre-cooling chamber 4. Under the action of negative pressure, the gas in the cooling chamber 5 and the temperature return chamber 6 enters the inner cavity of the air inlet groove 7. The gas in the air inlet groove 7 enters the pre-cooling chamber 4 through the through hole. The gas contacts the stainless steel welded pipe to achieve pre-cooling of the stainless steel welded pipe, thereby improving the energy utilization rate of the mechanism.

[0040] The cooled stainless steel welded pipe enters the rewarming chamber 6, and the scraper 18 and the water absorption ring 17 are used in combination to clean the water stains on the surface of the stainless steel welded pipe. The air sprayed by the rewarming plate 14 raises the temperature of the stainless steel welded pipe to room temperature, avoiding condensation when the water vapor in the air contacts the stainless steel welded pipe when the stainless steel welded pipe is separated from the mechanism, thereby facilitating the subsequent processing of the stainless steel welded pipe.

[0041] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cooling mechanism for stainless steel welded pipe production, comprising an isolation box (1), characterized in that: The inner cavity of the isolation box (1) is provided with an air spray plate (2) and a partition plate (3), and the air spray plate (2) and the partition plate (3) divide the inner cavity of the isolation box (1) into a pre-cooling cavity (4), a cooling cavity (5) and a temperature return cavity (6). The cooling cavity (5) is located between the pre-cooling cavity (4) and the temperature return cavity (6). The top of the pre-cooling cavity (4) is provided with an air inlet groove (7), and the air inlet end of the air inlet groove (7) is located at the top of the inner cavity of the cooling cavity (5), and the inner cavity of the air inlet groove (7) is connected to the bottom end of the inner cavity of the pre-cooling cavity (4) through a connecting pipe (38). The bottom of the inner cavity of the air inlet groove (7) is evenly provided with through holes. An exhaust fan (8) is provided on one side of the lower end of the pre-cooling cavity (4), and the air inlet end of the exhaust fan (8) is connected to the inner cavity of the pre-cooling cavity (4) through an exhaust pipe (35); A cooling assembly is provided in the inner cavity of the cooling cavity (5), and the cooling assembly includes a rotating spray ring (30) and a wind shield (27), wherein the wind shield (27) is located between two adjacent rotating spray rings (30), and a blowing ring (32) is provided in the middle of the inner cavity of the wind shield (27), and the blowing ring (32) is adapted to the rotating spray ring (30); a water cooler (19), a blower (10) and an air cooler (21) are provided outside the cooling cavity (5), the water outlet end of the water cooler (19) is connected to the rotating spray ring (30) through a spray water pipe (24), the air outlet end of the blower (10) is connected to the air inlet end of the air cooler (21), and the air outlet end of the air cooler (21) is connected to the spray plate (2) and the blowing ring (32), respectively; and a temperature measuring device (15) is provided on the spray plate (2).

2. A cooling mechanism for producing stainless steel welded pipes according to claim 1, characterized in that: The air inlet end of the air inlet slot (7) is located on a side of the cooling chamber (5) away from the air spray plate (2), and a water baffle (9) is fixedly connected to the top end of the cooling chamber (5) away from the air spray plate (2), and the water baffle (9) is adapted to the air inlet end of the air inlet slot (7).

3. A cooling mechanism for producing stainless steel welded pipes according to claim 1, characterized in that: A drainage pipe (20) is provided on one side of the bottom end of both the cooling chamber (5) and the temperature return chamber (6); an air inlet pipe (11) is provided on one side of the inner cavity of the air spray plate (2); the other end of the air inlet pipe (11) is connected to the air outlet end of the air cooler (21); and an air inlet pipe (12) is provided on one side of the inner cavity of the air blowing ring (32); the other end of the air inlet pipe (12) is connected to the air inlet pipe (11).

4. A cooling mechanism for producing stainless steel welded pipes according to claim 1, characterized in that: The rotating spray ring (30) is movably connected to the cooling chamber (5); the outer ring of the rotating spray ring (30) is movably connected to a support ring (29); the support ring (29) is fixedly connected to the cooling chamber (5); the support ring (29) is a hollow structure; a water inlet pipe (31) is provided on one side of the inner cavity of the support ring (29); the other end of the water inlet pipe (31) is connected to the spray water pipe (24); the rotating spray ring (30) is a hollow structure; a water permeable net ring (33) is inlaid on the outer wall of the rotating spray ring (30); the water permeable net ring (33) is located in the middle of the inner cavity of the support ring (29); and nozzles (34) are evenly arranged on the inner wall of the rotating spray ring (30).

5. The cooling mechanism for producing stainless steel welded pipe according to claim 1, characterized in that: A driving structure is provided in the cooling chamber (5), and the rotating spray ring (30) is driven by the driving structure.

6. A cooling mechanism for producing stainless steel welded pipes according to claim 1, characterized in that: A support roller (36) is connected to one side of the wind shield (27), and the other end of the support roller (36) is fixedly connected to the inner wall of the isolation box (1), so that a ventilation channel is formed between the wind shield (27) and the inner wall of the isolation box (1).

7. A cooling mechanism for producing stainless steel welded pipes according to claim 1, characterized in that: A water scraper (18) adapted to the stainless steel welded pipe is provided on one side of the reheat chamber (6) close to the air spray plate (2), the water scraper (18) is connected to the inner wall of the isolation box (1), a reheat plate (14) is provided above the water scraper (18), the bottom of the inner cavity of the reheat plate (14) is evenly provided with spray holes, and the inner cavity of the reheat plate (14) is connected to a second blower (13) through a reheat pipe (22); a water absorption ring (17) adapted to the stainless steel welded pipe is provided on the other side of the reheat chamber (6), water squeezing plates (37) are provided on both sides of the water absorption ring (17), and the water squeezing plates (37) are connected to the isolation box (1) through an electric telescopic rod (16).

8. A cooling mechanism for producing stainless steel welded pipes according to claim 7, characterized in that: The wiper blade (18) comprises two semicircular wiper blocks, and the water absorption ring (17) comprises two semicircular water absorption blocks.

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