Circulating water cooling injection pipe structure

Abstract

The utility model belongs to the technical field of injection pipes, and particularly relates to a circulating water cooling injection pipe structure which comprises a bag type dust collector, a plurality of injection openings are formed in the top of the right side of the bag type dust collector, and the injection openings are fixedly communicated with injection pipes. According to the circulating water cooling assembly, the injection pipe is sleeved with the water cooling sleeve, the water cooling cavity is formed in the water cooling sleeve, the water outlet and the water inlet are formed in the water cooling cavity, low-temperature water is supplemented through the water inlet, cooling water can be heated through heat on the wall of the injection pipe, and hot water is taken out through the water outlet; and a plurality of second heat exchange fins are fixedly connected to the inner wall of the water cooling cavity, and a plurality of first heat exchange fins are fixedly connected to the outer surface of the water cooling sleeve, so that heat exchange between the injection pipe wall and the outside is accelerated, and the situation that the heat of the injection pipe wall is transferred to the pulse valve, and consequently the pulse valve is damaged is avoided.

Description

Technical Field

[0001] This utility model relates to the field of jet pipe technology, specifically a circulating water cooling jet pipe structure. Background Technology

[0002] Baghouse dust collectors are highly efficient dry dust collection devices widely used in industrial dust control. They capture particulate matter from dust-laden gas through filter bags, and the purified clean gas is discharged from the outlet. The main structure includes a housing (divided into a clean air chamber, a filter chamber, and a dust hopper), filter bags and cages, a cleaning system, a dust discharge system, and an electrical control system. During operation, dust-laden gas enters the filter chamber, where dust is trapped by the filter bags. Clean gas passes through the filter bags into the clean air chamber and is discharged. A pulse-jet cleaning system periodically blows compressed air to remove dust from the filter bags, ensuring continuous and efficient dust collection. Baghouse dust collectors have advantages such as high dust collection efficiency, strong adaptability, and stable operation, making them important equipment for industrial environmental protection. The pulse-jet pipe is the conduit in a baghouse dust collector used to remove dust from the filter bags by high-speed jets of compressed air.

[0003] Since industrial dust is usually quite hot, in existing baghouse dust collectors, the temperature of the dust is transferred to the blowpipe through the housing during use. If the dust collector operates at temperatures above 800℃ for a long time, the high temperature is transferred to the pulse valve through the blowpipe, causing the pulse valve to malfunction. This prevents the pulse cleaning system from operating normally and ultimately affects the dust removal work. To avoid damage to the pulse valve in the high-temperature working environment of the dust collector, we propose a circulating water-cooled blowpipe structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a circulating water-cooled jet pipe structure. A circulating water cooling assembly is installed on the jet pipe, and this assembly is fitted with a water-cooling sleeve. The water-cooling sleeve has a water-cooling chamber with an outlet and an inlet. Low-temperature water is introduced through the inlet, and the heat from the jet pipe wall heats the cooling water. The hot water is then carried out through the outlet and cooled by an external chiller. Several second heat exchange fins are fixedly connected to the inner wall of the water-cooling chamber, and several first heat exchange fins are fixedly connected to the outer surface of the water-cooling sleeve. This accelerates heat exchange between the jet pipe wall and the external environment, preventing heat transfer from the jet pipe wall to the pulse valve and thus avoiding damage to the pulse valve. This ensures the operation of the pulse jet system in the dust collector and solves the problems mentioned earlier.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating water cooling jet pipe structure, comprising a bag filter, wherein an air inlet and an ash outlet are respectively provided on the right side and bottom side of the bag filter, an ash hopper is provided below the bag filter, the top of the ash hopper is fixedly connected to the ash outlet, an air outlet is provided on the rear side of the bag filter, and a fan is fixedly installed on the rear side of the bag filter, the input end of the fan is fixedly connected to the air outlet, and a plurality of jet nozzles are provided on the top right side of the bag filter, all of which are fixedly connected to... The bag filter has a pulse cleaning assembly installed on its right side, and a circulating water cooling assembly is installed on each of the pulse pipes. The circulating water cooling assembly includes a water-cooled sleeve, which is fitted onto the pulse pipe. The water-cooled sleeve has a water-cooled cavity inside, and a water outlet and a water inlet are respectively opened at the top and bottom of the water-cooled sleeve. The water outlet and the water inlet are connected to the water-cooled cavity. A number of second heat exchange fins are fixedly connected to the inner wall of the water-cooled cavity, and a number of first heat exchange fins are fixedly connected to the outer surface of the water-cooled sleeve. A fixing mechanism is installed on the right side of the water-cooled sleeve.

[0006] Preferably, the fixing mechanism includes a fixing sleeve, which is fixedly connected to the right side of the water-cooling sleeve. The fixing sleeve has several threaded holes, and bolts are threaded through the several threaded holes. The side of the bolts near the blowpipe abuts against the outer surface of the blowpipe.

[0007] Preferably, the pulse cleaning assembly includes an air storage cylinder. A mounting frame is fixedly installed on the right side of the bag filter, and the air storage cylinder is fixedly installed on the mounting frame. Several air outlets are opened on the right side of the air storage cylinder. An air outlet pipe is fixedly connected to the air outlet. A pulse valve is fixedly connected to the output end of the air outlet pipe. The output end of the pulse valve is fixedly connected to the input end of the blowpipe.

[0008] Preferably, a mounting plate is fixedly installed on the right side of the bag filter, and an air compressor is fixedly installed on the top of the mounting plate. The output end of the air compressor is fixedly connected to an air inlet pipe, and the output end of the air inlet pipe is fixedly connected to the input end of the air storage cylinder.

[0009] Preferably, a refrigeration unit is also fixedly installed on the top of the mounting plate, and an inlet pipe and an outlet pipe are fixedly connected to the rear side of the refrigeration unit. A plurality of the inlets are fixedly connected to the inlet pipe, and a plurality of the outlets are fixedly connected to the outlet pipe.

[0010] Preferably, a pressure gauge and a safety valve are respectively provided on the front and rear sides of the top of the gas storage cylinder.

[0011] This invention provides a circulating water cooling spray pipe structure. Compared with the prior art, it has the following advantages:

[0012] 1. This circulating water-cooled jet pipe structure includes a circulating water cooling component installed on the jet pipe. The circulating water cooling component is fitted onto the jet pipe with a water-cooling sleeve. The water-cooling sleeve has a water-cooling chamber with an outlet and an inlet. Low-temperature water is added through the inlet, and the heat from the jet pipe wall heats the cooling water. The hot water is then carried out through the outlet and cooled by an external chiller. Several second heat exchange fins are fixedly connected to the inner wall of the water-cooling chamber, and several first heat exchange fins are fixedly connected to the outer surface of the water-cooling sleeve. This accelerates the heat exchange between the jet pipe wall and the outside environment, prevents heat transfer from the jet pipe wall to the pulse valve, and avoids damage to the pulse valve, thus ensuring the operation of the pulse jet system in the dust collector. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear view of the main body structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the circulating water cooling component of this utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the water-cooled sleeve of this utility model;

[0017] Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 6 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Baghouse dust collector; 2. Air inlet; 3. Ash outlet; 4. Ash hopper; 5. Air outlet; 6. Fan; 7. Water-cooled sleeve; 8. Water inlet; 9. Water outlet; 10. First heat exchange fin; 11. Fixing sleeve; 12. Threaded hole; 13. Bolt; 14. Pulse jet pipe; 15. Water-cooled cavity; 16. Second heat exchange fin; 17. Pulse jet nozzle; 18. Water outlet pipe; 19. Pulse valve; 20. Air outlet pipe; 21. Refrigeration unit; 22. Air compressor; 23. Mounting plate; 24. Air storage cylinder; 25. Air inlet pipe; 26. Pressure gauge; 27. Safety valve; 28. Water inlet pipe; 29. ​​Air outlet; 30. Mounting bracket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a circulating water cooling jet pipe structure, including a bag filter 1, an air inlet 2 and an ash outlet 3 respectively opened on the right side and bottom side of the bag filter 1, an ash hopper 4 is arranged below the bag filter 1, the top of the ash hopper 4 is fixedly connected to the ash outlet 3, an air outlet 5 is opened on the rear side of the bag filter 1, and a fan 6 is fixedly installed on the rear side of the bag filter 1, the input end of the fan 6 is fixedly connected to the air outlet 5, a plurality of jet nozzles 17 are opened on the top right side of the bag filter 1, each of the plurality of jet nozzles 17 is fixedly connected to a jet pipe 14, a pulse cleaning assembly is installed on the right side of the bag filter 1, and a circulating water cooling assembly is installed on each of the plurality of jet pipes 14.

[0022] When the bag filter 1 is running, high-temperature dust is drawn in through the inlet 2, filtered by the filter bags, and carried away by the fan 6 through the outlet 5. The filtered dust enters the ash hopper 4 through the ash outlet 3 for collection. After the bag filter 1 has been working for a long time, the dust accumulated on the surface of the filter bags is cleaned by the pulse cleaning assembly by injecting compressed gas through the blowpipe 14 into the bag filter 1. If the bag filter 1 is running at a temperature above 800℃ for a long time, the high temperature will be transmitted to the pulse valve 19 through the blowpipe 14, causing the pulse valve 19 to malfunction. This will prevent the pulse cleaning assembly from operating normally and ultimately affect the dust removal work. Therefore, a circulating water cooling assembly is installed on the blowpipe 14 to remove the heat from the pipe wall of the blowpipe 14 to avoid damaging the pulse valve 19.

[0023] The circulating water cooling assembly includes a water-cooled sleeve 7, which is fitted onto the blow pipe 14. A water-cooled cavity 15 is provided inside the water-cooled sleeve 7. A water outlet 9 and a water inlet 8 are provided at the top and bottom of the water-cooled sleeve 7, respectively. Both the water outlet 9 and the water inlet 8 are connected to the water-cooled cavity 15. Several second heat exchange fins 16 are fixedly connected to the inner wall of the water-cooled cavity 15. Several first heat exchange fins 10 are fixedly connected to the outer surface of the water-cooled sleeve 7. A fixing mechanism is installed on the right side of the water-cooled sleeve 7.

[0024] The fixing mechanism includes a fixing sleeve 11, which is fixedly connected to the right side of the water-cooled sleeve 7. Bolts 13 are threaded through several threaded holes 12, and the side of the bolts 13 near the blow pipe 14 abuts against the outer surface of the blow pipe 14.

[0025] The water-cooled sleeve 7 is threaded into the threaded holes 12 on the fixed sleeve 11 by several bolts 13, so that the outer surface of the blow pipe 14 of the bolts 13 abuts against it, thereby fixing the water-cooled sleeve 7. The water-cooled sleeve 7 is supplied with low-temperature water from the water inlet 8 into the water-cooled cavity 15. The heat on the pipe wall of the blow pipe 14 will heat the cooling water, and the hot water will be carried out through the water outlet 9. Several second heat exchange fins 16 are fixedly connected to the inner wall of the water-cooled cavity 15, and several first heat exchange fins 10 are fixedly connected to the outer surface of the water-cooled sleeve 7, thereby accelerating the heat exchange between the pipe wall of the blow pipe 14 and the outside.

[0026] The pulse cleaning assembly includes an air storage cylinder 24. A mounting bracket 30 is fixedly installed on the right side of the bag filter 1. The air storage cylinder 24 is fixedly installed on the mounting bracket 30. Several air outlets 29 are opened on the right side of the air storage cylinder 24. An air outlet pipe 20 is fixedly connected to the air outlet 29. A pulse valve 19 is fixedly connected to the output end of the air outlet pipe 20. The output end of the pulse valve 19 is fixedly connected to the input end of the blowpipe 14.

[0027] A mounting plate 23 is fixedly installed on the right side of the bag filter 1. An air compressor 22 is fixedly installed on the top of the mounting plate 23. An air inlet pipe 25 is fixedly connected to the output end of the air compressor 22. The output end of the air inlet pipe 25 is fixedly connected to the input end of the air storage cylinder 24.

[0028] Compressed gas is generated by air compressor 22 and stored in gas cylinder 24. The compressed gas in gas cylinder 24 is delivered to blow pipe 14 through pulse valve 19, and then enters blow pipe 14 for dust removal.

[0029] A chiller 21 is also fixedly installed on the top of the mounting plate 23. A water inlet pipe 28 and a water outlet pipe 18 are fixedly connected to the rear side of the chiller 21. Several water inlets 8 are fixedly connected to the water inlet pipe 28, and several water outlets 9 are fixedly connected to the water outlet pipe 18. The chiller 21 cools the hot water flowing out of the water outlet 9 and then delivers it to the water inlet 8 to complete the cooling of the spray pipe 14.

[0030] Pressure gauges 26 and safety valves 27 are respectively installed on the front and rear sides of the top of the gas cylinder 24. Pressure gauges 26 are used to monitor the pressure inside the gas cylinder 24, and safety valves 27 are used to ensure the safe operation of the gas cylinder 24.

[0031] Working principle: When the bag filter 1 is running, high-temperature dust is drawn in through the air inlet 2. After being filtered by the filter bags, the dust is carried away by the fan 6 through the air outlet 5. The filtered dust enters the ash hopper 4 through the ash outlet 3 for collection. After the bag filter 1 has been working for a long time, the dust accumulated on the surface of the filter bags is cleaned by the pulse cleaning assembly by injecting compressed gas through the blowpipe 14 into the bag filter 1. If the bag filter 1 is running at a temperature above 800℃ for a long time, the high temperature will be transmitted to the pulse valve 19 through the blowpipe 14, causing the pulse valve 19 to malfunction. This will prevent the pulse cleaning assembly from operating normally and ultimately affect the dust removal work. Therefore, a circulating water cooling assembly is installed on the blowpipe 14 to remove the heat from the pipe wall of the blowpipe 14 to avoid damaging the pulse valve 19.

[0032] The pulse cleaning assembly generates compressed gas through the air compressor 22 and stores it in the gas storage cylinder 24. The compressed gas in the gas storage cylinder 24 is delivered to the blow pipe 14 through the pulse valve 19, and then enters the blow pipe 14 for cleaning.

[0033] The circulating water cooling assembly is equipped with a water-cooled sleeve 7. The water-cooled sleeve 7 is threaded into the threaded holes 12 on the fixing sleeve 11 by several bolts 13, so that the outer surface of the bolt 13 spray pipe 14 abuts against it, thereby fixing the water-cooled sleeve 7. The water-cooled sleeve 7 is supplied with low-temperature water from the water inlet 8 into the water-cooling chamber 15. The heat on the pipe wall of the spray pipe 14 will heat the cooling water. The hot water is then carried out through the outlet 9. The refrigeration unit 21 cools the hot water flowing out of the outlet 9 and then delivers it to the water inlet 8 to complete the cooling of the spray pipe 14, thus completing the circulating water cooling. Several second heat exchange fins 16 are fixedly connected to the inner wall of the water-cooling chamber 15, and several first heat exchange fins 10 are fixedly connected to the outer surface of the water-cooled sleeve 7, thereby accelerating the heat exchange between the pipe wall of the spray pipe 14 and the outside.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating water-cooled jet pipe structure, comprising a bag filter (1), characterized in that: The bag filter (1) has an air inlet (2) and an ash outlet (3) on its right and bottom sides, respectively. A ash hopper (4) is provided below the bag filter (1). The top of the ash hopper (4) is fixedly connected to the ash outlet (3). An air outlet (5) is provided on the rear side of the bag filter (1). A fan (6) is fixedly installed on the rear side of the bag filter (1). The input end of the fan (6) is fixedly connected to the air outlet (5). Several jet nozzles (17) are provided on the top right side of the bag filter (1). Several jet nozzles (17) are fixedly connected to jet pipes (14). A pulse cleaning assembly is installed on the right side of the bag filter (1). A circulating water cooling assembly is installed on several jet pipes (14). The circulating water cooling assembly includes a water-cooled sleeve (7), which is sleeved on the blow pipe (14). The water-cooled sleeve (7) has a water-cooled cavity (15) inside. The top and bottom of the water-cooled sleeve (7) are respectively provided with a water outlet (9) and a water inlet (8). The water outlet (9) and the water inlet (8) are connected to the water-cooled cavity (15). A number of second heat exchange fins (16) are fixedly connected to the inner wall of the water-cooled cavity (15). A number of first heat exchange fins (10) are fixedly connected to the outer surface of the water-cooled sleeve (7). A fixing mechanism is installed on the right side of the water-cooled sleeve (7).

2. The circulating water cooling spray pipe structure according to claim 1, characterized in that: The fixing mechanism includes a fixing sleeve (11), which is fixedly connected to the right side of the water-cooled sleeve (7). The fixing sleeve (11) has several threaded holes (12), and bolts (13) are threaded through the several threaded holes (12). The bolts (13) near the blow pipe (14) abut against the outer surface of the blow pipe (14).

3. The circulating water cooling spray pipe structure according to claim 2, characterized in that: The pulse cleaning assembly includes a gas storage cylinder (24). A mounting frame (30) is fixedly installed on the right side of the bag filter (1). The gas storage cylinder (24) is fixedly installed on the mounting frame (30). Several air outlets (29) are opened on the right side of the gas storage cylinder (24). An air outlet pipe (20) is fixedly connected to the air outlet (29). A pulse valve (19) is fixedly connected to the output end of the air outlet pipe (20). The output end of the pulse valve (19) is fixedly connected to the input end of the blowpipe (14).

4. The circulating water cooling spray pipe structure according to claim 3, characterized in that: A mounting plate (23) is fixedly installed on the right side of the bag filter (1), and an air compressor (22) is fixedly installed on the top of the mounting plate (23). The output end of the air compressor (22) is fixedly connected to an air inlet pipe (25), and the output end of the air inlet pipe (25) is fixedly connected to the input end of the air storage cylinder (24).

5. The circulating water cooling spray pipe structure according to claim 4, characterized in that: A chiller (21) is also fixedly installed on the top of the mounting plate (23). The rear side of the chiller (21) is fixedly connected to an inlet pipe (28) and an outlet pipe (18). Several inlets (8) are fixedly connected to the inlet pipe (28), and several outlets (9) are fixedly connected to the outlet pipe (18).

6. The circulating water cooling spray pipe structure according to claim 5, characterized in that: Pressure gauges (26) and safety valves (27) are respectively installed on the front and rear sides of the top of the gas storage cylinder (24).

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