Circulation cabinet and preparation method thereof

Abstract

The invention discloses a circulation cabinet, which relates to the technical field of circulation cabinets and comprises a circulation cabinet, an air inlet pipe is fixed at the bottom of the outer side of the circulation cabinet, a water outlet pipe is fixed in the middle of the bottom of the circulation cabinet, an air outlet pipe is fixed in the middle of the top of the air outlet pipe, and a plurality of fixing plates are fixed on the inner wall of the circulation cabinet. Every two vertically adjacent fixed plates are oppositely arranged, one end of each fixed plate is fixedly provided with a hollow plate, the hollow plates are fixed with the inner wall of the circulation cabinet, the hollow plates are provided with ventilating slotted holes, and fillers are arranged between each layer of fixed plate and the hollow plate. According to the circulating cabinet, waste gas advances in an S-shaped track when passing through the gap between the fixed plate and the hollow plate, the advancing path of the waste gas is prolonged, the residence time of the waste gas in the filler between the fixed plate and the hollow plate is prolonged, and the waste gas can have sufficient time to react with cleaning liquid on the filler.

Description

Technical Field

[0001] The invention relates to the technical field of circulation cabinets, and in particular to a circulation cabinet and a preparation method thereof. Background Art

[0002] With the continuous development of industrialization, a large amount of waste gas will be generated in the production process of various industries, and some waste gas contains toxic gases and recycled substances. For this reason, the waste gas needs to be purified so that the waste gas can be recycled. In the process of waste gas purification, a circulation cabinet will be used to recycle the waste gas. The circulation cabinet is an important structural component in the intelligent exhaust gas recirculation system (iCER), which mainly plays the function of promoting the circulation of waste gas. When purifying the waste gas, the waste gas often enters the interior of the circulation cabinet from the bottom of the circulation cabinet and moves from bottom to top. There are multiple layers of spray heads on the top of the waste gas cabinet to spray the waste gas from top to bottom, and then purify the waste gas. The travel route of the waste gas is vertically upward, and the residence time in the circulation cabinet is relatively short, which makes it very likely that the waste gas will be discharged without sufficient reaction with the cleaning liquid, and then part of the waste gas is not fully purified, thereby affecting the purification quality of the waste gas. For this reason, we propose a circulation cabinet. Summary of the invention

[0003] The present invention provides a circulation cabinet, which solves the problems raised by the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a circulation cabinet, including a circulation cabinet, an air inlet pipe is fixed at the bottom of the outer side of the circulation cabinet, and a water outlet pipe is fixed in the middle of the bottom of the circulation cabinet, and an air outlet pipe is fixed in the middle of the top of the air outlet pipe, a plurality of fixed plates are fixed to the inner wall of the circulation cabinet, and every two vertically adjacent fixed plates are arranged oppositely, a hollow plate is fixed at one end of the fixed plate, and the hollow plate is fixed to the inner wall of the circulation cabinet, a ventilation slot is opened on the hollow plate, a filler is arranged between each layer of the fixed plate and the hollow plate, and the exhaust gas moves in a vertically upward S-shaped trajectory between the fixed plate and the hollow plate.

[0005] Optionally, four support rods are fixed to the inner wall of the circulation cabinet, and a fixed base is commonly fixed to one end of the four support rods, and the fixed base is located directly above the top layer of filler.

[0006] Optionally, a connecting tube is connected to the middle movable sleeve of the fixed base, and an infusion tube is connected to the middle movable sleeve of the connecting tube. The infusion tube is fixed to the circulation cabinet, and one end of the infusion tube extends out of the circulation cabinet and a water pump is fixed therein.

[0007] Optionally, the water outlet of the water pump is fixed to the liquid infusion pipe, and the water inlet of the water pump is fixed with the water infusion pipe, and the water pump is placed on the ground.

[0008] Optionally, a cleaning liquid storage tank is fixed to one end of the water pipe, a water outlet of the cleaning liquid storage tank is fixed to the water pipe, and the cleaning liquid storage tank is placed on the ground.

[0009] Optionally, a motor with an output shaft pointing vertically upward is fixed to the inner wall of the circulation cabinet, and a transmission belt is sleeved between the output shaft of the motor and the middle of the outer side of the connecting pipe.

[0010] Optionally, a spray head is fixed to the bottom end of the connecting pipe, and water spray ports are evenly arranged at the bottom of the spray head, and the water spray ports face the topmost layer of filler.

[0011] The circulation cabinet is manufactured by welding and no processing is required after welding. The specific steps are:

[0012] Step 1: Since the height of the circulation cabinet shell is 2665mm, the shell needs to be formed by splicing. According to the general market specifications and the capacity of the plate rolling machine, it is divided into 1490mm+1175mm. At the same time, in order to avoid stress concentration caused by weld stacking, cross welds should be avoided, and the spacing between two longitudinal seams should be no less than 100mm.

[0013] Step 2: Laser cutting can be used when cutting parts to ensure that the size deviation of the parts after cutting is within 0.3mm. Many pipe flange holes on the shell can also be made in advance by laser cutting when cutting parts to ensure the dimensional accuracy of subsequent pipe flanges.

[0014] Step 3: Make the parts of the circulation cabinet, including Part 1: top panel; Part 2: shell; Part 3: lower cone; Part 4: pipe-flange. Note that when making the shell of Part 2, the spliced ​​annular parts are not welded first, and will be welded during the final overall assembly.

[0015] Step 3: According to the platform marking, assemble Part 1: top panel and Part 2: upper part of the shell, and pay attention to the orientation of the holes. Then assemble Part 4: pipe-flange assembly according to the position of the holes. The internal reinforcing ribs are assembled by spot welding.

[0016] Step 4: According to the platform marking, assemble part 2: the lower half of the shell and part 3: the lower cone, paying attention to the orientation of the manhole. Then assemble part 4: the pipe-flange assembly according to the position of the hole. The internal reinforcing rib plate is assembled by spot welding.

[0017] Step 5: Assemble the upper and lower parts of the shell and weld the annular seam of the component shell.

[0018] Step 6: Finally, weld the bottom 4 H-shaped steel legs and the internal reinforcing ribs.

[0019] Preferably, during the mass production process, a special tooling may be used, through which the platform marking process and temporary detachable reinforcement in the aforementioned steps are eliminated, the shell is fixed on the special tooling, and the installation size of the pipe mouth is ensured by the tooling.

[0020] As a preference, in the batch production process, special tooling can be used, the tooling can be combined with a positioner, and automated welding can be achieved through a welding robot, further improving production efficiency and reducing overall costs.

[0021] The present invention has the following beneficial effects:

[0022] 1. The circulation cabinet allows the exhaust gas to travel in an S-shaped trajectory when passing through the gap between the fixed plate and the hollow plate, thereby extending the travel distance of the exhaust gas and then extending the retention time of the exhaust gas in the filler between the fixed plate and the hollow plate. While saving space, the exhaust gas has sufficient time to react with the cleaning liquid on the filler, and then the exhaust gas can be fully reacted and purified, thereby ensuring the purification quality of the exhaust gas.

[0023] 2. The circulation cabinet can rotate the transmission belt under the drive of the motor output shaft, and under the drive of the transmission belt, its connecting pipe can drive the spray head to rotate. Under the rotation of the spray head, the cleaning liquid in the spray head can be evenly sprayed on the filler through the spray port, and then can fully form a water film on the filler, and then can fully react with the exhaust gas, so that the exhaust gas can be fully purified. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the present invention in section;

[0026] Figure 3 This is a structural schematic diagram of the support rod connection of the present invention;

[0027] Figure 4 Another cross-sectional structural diagram of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the fixed plate connection of the present invention.

[0029] In the figure: 1. circulation cabinet; 2. air inlet pipe; 3. water outlet pipe; 4. air outlet pipe; 5. infusion pipe; 6. water pump; 7. water pipe; 8. cleaning liquid storage tank; 9. filler; 10. support rod; 11. fixed base; 12. connecting pipe; 13. sprinkler head; 14. motor; 15. transmission belt; 16. fixed plate; 17. hollow plate. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figures 1 to 5 A circulation cabinet comprises a circulation cabinet 1, an air inlet pipe 2 is fixed at the bottom of the outer side of the circulation cabinet 1, and the exhaust gas enters the interior of the air inlet pipe 2 through the air inlet pipe 2 for purification, so as to be recycled, and an outlet pipe 3 is fixed in the middle of the bottom of the circulation cabinet 1, and the cleaning liquid flows to the bottom of the air inlet pipe 2 through the middle of the air inlet pipe 2, and then is discharged through the outlet pipe 3, and an outlet pipe 4 is fixed in the middle of the top of the outlet pipe 4, and the purified exhaust gas is discharged through the outlet pipe 4, so as to recycle the exhaust gas, and a plurality of fixed plates 16 are fixed to the inner wall of the circulation cabinet 1, and every two vertically adjacent fixed plates 16 are arranged in opposite directions. Under the blocking of the setting of the fixed plates 16, the travel route of the exhaust gas is S-shaped, along the residence time of the exhaust gas in the air inlet pipe 2, and a hollow plate 17 is fixed at one end of the fixed plate 16, and the hollow plate 1 Under the support of 7, the filler 9 can be in the gap formed between the fixed plate 16 and the hollow plate 17. The top of the fixed plate 16 is inclined, so that the cleaning liquid can flow down along the fixed plate 16 smoothly, avoiding the cleaning liquid from remaining on the fixed plate 16, and the hollow plate 17 is fixed to the inner wall of the circulation cabinet 1, and a ventilation slot is opened on the hollow plate 17, so that the exhaust gas can travel through the slot, and a filler 9 is arranged between each layer of the fixed plate 16 and the hollow plate 17. Under the action of the filler 9, the cleaning liquid can form a water film in the gap inside the filler 9, so that the exhaust gas can fully contact the exhaust gas, so that the exhaust gas can be fully purified, and the exhaust gas moves between the fixed plate 16 and the hollow plate 17 in a vertically upward S-shaped trajectory.

[0032] See also Figures 1 to 4 Four support rods 10 are fixed to the inner wall of the circulation cabinet 1, and a fixed base 11 is fixed to one end of the four support rods 10. Under the fixing effect of the four support rods 10, the fixed base 11 is further supported, and the fixed base 11 is directly above the top layer of filler 9.

[0033] See also Figures 1 to 4 A connecting tube 12 is movably sleeved in the middle of the fixed base 11. Under the limitation of the fixed base 11, the connecting tube 12 can be rotated in a fixed position, and an infusion tube 5 is movably sleeved in the middle of the connecting tube 12, so that the fixed base 11 can rotate relative to the infusion tube 5. The infusion tube 5 is fixed to the circulation cabinet 1, and one end of the infusion tube 5 extends out of the circulation cabinet 1 and a water pump 6 is fixed thereto, so that the cleaning liquid can be input into the infusion tube 5 through the water pump 6 and then enter the connecting tube 12.

[0034] See also Figures 1 to 3 The water outlet of the water pump 6 is fixed to the infusion tube 5, and the water inlet of the water pump 6 is fixed with the water pipe 7. At the same time, the water pump 6 is placed on the ground. Under the action of the water pump 6, the cleaning liquid can be pumped out through the water pipe 7 and then transported to the infusion tube 5. The water pump 6 is a prior art and will not be described in detail here.

[0035] See also Figures 1 to 3 A cleaning liquid storage tank 8 is fixed to one end of the water pipe 7, a water outlet of the cleaning liquid storage tank 8 is fixed to the water pipe 7, and the cleaning liquid storage tank 8 is placed on the ground. The cleaning liquid storage tank 8 stores cleaning liquid, and the cleaning liquid can be pumped out through the water pipe 7.

[0036] See also Figures 1 to 4 A motor 14 with an output shaft pointing vertically upward is fixed to the inner wall of the circulation cabinet 1, and a transmission belt 15 is sleeved together between the output shaft of the motor 14 and the middle of the outer side of the connecting pipe 12. Driven by the output shaft of the motor 14, the transmission belt 15 can rotate, and under the transmission action of the transmission belt 15, the connecting pipe 12 can rotate. The motor 14 is a prior art and will not be described in detail here.

[0037] See also Figures 1 to 4 A spray head 13 is fixed to the bottom end of the connecting tube 12. Driven by the connecting tube 12, the spray head 13 can rotate, and the cleaning liquid enters the spray head 13 through the connecting tube 12. Water spray ports are evenly opened at the bottom of the spray head 13, and the water spray ports are facing the top layer of the filler 9. Under the action of the spray head 13, the cleaning liquid can be evenly sprayed on the filler 9.

[0038] In summary, when the circulation cabinet is in use, the exhaust gas is discharged into the interior of the circulation cabinet 1 through the air inlet pipe 2, so that the exhaust gas can enter the bottom end of the interior of the circulation cabinet 1, and then the exhaust gas passes through the filler 9 between the fixed plate 16 and the hollow plate 17 in an S-shaped trajectory. When the exhaust gas passes through the filler 9, it reacts with the cleaning liquid on the filler 9, thereby purifying the exhaust gas. The purified exhaust gas passes through the filler 9 and then is discharged through the air outlet pipe 4 for recycling. Under the action of the water pump 6, the cleaning liquid in the cleaning liquid storage tank 8 can be drawn out through the water delivery pipe 7, and then through the delivery pipe 5, transported to the connecting pipe 12, and then enters the spray head 13. Under the action of the spray port on the spray head 13, the cleaning liquid can be sprayed on the filler 9, and then a water film of the cleaning liquid is formed in the gap between the fillers 9, so that the cleaning liquid can fully contact with the exhaust gas. At the same time, driven by the output shaft of the motor 14 and the transmission action of the transmission belt 15, the connecting pipe 12 can rotate, and then drive the spray head 13 to rotate, so that the cleaning liquid can be evenly sprayed on the filler 9, and the cleaning liquid finally flows out through the water outlet pipe 3.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulation cabinet, comprising a circulation cabinet (1), an air inlet pipe (2) being fixed at the bottom of the outer side of the circulation cabinet (1), a water outlet pipe (3) being fixed in the middle of the bottom of the circulation cabinet (1), and an air outlet pipe (4) being fixed in the middle of the top of the air outlet pipe (4), characterized in that: A plurality of fixed plates (16) are fixed to the inner wall of the circulation cabinet (1), and every two vertically adjacent fixed plates (16) are arranged opposite to each other. A hollow plate (17) is fixed to one end of the fixed plate (16), and the hollow plate (17) is fixed to the inner wall of the circulation cabinet (1). Ventilation slots are provided on the hollow plate (17). A filler (9) is provided between each layer of fixed plates (16) and hollow plates (17), and the exhaust gas moves between the fixed plates (16) and the hollow plates (17) in a vertically upward S-shaped trajectory.

2. A circulation cabinet according to claim 1, characterized in that: Four support rods (10) are fixed to the inner wall of the circulation cabinet (1), and a fixed base (11) is commonly fixed to one end of the four support rods (10), and the fixed base (11) is located directly above the topmost filler (9).

3. A circulation cabinet according to claim 2, characterized in that: The fixed base (11) is movably sleeved with a connecting pipe (12) in the middle, and a liquid infusion pipe (5) is movably sleeved with the connecting pipe (12) in the middle. The liquid infusion pipe (5) is fixed to the circulation cabinet (1), and one end of the liquid infusion pipe (5) extends out of the circulation cabinet (1) and is fixed with a water pump (6) therein.

4. A circulation cabinet according to claim 3, characterized in that: The water outlet of the water pump (6) is fixed to the liquid delivery pipe (5), and the water inlet of the water pump (6) is fixed to the water delivery pipe (7), and the water pump (6) is placed on the ground.

5. A circulation cabinet according to claim 4, characterized in that: A cleaning liquid storage tank (8) is fixed to one end of the water pipe (7), a water outlet of the cleaning liquid storage tank (8) is fixed to the water pipe (7), and the cleaning liquid storage tank (8) is placed on the ground.

6. A circulation cabinet according to claim 5, characterized in that: A motor (14) with an output shaft pointing vertically upward is fixed to the inner wall of the circulation cabinet (1), and a transmission belt (15) is sleeved between the output shaft of the motor (14) and the middle of the outer side of the connecting pipe (12).

7. A circulation cabinet according to claim 6, characterized in that: A spray head (13) is fixed at the bottom end of the connecting pipe (12), and water spray ports are evenly arranged at the bottom of the spray head (13), and the water spray ports face the topmost filler (9).

8. The method for manufacturing a circulation cabinet according to any one of claims 1 to 7 is manufactured by welding and no processing is required after welding, characterized in that: The specific steps are: Step 1: Divided into 1490mm+1175mm, the distance between the two longitudinal seams should not be less than 100mm. Step 2: Laser cutting is used when cutting parts to ensure that the size deviation of the parts after cutting is within 0.3mm; Step 3: Make the parts of the circulation cabinet, mark the lines according to the platform, and assemble the reinforcing ribs of the pipe-flange assembly by spot welding according to the positions of the holes; Step 4: Assemble the upper and lower parts of the shell; Step 5: Weld the bottom H-shaped steel legs and the internal reinforcing ribs.

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