Air pre-cooling equipment used in air separation system

Abstract

The utility model discloses air pre-cooling equipment used in an air separation system, which comprises a conical pre-cooling spraying bin and an air injection bin mounted on the outer wall of the bottom of the conical pre-cooling spraying bin, a cavity is formed in the air injection bin, a group of air injection openings are formed in the surface of the air injection bin at intervals, and the air injection openings are communicated with the cavity. A cavity of the gas injection bin is communicated with the interior of the conical pre-cooling spraying bin through the gas injection opening, a drainage vertical pipe is longitudinally installed in a cavity of the conical pre-cooling spraying bin, a plurality of sets of water spraying openings are longitudinally and rotationally formed in the surface of the drainage vertical pipe, and a transmission mechanism for driving the drainage vertical pipe to rotate is arranged at the top of the drainage vertical pipe. The drainage vertical pipe rotates to enable the water spraying openings in the surface to spray water outwards in a rotating mode, so that the coverage area of cold water can be increased, the blocking piece of a V-shaped structure can enable sprayed water flow to splash after falling into the surface of the blocking piece, the splashed cold water is filled in a cavity of the conical pre-cooling spraying bin, space leakage is reduced, and the cooling efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation, in particular to air precooling equipment used in an air separation system. Background Art

[0002] Air separation is abbreviated as ASA. It is a process that utilizes the different physical properties of the components in the air and adopts deep freezing, adsorption, membrane separation and other methods to separate oxygen and nitrogen from the air, or to extract rare gases such as helium and argon at the same time. Air precooling is one of the links in ASA. In order to obtain a lower temperature, a cooling tower is required to precool the air.

[0003] For common cooling towers, a spray mode is generally used to make cold water fall and hot air rise, so as to complete the pre-cooling of the hot air. However, due to incomplete coverage of the cold water during the falling process, some hot air has less contact with the cold water, and the cooling efficiency is low. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an air separation precooling device for use in an air separation system, which increases the coverage area of ​​cold water and thus improves the precooling efficiency.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An air precooling device for an air separation system comprises a conical precooling spray bin and an air injection bin installed on the outer wall of the bottom of the conical precooling spray bin, wherein a cavity is provided in the air injection bin, and a group of air injection openings are provided on the surface of the air injection bin at intervals, and the cavity of the air injection bin is connected with the interior of the conical precooling spray bin through the air injection openings, and a drainage riser is longitudinally installed in the cavity of the conical precooling spray bin, and a plurality of groups of water spray outlets are longitudinally rotated on the surface of the drainage riser, and a transmission mechanism for driving the rotation of the drainage riser is provided on the top of the drainage riser, and the rotation of the drainage riser causes the water spray outlets on the surface to rotate and spray outward, thereby increasing the coverage area of ​​cold water.

[0007] Furthermore, the transmission mechanism includes a connecting sleeve, a gear ring and a driving gear roller. The connecting sleeve is fixed on the top of the drainage riser. The upper part of the connecting sleeve is fixed with a gear ring. The driving gear roller is installed on one side of the gear ring through a bracket, and the driving gear roller is meshed with the gear ring.

[0008] Furthermore, it comprises a drainage conduit, which is rotatably sleeved on the upper part of the gear ring through a water injection sleeve, and the drainage conduit is communicated with the cavity of the connecting sleeve and the interior of the drainage riser.

[0009] Furthermore, an annular groove is provided on the outer wall of the connecting sleeve, a supporting collar body is slidably installed in the annular groove, and a side wall of the supporting collar body is connected to the inner wall of the conical pre-cooling spray bin through a support rod.

[0010] Furthermore, two groups of baffles in a V-shaped structure are provided on one side of the drainage riser, a support base is fixedly provided in the cavity of the conical pre-cooling spray bin, a connecting column is fixedly provided on the upper part of the support base, a transverse annular groove is provided at the end of the baffle, the connecting column is arranged through the transverse annular groove, so that the ends of the two groups of baffles are respectively rotatably connected to the connecting column, and a rotating mechanism for driving the baffles to rotate is provided on the support base.

[0011] Furthermore, the rotating mechanism includes an adjusting screw, an engaging ring and a group of supporting cross bars. The adjusting screw is rotatably installed on the top of the supporting base and is located on one side of the connecting column. The external engaging sleeve of the adjusting screw is provided with an engaging ring, and the two ends of the engaging ring are connected to the inner walls of the two groups of baffles through the supporting cross bars.

[0012] Furthermore, a drain outlet is provided at the bottom of the conical pre-cooling spray bin, and an exhaust outlet is provided at the top thereof.

[0013] Furthermore, a side wall of the conical pre-cooling spray bin is provided with an inspection port.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1) The technical solution of the utility model is adopted, by arranging a rotatable drainage riser in the cavity of the conical pre-cooling spray bin, the water spray outlet on the surface can be rotated to spray outwards as the drainage riser rotates, thereby increasing the coverage area of ​​cold water and improving the pre-cooling efficiency;

[0016] 2) The V-shaped baffle of the utility model can cause the sprayed water to splash after falling on the surface of the baffle, so that the splashed cold water fills the cavity of the conical pre-cooling spray bin, reducing space omissions and further improving cooling efficiency;

[0017] 3) The air precooling equipment proposed by the utility model has reasonable structural design, simple operation and high cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 It is a partial cross-sectional view of the utility model;

[0020] Figure 3 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 4 This is a cross-sectional view of the gas injection bin of the utility model;

[0022] Figure 5 This is an enlarged view of the water injection sleeve of the utility model;

[0023] Figure 6 This is an enlarged view of the baffle of the utility model;

[0024] Figure 7 This is a disassembled view of the connecting column and the baffle part of the utility model.

[0025] In the figure: 1. Conical pre-cooling spray chamber; 2. Air injection chamber; 3. Air injection opening; 4. Water injection sleeve; 5. Drainage riser; 6. Drainage duct; 7. Connecting sleeve; 8. Support collar body; 9. Gear ring; 10. Driving gear roller; 11. Inspection port; 12. Support base; 13. Connecting column; 14. Baffle; 15. Adjusting screw; 16. Engaging collar; 17. Support cross bar. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0027] like Figure 1-2 As shown, an air precooling device for an air separation system comprises a conical precooling spray bin 1, a drainage riser 5 longitudinally installed in the cavity of the conical precooling spray bin 1, and an air injection bin 2 installed on the outer wall of the bottom of the conical precooling spray bin 1. The air injection bin 2 is an arc-shaped structure wrapped around the outer wall of the bottom of the conical precooling spray bin 1. There is a cavity in the air injection bin 2, and an air injection opening 3 is opened on the surface of the air injection bin 2. The cavity of the air injection bin 2 is connected with the interior of the conical precooling spray bin 1 through the air injection opening 3, so that hot air enters the interior of the conical precooling spray bin 1 along the air injection bin 2 and the air injection opening 3 for precooling. In order to make the hot air more evenly discharged into the interior of the conical precooling spray bin 1, the air injection openings 3 are arranged at intervals on the surface of the air injection bin 2, and the opening diameter of the air injection openings 3 is gradually increased from the air injection port of the air injection bin 2 to a farther direction, so that the hot air can be more evenly discharged into the interior of the conical precooling spray bin 1.

[0028] like Figure 4 As shown, the diameter of the air injection opening 3 gradually increases, so that the hot air is discharged into the interior of the conical pre-cooling spray chamber 1 more evenly.

[0029] A plurality of water spray ports are arranged on the surface of the vertical drainage pipe 5 in a longitudinal rotation manner. A transmission mechanism for driving the vertical drainage pipe 5 to rotate is arranged on the top of the vertical drainage pipe 5. The vertical drainage pipe 5 rotates so that the water spray ports on the surface spray outward in a rotational manner, thereby increasing the coverage area of ​​the cold water.

[0030] like Figure 5As shown, the transmission mechanism includes a connecting sleeve 7, a gear ring 9 and a driving gear roller 10. The connecting sleeve 7 is fixed on the top of the drainage riser 5. The gear ring 9 is fixed on the upper part of the connecting sleeve 7. The driving gear roller 10 is installed on one side of the gear ring 9 through a bracket, and the driving gear roller 10 is meshed with the gear ring 9.

[0031] The driving gear roller 10 is driven by a motor to rotate, thereby causing the driving gear roller 10 to drive the meshing gear ring 9 to rotate, and the gear ring 9 and the connecting sleeve 7 are fixed, and the connecting sleeve 7 and the drainage riser 5 are fixed, so the drainage riser 5 can be driven to rotate in the cavity of the conical pre-cooling spray bin 1, so that the water spray port sprays water in a ring shape, which can increase the coverage range, increase the contact area with the hot air, and improve the pre-cooling efficiency.

[0032] The outer wall of the connecting sleeve 7 is provided with an annular groove, in which a supporting collar body 8 is slidably installed, and the side wall of the supporting collar body 8 is connected to the inner wall of the conical precooling spray bin 1 through a support rod. The supporting collar body 8 keeps the connecting sleeve 7 in stable rotation.

[0033] In this embodiment, the air separation precooling equipment includes a drainage conduit 6, which is rotatably sleeved on the upper part of the gear ring 9 through the water injection sleeve 4, and the drainage conduit 6 is connected with the cavity of the connecting sleeve 7 and the interior of the drainage riser 5.

[0034] The drainage conduit 6 is rotatably sleeved on the upper part of the gear ring 9 through the water injection sleeve 4, and the drainage conduit 6 is connected with the cavity of the connecting sleeve 7 and the interior of the drainage riser 5. The water injection sleeve 4 is rotatably sleeved on the opening at the top of the connecting sleeve 7, so that the drainage conduit 6 enters the interior of the connecting sleeve 7 along the water injection sleeve 4, and the water injection sleeve 4 is connected to the top opening of the connecting sleeve 7 through a rotary seal.

[0035] like Figure 6-7 As shown, two groups of baffles 14 in a V-shaped structure are provided on one side of the drainage riser 5, a support base 12 is fixed in the cavity of the conical pre-cooling spray chamber 1, a connecting column 13 is fixed on the upper part of the support base 12, the ends of the two groups of baffles 14 are respectively connected to the connecting column 13, and the ends of the baffles 14 are provided with a transverse annular groove, and the connecting column 13 is arranged through the transverse annular groove, so that the ends of the two groups of baffles 14 are respectively connected to the connecting column 13 for rotation, and each group of baffles 14 can be rotated at a certain angle by relying on the connecting column 13, and a rotating mechanism for driving the baffles 14 to rotate is provided on the support base 12. The two groups of baffles 14 face the water outlet of the drainage riser 5, so that the water jetted from the drainage riser 5 touches the surface of the baffle 14 and then splashes, and the splashed water droplets can be scattered to various positions, further improving the coverage range and further improving the contact with the air.

[0036] The rotating mechanism includes an adjusting screw 15, an engaging ring 16 and a group of supporting cross bars 17. The adjusting screw 15 is rotatably installed on the top of the supporting base 12 and is located on one side of the connecting column 13. The outer engaging sleeve of the adjusting screw 15 is provided with an engaging ring 16. The two ends of the engaging ring 16 are connected to the inner walls of the two groups of baffles 14 through the supporting cross bars 17.

[0037] L-shaped plug rods are provided at both ends of the two groups of supporting cross bars 17, and positioning rings adapted to the L-shaped plug rods are provided on the surfaces of the engaging collar 16 and the baffle 14, so that the supporting cross bars 17 and the positioning rings can freely rotate at a certain angle. Therefore, by adjusting the rotation of the adjusting screw 15, the engaging collar 16 can be adjusted in the longitudinal position. When the engaging collar 16 moves downward, the two groups of supporting cross bars 17 support the two groups of baffles 14 to expand at a larger angle, and vice versa, the expansion angle is smaller, thereby realizing the adjustment capability.

[0038] like Figure 3 As shown, the side wall of the conical pre-cooling spray bin 1 is provided with an inspection port 11, the bottom of the conical pre-cooling spray bin 1 is provided with a drain port, and the top of the conical pre-cooling spray bin 1 is provided with an exhaust port. The inspection port 11 is sealed with a sealing cover under normal conditions, and the sealing cover can be opened for inspection during maintenance.

[0039] 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. An air precooling device for an air separation system, comprising a conical precooling spray bin (1) and an air injection bin (2) installed on the bottom outer wall of the conical precooling spray bin (1), wherein a cavity is provided in the air injection bin (2), a group of air injection openings (3) are provided at intervals on the surface of the air injection bin (2), the cavity of the air injection bin (2) is connected to the interior of the conical precooling spray bin (1) through the air injection openings (3), a drainage riser (5) is longitudinally installed in the cavity of the conical precooling spray bin (1), and a plurality of groups of water spray ports are longitudinally rotated on the surface of the drainage riser (5), characterized in that The top of the drainage riser (5) is provided with a transmission mechanism for driving the drainage riser to rotate. The drainage riser rotates so that the water spray outlets on the surface spray outward in a rotational manner, thereby increasing the coverage area of ​​the cold water.

2. The air precooling device for use in an air separation system according to claim 1, characterized in that The transmission mechanism comprises a connecting sleeve (7), a gear ring (9) and a driving gear roller (10); the connecting sleeve (7) is fixedly mounted on the top of the drainage riser (5); a gear ring (9) is fixedly mounted on the upper portion of the connecting sleeve (7); the driving gear roller (10) is mounted on one side of the gear ring (9) via a bracket, and the driving gear roller (10) is meshed with the gear ring (9).

3. The air precooling device for use in an air separation system according to claim 2, characterized in that It comprises a drainage conduit (6), wherein the drainage conduit (6) is rotatably sleeved on the upper part of the gear ring (9) through a water injection sleeve (4), and the drainage conduit (6) is connected to the cavity of the connecting sleeve (7) and the interior of the drainage riser (5).

4. An air precooling device for use in an air separation system according to claim 2 or 3, characterized in that The outer wall of the connecting sleeve (7) is provided with an annular sliding groove, in which a supporting collar body (8) is slidably mounted, and the side wall of the supporting collar body (8) is connected to the inner wall of the conical pre-cooling spray chamber (1) via a support rod.

5. The air precooling device for use in an air separation system according to claim 2, characterized in that Two groups of baffles (14) in a V-shaped structure are provided on one side of the drainage riser (5); a support base (12) is fixedly provided in the cavity of the conical pre-cooling spray chamber (1); a connecting column (13) is fixedly provided on the upper part of the support base (12); a transverse annular groove is provided at the end of the baffle (14); the connecting column (13) passes through the transverse annular groove so that the ends of the two groups of baffles (14) are respectively rotatably connected to the connecting column (13); and a rotating mechanism for driving the baffle (14) to rotate is provided on the support base (12).

6. The air precooling device for use in an air separation system according to claim 5, characterized in that The rotating mechanism comprises an adjusting screw (15), an engaging collar (16) and a group of supporting cross bars (17); the adjusting screw (15) is rotatably mounted on the top of the supporting base (12) and is located on one side of the connecting column (13); an engaging collar (16) is provided on the outer engaging sleeve of the adjusting screw (15); and both ends of the engaging collar (16) are connected to the inner walls of the two groups of baffles (14) via the supporting cross bars (17).

7. The air precooling device for use in an air separation system according to claim 1, characterized in that The bottom of the conical pre-cooling spray bin (1) is provided with a drain outlet, and the top of the conical pre-cooling spray bin (1) is provided with an exhaust outlet.

8. The air precooling device for use in an air separation system according to claim 1, characterized in that The side wall of the conical pre-cooling spray bin (1) is provided with an inspection opening (11).

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