Pre-cooling mechanism of air separation device

Abstract

The utility model discloses a pre-cooling mechanism of an air separation device, which relates to the technical field of air pre-cooling and comprises a bottom plate, a filter unit, a pre-cooling unit and a backflow unit. A filtering unit and a pre-cooling unit are mounted at the upper end of the bottom plate; the filtering unit comprises a filtering box, a mounting frame, threaded holes, T-shaped grooves, a filtering plate, a sealing gasket, a filtering box cover plate and a bolt I. The filtering box is fixedly connected to the upper end of the bottom plate, the mounting frame is fixedly connected to the upper end of the filtering box, the four threaded holes are formed in the four corners of the mounting frame, and the T-shaped grooves are formed in the upper end of the filtering box in a bilateral symmetry mode. The two ends of the filter plate are in sliding connection with the T-shaped grooves, and the lower end of the filter box cover plate is fixedly connected with a sealing gasket; according to the pre-cooling mechanism of the air separation device, the air inlet pipeline sucks air and is provided with the filtering device, follow-up operation is not affected after air is pre-cooled, and pre-cooling equipment is simple and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of air precooling, in particular to a precooling mechanism for an air separation device. Background Art

[0002] An air separation unit is a set of industrial equipment used to separate the various groups of gases in the air and produce oxygen, nitrogen, argon and other gases as air components. The most commonly used air separation method is cryogenic distillation separation;

[0003] Among them, the prior art has an air separation device precooling mechanism proposed in the authorization announcement number CN220103539U, which includes a support mechanism and a precooling tank body, wherein the right side surface of the precooling tank body is threadedly connected with a connecting cover plate, the right side surface of the connecting cover plate is threadedly connected with a metal pipe, the right side surface of the metal pipe is fixedly connected with a metal shell, the inner wall surface of the metal shell is movably connected with a filtering mechanism, and the support mechanism is fixedly connected to the bottom end surface of the precooling tank body;

[0004] In the prior art, the air is sucked into the air intake duct so as to pre-cool the air. However, since the air intake duct is not provided with a filtering device, the pre-cooling of the air affects the subsequent operations. The pre-cooling equipment is complicated and inconvenient to maintain. Therefore, we propose a pre-cooling mechanism for an air separation device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a precooling mechanism for an air separation device. The air inlet duct is provided with a filtering device for inhaling air. The precooling of the air will not affect the subsequent operation. The precooling equipment is simple and easy to maintain, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air separation device precooling mechanism, comprising a bottom plate, a filter unit, a precooling unit and a reflux unit;

[0007] Bottom plate: The filter unit and pre-cooling unit are installed on the upper end;

[0008] Filter unit: comprising a filter box, a mounting frame, threaded holes, a T-slot, a filter plate, a sealing gasket, a filter box cover plate and a bolt 1, the upper end of the bottom plate is fixedly connected with the filter box, the upper end of the filter box is fixedly connected with the mounting frame, four threaded holes are provided at the four corners of the mounting frame, a plurality of T-slots are symmetrically provided at the upper end of the filter box, the two ends of the filter plate are slidably connected with the T-slots, the lower end of the filter box cover plate is fixedly connected with a sealing gasket, and the filter box cover plate is fixedly connected with the mounting frame by a bolt 1;

[0009] Reflux unit: installed on the pre-cooling unit and the filtration unit.

[0010] The filter plate is limited by the T-slot, the dust and moisture in the air are filtered by the filter plate, the filter box is sealed by the mounting frame and the threaded holes and the upper filter box cover and a pair of bolts, and the joints are sealed by the sealing gasket.

[0011] Further, the precooling unit comprises a support block, a vortex tube, a fixing ring 1, a sealing flange, a bolt 2, a cover plate 1 and a nut 1. The upper end of the base plate is fixedly connected with the support block, the upper end of the support block is fixedly connected with the vortex tube, the air outlet of the filter box is fixedly connected with the air inlet of the vortex tube, the cold air outlet of the vortex tube is fixedly connected with a fixing ring 1, the fixing ring 1 is fixedly connected with the cover plate 1 by bolt 2, and the sealing flange is fixedly connected between the fixing ring 1 and the cover plate 1. The cover plate 1 and the vortex tube are fixed by bolt 2 and nut 1, and the connection is sealed by the sealing flange. The air enters from the air inlet of the vortex tube after being filtered, and then flows out from the cold air outlet of the vortex tube, thereby achieving the effect of air precooling.

[0012] Furthermore, the precooling unit further comprises a connecting pipe and a second fixing ring, the hot air outlet of the vortex tube is fixedly connected with the connecting pipe, and the left end of the connecting pipe is fixedly connected with a second fixing ring. The connection of the hot air outlet is fixed by the connecting pipe and the second fixing ring, so as to control the air to reflux.

[0013] Furthermore, the reflux unit comprises nut 2, sealing flange 2, bolt 3 and cover plate 2, the fixing ring 2 and cover plate 2 are fixedly connected by nut 2 and bolt 3, and the sealing flange 2 is fixedly connected between the fixing ring 2 and cover plate 2. The cover plate 2 and the fixing ring 2 are fixedly connected by bolt 3 and nut 2, and the connection between the two is sealed by sealing flange 2.

[0014] Furthermore, the reflux unit also includes a throttle valve, a water inlet, a reflux pipe, a cold water tank and a water outlet. The left end of the second cover is fixedly connected with a reflux pipe, the other end of the reflux pipe is fixedly connected to the air inlet of the vortex tube, the outer side of the second cover is fixedly connected with a throttle valve, the upper end is fixedly connected with a cold water tank, the upper end of the cold water tank is fixedly connected with a water inlet, the front end of the cold water tank is fixedly connected with a water outlet, and the middle part of the reflux pipe is installed on the inner side of the cold water tank. The air flow rate is controlled by the throttle valve, and the hot air generated after filtration is cooled and reflowed into the cooling device through the reflux pipe. Cold water is poured into the cold water tank through the water inlet and discharged through the water outlet. The heat of the air inside the reflux pipe is taken away by the cold water tank, thereby achieving the effect of cooling the high-temperature gas to room temperature.

[0015] Furthermore, an air compressor is also included, and the front air inlet of the filter box is fixedly connected to the air outlet of the air compressor. The air compressor provides high-flow-rate compressed air for the device.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the air separation device precooling mechanism has the following advantages:

[0017] 1. The precooling mechanism of the air separation device is simple and easy to maintain. The air is precooled by the physical characteristics of the vortex tube, which makes the operation and maintenance of the equipment simpler, so that the air can be precooled simply and efficiently.

[0018] 2. The air separation device has a precooling mechanism, and the air inlet duct is provided with a filter device. The precooling of the air will not affect the subsequent process. The filter plate is limited by the T-slot, and the dust and moisture in the air are filtered through the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0022] In the figure: 1 bottom plate, 2 air compressor, 3 filter unit, 31 filter box, 32 installation frame, 33 threaded hole, 34 T-slot, 35 filter plate, 36 sealing gasket, 37 filter box cover, 38 bolt 1, 4 pre-cooling unit, 41 support block, 42 ​​vortex tube, 43 fixing ring 1, 44 sealing flange 1, 45 bolt 2, 46 cover 1, 47 nut 1, 48 connecting pipe, 49 fixing ring 2, 5 reflux unit, 51 nut 2, 52 sealing flange 2, 53 bolt 3, 54 cover 2, 55 throttle valve, 56 water inlet, 57 reflux pipe, 58 cold water tank, 59 water outlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , This embodiment provides a technical solution for a precooling mechanism of an air separation device: a precooling mechanism of an air separation device, comprising a bottom plate 1, a filter unit 3, a precooling unit 4 and a reflux unit 5;

[0025] Bottom plate 1: Filter unit 3 and pre-cooling unit 4 are installed on the upper end;

[0026] Filter unit 3: includes filter box 31, mounting frame 32, threaded holes 33, T-slots 34, filter plate 35, sealing gasket 36, filter box cover plate 37 and bolts 38. The upper end of the bottom plate 1 is fixedly connected with the filter box 31, the upper end of the filter box 31 is fixedly connected with the mounting frame 32, four threaded holes 33 are provided at the four corners of the mounting frame 32, a plurality of T-slots 34 are symmetrically provided at the upper end of the filter box 31, both ends of the filter plate 35 are slidably connected with the T-slots 34, the lower end of the filter box cover plate 37 is fixedly connected with the sealing gasket 36, and the filter box cover plate 37 is fixedly connected with the mounting frame 32 by bolts 38;

[0027] The filter plate 35 is limited by the T-slot 34, and the dust and moisture in the air are filtered by the filter plate 35. The filter box 31 is sealed by the mounting frame 32 and the threaded hole 33 and the upper filter box cover 37 and bolts 38, and the connection is sealed by the sealing gasket 36.

[0028] Reflux unit 5: installed on precooling unit 4 and filter unit 3, precooling unit 4 includes support block 41, vortex tube 42, fixing ring 1 43, sealing flange 44, bolt 2 45, cover plate 1 46 and nut 1 47, the upper end of bottom plate 1 is fixedly connected with support block 41, the upper end of support block 41 is fixedly connected with vortex tube 42, the air outlet of filter box 31 is fixedly connected with the air inlet of vortex tube 42, the cold air outlet of vortex tube 42 is fixedly connected with fixing ring 1 43, fixing ring 1 43 is fixedly connected with cover plate 1 46 by bolt 2 45, and sealing flange 44 is fixedly connected between fixing ring 1 43 and cover plate 1 46. Cover plate 1 46 and vortex tube 42 are fixed by bolt 2 45 and nut 1 47, and the connection is sealed by sealing flange 44, air enters from the air inlet of vortex tube 42 after being filtered, and then flows out from the cold air outlet of vortex tube 42, so as to achieve the effect of air precooling.

[0029] The precooling unit 4 further comprises a connecting pipe 48 and a second fixing ring 49. The hot air outlet of the vortex tube 42 is fixedly connected with the connecting pipe 48, and the left end of the connecting pipe 48 is fixedly connected with a second fixing ring 49. The connection of the hot air outlet is fixed by the connecting pipe 48 and the second fixing ring 49, so as to control the air to reflux.

[0030] The reflux unit 5 comprises a nut 2 51, a sealing flange 2 52, a bolt 3 53 and a cover plate 2 54. The fixing ring 2 49 and the cover plate 2 54 are fixedly connected by the nut 2 51 and the bolt 3 53. The sealing flange 2 52 is fixedly connected between the fixing ring 2 49 and the cover plate 2 54. The cover plate 2 54 and the fixing ring 2 49 are fixedly connected by the bolt 3 53 and the nut 2 51, and the connection between the two is sealed by the sealing flange 2 52.

[0031] The reflux unit 5 also includes a throttle valve 55, a water inlet 56, a reflux pipe 57, a cold water tank 58 and a water outlet 59. The left end of the cover plate 2 54 is fixedly connected with the reflux pipe 57, the other end of the reflux pipe 57 is fixedly connected to the air inlet of the vortex tube 42, the outer side of the cover plate 2 54 is fixedly connected with the throttle valve 55, the upper end of the bottom plate 1 is fixedly connected with the cold water tank 58, the upper end of the cold water tank 58 is fixedly connected with the water inlet 56, the front end of the cold water tank 58 is fixedly connected with the water outlet 59, and the middle part of the reflux pipe 57 is installed inside the cold water tank 58. The throttle valve 55 controls the flow rate of the air, and the hot air generated after filtering is cooled and refluxed back to the inside of the cooling device through the reflux pipe 57, and cold water is poured into the cold water tank 58 through the water inlet 56 and discharged through the water outlet 59, and the heat of the air inside the reflux pipe 57 is taken away by the cold water tank 58, thereby achieving the effect of cooling the high-temperature gas to room temperature.

[0032] It also includes an air compressor 2, and the front air inlet of the filter box 31 is fixedly connected to the air outlet of the air compressor 2. The air compressor 2 provides high-flow-rate compressed air for the device.

[0033] The working principle of the precooling mechanism of an air separation device provided by the utility model is as follows: the filter plate 35 is limited by the T-slot 34, the dust and moisture of the air are filtered by the filter plate 35, the filter box 31 is sealed by the mounting frame 32 and the threaded hole 33 and the upper filter box cover plate 37 and bolt 1 38, and the connection is sealed by the sealing gasket 36. The cover plate 1 46 and the vortex tube 42 are fixed by bolt 2 45 and nut 1 47, and the connection is sealed by the sealing flange 44. After being filtered, the air enters from the air inlet of the vortex tube 42 and then flows out from the cold air outlet of the vortex tube 42, thereby achieving the effect of air precooling. The connection of the hot air outlet is fixed by the connecting pipe 48 and the fixing ring 2 49, so as to control the air to flow back. The cover plate 2 54 and the fixing ring 2 49 are fixedly connected by bolt 3 53 and nut 2 51, and the connection between the two is sealed by the sealing flange 2 52. The flow rate of the air is controlled by the throttle valve 55, and the hot air generated after filtration is cooled and then returned to the interior of the cooling device through the return pipe 57. Cold water is poured into the cold water tank 58 through the water inlet 56 and discharged through the water outlet 59. The heat of the air inside the return pipe 57 is taken away by the cold water tank 58, thereby achieving the effect of cooling the high-temperature gas to room temperature. The air compressor 2 provides the device with high-flow compressed air.

[0034] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A precooling mechanism for an air separation device, characterized in that: It comprises a bottom plate (1), a filtering unit (3), a precooling unit (4) and a reflux unit (5); Bottom plate (1): a filter unit (3) and a pre-cooling unit (4) are installed on the upper end; The filter unit (3) comprises a filter box (31), a mounting frame (32), a threaded hole (33), a T-slot (34), a filter plate (35), a sealing gasket (36), a filter box cover plate (37) and a bolt (38); the upper end of the bottom plate (1) is fixedly connected to the filter box (31); the upper end of the filter box (31) is fixedly connected to the mounting frame (32); four threaded holes (33) are provided at four corners of the mounting frame (32); a plurality of T-slots (34) are symmetrically provided at the upper end of the filter box (31); two ends of the filter plate (35) are slidably connected to the T-slots (34); the lower end of the filter box cover plate (37) is fixedly connected to the sealing gasket (36); and the filter box cover plate (37) is fixedly connected to the mounting frame (32) by a bolt (38); Reflux unit (5): installed on the precooling unit (4) and the filtering unit (3).

2. The air separation device precooling mechanism according to claim 1, characterized in that: The precooling unit (4) comprises a support block (41), a vortex tube (42), a fixing ring (43), a sealing flange (44), a second bolt (45), a cover plate (46) and a nut (47); the upper end of the base plate (1) is fixedly connected to the support block (41); the upper end of the support block (41) is fixedly connected to the vortex tube (42); the air outlet of the filter box (31) is fixedly connected to the air inlet of the vortex tube (42); the cold air outlet of the vortex tube (42) is fixedly connected to the fixing ring (43); the fixing ring (43) is fixedly connected to the cover plate (46) by the second bolt (45); and the sealing flange (44) is fixedly connected between the fixing ring (43) and the cover plate (46).

3. The air separation device precooling mechanism according to claim 2, characterized in that: The precooling unit (4) further comprises a connecting pipe (48) and a second fixing ring (49); the hot air outlet of the vortex tube (42) is fixedly connected to the connecting pipe (48); and the left end of the connecting pipe (48) is fixedly connected to the second fixing ring (49).

4. The air separation device precooling mechanism according to claim 3, characterized in that: The reflux unit (5) comprises a nut 2 (51), a sealing flange 2 (52), a bolt 3 (53) and a cover plate 2 (54); the fixing ring 2 (49) and the cover plate 2 (54) are fixedly connected via the nut 2 (51) and the bolt 3 (53); the sealing flange 2 (52) is fixedly connected between the fixing ring 2 (49) and the cover plate 2 (54).

5. The air separation device precooling mechanism according to claim 4, characterized in that: The reflux unit (5) further comprises a throttle valve (55), a water inlet (56), a reflux pipe (57), a cold water tank (58) and a water outlet (59); the left end of the second cover plate (54) is fixedly connected to the reflux pipe (57); the other end of the reflux pipe (57) is fixedly connected to the air inlet of the vortex tube (42); the outer side of the second cover plate (54) is fixedly connected to the throttle valve (55); the upper end of the base plate (1) is fixedly connected to the cold water tank (58); the upper end of the cold water tank (58) is fixedly connected to the water inlet (56); the front end of the cold water tank (58) is fixedly connected to the water outlet (59); the middle part of the reflux pipe (57) is installed on the inner side of the cold water tank (58).

6. The air separation device precooling mechanism according to claim 1, characterized in that: It also includes an air compressor (2), and the front air inlet of the filter box (31) is fixedly connected to the air outlet of the air compressor (2).

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