CN212988078U - Waste gas heat exchanger capable of controlling cooling performance of methanol distillation tower - Google Patents

Abstract

The utility model discloses a can control methyl alcohol distillation tower cooling performance's waste gas heat exchanger, including first device storehouse, second device storehouse and delivery pipe, the internally mounted in first device storehouse has the stand pipe, the outside of stand pipe is provided with the cooling tube, and the both ends of cooling tube all run through first device storehouse, the second device storehouse is installed at the top in first device storehouse. This can control methyl alcohol distillation tower cooling performance's waste gas heat exchanger, threaded connection through movable rod and lead screw, the sliding connection in movable rod and second device storehouse, and the sliding connection in closing plate and the first device storehouse, when making servo motor drive the lead screw and rotate, the closing plate can reciprocate thereupon, thereby make things convenient for operating personnel to adjust according to the actual temperature of waste gas, and make things convenient for operator's personnel to link together delivery pipe and first device storehouse fast, and can keep its sealed effect in the installation.

Description

Waste gas heat exchanger capable of controlling cooling performance of methanol distillation tower

Technical Field

The utility model relates to a waste gas heat exchange technical field specifically is a can control waste gas heat exchanger of methyl alcohol distillation tower cooling performance.

Background

Methanol is one of raw materials widely used in modern industrial production, and is called as xylitol or wood essence, and is mainly used for manufacturing agricultural insect repellents or industrial production extractants and the like, a methanol distillation tower is needed to distill and purify the methanol when the methanol is manufactured, a part of waste gas is generated in the manufacturing process, and the waste gas is generally required to be subjected to heat exchange treatment when being discharged, except that harmful substances in the waste gas are required to be removed, so that redundant heat is removed or reused, and a traditional methanol distillation tower waste gas heat exchanger can basically meet the use requirements of people, but still has certain problems, and the specific problems are as follows:

1. when the existing methanol distillation tower waste gas heat exchanger is used, the cooling performance is generally fixed, but in the actual use process, the temperature of the discharged waste gas is not fixed, so that the device cannot adjust the cooling performance according to the specific temperature of the waste gas;

2. when the existing methanol distillation tower waste gas heat exchanger is used, the heat exchanger is generally connected with a waste gas discharge pipeline in a screw rod mode and the like, but in the actual operation process, the installation is troublesome, and the looseness is easy to occur due to vibration and the like after the use time is long.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can control methyl alcohol distillation tower cooling performance's waste gas heat exchanger to solve the current methyl alcohol distillation tower waste gas heat exchanger that proposes in the above-mentioned background art and be not convenient for according to waste gas temperature regulation cooling performance itself, and the comparatively troublesome and easy not hard up problem of installation.

In order to achieve the above object, the utility model provides a following technical scheme: a waste gas heat exchanger capable of controlling cooling performance of a methanol distillation tower comprises a first device bin, a second device bin and a discharge pipe, wherein a guide pipe is arranged inside the first device bin, a cooling pipe is arranged on the outer side of the guide pipe, two ends of the cooling pipe penetrate through the first device bin, the second device bin is arranged at the top of the first device bin, a servo motor is fixed at the top of the second device bin, the output end of the servo motor is connected with a lead screw penetrating through the second device bin, a movable rod penetrating through the second device bin is sleeved on the outer side of the lead screw, a sealing plate penetrating through the first device bin is arranged on one side, away from the second device bin, of the bottom of the movable rod, a connecting piece is communicated with one side of the first device bin, a rubber sealing ring is adhered to one side, close to the first device bin, of the inner wall of the connecting piece, and a first limiting groove is arranged on one side, close to the first device bin, the inside of connecting piece is provided with the delivery pipe, and the outer wall of delivery pipe has seted up the second spacing groove, the intermediate position department of connecting piece outer wall runs through there is the gag lever post, be connected with the spring between gag lever post and the connecting piece, the collar is all installed to the both sides of connecting piece outer wall, and the inboard of collar is provided with the pivot, the elliptical extrusion spare is installed to the intermediate position department in the pivot outside, and the pivot is close to the outside cover of first device storehouse one end and establish and be fixed with the gear, the outside cover of collar is equipped with the swivel becket, and the swivel becket inner wall is close to one side in first device storehouse and install the rack, the mounting groove has been seted up to the one end that the swivel becket is close to first device storehouse, and the inboard of mounting groove is fixed with the fixed axle, the outside.

Preferably, a partition board is installed on one side of the guide pipe, and a support plate is fixed at the middle position of one side of the partition board, which is far away from the guide pipe.

Preferably, the movable rod is in threaded connection with the screw rod, and the movable rod and the second device bin form a relative sliding structure.

Preferably, the limiting rod is distributed at equal angles relative to the central axis of the connecting piece, and the limiting rod and the connecting piece form a relative sliding structure.

Preferably, the rotating shafts are distributed at equal angles relative to the central axis of the connecting piece, and the rotating shafts and the mounting ring form a relative rotating structure.

Preferably, the rack has a ring-shaped side cross section, and the rack is in meshed connection with the gear.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the threaded connection of the movable rod and the screw rod, the sliding connection of the movable rod and the second device bin and the sliding connection of the sealing plate and the first device bin, when the servo motor drives the screw rod to rotate, the sealing plate can move up and down along with the screw rod, and when the sealing plate shields the opening at the top of the guide pipe, airflow can continuously flow along the guide pipe until the airflow flows out through the opening at the bottom of the guide pipe, so that the airflow can be cooled by more cooling pipes, and an operator can conveniently adjust the airflow according to the actual temperature of waste gas;

2. through the sliding connection between the limiting rod and the connecting piece and the transmission connection between the rotating shaft and the rotating ring, after the rotation limitation of the rotating ring is removed by an operator, the rotating shaft and the elliptical extrusion piece can be driven to rotate through the rotating ring, so that the limiting rod is extruded into the second limiting groove by the elliptical extrusion piece, the discharging pipe is limited and fixed, and the operator can conveniently and quickly connect the discharging pipe with the first device bin;

3. through the trapezoidal shape of second spacing groove for when the gag lever post inserts the second spacing groove and carries out spacingly to the delivery pipe, can extrude the hypotenuse of second spacing groove, and then make the gag lever post remove to the direction that is close to first device storehouse, until closely laminating with rubber seal ring, thereby guarantee its sealed effect.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of the present invention;

FIG. 4 is a schematic side view of the rotating ring of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;

FIG. 6 is a schematic side sectional view of the present invention;

fig. 7 is an enlarged schematic structural view of fig. 6 at C according to the present invention.

In the figure: 1. a first device bin; 2. a guide tube; 3. a cooling tube; 4. a partition plate; 5. a support plate; 6. a second device bin; 7. a servo motor; 8. a screw rod; 9. a movable rod; 10. a sealing plate; 11. a connecting member; 12. a rubber seal ring; 13. a first limit groove; 14. a discharge pipe; 15. a second limit groove; 16. a limiting rod; 17. a spring; 18. a mounting ring; 19. a rotating shaft; 20. an elliptical extrusion; 21. a gear; 22. a rotating ring; 23. a rack; 24. mounting grooves; 25. a fixed shaft; 26. an operating lever; 27. a coil spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a waste gas heat exchanger capable of controlling cooling performance of a methanol distillation tower comprises a first device bin 1, a second device bin 6 and a discharge pipe 14, wherein a guide pipe 2 is installed inside the first device bin 1, a cooling pipe 3 is arranged outside the guide pipe 2, two ends of the cooling pipe 3 penetrate through the first device bin 1, a partition plate 4 is installed on one side of the guide pipe 2, a support plate 5 is fixed at the middle position of the partition plate 4 far away from one side of the guide pipe 2, the partition plate 4 can block waste gas discharged from the guide pipe 2 to prevent the waste gas from entering the first device bin 1, the support plate 5 can be further supported by a seal plate 10, and therefore stability of the seal plate 10 when the seal plate is impacted by airflow when the guide pipe 2 is sealed is guaranteed;

the top of the first device bin 1 is provided with a second device bin 6, the top of the second device bin 6 is fixedly provided with a servo motor 7, the type of the servo motor 7 can be DA22422, the output end of the servo motor 7 is connected with a screw rod 8 penetrating through the second device bin 6, the outer side of the screw rod 8 is sleeved with a movable rod 9 penetrating through the second device bin 6, the movable rod 9 and the screw rod 8 are in threaded connection, the movable rod 9 and the second device bin 6 form a relative sliding structure, the sealing plate 10 and the first device bin 1 form a relative sliding structure, when the servo motor 7 drives the screw rod 8 to rotate, the movable rod 9 can drive the sealing plate 10 to move upwards or downwards, when the sealing plate 10 moves downwards, the discharge port at the top of one side of the guide tube 2 can be sealed, so that air flow must be discharged from the discharge port at the bottom of one side of the guide tube 2 through a longer stroke, further, the time for heat exchange between the exhaust gas and the cooling pipe 3 is prolonged, and the cooling performance is improved, so that an operator can adjust the cooling performance according to the specific temperature of the exhaust gas;

a sealing plate 10 penetrating through the first device bin 1 is arranged on one side of the bottom of the movable rod 9 far away from the second device bin 6, a connecting piece 11 is communicated with one side of the first device bin 1, a rubber sealing ring 12 is adhered on one side of the inner wall of the connecting piece 11 close to the first device bin 1, a first limiting groove 13 is arranged on one side of the outer wall of the connecting piece 11 close to the first device bin 1, a discharge pipe 14 is arranged inside the connecting piece 11, a second limiting groove 15 is arranged on the outer wall of the discharge pipe 14, a limiting rod 16 penetrates through the middle position of the outer wall of the connecting piece 11, the limiting rod 16 is distributed at equal angles relative to the central axis of the connecting piece 11, the limiting rod 16 and the connecting piece 11 form a relative sliding structure, the side cross section of the second limiting groove 15 is trapezoidal, when the limiting rod 16 is extruded, the limiting rod can be inserted into the second limiting groove 15 to limit and fix the discharge pipe 14, and meanwhile, so that the discharge pipe 14 can move towards the reverse direction close to the rubber sealing ring 12 until the discharge pipe is tightly attached to the rubber sealing ring 12, thereby ensuring the sealing property;

a spring 17 is connected between the limiting rod 16 and the connecting piece 11, mounting rings 18 are mounted on two sides of the outer wall of the connecting piece 11, a rotating shaft 19 is arranged on the inner side of each mounting ring 18, the rotating shaft 19 is distributed at equal angles relative to the central axis of the connecting piece 11, and the rotating shaft 19 and the mounting rings 18 form a relative rotating structure, so that the rotating shaft 19 can drive the elliptical extrusion piece 20 to rotate along with the rotating shaft when rotating, and when the elliptical extrusion piece 20 rotates, the longer shaft edge can extrude the limiting rod 16, and further the limiting rod 16 can slide towards the inside of the second limiting groove 15, and the limiting of the discharge pipe 14 is completed;

an elliptical extrusion part 20 is arranged at the middle position of the outer side of the rotating shaft 19, a gear 21 is fixedly sleeved on the outer side of one end of the rotating shaft 19 close to the first device bin 1, a rotating ring 22 is sleeved on the outer side of the mounting ring 18, a rack 23 is arranged on one side of the inner wall of the rotating ring 22 close to the first device bin 1, the side section of the rack 23 is annular, the rack 23 is meshed with the gear 21, a mounting groove 24 is formed in one end of the rotating ring 22 close to the first device bin 1, a fixing shaft 25 is fixed on the inner side of the mounting groove 24, an operating rod 26 is sleeved on the outer side of the fixing shaft 25, a coil spring 27 is connected between the operating rod 26 and the rotating ring 22, the rotating ring 22 and the mounting ring 18 form a relative rotating structure, the operating rod 26 and the fixing shaft 25 form a relative rotating structure, so that an operator can rotate the operating rod 26 away from the inside, the rotation of the rotating ring 22 by holding the operating rod 26 causes the rack 23 to rotate, and the rotating shaft 19 to rotate, so that the rotating shaft 19 can cause the elliptical extrusion member 20 to rotate and perform the subsequent operation of limiting the discharge pipe 14.

The working principle is as follows: when the waste gas heat exchanger capable of controlling the cooling performance of the methanol distillation tower is used, the limiting rod 16 on the rotating ring 22 is aligned with the second limiting groove 15 on the discharge pipe 14 and is sleeved at one end of the discharge pipe 14, the operating rod 26 is rotated towards the direction far away from the inside of the first limiting groove 13 through the rotating connection of the operating rod 26 and the fixed shaft 25 and the elasticity of the coil spring 27 until the operating rod 26 leaves the inside of the first limiting groove 13 and is vertically rotated again, the operating rod 26 is held and the rotating ring 22 is driven to rotate forwards through the rotating connection of the rotating ring 22 and the mounting ring 18, the rotating shaft 19 is respectively connected with the meshing of the racks 23 through the plurality of groups of gears 21, and the rotating shaft 19 is connected with the mounting ring 18 in a rotating manner, so that the rotating shaft 19 can rotate along with the rotating shaft, the elliptical extrusion piece 20 is driven to extrude the limiting rod 16 along with the rotating shaft, and, and the elasticity of the spring 17, so that the limiting rod 16 can slide towards the inside of the second limiting groove 15, so as to limit and fix the discharge pipe 14, meanwhile, through the trapezoidal shape of the second limiting groove 15, the limiting rod 16 can extrude the oblique side of the second limiting groove 15 while being inserted, so that the discharge pipe 14 can extrude the rubber sealing ring 12 along with the limiting rod, after the limiting rod 16 is completely positioned in the second limiting groove 15, the operating rod 26 is slowly released under the condition that the rotating ring 22 is kept not to rotate, and under the elastic action of the coil spring 27, the operating rod 26 rotates towards the inside of the corresponding first limiting groove 13 until being inserted into the corresponding first limiting groove 13, so that the rotation of the rotating ring 22 is limited, and the position of the discharge pipe 14 is fixed at the position of sealing connection with the first device chamber 1;

after the installation is finished, the device is powered on, two ends of the cooling pipe 3 are respectively communicated with the cooling liquid supply and recooling mechanism, so that the cooling pipe 3 and the cooling liquid supply and recooling mechanism form a closed loop, further, the cooling liquid in the cooling pipe 3 can continuously flow in a circulating manner, after waste gas in the discharge pipe 14 enters the guide pipe 2, the waste gas is discharged outwards through an opening at the top of one side, away from the connecting piece 11, of the guide pipe 2, in the process that the waste gas passes through the guide pipe 2, the cooling pipe 3 wound outside the guide pipe 2 can complete heat exchange with the waste gas, when the temperature of the waste gas is higher, the servo motor 7 is controlled to drive the screw rod 8 to rotate forwards, the movable rod 9 is connected with the screw rod 8 through the thread of the movable rod 9, the movable rod 9 is connected with the second device bin 6 in a sliding manner, and the sealing plate 10 is connected with the first device bin 1 in a sliding manner, seal the opening part of the guide pipe 2 far away from the top of one side of the connecting piece 11 until the contact of the sealing plate 10 and the supporting plate 5, so that the air flow can continue to flow in the guide pipe 2 until the air flow is discharged from the opening part of the bottom of one side of the connecting piece 11 through the guide pipe 2, in the process, the stroke of the guide pipe 2 through which the waste gas passes is longer, therefore, the heat exchange time of the cooling pipe 3 and the waste gas is longer, and further, the heat exchange degree can be higher, and the device can adjust the performance of a cold area according to the actual temperature of the waste gas.

Claims (6)

1. An exhaust gas heat exchanger capable of controlling cooling performance of a methanol distillation tower, comprising a first device bin (1), a second device bin (6) and a discharge pipe (14), characterized in that: the device comprises a first device bin (1), a guide pipe (2) is arranged inside the first device bin (1), a cooling pipe (3) is arranged on the outer side of the guide pipe (2), both ends of the cooling pipe (3) penetrate through the first device bin (1), a second device bin (6) is arranged at the top of the first device bin (1), a servo motor (7) is fixed at the top of the second device bin (6), the output end of the servo motor (7) is connected with a lead screw (8) penetrating through the second device bin (6), a movable rod (9) penetrating through the second device bin (6) is sleeved on the outer side of the lead screw (8), a sealing plate (10) penetrating through the first device bin (1) is arranged on one side, far away from the second device bin (6), of the bottom of the movable rod (9), a connecting piece (11) is communicated with one side of the first device bin (1), and a rubber sealing ring (12) is adhered to one side, close to the first device bin (1), of the inner wall of the connecting, a first limiting groove (13) is formed in one side, close to the first device bin (1), of the outer wall of the connecting piece (11), a discharge pipe (14) is arranged inside the connecting piece (11), a second limiting groove (15) is formed in the outer wall of the discharge pipe (14), a limiting rod (16) penetrates through the middle position of the outer wall of the connecting piece (11), a spring (17) is connected between the limiting rod (16) and the connecting piece (11), mounting rings (18) are mounted on two sides of the outer wall of the connecting piece (11), a rotating shaft (19) is arranged on the inner side of each mounting ring (18), an elliptical extrusion piece (20) is mounted in the middle position of the outer side of each rotating shaft (19), a gear (21) is fixedly sleeved on the outer side, close to one end of the first device bin (1), of each rotating shaft (19) is sleeved with a rotating ring (22), and a rack (23) is mounted on one side, close to the first device bin (1), of the inner wall, mounting groove (24) have been seted up to the one end that swivel becket (22) is close to first device storehouse (1), and the inboard of mounting groove (24) is fixed with fixed axle (25), the outside cover of fixed axle (25) is equipped with action bars (26), and is connected with between action bars (26) and swivel becket (22) wind spring (27).

2. The off-gas heat exchanger capable of controlling cooling performance of a methanol distillation tower according to claim 1, wherein: a partition plate (4) is installed on one side of the guide pipe (2), and a support plate (5) is fixed at the middle position of one side, far away from the guide pipe (2), of the partition plate (4).

3. The off-gas heat exchanger capable of controlling cooling performance of a methanol distillation tower according to claim 1, wherein: the movable rod (9) is in threaded connection with the screw rod (8), and the movable rod (9) and the second device bin (6) form a relative sliding structure.

4. The off-gas heat exchanger capable of controlling cooling performance of a methanol distillation tower according to claim 1, wherein: the limiting rod (16) is distributed in an equal angle relative to the central axis of the connecting piece (11), and the limiting rod (16) and the connecting piece (11) form a relative sliding structure.

5. The off-gas heat exchanger capable of controlling cooling performance of a methanol distillation tower according to claim 1, wherein: the rotating shaft (19) is distributed at equal angles relative to the central axis of the connecting piece (11), and the rotating shaft (19) and the mounting ring (18) form a relative rotating structure.

6. The off-gas heat exchanger capable of controlling cooling performance of a methanol distillation tower according to claim 1, wherein: the side section of the rack (23) is annular, and the rack (23) is meshed with the gear (21).

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