阅读说明：本技术 裂解气急冷器 (Pyrolysis gas quencher ) 是由 高阳 梅新月 姜玲 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种裂解气急冷器,涉及换热器技术领域,其技术方案要点是包括缓冲箱体、与缓冲箱体连通的进气冷却管和出气冷却管,还包括设置在进气冷却管和出气冷却管上的清理装置；所述清理装置包括安装在进气冷却管和出气冷却管顶端的连接盖、缸体固定在连接盖上的气缸、与气缸的活塞杆固定连接的固定杆、固定连接在固定杆远离气缸一端的连接杆以及安装在连接杆上的清理环；清理环的内侧固定有连接柱,连接柱的一端与清理环固定连接,另一端与连接杆固定连接。本申请方便对冷却管的内部进行清理,具有减少因碳灰附着造成的气体冷却效果降低的情况出现的效果。(The invention discloses a cracked gas quencher, which relates to the technical field of heat exchangers and adopts the technical scheme that the quencher comprises a buffer box body, an air inlet cooling pipe and an air outlet cooling pipe which are communicated with the buffer box body, and cleaning devices arranged on the air inlet cooling pipe and the air outlet cooling pipe; the cleaning device comprises a connecting cover arranged at the top ends of the inlet cooling pipe and the outlet cooling pipe, an air cylinder with a cylinder body fixed on the connecting cover, a fixed rod fixedly connected with a piston rod of the air cylinder, a connecting rod fixedly connected with one end of the fixed rod far away from the air cylinder and a cleaning ring arranged on the connecting rod; the inner side of the cleaning ring is fixed with a connecting column, one end of the connecting column is fixedly connected with the cleaning ring, and the other end of the connecting column is fixedly connected with the connecting rod. This application is convenient clears up the inside of cooling tube, has the effect that the reduction reduces because of the carbon dust adheres to the condition appearance that the gas cooling effect that causes reduces.)

1. The utility model provides a pyrolysis gas quencher, includes buffer box (1), with cooling tube (2) and the cooling tube (3) of giving vent to anger of buffer box (1) intercommunication, its characterized in that: the cleaning device (4) is arranged on the air inlet cooling pipe (2) and the air outlet cooling pipe (3); the cleaning device (4) comprises a connecting cover (41) arranged at the top ends of the air inlet cooling pipe (2) and the air outlet cooling pipe (3), an air cylinder (42) with a cylinder body fixed on the connecting cover (41), a fixing rod (43) fixedly connected with a piston rod of the air cylinder (42), a connecting rod (45) fixedly connected with one end, far away from the air cylinder (42), of the fixing rod (43), and a cleaning ring (46) arranged on the connecting rod (45); a connecting column (461) is fixed on the inner side of the cleaning ring (46), one end of the connecting column (461) is fixedly connected with the cleaning ring (46), and the other end is fixedly connected with the connecting rod (45).

2. The cracked gas chiller as defined in claim 1 wherein: a sealing plug (44) is fixed on the side wall of the fixing rod (43), an air inlet branch pipe (21) is communicated with the air inlet cooling pipe (2), and an air outlet branch pipe (31) is communicated with the air outlet cooling pipe (3); the sealing plug (44) is positioned above the air inlet branch pipe (21) and the air outlet branch pipe (31), and the diameter of the sealing plug (44) is the same as the inner diameter of the air inlet cooling pipe (2) and the air outlet cooling pipe (3).

3. The cracked gas chiller as defined in claim 1 wherein: the connecting cover (41) is in threaded connection with the air inlet cooling pipe (2) and the air outlet cooling pipe (3).

4. The cracked gas chiller as defined in claim 3 wherein: the fixed rod (43) is in threaded connection with the connecting rod (45); the number of the connecting rods (45) is multiple, and two adjacent connecting rods (45) are in threaded connection.

5. The cracked gas chiller as defined in claim 1 wherein: the cleaning ring (46) is obliquely arranged, and one side close to the inner walls of the air inlet cooling pipe (2) and the air outlet cooling pipe (3) is the side with a high inclined surface.

6. The cracked gas chiller as defined in claim 1 wherein: the bottom end of the air inlet cooling pipe (2) is provided with a collecting assembly (5); the collecting assembly (5) comprises a fixing ring (51) fixed on the outer wall of the air inlet cooling pipe (2), a filter bag (52) sleeved on the fixing ring (51) and a fixing piece for fixing the filter bag (52).

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a cracked gas quencher.

Background

In the technical process of producing vinylidene fluoride (VDF) by adopting difluoromono-chloroethane (R142b) for cracking, a large amount of carbon ash is generated in the cracking process, and when carbon-containing cracked gas passes through subsequent quenching equipment, because the prior quenching equipment usually adopts a shell-and-tube heat exchanger, the carbon-containing cracked gas can be accumulated in a heat exchange tube in a large amount when passing through the heat exchange tube, so that the heat exchange efficiency of the quenching equipment is reduced.

For solving above-mentioned problem, the chinese utility model patent of the prior art grant publication number for CN207456236U discloses a novel quench cooler of incomplete charcoal is hanged down to pyrolysis gas includes gas cushion tank and at least a set of heat exchange tube, the heat exchange tube setting is on gas cushion tank upper portion, and heat exchange tube one end is connected with gas cushion tank, the heat exchange tube is equipped with the sleeve pipe outward, sleeve pipe upper end and lower extreme are provided with water inlet and delivery port respectively, be filled with the pyrolysis gas in the cooling water heat exchange tube in the sleeve pipe, gas cushion tank one end is equipped with the scavenge port, the scavenge port is equipped with the cover outward.

After the quencher is used for a long time, a little carbon dust is still attached to the inner surfaces of the air inlet pipe and the air outlet pipe, so that the cooling effect of the gas is influenced. However, the length of the inlet pipe and the outlet pipe is long, and it is inconvenient to attach carbon soot to the inner surfaces of the inlet pipe and the outlet pipe.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art and provide a pyrolysis gas quencher which reduces the reduction of gas cooling effect caused by carbon ash adhesion by additionally arranging cleaning components in the gas inlet pipe and the gas outlet pipe.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pyrolysis gas quencher comprises a buffer box body, an air inlet cooling pipe and an air outlet cooling pipe which are communicated with the buffer box body, and also comprises cleaning devices arranged on the air inlet cooling pipe and the air outlet cooling pipe; the cleaning device comprises a connecting cover arranged at the top ends of the inlet cooling pipe and the outlet cooling pipe, an air cylinder with a cylinder body fixed on the connecting cover, a fixed rod fixedly connected with a piston rod of the air cylinder, a connecting rod fixedly connected with one end of the fixed rod far away from the air cylinder and a cleaning ring arranged on the connecting rod; the inner side of the cleaning ring is fixed with a connecting column, one end of the connecting column is fixedly connected with the cleaning ring, and the other end of the connecting column is fixedly connected with the connecting rod.

Preferably, a sealing plug is fixed on the side wall of the fixed rod, an air inlet branch pipe is communicated with the air inlet cooling pipe, and an air outlet branch pipe is communicated with the air outlet cooling pipe; the sealing plugs are positioned above the air inlet branch pipes and the air outlet branch pipes, and the diameters of the sealing plugs are the same as the inner diameters of the air inlet cooling pipes and the air outlet cooling pipes.

Preferably, the connecting cover is in threaded connection with the air inlet cooling pipe and the air outlet cooling pipe.

Preferably, the fixing rod is in threaded connection with the connecting rod; the number of the connecting rods is multiple, and the two adjacent connecting rods are in threaded connection.

Preferably, the cleaning ring is obliquely arranged, and one side of the cleaning ring close to the inner walls of the inlet cooling pipe and the outlet cooling pipe is the side with a higher inclined surface.

Preferably, the bottom end of the inlet air cooling pipe is provided with a collecting assembly; the collecting assembly comprises a fixing ring fixed on the outer wall of the air inlet cooling pipe, a filter bag sleeved on the fixing ring and a fixing piece for fixing the filter bag.

The invention has the following beneficial effects:

(1) when the inner walls of the inlet cooling pipe and the outlet cooling pipe need to be cleaned, the air cylinder is started to drive the cleaning ring to move upwards, and carbon dust attached to the inner walls of the inlet cooling pipe and the outlet cooling pipe is scraped, so that the inner walls of the inlet cooling pipe and the outlet cooling pipe are conveniently cleaned; the cleaning assemblies are additionally arranged in the air inlet pipe and the air outlet pipe, so that the condition that the gas cooling effect is reduced due to the attachment of carbon dust is reduced;

(2) the sealing plug can prevent the tightness of the connection between the air inlet cooling pipe and the air outlet cooling pipe and the cleaning device, so that the escape of gas is reduced;

(3) the carbon dust cleaned by the cleaning device is collected through the filter bag, so that the buffer box body can be cleaned conveniently in the later period.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic structural view showing a cleaning apparatus;

fig. 3 is a schematic view showing the structure of the collecting apparatus.

Wherein the figures include the following reference numerals: 1. a buffer box body; 11. an access cover; 2. an intake air cooling pipe; 21. an intake branch pipe; 3. an air outlet cooling pipe; 31. an air outlet branch pipe; 4. a cleaning device; 41. a connecting cover; 42. a cylinder; 43. fixing the rod; 44. a sealing plug; 45. a connecting rod; 46. cleaning a ring; 461. connecting columns; 5. a collection assembly; 51. a fixing ring; 52. a filter bag; 53. and (5) clamping a hoop.

Detailed Description

The invention will be further explained with reference to the drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: a cracked gas quencher, see figure 1, comprises a buffer box body 1, an inlet cooling pipe 2 and an outlet cooling pipe 3 which are communicated with the buffer box body 1, and a cleaning device 4 which is arranged on the inlet cooling pipe 2 and the outlet cooling pipe 3. An air inlet branch pipe 21 is communicated with the air inlet cooling pipe 2; an air outlet branch pipe 31 is communicated with the air outlet cooling pipe 3; the gas enters from the inlet branch pipe 21, passes through the inlet cooling pipe 2, the buffer box body 1 and the outlet cooling pipe 3, and then leaves through the outlet branch pipe 31. The access cover 11 is further installed on one side of the buffer box body 1, and the access cover 11 is fixedly connected with the buffer box body 1 through a bolt, so that the later-stage access cover 11 is convenient to detach.

Referring to fig. 2, the cleaning device 4 includes a connecting cover 41 disposed on the top ends of the inlet cooling pipe 2 and the outlet cooling pipe 3, a cylinder 42 with a cylinder body fixed on the connecting cover 41, a fixing rod 43 fixedly connected with the piston rod of the cylinder 42, a sealing plug 44 fixedly connected with the side wall of the fixing rod 43, a connecting rod 45 fixedly connected with one end of the fixing rod 43 far away from the cylinder 42, and a cleaning ring 46 mounted on the connecting rod 45.

The top ends of the inlet cooling pipe 2 and the outlet cooling pipe 3 are provided with openings for placing a cleaning device 4; and the connection cap 41 is screw-coupled with the inlet cooling pipe 2 and the outlet cooling pipe 3 to increase the sealability of the connection cap 41.

The cylinder body of the air cylinder 42 is vertically arranged, the piston rod of the air cylinder 42 penetrates through the connecting cover 41 and is in sliding connection with the connecting cover 41, and the piston rod of the air cylinder 42 extends into the air inlet cooling pipe 2 and the air outlet cooling pipe 3.

The diameter of the sealing plug 44 is the same as the inner diameter of the inlet cooling pipe 2 and the outlet cooling pipe 3, so that the sealing plug 44 can abut against the inner walls of the inlet cooling pipe 2 and the outlet cooling pipe 3. When the piston rod of the cylinder 42 reaches the extension limit, the sealing plug 44 is positioned above the inlet branch pipe 21 and the outlet branch pipe 31, so that the movable range of the sealing plug 44 is always positioned above the inlet branch pipe 21 and the outlet branch pipe 31. In the process, the sealing plug 44 plays a role of blocking, so that gas is prevented from entering the upper part of the sealing plug 44, and the gas overflows from the joint of the cylinder 42 and the connecting cover 41, so that the sealing effect of the cleaning device 4 is improved.

The fixing rod 43 is in threaded connection with the connecting rod 45, so that the connecting rod 45 is convenient to mount and dismount. The quantity of connecting rod 45 is many, connects through the mode of screw thread each other to the cooling tube 2 and the cooling tube 3 of giving vent to anger that adaptation length is longer, thereby the convenience is to cleaning device 4's installation.

A connecting column 461 is fixed on the inner side of the cleaning ring 46, one end of the connecting column 461 is fixedly connected with the cleaning ring 46, and the other end of the connecting column 461 is fixedly connected with the connecting rod 45, so that the cleaning ring 46 is fixed. The external diameter of clearance ring 46 is the same with the internal diameter of cooling tube 2 and the cooling tube 3 of giving vent to anger for the outside of clearance ring 46 can with the inner wall butt of cooling tube 2 and the cooling tube 3 of giving vent to anger of admitting air, when clearance ring 46 along the inner wall motion of cooling tube 2 and the cooling tube 3 of giving vent to anger of admitting air, clearance ring 46 can scrape the carbon dust that attaches to the cooling tube 2 and the cooling tube 3 inner wall of giving vent to anger and remove, the realization is to the clearance of the cooling tube 2 and the cooling tube 3 inner wall of giving vent to anger of admitting air. Meanwhile, the cleaning ring 46 is obliquely arranged, and one side of the inner wall of the air inlet cooling pipe 2 and the inner wall of the air outlet cooling pipe 3 is the side with a high inclined surface, so that scraped carbon dust can slide to the bottom ends of the air inlet cooling pipe 2 and the air outlet cooling pipe 3 along the oblique cleaning ring 46.

Referring to fig. 3, the bottom end of the charge air cooling pipe 2 is also mounted with a collecting assembly 5. The collecting assembly 5 comprises a fixing ring 51 fixed on the outer wall of the inlet cooling pipe 2, a filter bag 52 sleeved on the fixing ring 51 and a clamp 53 carried out on the filter bag 52. When the filter bag 52 is sleeved on the fixing ring 51, the clamp 53 is tightly sleeved at the moment, so that the clamp 53 is tightly sleeved on the filter bag 52 sleeved on the fixing ring 51 to fix the filter bag 52. The carbon dust cleaned by the cleaning device 4 is collected through the filter bag 52, so that the buffer box body 1 can be cleaned conveniently in the later period.

The use principle is as follows: when the side walls of the inlet cooling pipe 2 and the outlet cooling pipe 3 need to be cleaned, the air cylinder 42 is started to drive the fixing rod 43 and the connecting rod 45 to do up-and-down reciprocating motion, so that the cleaning ring 46 is driven to do up-and-down reciprocating motion, and in the up-and-down reciprocating motion process of the cleaning ring 46, the cleaning ring 46 scrapes off carbon dust on the surfaces of the inlet cooling pipe 2 and the outlet cooling pipe 3; wherein the attached carbon dust is more in the cooling tube 2 that admits air, overlaps with filter bag 52 in the bottom of cooling tube 2 that admits air to the convenience is collected the carbon dust that drops.

In the description of the present invention, it should be noted that the terms "front end", "rear end", "left and right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.