CN210426159U

CN210426159U - Primary liquefier

Info

Publication number: CN210426159U
Application number: CN201920735253.1U
Authority: CN
Inventors: 齐银君; 魏续华; 王龙华; 邵金龙; 任立军
Original assignee: Ningxia Fengcheng Equipment Manufacturing Co ltd
Current assignee: Ningxia Fengcheng Equipment Manufacturing Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-04-28
Anticipated expiration: 2029-05-22

Abstract

The utility model provides a one-level liquefier, this one-level liquefier includes: the device comprises a main shell, an upper end enclosure and a lower end enclosure; an upper tube plate and a lower tube plate are correspondingly sealed and rotated in the upper seal head and the lower seal head; a tube bundle is fixedly connected between the upper tube plate and the lower tube plate, a plurality of arched baffle plates are connected to the tube bundle, the arched baffle plates are arranged at intervals in a staggered manner, and the arched baffle plates are rotatably connected to the inner wall of the main shell; the pneumatic pressurizing assembly is arranged at the top of the upper end socket and rotates relative to the upper pipe plate; wherein, the driving component is connected with the pneumatic pressurizing component through a gear device. In the embodiment, the upper tube plate, the tube bundle, the lower tube plate and the arched baffle plate synchronously rotate, so that the retention time of the gaseous material in the tube bundle is prolonged, and the rotating arched baffle plate ensures that a cooling medium does not have dead corners to flow and exchange heat, so that the liquefaction effect is enhanced; and the pneumatic pressurizing assembly can be used for filling the gaseous materials in the tube bundle.

Description

Primary liquefier

The technical field is as follows:

the utility model relates to liquefier technical field especially involves a one-level liquefier.

Background art:

in the chemical industry, materials are often required to be liquefied, so the working efficiency of a liquefier is related to the actual production efficiency of the process to a certain extent.

However, the cooling medium in the existing liquefier can have the baffle plate to be close to the cooling medium of the liquefier wall part and not flow or flow slowly when passing through the baffle plate, so that heat exchange can not be well carried out, and the gaseous material can be influenced by pressure when being pumped into the liquefier to rapidly pass through the tube bundle, so that the liquefying effect is not significant, and the gas material which is not liquefied fully is discharged from the non-condensable gas outlet, thereby causing unnecessary waste.

The utility model has the following contents:

in view of this, it is necessary to design a primary liquefier to enhance the cooling effect and slow down the retention time of the gas material during the liquefaction operation to achieve sufficient liquefaction.

A primary liquefier, comprising: the device comprises a main shell, an upper end enclosure for sealing the top end of the main shell and a lower end enclosure for sealing the bottom end of the main shell; the upper end enclosure is internally and rotatably connected with an upper tube plate in a sealing manner, and the lower end enclosure is internally and rotatably provided with a lower tube plate in a sealing manner; a tube bundle is fixedly connected between the upper tube plate and the lower tube plate, a plurality of arch-shaped baffle plates are connected to the tube bundle, the arch-shaped baffle plates are arranged at intervals in a staggered manner along the height direction of the tube bundle, and the arch-shaped baffle plates are rotatably connected to the inner wall of the main shell;

the pneumatic pressurization device also comprises a driving assembly for driving the upper tube plate to rotate and a pneumatic pressurization assembly arranged at the top of the upper end enclosure and rotating relative to the upper tube plate; the driving assembly is connected with the pneumatic pressurizing assembly through a gear device.

Preferably, the upper end enclosure and the lower end enclosure are respectively connected with the main shell through flanges.

Preferably, the upper end enclosure and the lower end enclosure are internally provided with mounting grooves along the circumferential direction, and the outer rings of the upper tube plate and the lower tube plate are respectively provided with a convex shoulder which is in running fit with the corresponding mounting grooves in the circumferential direction.

Preferably, a plurality of balls are nested at the upper end and the lower end of each mounting groove along the circumferential direction, and the corresponding convex shoulder is provided with a ball groove matched with the balls.

Preferably, a through hole is formed in the center of the top of the upper end enclosure, and a bearing is sleeved in the through hole; the driving assembly comprises a low-speed motor which is arranged on the upper portion of the upper end enclosure in an inverted mode, an output shaft of the low-speed motor is connected with a shaft rod which is sleeved in the bearing, and one end, far away from the output shaft of the low-speed motor, of the shaft rod is connected with the circle center of the upper tube plate.

Preferably, the pneumatic compression assembly comprises: the mounting frame is arranged in the upper end enclosure and is higher than the upper tube plate; the fan mounting structure further comprises a plurality of fans circumferentially distributed in the mounting frame; the gear device comprises a driving gear arranged on each fan and a main gear sleeved on the shaft rod; each driving gear is connected with a corresponding fan through a gearbox, and the main gear is meshed with the plurality of driving gears simultaneously.

Preferably, the inner wall of the main shell is provided with annular grooves at intervals along the height direction, and the plurality of bow-shaped baffle plates are assembled in the annular grooves in a one-to-one corresponding sliding manner.

Preferably, a plurality of reinforcing ribs surrounding the tube bundle are connected between the upper tube plate and the lower tube plate, and reinforcing plates are welded on the reinforcing ribs.

The utility model adopts the synchronous rotation of the upper tube plate, the tube bundle, the lower tube plate and the arched baffle plate, so that the retention time of the gaseous material in the tube bundle is prolonged, and the rotary arched baffle plate ensures that the cooling medium has no dead angle for flowing heat exchange, thereby enhancing the liquefaction effect; and the pneumatic pressurizing assembly enables the gaseous materials in the tube bundle to be more full, and the liquefaction effect of the gas is effectively enhanced.

Description of the drawings:

FIG. 1 is a schematic diagram of a prior art liquefier;

fig. 2 is a schematic structural diagram of a primary liquefier provided in the present invention;

fig. 3 is a schematic structural diagram of a gear device according to an embodiment of the present invention.

Reference numerals: main shell-10 upper end enclosure-20 lower end enclosure-30 tube bundle-40 bow baffle-50 tube pass air inlet-60 tube pass liquid outlet-70 cooling water inlet-80 cooling water outlet-90 flange-11 ring groove-12 reinforcing rib-13 upper tube plate-21 low speed motor-22 shaft rod-23 fan-24 gear box-25 mounting rack-26 main gear-27 driving gear-28 lower tube plate-31 mounting groove-32

The specific implementation mode is as follows:

the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Firstly, in order to facilitate understanding of the first-stage liquefier provided in the embodiment of the present application, an application scenario of the first-stage liquefier is described first, and the first-stage liquefier provided in the embodiment of the present application is used for prolonging the condensation time of a gas material and enabling cooling water to fully perform heat exchange.

Firstly, referring to fig. 1, fig. 1 is a schematic structural diagram of a liquefier in the prior art; in the prior art, a cooling medium enters the main shell 10 through a cooling water inlet 80 at the bottom of the main shell 10 and flows out from a cooling water outlet 90 at the top of the main shell 10, an arched baffle plate 50 is arranged on the tube bundle 40 to guide the cooling medium and prolong the time of the cooling medium in the main shell 10, and the tube bundle 40 is continuously cooled; the gas material enters the tube bundle 40 through the tube pass gas inlet 60 at one side of the upper end enclosure 20, flows out from the tube pass liquid outlet 70 at the bottom of the lower end enclosure 30 after being cooled in the tube bundle 40, the non-condensable gas which is not formed into a liquid state is discharged from the non-condensable gas outlet, and the tube pass medium and the cooling medium flow in opposite directions relatively to enhance the heat exchange effect.

However, when the cooling medium is pumped from the cooling water inlet 80 into the shell pass and flows, a water flow column is formed under the guidance of the arcuate baffle 50, and the cooling medium at the included angle (position a in fig. 1) where the arcuate baffle 50 is connected with the inner wall of the main shell 10 flows slowly, so that the heat exchange effect is poor; and when the gas materials are pumped in, the gas materials quickly pass through the tube bundle 40 under the action of pressure, and the condensation time is short, so that the gas materials which are not fully cooled are discharged from the non-condensable gas outlet, and a large amount of energy is wasted.

Referring to fig. 2 and 3 together, the present invention provides a one-stage liquefier, which includes: the device comprises a main shell 10, an upper end enclosure 20 for sealing the top end of the main shell 10 and a lower end enclosure 30 for sealing the bottom end of the main shell 10; the main shell 10 is respectively connected with the upper end enclosure 20 and the lower end enclosure 30 through a flange 11, a tube pass air inlet 60 is formed in one side of the upper end enclosure 20, and materials are pumped in through the tube pass air inlet 60 after being gasified; the upper end enclosure 20 is internally and rotatably connected with an upper tube plate 21 in a sealing manner, the lower end enclosure 30 is internally and rotatably connected with a lower tube plate 31 in a sealing manner, a tube bundle 40 is fixedly connected between the upper tube plate 21 and the lower tube plate 31, and the tube bundle 40 is provided with arc-shaped baffle plates 50 at intervals along the height direction; the bottom of the lower end enclosure 30 is provided with a tube pass liquid outlet 70, and pumped gas materials enter the tube bundle 40 through the upper tube plate 21 to be cooled and then are collected from the fluidized materials in the tube pass liquid outlet 70; in the middle of the cooling process, a cooling water inlet 80 used for pumping cooling medium is formed in one side of the bottom of the main shell 10, a cooling water outlet 90 is formed in one side of the top of the main shell 10, the cooling medium continuously performs convection with the gas material in the tube pass, so that better cooling is achieved, the tube bundle 40 which continuously rotates is adopted in the embodiment of the cooling process, the gas material is subjected to floating characteristic after being subjected to shaking force by utilizing the inherent gas state after entering the tube bundle 40, the flowing time of the gas material in the tube bundle 40 is prolonged, and when the cooling medium flows through the arched baffle plate 50 in rotation, the cooling medium is fully mixed, flows and exchanges heat, the cooling effect of the cooling medium is enhanced, and the rotation of the upper tube plate 21 and the lower tube plate 31 drives the tube bundle 40 and the arched baffle plate 50.

When the upper tube plate 21 and the lower tube plate 31 are arranged to rotate in a sealing manner, the upper end enclosure 20 and the lower end enclosure 30 are both internally provided with mounting grooves 32 along the circumferential direction, and the outer rings of the upper tube plate 21 and the lower tube plate 31 are both provided with convex shoulders which are rotatably matched with the corresponding mounting grooves 32 in the circumferential direction. A plurality of balls are nested at the upper end and the lower end in each mounting groove 32 along the circumferential direction, and a ball groove matched with the balls is arranged on a convex shoulder corresponding to the mounting groove; in the above structure, it can be seen that the convex shoulders on the upper tube plate 21 and the lower tube plate 31 are respectively inserted into the mounting grooves 32, and the ball grooves are matched with the balls in the mounting grooves 32, so that the upper tube plate 21 and the lower tube plate 31 rotate more smoothly, and the sealing rotation matching is a common technical means in the prior art, which is not described in detail herein. And in order to enhance the stability of the tube bundle 40 and reduce the torsion resistance to the tube bundle 40 during rotation, the arched baffle plate 50 is provided with a plurality of through holes matched with the heat exchange tubes on the tube bundle 40 and is connected with the inner wall of the main shell 10 in a sliding way,

when the bow-shaped baffle plates 50 are specifically arranged, referring to fig. 1, annular grooves 12 are arranged on the inner wall of the main housing 10 at intervals along the height direction, and a plurality of bow-shaped baffle plates 50 are slidably assembled in the annular grooves 12 in a one-to-one correspondence manner. The arched baffle plates 50 slide in the annular groove 12, and any two arched baffle plates 50 adjacent up and down are arranged in a staggered manner, namely, notches reserved for the cooling medium to pass through of the arched baffle plates 50 are arranged in a staggered manner, and the positions of the cooling medium flowing through the notches are continuously changed in the rotating process, so that the cooling medium can circulate in the tube pass without dead angles, the heat exchange effect is enhanced, and the tube bundle 40 is cooled better. A plurality of ribs 13 surrounding the tube bundle 40 are connected between the upper tube plate 21 and the lower tube plate 31, and reinforcing plates are welded to the plurality of ribs 13. The reinforcing ribs 13 are arranged to surround the tube bundle 40 through matching with the fixing plates, so that damage to the tube bundle 40 by torsion in the rotating process is prevented, and meanwhile, the upper tube plate 21, the tube bundle 40, the lower tube plate 31 and the baffle plate are rotated at a low speed, so that torsion damage is reduced.

Referring to fig. 1 and fig. 2, the present invention further includes a driving assembly for driving the upper tube plate 21 to rotate, the driving assembly is used for transmitting the driving force from the top of the main shell 10 to the upper tube plate 21, and the upper tube plate 21 drives the tube bundle 40 and the lower tube plate 31 to rotate; when the driving assembly is arranged specifically, a through hole is formed in the center of the top of the upper end enclosure 20, and a bearing is sleeved in the through hole; the driving assembly comprises a low-speed motor 22 arranged on the upper portion of the upper end enclosure 20 in an inverted mode through a motor support, an output shaft of the low-speed motor 22 is connected with a shaft rod 23 sleeved in a bearing, and one end, far away from the output shaft of the low-speed motor 22, of the shaft rod 23 is connected with the circle center of the upper tube plate 21.

In the above structure, it can be seen that the output shaft of the low-speed motor 22 is connected with the shaft rod 23, the shaft rod 23 is sleeved on the bearing and extends to the inside of the upper head 20 to be connected with the position of the center of the upper tube plate 21, the upper tube plate 21 is driven to rotate in the mounting groove 32 in the rotation process of the low-speed motor 22, meanwhile, the upper tube plate 21 drives the tube bundle 40 and the lower tube plate 31 to rotate, and when the arc-shaped baffle plate 50 rotates, cooling water flows through the arc-shaped baffle plate 50 through gaps at different positions, so that the cooling water can be better mixed and heat exchanged, and the heat exchange of the tube bundle. Specifically, the low-speed motor 22 is a motor commonly used in existing daily production equipment, and the specific type is not limited. In addition, in order to prevent the gas material pumped into the upper end enclosure 20 from entering the tube bundle 40 too much, a pneumatic pressurizing assembly connected with the driving assembly through a gear device is arranged in the upper end enclosure 20, and the gas material is blown into the tube bundle 40, so that the gas material in the tube bundle 40 is sufficient, and cannot pass through the tube bundle 40 due to too high pressure.

With continued reference to fig. 1 and 2, a pneumatic compression assembly is provided, the pneumatic compression assembly comprising: the mounting rack 26 is arranged in the upper seal head 20, and the mounting rack 26 is higher than the upper tube plate 21; a plurality of fans 24 circumferentially distributed within the mounting frame 26; the gear device comprises a driving gear 28 arranged on each fan 24 and a main gear 27 sleeved on the shaft rod 23; wherein each driving gear 28 is connected to a corresponding fan 24 through a gearbox 25, and a main gear 27 is simultaneously meshed with a plurality of driving gears 28. When the mounting frame 26 is specifically arranged, the mounting frame 26 is fixedly mounted on the inner wall of the upper end enclosure 20, the shaft rod 23 penetrates through the mounting frame 26 to be connected with the upper tube plate 21, the main gear 27 is sleeved on the position, with the same height as the mounting frame 26, of the shaft rod 23, two or three driving gears 28, preferably three driving gears 28 are mounted on the mounting frame 26 along the circumferential direction of the mounting frame 26, the three driving gears 28 are connected through mounting rods and rotate in the mounting frame 26, the main gear 27 is simultaneously meshed with the three driving gears 28, the driving gears 28 are connected with a gearbox 25 fixed at the bottom of the mounting frame 26, and an output shaft of the gearbox 25 is connected with a fan 24, so that the fan 24 is accelerated.

In the above structure, it can be seen that, by starting the low-speed motor 22, the shaft rod 23 drives the upper tube plate 21, the tube bundle 40 and the lower tube plate 31 to rotate, and at the same time, drives the fan 24 with blowing pressurization to blow the gas material into the tube bundle 40, so that the gas material inside the tube bundle 40 is full, and at the same time, because the rotation speed of the low-speed motor 22 is low, the fan 24 is accelerated by using the gearbox 25, and because the gas material pumped into the upper head 20 has a certain pressure, the wind power of the required fan 24 does not need to be too large, and for this reason, the gearbox 25 is accelerated by using a common gear. It should be specifically noted that an anticorrosive shell is wrapped outside the gearbox 25, and the gearbox 25 with an acceleration function is a commonly used speed change device in the prior art, and will not be described in detail herein.

The utility model adopts the upper tube plate 21, the tube bundle 40, the lower tube plate 31 and the arched baffle plate 50 to rotate synchronously, so that the retention time of the gaseous material in the tube bundle 40 is prolonged, and the rotating arched baffle plate 50 ensures that the cooling medium has no dead angle and flows for heat exchange, thereby enhancing the liquefaction effect; and the pneumatic pressurizing assembly enables the gaseous materials in the tube bundle 40 to be more full, and the liquefaction effect of the gas is effectively enhanced.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A primary liquefier, comprising: the device comprises a main shell, an upper end enclosure for sealing the top end of the main shell and a lower end enclosure for sealing the bottom end of the main shell; the upper end enclosure is internally and rotatably connected with an upper tube plate in a sealing manner, and the lower end enclosure is internally and rotatably provided with a lower tube plate in a sealing manner; a tube bundle is fixedly connected between the upper tube plate and the lower tube plate, a plurality of arch-shaped baffle plates are connected to the tube bundle, the arch-shaped baffle plates are arranged at intervals in a staggered manner along the height direction of the tube bundle, and the arch-shaped baffle plates are rotatably connected to the inner wall of the main shell;

2. The primary liquefier of claim 1, wherein said upper head and said lower head are each flanged to said main housing.

3. The primary liquefier of claim 1, wherein each of the upper head and the lower head is provided with an installation groove along an annular direction thereof, and each of outer rings of the upper tube plate and the lower tube plate is provided with a shoulder which is rotatably matched with the corresponding installation groove along an annular direction.

4. The one-stage liquefier of claim 3, wherein a plurality of balls are nested in each mounting groove along the circumferential direction at the upper end and the lower end, and a ball groove matched with the plurality of balls is arranged on the corresponding shoulder.

5. The primary liquefier of claim 3, wherein a through hole is formed in a center of the top of the upper head, and a bearing is sleeved in the through hole; the driving assembly comprises a low-speed motor which is arranged on the upper portion of the upper end enclosure in an inverted mode, an output shaft of the low-speed motor is connected with a shaft rod which is sleeved in the bearing, and one end, far away from the output shaft of the low-speed motor, of the shaft rod is connected with the circle center of the upper tube plate.

6. The primary liquefier of claim 5, wherein said pneumatic pressurization assembly comprises: the mounting frame is arranged in the upper end enclosure and is higher than the upper tube plate; the fan mounting structure further comprises a plurality of fans circumferentially distributed in the mounting frame; the gear device comprises a driving gear arranged on each fan and a main gear sleeved on the shaft rod; each driving gear is connected with a corresponding fan through a gearbox, and the main gear is meshed with the plurality of driving gears simultaneously.

7. The primary liquefier of any of claims 1 to 6, wherein the inner wall of the main housing is provided with annular grooves at intervals along the height direction, and a plurality of the arcuate baffles are slidably fitted in the annular grooves in a one-to-one correspondence.

8. The primary liquefier of any of claims 1-6, wherein a plurality of ribs surrounding the tube bundle are connected between the upper tube sheet and the lower tube sheet, and a reinforcing plate is welded to the plurality of ribs.