CN219722420U

CN219722420U - Anti-blocking silicon carbide falling film absorber

Info

Publication number: CN219722420U
Application number: CN202321258716.2U
Authority: CN
Inventors: 马新龙; 奚若明
Original assignee: Jiangsu Huangcan New Material Technology Co ltd
Current assignee: Jiangsu Huangcan New Material Technology Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-09-22
Anticipated expiration: 2033-05-23

Abstract

The utility model relates to the technical field of falling film absorbers and discloses an anti-blocking silicon carbide falling film absorber which comprises a tank body, wherein a feeding box and a gas-liquid separation box are respectively arranged at two ends of the tank body, an inlet tube plate and an outlet tube plate are respectively fixed at two ends of the tank body, a plurality of heat exchange tubes are jointly fixed on the inlet tube plate and the outlet tube plate, a drainage structure is arranged at one end of each heat exchange tube extending into the feeding box, a liquid inlet is arranged on the feeding box, and a filter is communicated with the liquid inlet.

Description

Anti-blocking silicon carbide falling film absorber

Technical Field

The utility model relates to the technical field of falling film absorbers, in particular to an anti-blocking silicon carbide falling film absorber.

Background

The falling film absorber is a falling film type gas absorbing device, absorbing liquid descends along the wall to form a film under the action of gravity and is in countercurrent or parallel-flow contact with gas, the gas is absorbed by the absorbing liquid, and heat released in the absorption process is taken out of the device through coolant outside a pipe. The air film and the liquid film are mutually non-penetrated, the pressure drop of the equipment is small, and higher gas load is allowed; the heat and mass transfer efficiency is high, and the total fluid transfer amount generated by unit energy consumption is large. Is widely applied to the chemical industry field.

At present, the silicon carbide falling film absorber on the market is characterized in that the groove is formed in the top of the overflow block, so that when absorption liquid enters the pipe box, the groove is filled firstly, the through groove between the heat exchange pipes is filled after the absorption liquid escapes from the groove, and finally the absorption liquid can be uniformly distributed around all the heat exchange pipes when the liquid level is higher than the pipe orifice of the heat exchange pipes, so that the absorption efficiency is improved, but when the absorption liquid flow is large, the liquid level rapidly rises and drops through the heat exchange pipes, a liquid sealing film is easily formed at the pipe orifice, and the pipe orifice is possibly blocked by particles in the absorption liquid, so that the absorption efficiency of equipment is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the anti-blocking silicon carbide falling film absorber which has a drainage effect on liquids with different flow rates and can filter impurities in absorption liquid.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a prevent carborundum falling film absorber of jam, includes the jar body, feeding case and gas-liquid separation case are installed respectively at the both ends of jar body, the both ends of jar body are fixed with import tube sheet and export tube sheet respectively, be fixed with a plurality of heat exchange tubes jointly on import tube sheet and the export tube sheet, the one end that the heat exchange tube extends into the feeding incasement is provided with drainage structure, be provided with the inlet on the feeding case, the intercommunication has the filter on the inlet.

The utility model is further provided with: the feeding box comprises a box wall, the liquid inlet is formed in the box wall, the filter is an annular pipe, the maximum diameter of the filter is slightly smaller than the diameter of the inner wall of the corresponding part of the box wall and the filter, one side of the filter, facing the box wall, of the filter is provided with an annular plate surface, and a plurality of filtering holes are uniformly formed in the annular plate surface of the filter.

The utility model is further provided with: a plurality of fixing blocks are symmetrically fixed on the wall of the box, and the filter is jointly fixed by the fixing blocks.

The utility model is further provided with: the drainage structure comprises a horn mouth, the horn mouth is arranged on an opening of one end of the heat exchange tube extending into the feeding box, a plurality of liquid discharge grooves II are symmetrically formed in one end, deviating from the heat exchange tube, of the horn mouth, a plurality of liquid discharge grooves I are symmetrically formed in the heat exchange tube, the liquid discharge grooves I are arranged between the inlet tube plate and the horn mouth, and a liquid storage height L is arranged between the liquid discharge grooves I and the inlet tube plate.

The utility model is further provided with: the heat exchange tube is symmetrically connected with a plurality of drainage rods on the inner wall of one end in the feeding box, the drainage rods and the liquid draining grooves are arranged at intervals, and one end of each drainage rod extends out of the heat exchange tube.

The utility model is further provided with: the internal baffle that is fixed with of jar body is provided with the expansion ring on the jar body, all install the sealing washer between feeding case and gas-liquid separation case and the jar body.

The utility model has the advantages that:

1. the liquid inlet is provided with the annular filter, one side of the filter facing the tank wall is provided with the filter surface, the filter surface is provided with the annular plate surface, a gap is reserved between the filter surface and the tank wall, the absorption liquid directly enters the filter after passing through the liquid inlet, impurities in the absorption liquid are filtered through the filter, the filtered absorption liquid passes through the filter holes and slides along the tank wall, splashing of the liquid and blocking of the pipe orifice by the impurities in the absorption liquid are avoided, the subsequent absorption liquid can uniformly enter the heat exchange pipe, and the absorption efficiency is improved;

2. the drainage structure comprises a first drainage groove and a second drainage groove, wherein a liquid storage height L is reserved between the first drainage groove and the inlet tube plate, the absorption liquid is temporarily stored in the feeding box until the liquid level exceeds the liquid storage height L, then the absorption liquid synchronously enters all the heat exchange tubes through the first drainage groove, when the liquid inlet flow rate of the absorption liquid is large, the storage liquid rapidly rises and flows over the first drainage groove, after the liquid level of the storage liquid reaches the second drainage groove, the liquid enters all the heat exchange tubes through the second drainage groove synchronously, the second drainage groove is arranged on the bell mouth, the liquid inlet flow rate is larger, a liquid sealing film is prevented from being formed when the liquid level in the feeding box rises too fast, the heat exchange tubes and the liquid drainage grooves are blocked, and the absorption efficiency is ensured;

3. a plurality of drainage rods are symmetrically arranged on the inner wall of the heat exchange tube, one ends of the drainage rods extend out of the heat exchange tube, the other ends of the drainage rods extend into the heat exchange tube, and when the stored liquid in the feeding box of an accident situation is beyond the horn mouth, the drainage rods can also guide the absorption liquid in the feeding box to enter the heat exchange tube, so that the heat exchange tube is prevented from being blocked, and the absorption efficiency is ensured.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of portion B shown in FIG. 2;

FIG. 4 is a schematic view of a drainage structure according to the present utility model;

FIG. 5 is an enlarged view of portion C of FIG. 2;

FIG. 6 is a schematic view of a filter structure of the present utility model;

in the figure: 1. a tank body; 2. a feed box; 201. a wall of the box; 202. a liquid inlet; 3. a gas-liquid separation tank; 4. a heat exchange tube; 401. a first liquid discharge groove; 402. a horn mouth; 403. a liquid discharge groove II; 5. a baffle plate; 6. an expansion loop; 7. a seal ring; 8. an inlet tube sheet; 9. a fixed block; 10. a filter; 1001. a filter hole; 11. a drainage rod; 12. an outlet tube sheet.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions:

the anti-blocking silicon carbide falling film absorber comprises a tank body 1, wherein a feeding box 2 and a gas-liquid separation box 3 are respectively arranged at two ends of the tank body 1, sealing rings 7 are respectively arranged between the feeding box 2 and the gas-liquid separation box 3 and the tank body 1, an expansion ring 6 is arranged on the tank body 1, a plurality of baffle plates 5 are fixed in the tank body, an inlet tube plate 8 and an outlet tube plate 12 are respectively fixed at two ends of the tank body 1, the inlet tube plate 8 is arranged at one side of the feeding box 2, a plurality of heat exchange tubes 4 are jointly fixed on the inlet tube plate 8 and the outlet tube plate 12, a drainage structure is arranged at one end of each heat exchange tube 4 in the feeding box 2, a liquid inlet 202 is arranged on the feeding box 2, a filter 10 is communicated with the liquid inlet 202, and the filter 10 is arranged in the feeding box 2;

the absorption liquid enters the filter 10 from the liquid inlet 202, the impurity particles are filtered by the filter 10 and then flow into the feeding box 2, the absorption liquid enters the heat exchange tube 4 to react with the gas to be absorbed, the heat generated by the absorption reaction is transferred to the cooling liquid in the tank body 1 through the heat exchange tube 4, and the liquid after the absorption reaction is discharged out of the falling film absorber through the gas-liquid separation box 3.

The feeding box 2 comprises a box wall 201, a liquid inlet 202 is formed in the box wall 201, a filter 10 is an annular pipe, one side of the filter 10 facing the box wall 201 is provided with an annular plate surface, a plurality of filter holes 1001 are uniformly formed in the annular plate surface of the filter 10, the annular plate surface of the filter 10 is a filter surface, and the diameter of the filter surface is slightly smaller than the diameter of the inner wall of the corresponding part of the box wall 201 and the filter 10, namely a certain gap is reserved between the filter surface and the box wall 201; after the absorption liquid enters the filter 10 through the liquid inlet 202, the absorption liquid circulates along the annular pipe and is filtered through the filtering surface, the absorption liquid can be attached to the tank wall 201 after passing through the filtering holes 1001 and slide on the inlet tube plate 8 along the tank wall 201, so that splashing is avoided when the absorption liquid enters the feeding tank 2, the follow-up absorption liquid can uniformly slide along the wall of the heat exchange pipe 4, and the absorption efficiency is guaranteed.

A plurality of fixing blocks 9 are symmetrically fixed on the tank wall 210, and the filter 10 is commonly fixed by the fixing blocks 9.

The drainage structure comprises a first drainage groove 401, a horn mouth 402, a second drainage groove 403 and a drainage rod 11;

the first liquid discharge groove 401 is formed in one end of the heat exchange tube 4 extending into the feeding box 2, a plurality of liquid discharge grooves 401 are symmetrically arranged, a liquid storage height L is arranged between the first liquid discharge groove 401 and the inlet tube plate 8, the absorption liquid falling on the inlet tube plate 8 is temporarily stored in the feeding box 2, after the liquid level exceeds the liquid storage height L, the absorption liquid synchronously enters all the heat exchange tubes 4 through the first liquid discharge groove 401, the uniform distribution of the absorption liquid in all the heat exchange tubes 4 is ensured through the preset liquid storage height L, and the absorption efficiency is improved;

the opening of the heat exchange tube 4 in the feeding box 2 is set as a horn mouth 402, the horn end of the horn mouth 402 is symmetrically provided with a plurality of liquid discharge grooves II 403, when the flow rate of the absorption liquid passing through the liquid inlet 202 is large, the liquid level in the feeding box 2 rapidly rises and exceeds the first liquid discharge groove 401, so that a liquid sealing film is easily formed at the first liquid discharge groove 401, the absorption liquid is prevented from entering the heat exchange tube 4, the liquid level of the absorption liquid continuously rises until reaching the second liquid discharge groove 403, the absorption liquid enters the heat exchange tube 4 through the second liquid discharge groove 403, the liquid flow area at the horn mouth 402 is larger, the absorption liquid is easier to pass through the second liquid discharge groove 403, the situation of blocking the first liquid discharge groove 401 when the flow rate of the absorption liquid is large is avoided, and the absorption efficiency is ensured;

the drainage rod 11 is symmetrically fixed on the inner wall of the heat exchange tube 4, one end of the drainage rod 11 extends into the heat exchange tube 4, the other end of the drainage rod extends out of the horn mouth 402 and extends into the feeding box 2, the drainage rod 11 and the liquid discharge groove I401 are arranged at intervals, when the unexpected situation happens to cause the liquid storage height in the feeding box 2 to exceed the horn mouth 402, the drainage rod 11 plays a role in drainage of absorption liquid, absorption liquid is guaranteed to pass through the liquid sealing film, blockage of the heat exchange tube 4 is prevented, absorption reaction is guaranteed, and absorption efficiency is improved.

Specifically, the absorption liquid directly enters the filter 10 after passing through the liquid inlet 202, impurities in the absorption liquid are filtered by the filter 10, the filtered absorption liquid passes through the filter holes 1001 and slides along the tank wall 201, splashing of the liquid and blockage of the pipe orifice of the heat exchange pipe 4 by the impurities in the absorption liquid are avoided, subsequent absorption liquid is convenient to uniformly enter the heat exchange pipe 4, and absorption efficiency is improved.

The drainage structure comprises a first drainage groove 401, a second drainage groove 403 and a drainage rod 11, wherein a liquid storage height L is reserved between the first drainage groove 401 and the inlet tube plate 8, and after the liquid level of the absorption liquid is temporarily stored in the feeding box 2 and exceeds the liquid storage height L, the absorption liquid synchronously enters all the heat exchange tubes 4 through the first drainage groove 401, so that the uniform distribution of the absorption liquid is ensured;

when the liquid inlet flow rate of the absorption liquid is large, the stored liquid rapidly rises and overflows the first liquid discharge groove 401, after the liquid level of the stored liquid reaches the second liquid discharge groove 403, all the heat exchange tubes 4 synchronously enter through the second liquid discharge groove 403, the second liquid discharge groove 403 is arranged on the horn mouth 402, the liquid inlet flow rate is large, the liquid sealing film is prevented from being formed when the liquid level in the feeding box 2 rises too fast, and the heat exchange tubes 4 and the liquid discharge groove are blocked;

one end of the drainage rod 11 extends out of the horn mouth 402, the other end extends into the heat exchange tube 4, and when the stored liquid in the feeding box 2 passes through the horn mouth 402 under the unexpected condition, the drainage rod 11 can also guide the absorption liquid in the feeding box 2 to enter the heat exchange tube 4 through the liquid sealing film, so that the heat exchange tube 4 is prevented from being blocked;

under the condition that the flow of the absorption liquid through the liquid inlet 202 is different, the absorption liquid can uniformly enter the heat exchange tube 4, the absorption efficiency of the falling film absorber is improved, and meanwhile, the orifice of the heat exchange tube 4 and the liquid discharge groove are prevented from being blocked by the liquid sealing film through the multi-stage drainage structure, so that the circulation of the absorption liquid is ensured, and the absorption efficiency is ensured.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a carborundum falling film absorber of jam-proof, includes a jar body (1), feeding case (2) and gas-liquid separation case (3), its characterized in that are installed respectively at the both ends of jar body (1): the utility model discloses a filter, including jar body (1), inlet tube sheet (8) and export tube sheet (12) are fixed with respectively at the both ends of jar body (1), be fixed with a plurality of heat exchange tubes (4) jointly on inlet tube sheet (8) and the export tube sheet (12), the one end that heat exchange tube (4) extend into in feeding case (2) is provided with drainage structure, be provided with inlet (202) on feeding case (2), the intercommunication has filter (10) on inlet (202).

2. An anti-fouling silicon carbide falling film absorber according to claim 1, wherein: feeding case (2) are including case wall (201), inlet (202) are seted up on case wall (201), filter (10) are the annular pipe, the maximum diameter of filter (10) is slightly less than the inner wall diameter of case wall (201) and filter (10) department of corresponding, one side of filter (10) orientation case wall (201) sets up to annular face, evenly offered a plurality of filtration pore (1001) on the annular face of filter (10).

3. An anti-fouling silicon carbide falling film absorber according to claim 2, wherein: a plurality of fixing blocks (9) are symmetrically fixed on the box wall (201), and a filter (10) is jointly fixed by the fixing blocks (9).

4. A jam-resistant silicon carbide falling film absorber as set forth in claim 3 wherein: the drainage structure comprises a horn mouth (402), the horn mouth (402) is arranged on an opening formed in one end of a heat exchange tube (4) extending into a feeding box (2), a plurality of liquid discharge grooves (403) are symmetrically formed in one end, deviating from the heat exchange tube (4), of the horn mouth (402), a plurality of liquid discharge grooves (401) are symmetrically formed in the heat exchange tube (4), the liquid discharge grooves (401) are arranged between an inlet tube plate (8) and the horn mouth (402), and a liquid storage height L is arranged between the liquid discharge grooves (401) and the inlet tube plate (8).

5. An anti-fouling silicon carbide falling film absorber according to claim 4, wherein: the heat exchange tube (4) is symmetrically connected with a plurality of drainage rods (11) on the inner wall of one end in the feeding box (2), the drainage rods (11) and the liquid discharge groove I (401) are arranged at intervals, and one end of each drainage rod (11) extends out of the heat exchange tube (4).

6. An anti-fouling silicon carbide falling film absorber according to claim 5, wherein: the novel feeding tank is characterized in that a plurality of baffle plates (5) are fixed in the tank body (1), an expansion ring (6) is arranged on the tank body (1), and sealing rings (7) are arranged between the feeding tank (2) and the tank body (1) and between the gas-liquid separation tank (3).