CN205878969U - Tower air preheater goes into with high flow rate and high heat transfer ability - Google Patents
Tower air preheater goes into with high flow rate and high heat transfer ability Download PDFInfo
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- CN205878969U CN205878969U CN201620668184.3U CN201620668184U CN205878969U CN 205878969 U CN205878969 U CN 205878969U CN 201620668184 U CN201620668184 U CN 201620668184U CN 205878969 U CN205878969 U CN 205878969U
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- main body
- housing main
- heat exchanger
- twist iron
- upper cover
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Abstract
The utility model provides a tower air preheater goes into with high flow rate and high heat transfer ability, including housing main body (1) and assemble respectively in upper cover (2) and low head (3) of (1) two terminal surface of housing main body, upper cover (2) and housing main body (1) crossing terminal surface is equipped with mounting panel (6), low head (3) and housing main body (1) crossing terminal surface is equipped with down mounting panel (7), go up mounting panel (6) and fixed mounting has a plurality of heat exchange tube (8) between mounting panel (7) down, every fried dough twist iron (11) are still installed to the cavity of heat exchange tube (8). The advantage does: (1 )It is obvious with reinforcing heat transfer effect to increase the rate of flow of fluid: (2 )Avoid production carbonyl compound, reduced device wax deposition probability, reduced the number of times that boils wax on line, improved the device productivity to promote production efficiency, reduced consumption. (3 )This equips simple structure, and the practicality is stronger.
Description
Technical field
This utility model belongs to preheating technology field, is specifically related to a kind of inlet tower gas with high flow rate and high exchange capability of heat
Preheater.
Background technology
At present, in methanol synthesizing process, inlet tower gas preheater is installed on the front end of methyl alcohol synthetic reactor, and synthesis gas is through entering tower
After air preheater pre-heating temperature elevation, it is flowed in methyl alcohol synthetic reactor and carries out chemical reaction and prepare methanol gas.
In prior art, the heat exchanger tube interior-heat velocity of medium of inlet tower gas preheater is relatively low, easily produces carbonyl compound, adds
Acute heat exchanger tube inwall wax deposition；Often carry catalyst dust owing to entering into the thermal medium of heat exchanger tube again, therefore, easily make heat exchanger tube
Inwall forms dirt, thus causes the heat exchange efficiency of inlet tower gas preheater significantly to decline, and is unfavorable for follow-up methanol synthesizing process.
Utility model content
The defect existed for prior art, this utility model provide a kind of there is high flow rate and high exchange capability of heat enter tower
Air preheater, can effectively solve the problems referred to above.
The technical solution adopted in the utility model is as follows:
This utility model provides a kind of inlet tower gas preheater with high flow rate and high exchange capability of heat, including housing main body
(1) upper cover (2) and the low head (3) of described (1) two end face of housing main body and respectively it are assemblied in；Described housing main body
(1) bottom is communicated with shell side import (4), and the top of described housing main body (1) is communicated with shell-side outlet (5)；Described upper cover
(2) and described housing main body (1) intersect end face be equipped with upper mounting plate (6)；Described low head (3) and described housing main body
(1) end face intersected is equipped with lower installation board (7)；Fixedly mount between described upper mounting plate (6) and described lower installation board (7)
There are several heat exchanger tubes (8)；It addition, described upper cover (2) offers the tube side import (9) connected with upper cover cavity, described
Low head (3) offers tube side outlet (10) connected with low head cavity；
It addition, the cavity of each described heat exchanger tube (8) is also equipped with twist iron (11).
Preferably, the two ends of described twist iron (11) extend to the outside of described heat exchanger tube (8), and are positioned at the end socket of correspondence
In cavity.
Preferably, described heat exchanger tube uses external diameter 19 millimeters, the heat exchanger tube of the thickness of pipe 2 millimeters；
Described twist iron (11) is a size of: reach 360 during 112mm0Circumference, its a diameter of 14 millimeters, the thickness of twist iron
For 1mm, the length of twist iron stretches out each 15mm in heat exchanger tube two ends.
Preferably, the lower section in the top of described upper cover (2) and described low head (3) is installed with upper fiber crops respectively
Flower ferropexy plate and lower twist iron fixed plate；
Described upper twist iron fixed plate and described lower twist iron fixed plate are evenly distributed with several installing holes；Twist iron
End face is through corresponding installing hole, and described installing hole spot welding is fixed.
The inlet tower gas preheater with high flow rate and high exchange capability of heat that this utility model provides has the advantage that
(1) increase rate of flow of fluid and enhancing heat transfer effect be obvious:
(2) avoid generation carbonyl compound, decrease device wax deposition probability, decrease the number of times boiling wax online, improve
Device capbility, and improving production efficiency, reduce consumption.
(3) this equipment configuration is simple, and practicality is stronger.
Accompanying drawing explanation
Inlet tower gas preheater that Fig. 1 provides for this utility model and the annexation schematic diagram of methyl alcohol synthetic reactor；
The structural profile schematic diagram of the inlet tower gas preheater that Fig. 2 provides for this utility model；
Assembly relation schematic diagram between twist iron and heat exchanger tube that Fig. 3 provides for this utility model；
The structural representation of the twist iron that Fig. 4 provides for this utility model.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer, below
In conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
In conjunction with Fig. 2, the inlet tower gas preheater with high flow rate and high exchange capability of heat that this utility model provides, including shell
Main body 1 and be assemblied in upper cover 2 and the low head 3 of 1 two end faces of housing main body respectively；The bottom of housing main body 1 is communicated with
Shell side import 4, the top of housing main body 1 is communicated with shell-side outlet 5；The end face that upper cover 2 and housing main body 1 intersect is equipped with
Installing plate 6；The end face that low head 3 and housing main body 1 intersect is equipped with lower installation board 7；Upper mounting plate 6 and lower installation board 7 it
Between be installed with several heat exchanger tubes 8；It addition, upper cover 2 offers the tube side import 9 connected with upper cover cavity, lower envelope
3 offer the tube side outlet 10 connected with low head cavity；It addition, the cavity of each heat exchanger tube 8 is also equipped with twist iron 11.
The two ends of twist iron 11 extend to the outside of heat exchanger tube 8, and are positioned in the end socket cavity of correspondence.
Heat exchanger is because, when the diameter design of heat exchanger tube is excessive during design, in the case of flow is certain, causing heat exchanger tube
Interior velocity of medium is too low, makes heat exchanger heat transfer effect low, uses the method increasing twist iron in heat exchanger tube, can be at flow one
Improve velocity of medium in the case of Ding, promote the heat exchange efficiency of heat exchanger；Furthermore it is also possible to allow fluid fully connect with heat exchanger tube
Touch, it is to avoid in heat exchanger, form dead band, it is ensured that fluid flows to each place of heat exchanger tube.
The size technologies parameter request of twist iron is relatively stricter, directly affects the heat transfer effect of heat exchanger, and affects fiber crops
The use cycle of Hua Tie or life-span.The dimensional requirement of twist iron is mainly: ensure that the heat exchange area of heat exchanger is unaffected, fully
Consider the surplus of heat exchanger, it is considered to the lifting situation of the heat exchange efficiency of heat exchanger and be designed the circumference requirement of Flos Cannabis.According to
Installation etc. is facilitated to require the diameter of design twist iron.Its thickness is designed according to the chemical characteristic of medium.For convenience install and
Fix and determine the length of twist iron, fixing hole diameter and the diameter of fixture.
Concrete, the diameter of twist iron is generally less 0.8-1.0mm than heat exchanger tube diameter, and operation pressure is when 5.0-5.5MPa
The thickness of twist iron is generally 0.8-1.5mm, and the diameter of twist iron two ends fixing hole is usually 3-5, the diameter ratio of its fixture
Little about the 0.2mm of diameter of fixing hole, firmly installs and inertia, with the suitable spot welding of spot welding at installing hole and fixture.
As a kind of optimal way, when heat exchanger tube uses the heat exchanger tube of external diameter 19 millimeters, the thickness of pipe 2 millimeters, twist iron 11
A size of: during 112mm, reach 3600Circumference, its a diameter of 14 millimeters, the thickness of twist iron is 1mm, and the length of twist iron is stretched out
The each 15mm in heat exchanger tube two ends.
Twist iron can be assembled by twist iron fixed plate, as shown in Figure 4, for twist iron fixed plate structure schematic diagram, its tool
Body assembling structure is: above upper cover 2 and the lower section of low head 3 be installed with respectively twist iron fixed plate and under
Twist iron fixed plate；Upper twist iron fixed plate and lower twist iron fixed plate are evenly distributed with several installing holes；The end of twist iron
Face is through corresponding installing hole, and installing hole spot welding is fixed.Using this kind of mounting means, have that twist iron easily assembles is excellent
Point.
With reference to Fig. 1, introduce inlet tower gas preheater and the use in conjunction scene of methyl alcohol synthetic reactor that this utility model provides:
Inlet tower gas preheater mainly has 4 mouths of pipe, respectively N1, N2, N3 and N4 mouth of pipe, N1 for going out tower synthesis gas entrance,
N2 is for going out tower syngas outlet, and N3 is for entering tower synthesis gas entrance, and N4 is for entering tower syngas outlet.Concrete technology flow process is: system
First the synthesis gas come enters the shell side into tower preheater from N3, out enters methyl alcohol synthetic reactor from N4 mouth, at methanol after heat absorption
Synthetic tower is internal there is chemical reaction, prepares methanol gas, and owing to chemical reaction herein is exothermic reaction, therefore, methanol closes
The synthesis gas temperature that the Cheng Tacong N6 mouth of pipe is discharged rises, the tube side of the inlet tower gas preheater that backflows, and closes with entering tower as thermal medium
Become gas to carry out heat exchange, improve methyl alcohol synthetic reactor entrance synthesis gas temperature.Wherein, the synthesis gas that methyl alcohol synthetic reactor is discharged,
When being flowed into the tube side of inlet tower gas preheater, twist iron is installed in heat exchanger tube, and by two ends about the 2.6-2.8 of twist iron
Stainless steel bar spot welding is fixed, and in the case of flow is certain, owing to installing twist iron, causes the internal heat exchange tubes useful space to become
Little, improve this strand of synthesis gas flow velocity in heat exchanger tube, strengthen the heat exchange efficiency into tower preheater, two strands of gases can be reached and fill
Divide heat exchange, make N4 mouth synthesis gas temperature out improve as far as possible, prevent from producing carbonyl compound at heat exchanger tube inner chamber, keep away
Exempt from heat exchanger tube inner chamber wax deposition.
Being computed, the inlet tower gas preheater with high flow rate and high exchange capability of heat that this utility model provides, at heat exchanger tube
After interior installation twist iron, the flow velocity of fluid is greatly improved.Enter tower tower air preheater and use disc-annular shape baffling stream plate, and this heat exchange
Device does not has manhole, needs cutting equipment end socket to install when mounted, the design of twist iron, manufactures and fixes and refer to accompanying drawing.
Equipment to carry out after twist iron installation flaw detection etc. process.
The inlet tower gas preheater with high flow rate and high exchange capability of heat that this utility model provides, has the advantage that
(1) increase rate of flow of fluid and enhancing heat transfer effect be obvious:
After twist iron being installed in heat exchanger tube, the flow velocity of the fluid that can be greatly improved, it is to avoid fluid is at heat exchanger tube internal memory
Being detained in dead band, make the abundant heat exchange of fluid, improve the heat exchange efficiency of heat exchanger, improve operating characteristics, inlet tower gas preheater goes out tower
Syngas outlet (N4) temperature can improve about 8 DEG C, and the temperature of raising to be adjusted according to actual load, and different load improves
Temperature different.
(2) avoid generation carbonyl compound, decrease device wax deposition probability, decrease the number of times boiling wax online, improve
Device capbility, and improving production efficiency, reduce consumption.
(3) this equipment configuration is simple, and practicality is stronger.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should regard protection domain of the present utility model.
Claims (4)
1. an inlet tower gas preheater with high flow rate and high exchange capability of heat, it is characterised in that include housing main body (1) and
It is assemblied in upper cover (2) and the low head (3) of described (1) two end face of housing main body respectively；The bottom of described housing main body (1)
Being communicated with shell side import (4), the top of described housing main body (1) is communicated with shell-side outlet (5)；Described upper cover (2) and described
The end face that housing main body (1) intersects is equipped with upper mounting plate (6)；The end that described low head (3) and described housing main body (1) intersect
Face is equipped with lower installation board (7)；Between described upper mounting plate (6) and described lower installation board (7), it is installed with several change
Heat pipe (8)；It addition, described upper cover (2) offers the tube side import (9) connected with upper cover cavity, described low head (3) is opened
It is provided with tube side outlet (10) connected with low head cavity；
It addition, the cavity of each described heat exchanger tube (8) is also equipped with twist iron (11).
The inlet tower gas preheater with high flow rate and high exchange capability of heat the most according to claim 1, it is characterised in that described
The two ends of twist iron (11) extend to the outside of described heat exchanger tube (8), and are positioned in the end socket cavity of correspondence.
The inlet tower gas preheater with high flow rate and high exchange capability of heat the most according to claim 1, it is characterised in that described
Heat exchanger tube uses external diameter 19 millimeters, the heat exchanger tube of the thickness of pipe 2 millimeters；
Described twist iron (11) is a size of: reaching 360 ° of circumference during 112mm, its a diameter of 14 millimeters, the thickness of twist iron is
1mm, the length of twist iron stretches out each 15mm in heat exchanger tube two ends.
The inlet tower gas preheater with high flow rate and high exchange capability of heat the most according to claim 1, it is characterised in that in institute
The lower section of the top and described low head (3) of stating upper cover (2) is installed with twist iron fixed plate and lower Flos Cannabis respectively
Ferropexy plate；
Described upper twist iron fixed plate and described lower twist iron fixed plate are evenly distributed with several installing holes；The end face of twist iron
Through corresponding installing hole, and described installing hole spot welding is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620668184.3U CN205878969U (en) | 2016-06-28 | 2016-06-28 | Tower air preheater goes into with high flow rate and high heat transfer ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620668184.3U CN205878969U (en) | 2016-06-28 | 2016-06-28 | Tower air preheater goes into with high flow rate and high heat transfer ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878969U true CN205878969U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620668184.3U Active CN205878969U (en) | 2016-06-28 | 2016-06-28 | Tower air preheater goes into with high flow rate and high heat transfer ability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778410A (en) * | 2020-07-07 | 2020-10-16 | 西安银研镁业装备有限公司 | Clean vacuum pyrometallurgical zinc smelting device and zinc smelting method |
-
2016
- 2016-06-28 CN CN201620668184.3U patent/CN205878969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778410A (en) * | 2020-07-07 | 2020-10-16 | 西安银研镁业装备有限公司 | Clean vacuum pyrometallurgical zinc smelting device and zinc smelting method |
| CN111778410B (en) * | 2020-07-07 | 2024-06-21 | 西安银研镁业装备有限公司 | Clean purification vacuum pyrogenic zinc smelting device and zinc smelting method |
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