CN2372031Y - Regular packing analytical tower - Google Patents
Regular packing analytical tower Download PDFInfo
- Publication number
- CN2372031Y CN2372031Y CN 97227643 CN97227643U CN2372031Y CN 2372031 Y CN2372031 Y CN 2372031Y CN 97227643 CN97227643 CN 97227643 CN 97227643 U CN97227643 U CN 97227643U CN 2372031 Y CN2372031 Y CN 2372031Y
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- Prior art keywords
- tower
- tubulation
- analytic
- distributor
- structured packing
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Abstract
The utility model discloses a regular packing analytical tower. A tube array heat exchanger is arranged on the upper part in a tower body, a first packing layer is arranged under the tube array heat exchanger in the tower body, a trough type distributor is arranged under the first packing layer, and a second packing layer is arranged under the trough type distributor. Compared with existing analysis towers, the analysis tower provided by the utility model has the advantages of strong analytic capacity, high heat efficiency, low energy consumption, and low energy consumption.
Description
The utility model relates to a kind of metal tower, and especially a kind of Analytic Tower that passes through to resolve the useless ammoniacal liquor of absorption recycling in urea production process with ammoniacal liquor belongs to the chemical industry equipment field.
At present, each chemical fertilizer factory that produces urea generally adopts float valve Analytic Tower (as shown in Figure 1) in the recycling to useless ammoniacal liquor, the liquid that is recovered parsing is divided into two-way and advances tower, one road liquid directly enters cat head by the import 6 on the still top 1 of tower 3 without heating, flow at the bottom of the tower 7 downwards by each layer valve plate 10, another road liquid will be after the tower external heat exchanger heating, enter in the tower by import 5,7 inside are provided with distribution of steam pipe 13 at the bottom of the tower, liquid heating at the bottom of making heating steam that the outside adds with still by it produces steam and rises, the dirty liquid counter current contacting heat exchange in the rectifying section 12 that column plate 10 is formed in steam that rises and still top is resolved, the outlet 9 of resolved waste liquid at the bottom of by tower discharged, and the gas that parses goes out tower by gas outlet 2 and is recovered and is processed into urea through still top demister 11.4-1,4-2 and 4-3 are point for measuring temperature among Fig. 1, and 8-1 and 8-2 are interface of the level gauge.Because valve tower mass transfer ability is low, float valve very easily weares and teares and comes off in process of production, further reduces the analytic ability of tower, when serious, and the parking maintenance of having to.In addition, an existing Analytic Tower part is advanced tower liquid and is wanted the heating of elder generation through tower external heat exchanger, will be provided with heat exchanger on the next door of Analytic Tower, connects many turnover pipelines, makes the loosely organized of equipment, simultaneously, increases because of scattering and disappearing of heat makes energy consumption.
The purpose of this utility model is to improve the deficiencies in the prior art, provides that a kind of analytic ability is strong, the thermal efficiency is high, energy consumption is low, the Analytic Tower of compact conformation.
For achieving the above object, the utility model is taked following design:
This Analytic Tower includes at the bottom of tower body, cat head and the tower, and it is tightly connected and is integral, and the mouth of pipe of giving vent to anger on cat head, tower body are provided with point for measuring temperature and heat exchange material inlet, interface of the level gauge is arranged at the bottom of the tower and resolve after waste liquid outlet, be provided with steam distributor at the bottom of the tower; Load filler in tower, be provided with a groove type distributor in the middle of described filler, described groove type distributor is firm on inner wall of tower with screw.
The top of described distributor is first packing layer, is made up of the wavy metal filler, constitutes rectifying section; Being second packing layer below described distributor, is 304 materials, 305Y structured packing.
Be provided with a tubulation heat-exchanger rig above described first packing layer in tower.Described tubulation heat-exchanger rig includes lower perforated plate and tubulation, the two ends of described tubulation set firmly the described lower perforated plate of going up respectively, the last lower perforated plate and the tower body sealing that have tubulation are fixed, on the tower body wall between the last lower perforated plate, be provided with two holes up and down, take in the hole, described groove type distributor is bored a hole on the wall of tower body and is established pipe, is tightly connected in last adapter with described tubulation heat-exchanger rig.Described tube sheet connects with tower body by flange seal and forms an integral body.
The structured packing Analytic Tower that the utility model provides is compared with existing valve tower, and its advantage is:
1, adopt structured packing to replace float valve, the resistance of 350Y structured packing is low, specific area is big, every meter highly suitable 4 blocks of theoretical trays, the suitable 5 blocks of theoretical trays of every meter packed height of wavy metal filler as rectifying section, like this, under the constant situation of tower diameter, the packed height of filling is equivalent to 30 blocks of column plates.Structured packing mass-transfer efficiency height, after this tower changes structured packing into, ability that can suitable two towers.
2, adopt groove type distributor, liquid distribution is even, and circulation is big, and resistance is little, adopts screw to be fastened on Ta Bishang, plays the effect of firm structured packing again.
3, adopt the wavy metal filler further the ammonium fluid of remnants to be resolved at rectifying section, simultaneously, after the condensation of heat exchanger under, can reduce the moisture that gas is taken away.
4, cat head adds heat exchanger, reduces the moisture of carrying secretly in the condensed gas, can guarantee that gas enters temperature and the higher ammonia and the concentration of carbon dioxide of production system.
5, gas heat exchanger is placed on the tower, and cooling medium is ammonium fluid and the ammonia water mixture before the tower into, and it reasonably reclaims heat to steam that rectifying section rises, and compares with former tower, resolves liquid per ton and economizes 0.1 ton with vapour.Because cooling medium without recirculated water, is stopped fouling of heat exchangers, makes the heat exchange effect remain at optimum state.Because the heat transferring medium and the material in the tower of heat-exchanger rig are similar basically, if there are some leakages neither be very serious on the heat-exchanger rig, in addition, the Analytic Tower of this structure can save tower external heat exchanger of the prior art, like this, not only save relevant accessory, also saved a separation equipment.
Use this Analytic Tower, make the former ammonia of designing tower gas and carbon dioxide volumetric concentration greater than 60%, now bring up to more than 70%, formerly design ammonia content in the tower waste liquid less than 0.07%, and use this tower now, go out ammonia content in the tower waste liquid at 0.01-0.02%, analytic ability is 3 times of former Analytic Tower.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of existing Analytic Tower
Fig. 2 is the structural representation of Analytic Tower of the present utility model
Embodiment:
As shown in Figure 2, Analytic Tower of the present utility model includes at the bottom of tower body 3, cat head 1 and the tower 7, it is tightly connected and is integral, the mouth of pipe 2 of on cat head 1, giving vent to anger, tower body 3 is provided with point for measuring temperature 4-1,4-2 and heat exchange material inlet 5, interface of the level gauge 8-1,8-2 and waste liquid outlet 9 are arranged on 7 at the bottom of the tower, be provided with steam distributor 13 in 7 at the bottom of the tower; A tubulation heat-exchanger rig 16 is established on top in tower body 3, be provided with first packing layer 17 below the described tubulation heat-exchanger rig 16 in tower body 3 and constitute rectifying section, below first packing layer 17, be provided with a groove type distributor 18, it is firm on inner wall of tower with screw, below groove type distributor 18, be provided with second packing layer 19, by this distributor 18 all right firm second packing layers 19; Tubulation heat-exchanger rig 16 includes lower perforated plate and tubulation 16-1, and the two ends of tubulation 16-1 are installed in respectively on the lower perforated plate, and the last lower perforated plate that has tubulation is connected with tower body by flange seal with tower body forms an integral body; On the tower body wall between the last lower perforated plate, be provided with charging hole 15 and top discharge hole 14 down, take in the hole.Groove type distributor 18 is bored a hole on the wall of tower body 3 and 6 is established pipe, is tightly connected with the adapter in top discharge hole 14 on the tubulation heat-exchanger rig 16.
Filler in first packing layer 17 is the wavy metal filler of 304 materials, and second layer packing layer 19 is 304 materials, 350Y structured packing.
When using this tower to handle useless ammoniacal liquor, ammoniacal liquor, can operate like this:
Ammonium fluid and ammoniacal liquor mixing recovery liquid are divided into two-way and advance tower, wherein one the tunnel enter tower body middle and upper part by described material inlet 5 with going out the heat exchange in tower external heat exchanger of tower waste liquid after reclaiming heat, pass through second packing layer 19 evenly distributedly by described groove type distributor 18 through tower external heat exchanger.Another road is entered the shell side of described tubulation heat-exchanger rig 16 by the lower linking tube 15 between two tube sheets of described tubulation heat-exchanger rig 16 without the outer heat exchange of tower, heat up by the partition heat exchange of flowing through in the tubulation 16-1 by the steam of heating rising at the bottom of the still, discharge heat-exchanger rig 16 by the upper connecting tube on the tower wall between two tube sheets 14, the adapter 6 that enters on the described groove type distributor 18 by adapter enters in the tower then.Tower bottom steam distributor 13 is sent into steam in the tower, 7 liquid makes it gasification at the bottom of the heating tower, the steam that rises and liquid counter current contacting in the 350Y structured filling material layer 19 of the described second layer 304 materials of decline make ammonium fluid resolve into carbon dioxide and ammonia, and the ammonia in the ammoniacal liquor is also steamed.Carbon dioxide, ammonia and steam flow on tower, through rectifying section 17 again through heat-exchanger rig 16 behind intraductal heat exchange, excessive water vapor condensation Cheng Shui, the content that guarantees the water of exhaust gas body do not exceed standard and the technic index of gas component qualified.Gas is discharged by the outlet 2 of cat head 1, enters carbamide production system as raw material, and resolved liquid 7 is discharged through exporting 9 at the bottom of the tower, enters tower external heat exchanger and does to discharge after the heat recovery with the material that advances tower.
Claims (5)
1, a kind of structured packing Analytic Tower, include at the bottom of tower body, cat head and the tower, it is tightly connected and is integral, the mouth of pipe of on cat head, giving vent to anger, tower body is provided with point for measuring temperature and heat exchange material inlet, interface of the level gauge is arranged at the bottom of the tower and resolve after waste liquid outlet, be provided with steam distributor at the bottom of the tower, it is characterized in that: in tower, load filler, in the middle of described filler, be provided with a groove type distributor; The top of described distributor is first packing layer, is made up of the wavy metal filler, constitutes rectifying section; Being second packing layer below described distributor, is 304 materials, 305Y structured packing.
2, structured packing Analytic Tower according to claim 1 is characterized in that: be provided with a tubulation heat-exchanger rig above described first packing layer in tower.
3, structured packing Analytic Tower according to claim 2, it is characterized in that: described tubulation heat-exchanger rig includes lower perforated plate and tubulation, the two ends of described tubulation set firmly the described lower perforated plate of going up respectively, the last lower perforated plate and the tower body sealing that have tubulation are fixed, on the tower body wall between the last lower perforated plate, be provided with two holes up and down, take in the hole, described groove type distributor is bored a hole on the wall of tower body and is established pipe, is tightly connected in last adapter with described tubulation heat-exchanger rig.
4, structured packing Analytic Tower according to claim 3 is characterized in that: described tube sheet connects with tower body by flange seal and forms an integral body.
5, according to claim 1 or 2 or 3 or 4 described structured packing Analytic Towers, it is characterized in that: described groove type distributor is firm on inner wall of tower with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227643 CN2372031Y (en) | 1997-09-23 | 1997-09-23 | Regular packing analytical tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227643 CN2372031Y (en) | 1997-09-23 | 1997-09-23 | Regular packing analytical tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372031Y true CN2372031Y (en) | 2000-04-05 |
Family
ID=33940979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97227643 Expired - Fee Related CN2372031Y (en) | 1997-09-23 | 1997-09-23 | Regular packing analytical tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2372031Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611489A (en) * | 2013-11-26 | 2014-03-05 | 四川科新机电股份有限公司 | Multifunctional heat transfer separation unit |
| CN105806101A (en) * | 2014-12-31 | 2016-07-27 | 北京首创股份有限公司 | Material heat exchanger for sludge treatment |
-
1997
- 1997-09-23 CN CN 97227643 patent/CN2372031Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611489A (en) * | 2013-11-26 | 2014-03-05 | 四川科新机电股份有限公司 | Multifunctional heat transfer separation unit |
| CN103611489B (en) * | 2013-11-26 | 2016-03-16 | 四川科新机电股份有限公司 | Multifunctional heat transfer separation unit |
| CN105806101A (en) * | 2014-12-31 | 2016-07-27 | 北京首创股份有限公司 | Material heat exchanger for sludge treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |