CN201322508Y - Horizontal counterflow condensation evaporator - Google Patents
Horizontal counterflow condensation evaporator Download PDFInfo
- Publication number
- CN201322508Y CN201322508Y CNU2008201694397U CN200820169439U CN201322508Y CN 201322508 Y CN201322508 Y CN 201322508Y CN U2008201694397 U CNU2008201694397 U CN U2008201694397U CN 200820169439 U CN200820169439 U CN 200820169439U CN 201322508 Y CN201322508 Y CN 201322508Y
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- CN
- China
- Prior art keywords
- condensation
- liquid oxygen
- evaporation
- nitrogen
- runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
- F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
- F25J5/005—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger in a reboiler-condenser, e.g. within a column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/04—Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/20—Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Disclosed is a horizontal counterflow condensation evaporator, which is composed of a plurality of condensation evaporating units and a cylinder body. The condensation evaporating units are arranged into one or two rows along the length direction of the cylinder body and are mounted in the cylinder body via an integrated support. Each condensation evaporating unit comprises a liquid oxygen evaporating channel and a nitrogen condensing channel, the two channels are in staggered arrangement via a counterflow form, wherein the liquid oxygen evaporating channel of each condensation evaporating unit is perpendicular to the length direction of the cylinder body, at least one oxygen evaporating space is arranged in the liquid oxygen evaporating channel, and the liquid oxygen evaporating channel and the nitrogen condensing channel are connected with corresponding connectors of an upper column and a lower column respectively via pipes. The horizontal counterflow condensation evaporator can be designed according to actual conveying conditions, thereby resolving the difficult problem that ultra-large air-separation vertical type condensation evaporators are difficult to be conveyed due to overlarge diameters. Besides, liquid oxygen and nitrogen realize counterflow heat-exchange, thereby increasing heat transmission efficiency, enabling the structure to be compacter, being capable of realizing liquid oxygen total-immersion operation, and sufficiently guaranteeing operation safety.
Description
Technical field
The utility model relates to a kind of heat-exchange apparatus, especially a kind ofly be used for air separation plant and carry out the equipment that the different temperatures medium carries out heat exchange, belong to heat transmission equipment.
Background technology
In the air separation plant, condenser/evaporator between the tower up and down, basically form by the condensation evaporation unit, the nitrogen condensation runner that in this condensation art of composition unit, has comprised liquid nitrogen vaporization runner and adjacent layout, and often adopt individual layer or structure of two layers form, when liquid oxygen and nitrogen flow through, carry out the transmission of heat mutually in runner separately, the heat that liquid oxygen absorbs nitrogen is evaporated, and becomes liquid nitrogen after making the nitrogen heat release.The condenser/evaporator of this version, along with the continuous maximization of air separation plant, its transportation problem has become the empty a great problem that divides large scale development, in super-huge air separation plant, even adopted the condenser/evaporator of double-decker form, the occasion that can not satisfy the demand also arranged.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of good effect of heat exchange is provided, and can reduce the horizontal reversed flow condensation evaporator of cost of transportation and transport difficulty.It is made up of a plurality of condensation evaporations unit and cylindrical shell, and described a plurality of condensation evaporations unit divides a row or two rows to arrange along the cylindrical shell length direction, and is installed in the cylindrical shell by whole bearing; Described condensation evaporation unit comprises liquid oxygen evaporation channel and nitrogen condensation channel, and two runners are with the reflux type layout that is staggered; Wherein the liquid oxygen of condensation evaporation unit evaporation runner is vertical with the cylindrical shell length direction, and is provided with the oxygen evaporation large space of at least one in liquid oxygen evaporation runner, and liquid oxygen evaporates runner and nitrogen condensation runner and is connected with tower the corresponding interface up and down with pipeline respectively.
Described condensation evaporation unit divides two rows to be arranged in parallel, liquid oxygen in condensation evaporation unit evaporation runner divides up and down two-layer layout and is interconnected, centre, condensation evaporation unit or both sides at described liquid oxygen evaporation runner are provided with the liquid oxygen bucket, and by this liquid oxygen bucket liquid oxygen are evaporated the liquid oxygen evaporation runner that runner is divided into levels.
One end of described condensation evaporation unit and cylindrical shell is fixed, and other end retractable connects, and is respectively arranged with the compensation elbow in the junction of nitrogen tube and liquid nitrogen pipe and cylindrical shell.
Condenser/evaporator described in the utility model is arranged separately, with pipeline it is connected with tower up and down, a plurality of condenser/evaporators unit divides a row or two rows to arrange along the cylindrical shell length direction, liquid oxygen flow direction in the condenser/evaporator unit is vertical with the cylindrical shell length direction, enter each condenser/evaporator unit from the nitrogen of following tower along nitrogen tube, in the unit, be condensed into liquid nitrogen, nitrogen tube and liquid nitrogen pipe gather outside condenser/evaporator, liquid oxygen evaporates in the condenser/evaporator unit, oxygen enters large space, this kind arranges that great advantage is exactly liquid oxygen and nitrogen countercurrent heat-transfer, improve heat transfer efficiency and compact conformation, exchange capability of heat is convenient to expansion, and overall dimensions is little, convenient transportation, even maximize empty the branch, need condenser/evaporator element number in parallel to increase, because of arranging along the cylindrical shell length direction condenser/evaporator unit, do not need only to rely on enlarged diameter to satisfy heat exchange, thereby more be applicable to large-scale or super-huge air separation plant.Because last tower separates fully with condenser/evaporator, just in case accidents such as condenser/evaporator generation microexplosion can not have influence on tower, has improved device '.
Another kind of scheme of the present utility model is: the empty double-deck condenser/evaporator unit is arranged in the container, the empty double-deck condenser/evaporator unit promptly is to realize that in the unit liquid oxygen divides two-layer up and down evaporation respectively, the nitrogen condensation then is the structure of condensation in the individual layer, this structure is specially adapted to the evaporation occasion of low liquid level, import in the condenser/evaporator unit, upper strata earlier from last tower liquid oxygen, when upper strata liquid level height to setting value overflow again to bulk container, bilevel liquid oxygen liquid level is identical, and nitrogen then enters condensation in each condenser/evaporator unit along nitrogen tube.
The utility model compared with prior art has following technique effect: one can design according to the actual shipment situation, has solved the excessive difficult problem that is difficult to transport of super-huge empty discrete condenser/evaporator diameter.Its two liquid oxygen and nitrogen are realized countercurrent flow, improve heat transfer efficiency.It three can realize that liquid oxygen soaks operation entirely, fully guarantees security.
Description of drawings
Fig. 1 is the single arrangement architecture figure in condenser/evaporator of the present utility model unit.
Fig. 2 is condenser/evaporator of the present utility model unit two row's arrangement architecture figure.
Fig. 3 is a kind of example structure figure that the double-deck condenser/evaporator of void of the present utility model unit two rows arrange.
Fig. 4 is the another kind of structure chart that the double-deck condenser/evaporator of void of the present utility model unit two rows arrange.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Fig. 1,2, the utility model is made up of a plurality of condensation evaporations unit 1 and cylindrical shell 2, described a plurality of condensation evaporations unit 1 divides a row or two rows to arrange along cylindrical shell 2 length directions, and is installed in the cylindrical shell 2 by whole bearing 3; Described condensation evaporation unit 1 comprises liquid oxygen evaporation channel 4 and nitrogen condensation channel 5, and two runners are with the reflux type layout that is staggered; Wherein the liquid oxygen of condensation evaporation unit evaporation runner 4 is vertical with cylindrical shell 2 length directions, and in liquid oxygen evaporation runner, being provided with at least one oxygen evaporation large space 6, liquid oxygen evaporation runner 4 and nitrogen condensation runner 5 are connected with tower the corresponding interface up and down with pipeline respectively.
Condenser/evaporator described in the utility model unit is single arrangement, can many be arranged in parallel, liquid oxygen evaporates in bulk container, enough separated spaces are arranged, and oxygen is relative also lower to the pipe flow speed of last tower, makes oxygen enter Shang Ta smoothly, nitrogen imports board-like unit by nitrogen tube, liquid nitrogen is derived by liquid nitrogen pipe, realizes countercurrent flow with liquid oxygen, improves heat transfer efficiency.The utility model mainly adopts the spread pattern of board-like unit, this kind arrangement architecture compactness, and the flow velocity of nitrogen and flow resistance and individual layer master cold-zone are not little, have increased the separated space of oxygen simultaneously.
Be that 1 minute two row in described condensation evaporation unit is arranged in parallel shown in the accompanying drawing 3,4, liquid oxygen evaporation runner in the condensation evaporation unit 14 minutes is two-layer layout and being interconnected up and down, centre, condensation evaporation unit or both sides at described liquid oxygen evaporation runner 4 are provided with liquid oxygen bucket 7, see shown in the accompanying drawing 3,4, and liquid oxygen is evaporated the liquid oxygen evaporation runner that runner 4 is divided into levels by this liquid oxygen bucket 7.
The condensation evaporation unit 1 minute two row arrange, can many be arranged in parallel, liquid oxygen evaporates in bulk container, enough separated spaces are arranged, and oxygen is relative also lower to the pipe flow speed of last tower, makes oxygen enter Shang Ta smoothly, nitrogen imports board-like unit by nitrogen tube, liquid nitrogen is derived by liquid nitrogen pipe, realizes countercurrent flow with liquid oxygen, improves heat transfer efficiency.
Shown in the accompanying drawing 3 empty double-deck condensation evaporation unit two row's arrangement architecture figure, and wherein said liquid oxygen bucket 7 is in both sides, they can many be arranged in parallel, liquid oxygen divides two-layer evaporation up and down, the liquid oxygen bucket 7 on upper strata is distributed in both sides, and nitrogen imports board-like unit by nitrogen tube, i.e. nitrogen condensation runner 5, liquid nitrogen is derived by liquid nitrogen pipe, realizes countercurrent flow with liquid oxygen.
Shown in the accompanying drawing 4 empty double-deck condenser/evaporator unit two row's arrangement architecture figure, and described liquid oxygen bucket is in the centre, they can many be arranged in parallel, liquid oxygen divides two-layer evaporation up and down, the liquid oxygen bucket 7 on upper strata is arranged in the middle of the two row unit, and nitrogen imports board-like unit by nitrogen tube, i.e. nitrogen condensation runner 5, liquid nitrogen is derived by liquid nitrogen pipe, realizes countercurrent flow with liquid oxygen.
Liquid oxygen described in the utility model is fully mobile in whole condenser/evaporator, there is not the dead band, in the utility model bulk container, because the liquid oxygen flow direction is vertical with cylindrical shell 2 length directions, hoop flows better, liquid oxygen and nitrogen are realized countercurrent flow, improve heat transfer efficiency, and the flowability of liquid oxygen promotes liquid oxygen flowing in this direction by the reasonable Arrangement of liquid oxygen being imported and exported pipe on cylindrical shell 2 length directions.
The utility model condensation evaporation unit divides a row or two rows to arrange, under the more situation of platform number, if the outlet of the liquid nitrogen stream of condensation is not smooth, make that the liquid nitrogen liquid level of each inside, condensation evaporation unit is inconsistent, cause between the condensation evaporation unit heat exchange inhomogeneous, form bias current, we have improved the form of board-like unit supports this point, rigidity and planarization groove aluminium is preferably adopted in whole support, and support and require just can install after the smoothing, require simultaneously to avoid liquid nitrogen hydrops in the condenser/evaporator unit jointly by rational duct arrangement.
The utility model liquid oxygen evaporates in bulk container, and enough separated spaces are arranged, and oxygen is relative also lower to the pipe flow speed of last tower, makes oxygen enter Shang Ta smoothly.Accidents such as condenser/evaporator generation microexplosion go up simultaneously tower and separate fully, just in case can not have influence on tower with condenser/evaporator.
Consider that the inconsistent meeting of condensation evaporation unit and cylindrical shell shrinkage produces stress, condensation evaporation unit and cylindrical shell one section is fixing, and other end retractable connects, and is respectively arranged with compensation elbow 8 in the junction of nitrogen tube and liquid nitrogen pipe and cylindrical shell.
Claims (3)
1, a kind of horizontal reversed flow condensation evaporator, it is made up of a plurality of condensation evaporations unit and cylindrical shell, it is characterized in that described a plurality of condensation evaporations unit divides a row or two rows to arrange along the cylindrical shell length direction, and is installed in the cylindrical shell by whole bearing; Described condensation evaporation unit comprises liquid oxygen evaporation channel and nitrogen condensation channel, and two runners are with the reflux type layout that is staggered; Wherein the liquid oxygen of condensation evaporation unit evaporation runner is vertical with the cylindrical shell length direction, and is provided with at least one oxygen evaporation large space in liquid oxygen evaporation runner, and liquid oxygen evaporates runner and nitrogen condensation runner and is connected with tower the corresponding interface up and down with pipeline respectively.
2, horizontal reversed flow condensation evaporator according to claim 1, it is characterized in that described condensation evaporation unit divides two rows to be arranged in parallel, liquid oxygen in condensation evaporation unit evaporation runner divides up and down two-layer layout and is interconnected, centre, condensation evaporation unit or both sides at described liquid oxygen evaporation runner are provided with the liquid oxygen bucket, and by this liquid oxygen bucket liquid oxygen are evaporated the liquid oxygen evaporation runner that runner is divided into levels.
3, horizontal reversed flow condensation evaporator according to claim 2, one section of it is characterized in that described condensation evaporation unit and cylindrical shell is fixing, and other end retractable connects, and is respectively arranged with the compensation elbow in the junction of nitrogen tube and liquid nitrogen pipe and cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201694397U CN201322508Y (en) | 2008-12-11 | 2008-12-11 | Horizontal counterflow condensation evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201694397U CN201322508Y (en) | 2008-12-11 | 2008-12-11 | Horizontal counterflow condensation evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322508Y true CN201322508Y (en) | 2009-10-07 |
Family
ID=41159889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201694397U Expired - Lifetime CN201322508Y (en) | 2008-12-11 | 2008-12-11 | Horizontal counterflow condensation evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322508Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424464B (en) * | 2008-12-11 | 2010-12-08 | 杭州杭氧股份有限公司 | Horizontal reversed flow condensation evaporator |
-
2008
- 2008-12-11 CN CNU2008201694397U patent/CN201322508Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424464B (en) * | 2008-12-11 | 2010-12-08 | 杭州杭氧股份有限公司 | Horizontal reversed flow condensation evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091007 Effective date of abandoning: 20081211 |