CN203572143U - Kettle type multilayer condensation evaporator - Google Patents
Kettle type multilayer condensation evaporator Download PDFInfo
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- CN203572143U CN203572143U CN201320682241.XU CN201320682241U CN203572143U CN 203572143 U CN203572143 U CN 203572143U CN 201320682241 U CN201320682241 U CN 201320682241U CN 203572143 U CN203572143 U CN 203572143U
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Abstract
The utility model relates to a kettle type multilayer condensation evaporator. At least three layers of condensation evaporator units are sequentially arranged in a vertical shell from top to bottom, the condensation end of a plate fin type heat exchanger is communicated with a nitrogen inlet branch pipe and a liquid nitrogen backflow branch pipe, the nitrogen inlet branch pipe is communicated with a nitrogen inlet main pipe, the liquid nitrogen backflow branch pipe is communicated with a liquid nitrogen backflow collecting main pipe, an upper sealing cavity and a lower sealing cavity are adjacent to each other and are communicated with each other through a liquid nitrogen overflow pipe, a communication opening of a liquid nitrogen inlet pipe and the vertical shell is formed above the plate fin type heat exchanger of the condensation evaporator unit on the topmost layer and is communicated with the sealing cavities of the condensation evaporator unit, and a communication opening of a liquid nitrogen outlet pipe and the vertical shell is formed below the plate fin type heat exchanger of the condensation evaporator unit on the bottommost layer and is communicated with the sealing cavities of the condensation evaporator unit. According to the kettle type multilayer condensation evaporator, the heat exchange area of the condensation evaporator is expanded in a multiplied mode, and the heat exchange area requirement of a 50000-120000-grade air separation plant condensation evaporator can be met.
Description
Technical field
The utility model relates to a kind of autoclave multilayer condenser/evaporator, in the middle of air separation plant system.
Background technology
Along with the continuous increase of air separation plant scale, the air separation plant market demand of 50,000～120,000 grades is more and more, and the maximization of condenser/evaporator is also inevitable, and after the specification of condenser/evaporator maximizes, its technical difficulty is corresponding increase also.At present, each large air separation plant supplier both domestic and external all drops into a large amount of human and material resources, the maximization design problem that financial resources solve condenser/evaporator, and some achievements have been obtained, but, because research and development difficulty is large and technical problem is too complicated, make the maximization problem of condenser/evaporator be difficult to effectively be solved.
Autoclave multilayer condenser/evaporator is by housing parts and plate-fin heat exchanger cell formation.During normal work, plate-fin heat exchanger is all immersed in the liquid oxygen of housing, because being soaks operation entirely, can avoid like this separating out of hydrocarbon, bath formula entirely soak main cold be current security, the working forms of condenser/evaporator that reliability is the highest.
Current condenser/evaporator is distinguished from version, mainly contains vertical individual layer, vertical double and horizontal multi-row three types.Wherein vertical single layer structure is simple, and several (1,2,3 or 4) board-like arranging in housing adopt star arrangement or are arranged in juxtaposition; Vertical double has two-layer up and down, is connected two-layer up and down by overflow pipe with riser; Its structure of horizontal multi-row is longer, displacement volume can meet greatly the requirement of the above Main Condenser Associated with Air Separation heat exchange area of 50,000 grade, but in ice chest, take up space larger, pipe arrangement difficulty is larger, supports and can only be arranged on ice chest wall simultaneously, and the stress being subject in the time of can making to move is larger.
In vertical individual layer condenser/evaporator, aluminium-made plate type unit number is generally 1,2,3 or 4, and the board-like unit of the aluminium-made plate type number of star-like main condenser evaporimeter is generally 3.Its nitrogen of the condenser/evaporator of many board-like unit is general first branches to arm by house steward, enters after board-like unit liquefies and is collected and entered house steward by arm, and lower tower refluxes.Liquid oxygen, after upper tower enters in still, is vaporized in board-like unit, is subject to the poor effect of severe, constantly from bottom to top enters board-like unit, so forms circulation.Individual layer main condenser evaporimeter, owing to being subject to the limitation reason of diameter, generally can only meet the heat exchange area requirement of the following air separation unit of 20,000 grade.
Vertical double condenser/evaporator adopts upper and lower double-layer structure, the many employings in board-like unit 8 or 12 layouts, the more vertical individual layer expansion of heat exchange area is twice, liquid oxygen overflow pipe and oxygen riser are set between levels, the nitrogen of lower tower and liquid nitrogen are diverted to each board-like unit by manifold trunk and arm, every layer arranges survey full packages simultaneously, and top arranges the same tower of bracing frame and is connected.But the displacement volume of the solidifying evaporimeter of double-layer main cooling is still subject to the restriction of transportation clearance, general maximum can be accomplished the diameter of 4400mm, in housing, can fill at most 12 composition board type unit, therefore vertical double generally can meet the heat exchange demand of 50,000 following grade air separation plants, the above air separation plant of 50000 grade has been difficult to meet, need to be plug-in auxiliary cold, pipe arrangement difficulty is large like this.
Horizontal multi-row is the board-like cellular construction of horizontal multiple row, its advantage is the requirement that has solved the large heat exchange area of Large Air Separation Devices, generally in 50,000 grades and above air separation unit, configure, when but it is connected with upper and lower tower, pipeline is comparatively complicated, and shared ice chest space is large, not compact, pipe thermal compensation is difficult to meet the demands.
Utility model content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and autoclave multilayer condenser/evaporator that a kind of reasonable in design is provided, expanded at double the heat exchange area of condenser/evaporator, can meet the heat exchange area requirement of the condenser/evaporator of 50,000～120,000 grade air separation plants, its inner installing space is abundant, is easy to guarantee workmanship.
The technical scheme in the invention for solving the above technical problem is: a kind of autoclave multilayer condenser/evaporator, comprises that upright shell, liquid oxygen overflow pipe, liquid oxygen inlet tube, liquid oxygen outlet, oxygen collect that house steward, nitrogen enter house steward, liquid nitrogen reflux collects house steward; Liquid oxygen inlet tube is connected on the upper strata of upright shell, and the lower floor of upright shell connects liquid oxygen outlet; It is characterized in that: in described upright shell, be provided with successively from top to bottom at least three layers of condenser/evaporator unit; Every layer of described condenser/evaporator includes that seal chamber, plate-fin heat exchanger, oxygen collect arm, nitrogen enters arm, liquid nitrogen reflux arm; Described plate-fin heat exchanger is installed in seal chamber; The top of seal chamber is connected described oxygen and is collected arm, and oxygen collects arm and oxygen collects house steward's connection; The condensation end of described plate-fin heat exchanger is connected described nitrogen and is entered arm and liquid nitrogen reflux arm, and nitrogen enters arm and nitrogen enters house steward's connection, and liquid nitrogen reflux arm and liquid nitrogen reflux collect house steward and connect; Upper and lower two adjacent seal chambers are connected with liquid oxygen overflow pipe; The connection mouth of liquid oxygen inlet tube and upright shell is positioned at the top of the plate-fin heat exchanger of the condenser/evaporator unit of the described the superiors, and communicates with the seal chamber of this condenser/evaporator unit; The connection mouth of liquid oxygen outlet and upright shell is positioned at the below of the plate-fin heat exchanger of described undermost condenser/evaporator unit, and communicates with the seal chamber of this condenser/evaporator unit.
In upright shell described in the utility model, be provided with successively from top to bottom four layers of condenser/evaporator unit.
Compared with prior art, tool has the following advantages the utility model: adopt the integrated theory of multiple stratification, expanded at double the heat exchange area of condenser/evaporator, can meet the heat exchange area requirement of air separation plants more than 50,000 grades.Simultaneously multilayer condenser/evaporator can make appearance and size remain in zone of reasonableness, and inner installing space is abundant, is easy to guarantee workmanship, due to compact conformation, is also the master-plan of the air separation plant condition of providing convenience; Meanwhile, the demand to board-like unit heat exchange area after not only having met air separation unit and maximizing, compact conformation, has strengthened the stability of tower, has solved again the restricted problem of its displacement volume, has avoided labyrinth and the shortcoming thereof of horizontal multi-row.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail.
Referring to Fig. 1, the utility model embodiment is provided with successively from top to bottom three layers or four layers of condenser/evaporator unit 7 in upright shell 6, and in the present embodiment, condenser/evaporator unit 7 is four layers, is followed successively by from top to bottom ground floor, the second layer, the 3rd layer, the 4th layer.
It is every layer of working space that every layer of condenser/evaporator unit 7 includes seal chamber 9(), plate-fin heat exchanger 13, oxygen collect that arm 5, nitrogen enter arm 12, liquid nitrogen reflux collects arm 3.Plate-fin heat exchanger 13 is installed in seal chamber 7.The top of seal chamber 9 is connected oxygen and is collected arm 5, and oxygen collects arm 5 and collects house steward 4 with oxygen and connect.The condensation end of plate-fin heat exchanger 13 is connected nitrogen and is entered arm 12, and connects liquid nitrogen reflux arm 3, and nitrogen enters arm 12 and enters house steward 2 with nitrogen and connect, and liquid nitrogen reflux arm 3 collects house steward 11 with liquid nitrogen reflux and connects.Upper and lower two adjacent seal chamber 9 use liquid oxygen overflow pipes 10 are connected.Oxygen collects the oxygen product that house steward 4 is external compression flow process and goes out pipe, or oxygen collects the oxygen that house steward 4 goes out and goes tower as rising gas.
Liquid oxygen inlet tube 8 is connected with the upper strata of upright shell 6, and connect condenser/evaporator unit 7(that mouth is positioned at the superiors and be the condenser/evaporator unit 7 of ground floor) the top of plate-fin heat exchanger 13, this connection mouth and communicating with the seal chamber 9 of this condenser/evaporator unit 7.Liquid oxygen outlet 1 is connected with the lower floor of upright shell 6, and connect mouth and be positioned at the condenser/evaporator unit 7 that undermost condenser/evaporator unit 7(is the 4th layer) the below of plate-fin heat exchanger 13, this connection mouth and communicating with the seal chamber 9 of this condenser/evaporator unit 7.The liquid oxygen outlet that liquid oxygen outlet 1 is interior compression process.
The seal chamber 9 of the condenser/evaporator unit of below is connected with liquid oxygen pump control system.
The present embodiment operation principle:
(1) nitrogen condensation work loop: nitrogen is from lower tower, and because the operating pressure of nitrogen is high, condensation saturation point is high, and liquid oxygen operating pressure is low, evaporation saturation point is low, so that nitrogen condensation, liquid oxygen evaporation.Nitrogen enters house steward 2 from nitrogen and branches to each nitrogen and enter arm 12, and the plate-fin heat exchanger 13 that enters first to fourth layer is condensed into liquid nitrogen, by each liquid nitrogen reflux arm 3, is collected to after liquid nitrogen reflux collects house steward 11 and is entered Xia Ta.
(2) liquid oxygen evaporation work loop: liquid oxygen is from upper tower, by circulation liquid oxygen pump, the liquid oxygen pressurization of upper tower bottom is sent into condenser/evaporator top by liquid oxygen inlet tube 8, after flash tank gas-liquid separation, liquid oxygen enters the seal chamber 9 of ground floor condenser/evaporator unit 7, when the seal chamber 9 liquid oxygen liquid levels of ground floor condenser/evaporator unit 7 are during higher than plate-fin heat exchanger 13 top, the seal chamber 9 by 10 overflows of liquid oxygen overflow pipe to second layer condenser/evaporator unit 7; Extract out on oxygen self sealss cavity 9 tops, collects arm 5 be collected to oxygen and collect house steward 4 by oxygen.Three layers of condenser/evaporator unit 7 of liquid oxygen overflow to the of second layer condenser/evaporator unit 7, four layers of condenser/evaporator unit 7 of liquid oxygen overflow to the of the 3rd layer of condenser/evaporator unit 7, oxygen is extracted out from each seal chamber 9 tops, collects arm 5 be collected to oxygen and collect house steward 4 by each oxygen.Liquid level and the liquid oxygen pump control system of the 4th layer of condenser/evaporator unit 7 are interlocked, and make condenser/evaporator safe operation.
Claims (2)
1. an autoclave multilayer condenser/evaporator, comprises that upright shell, liquid oxygen overflow pipe, liquid oxygen inlet tube, liquid oxygen outlet, oxygen collect that house steward, nitrogen enter house steward, liquid nitrogen reflux collects house steward; Liquid oxygen inlet tube is connected on the upper strata of upright shell, and the lower floor of upright shell connects liquid oxygen outlet; It is characterized in that: in described upright shell, be provided with successively from top to bottom at least three layers of condenser/evaporator unit; Every layer of described condenser/evaporator includes that seal chamber, plate-fin heat exchanger, oxygen collect arm, nitrogen enters arm, liquid nitrogen reflux arm; Described plate-fin heat exchanger is installed in seal chamber; The top of seal chamber is connected described oxygen and is collected arm, and oxygen collects arm and oxygen collects house steward's connection; The condensation end of described plate-fin heat exchanger is connected described nitrogen and is entered arm and liquid nitrogen reflux arm, and nitrogen enters arm and nitrogen enters house steward's connection, and liquid nitrogen reflux arm and liquid nitrogen reflux collect house steward and connect; Upper and lower two adjacent seal chambers are connected with liquid oxygen overflow pipe; The connection mouth of liquid oxygen inlet tube and upright shell is positioned at the top of the plate-fin heat exchanger of the condenser/evaporator unit of the described the superiors, and communicates with the seal chamber of this condenser/evaporator unit; The connection mouth of liquid oxygen outlet and upright shell is positioned at the below of the plate-fin heat exchanger of described undermost condenser/evaporator unit, and communicates with the seal chamber of this condenser/evaporator unit.
2. autoclave multilayer condenser/evaporator according to claim 1, is characterized in that: in described upright shell, be provided with successively from top to bottom four layers of condenser/evaporator unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682241.XU CN203572143U (en) | 2013-11-01 | 2013-11-01 | Kettle type multilayer condensation evaporator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320682241.XU CN203572143U (en) | 2013-11-01 | 2013-11-01 | Kettle type multilayer condensation evaporator |
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| Publication Number | Publication Date |
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| CN203572143U true CN203572143U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320682241.XU Expired - Fee Related CN203572143U (en) | 2013-11-01 | 2013-11-01 | Kettle type multilayer condensation evaporator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880026A (en) * | 2015-05-26 | 2015-09-02 | 杭州杭氧股份有限公司 | Method and device for reducing concentration of hydrocarbon in multi-layer main condensing evaporator in air separation unit |
| CN107588667A (en) * | 2017-10-12 | 2018-01-16 | 开封空分集团有限公司 | Star multilayer condenser/evaporator |
| CN113405317A (en) * | 2021-06-01 | 2021-09-17 | 开封迪尔空分实业有限公司 | Multi-layer main cooling system for air separation equipment |
-
2013
- 2013-11-01 CN CN201320682241.XU patent/CN203572143U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880026A (en) * | 2015-05-26 | 2015-09-02 | 杭州杭氧股份有限公司 | Method and device for reducing concentration of hydrocarbon in multi-layer main condensing evaporator in air separation unit |
| CN107588667A (en) * | 2017-10-12 | 2018-01-16 | 开封空分集团有限公司 | Star multilayer condenser/evaporator |
| CN107588667B (en) * | 2017-10-12 | 2023-10-03 | 开封空分集团有限公司 | Star-shaped multi-layer condensation evaporator |
| CN113405317A (en) * | 2021-06-01 | 2021-09-17 | 开封迪尔空分实业有限公司 | Multi-layer main cooling system for air separation equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 312400, Hangzhou, Zhejiang, Shengzhou Pukou street, 288 South Avenue, west two floor Patentee after: Zoko Energy Equipment Co., Ltd. Address before: 310051, room 1509, No. 2401 bin Sheng Road, Hangzhou, Zhejiang, Binjiang District Patentee before: Zoko Energy Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20171101 |