CN203068915U - Novel efficient steam heater - Google Patents
Novel efficient steam heater Download PDFInfo
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- CN203068915U CN203068915U CN 201320091383 CN201320091383U CN203068915U CN 203068915 U CN203068915 U CN 203068915U CN 201320091383 CN201320091383 CN 201320091383 CN 201320091383 U CN201320091383 U CN 201320091383U CN 203068915 U CN203068915 U CN 203068915U
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Abstract
The utility model discloses a novel efficient steam heater which comprises a cylinder body and expansion joints arranged on one side of the cylinder body, wherein a pass partition plate is arranged in the middle of the cylinder body; an inner pipe plate and an outer pipe plate are arranged at the end part of each side of the cylinder body respectively; a bimetal rolling finned tube is in expanded connection with the inner pipe plate, and in welded connection with the outer pipe plate; a steam inlet channel and a condensate outlet channel are welded on the outer pipe plate which is provided with a 13 mm concave part in a pipe distribution area in the axial direction of a heat exchanger; the outer pipe plate is welded on the inner pipe plate, so that a 10 mm shallow cavity is formed between the two pipe plates; and an impingement baffle is welded in a connecting pipe inlet position of the steam inlet channel. The novel efficient steam heater improves the heat exchange efficiency and the product quality, reduces the energy consumption, saves the cost, and guarantees more convenience in manufacture and more reliable performance.
Description
Technical field
The utility model relates to a kind of steam heater, is specially a kind of at air separation unit purification system steam heater.
Background technology
At present, all be to adopt horizontal double-tube template formula with the steam heater major part on the air separation unit purification system.In the air separation unit, the raw air molecular sieve adsorber of flowing through earlier is through the adsorption cleaning of molecular sieve, remove amounts of carbon dioxide wherein, hydrocarbon and steam enter plate-fin heat exchanger in the ice chest then, it is cooled to enter rectifying column at last and carry out rectifying about-173 ℃.The dirty nitrogen of drawing in the ice chest enters steam heater, utilizes high-temperature steam to be heated about 180 ℃, enters molecular sieve adsorber then molecular sieve is regenerated.Needed temperature when dirty nitrogen is heated by steam regenerating molecular sieve in steam heater, and do not allowed steam leakage in dirty nitrogen.If water vapour is in case leak, then water vapour will be reproduced dirty nitrogen and carries and enter in the molecular sieve adsorber, and then contaminated feedstock air, after the air that contains steam enters plate-fin heat exchanger, it is stifled to produce ice at low temperatures, have a strong impact on the heat exchange effect of heat exchanger, finally cause a whole set of air separation unit to stop.So existing steam heater all adopts the double tubesheet pattern basically, this structural shape has guaranteed the normal operation of air separation unit effectively.
Traditional double tubesheet structural shape, as shown in Figure 2, heat exchanger tube adopts the light pipe pattern, and heat exchanger tube and internal tube plate adopt flexible expanded joint, adopt welding with outer tube plate, and the anti-leak chamber about 100mm is arranged between inside and outside tube sheet.Though adopt this structural shape can prevent effectively that tube side and shell side medium from mixing, and also exists some problems.At first, the heat exchanger tube utilization rate reduces.Because the anti-leak chamber is bigger between inside and outside tube sheet, causes effective heat exchange length of heat exchanger tube to shorten, heat exchange area reduces; Secondly, manufacture difficulty strengthens.Because the anti-leak chamber is bigger between inside and outside tube sheet, poling difficulty in order to make heat exchanger tube pass inside and outside tube sheet simultaneously, often needs reaming during actual assembled when causing assembling, causes internal tube plate expanded joint insufficient strength; In addition, along with the maximization of project, heat transmission equipment is also done bigger and bigger, and heat exchanger tube quantity is also more and more, and single device heat exchanger tube quantity is nearly four or five thousand sometimes, and the processing and manufacturing difficulty is bigger.
Therefore, in order to improve heat exchange efficiency, reduce energy consumption, save cost, improve the quality of products, be badly in need of improving the existing structure pattern, develop a kind of novel high-efficiency steam heater, make its manufacturing more convenient, more reliable performance.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of simple in structure, manufacturing
Convenient, technological requirement is relatively low, the easier control of workmanship, the high-efficiency steam heater that heat exchange efficiency is higher.
The purpose of this utility model is achieved in that
A kind of new and effective steam heater, comprise cylindrical shell 1, with the expansion joint 2 that is arranged on cylindrical shell 1 one sides, and pass partition 3, internal tube plate 6, outer tube plate 4, connect short circuit 5, bimetallic rolled fin pipe 7, steam inlet bobbin carriage 8 and condensate outlet bobbin carriage 9, it is characterized in that: described cylindrical shell 1 shell side is provided with pass partition 3 in the middle of importing and exporting and taking over, the end of cylindrical shell 1 both sides is respectively arranged with internal tube plate 6 and outer tube plate 4, bimetallic rolled fin pipe 7 adopts expanded joint to be connected with internal tube plate 6, be welded to connect with outer tube plate 4 employings, steam inlet bobbin carriage 8 and condensate outlet bobbin carriage 9 are welded on respectively on the outer tube plate 4;
The adapter import department of described steam inlet bobbin carriage 8 is welded with erosion control baffle plate 10.
Positive beneficial effect:The utility model has the following advantages owing to adopt above technical scheme:
1) as shown in Figure 1, therefore the utility model simplifies the structure and manufacturing process because the connection pipe nipple 5 about having saved 120mm between the inside and outside tube sheet has shortened the anti-leak cavity length L that prevents that shell journey medium from mixing greatly, reduced manufacture difficulty, made the easier assurance of workmanship; Simultaneously, effectively reduce the invalid length of heat exchanger tube, significantly increased effective heat exchange area.
2) the utility model has increased the shell side number of passes because shell side is provided with pass partition, has improved the shell side gas flow rate effectively, has improved the shell side exothermic coefficient, has increased heat exchange efficiency;
3) heat exchanger tube adopts bimetallic rolled fin pipe in the utility model.Because this heat exchanger shell pass medium is regeneration gas, the tube side medium is water vapour, utilizes steam condensation liberated heat to be used for thermal regeneration gas.Because shell side gas exothermic coefficient is lower, and tube side is the steam condensation, medium produces phase transformation, so its exothermic coefficient is higher than the exothermic coefficient of shell side far away.In order to improve the heat exchange efficiency of equipment, needs are strengthened the shell side heat exchange area, so heat exchanger tube pattern employing bimetallic rolled fin pipe, have improved the heat exchange area of shell side greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that inside and outside tube sheet connects in the prior art;
Fig. 3 is the structural representation that inside and outside tube sheet connects in the utility model;
Fig. 4 is the structural representation of bimetallic rolled fin pipe;
Among the figure be: cylindrical shell 1, expansion joint 2, pass partition 3, outer tube plate 4, pipe nipple 5, internal tube plate 6, bimetallic rolled fin pipe 7, steam inlet bobbin carriage 8, condensate outlet bobbin carriage 9, erosion control baffle plate 10.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As Fig. 1, shown in Figure 4, a kind of new and effective steam heater, comprise cylindrical shell 1, with the expansion joint 2 that is arranged on cylindrical shell 1 one sides, and pass partition 3, internal tube plate 6, outer tube plate 4, connection short circuit 5, bimetallic rolled fin pipe 7, steam inlet bobbin carriage 8 and condensate outlet bobbin carriage 9, it is characterized in that: described cylindrical shell 1 shell side is provided with pass partition 3 in the middle of importing and exporting and taking over, and improves the shell side gas flow rate, increases heat exchange efficiency; The end of cylindrical shell 1 both sides is respectively arranged with internal tube plate 6 and outer tube plate 4, bimetallic rolled fin pipe 7 adopts expanded joint to be connected with internal tube plate 6, be welded to connect with outer tube plate 4 employings, steam inlet bobbin carriage 8 and condensate outlet bobbin carriage 9 are welded on respectively on the outer tube plate 4.
As shown in Figure 3, outer tube plate 4 has the depression of 13mm along the heat exchanger axial direction in the stringing zone, and outer tube plate 4 is welded on the internal tube plate 6, makes the shallow-layer cavity that forms a 10mm between two tube sheets.This cavity is the anti-leak chamber, and tube side and shell side medium are separated, and plays the mixing that stops shell journey medium.
The adapter import department of described steam inlet bobbin carriage 8 is welded with erosion control baffle plate 10.
For using steam heater on a cover 40,000 air separation unit purification systems, as adopt traditional double tubesheet structural shape, then needing to choose diameter of the housing is DN1400mm, the heat exchanger length overall is 2 on heat exchanger about 5.5m, the required heat exchanger tube quantity of separate unit heat exchanger is 4001, and gross weight is about 31 tons.In the double tubesheet pattern heat exchanger 4 tube sheets and polylith deflection plate are arranged, all will bore 4001 holes on every tube sheet and the deflection plate, quite complexity is loaded down with trivial details for part processing and product assembling.As select new and effective steam heater of the present utility model for use, and then only need choose diameter of the housing is DN1900mm, and the heat exchanger length overall is 1 on heat exchanger about 7.7m, and heat exchanger tube quantity is about 250, and gross weight is about 21 tons.After selecting new and effective steam heater of the present utility model for use, guaranteeing under the resistance situation that equates, the double tubesheet pattern heat exchanger that weight ratio is traditional reduces 32%, floor space reduces 78%, make and all reductions greatly of assembly difficulty, equipment investment is saved more than 35%, has brought huge economic benefit.
Above embodiment only is used for explanation preferred embodiment of the present utility model; but the utility model is not limited to above-mentioned embodiment; in the ken that described field those of ordinary skill possesses; any modification of doing within spirit of the present utility model and the principle, be equal to and substitute and improvement etc., it all should be encompassed within the technical scheme scope that the utility model asks for protection.
Claims (3)
1. new and effective steam heater, comprise cylindrical shell (1), with the expansion joint that is arranged on cylindrical shell (1) one side (2), it is characterized in that: be provided with pass partition (3) in the middle of the described cylindrical shell (1), the end of cylindrical shell (1) both sides is respectively arranged with internal tube plate (6) and outer tube plate (4), bimetallic rolled fin pipe (7) adopts expanded joint to be connected with internal tube plate (6), be welded to connect with outer tube plate (4) employing, steam inlet bobbin carriage (8) and condensate outlet bobbin carriage (9) are welded on respectively on the outer tube plate (4).
2. a kind of new and effective steam heater according to claim 1, it is characterized in that: described outer tube plate (4) has the depression of 13mm along the heat exchanger axial direction in the stringing zone, outer tube plate (4) is welded on the internal tube plate (6), makes the shallow-layer cavity that forms a 10mm between two tube sheets.
3. a kind of new and effective steam heater according to claim 1, it is characterized in that: the adapter import department of described steam inlet bobbin carriage (8) is welded with erosion control baffle plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091383 CN203068915U (en) | 2013-02-28 | 2013-02-28 | Novel efficient steam heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091383 CN203068915U (en) | 2013-02-28 | 2013-02-28 | Novel efficient steam heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068915U true CN203068915U (en) | 2013-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320091383 Expired - Fee Related CN203068915U (en) | 2013-02-28 | 2013-02-28 | Novel efficient steam heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075870A (en) * | 2013-02-28 | 2013-05-01 | 河南汉诺顿换热器有限公司 | Novel efficient steam heater |
-
2013
- 2013-02-28 CN CN 201320091383 patent/CN203068915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075870A (en) * | 2013-02-28 | 2013-05-01 | 河南汉诺顿换热器有限公司 | Novel efficient steam heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |