CN203177715U - Heat exchanger enabling user to easily overhaul and detect leakage - Google Patents
Heat exchanger enabling user to easily overhaul and detect leakage Download PDFInfo
- Publication number
- CN203177715U CN203177715U CN 201320130343 CN201320130343U CN203177715U CN 203177715 U CN203177715 U CN 203177715U CN 201320130343 CN201320130343 CN 201320130343 CN 201320130343 U CN201320130343 U CN 201320130343U CN 203177715 U CN203177715 U CN 203177715U
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- heat exchanger
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- shell
- tube bundle
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Abstract
The utility model relates to a heat exchanger which comprises a heat exchanger shell and a plurality of mutually-parallel tube bundles located inside the heat exchanger shell. A water inlet and a water outlet are formed in the heat exchanger shell, two ends of the heat exchanger shell are respectively provided with a tube bundle end sealing box, and an air inlet and an air outlet are formed in each tube bundle end sealing box. Manholes for overhauling are further formed below the tube bundle end sealing boxes, and the manholes are connected with the heat exchanger shell through flanges. The manholes for overhauling are formed in the tube bundle end sealing positions, a user only needs to disassemble the manholes when conducting pressure testing, leakage detection and repairing, liquid media and gas media (innocuous and unpoisonous gas which is not prone to explosion) for pressure testing are filled into a shell side, the user can enter the heat exchanger for operation, the liquid media and the gas media can be cleared away after the operation is completed, the manholes are covered, and a huge sealing end is not required to be disassembled. The heat exchanger solves the problem that the sealing end is required to be disassembled to detect tubes and welding positions between the tubes and tube plates when an original heat exchanger is overhauled every time, saves time and labor, shortens the repairing cycle, and solves a series of production problems caused by long-time halting during maintenance.
Description
Technical field
The utility model relates to a kind of heat exchanger that is easy to overhaul leakage detection.
Background technology
Tubular heat exchanger is a kind of heat exchanger most widely used on present chemical industry and the Alcohol Production.It mainly is made up of housing, tube sheet, heat exchanger tube, end socket, hydraulic barrier etc.Required material can adopt ordinary carbon steel, red copper or stainless steel to make respectively.When carrying out heat exchange, a kind of fluid is entered by the connecting piece place of end socket, flows at pipe, and from the outlet outflow of the end socket other end, this is referred to as tube side; In addition-and kind of fluid enters by the adapter of housing, and another adapter from housing is flowed out, and this is called the shell side tubular heat exchanger.
The heat exchanger seepage is the most common equipment control problem during heat exchanger uses, seepage is mainly corroded and is caused, small part is that the corrosion form of tubular heat exchanger has two kinds substantially: electrochemical corrosion and chemical attack owing to the manufacturing process defective of heat exchanger type selecting and heat exchanger itself.Tubular heat exchanger is when making, and manual electric arc welding is generally adopted in the welding of tube sheet and tubulation, and there is defective in various degree in weld shape, and as depression, pore, slag inclusion etc., the distribution of weld stress is also inhomogeneous.Tube sheet part generally contacts with industrial colling during use, and the impurity in the industrial colling, salt, gas, microorganism all can constitute the corrosion to tube sheet and weld seam.Our electrochemical corrosion of often saying that Here it is.Studies show that no matter industry water is fresh water or seawater, and the oxygen of various ions and dissolving all can be arranged, wherein the change in concentration of chlorion and oxygen plays an important role to the corrosion of metal shape.In addition, the complexity of metal structure also can influence etch state.Therefore, the corrosion of tube sheet and tubulation weld seam is based on pitting and crevice corrosion.From outside watch, the tube sheet surface has many corrosion products and deposition thing, the pit that is distributing and differing in size.When being medium with the seawater, also can produce galvanic corrosion.Chemical attack is exactly the corrosion of medium, and heat exchanger tube sheet contacts various chemical mediators, will be subjected to the corrosion of chemical mediator.In addition, heat exchanger tube sheet also can and heat exchanger tube between produce certain bimetallic corrosion.Some tube sheets also are in the erosion of corrosive medium for a long time.Especially fixed tube-sheet exchanger also has thermal (temperature difference) stress, and very easily leak tube sheet and heat exchanger tube connection place, causes heat exchanger failure.
Tubular heat exchanger long-time running meeting causes equipment to be stopped up by incrustation scale, will make efficient reduction, energy consumption increase, the lost of life.If incrustation scale can not be removed in time, will face maintenance of equipment, shut down or scrap the danger of replacing.A lot of problems appear in traditional cleaning way such as mechanical means (scrape, brush), water under high pressure, Chemical cleaning (pickling) etc. when the heat exchanging device cleans for a long time: can not thoroughly remove deposits such as incrustation scale, and equipment caused corrosion, residual acid produces anticaustic or underdeposit corrosion to material, finally cause more exchange device, in addition, the cleaning waste liquid is poisonous, needs substantial contribution to carry out wastewater treatment.Enterprise can adopt the high-efficiency environment friendly cleaning agent to avoid above-mentioned situation, and it has efficiently, environmental protection, safety, no corrodible property, and not only cleaning performance is good but also to not corrosion of equipment, can guarantee the long-term use of air compressor machine.Good fortune generation Tyke cleaning agent (distinctive interpolation wetting agent and penetrating agent, can effectively remove sediments such as the most obstinate incrustation scale (calcium carbonate) that produces in the watering equipment, rust deposite, grease, foundry loam, can not damage human body simultaneously, can not produce other harmful reactions such as erosion, spot corrosion, oxidation to materials such as iron and steel, red copper, nickel, titanium, rubber, plastics, fiber, glass, potteries, can prolong the service life of equipment greatly.
Increase along with large chemical complex, the maximization of equipment has become trend, and large-scale heat transmission equipment (especially for the heat transmission equipment of barrel dliameter greater than 1.5 meters) occupies very important effect in the chemical plant, and in the chemical plant for tube side leakage detection and the repairing of heat transmission equipment, become a very important job.At present, when the workman overhauls large heat exchanger at every turn, all need to remove end socket and namely restrain the weld that header tank integral body checks pipe and tube-to-tube sheet connection.This need employ a large amount of maintainers and plant equipment such as large-scale crane etc., consumption worker consuming time for large-scale heat transmission equipment.
Summary of the invention
The purpose of this utility model namely is to provide a kind of heat exchanger that can check leak source and repairing easily to the large heat exchanger tube side, the time between overhauls(TBO) has been shortened in the use of this heat exchanger, has avoided a series of production problems that cause owing to the long-time parking that causes of maintenance.
The heat exchanger that is easy to overhaul leakage detection of the present utility model, comprise heat exchanger shell and several tube banks that are parallel to each other that are positioned at housing, described housing is provided with water inlet and delivery port, the two ends of described housing is provided with the tube bank header tank, described tube bank header tank is provided with air inlet and gas outlet, also be provided with the manhole for maintenance below described tube bank header tank, described manhole connects housing by flange.
The diameter of described manhole is 450-550mm.
For the heat transmission equipment of barrel dliameter greater than 1.5 meters, considering to guarantee to design under the situation about allowing, the place opens inspection manhole at the tube bank header tank, carrying out only need removing manhole when the pressure testing leakage detection is repaired, shell side pours liquid and the gas medium of pressure testing, and the people just can enter operation, and operation finishes the back removing totally, cover manhole, do not need to remove huge tube bank header tank.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, water inlet; 2, tube bank; 3, drain; 4, heat exchanger shell; 5, delivery port; 6, tube bank header tank; 7, air inlet; 8, manhole; 9, discharging hole; 10, gas outlet.
The specific embodiment
The heat exchanger that is easy to overhaul leakage detection of the present utility model, comprise heat exchanger shell 4 and several tube banks that are parallel to each other 2 that are positioned at housing, housing 4 is provided with water inlet 1 and delivery port 5, the two ends of housing 4 is provided with tube bank header tank 6, tube bank header tank 6 is provided with air inlet 7 and gas outlet 10, also be provided with the manhole 8 for maintenance below described tube bank header tank 6, manhole 8 connects housing 4, the about 500mm of the diameter of manhole 8 by flange.
For the large-sized calandria type heat exchanger of using in the ethylene glycol production, its barrel dliameter is greater than 1.5 meters, the utility model is offered inspection manhole at its tube bank end socket place, carrying out only need removing manhole when the pressure testing leakage detection is repaired, shell side pours liquid and the gas medium (gas of nontoxic difficult blast) of pressure testing, and the people just can enter operation, and operation finishes the back removing totally, cover manhole, do not need to remove huge end socket.Can solve former heat exchanger all needs to remove the problem that end socket checks the weld of pipe and tube-to-tube sheet connection when each maintenance, time saving and energy saving, and has shortened the time between overhauls(TBO), has avoided owing to keep in repair a series of production problems that the long-time parking that causes causes.
Claims (2)
1. heat exchanger that is easy to overhaul leakage detection, comprise heat exchanger shell (4) and be positioned at several tube banks that are parallel to each other (2) of housing (4), described housing (4) is provided with water inlet (1) and delivery port (5), the two ends of described housing (4) is provided with tube bank header tank (6), described tube bank header tank (6) is provided with air inlet (7) and gas outlet (10), it is characterized in that: also be provided with the manhole (8) for maintenance in the below of described tube bank header tank (6), described manhole (8) connects housing (4) by flange.
2. the heat exchanger that is easy to overhaul leakage detection as claimed in claim 1, it is characterized in that: the diameter of described manhole (8) is 450-550mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130343 CN203177715U (en) | 2013-03-21 | 2013-03-21 | Heat exchanger enabling user to easily overhaul and detect leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130343 CN203177715U (en) | 2013-03-21 | 2013-03-21 | Heat exchanger enabling user to easily overhaul and detect leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177715U true CN203177715U (en) | 2013-09-04 |
Family
ID=49074399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130343 Expired - Fee Related CN203177715U (en) | 2013-03-21 | 2013-03-21 | Heat exchanger enabling user to easily overhaul and detect leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177715U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154783A (en) * | 2014-05-06 | 2014-11-19 | 山东金泽利能源科技有限公司 | Shell and tube heat exchanger easy to repair |
| CN106555995A (en) * | 2015-09-28 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method and its device of wet method Sulphuric acid heat recovery |
| CN109579563A (en) * | 2018-12-13 | 2019-04-05 | 艾普尔换热器(苏州)有限公司 | A kind of bitubular casting shell heat exchanger |
-
2013
- 2013-03-21 CN CN 201320130343 patent/CN203177715U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154783A (en) * | 2014-05-06 | 2014-11-19 | 山东金泽利能源科技有限公司 | Shell and tube heat exchanger easy to repair |
| CN104154783B (en) * | 2014-05-06 | 2016-01-20 | 山东金泽利能源科技有限公司 | A kind of tubular heat exchanger being easy to overhaul |
| CN106555995A (en) * | 2015-09-28 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method and its device of wet method Sulphuric acid heat recovery |
| CN106555995B (en) * | 2015-09-28 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of method and device thereof of wet process Sulphuric acid heat recovery |
| CN109579563A (en) * | 2018-12-13 | 2019-04-05 | 艾普尔换热器(苏州)有限公司 | A kind of bitubular casting shell heat exchanger |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160321 |