CN2861774Y - High-temperature heat exchanger - Google Patents
High-temperature heat exchanger Download PDFInfo
- Publication number
- CN2861774Y CN2861774Y CNU2005200779604U CN200520077960U CN2861774Y CN 2861774 Y CN2861774 Y CN 2861774Y CN U2005200779604 U CNU2005200779604 U CN U2005200779604U CN 200520077960 U CN200520077960 U CN 200520077960U CN 2861774 Y CN2861774 Y CN 2861774Y
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- China
- Prior art keywords
- heat exchanger
- temperature
- casing
- heat
- flue gas
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- 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 - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a high temperature heat exchanger used for heating recovery of high temperature flue gas, which comprises a heat exchanger body and an intake header, a high temperature flue gas intake is arranged in the front of the heat exchanger body. The intake header comprises a case and a cover. The case is arranged in the front of the heat exchanger body. The case has a high temperature flue gas inlet as well as an output close to the high temperature flue intake of the heat exchanger. A gap for moving the heat exchanger body relative to the case is arranged between the heat exchanger body and the case. The cover sits around the external gap. Packing material is filled inside the cover; so the heat exchanger body and the case can have relative and free movement when the high temperature heat exchanger is expanded due to high temperature. The utility model can absorb heating expansion and make the heat exchanger operate stably and reliably.
Description
[technical field]
The utility model relates to a kind of high-temperature heat-exchanging, refers in particular to a kind of high-temperature heat-exchanging that is used for high-temperature flue gas is carried out heat recovery.
[background technology]
High-temperature heat-exchanging be used for to the big flow high-temperature flue gas that in incinerator, produces cool off, the equipment of heat recovery.
Usually, in the color painted steel strip production line, be mixed with environmentally harmful inflammable substance in the gas via spraying coating process process generation in the spray booth, therefore before atmosphere, need to carry out harmless processing row, after normally pernicious gas being drawn, add a certain proportion of coal gas, enter in the incinerator after the mixing and burn, the high-temperature flue gas (about 800 ℃) that produces enters the high-temperature heat-exchanging tube side and carries out heat recovery, successively through the high-temperature region heat exchanger, the middle cylindrical shell that connects, the low-temperature space heat exchanger, carry out thermal energy exchange with fresh air from air blast, fresh air passes through between the heat exchange tube of low-temperature space heat exchanger successively and between the heat exchange tube of high-temperature region heat exchanger, the fresh air temperature is heated to about 600 ℃ step by step to meet the demand of spraying coating process.
The high temperature fresh air enters spray booth and is used for spraying steel plate technology, enters in the incinerator behind the pernicious gas adding coal gas of generation again and burns, and moves in circles.
The major function of this equipment is: the environmentally harmful high temperature combustible waste gases (containing benzene, phenol etc.) that utilizes spray booth to produce, mixed gas enters in the incinerator and burns, to eliminate environmentally harmful material, meet environmental emission standard, thus the environment-friendly function of the project of realization; The high-temperature flue gas that produces is used for heating the fresh air that enters in the spray booth, satisfying the spraying coating process requirement, thus the power saving function of the project of realization.
One, industry high-temperature heat-exchanging manufacturing technology commonly used is at present:
1. the two ends of high-temperature region heat exchanger, low-temperature space heat exchanger are respectively equipped with tube sheet, are connected with heat exchanger tube between the tube sheet, and the opening of corresponding heat exchanger tube is provided with perforate on the tube sheet.
2. fresh air flows between Tube Sheet of Heat Exchanger, guarantees that by four tube bundle support plates fresh air flows, and carries out exchange heat on perpendicular to the direction of tube bank;
3. an expansion joint is set, to absorb the thermal expansion that heat exchanger Yin Gaowen causes in the high-temperature flue gas exit;
4. establish fixing point at high-temperature flue gas outlet bearing place, make entire equipment at high temperature to the importer to expansion;
5. a corrugated-type expansion joint is set, to absorb the thermal expansion that heat exchanger Yin Gaowen causes on the high-temperature flue gas inlet pipeline.
6. the end socket of a hemispherical dome shape respectively is set, to guarantee the requirement of distribution of gas at the high-temperature flue gas import and export.
Two, above-mentioned manufacturing technology has the following disadvantages:
High-temperature flue gas is from about 800 ℃ about 200 ℃ of dropping to the exit of import department, the high-temperature heat-exchanging expanded by heating, because of the thermal expansion uptake of the corrugated-type expansion joint of high-temperature heat-exchanging is not enough to offset the elongation that high-temperature heat-exchanging occurs because of thermal expansion, cause occurring tube brakes, tube sheet and the phenomenon that crack deformation, pipeline are out of shape because of thermal expansion occurs, serious developing into can't guarantee the heat exchange effect.
Since the restriction of above-mentioned factor, when high-temperature heat-exchanging commonly used at present is applied to color coating line, the less stable of continuous operation, service life is undesirable.That have even the equipment production time is not long, with regard to pipe drawing crack, tube sheet occurring crackle appears, problems such as distortion appear in pipeline, influence greatly color coating line normally, stable operation.
Therefore, necessaryly provide a kind of high-temperature heat-exchanging that can overcome above-mentioned defective.
[utility model content]
The purpose of this utility model is to provide a kind of working stability, reliable high-temperature heat-exchanging.
For achieving the above object, the utility model adopts following technical scheme: a kind of high-temperature heat-exchanging, it comprises heat exchanger body and import bobbin carriage, the front end of heat exchanger body is provided with the high-temperature flue gas import, the inlet tube case comprises casing and case, described casing is positioned at the place ahead of heat exchanger body, described casing has the high-temperature flue gas outlet of high-temperature flue gas entry and the import of contiguous heat exchanger body high-temperature flue gas, be provided with the gap between described heat exchanger body and the casing and heat exchanger body and casing are freely relatively moved, described case covers in the outside, gap, and packing has sealing material in the described case.
Compared with prior art, the utility model high-temperature heat-exchanging has following beneficial effect: by being provided with the gap between heat exchanger body and the casing, freely relatively move in the time of can making heat exchanger body and casing expanded by heating, thereby realize absorption, make reliable, the stable operation of high-temperature heat-exchanging thermal expansion.
[description of drawings]
Fig. 1 is the overall structure schematic side view of the specific embodiment of the utility model high-temperature heat-exchanging.
Fig. 2 is the part cross-sectional schematic of the import bobbin carriage of high-temperature heat-exchanging shown in Figure 1.
Fig. 3 is the schematic top view of the import bobbin carriage of high-temperature heat-exchanging shown in Figure 1.
Fig. 4 is the enlarged diagram of analysing and observe of circle I shown in Figure 3 place structure, the position relation of case and casing in its embodiment import bobbin carriage.
[specific embodiment]
See also Fig. 1 to shown in Figure 3, a kind of high-temperature heat-exchanging can be used in the color painted steel strip production line high-temperature flue gas being carried out heat recovery, and it comprises heat exchanger body 1 and import bobbin carriage 2.
Heat exchanger body 1 comprises base 3, high-temperature region heat exchanger 4, low-temperature space heat exchanger 5 and connects the intermediate connector 6 of high-temperature region heat exchanger 4 and low-temperature space heat exchanger 5, and the movable supporting mechanism 10 that is installed on base 3 upper support high-temperature region heat exchangers 4, low-temperature space heat exchanger 5 and intermediate connector 6.
The rear and front end of high-temperature region heat exchanger 4 and low-temperature space heat exchanger 5 these two sections heat exchangers is respectively equipped with tube sheet, be connected with heat exchanger tube between the tube sheet, the opening of corresponding heat exchanger tube is provided with perforate on the tube sheet, and wherein the employed material of the heat exchanger tube of high-temperature region heat exchanger 4 is more high temperature resistant than the employed material of the heat exchanger tube of low-temperature space heat exchanger 5.Zone between the described heat exchanger tube is called between pipe.Described intermediate connector 6 is connected together high-temperature region heat exchanger 4 and low-temperature space heat exchanger 5.Described intermediate connector 6 is connected with the heat exchanger tube of high-temperature region heat exchanger 4 and the heat exchanger tube of low-temperature space heat exchanger 5, but does not all communicate between the pipe of described intermediate connector 6 and high-temperature region heat exchanger 4 and low-temperature space heat exchanger 5.Intermediate connector 6 is provided with the expansion joint that absorbs thermal expansion with high-temperature region heat exchanger 4 junctions, offers the manhole of being convenient to keep in repair on the sidewall of intermediate connector 6.
The front end of above-mentioned high-temperature region heat exchanger 4 has the high-temperature flue gas import, the rear end of high-temperature region heat exchanger 4 is connected by expansion joint with the front end of intermediate connector 6, the top of described high-temperature region heat exchanger 4 is provided with the shell side outlet 11 that communicates between upward opening and pipe high-temperature region heat exchanger 4 near the high-temperature flue gas inlet side, and the top of described high-temperature region heat exchanger 4 is provided with the shell side top case 7 that communicates between pipe with high-temperature region heat exchanger 4 near intermediate connector 6 sides.
The front end of above-mentioned low-temperature space heat exchanger 5 is connected with the rear end of intermediate connector 6, the rear end of low-temperature space heat exchanger 5 has outlet bobbin carriage 8, outlet bobbin carriage 8 is provided with exhanst gas outlet, the top of described low-temperature space heat exchanger 5 is provided with the shell side import 9 that communicates between upward opening and pipe low-temperature space heat exchanger 5 near outlet bobbin carriage 8 sides, the top of described low-temperature space heat exchanger 5 is provided with the shell side top case 7 that communicates between pipe with low-temperature space heat exchanger 5 near intermediate connector 6 sides, and the shell side top case 7 of described low-temperature space heat exchanger 5 is connected with the shell side top case 7 of high-temperature region heat exchanger 4.
Between the pipe of above-mentioned shell side import 9, low-temperature space heat exchanger 5, between the pipe of shell side top case 7, high-temperature region heat exchanger 4 and shell side outlet 11 be communicated with and form the shell side passages.The heat exchanger tube of the heat exchanger tube of above-mentioned high-temperature region heat exchanger 4, intermediate connector 6 and low-temperature space heat exchanger 5 is communicated with formation tube side passage, and the high-temperature flue gas import of above-mentioned high-temperature region heat exchanger 4 is the high-temperature flue gas import of heat exchanger body 1.
Above-mentioned import bobbin carriage 2 comprises casing 20 and case 30, described casing 20 is positioned at the place ahead of heat exchanger body 1, the front end of described casing 20 has high-temperature flue gas entry, and the rear end of described casing 20 has the high-temperature flue gas outlet of the high-temperature flue gas import of contiguous heat exchanger body 1.Be provided with the gap between described heat exchanger body 1 and the casing 20 and heat exchanger body 1 and casing 20 are freely relatively moved.Described case 30 is the shaped as frame structure, described case 30 is fixed on the heat exchanger body 1 by modes such as bolt and nut connection or welding, described case 30 be positioned at heat exchanger body 1 the high-temperature flue gas import near, described case 30 extend forward casing 20 high-temperature flue gas outlet the outside and cover in outside the gap, described case 30 and casing 20 are not fixed together and can relatively move, thereby heat exchanger body 1 and case 30 are freely relatively moved with casing 20 together.Be provided with the space of 10mm to 50mm in this specific embodiment between case 30 and the casing 20.Packing has sealing material 40 with the above-mentioned gap of shutoff in the described case 30, and sealing material described in this specific embodiment is a kind of insulation material, can certainly be heat proof material or other material.Described casing 20 includes left and right sides plate 21, the end (top) plate 22, and described biside plate, base plate, top board surround the shaped as frame structure, and the front end side of being connected with of described shaped as frame structure connects circle 23.The front end that described side connects circle 23 is the high-temperature flue gas entry of casing 20, and the rear end of described shaped as frame structure is the high-temperature flue gas outlet of casing 20.Gap between described heat exchanger body 1 and the casing 20 is meant the front end tube sheet of high-temperature region heat exchanger 4 and the left side plate 21 of casing 20, the slit between the end (top) plate 22, packing has sealing material 40 in the described gap, sealing material described in this specific embodiment is a kind of insulation material, can certainly be heat proof material or other material.The inboard of described left and right sides plate 21, the end (top) plate 22 is welded with inner reinforced plate 201 respectively, and the outside of described left and right sides plate 21, the end (top) plate 22 is welded with outer gusset 210 respectively, and described inner reinforced plate 201 and outer gusset 210 can improve the structural strength of casing.Described side plate 21 is provided with the manhole of being convenient to keep in repair 211.Described side connects circle 23 front end and is provided with the flange 24 that is connected with the high-temperature flue gas outlet of the incinerator (not shown) of system.The high-temperature flue gas entry of described casing 20 is attached with the hold-down support 25 of supporting box 20, move with the restriction high-temperature heat-exchanging whole high-temperature flue gas Way out to incinerator in back that is heated, hold-down support 25 sides of being installed on connect round 23 below in this specific embodiment.The below of casing 20 is equipped with the roller support 26 of supporting box 20, so that casing 20 can expand to heat exchanger body 1 direction when being heated.The installed inside of described casing 20 has insulation material or the heat proof material of being fixed by inner reinforced plate 201.Described casing 20, case 30 materials can be carbon steel, stainless steel, titanium material and other metal material.Described insulation material can be ceramic fibre, alumina silicate fiber felt, alumina silicate fibre brick, refractory brick, refractory concrete etc.
When high-temperature heat-exchanging was worked, the high-temperature flue gas in the incinerator entered high-temperature heat-exchanging from the high-temperature flue gas entry of import bobbin carriage 2, and the import bobbin carriage 2 of flowing through successively, tube side passage, outlet bobbin carriage 8 are discharged from the exhanst gas outlet of outlet bobbin carriage 8; Extraneous fresh air injects the shell side passage by air blast through the shell side import 9 of low-temperature space heat exchanger 5, flow through between the pipe of low-temperature space heat exchanger 5 successively, between the pipe of shell side top case 7, high-temperature region heat exchanger 4, the spray booths (not shown) of discharging the system that enters from the shell side outlet 11 of high-temperature region heat exchanger 4 are used for spraying coating process.Fresh air and high-temperature flue gas are respectively after low-temperature space heat exchanger 5,4 heat exchange of high-temperature region heat exchanger in said process, (in fact fresh air and high-temperature flue gas are to carry out heat exchange by the heat exchanger tube tube wall), the fresh air temperature rises to about 600 ℃, to meet the requirement of spraying coating process, high-temperature flue gas drops to about 200 ℃ from about 800 ℃ of high-temperature flue gas entry, to reach the purpose that reclaims heat energy.
In the process of high-temperature heat-exchanging work, heat exchanger body 1 expands after being heated with casing 20, owing to be provided with the gap between heat exchanger body 1 and the casing 20, thereby heat exchanger body 1 and casing 20 are freely relatively moved, realization is to the absorption of thermal expansion, integral body reached stress balance after high-temperature heat-exchanging was heated, the overall swell increment of high-temperature heat-exchanging is gone to zero, thereby the improvement system causes occurring tube plate deformation because of thermal expansion, heat exchanger tube and tube sheet pull, phenomenons such as pipeline distortion, this hard nut to crack that influences the production of color coating line of thermal expansion is solved substantially, guarantee that heat exchanger has long-term stability and reliability.And because the setting of import bobbin carriage 2 goes to zero the overall swell increment of high-temperature heat-exchanging, thereby can cancel the expansion joint that need be arranged on the high-temperature flue gas import department of high-temperature region heat exchanger 4 originally, save the hundreds thousand of units of expansion joint acquisition expenses.
What more than introduce is preferred implementation of the present utility model, and in other embodiments, above-mentioned heat exchanger body 1 also can have the multistage heat exchanger or have only one section heat exchanger.Above-mentioned case 30 can be to be fixed in the outside of high-temperature flue gas outlet of casing 20 and the outside of the high-temperature flue gas import that covers in heat exchanger body of extending back, and not affixed and can relatively move between case 30 and the heat exchanger body 1.Described case 30 can be sheathed on the gap outside between heat exchanger body 1 and the casing 20 and all not affixed with heat exchanger body and casing 20.
Certainly the utility model is not limited in above-mentioned several embodiment, gives unnecessary details no longer one by one herein.
Claims (10)
1. high-temperature heat-exchanging, it comprises heat exchanger body and import bobbin carriage, the front end of heat exchanger body is provided with the high-temperature flue gas import, it is characterized in that: described inlet tube case comprises casing and case, described casing is positioned at the place ahead of heat exchanger body, described casing has the high-temperature flue gas outlet of high-temperature flue gas entry and the import of contiguous heat exchanger body high-temperature flue gas, be provided with the gap between described heat exchanger body and the casing and heat exchanger body and casing are freely relatively moved, described case covers in the outside, gap, and packing has sealing material in the described case.
2. high-temperature heat-exchanging as claimed in claim 1 is characterized in that: described case is fixed on one of heat exchanger body and casing.
3. high-temperature heat-exchanging as claimed in claim 1 is characterized in that: packing has sealing material in the described gap.
4. high-temperature heat-exchanging as claimed in claim 1 or 2 is characterized in that: described case is fixed on the heat exchanger body, and is not affixed and can relatively move between described case and the casing.
5. as claim 1 or 3 described high-temperature heat-exchangings, it is characterized in that: described sealing material is an insulation material.
6. high-temperature heat-exchanging as claimed in claim 1 is characterized in that: the below of described casing is equipped with the roller support of supporting box.
7. as claim 1 or 6 described high-temperature heat-exchangings, it is characterized in that: the high-temperature flue gas entry of described casing is attached with the hold-down support of supporting box.
8. high-temperature heat-exchanging as claimed in claim 1 is characterized in that: described casing comprises biside plate, base plate, top board, and described biside plate, base plate, top board surround the shaped as frame structure, and the front end side of being provided with of described shaped as frame structure connects circle.
9. as claim 1 or 8 described high-temperature heat-exchangings, it is characterized in that: described casing is provided with reinforcement and manhole.
10. high-temperature heat-exchanging as claimed in claim 1, it is characterized in that: described heat exchanger body comprises base, high-temperature region heat exchanger, low-temperature space heat exchanger and connects the intermediate connector of high-temperature region heat exchanger and low-temperature space heat exchanger, and the movable supporting mechanism that is installed on base upper support high-temperature region heat exchanger, low-temperature space heat exchanger and intermediate connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200779604U CN2861774Y (en) | 2005-11-22 | 2005-11-22 | High-temperature heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200779604U CN2861774Y (en) | 2005-11-22 | 2005-11-22 | High-temperature heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861774Y true CN2861774Y (en) | 2007-01-24 |
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ID=37659402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200779604U Expired - Fee Related CN2861774Y (en) | 2005-11-22 | 2005-11-22 | High-temperature heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861774Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
-
2005
- 2005-11-22 CN CNU2005200779604U patent/CN2861774Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan Sanwei Heat Exchanger Co., Ltd. Assignor: Gu Ansheng Contract fulfillment period: 2007.12.1 to 2013.11.30 Contract record no.: 2008320000323 Denomination of utility model: High temperature heat exchanger and its maintenance piece Granted publication date: 20070124 License type: Exclusive license Record date: 20080924 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.1 TO 2013.11.30 Name of requester: THREE-DIMENSIONAL HEAT EXCHANGER CO., LTD., KUNSH Effective date: 20080924 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20091222 |