CN202048820U - Special heat exchanger for blast furnace slag flushing water - Google Patents
Special heat exchanger for blast furnace slag flushing water Download PDFInfo
- Publication number
- CN202048820U CN202048820U CN2011201320672U CN201120132067U CN202048820U CN 202048820 U CN202048820 U CN 202048820U CN 2011201320672 U CN2011201320672 U CN 2011201320672U CN 201120132067 U CN201120132067 U CN 201120132067U CN 202048820 U CN202048820 U CN 202048820U
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- heat exchanger
- tube
- blast furnace
- spiral flat
- furnace slag
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Abstract
The utility model discloses a special heat exchanger for blast furnace slag flushing water, which comprises a tube box, a casing and a tube bundle mounted in the casing. Two ends of the tube bundle are mounted on a tube plate; the tube bundle is fixedly connected with the casing through the tube plate; and the tube bundle includes arrayed spiral flat tubes for mutual support. Baffle plates of a shell side of a traditional shell-and-tube heat exchanger are omitted, the heat exchange tubes are arrayed for mutual support, a tube side and a shell side are in spiral flow by the aid of the unique structure of the spiral flat tubes, turbulence degree is promoted, the heat transfer efficiency of each pressure drop unit is increased greatly by 40% under the condition of the same pressure drop, the slag flushing water spirally flows in the spiral flat tubes, and the special heat exchanger is not easy to block. As the baffle plates of the shell side are omitted, no flow dead zone is formed in the heat exchanger, and deposition of dirt is reduced.
Description
Technical field
The utility model relates to the heat exchanger that a kind of flushing cinder water that is used for the cooling of steel industry high temperature furnace slag cools.Be the special-purpose heat exchanger of a kind of blast furnace slag quenching water specifically.Make full use of the waste heat of blast furnace slag quenching water, avoided the obstruction of heat exchanger tube.
Background technology
Steel industry produces a large amount of waste heat complementary energy aborning.The recovery of high-temperature residual heat comes into one's own easily, and major part has obtained reclaiming in present energy-saving and cost-reducing technological transformation; But low temperature exhaust heat is often out in the cold, and the waste heat as blast furnace slag quenching water is wasted mostly.How realizing the UTILIZATION OF VESIDUAL HEAT IN of blast furnace slag quenching water, is an energy-conservation problem that is significant.
The blast furnace slag flushing pond is a least significant end technology in the smelting process, and a large amount of high temperature furnace slags that produce behind the blast furnace ironmaking cool off by flushing cinder water, can produce big amount temperature in this process at 70 ~ 85 ℃ hot water.Usually, in order to guarantee the recycling effect of flushing cinder water, this part flushing cinder water need be introduced air cooling tower behind sedimentation and filtration, cool to the flushing cinder that circulates once more below 50 ℃, or carry out nature cooling back and continue the circulation flushing cinder, a large amount of heats is wasted, and has both caused the waste of the energy, again environment has been caused thermal pollution.
The blast furnace granulated slag main component is CaO, SiO2, MgO, Al2O3 and a spot of Fe2O3, and the pH value shows slightly alkalescence greater than 7.Grain slag impurity exists with the form of solid particle or suspension in flushing cinder water; accumulate over a long period; impurity will make pipeline, valve, the alluvial of radiator occurrence of large-area, the obstruction in the heating system; so blast furnace slag quenching water is unsuitable for direct use as the heating thermal source, be to utilize the flushing cinder hydromining to warm up or do the primary direction of bathing pool water and utilize the heat of flushing cinder water by the form of indirect heat exchange.
At present, when utilization was carried out heating heat-exchange except that pulp water as thermal source, some equipment producers often adopted traditional shell-and-tube heat exchanger or spiral plate type heat exchange.Clogging will occur in very short time in the practical application, impurity and filiform harden between heat exchanger tube or plate in the water, can't dredge, and can only scrap.
Summary of the invention
In view of above-mentioned present situation, the purpose of this utility model provides the special-purpose heat exchanger of a kind of blast furnace slag quenching water, by improving the flow velocity and the fluidised form of blast furnace slag quenching water in the heat exchanger, thereby has reduced the generation of dirt, has avoided the obstruction of heat exchanger tube.
For achieving the above object, technical solution of the present utility model is: the special-purpose heat exchanger of a kind of blast furnace slag quenching water comprises bobbin carriage, housing and is installed in the interior tube bank of housing that the two ends of described tube bank are installed on the tube sheet, fixedly connected with housing by tube sheet; Wherein said tube bank is a spiral flat tube, supports mutually by the spiral flat tube of arranging.
Therefore, on the one hand, use spiral flat tube as heat exchange element, its pipe inner flow passage is shape in the shape of a spiral, and the arrangement compactness of spiral flat tube in housing, cancelled the deflection plate of traditional shell-and-tube heat exchanger shell side, kept the contact of helix point to reduce heat exchanger volume and to increase the flowing space of fluid between pipe by the adjacent heat exchange tubes outer rim; The spiral flat tube two ends are round tubes, make things convenient for being connected of spiral flat tube and tube sheet.On the other hand, because the application of spiral flat tube, make the complications of shell side medium flow and become flowing of direct spiral, increased the heat transference efficiency that unit falls in each pressure greatly; Cancelled the deflection plate of shell side, heat exchanger does not have flow dead, has reduced the deposition of dirt.On the one hand, heat exchanger with oblate tube side medium is spinned mobile, compares with traditional heat exchanger again, and under the situation of same pressure drop, heat exchanger with oblate greatly reduces heat transfer area, and heat transfer efficiency is greatly improved.Because spiral flat tube has changed the flow behavior of fluid, improved the turbulent extent of fluid, show that heat exchanger with oblate has stronger resistive connection dirt ability.
According to above-mentioned characteristics, the cross section of related spiral flat tube is oval, helps the arrangement in the spiral flat tube housing very compact like this; The pitch of spiral flat tube is not subjected to the restriction of caliber, wall thickness, material.
Further, the two ends of described spiral flat tube are round tube, being connected of convenient and tube sheet, sealing.
In a word, the effect that the utlity model has is:
1, the heat exchange efficiency height is embodied on the heat exchange area.With 1600 kw heating thermic loads is example, originally removes the special-purpose heat exchanger of pulp water and needs 150 ㎡ (it is standby to contain maintenance), and spiral heat exchanger is then wanted 420 ㎡, and the consideration maintenance is standby then to need two.
2, the equipment profile is little, heat exchange station floor space and highly all less than other forms of heat exchanger.Above-mentioned to remove the special-purpose heat exchanger profile of pulp water Φ 600x5000x2000(horizontal).And spiral heat exchanger separate unit profile 3500x6000(is vertical), 2 need to take up an area of Φ 3500x10000x6000(height).
3 do not stop up.Remove the important feature of the special-purpose heat exchanger of pulp water and used spiral flat tube exactly, in spiral flat tube, make helical form except that pulp water and flow, formed not susceptible to plugging characteristic as heat exchange element.Remove the special-purpose heat exchanger of pulp water in addition and also can be used in combination, avoid removing the thread suspension of pulp water and stop up heat exchanger with the washer automatic sewage discharging device that is equipped with.If clogging occurs, can discharge by cleaning mechanism removing gambling plug thing and by sewage draining exit.
4 investment payback times are short.Utilize the waste heat heating of flushing cinder water, a heating phase is a recoverable cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is further described.
See the special-purpose heat exchanger of blast furnace slag quenching water shown in Figure 1, comprise shell body 1, arrange the tube bank that spiral flat tube 2 is installed in described shell body 1, the two ends of this spiral flat tube 2 are round tubes, the two ends of its spiral flat tube 2 are installed on the tube sheet 3, fixedly connected with shell body 1 by tube sheet 3.In the present embodiment, the cross section of described spiral flat tube 2 is oval, helps the arrangement compactness of spiral flat tube 2 in shell body 1.
In the foregoing description, the heat exchanger with oblate of indication is a single applying unit, and vertical and horizontal two kinds of structural shapes are arranged.In addition, also can design modular flushing cinder water-to-water heat exchanger according to instructions for use.The machine made heat exchanger of forming by the special-purpose heat exchanger of flushing cinder water, as being a module with 1600 KW heating thermic loads, each module is made up of the special-purpose heat exchanger of 2 flushing cinder water, two heat exchangers are worked simultaneously during normal the operation, to greatest extent flushing cinder hydro-thermal amount is passed to heating water, guarantee the heating supply water temperature; Heating just, latter stage or heat exchanger can use separately again when safeguarding, to guarantee the normal operation of heating phase heat-exchange system.
The application that this is novel, when spiral flat tube 2 was arranged in shell body 1, no matter each spiral flat tube 2 was in which direction or angle, and it must be consistent to each other.
In addition, it is also conceivable that in application to be provided with cleaning mechanism on bobbin carriage that in case impurity enters heat exchanger, the especially gathering of thread suspension in the flushing cinder water easily makes heat exchanger gambling plug, cleaning mechanism can be removed gambling plug thing and discharge by sewage draining exit.Described cleaning mechanism can adopt the method for conventional processing pipeline.
Claims (3)
1. the special-purpose heat exchanger of blast furnace slag quenching water comprises bobbin carriage, housing and is installed in the interior tube bank of housing, and the two ends of described tube bank are installed on the tube sheet, fixedly connected with housing by tube sheet; Cancel the deflection plate of traditional shell-and-tube heat exchanger shell side, heat exchanger tube supports mutually by arranging.It is characterized in that described tube bank is spiral flat tube (2), support mutually by the spiral flat tube (2) of arranging.
2. the special-purpose heat exchanger of blast furnace slag quenching water according to claim 1 is characterized in that the cross section of described spiral flat tube (2) is oval.
3. the special-purpose heat exchanger of blast furnace slag quenching water according to claim 1 is characterized in that the two ends of described spiral flat tube (2) are round tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201320672U CN202048820U (en) | 2011-04-29 | 2011-04-29 | Special heat exchanger for blast furnace slag flushing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201320672U CN202048820U (en) | 2011-04-29 | 2011-04-29 | Special heat exchanger for blast furnace slag flushing water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048820U true CN202048820U (en) | 2011-11-23 |
Family
ID=44989127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201320672U Expired - Fee Related CN202048820U (en) | 2011-04-29 | 2011-04-29 | Special heat exchanger for blast furnace slag flushing water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185362A (en) * | 2012-10-08 | 2013-07-03 | 哈尔滨工大金涛科技股份有限公司 | Low-position straight heating machine |
| CN111059927A (en) * | 2020-01-02 | 2020-04-24 | 沈阳工程学院 | Baffle-free heat exchanger with aluminum porous surface and oval spiral flat tubes |
-
2011
- 2011-04-29 CN CN2011201320672U patent/CN202048820U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185362A (en) * | 2012-10-08 | 2013-07-03 | 哈尔滨工大金涛科技股份有限公司 | Low-position straight heating machine |
| CN103185362B (en) * | 2012-10-08 | 2016-03-23 | 哈尔滨工大金涛科技股份有限公司 | Low level directly-heated machine |
| CN111059927A (en) * | 2020-01-02 | 2020-04-24 | 沈阳工程学院 | Baffle-free heat exchanger with aluminum porous surface and oval spiral flat tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINHUANGDAO TONGLIDA ENVIRONMENTAL PROTECTION ENER Free format text: FORMER OWNER: QINHUANGDAO TONGLIDA CHEMICAL INDUSTRY MECHANICAL CO., LTD. Effective date: 20150909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150909 Address after: 066004 No. 8 Jinshan North Road, Qinhuangdao economic and Technological Development Zone, Hebei, China Patentee after: Qinhuangdao TONGLIDA Environmental Energy Engineering Co., Ltd. Address before: 066004 No. 8 Jinshan North Road, Qinhuangdao economic and Technological Development Zone, Hebei, China Patentee before: Qinhuangdao Tonglida Chemical Industry Mechanical Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 066004 No. 8 Jinshan North Road, Qinhuangdao economic and Technological Development Zone, Hebei, China Patentee after: QINHUANGDAO TONGLIDA ENVIRONMENTAL ENERGY CORP. Address before: 066004 No. 8 Jinshan North Road, Qinhuangdao economic and Technological Development Zone, Hebei, China Patentee before: Qinhuangdao TONGLIDA Environmental Energy Engineering Co., Ltd. |
|
| 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: 20111123 Termination date: 20200429 |