CN201962263U - Coal gas primary cooler for realizing heat exchange between raw coke oven gas and desulfurization solution - Google Patents
Coal gas primary cooler for realizing heat exchange between raw coke oven gas and desulfurization solution Download PDFInfo
- Publication number
- CN201962263U CN201962263U CN2011200099875U CN201120009987U CN201962263U CN 201962263 U CN201962263 U CN 201962263U CN 2011200099875 U CN2011200099875 U CN 2011200099875U CN 201120009987 U CN201120009987 U CN 201120009987U CN 201962263 U CN201962263 U CN 201962263U
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- China
- Prior art keywords
- heat exchange
- primary cooler
- tube
- coal gas
- coke oven
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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 - Lifetime
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a coal gas primary cooler for realizing heat exchange between raw coke oven gas and a desulfurization solution. The coal gas primary cooler is characterized in that: a desulfurization solution medium led out of the tower bottom of a desulfurization tower exists in a tube pass heat exchange tube of the primary cooler; a raw coke oven gas heat source exists in the shell pass of the primary cooler; the heat exchange tube is a transverse groove heat exchange tube; the outer wall of the tube is provided with a plurality of grooves vertical to the axis of a circular tube; and the inside of the tube has a protruding circular rib structure. Compared with the prior art, the coal gas primary cooler has the advantages that: equipment such as a reboiler and the like special for heating the desulfurization solution is eliminated, the investment is reduced, the energy is effectively saved, and the running cost is lowered. The transverse groove heat exchange tube is taken as a major heat exchange element, so that the heat transfer efficiency is improved.
Description
Technical field
The utility model relates to a kind of coking, chemical industry equipment, the particularly a kind of raw gas in the vacuum carbonation coal gas desulfurization technology and coal gas primary cooler of doctor solution heat exchange of being applied to.
Background technology
Traditional primary cooler epimere tube side adopts is raw gas heat exchange in heating water or recirculated water and the shell side, but the temperature of raw gas before entering primary cooler generally can reach about 80 ℃, afterwards at the primary cooler internal cooling after certain temperature, be sent to next process.The heat of raw gas is not fully effectively utilized during this heat exchange.
And the desulfurization rich solution in the against vacuum carbonation sulfur removal technology is resolved, and its thermal source that needs is the hot-fluid more than 70 ℃.No matter be to adopt steam heating, still with the modes such as cyclic ammonia water heating of coke oven, all exist working cost big, invest high weak point.
Heat if the raw gas thermal source is used for the doctor solution of vacuum carbonation sulfur removal technology, will effectively solve the waste problem of raw gas thermal source, and reduced the running cost of doctor solution heating in the prior art effectively.
Summary of the invention
The purpose of this utility model provides a kind of coal gas primary cooler of realizing raw gas and doctor solution heat exchange, this device is resolved thermal source with the heat of raw gas as doctor solution, not only solve the waste problem of raw gas thermal source, and reduced the running cost that doctor solution is resolved in the prior art.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of coal gas primary cooler of realizing raw gas and doctor solution heat exchange is the doctor solution medium of drawing at the bottom of the desulfurization Tata in the primary cooler tube side heat transfer tube, is the raw gas thermal source in the primary cooler shell side.
Described heat transfer tube adopts the translot heat transfer tube, and its structure is to be provided with a plurality of and the groove pipe axis normal at the pipe outer wall, is the ring rib structure of projection in pipe.
Compared with prior art, the beneficial effects of the utility model are:
1) this device has not only saved the equipment such as reboiler of heating doctor solution special use, has reduced investment, and has saved the energy effectively, has reduced running cost.
2) adopt the translot heat transfer tube as main heat exchange element, increased heat transfer efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of translot heat transfer tube.
Among the figure: 1-heat transfer tube 2-tube sheet 3-bobbin carriage
4-pad 5-doctor solution inlet 6-doctor solution outlet 7-groove 8-ring rib
Embodiment
Below in conjunction with embodiment the utility model is further described.
See Fig. 1, a kind of coal gas primary cooler of realizing raw gas and doctor solution heat exchange, shell side raw gas passage, doctor solution inlet 5, the doctor solution outlet 6 of comprise primary cooler tube side heat transfer tube 1, tube sheet 2, primary cooler bobbin carriage 3, bobbin carriage pad 4, be positioned at primary cooler bobbin carriage 3, heat transfer tube 1 is outer.
The doctor solution that this device is drawn at the bottom of with the desulfurization Tata is as the tube side medium of coal gas primary cooler epimere, carries out heat exchange with raw gas in the primary cooler shell side.Doctor solution, is flowed out by the top bobbin carriage doctor solution outlet 6 of this section interchanger behind the raw gas countercurrent flow from interchanger doctor solution inlet 5 inflows of bobbin carriage bottom; Doctor solution after the heat exchange can be sent regenerator column back to, for the parsing of rich solution in the regenerator column provides thermal source.
In this primary cooler, heat transfer tube 1, tube sheet 2, bobbin carriage 3 etc. all adopt stainless steel 06Cr19Ni10 to make with parts that doctor solution directly contacts, and wherein bobbin carriage pad 4 adopts the banded pad of the expanded PTFE of AIG183-.
Heat transfer tube can adopt the translot heat transfer tube as heat exchange element.The method for making of translot heat transfer tube is: go out groove 7 with axis normal in common circular tube external wall rolling, form ring rib 8 structures of enclosing projection simultaneously in pipe.When tube fluid is flowed through transverse ring 8, form axial whirlpool near the tube wall, increased the disturbance in frictional belt, make separation of boundary layer, help the transmission of heat.Fluid passes through another transverse ring again when whirlpool will disappear.Therefore constantly produce eddy current, thereby kept stable strengthening effect.The translot heat transfer tube has the effect of two-sided strengthened heat exchange, can increase the heat interchanging area of heat transfer tube self effectively, enlarges markedly heat transfer efficiency, is applied to the cost that primary cooler can reduce heat exchanger volume and equipment self significantly.
Claims (2)
1. a coal gas primary cooler of realizing raw gas and doctor solution heat exchange is characterized in that, is the doctor solution medium of drawing at the bottom of the desulfurization Tata in the primary cooler tube side heat transfer tube, is the raw gas thermal source in the primary cooler shell side.
2. a kind of coal gas primary cooler of realizing raw gas and doctor solution heat exchange according to claim 1, it is characterized in that, described heat transfer tube adopts the translot heat transfer tube, and its structure is to be provided with a plurality of and the groove pipe axis normal at the pipe outer wall, is the ring rib structure of projection in pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200099875U CN201962263U (en) | 2011-01-13 | 2011-01-13 | Coal gas primary cooler for realizing heat exchange between raw coke oven gas and desulfurization solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200099875U CN201962263U (en) | 2011-01-13 | 2011-01-13 | Coal gas primary cooler for realizing heat exchange between raw coke oven gas and desulfurization solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201962263U true CN201962263U (en) | 2011-09-07 |
Family
ID=44524797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200099875U Expired - Lifetime CN201962263U (en) | 2011-01-13 | 2011-01-13 | Coal gas primary cooler for realizing heat exchange between raw coke oven gas and desulfurization solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201962263U (en) |
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2011
- 2011-01-13 CN CN2011200099875U patent/CN201962263U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |