CN205066155U - Desulfurization absorption tower warm braw heating device - Google Patents
Desulfurization absorption tower warm braw heating device Download PDFInfo
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- CN205066155U CN205066155U CN201520634515.7U CN201520634515U CN205066155U CN 205066155 U CN205066155 U CN 205066155U CN 201520634515 U CN201520634515 U CN 201520634515U CN 205066155 U CN205066155 U CN 205066155U
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Abstract
The utility model provides a desulfurization absorption tower warm braw heating device, including heat exchanger and heating pipe, axial fan is installed on the heat exchanger right side, and the left side is the tube -shape heating chamber of open air outlet, the heating pipe is got into by the heat exchanger peak, and coil at the heating intracavity in the middle section, and the tail end stretches out from the heat exchanger minimum, the part that the heating pipe coiled at the heating intracavity is equipped with radial fin, heating pipe parallel arrangement has a plurality of row, every unified the installation on entry distribution collection case of heating pipe entry, and the steam inlet of entry distribution collection case links to each other with supplementary steam header, and supplementary steam header communicates with each other with the steam that steam turbine final stage axle goes out, the utility model discloses use high -temperature steam heating transportation wind, heating temperature is adjustable, has avoided former direct method temperature with steam heating unstable, and the inside stable temperature in desulfurization absorption tower is guaranteed to the unmanageable defect.
Description
Technical field
The utility model relates to the tower internal corrosion prevention technology field of desulfuration absorbing tower, specifically for ensureing the heater of anticorrosion effective temperature.
Background technology
Desulfuration absorbing tower needs to carry out anticorrosive construction winter, and anticorrosion minimum temperature requires to control at about 5 DEG C, and winter minimum temperature is generally at subzero about 20 DEG C, and construction can affect the stability of anticorrosive coat at such temperatures, therefore needs to heat inside, absorption tower.Method is originally the steam directly to passing into higher temperature in tower, and this method can not ensure the safety of workmen and construction environment, so can not really reach requirement for anticorrosion object.
Utility model content
The present invention, for solving absorption tower winter construction potential safety hazard, the low problem affecting anticorrosive coat stability of temperature in tower, provides a kind of device to the heating of desulfuration absorbing tower inside, realizes particular by following technological means:
A kind of desulfuration absorbing tower warm braw heater, comprise heat exchanger and heating tube, be provided with axial flow blower on the right side of described heat exchanger, left side is the tubular heating chamber of open air outlet; Described heating tube is entered by heat exchanger peak, and stage casing is coiled in heating chamber, and tail end stretches out from heat exchanger minimum point; Heating tube passes into steam.
The described heating tube part be coiled in heating chamber is provided with radial fin.
Described heating tube is arranged with some row in parallel, and the unified entrance that is arranged on of every root heating tube entrance distributes in header.
The utility model is arranged on the manhole door of desulfuration absorbing tower, utilize and carry out heated transportation wind through post-decompression auxiliary vapour, draught temperature is adjustable, can well control the temperature in desulfuration absorbing tower, ensures anticorrosive construction personnel and the safety of construction environment and the stability of anticorrosive coat.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is heating tube amplification assumption diagram;
Fig. 3 is the utility model right side view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is illustrated:
Design philosophy of the present utility model carrys out heated transportation wind with the useless steam in unit, heats desulfuration absorbing tower internal environment with hot blast.And need a series of equipment just can complete to the heating of conveying wind.As shown in Figure 1, 2, 3, first need one steam can be used to form the heat exchanger 1 of heat exchange with conveying wind, the tubular structure of this heat exchanger 1 both ends open, a middle formation heating chamber 12.On the right air port 13 of heat exchanger 1, installation shaft flow fan 6 is for air-supply, and left side is open air outlet 11.
Bring steam heat into heating chamber 12 inner heating tube 2 in addition, it is inner that this heating tube 2 is coiled in described heating chamber 12, and distribute heat in heating chamber, forms heat exchange with the conveying wind flow through in heat exchanger 1.
Heating steam adopts turbine final stage auxiliary steam, in order to reduce the use of energy waste and control steam, final stage steam does not directly flow to heating tube 2, and the auxiliary steam that steam turbine last stage is extracted out needs just can tap into the heating of heating tube for heat exchanger through decompression.Pressure regulating equipment can use auxiliary steam header 5, reaches the steam input heating tube 2 of 300 DEG C and 1.2MPa through auxiliary steam header 5 decompression.The auxiliary steam that auxiliary steam header 5 is extracted out with steam turbine last stage is connected, and the air intake of heating tube 2 is connected with auxiliary steam header 5.
Because steam can produce condensation in addition after exchange heat, the waste water produced after exchange heat to be beneficial to pipe interior medium is discharged, and heating tube entrance should be arranged in the peak of heat exchanger, and heating tube outlet is arranged in the minimum point of heat exchanger.Steam condensation also not exclusively, must also have a small amount of steam to exist, and has a small amount of steam along with waste water discharge so export to draw in drain water piping at the heating tube of minimum point.
In order to reduce the volume of this warm braw heater and save cost of manufacture raising heat exchange efficiency, coil and be provided with radial fin 22 in the heating tube stage casing 21 of heat exchanger 1 inside, steam carries out exchange heat by tube wall and fin 22 with the Cryogenic air flowing through heating chamber 12.
Described heating tube 2 can be set up in parallel 2 rows or more, the utility model applies 18 row's heating tubes when concrete making, the unified entrance that is arranged on of 18 row two circle coiled pipe distributes in header 3, entrance distributes header 3 and is connected with auxiliary steam header 5 as the co-portal of heating tube, and that distributes that header 3 evenly respectively arranges heating tube by entrance send vapour.Corresponding heating tube exit position is also provided with outlet and distributes header 7, and unified management heating tube discharges waste water.
Steam trend in heating tube 2 move towards preferably in counter-flow arrangement with the air-supply of heat exchanger 1, and Cryogenic air is blown into coils in the heating chamber 12 of heating tube, and the heat of absorption tube wall and fin 22 becomes hot blast and is blown into desulfuration absorbing tower finally by the air outlet 11 in left side.
This heater is arranged on the manhole door of desulfuration absorbing tower, and temperature is low in the winter time, uses when affecting anticorrosive coat stability.Being blown into adding hot blast temperature and can control by regulating the flow of steam in heating tube in desulfuration absorbing tower, both controlling the flow of steam by carrying out mounted valve 4 aperture on steam pipe road between auxiliary steam header and heating tube entrance.
The utility model adopts warm braw mode of heating to desulfuration absorbing tower heating, heating energy source directly refer to the byproduct steam that unit operation produces, without the need to extra energy ezpenditure, heating-up temperature is adjustable, avoid former direct steam heated method temperature unstable, unmanageable defect, ensures the temperature of desulfuration absorbing tower internal stability.
Claims (3)
1. a desulfuration absorbing tower warm braw heater, is characterized in that: comprise heat exchanger and heating tube, is provided with axial flow blower on the right side of described heat exchanger, and left side is the tubular heating chamber of open air outlet; Described heating tube is entered by heat exchanger peak, and stage casing is coiled in heating chamber, and tail end stretches out from heat exchanger minimum point; Heating tube passes into steam.
2. desulfuration absorbing tower warm braw heater as claimed in claim 1, is characterized in that: the described heating tube part be coiled in heating chamber is provided with radial fin.
3. desulfuration absorbing tower warm braw heater as claimed in claim 2, is characterized in that: described heating tube is arranged with some row in parallel, and the unified entrance that is arranged on of every root heating tube entrance distributes in header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634515.7U CN205066155U (en) | 2015-08-21 | 2015-08-21 | Desulfurization absorption tower warm braw heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634515.7U CN205066155U (en) | 2015-08-21 | 2015-08-21 | Desulfurization absorption tower warm braw heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066155U true CN205066155U (en) | 2016-03-02 |
Family
ID=55392703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520634515.7U Active CN205066155U (en) | 2015-08-21 | 2015-08-21 | Desulfurization absorption tower warm braw heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066155U (en) |
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2015
- 2015-08-21 CN CN201520634515.7U patent/CN205066155U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |