CN208008726U - A kind of cooling system before asphalt moulding - Google Patents
A kind of cooling system before asphalt moulding Download PDFInfo
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- CN208008726U CN208008726U CN201820143736.8U CN201820143736U CN208008726U CN 208008726 U CN208008726 U CN 208008726U CN 201820143736 U CN201820143736 U CN 201820143736U CN 208008726 U CN208008726 U CN 208008726U
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- condensate
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- falling film
- asphalt
- steam
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Abstract
The utility model is related to the cooling systems before a kind of asphalt moulding, including falling film cooler, steam air cooler, condensate drum and condensate pump；Falling film cooler top tube-side inlet is connected with high-temperature liquid state asphalt delivery pipeline, and tube side outlet in lower part is connected by low temperature hydraulic pressure asphalt delivery pipeline with asphalt moulding device；The low steam inlet of the shell-side outlet connection steam air cooler of falling film cooler, the condensate inlet of the condensate outlet connection condensate drum of steam air cooler；The condensate outlet of condensate drum connects the shell side inlet of falling film cooler by condensate liquid conveyance conduit, and condensate pump is set on condensate liquid conveyance conduit.Falling film cooler is combined with steam air cooler and realizes the air-cooled of pitch by the utility model, does not have recirculated water in cooling system, so as to avoid the drawbacks of circulating water, being used particularly suitable for cold district under specific condition.
Description
Technical field
The utility model is related to the cooling systems before asphalt moulding technical field more particularly to a kind of asphalt moulding.
Background technology
Currently, the type of cooling before coking industry asphalt moulding mainly has following three kinds：
The first is the natural type of cooling, i.e. pitch is first sent to asphalt high-level tank before removing molding machine, when stopping one section
Between, the temperature requirement before molding is reached, then flows automatically again or is pumped into asphalt moulding device.
Second is the water-cooling pattern for using vaporization and condensation cooler, i.e. pitch is first sent to vaporization before removing molding machine
Condensate cooler exchanges heat to the temperature of needs with steam condensate in vaporization and condensation cooler, then flows automatically or be pumped into again
Asphalt moulding device, and after the steam condensate after vaporizing is by circulating cooling water cooling, then it flow back into vaporization and condensation cooler.
The third is the water-cooling pattern using falling film cooler, i.e. pitch is first sent to falling liquid film cooling before removing molding machine
Device exchanges heat to the temperature of needs with steam condensate in falling film cooler, is then sent to asphalt moulding device with nitrogen, and
Steam condensate after vaporization is after steam condenser is by circulating cooling water cooling, then flow back into falling film cooler.
In the three of the above type of cooling, the first the natural type of cooling is long there are cooling time, takes up a large area, and diffuses
The shortcomings that bitumen flue gas bad processing；Second and the third type of cooling belong to water-cooling pattern, and floor space is small, is to work as
Preceding Major Cooling Methods.But in extremely frigid zones, circulating water mode is simultaneously not suitable for, when the bad control of cooling temperature, two
It is that recirculated water is easy to freeze, therefore enterprise is often reluctant to use circulating water mode.
Therefore, there is an urgent need to design the cooling before being suitable for extremely frigid zones asphalt moulding for metallurgical coking industry domestic at present
New Method for Processing.
Invention content
The utility model provides the cooling system before a kind of asphalt moulding, and falling film cooler and steam air cooler are carried out
The air-cooled of pitch is realized in combination, does not have recirculated water in cooling system, so as to avoid under specific condition the drawbacks of circulating water,
It is used particularly suitable for cold district.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of cooling system before asphalt moulding, including falling film cooler, steam air cooler, condensate drum and condensate liquid
Pump；Falling film cooler top tube-side inlet is connected with high-temperature liquid state asphalt delivery pipeline, and tube side outlet in lower part passes through low temperature
Hydraulic pressure asphalt delivery pipeline is connected with asphalt moulding device；The low steam of the shell-side outlet connection steam air cooler of falling film cooler
Entrance, the condensate inlet of the condensate outlet connection condensate drum of steam air cooler；The condensate outlet of condensate drum passes through
Condensate liquid conveyance conduit connects the shell side inlet of falling film cooler, and condensate pump is set on condensate liquid conveyance conduit.
It is additionally provided with steam generator on the liquid bitumen conveyance conduit of the falling film cooler upstream.
The condensate drum is equipped with soft water supply port, and soft water supply port connects steam generator by feedwater piping.
Compared with prior art, the utility model has the beneficial effects that：
Falling film cooler is combined with steam air cooler and realizes the air-cooled of pitch, does not have recirculated water in cooling system,
So as to avoid under specific condition the drawbacks of circulating water, used particularly suitable for cold district.
Description of the drawings
Fig. 1 is the structural schematic diagram of the cooling system before a kind of asphalt moulding described in the utility model.
In figure：1. 2. steam air cooler of falling film cooler, 3. condensate drum, 4. condensate pump
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, the cooling system before a kind of asphalt moulding described in the utility model, including falling film cooler 1, steam
Air cooler 2, condensate drum 3 and condensate pump 4；1 top tube-side inlet of the falling film cooler and high-temperature liquid state asphalt delivery pipe
Road is connected, and tube side outlet in lower part is connected by low temperature hydraulic pressure asphalt delivery pipeline with asphalt moulding device；The shell of falling film cooler 1
The low steam inlet of journey outlet connection steam air cooler 2, the condensation of the condensate outlet connection condensate drum 3 of steam air cooler 2
Liquid entrance；The condensate outlet of condensate drum 3 connects the shell side inlet of falling film cooler 1, condensation by condensate liquid conveyance conduit
Condensate pump 4 is set on liquid conveyance conduit.
It is additionally provided with steam generator on the liquid bitumen conveyance conduit of 1 upstream of the falling film cooler.
The condensate drum 3 is equipped with soft water supply port, and soft water supply port connects steam generator by feedwater piping.
Technical process using the cooling system before a kind of asphalt moulding described in the utility model is as follows：
1) after steam generator tentatively recycles heat, temperature be that 250 DEG C or more of liquid bitumen enters falling liquid film cooling
Device 1, in falling film cooler 1, liquid bitumen flows from above to below, and exchanges heat with steam condensate, and liquid bitumen cools to
After 150 DEG C or less, sent under nitrogen pressurization to follow-up asphalt moulding device；
2) steam condensate after exchanging heat is heated to be low-pressure steam, and low-pressure steam enters steam air cooler 2, shape after cooling
At steam condensate enter condensate drum 3；
3) by condensate pump 4 by condensate drum 3 steam condensate be sent into falling film cooler 1 in liquid bitumen into
Row heat exchange；
4) above-mentioned steps 1)-step 3) cycle carries out, realizes in falling film cooler 1 to the circulating cooling of liquid bitumen,
3 regular replenishment soft water of condensate drum.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (3)
1. the cooling system before a kind of asphalt moulding, which is characterized in that including falling film cooler, steam air cooler, condensate drum
And condensate pump；Falling film cooler top tube-side inlet is connected with high-temperature liquid state asphalt delivery pipeline, the outlet of lower part tube side
It is connected with asphalt moulding device by low temperature hydraulic pressure asphalt delivery pipeline；The shell-side outlet of falling film cooler connects steam air cooler
Low steam inlet, steam air cooler condensate outlet connection condensate drum condensate inlet；The condensate liquid of condensate drum
Outlet connects the shell side inlet of falling film cooler by condensate liquid conveyance conduit, and condensate pump is set on condensate liquid conveyance conduit.
2. the cooling system before a kind of asphalt moulding according to claim 1, which is characterized in that on the falling film cooler
It is additionally provided with steam generator on the liquid bitumen conveyance conduit of trip.
3. the cooling system before a kind of asphalt moulding according to claim 1, which is characterized in that set on the condensate drum
There are soft water supply port, soft water supply port to connect steam generator by feedwater piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820143736.8U CN208008726U (en) | 2018-01-29 | 2018-01-29 | A kind of cooling system before asphalt moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820143736.8U CN208008726U (en) | 2018-01-29 | 2018-01-29 | A kind of cooling system before asphalt moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208008726U true CN208008726U (en) | 2018-10-26 |
Family
ID=63884597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820143736.8U Active CN208008726U (en) | 2018-01-29 | 2018-01-29 | A kind of cooling system before asphalt moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208008726U (en) |
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2018
- 2018-01-29 CN CN201820143736.8U patent/CN208008726U/en active Active
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