CN104061560A - Method for utilizing the waste heat of steam condensed water of biphenol A device - Google Patents
Method for utilizing the waste heat of steam condensed water of biphenol A device Download PDFInfo
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- CN104061560A CN104061560A CN201410311314.3A CN201410311314A CN104061560A CN 104061560 A CN104061560 A CN 104061560A CN 201410311314 A CN201410311314 A CN 201410311314A CN 104061560 A CN104061560 A CN 104061560A
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Abstract
The invention discloses a method for utilizing waste heat of steam condensed water of a biphenol A device. The method comprises the following steps of feeding the condensed water produced by the biphenol A device into a condensed water flash evaporation tank, connecting an electric three-way reversing valve onto a steam pipeline on the top of the condensed water flash evaporation tank, connecting the other end of a three-way valve on the top of the condensed water tank onto a cooler, and cooling the steam by utilizing the cool water; flash evaporating the condensed water of high pressure grade through a multi-nozzle pressure matching device under the injection pushing of the high-pressure steam, and recycling the steam of low pressure. The condensed water waste heat recycling device is less in one-time investment, high in reliability, obvious in investment profit, short in investment recovery period and a good method for reducing the biphenol A manufacturing cost and improving the heat utilization rate.
Description
Technical field
The present invention relates to a kind of method of carrying out UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water.
Background technology
In bisphenol-A is produced, the quantity of steam consuming in raw materials recovery and product purification process is large, the condensate flow producing is many, in cost of goods manufactured, account for absolute important proportion, for reducing the manufacturing cost of product, improve the competitiveness of product, each bisphenol-A manufacturer continues to carry out transformation and the Optimization Work of technology, and the heat recovery of the solidifying water that steam is produced is also an important conservation measures.
Summary of the invention
What the object of the present invention is to provide and a kind ofly save bisphenol-A manufacturing cost, improve heat utilization rate carries out the method for UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water.
Technical solution of the present invention is:
A kind of method of carrying out UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water, it is characterized in that: the solidifying water that bisphenol A device is produced is sent into solidifying water flash tank, on the gas pipeline of solidifying water flash drum overhead, connect an electric three passes reversal valve, the other end of the triple valve that solidifying water pot top connects is connected to cooler, by water quench;
Under normal circumstances, flash-off steam in solidifying water flash tank enters multiinjector pressure matcher by triple valve, this pressure matcher is using high-grade steam as injection source, spray under promotion at high-grade steam, pressure in solidifying water flash tank is because causing solidifying water flash distillation to produce low-grade steam lower than the saturation pressure under solidifying coolant-temperature gage, solidifying water is vaporized, the temperature of solidifying water is reduced to the saturation temperature under this controlled pressure simultaneously, low-grade flash-off steam is under high-grade uperize sprays, mix with high-grade uperize, forming bisphenol A device needs the steam of pressure rating,
In the time there is the pressure that flash-off steam pressure is set higher than flash tank, flash-off steam enters cooler, and by after cooling water cooling, flash-off steam is condensed, and is connected to atmospheric pressure state with atmosphere.
By 0.5Mpa(a) steam condensation water sends into flash-off steam tank, the pressure of flash-off steam tank is controlled to 0.25 Mpa(a), using 2.0 Mpa(a) high level of pressure steam as uperize, can produce 0.25 more than 2t/h flow Mpa(a from flash tank) flash-off steam, this steam and 2.0 Mpa(a) high level of pressure vapor mixing, can form 6.0 Mpa(a) steam of pressure rating, be incorporated to 6.0 Mpa(a of bisphenol A device) in vapour system.
The present invention with multiinjector pressure matcher under the injection of high pressure grade steam promotes, the solidifying water of elevated pressures grade is reclaimed to the steam of low-pressure grade by flash of steam, small investment of this solidifying water waste-heat recovery device, reliability is high, investment return is obvious, investment payback time is short, is the good method of saving bisphenol-A manufacturing cost, improving heat utilization rate.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the schematic diagram of one embodiment of the invention.
Detailed description of the invention
A kind of method of carrying out UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water, the solidifying water that bisphenol A device is produced is sent into solidifying water flash tank 1, on the gas pipeline of solidifying water flash drum overhead, connect an electric three passes reversal valve 2, the other end of the triple valve 2 that solidifying water pot top connects is connected to cooler 7, by water quench;
Under normal circumstances, flash-off steam in solidifying water flash tank enters multiinjector pressure matcher 3 by triple valve, this pressure matcher is using high-grade steam as injection source, spray under promotion at high-grade steam, pressure in solidifying water flash tank is because causing solidifying water flash distillation to produce low-grade steam lower than the saturation pressure under solidifying coolant-temperature gage, solidifying water is vaporized, the temperature of solidifying water is reduced to the saturation temperature under this controlled pressure simultaneously, low-grade flash-off steam is under high-grade uperize sprays, mix with high-grade uperize, forming bisphenol A device needs the steam of pressure rating,
In the time there is the pressure that flash-off steam pressure is set higher than flash tank, flash-off steam enters cooler, and by after cooling water cooling, flash-off steam is condensed, and is connected to atmospheric pressure state with atmosphere.
By 0.5Mpa(a) steam condensation water 6 sends into flash-off steam tank, the pressure of flash-off steam tank is controlled to 0.25 Mpa(a), using 2.0 Mpa(a) high level of pressure steam as uperize, can produce 0.25 more than 2t/h flow Mpa(a from flash tank) flash-off steam, this steam and 2.0 Mpa(a) high level of pressure steam 5 mix, can form 6.0 Mpa(a) steam 4 of pressure rating, be incorporated to 6.0 Mpa(a of bisphenol A device) in vapour system.In figure, 8 is 0.25 Mpa(a) solidifying water.
Claims (2)
1. one kind is carried out the method for UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water, it is characterized in that: the solidifying water that bisphenol A device is produced is sent into solidifying water flash tank, on the gas pipeline of solidifying water flash drum overhead, connect an electric three passes reversal valve, the other end of the triple valve that solidifying water pot top connects is connected to cooler, by water quench;
Under normal circumstances, flash-off steam in solidifying water flash tank enters multiinjector pressure matcher by triple valve, this pressure matcher is using high-grade steam as injection source, spray under promotion at high-grade steam, pressure in solidifying water flash tank is because causing solidifying water flash distillation to produce low-grade steam lower than the saturation pressure under solidifying coolant-temperature gage, solidifying water is vaporized, the temperature of solidifying water is reduced to the saturation temperature under this controlled pressure simultaneously, low-grade flash-off steam is under high-grade uperize sprays, mix with high-grade uperize, forming bisphenol A device needs the steam of pressure rating,
In the time there is the pressure that flash-off steam pressure is set higher than flash tank, flash-off steam enters cooler, and by after cooling water cooling, flash-off steam is condensed, and is connected to atmospheric pressure state with atmosphere.
2. method of carrying out UTILIZATION OF VESIDUAL HEAT IN with bisphenol A device steam condensation water according to claim 1, it is characterized in that: by 0.5Mpa(a) steam condensation water sends into flash-off steam tank, the pressure of flash-off steam tank is controlled to 0.25 Mpa(a), using 2.0 Mpa(a) high level of pressure steam as uperize, can produce 0.25 more than 2t/h flow Mpa(a from flash tank) flash-off steam, this steam and 2.0 Mpa(a) high level of pressure vapor mixing, can form 6.0 Mpa(a) steam of pressure rating, be incorporated to 6.0 Mpa(a of bisphenol A device) in vapour system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311314.3A CN104061560A (en) | 2014-07-02 | 2014-07-02 | Method for utilizing the waste heat of steam condensed water of biphenol A device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410311314.3A CN104061560A (en) | 2014-07-02 | 2014-07-02 | Method for utilizing the waste heat of steam condensed water of biphenol A device |
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| CN104061560A true CN104061560A (en) | 2014-09-24 |
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Citations (12)
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| US4088542A (en) * | 1975-06-11 | 1978-05-09 | Heinz Schumacher | Method of and device for spontaneously distilling off secondary substances especially from oily liquids |
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Application publication date: 20140924 |