CN201569306U - Esterified steam waste-heat recovery and heat exchange device, - Google Patents
Esterified steam waste-heat recovery and heat exchange device, Download PDFInfo
- Publication number
- CN201569306U CN201569306U CN200920259737XU CN200920259737U CN201569306U CN 201569306 U CN201569306 U CN 201569306U CN 200920259737X U CN200920259737X U CN 200920259737XU CN 200920259737 U CN200920259737 U CN 200920259737U CN 201569306 U CN201569306 U CN 201569306U
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- steam
- heat exchanger
- esterified
- heat recovery
- water plate
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Abstract
The utility model relates to an esterified steam waste-heat recovery and heat exchange device, which is characterized in that a steam-water plate-type heat exchanger plate piece adopts multiple a lambdoidal corrugated form; and the top parts of an upper collecting pipe and a lower collecting pipe of the hot side of a steam-water plate-type heat exchanger are provided with a non-condensable gas emission and removing device. The esterified steam waste heat recovery and heat exchange device solves the problem that the steam-water plate-type heat exchanger can not be used for the esterified steam waste-heat recovery system, and can realize continuous and stable exhaust without consuming any energy.
Description
Technical field
The utility model belongs to waste heat recovery plant, particularly relates to the heat-exchanger rig in the petrochemical industry esterification steam waste heat recovery plant.
Background technology
In polyester production process, can produce the esterification steam of a large amount of low-temp low-pressures, except that water vapour, also contain organic substances such as ethylene glycol, acetate, acetaldehyde in the esterification steam.The recycling of esterification steam used heat all will be passed through shell and tube exchanger or plate type heat exchanger heat exchange no matter be directly to reclaim or reclaim indirectly, and low-boiling-point organic compounds such as acetaldehyde can condensation and accumulate in the heat exchanger easily.These incoagulable gas accumulate in heat exchange efficiency is reduced, and when being full of incoagulable gas in the heat exchanger, heat exchanger can not heat exchange, and Waste Heat Recovery also just can't be carried out.
In order to get rid of the incoagulable gas in the heat exchanger, the past, common way had manual exhaust and steam ejection etc.Manually exhaust is that the people is for stopping WHRS operation a period of time, by opening the manually-operated gate discharging incoagulable gas on the heat exchanger.Because incoagulable gas can ceaselessly produce, so manual exhaust need often stop the operation of WHRS, and polyester production process carries out continuously, stops the WHRS operation, just must start the technology cooling system with the esterification steam condensation.Continually switched system not only polyester production process be affected, and complex operation, the economy and the reliability of WHRS operation are simultaneously had a greatly reduced quality.Incoagulable gas by in the high steam induction apparatus eliminating heat exchanger is easy to the esterification steam of the condensation that also is not able to do in time in the heat exchanger is taken away, and the economy of Waste Heat Recovery is had a greatly reduced quality, and also need expend a large amount of high steams simultaneously.
The utility model content
The purpose of this utility model provides a kind of esterification steam Waste Heat Recovery heat-exchanger rig that overcomes above-mentioned prior art weak point, makes that the low boiling incoagulable gas in the heat exchanger process of esterification steam Waste Heat Recovery continues, stable, low-cost discharging.
The scheme of utility model technical solution problem is: special low-resistance vapour-water plate type heat exchanger is used for the esterification steam WHRS, vapour-water plate type heat exchanger plate adopts special many herringbones of low-resistance ripple pattern, at the hot side upper header and the lower collector pipe top of vapour-water plate type heat exchanger the incoagulable gas tapping equipment is set.
Said vapour-water plate type heat exchanger plate adopts many herringbones ripple pattern, and cold and hot both sides are that full adverse current turbulent flow distributes.Steam can produce comparatively strong turbulence-like when flowing in passage, make incoagulable gas be difficult for being detained under this disturbance.
Said vapour-water plate type heat exchanger, plate can be selected 304 stainless steel materials for use, and its life-span and process equipment are consistent.Distinctive low pressure drop template guarantees the low pressure drop of hot side, and this plate line has guaranteed that the pressure drop of hot side under higher flow velocity is only about 5kpa.
Incoagulable gas discharging removal apparatus is set at the hot side upper header of vapour-water plate type heat exchanger and lower collector pipe top, be utilize esterification steam and extraneous available pressure reduction (〉=5Kpa) can guarantee the smooth discharge of incoagulable gas.Heat-exchanger rig has adopted higher allowance on type selecting, this means with respect to cold side, and hot side has the very high thermal efficiency, even the condensation that a spot of incoagulable gas exists also can not influence esterification steam is arranged.
Good effect of the present utility model: the one, select the special vapour of high-efficiency low-resistance-water plate type heat exchanger for use, solve vapour-water plate type heat exchanger and can not be used for the difficult problem of esterification steam WHRS; The 2nd, on the lower collector pipe exhaust apparatus is being set on vapour-hot side of water plate type heat exchanger, can realize continual and steady exhaust and do not consume any energy.
Description of drawings
Accompanying drawing is the utility model structural representation.Among the figure: 1-steam collector, 2-condensate liquid collector, 3-hot water collector A, 4-hot water collector B, 5-exhaust apparatus A, 6-exhaust apparatus B, 7-esterification steam inlet, 8-condensate outlet, 9-hot water outlet, 10-hot water inlet.
The specific embodiment
Further introduce the content of utility model below in conjunction with accompanying drawing embodiment.
As scheming as showing: heat-exchanger rig adopts many herringbones corrugated form, and its steam collector (1) top is provided with exhaust apparatus A (5), and condensate liquid collector (2) top is provided with exhaust apparatus B (6).Cold and hot both sides are that full adverse current turbulent flow distributes, and steam can produce comparatively strong turbulence-like when flowing in passage, make incoagulable gas be difficult for being detained under this disturbance.
Exhaust apparatus A (5) and exhaust apparatus B (6) utilize esterification steam and extraneous pressure reduction (〉=5Kpa) can guarantee the smooth discharge of incoagulable gas.Heat-exchanger rig has adopted higher allowance on type selecting, this means with respect to cold side, and hot side has the very high thermal efficiency, even the condensation that a spot of incoagulable gas exists also can not influence esterification steam is arranged.
Esterification steam enters heat-exchanger rig from esterification steam inlet (7), and condensate liquid is discharged from condensate outlet (8); Cold side hot water enters heat-exchanger rig from cold side hot water inlet (10) through hot water collector B (4), flows out from cold side hot water outlet (9) through hot water collector A (3).
Claims (1)
1. esterification steam Waste Heat Recovery heat-exchanger rig, it is characterized in that: vapour-water plate type heat exchanger plate adopts special many herringbones of low-resistance ripple pattern; Hot side upper header and lower collector pipe top at vapour-water plate type heat exchanger are provided with the incoagulable gas tapping equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920259737XU CN201569306U (en) | 2009-12-17 | 2009-12-17 | Esterified steam waste-heat recovery and heat exchange device, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920259737XU CN201569306U (en) | 2009-12-17 | 2009-12-17 | Esterified steam waste-heat recovery and heat exchange device, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569306U true CN201569306U (en) | 2010-09-01 |
Family
ID=42661596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920259737XU Expired - Fee Related CN201569306U (en) | 2009-12-17 | 2009-12-17 | Esterified steam waste-heat recovery and heat exchange device, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751822A (en) * | 2022-03-16 | 2022-07-15 | 浙江建业化工股份有限公司 | Device for producing n-propyl acetate through thermal coupling and production method thereof |
-
2009
- 2009-12-17 CN CN200920259737XU patent/CN201569306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751822A (en) * | 2022-03-16 | 2022-07-15 | 浙江建业化工股份有限公司 | Device for producing n-propyl acetate through thermal coupling and production method thereof |
| CN114751822B (en) * | 2022-03-16 | 2024-04-09 | 浙江建业化工股份有限公司 | Device for producing n-propyl acetate by thermal coupling and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |