CN220695863U - Evaporation device with secondary steam utilization function - Google Patents
Evaporation device with secondary steam utilization function Download PDFInfo
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- CN220695863U CN220695863U CN202322192755.3U CN202322192755U CN220695863U CN 220695863 U CN220695863 U CN 220695863U CN 202322192755 U CN202322192755 U CN 202322192755U CN 220695863 U CN220695863 U CN 220695863U
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- falling film
- steam
- evaporator
- film evaporator
- scraper
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- 238000001704 evaporation Methods 0.000 title claims abstract description 43
- 230000008020 evaporation Effects 0.000 title claims abstract description 43
- 239000011552 falling film Substances 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000011084 recovery Methods 0.000 claims description 21
- 239000002918 waste heat Substances 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 11
- 239000010408 film Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims 2
- 230000008016 vaporization Effects 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model provides an evaporation plant with secondary steam utilizes, including the scraper blade evaporimeter, the falling film evaporator subassembly, vapor compressor and preheating unit, preheating unit is connected with the falling film evaporator subassembly, preheat the former raw water of evaporation through preheating unit and carry in the falling film evaporator subassembly, the falling film evaporator subassembly is connected with the scraper blade evaporimeter through vapor compressor, the falling film evaporator subassembly evaporates the raw water, flow into the scraper blade evaporimeter after the steam after the evaporation through vapor compressor pressure boost and further evaporate, the scraper blade evaporimeter is connected with the falling film evaporator subassembly, the secondary steam that produces in the scraper blade evaporimeter flows into the falling film evaporator subassembly, make the secondary steam that the scraper blade evaporimeter produced flow back to the scraper blade evaporimeter through the effect of falling film evaporator subassembly, vapor compressor again, thereby realize the circulation practicality of steam, the consumption of raw steam has been saved greatly, increase enterprise economic benefits.
Description
Technical Field
The utility model belongs to the technical field of evaporation devices, and particularly relates to an evaporation device with secondary steam utilization.
Background
In petroleum and chemical production, evaporation, purification and concentration are carried out by a scraper thin film evaporator, raw material liquid is tangentially added from the upper part of the scraper thin film evaporator, a downwards-rotating film is formed along the inner wall surface of a shell under the drive of gravity and a rotating scraper, finished liquid is discharged from a bottom discharger, and secondary steam is discharged from the upper part after passing through a foam remover; in the existing evaporation systems on the market, most of secondary steam generated by the scraper film evaporator is directly discharged, so that the consumption of raw steam is greatly increased, and the economic benefit of enterprises is reduced.
Disclosure of Invention
Aiming at the defects, the utility model aims to provide the evaporation device with secondary steam utilization, which is used for recycling the secondary steam of the evaporation device, reducing the consumption of raw steam and increasing the economic benefit of enterprises.
In order to solve the technical problems, the utility model adopts the technical proposal that,
the utility model provides an evaporation plant with secondary steam utilizes, includes scraper evaporator, falling film evaporator subassembly and vapor compressor, and the falling film evaporator subassembly passes through vapor compressor and is connected with the scraper evaporator, and in the vapor that the falling film evaporator subassembly produced flowed into the scraper evaporator after passing through vapor compressor pressurization, the scraper evaporator was connected with the falling film evaporator subassembly to retrieve the secondary steam that the scraper evaporator produced to the falling film evaporator subassembly in.
As a preferable scheme of the utility model, the falling film evaporator assembly comprises a falling film heater and a falling film separator which are connected with each other, the scraper evaporator is connected with the falling film heater, secondary steam generated in the scraper evaporator is recovered into the falling film heater, and the falling film separator is connected with the steam compressor.
As a preferred scheme of the utility model, the evaporation device further comprises a preheating component, the preheating component is connected with the falling film evaporator component, and raw water before evaporation is preheated through the preheating component and then is conveyed into the falling film evaporator component.
As a preferred scheme of the utility model, the preheating component comprises a primary preheater and a secondary preheater which are sequentially connected, and the secondary preheater is connected with the falling film evaporator component.
As a preferable scheme of the utility model, the evaporation device further comprises a steam generating pipe network, and the steam generating pipe network is connected with the scraper evaporator and the secondary preheater to supply steam for the scraper evaporator.
As a preferred embodiment of the utility model, the vapor compressor is connected to the vapor generating pipe network by a pipeline.
As a preferable scheme of the utility model, the evaporation device comprises a waste heat recovery device, the waste heat recovery device is connected with the primary preheater, and the waste heat recovery device is used for providing heat energy for the primary preheater.
As a preferable scheme of the utility model, the waste heat recovery device comprises a waste heat recovery pipeline, a condensate water storage tank and a water pump, wherein the secondary preheater, the scraper evaporator and the falling film evaporator assembly are connected with the condensate water storage tank through the waste heat recovery pipeline, and the condensate water storage tank is connected with the primary preheater through the water pump.
As a preferable scheme of the utility model, the primary preheater and the secondary preheater are both heat exchangers.
As a preferable scheme of the utility model, the scraper evaporator is a microwave vibration cloth film scraper evaporator.
The utility model has the beneficial effects that the secondary steam generated in the scraper evaporator flows into the falling film evaporator assembly, so that the secondary steam generated in the scraper evaporator flows back to the scraper evaporator again through the falling film evaporator assembly and the steam compressor, thereby realizing the practical circulation of the steam, greatly saving the consumption of raw steam and increasing the economic benefit of enterprises.
Drawings
Fig. 1 is a system diagram of the present evaporation apparatus.
Reference numerals: the device comprises a scraper evaporator 1, a falling film evaporator component 2, a falling film heater 2-1, a falling film separator 2-2, a vapor compressor 3, a preheating component 4, a primary preheater 4-1, a secondary preheater 4-2, a raw steam pipe network 5, a waste heat recovery device 6, a waste heat recovery pipeline 6-1, a condensed water storage tank 6-2 and a water pump 6-3.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model provides an evaporation plant with secondary steam utilization, including scraper evaporator 1, falling film evaporator assembly 2, vapor compressor 3 and preheating assembly 4, preheating assembly 4 is connected with falling film evaporator assembly 2, preheat the preceding raw water of evaporation back through preheating assembly 4 and carry to falling film evaporator assembly 2 in, falling film evaporator assembly 2 is connected with scraper evaporator 1 through vapor compressor 3, falling film evaporator assembly 2 evaporates the raw water, the steam after the evaporation flows into in scraper evaporator 1 after passing through vapor compressor 3 pressure boost and carries out further evaporation, scraper evaporator 1 is connected with falling film evaporator assembly 2, the secondary steam that produces in the scraper evaporator 1 flows into in the falling film evaporator assembly 2, make the secondary steam that scraper evaporator 1 produced flow back to scraper evaporator 1 through the effect of falling film evaporator assembly 2, vapor compressor 3 again, thereby realize the circulation practicality of steam, the consumption of raw steam has been saved greatly, increase enterprise economic benefits.
The falling film evaporator assembly 2 comprises a falling film heater 2-1 and a falling film separator 2-2 which are connected with each other, the scraper evaporator 1 is connected with the falling film heater 2-1, the falling film separator 2-2 is connected with the vapor compressor 3, the raw water preheated by the preheating assembly 4 and the secondary vapor generated in the scraper evaporator 1 are recycled to the falling film heater 2-1 for heating, the heated materials enter the falling film separator 2-2 for separation, and the separated vapor flows into the vapor compressor 3.
The preheating component 4 comprises a primary preheater 4-1 and a secondary preheater 4-2 which are sequentially connected, the secondary preheater 4-2 is connected with the falling film evaporator component 2, raw water before evaporation sequentially flows into the falling film evaporator component 2 after passing through the primary preheater 4-1 and the secondary preheater 4-2, and raw water is preheated through the preheating component 4, so that the evaporation efficiency of the falling film evaporator component 2 is conveniently improved.
The primary preheater 4-1 and the secondary preheater 4-2 in this embodiment are both heat exchangers, the primary preheater 4-1 is used for transferring heat energy in condensed water into raw water before evaporation to form primary preheating, and the secondary preheater 4-2 is used for transferring steam heat energy of the steam pipe network 5 into raw water before evaporation after primary preheating to form secondary preheating.
The evaporation device further comprises a steam pipe network 5, the steam pipe network 5 is connected with the scraper evaporator 1 and the secondary preheater 4-2, the steam pipe network 5 is used for supplying steam for an enterprise steam supply pipe network, the steam is supplied for the scraper evaporator 1 and the secondary preheater 4-2, the steam flows into the scraper evaporator 1 for further evaporation, and the steam flows into the secondary preheater 4-2 and is used for supplying preheating heat energy for the secondary preheater 4-2.
The vapor compressor 3 is connected with the vapor pipe network 5 through a pipeline, and part of the vapor after the vapor compressor 3 performs work can be directly discharged into the vapor pipe network 5.
In order to facilitate the recovery of waste heat in condensed water generated by each component, the evaporation device further comprises a waste heat recovery device 6, the waste heat recovery device 6 is connected with the primary preheater 4-1, the waste heat recovery device 6 recovers the condensed water generated by each component, and then the condensed water is conveyed to the primary preheater 4-1 to provide heat energy for the primary preheater 4-1 to the raw water before evaporation so as to realize primary preheating.
The waste heat recovery device 6 comprises a waste heat recovery pipeline 6-1, a condensate water storage tank 6-2 and a water pump 6-3, wherein the secondary preheater 4-2, the scraper evaporator 1 and the falling film heater 2-1 are connected with the condensate water storage tank 6-2 through the waste heat recovery pipeline 6-1, the condensate water storage tank 6-2 is connected with the primary preheater 4-1 through the water pump 6-3, condensate water generated by the secondary preheater 4-2, the scraper evaporator 1 and the falling film heater 2-1 is recovered into the condensate water storage tank 6-2, and then the condensate water is conveyed into the primary preheater 4-1 through the water pump, so that raw water is conveniently preheated before initial evaporation.
In this embodiment, the scraper evaporator 1 is a commercially available microwave vibration film-distributing scraper evaporator, and it should be noted that an alternative apparatus for the microwave vibration film-distributing scraper evaporator includes: the microwave jacket kettle evaporates and the microwave forcibly evaporates, and the structure for realizing the corresponding preheating function of the application belongs to the protection scope of the application. The equipment that falling film evaporator subassembly 2 can replace includes jacket cauldron, all kinds of heat exchangers + separator + circulating pump etc. as long as realize this application the structure of steam generation function all belongs to the protection scope of this application. The vapor compressor 3 can be shown as a centrifugal vapor compressor unit, and meanwhile, the centrifugal vapor compressor unit can be replaced by a multi-stage Roots blower connected in series so as to realize vapor compression and heating functions.
In this embodiment, the raw steam is the steam in the steam pipe network of the factory, and the secondary steam is the steam generated after the steam processed by the steam compressor 3 enters the scraper evaporator 1 to be evaporated and purified.
The system comprises a preheating process, a circulating rectification process and a vapor recompression process:
(1) And (3) a preheating procedure. Raw water conveying and preheating: raw water is conveyed by a feed pump outside the boundary region, preheated by a primary preheater 4-1 and a secondary preheater 4-2, and enters a falling film heater 2-1 to carry out an internal film distribution circulation system. Wherein the heating medium of the primary preheater 4-1 is condensate; the heating medium of the secondary preheater 4-2 is steam or the compressed steam of the steam compressor 3.
(2) And (3) an evaporation process. The preheated raw water enters a falling film heater 2-1, the heated material enters a falling film separator 2-2 for evaporation, the evaporated steam is subjected to work by a steam compressor 3, and compressed gas enters a scraper evaporator 1 for further evaporation to obtain a thicker material; the scraper evaporator 1 of the embodiment adopts a microwave vibration film-distributing scraper evaporator, the microwave vibration film-distributing scraper evaporator can greatly reduce material agglomeration, small materials block a discharge hole, and the service life of the scraper is prolonged.
(3) Vapor recompression process. The secondary steam from the falling film separator 2-2 is used as heating medium of circulating material after the enthalpy and pressure of the secondary steam are increased by the action of the steam compressor 3, and then enters the heater tube side in the scraper evaporator 1, so that the generated secondary steam is utilized by using a small amount of electric energy to do work, and the consumption of raw steam is greatly reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the terms corresponding to the reference numerals in the drawings are used more herein, the possibility of using other terms is not excluded; these terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (9)
1. The evaporation device with the secondary steam utilization function is characterized by comprising a scraper evaporator (1), a falling film evaporator assembly (2) and a steam compressor (3), wherein the falling film evaporator assembly (2) is connected with the scraper evaporator (1) through the steam compressor (3), steam generated by the falling film evaporator assembly (2) flows into the scraper evaporator (1) after being pressurized by the steam compressor (3), and the scraper evaporator (1) is connected with the falling film evaporator assembly (2) so as to recycle the secondary steam generated by the scraper evaporator (1) into the falling film evaporator assembly (2);
the falling film evaporator assembly (2) comprises a falling film heater (2-1) and a falling film separator (2-2) which are connected with each other, the scraper evaporator (1) is connected with the falling film heater (2-1), secondary steam generated in the scraper evaporator (1) is recovered into the falling film heater (2-1), and the falling film separator (2-2) is connected with the steam compressor (3).
2. The evaporation plant with secondary steam utilization according to claim 1, further comprising a preheating component (4), wherein the preheating component (4) is connected with the falling film evaporator component (2), and raw water before evaporation is preheated by the preheating component (4) and then is conveyed into the falling film evaporator component (2).
3. An evaporation plant with secondary steam utilization according to claim 2, characterized in that the preheating module (4) comprises a primary preheater (4-1) and a secondary preheater (4-2) connected in sequence, the secondary preheater (4-2) being connected to the falling film evaporator module (2).
4. A secondary steam utilizing evaporation device according to claim 3, wherein the evaporation device further comprises a steam generating pipe network (5), and the steam generating pipe network (5) is connected with the scraper evaporator (1) and the secondary preheater (4-2) to provide steam for the scraper evaporator (1).
5. An evaporation plant with secondary steam utilization according to claim 4, characterized in that the steam compressor (3) is connected to the steam generating pipe network (5) by means of a pipe.
6. A vaporization unit with secondary steam utilization according to claim 3, characterized in that the vaporization unit comprises a waste heat recovery unit (6), the waste heat recovery unit (6) being connected to the primary preheater (4-1), the primary preheater (4-1) being supplied with thermal energy by the waste heat recovery unit (6).
7. The evaporation device with secondary steam utilization according to claim 6, wherein the waste heat recovery device (6) comprises a waste heat recovery pipeline (6-1), a condensate water storage tank (6-2) and a water pump (6-3), the secondary preheater (4-2), the scraper evaporator (1) and the falling film evaporator assembly (2) are connected with the condensate water storage tank (6-2) through the waste heat recovery pipeline (6-1), and the condensate water storage tank (6-2) is connected with the primary preheater (4-1) through the water pump (6-3).
8. An evaporation plant with secondary steam utilization according to claim 4, characterized in that the primary preheater (4-1) and the secondary preheater (4-2) are both heat exchangers.
9. An evaporation plant with secondary steam utilization according to claim 1, characterized in that the scraper evaporator (1) is a microwave vibration cloth film scraper evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192755.3U CN220695863U (en) | 2023-08-15 | 2023-08-15 | Evaporation device with secondary steam utilization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192755.3U CN220695863U (en) | 2023-08-15 | 2023-08-15 | Evaporation device with secondary steam utilization function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220695863U true CN220695863U (en) | 2024-04-02 |
Family
ID=90452736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322192755.3U Active CN220695863U (en) | 2023-08-15 | 2023-08-15 | Evaporation device with secondary steam utilization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220695863U (en) |
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2023
- 2023-08-15 CN CN202322192755.3U patent/CN220695863U/en active Active
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