CN215566147U - Esterified steam waste heat power generation system - Google Patents
Esterified steam waste heat power generation system Download PDFInfo
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- CN215566147U CN215566147U CN202120989161.3U CN202120989161U CN215566147U CN 215566147 U CN215566147 U CN 215566147U CN 202120989161 U CN202120989161 U CN 202120989161U CN 215566147 U CN215566147 U CN 215566147U
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Abstract
The utility model relates to the technical field of polyester devices, and discloses an esterification steam waste heat power generation system which comprises a micro-positive pressure water steam pipeline, an original process condensate system and a steam waste heat power generation system, wherein the steam waste heat power generation system comprises an ORC power generation system, a cooling system and a condensate treatment system; the ORC power generation system comprises an ORC generator set and a control system; the ORC generator set comprises an ORC expansion generator, an evaporator, a preselector and a working medium pump; the condensed water treatment system comprises a condensed water tank, a condensed water pump and a plate heat exchanger; the cooling system comprises a condenser, a cooling tower and a circulating water pump. The esterification steam waste heat power generation system provided by the utility model not only can recover the steam waste heat generated by the polyester device, but also can convert the steam waste heat into high-quality electric energy, and the energy consumption of the polyester device is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of polyester devices, in particular to an esterification steam waste heat power generation system.
Background
The polyester device is an important technical process device in the production process of new chemical materials and is used for producing various polyester products. The device generates micro-positive pressure water vapor, and in the conventional process, the vapor radiates heat to the atmospheric environment through the air cooler to become low-temperature condensed water which returns to the device for spraying. In the prior art, no equipment for recycling the micro-positive pressure water vapor generated by the polyester device exists.
For example, the national patent document CN204079855U discloses a bottle-grade polyester device, which comprises a slurry preparation device (1), a first esterification reactor (2), a second esterification reactor (3), a pre-polycondensation reactor (4), a final polycondensation reactor (5), a melt filter (6), a material cutting device (7) and a slice collecting hopper (8) which are sequentially communicated. The utility model discloses a although designed each component part of bottle level polyester device, this utility model can't recycle the little positive pressure water vapor that produces, can't reduce the polyester device energy consumption by a wide margin.
SUMMERY OF THE UTILITY MODEL
The utility model provides an esterification steam waste heat power generation system, thereby solving the problems in the prior art.
The utility model provides an esterification steam waste heat power generation system which comprises a micro-positive pressure steam pipeline, an original process condensate system and a steam waste heat power generation system, wherein the micro-positive pressure steam pipeline comprises a first branch and a second branch, the first branch is connected with the original process condensate system, the second branch is connected with the steam waste heat power generation system, and the steam waste heat power generation system comprises an ORC power generation system, a cooling system and a condensate treatment system; the ORC power generation system comprises an ORC (organic Rankine cycle) generator set and a control system; the ORC generator set comprises an ORC expansion generator (7), an evaporator (6), a presetter (5) and a working medium pump (4); the condensed water treatment system comprises a condensed water tank (11), a condensed water pump (12) and a plate heat exchanger (13); the cooling system comprises a condenser (8), a cooling tower (9) and a circulating water pump (10).
Further, the evaporator (6) is connected with the presetter (5), and the working medium pump (4) and the condensate tank (11) are respectively connected with the presetter (5); the water condensation tank (11) is connected with the water condensation pump (12), and the water condensation pump (12) is connected with the plate-type heat exchanger (13); the working medium pump (4) is connected with the condenser (8), and the evaporator (6) and the condenser (8) are respectively connected with the ORC expansion generator (7).
Furthermore, the water outlet end of the condenser (8) is connected with one end of the cooling tower (9), the water inlet end of the condenser (8) is connected with one end of a circulating water pump (10), and the other end of the circulating water pump (10) is connected with the other end of the cooling tower (9).
Furthermore, the original process condensate system comprises an air cooler (1), an original condensate tank (2) and an original condensate pump (3), wherein the air cooler (1) is connected with the original condensate tank (2), and the original condensate tank (2) is connected with the original condensate pump (3); the polyester device comprises a spraying system, and the raw condensate pump (3) and the plate heat exchanger (13) are respectively connected with the spraying system.
Furthermore, the first branch is provided with a bypass valve (14), and the second branch is provided with a main valve (15).
Furthermore, the control system comprises a controller, the controller is respectively connected with the ORC expansion generator (7), the raw condensate pump (3), the working medium pump (4), the circulating water pump (10), the bypass valve (14) and the main valve (15), and the controller is used for controlling the opening and closing of the ORC expansion generator (7), the pumps and the valves.
The utility model has the beneficial effects that: the esterification steam waste heat power generation system provided by the utility model not only can recover the steam waste heat generated by the polyester device, but also can convert the steam waste heat into high-quality electric energy, and the energy consumption of the polyester device is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an esterification steam waste heat power generation system provided in the first embodiment.
1. The system comprises an air cooler, 2, a raw condensate tank, 3, a raw condensate pump, 4, a working medium pump, 5, a preheater, 6, an evaporator, 7, an ORC expansion generator, 8, a condenser, 9, a cooling tower, 10, a circulating water pump, 11, a condensate tank, 12, a condensate pump, 13, a plate heat exchanger, 14, a bypass valve, 15 and a main valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In a first embodiment, an esterification steam waste heat power generation system, as shown in fig. 1, includes a micro positive pressure water steam pipeline, an original process condensate system, and a steam waste heat power generation system, where the micro positive pressure water steam pipeline includes a first branch and a second branch, the first branch is provided with a bypass valve 14, and the second branch is provided with a main valve 15. The first branch is connected with an original process condensate system, the second branch is connected with a steam waste heat power generation system, and the steam waste heat power generation system comprises an ORC power generation system, a cooling system and a condensate water treatment system; the ORC power generation system comprises an ORC generator set and a control system; the ORC generator set comprises an ORC expansion generator 7, an evaporator 6, a presetter 5 and a working medium pump 4; the condensed water treatment system comprises a condensed water tank 11, a condensed water pump 12 and a plate heat exchanger 13; the cooling system includes a condenser 8, a cooling tower 9, and a circulating water pump 10.
The evaporator 6 is connected with the presetter 5, and the working medium pump 4 and the condensate tank 11 are respectively connected with the presetter 5; the condensate tank 11 is connected with a condensate pump 12, and the condensate pump 12 is connected with a plate heat exchanger 13; the working medium pump 4 is connected with the condenser 8, and the evaporator 6 and the condenser 8 are respectively connected with the ORC expansion generator 7.
The water outlet end of the condenser 8 is connected with one end of the cooling tower 9, the water inlet end of the condenser 8 is connected with one end of a circulating water pump 10, and the other end of the circulating water pump 10 is connected with the other end of the cooling tower 9.
The original process condensate system is provided with an air cooler 1, an original condensate tank 2 and an original condensate pump 3, wherein the air cooler 1 is connected with the original condensate tank 2, and the original condensate tank 2 is connected with the original condensate pump 3; the polyester device comprises a spraying system, and the raw condensate pump 3 and the plate heat exchanger 13 are respectively connected with the spraying system.
The control system comprises a controller, the controller is respectively connected with the ORC expansion generator 7, the original condensate pump 3, the working medium pump 4, the circulating water pump 10, the bypass valve 14 and the main valve 15, and the controller is used for controlling the opening and closing of the ORC expansion generator 7, the pumps and the valves.
The operating principle of the esterification steam waste heat power generation system designed by the utility model is as follows:
when the waste heat power generation system works normally, the bypass valve 14 is closed, and the main valve 15 is opened.
The micro-positive pressure water vapor generated by the polyester device passes through the second branch and sequentially passes through the evaporator 6 and the preheater 5 in sequence, is condensed into liquid water after being cooled, flows into the condensate tank 11, is driven by the condensate pump 12 to enter the plate heat exchanger 13 for further cooling, and then returns to the spraying system of the polyester device for spraying.
The liquid organic working medium is driven by the working medium pump 4 and sequentially passes through the preheater 5 and the evaporator 6 to become a gaseous working medium, the gaseous working medium enters the ORC expansion generator 7 to do work, the ORC expansion generator 7 is utilized to supply power outwards, the gaseous working medium enters the condenser 8 and is condensed into a liquid working medium, and the liquid working medium returns to the working medium pump 4 to complete thermodynamic cycle.
And the circulating water pump 10 sends cooling water into the condenser 8, the cooling water enters the cooling tower 9 for cooling after being heated, and the cooling water returns to the circulating water pump 10 after being cooled, so that cooling water circulation is completed.
When the waste heat power generation system is overhauled or stopped due to faults, the bypass valve 14 is opened, the main valve 15 is closed, water vapor enters the original process flow, micro positive pressure water vapor generated by the polyester device enters the air cooler 1 through the first branch and is condensed into liquid water, the liquid water flows into the original condensation water tank 2, and then the liquid water is sent back to a spraying system of the polyester device by the original condensation water pump 3 to be sprayed.
By adopting the technical scheme disclosed by the utility model, the following beneficial effects are obtained:
the esterification steam waste heat power generation system provided by the utility model not only can recover the steam waste heat generated by the polyester device, but also can convert the steam waste heat into high-quality electric energy, and the energy consumption of the polyester device is greatly reduced. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (6)
1. The esterified steam waste heat power generation system is characterized by comprising a micro-positive pressure steam pipeline, an original process condensate system and a steam waste heat power generation system, wherein the micro-positive pressure steam pipeline comprises a first branch and a second branch, the first branch is connected with the original process condensate system, the second branch is connected with the steam waste heat power generation system, and the steam waste heat power generation system comprises an ORC power generation system, a cooling system and a condensate treatment system; the ORC power generation system comprises an ORC generator set and a control system; the ORC generator set comprises an ORC expansion generator (7), an evaporator (6), a presetter (5) and a working medium pump (4); the condensed water treatment system comprises a condensed water tank (11), a condensed water pump (12) and a plate heat exchanger (13); the cooling system comprises a condenser (8), a cooling tower (9) and a circulating water pump (10).
2. The esterification steam waste heat power generation system according to claim 1, wherein the evaporator (6) is connected with a presetter (5), and the working medium pump (4) and the condensate tank (11) are respectively connected with the presetter (5); the condensate tank (11) is connected with the condensate pump (12), and the condensate pump (12) is connected with the plate-type heat exchanger (13); the working medium pump (4) is connected with the condenser (8), and the evaporator (6) and the condenser (8) are respectively connected with the ORC expansion generator (7).
3. The esterification steam waste heat power generation system according to claim 2, wherein the water outlet end of the condenser (8) is connected with one end of the cooling tower (9), the water inlet end of the condenser (8) is connected with one end of the circulating water pump (10), and the other end of the circulating water pump (10) is connected with the other end of the cooling tower (9).
4. The esterification steam waste heat power generation system according to claim 1, wherein the primary process condensate system comprises an air cooler (1), a primary condensate tank (2) and a primary condensate pump (3), the air cooler (1) is connected with the primary condensate tank (2), and the primary condensate tank (2) is connected with the primary condensate pump (3); the polyester device comprises a spraying system, and the raw condensate pump (3) and the plate heat exchanger (13) are respectively connected with the spraying system.
5. The esterification steam residual heat power generation system according to claim 4, characterized in that the first branch is provided with a bypass valve (14) and the second branch is provided with a main valve (15).
6. The esterification steam waste heat power generation system according to claim 5, wherein the control system comprises a controller, the controller is respectively connected with the ORC expansion generator (7), the raw condensate pump (3), the working medium pump (4), the circulating water pump (10), the bypass valve (14) and the main valve (15), and the controller is used for controlling the opening and closing of the ORC expansion generator (7), each pump and each valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120989161.3U CN215566147U (en) | 2021-05-10 | 2021-05-10 | Esterified steam waste heat power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120989161.3U CN215566147U (en) | 2021-05-10 | 2021-05-10 | Esterified steam waste heat power generation system |
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| CN215566147U true CN215566147U (en) | 2022-01-18 |
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| CN202120989161.3U Active CN215566147U (en) | 2021-05-10 | 2021-05-10 | Esterified steam waste heat power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078904A (en) * | 2019-05-23 | 2019-08-02 | 上海聚友化工有限公司 | A kind of polyester esterification steam waste heat utilizes method and device |
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2021
- 2021-05-10 CN CN202120989161.3U patent/CN215566147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078904A (en) * | 2019-05-23 | 2019-08-02 | 上海聚友化工有限公司 | A kind of polyester esterification steam waste heat utilizes method and device |
| CN110078904B (en) * | 2019-05-23 | 2023-11-07 | 上海聚友化工有限公司 | Polyester esterification steam waste heat utilization method and device |
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