CN205638584U - Energy integration system that low temperature heat recovery is relevant - Google Patents
Energy integration system that low temperature heat recovery is relevant Download PDFInfo
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- CN205638584U CN205638584U CN201620424365.1U CN201620424365U CN205638584U CN 205638584 U CN205638584 U CN 205638584U CN 201620424365 U CN201620424365 U CN 201620424365U CN 205638584 U CN205638584 U CN 205638584U
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- 238000011084 recovery Methods 0.000 title abstract description 19
- 230000010354 integration Effects 0.000 title abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 8
- 238000009833 condensation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 33
- 239000006200 vaporizer Substances 0.000 claims description 22
- 238000004064 recycling Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229920001187 thermosetting polymer Polymers 0.000 abstract 1
- 238000000034 method Methods 0.000 description 21
- 230000005611 electricity Effects 0.000 description 19
- 230000008569 process Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000004899 motility Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011551 heat transfer agent Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses an energy integration system that low temperature heat recovery is relevant, include: the low temperature heat source for the production can supply recycle's low temperature heat, and carries through a carrier, first circulating pump, with the low temperature heat source links to each other, firstly use the hot cell crowd, respectively with the circulating pump with the low temperature heat source links to each other, retrieves and follows the low temperature heat of circulating pump output to to retrieve the low temperature heat the carrier returns again the low temperature heat source to absorb the low temperature heat, the evaporimeter, with the circulating pump with the low temperature heat source perhaps with the connection of hot cell crowd, utilize the low temperature heat right organic working medium in the evaporimeter adds thermosetting steam, the expander, with the evaporimeter links to each other, is used for making the vapor expansion acting, the condenser is used for the follow the inflation steam of expander output carries out condensation liquefaction, the second circulating pump is connected the condenser with the evaporimeter will be followed the condensate circulation of output in the condenser is leading -in the evaporimeter.
Description
Technical field
This utility model relates to the system integration technology field of energy regenerating, particularly to one by Conventional cryogenic recuperation of heat
Relevant energy integrated system is reclaimed to the Low Temperature Thermal of ORC generating integrated operation.
Background technology
The demand quickly increased along with economy and the development of oil Refining Technologies, the production capacity of refinery is continuously increased, and economizer pressure is also
Increase therewith.In terms of public work, the low temperature exhaust heat recycling supplemented as vapour system receives most attention, at present
For the recycling of low temperature exhaust heat, can be divided into and Low Temperature Thermal directly as " utilization at the same level " of heat source and is turned by Low Temperature Thermal
Turn to technique can power, " upgrading utilizes " of heat of cold or higher temperatures position.For different factories different device method also
It is not quite similar, reclaims low temperature exhaust heat the most economically so that it is utilization rate maximizes particularly critical.
In the utilization at the same level that Low Temperature Thermal reclaims, widely used using hot water as heat transfer agent, by setting up water station by a set of
Or the Low Temperature Thermal centralized recovery overlapping process unit, then replace the heating of low-temperature level steam with hot water, it is achieved low-temperature heat quantity effective more
Utilize.Also there is part factory to select suitable user according to position and the heat of thermal source, directly utilize processing medium and replace steam
Heat exchange.
Low Temperature Thermal reclaim upgrading Application way in, can use such as heat pump, cryogenic refrigeration, low temperature seawater desalination, low temperature bright
It agree the technology such as circulating generation.Wherein, organic Rankine bottoming cycle (ORC) generating is widely used in industrial waste heat recovery, solar thermal energy
On the fields such as generating.Organic working medium, using lower boiling Organic substance as generating working medium, is added by ORC power generation process by low-temperature heat source
Heat is gaseous state, and enters decompressor acting generating.The low-pressure low-temperature steam discharged from decompressor enters condenser, having after cooling
Machine working medium is by being pumped into vaporizer, it is achieved recycling of working medium.Between ORC power generation process heating system, thermic load is adjustable,
Can according to factory thermal source situation change allotment flexibly, but ORC generating the most generally to there is generating efficiency relatively low, phase specific investment is relatively
Greatly, thus the problem causing investment payback time length.
But, during Low Temperature Thermal reclaims " utilization at the same level ", due to thermal source and the thermic load base of hot trap in design process
Originally matching, heat transfer agent consumption is the most stable, when thermal source or hot trap are because of operating condition changes such as shutting down, the device underproduction
Time, overall low-temperature heat recovery system can produce fluctuation, poor to the adjustability in the whereabouts/source have more than needed/lacking heat,
Therefore the heat recovery efficiency of whole low-temperature heat recovery system can be reduced.
Comparing the process of directly heating, the ORC generating in " upgrading utilizes " possesses the feature that adjustability is strong, and it can basis
Thermal source change is allocated flexibly.But in ORC electricity generation system, owing to low-temperature heat source heating produces the temperature of organic steam, pressure
Power limits, and organic steam enthalpy is less, causes ORC generating efficiency low, and system overall thermal organic efficiency is relatively low.Meanwhile, ORC
The increasing of electricity generation system is built to be needed to invest the many aspects such as generating equipment, civil engineering, the system integration, compares ORC system overall
Relatively low heat recovery efficiency, the operation economy causing ORC electricity generation system is poor, the shortcoming of overall investment length payoff period.
Summary of the invention
It is not enough that the purpose of this utility model is to solve Operating condition adjustment motility when technique hot-water heating system is used alone, and
The problem that the operation economy that is used alone of ORC generating is poor, it is provided that a kind of Conventional cryogenic recuperation of heat is generated electricity mutually integrated with ORC
Complementary Low Temperature Thermal reclaims relevant energy integrated system.
For reaching above-mentioned purpose, this utility model provides a kind of Low Temperature Thermal to reclaim relevant energy integrated system, including:
Low-temperature heat source, for producing the low-temperature heat quantity being available for recycling, described low-temperature heat quantity is by entrained by a carrier；
First circulating pump, is connected with described low-temperature heat source, in order to realize the circulation of described low-temperature heat quantity；
First uses hot cell group, is connected with described circulating pump and described low-temperature heat source respectively, for reclaiming from described circulation
The low-temperature heat quantity of pump output, and return to described low-temperature heat source by reclaiming the described carrier after low-temperature heat quantity, to draw
Low-temperature heat quantity；
Vaporizer, one end is connected with described circulating pump, the other end and described low-temperature heat source or after taking heat with hot cell
Low-temperature heat source stream stock is connected, and utilizes the low-temperature heat quantity of output from described circulating pump to heat the organic working medium in described vaporizer
Form steam；
Decompressor, is connected with described vaporizer, is used for making described steam expansion do work；
Condenser, is connected with described decompressor, for the expansion steam exported from described decompressor is carried out condensation liquefaction；
Second circulating pump, connects described condenser and described vaporizer, is followed by the condensed fluid of output from described condenser
Ring imports described vaporizer.
Reclaim relevant energy integrated system according to the Low Temperature Thermal that the utility model proposes, also include steam condensate (SC) system
Uniting, it has two transmission routes, and wherein a transmission route is to make steam condensation water reclaim heat via second with hot cell group
Water treatment system is coagulated in rear entrance；Another transmission route is that steam condensation water is introduced directly into described vaporizer.
Reclaim relevant energy integrated system according to the Low Temperature Thermal that the utility model proposes, also include heating system, connect
Between described first circulating pump and described vaporizer.
Compared with prior art, this utility model has the advantages that
(1) low-temperature water heating system is organically combined by this utility model with ORC electricity generation system, has taken into full account that low-temperature water heating returns
Receive heat and influencing each other of heat is reclaimed in ORC generating, use rational control system, effectively improve technique hot-water heating system list
Solely during application, Operating condition adjustment motility is not enough, and the problem that the operation economy that is used alone of ORC is poor, improves system overall
Low Temperature Thermal organic efficiency.
(2) this utility model technique is flexible, can effectively select according to practice in factory and change heat list therein
Unit group, such as because of the discontinuity thermal source change that winter, summer condition change caused, can switch heat recovery system, flexibly to realize
The flexible operating of heat recovery system.
(3) this utility model can integrated deaerated water pre-heating system and low-temperature water heating system, greatly reduce in actual production dynamic
The steam consumption that power is relevant.
Accompanying drawing explanation
Fig. 1 is that the structure of the first specific embodiment that Low Temperature Thermal of the present utility model reclaims relevant energy integrated system is shown
It is intended to；
Fig. 2 is that the structure of the second specific embodiment that Low Temperature Thermal of the present utility model reclaims relevant energy integrated system is shown
It is intended to；
Fig. 3 is that the structure of the 3rd specific embodiment that Low Temperature Thermal of the present utility model reclaims relevant energy integrated system is shown
It is intended to.
Fig. 4 is that the structure of the 4th specific embodiment that Low Temperature Thermal of the present utility model reclaims relevant energy integrated system is shown
It is intended to.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under paying creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1, reclaim the first specific embodiment of relevant energy integrated system for Low Temperature Thermal of the present utility model
Structural representation.In this embodiment, this utility model uses low-temperature water heating recovery system and the integrated work of ORC electricity generation system
Skill, makes the integrated complementary of technique hot-water heating system and ORC electricity generation system, uses rational control system in order to solve process heat water system
System when being used alone Operating condition adjustment motility not enough, and the problem that the operation economy that is used alone of ORC generating is poor.
As it is shown in figure 1, this utility model use hot water by the heat centralized recovery of low-temperature heat source, wherein a plume stock according to
Thermic load required for the hot cell group of downstream carries out assignment of traffic, through low with returning low-temperature heat source circulation and stress after hot cell group
Temperature-heat-source heat.Heat after distribution is transferred to the vaporizer of ORC electricity generation system by another plume stock, after evaporator heat exchange
Hot water returns low-temperature heat source and takes heat, completes low-temperature water heating recovery system cyclic process.Shape after organic working medium heating in vaporizer
Becoming steam to enter decompressor acting generating, expander outlet steam, by supercool liquefaction after condenser, is delivered to steam by circulating pump
Send out device, complete ORC electricity generation system cyclic process.
In this embodiment, this utility model is to utilize the Low Temperature Thermal reclaimed that the deaerated water before entering oxygen-eliminating device is carried out first
Step preheating, it is adaptable to the deaerated water system in the deaerated water system of power station and device district.
Refer to Fig. 2, reclaim the second specific embodiment of relevant energy integrated system for Low Temperature Thermal of the present utility model
Structural representation.This embodiment combines with steam and condensate system simultaneously, can coagulate steam with hot cell group by second
Low-temperature heat quantity in water reclaims, it is possible to steam condensation water is introduced directly into vaporizer and enters follow-up ORC power generation process.
Fig. 3 is of the present utility model by enforcement mutually integrated with heating system for energy integrated system relevant for Low Temperature Thermal recovery
Example, Fig. 4 is the concrete reality that this utility model carries out effective recycling according to seasonal variations to thermals source such as discontinuity Low Temperature Steams
Execute example.
Data with a certain factory illustrate for case below.
This factory is original exists low-temperature heat source and as shown in table 1 by hot cell information, factory application circulating water low temperature
Thermal source, recirculated water consumption is 313t/h；Using 0.5MPag low-pressure steam heating hot cell, steam consumption is 30.4t/
h。
The original low-temperature heat source of table 1 factory and use hot cell information
Structure in this factory application this utility model Fig. 1: employing hot water is by the heat centralized recovery of low-temperature heat source, wherein
One plume stock carries out assignment of traffic according to the thermic load required for the hot cell of downstream, through following with return low-temperature heat source after hot cell
Loopback receives heat of low-temperature heat source.Heat after distribution is transferred to the vaporizer of ORC electricity generation system by another plume stock, through vaporizer
Hot water after heat exchange returns low-temperature heat source and takes heat, completes low-temperature water heating recovery system cyclic process.Organic working medium in vaporizer
Forming steam after heating and enter decompressor acting generating, expander outlet steam is by supercool liquefaction after condenser, by circulating pump
It is delivered to vaporizer, completes ORC electricity generation system cyclic process.Each stream stock information data is as shown in table 2.
Table 2 flows stock information table
Factory is after application patent technique, and the energy-output ratio of this part is as shown in table 3.
Table 3 uses public work energy resource consumption contrast before and after patent
This utility model, while reducing energy consumption, compares more individually employing low-temperature water heating system, in the feelings of working conditions change
There is under condition good adjustability.Now this factory hot cell carries out maintenance maintenance, then the flow of stream stock 4 and stream stock 5 will
It is adjusted to 0.If factory uses single low-temperature water heating system, now standby cold owing to lacking with needing in hot cell system to introduce
Low-temperature water heating heat is removed by radiator cooler.Factory uses patent low-temperature water heating system and ORC electricity generation system integrated technique, now may be used
Original stream stock 3 is fully incorporated ORC electricity generation system, ORC electricity generation system after taking heat, returns and again take heat at low-temperature heat source.
Table 4 is under the conditions of this kind of working conditions change, uses independent low-temperature water heating system, integrated low-temperature water heating system and ORC electricity generation system
Energy consumption comparison.
The energy-output ratio that during table 4 working conditions change, independent low-temperature water heating system, integrated low-temperature water heating generate electricity with ORC
As shown in Table 4, when low-temperature water heating system downstream appearance heat fluctuation/change, low-temperature water heating is used to generate electricity with ORC
Integrated system still can realize the efficient recovery of heat energy, and when individually using low-temperature water heating system, needs supplementary payments original
The refrigeration costs of hot water.
In sum, this utility model utilizes low temperature exhaust heat and the system integration of ORC generating with hot water for communication medium recycling, increases
Strong in the face of the control ability of different working condition systems, improve the utilization rate of low temperature exhaust heat.User can meet Low Temperature Thermal heat list
Under unit's group's demand, using control system, heat is reasonable, effective distribution is with between hot cell group and ORC electricity generation system.At collection
While becoming low-temperature water heating recovery system and ORC electricity generation system, also can the steam feedwater of the most integrated inside plants and coagulate water system
System, process heat water circulation system, heating system, seasonal variations produce the low-temperature heat source of discontinuity and the low-pressure steam to emptying
Recycling.And, this utility model, when low-temperature heat source heat demand changes, can realize the reasonable tune of low-temperature heat quantity
Join, thus heat recovery efficiency that system overall, safeguards system stable operation are effectively ensured.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, module in accompanying drawing or
Flow process is not necessarily implemented necessary to this utility model.
One of ordinary skill in the art will appreciate that: the module in device in embodiment can describe according to embodiment divides
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
The module stating embodiment can merge into a module, it is also possible to is further split into multiple submodule.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；
Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that:
Technical scheme described in previous embodiment still can be modified by it, or is equal to wherein portion of techniques feature
Replace；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model embodiment technical scheme
Spirit and scope.
Claims (3)
1. a Low Temperature Thermal reclaims relevant energy integrated system, it is characterised in that including:
Low-temperature heat source, for producing the low-temperature heat quantity being available for recycling, described low-temperature heat quantity is by entrained by a carrier；
First circulating pump, is connected with described low-temperature heat source, in order to realize the circulation of described low-temperature heat quantity；
First uses hot cell group, is connected with described circulating pump and described low-temperature heat source respectively, defeated from described circulating pump for reclaiming
The low-temperature heat quantity gone out, and return to described low-temperature heat source by reclaiming the described carrier after low-temperature heat quantity, to draw low temperature
Heat；
Vaporizer, one end is connected with described circulating pump, the other end and described low-temperature heat source or take the low temperature after heat with hot cell
Heat source stream stock is connected, and utilizes the low-temperature heat quantity of output from described circulating pump to be thermally formed the organic working medium in described vaporizer
Steam；
Decompressor, is connected with described vaporizer, is used for making described steam expansion do work；
Condenser, is connected with described decompressor, for the expansion steam exported from described decompressor is carried out condensation liquefaction；
Second circulating pump, connects described condenser and described vaporizer, is led by the condensate circulation of output from described condenser
Enter described vaporizer.
Low Temperature Thermal the most according to claim 1 reclaims relevant energy integrated system, it is characterised in that also include that steam is cold
Condensate system, it has two transmission routes, and wherein a transmission route is to make steam condensation water return with hot cell group via second
Solidifying water treatment system is entered after receiving heat；Another transmission route is that steam condensation water is introduced directly into described vaporizer.
Low Temperature Thermal the most according to claim 1 reclaims relevant energy integrated system, it is characterised in that also include heating system
System, is connected between described first circulating pump and described vaporizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620424365.1U CN205638584U (en) | 2016-05-11 | 2016-05-11 | Energy integration system that low temperature heat recovery is relevant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620424365.1U CN205638584U (en) | 2016-05-11 | 2016-05-11 | Energy integration system that low temperature heat recovery is relevant |
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| CN205638584U true CN205638584U (en) | 2016-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739123A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Low-temperature heat recovery process for refinery plant |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739123A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Low-temperature heat recovery process for refinery plant |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 602, unit 2, floor 6, No. 10, Jintong West Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Yineng Gaoke Technology Co.,Ltd. Address before: Room 404, block B, Jinqiu international building, No. 6, Zhichun Road, Haidian District, Beijing 100088 Patentee before: Beijing Yineng Gaoke Technology Co.,Ltd. |