CN205677679U - Residual neat recovering system with liquefied ammonia as medium - Google Patents
Residual neat recovering system with liquefied ammonia as medium Download PDFInfo
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- CN205677679U CN205677679U CN201620580886.6U CN201620580886U CN205677679U CN 205677679 U CN205677679 U CN 205677679U CN 201620580886 U CN201620580886 U CN 201620580886U CN 205677679 U CN205677679 U CN 205677679U
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Abstract
Residual neat recovering system with liquefied ammonia as medium of the present utility model, including: low pressure storage tank, ammonia pump, vaporizer, heat exchanger, 3rd entrance of heat exchanger is connected with the second outlet of vaporizer by the second pipeline, 4th entrance of heat exchanger is connected with waste heat input pipe, 3rd outlet of heat exchanger is connected with Residual heat removal pipe, also include decompressor, the import of decompressor is connected with the 4th outlet of heat exchanger by the 3rd pipeline, also include the condenser that the gas ammonia cooling for making decompressor export is liquefied, 5th entrance of condenser is connected with the outlet of decompressor by the 4th pipeline, 6th entrance of condenser enters pipe with cooling water and is connected, 5th outlet of condenser goes out pipe with cooling water drainage and is connected, 6th outlet of condenser is connected with low pressure storage tank.The technical solution of the utility model utilizes the liquefied ammonia being easier to obtain to be cycle fluid, completes the recycling to waste heat of plant, and exports in electric energy mode, can improve the economic benefit of factory.
Description
Technical field
This utility model relates to industrial waste heat recovery field, particularly relates to a kind of waste heat with liquefied ammonia as medium and returns
Receipts system.
Background technology
Ammonia is a kind of important industrial chemicals, convenient for transport and storage, generally by the gas ammonia of gaseous state by pressurization or cold
But liquid ammonia is obtained.The synthesis of ammonia is last procedure of Ammonia Production, and its task is at catalyst by hydrogen nitrogen mixed gas
Effect under synthesize ammonia.For synthesis system, liquid ammonia is i.e. its product.Ammonia synthesis process can according to operation pressure
To be divided into high-pressure process, middle-pressure process and low-pressure process.Owing to middle-pressure process has advantage technically and economically, therefore most domestic
Small-sized synthesis ammonia plant mainly uses middle-pressure process to carry out ammonia synthesis.
After ammonia synthesis reaction terminates, synthesis gas is discharged by synthetic tower, the cooled high-pressure liquid ammonia of isolating of synthesis gas, high pressure liquid
The pressure that ammonia is decompressed to about 2MPa by choke valve enters storage tank storage.
The utilization of waste heat of plant is a significant problem, prior art lacks a kind of simple in construction, easy and simple to handle with
Liquefied ammonia is the residual neat recovering system of medium.
Utility model content
It is higher that the technical problems to be solved in the utility model is to provide a kind of efficiency, can well recovery waste heat with
Liquefied ammonia is the residual neat recovering system of medium.
Residual neat recovering system with liquefied ammonia as medium of the present utility model, including:
For storing the low pressure storage tank of liquefied ammonia；
Utilize waste heat that liquefied ammonia is heated, the vaporizer making liquid ammonia vaporization be gas ammonia, the first entrance of described vaporizer
Being connected with low pressure storage tank by the first pipeline, the second entrance of described vaporizer is connected with waste heat input pipe, the first of vaporizer
Outlet is connected with Residual heat removal pipe；
Utilizing the heat exchanger that gas ammonia is heated by waste heat, the 3rd entrance of described heat exchanger passes through the second pipeline and evaporation
Second outlet of device connects, and the 4th entrance of heat exchanger is connected with waste heat input pipe, the 3rd outlet and Residual heat removal of heat exchanger
Pipe connects；
The decompressor that the gas ammonia utilizing heat exchanger to export does work, the 3rd pipeline and heat exchanger is passed through in the import of described decompressor
The 4th outlet connect；
The condenser liquefied for the gas ammonia cooling making decompressor export, the 5th entrance of described condenser is by the 4th pipe
Road is connected with the outlet of decompressor, and the 6th entrance of condenser enters pipe with cooling water and is connected, and the 5th outlet of condenser is with cold
But water discharge pipe connects, and the 6th outlet of condenser is connected with low pressure storage tank.
Residual neat recovering system with liquefied ammonia as medium of the present utility model, wherein, also includes:
For the decelerator that transmission rotating speed is reduced, it is connected with decompressor；
For changes mechanical energy being become the electromotor of electric energy, it is connected with decelerator.
Residual neat recovering system with liquefied ammonia as medium of the present utility model, wherein, also includes for making liquefied ammonia pressure raise
Pump, described pump is arranged on described first pipeline.
The technical solution of the utility model utilizes the liquefied ammonia being easier to obtain to be cycle fluid, completes the recovery to waste heat of plant
Utilize, and export in electric energy mode, the economic benefit of factory can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the residual neat recovering system with liquefied ammonia as medium of the present utility model.
Detailed description of the invention
As it is shown in figure 1, the residual neat recovering system with liquefied ammonia as medium of the present utility model, including:
For storing the low pressure storage tank ST1 of liquefied ammonia；
Utilize waste heat that liquefied ammonia is heated, first entrance of the vaporizer E1, vaporizer E1 that make liquid ammonia vaporization be gas ammonia
Being connected with low pressure storage tank ST1 by the first pipeline, second entrance of vaporizer E1 is connected with waste heat input pipe, the first of vaporizer
Outlet is connected with Residual heat removal pipe；
Utilizing the heat exchanger E2 that gas ammonia is heated by waste heat, the 3rd entrance of heat exchanger passes through the second pipeline and vaporizer
Second outlet connect, the 4th entrance of heat exchanger is connected with waste heat input pipe, heat exchanger the 3rd export and Residual heat removal pipe
Connect；
The decompressor T1 that the gas ammonia utilizing heat exchanger to export does work, the 3rd pipeline and heat exchanger is passed through in the import of decompressor T1
The 4th outlet connect；
For making the 5th entrance of the condenser E3, condenser E3 of gas ammonia cooling liquefaction that decompressor exports by the 4th pipe
Road is connected with the outlet of decompressor T1, and the 6th entrance of condenser E3 enters pipe with cooling water and is connected, and the 5th of condenser E3 goes out
Mouth goes out pipe with cooling water drainage and is connected, and the 6th outlet of condenser E3 is connected with low pressure storage tank ST1.
Residual neat recovering system with liquefied ammonia as medium of the present utility model, wherein, also includes:
For the decelerator that transmission rotating speed is reduced, it is connected with decompressor T1；
For changes mechanical energy being become the electromotor M of electric energy, it is connected with decelerator.
Residual neat recovering system with liquefied ammonia as medium of the present utility model, wherein, also includes for making liquefied ammonia pressure raise
Pump P1, pump P1 be arranged on the first pipeline.
Residual neat recovering system with liquefied ammonia as medium of the present utility model utilizes waste heat by liquid ammonia vaporization and to continue with remaining
Gas ammonia after vaporization is continued to be heated to superheat state by heat；The gas ammonia expansion work of high pressure-temperature, by energy input to electromotor
Generating；Low-pressure low-temperature gas ammonia cooling liquefied storage after acting；Low pressure liquefied ammonia boosts to vaporizer, completes circulation.
The utility model has the advantages that: the waste heat used heat in factory is reclaimed, utilize efficient expansion machine to drive generating
Machine generates electricity, and improves factory economy benefit.
The vaporizer E1 and heat exchanger E2 of the residual neat recovering system with liquefied ammonia as medium of the present utility model can be plate wing
Formula heat exchanger or plate type heat exchanger or shell-and-tube heat exchanger, the medium of the waste heat of utilization can be steam, hot water, flue gas, tail gas
Waste heat or above several combination.
The decompressor T1 of the residual neat recovering system with liquefied ammonia as medium of the present utility model can as screw expander, turbine
Decompressor, scroll expander or piston expansion engine, it is also possible to be unit single-stage, single machine with variable speed series connection, multi-machine parallel connection, multimachine string
Connection or the most several combinations.
Decelerator can be single-stage or multistage, it is also possible to for cylindrical gear reducer, conical gear reducer or circular cone
Cylinder Gear running wheel reductor.
The decompressor working method of the residual neat recovering system with liquefied ammonia as medium of the present utility model can as multiple expansion,
Can also expand continuously for inter-stage, it is also possible to inter-stage is extracted out and carried out heat exchange with afterheat heat exchanger, it is also possible to be both the above mode
Combination.
The embodiment utilizing the residual neat recovering system with liquefied ammonia as medium of the present utility model carry out waste heat recovery include with
Lower step:
Room temperature, the liquefied ammonia of 8MPa (a) enter vaporizer E1 by pipeline, are heated to 130 DEG C, liquid ammonia vaporization；High Temperature High Pressure
Gas ammonia enters heat exchanger E2 by pipeline, is heated to 170 DEG C, enters decompressor T1 by pipeline and carries out expansion work, gas ammonia temperature
Degree pressure drop as little as 50 DEG C, 18bar (a), gas ammonia is promoted decompressor T1 to rotate rear output shaft merit, is reduced by rotating speed by decelerator
To 3000rpm, drive electromotor M generating.Gas ammonia entrance condenser E3 after temperature, pressure reduces is cooled to less than 40 DEG C liquefaction,
Entering low pressure storage tank ST1 to store, low pressure storage tank ST1 is connected with pump P1 by pipeline, and low pressure liquefied ammonia pressure is improved by pump P1, conveying
Circulation is completed to vaporizer E1.
Below it is only preferred implementation of the present utility model, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (3)
1. the residual neat recovering system with liquefied ammonia as medium, it is characterised in that including:
For storing the low pressure storage tank of liquefied ammonia；
Utilizing waste heat to heat liquefied ammonia, the vaporizer making liquid ammonia vaporization be gas ammonia, the first entrance of described vaporizer passes through
First pipeline is connected with low pressure storage tank, and the second entrance of described vaporizer is connected with waste heat input pipe, the first outlet of vaporizer
It is connected with Residual heat removal pipe；
Utilizing the heat exchanger that gas ammonia is heated by waste heat, the 3rd entrance of described heat exchanger is by the second pipeline and vaporizer
Second outlet connects, and the 4th entrance of heat exchanger is connected with waste heat input pipe, the 3rd outlet of heat exchanger and Residual heat removal Guan Lian
Connect；
Utilize the decompressor of the gas ammonia acting that heat exchanger exports, the import of described decompressor by the 3rd pipeline and heat exchanger the
Four outlets connect；
For making the condenser of gas ammonia cooling liquefaction that decompressor exports, the 5th entrance of described condenser by the 4th pipeline with
The outlet of decompressor connects, and the 6th entrance of condenser enters pipe with cooling water and is connected, the 5th outlet of condenser and cooling water
Discharge pipe connects, and the 6th outlet of condenser is connected with low pressure storage tank.
2. the residual neat recovering system with liquefied ammonia as medium as claimed in claim 1, it is characterised in that also include:
For the decelerator that transmission rotating speed is reduced, it is connected with decompressor；
For changes mechanical energy being become the electromotor of electric energy, it is connected with decelerator.
3. the residual neat recovering system with liquefied ammonia as medium as claimed in claim 2, it is characterised in that also include for making liquefied ammonia
The pump that pressure raises, described pump is arranged on described first pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580886.6U CN205677679U (en) | 2016-06-15 | 2016-06-15 | Residual neat recovering system with liquefied ammonia as medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580886.6U CN205677679U (en) | 2016-06-15 | 2016-06-15 | Residual neat recovering system with liquefied ammonia as medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205677679U true CN205677679U (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620580886.6U Active CN205677679U (en) | 2016-06-15 | 2016-06-15 | Residual neat recovering system with liquefied ammonia as medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205677679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427484A (en) * | 2021-12-31 | 2022-05-03 | 华中科技大学 | Direct air cooling system for ammonia-doped power plant by using ammonia cooling energy |
| CN114791119A (en) * | 2022-05-25 | 2022-07-26 | 宁波市成大机械研究所 | Heating system utilizing internal combustion waste heat for pressurization |
-
2016
- 2016-06-15 CN CN201620580886.6U patent/CN205677679U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427484A (en) * | 2021-12-31 | 2022-05-03 | 华中科技大学 | Direct air cooling system for ammonia-doped power plant by using ammonia cooling energy |
| CN114427484B (en) * | 2021-12-31 | 2022-12-02 | 华中科技大学 | Direct air cooling system for ammonia-doped power plant by using ammonia cooling energy |
| CN114791119A (en) * | 2022-05-25 | 2022-07-26 | 宁波市成大机械研究所 | Heating system utilizing internal combustion waste heat for pressurization |
| CN114791119B (en) * | 2022-05-25 | 2024-01-12 | 四联智能技术股份有限公司 | Heat supply system utilizing internal combustion waste heat for pressurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Boyun Inventor after: Ding Shengjun Inventor before: Xu Xiaoqin Inventor before: Yang Boyun |
|
| CB03 | Change of inventor or designer information |