CN210107805U - Waste heat application equipment for air separation workshop - Google Patents
Waste heat application equipment for air separation workshop Download PDFInfo
- Publication number
- CN210107805U CN210107805U CN201920462609.9U CN201920462609U CN210107805U CN 210107805 U CN210107805 U CN 210107805U CN 201920462609 U CN201920462609 U CN 201920462609U CN 210107805 U CN210107805 U CN 210107805U
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- CN
- China
- Prior art keywords
- pipeline
- air separation
- air
- inlet
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000926 separation method Methods 0.000 title claims abstract description 35
- 239000002918 waste heat Substances 0.000 title claims abstract description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Substances OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims description 13
- 239000010908 plant waste Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model relates to the technical field of air separation, in particular to an air separation workshop waste heat application device, which is characterized in that a cooling tower and an absorption refrigerator with a power source of dead steam of an air cooling island are added on the basis of an original air compressor cooler and a booster cooler to further cool compressed air entering an air separation tower, so that the temperature of the compressed air is ensured not to be too high when the temperature of external air rises, and the production efficiency of the air separation tower is further ensured; the technical scheme further applies the residual heat energy of the coal-to-methanol plant, can improve the production efficiency of the air separation tower, and has strong application prospect.
Description
Technical Field
The utility model relates to an air separation technical field, concretely relates to waste heat application equipment in air separation workshop.
Background
In the technical field of methanol preparation from coal, air needs to be separated, the obtained pure oxygen is applied to a subsequent working section to prepare methanol, in an air separation device, a compressor is driven by a steam turbine, exhaust steam of the steam turbine adopts air cooling island condensation, and waste heat is not further utilized. In summer, the temperature of the ambient temperature is high, which causes the temperature of the cooling water to rise, and the cold loss of the system is also large compared with the winter, which causes the oxygen yield of the air separation device to be reduced compared with the winter. The reduction of the oxygen yield causes the methanol productivity to be limited, the energy consumption for producing each ton of methanol at high temperature is higher than that at low temperature, the yield is reduced while the cost is improved, and the income and profit rate of enterprises in summer are greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the yield of the traditional air separation system is greatly influenced by the external temperature and the waste of the waste heat of the exhaust steam, the following technical scheme is proposed:
an air separation workshop waste heat application device comprises a heat exchange device (1), a cooling tower (2) and a heat absorption type refrigerator (3); an inlet of a medium pipeline of the heat exchange device (1) is connected with a compressed air pipeline of the methanol production air separation system, an outlet of the medium pipeline of the heat exchange device (1) is connected with an air inlet of an air compressor or a supercharger of the methanol production air separation system, an inlet of a cooling liquid circulation pipeline of the heat exchange device (1) is connected with a cold water outlet of the cooling tower (2), and an outlet of the cooling liquid circulation pipeline of the heat exchange device (1) is connected with an inlet to be cooled of the cooling tower (2); an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a dead steam pipeline, and an outlet of a refrigerating end of the heat absorption type refrigerating machine (3) is connected with an inlet of a cooling liquid pipeline of a cooler (4) of an air compressor or a supercharger of a methanol production air separation system; the outlet of the refrigeration end of the heat absorption type refrigerator (3) is connected with the inlet of a cooling liquid pipeline of a cooler (4) of the methanol production air separation system.
Further limit is as follows: an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a steam exhaust pipeline of the air cooling island, and an outlet of the power pipeline of the heat absorption type refrigerating machine (3) is connected with an inlet of the condensate station.
Further limit is as follows: the exhaust steam pipeline is a steam exhaust pipeline of a steam turbine driving system of an air compressor or a supercharger.
Further limit is as follows: and the outlet of a medium pipeline of the heat exchange device (1) is connected with the inlet of a medium pipeline of a cooler (4) of the air separation system for producing the methanol.
Beneficial effects of the utility model
According to the technical scheme, a heat exchanger and an absorption refrigerator are additionally arranged on the basis of the existing air compressor device, firstly, the heat exchanger is used for exchanging heat and reducing the temperature of compressed air before entering an air compressor and a supercharger, then, water is cooled through an absorption refrigeration mechanism, and the compressed air is further cooled in the air compressor and the supercharger; according to the technical scheme, the working strength of the supercharger and the air compressor is greatly reduced by reducing the temperature of air entering the air compressor and the supercharger, and the temperature of compressed air entering the air cooling tower is further reduced by cooling the cooling liquid entering the supercharger and the cooler of the air compressor by using the absorption refrigerator; the following positive effects are achieved: 1. the power consumption is saved; 2. the yield of compressed air is increased; 3. the temperature of the compressed air is reduced; 4. the subsequent air separation efficiency is improved.
The equipment with the highest energy consumption in the technical scheme is the absorption type refrigerating machine, and the power source of the absorption type refrigerating machine adopts the exhaust steam of the steam turbine, so that the heat power resources are fully utilized, and the yield of the methanol is improved.
Drawings
FIG. 1 is an installation diagram of a compressed air cooling device of an air separation plant
Detailed Description
The utility model is explained in detail according to the attached drawings of the specification:
example 1: an air separation plant waste heat application apparatus: comprises a heat exchange device (1), a cooling tower (2) and an endothermic refrigerator (3); an inlet of a medium pipeline of the heat exchange device (1) is connected with a compressed air pipeline of the methanol production air separation system, an outlet of the medium pipeline of the heat exchange device (1) is connected with an air inlet of an air compressor or a supercharger of the methanol production air separation system, an inlet of a cooling liquid circulation pipeline of the heat exchange device (1) is connected with a cold water outlet of the cooling tower (2), and an outlet of the cooling liquid circulation pipeline of the heat exchange device (1) is connected with an inlet to be cooled of the cooling tower (2); an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a dead steam pipeline, and an outlet of a refrigerating end of the heat absorption type refrigerating machine (3) is connected with an inlet of a cooling liquid pipeline of a cooler (4) of an air compressor or a supercharger of a methanol production air separation system; the outlet of the refrigeration end of the heat absorption type refrigerator (3) is connected with the inlet of a cooling liquid pipeline of a cooler (4) of the methanol production air separation system.
Example 2: an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a steam exhaust pipeline of the air cooling island, and an outlet of the power pipeline of the heat absorption type refrigerating machine (3) is connected with an inlet of the condensate station.
Example 3: the exhaust steam pipeline is a steam exhaust pipeline of a steam turbine driving system of an air compressor or a supercharger.
Example 4: and the outlet of a medium pipeline of the heat exchange device (1) is connected with the inlet of a medium pipeline of a cooler (4) of the air separation system for producing the methanol.
Claims (4)
1. The utility model provides an air separation workshop waste heat application equipment which characterized in that: comprises a heat exchange device (1), a cooling tower (2) and an endothermic refrigerator (3); an inlet of a medium pipeline of the heat exchange device (1) is connected with a compressed air pipeline of the methanol production air separation system, an outlet of the medium pipeline of the heat exchange device (1) is connected with an air inlet of an air compressor or a supercharger of the methanol production air separation system, an inlet of a cooling liquid circulation pipeline of the heat exchange device (1) is connected with a cold water outlet of the cooling tower (2), and an outlet of the cooling liquid circulation pipeline of the heat exchange device (1) is connected with an inlet to be cooled of the cooling tower (2); an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a dead steam pipeline, and an outlet of a refrigerating end of the heat absorption type refrigerating machine (3) is connected with an inlet of a cooling liquid pipeline of a cooler (4) of an air compressor or a supercharger of a methanol production air separation system; the outlet of the refrigeration end of the heat absorption type refrigerator (3) is connected with the inlet of a cooling liquid pipeline of a cooler (4) of the methanol production air separation system.
2. The air separation plant waste heat utilization apparatus of claim 1, wherein: an inlet of a power pipeline of the heat absorption type refrigerating machine (3) is connected with a steam exhaust pipeline of the air cooling island, and an outlet of the power pipeline of the heat absorption type refrigerating machine (3) is connected with an inlet of the condensate station.
3. The air separation plant waste heat utilization apparatus of claim 2, wherein: the exhaust steam pipeline is a steam exhaust pipeline of a steam turbine driving system of an air compressor or a supercharger.
4. The air separation plant waste heat utilization apparatus of claim 2, wherein: and the outlet of a medium pipeline of the heat exchange device (1) is connected with the inlet of a medium pipeline of a cooler (4) of the air separation system for producing the methanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462609.9U CN210107805U (en) | 2019-04-08 | 2019-04-08 | Waste heat application equipment for air separation workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462609.9U CN210107805U (en) | 2019-04-08 | 2019-04-08 | Waste heat application equipment for air separation workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210107805U true CN210107805U (en) | 2020-02-21 |
Family
ID=69535001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920462609.9U Active CN210107805U (en) | 2019-04-08 | 2019-04-08 | Waste heat application equipment for air separation workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210107805U (en) |
-
2019
- 2019-04-08 CN CN201920462609.9U patent/CN210107805U/en active Active
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