CN203771772U - Residual heat recovery system for discontinuous impurity-containing waste water source of chemical plant - Google Patents
Residual heat recovery system for discontinuous impurity-containing waste water source of chemical plant Download PDFInfo
- Publication number
- CN203771772U CN203771772U CN201420006677.1U CN201420006677U CN203771772U CN 203771772 U CN203771772 U CN 203771772U CN 201420006677 U CN201420006677 U CN 201420006677U CN 203771772 U CN203771772 U CN 203771772U
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- China
- Prior art keywords
- water
- plate type
- pump
- heat exchanger
- type heat
- Prior art date
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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
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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
- 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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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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
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a residual heat recovery system for discontinuous impurity-containing waste water source of a chemical plant. The system comprises an absorption heat pump, a front water storage tank, a filtering system, a water pump, an air preheater and a plate type heat exchange device, wherein the absorption heat pump comprises a generator, an evaporator, an absorber and a condenser; the input of the generator is the external steam of the chemical plant, and the output of the generator is the condensing water; the hot waste water is changed into continuous hot waste water by the front water storage tank, the impurities are filtered by the filtering device, then the hot waste water is connected into the plate type heat exchange device and is used for heating the running water to form the circulating water among the evaporator, the water pump and the plate type heat exchange device, the clean water forms the circulating clean water through the absorber, the condenser, the water pump and the air preheater, the circulating clean water passes through the absorption heat pump, and is subjected to heat exchange in the air preheater, and the cold air is heated into the hot air. The system has the advantages that the recycling efficiency of heat energy is high and the like.
Description
Technical field
The utility model relates to a kind of chemical plant waste-heat recovery device, relates in particular to for the discontinuous and impure residual neat recovering system of the waste water source in chemical plant.
Background technology
For chemical plant, the low-temperature wastewater of its generation is by treatment system or directly discharge the huge heat-energy losses of meeting formation, makes chemical plant capacity usage ratio low, not only causes mass energy waste, has also seriously polluted environment simultaneously.Along with the development of heat pump techniques, the particularly appearance of large high-temperature water resource heat pump, makes chemical plant low-temperature wastewater waste heat recovery will become possibility.In addition, absorption heat pump formula is to rely on driving heat source operation, the temperature that absorbs low-temperature heat source water is transferred to the equipment of middle warm water, it when unit operation, is the temperature that continuously absorbs low-temperature heat source, but when there is cutout in low-temperature heat source water, namely can not provide continuously heat, and unit is now still in continuous heat absorption, the temperature of the heat exchanger of absorption heat pump low temperature water inlet front end will sharply decline so, until residual water freezing in pipe, after water build-ups ice, volume can become large, thereby burst low-temperature heat exchange device, whole system paralysis, and there is the problem of a large amount of impurity in the spent hot water in current chemical plant, greatly affect the efficiency of plate type heat exchanger, cannot make full use of existing spent hot water's heat.And existing hot-air acquisition methods is to obtain by the new wind of Steam Heating, this part steam need to spend to buy.
Utility model content
Technology of the present utility model is dealt with problems and is: the problem for existing for the discontinuous and impure residual neat recovering system in used heat water source in prior art, provides a kind of for the discontinuous and impure residual neat recovering system of the waste water source in chemical plant.
Technical solution of the present utility model is: a kind of for the discontinuous and impure residual neat recovering system of the waste water source in chemical plant, comprise absorption heat pump, front water tank, filter, air preheater, water pump and plate type heat exchanger, wherein absorption heat pump is divided into generator part, evaporator section, absorber part and condenser portion, generator part be input as chemical plant steam-out (SO), be output as condensed water; The output of evaporator section is connected with plate type heat exchanger, evaporator section be input as running water, running water forms recirculated water by evaporimeter, water pump and the plate type heat exchanger of absorption heat pump, this recirculated water absorbs heat from plate type heat exchanger, bring heat into after evaporimeter release heat, and then get back to plate type heat exchanger heat absorption; The spent hot water in chemical plant becomes continuous spent hot water, then after filter filters out impurities, is connected with plate type heat exchanger after storing by front water tank, by becoming the spent hot water of low temperature after plate type heat exchanger heat exchange, exports; Low temperature clear water is as the input of the absorber part of absorption heat pump, the output of absorber part is connected with the input of condenser, be spent hot water by front water tank and filter after in plate type heat exchanger its heat be constantly absorbed, then be discharged in evaporimeter, these heats are used for heating by absorption heat pump the low temperature clear water that enters absorber; Low temperature clear water is after absorption heat pump heat exchange, by water pump, become the clear water after heating, after air preheater, form circulation clear water, circulation clear water heats cold wind (new wind) in air preheater, output warm-air supply user, to meet user's requirement, save this part new wind-warm syndrome and risen the steam of required consumption, reach energy-conservation object.
The utility model advantage is compared with prior art: the utility model is realized waste heat recovery by the heat exchange method of absorption heat pump, reclaim the spent hot water in chemical plant, after spent hot water stores by front water tank, become continuous spent hot water, again after filter filters out impurities, be connected with plate type heat exchanger, with after plate type heat exchanger, tap water heating is formed to recirculated water, after being heated up by absorption heat pump, clear water passes through air preheater, by cold air heating, it is hot blast, to meet user's process requirements, whole system is realized discontinuous spent hot water's recycling, improve heat utilization rate, effectively save the energy.
Accompanying drawing explanation
Fig. 1 is described in the utility model for the discontinuous and impure residual neat recovering system structural representation of the waste water source in chemical plant.
The specific embodiment
A kind of for the discontinuous and impure residual neat recovering system of the waste water source in chemical plant, as shown in Figure 1, comprise absorption heat pump, front water tank, filter, air preheater, water pump and plate type heat exchanger, wherein absorption heat pump is divided into generator part, evaporator section, absorber part and condenser portion, generator part be input as chemical plant steam-out (SO), be output as condensed water; The output of evaporator section is connected with plate type heat exchanger, evaporator section be input as running water, running water becomes 20 degree or lower by the evaporimeter of water pump, absorption heat pump, then by plate type heat exchanger, form recirculated water, this recirculated water absorbs heat from plate type heat exchanger, bring heat into after evaporimeter release heat, and then get back to plate type heat exchanger heat absorption; After chemical plant 40 degree or higher spent hot water store by front water tank, become continuous spent hot water, after filter filters out impurities, be connected with plate type heat exchanger again, by becoming low temperature 20 degree or the lower spent hot water of temperature after plate type heat exchanger heat exchange, export; The clear water of low temperature 20 degree (mean annual temperature) is as the input of the absorber part of absorption heat pump, the output of absorber part is connected with the input of condenser, be spent hot water by front water tank and filter after in plate type heat exchanger its heat be constantly absorbed, then be discharged in evaporimeter, these heats are used for heating by absorption heat pump the low temperature clear water that enters absorber; Low temperature clear water is after absorption heat pump heat exchange, by water pump, become the clear water of rear 85 degree of heating, after air preheater, form circulation clear water, circulation clear water heats cold wind in air preheater, it by the cold air heating of 20 degree, is the hot blast of 70 degree, then supply with user, to meet user's requirement.
It should be noted that, because water tank is positioned at that side of the evaporator section of absorption heat pump, so be called front water tank.
The content not being described in detail in the utility model description belongs to the known prior art of professional and technical personnel in the field.
Claims (1)
1. one kind for the discontinuous and impure residual neat recovering system of the waste water source in chemical plant, it is characterized in that: comprise absorption heat pump, front water tank, filter, air preheater, water pump and plate type heat exchanger, wherein absorption heat pump is divided into generator part, evaporator section, absorber part and condenser portion, generator part be input as chemical plant steam-out (SO), be output as condensed water; The output of evaporator section is connected with plate type heat exchanger, evaporator section be input as running water, running water forms recirculated water by evaporimeter, water pump and the plate type heat exchanger of absorption heat pump, this recirculated water absorbs heat from plate type heat exchanger, bring heat into after evaporimeter release heat, and then get back to plate type heat exchanger heat absorption; The spent hot water in chemical plant becomes continuous spent hot water, then after filter filters out impurities, is connected with plate type heat exchanger after storing by front water tank, by becoming the spent hot water of low temperature after plate type heat exchanger heat exchange, exports; Low temperature clear water is as the input of the absorber part of absorption heat pump, the output of absorber part is connected with the input of condenser, be spent hot water by front water tank and filter after in plate type heat exchanger its heat be constantly absorbed, then be discharged in evaporimeter, these heats are used for heating by absorption heat pump the low temperature clear water that enters absorber; Low temperature clear water, after absorption heat pump heat exchange, becomes the clear water after heating by water pump, forms circulation clear water after air preheater, and circulation clear water heats cold wind in air preheater, output warm-air supply user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006677.1U CN203771772U (en) | 2014-01-06 | 2014-01-06 | Residual heat recovery system for discontinuous impurity-containing waste water source of chemical plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006677.1U CN203771772U (en) | 2014-01-06 | 2014-01-06 | Residual heat recovery system for discontinuous impurity-containing waste water source of chemical plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771772U true CN203771772U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006677.1U Expired - Fee Related CN203771772U (en) | 2014-01-06 | 2014-01-06 | Residual heat recovery system for discontinuous impurity-containing waste water source of chemical plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771772U (en) |
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2014
- 2014-01-06 CN CN201420006677.1U patent/CN203771772U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |