CN105758032A - Ethylene glycol refrigerating unit energy conservation method - Google Patents

Ethylene glycol refrigerating unit energy conservation method Download PDF

Info

Publication number
CN105758032A
CN105758032A CN201610260406.2A CN201610260406A CN105758032A CN 105758032 A CN105758032 A CN 105758032A CN 201610260406 A CN201610260406 A CN 201610260406A CN 105758032 A CN105758032 A CN 105758032A
Authority
CN
China
Prior art keywords
freezing unit
described freezing
load
ethylene glycol
compression machine
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.)
Pending
Application number
CN201610260406.2A
Other languages
Chinese (zh)
Inventor
胡波
李长胜
陈清
吴秀艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Huachang New Material Technology Co Ltd
Original Assignee
Zhangjiagang Huachang New Material Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Huachang New Material Technology Co Ltd filed Critical Zhangjiagang Huachang New Material Technology Co Ltd
Priority to CN201610260406.2A priority Critical patent/CN105758032A/en
Publication of CN105758032A publication Critical patent/CN105758032A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Lubricants (AREA)

Abstract

The invention provides an ethylene glycol refrigerating unit load regulation method. By the adoption of the method, electricity consumption can be reduced, energy is saved, and efficiency is high. Two identical compression machine heads are adopted for a unit, an evaporator is shared, automatic variable-frequency adjustment of the rotating speed of the compression machine heads can be achieved according to set refrigeration water feeding temperature, automatic starting and stopping can be achieved, and meanwhile, people can choose to start one compression machine head or two compression machine heads automatically according to production load.

Description

A kind of ethylene glycol freezing unit power-economizing method
Technical field
The invention belongs to chemical field, be specifically related to the load adjusting method of a kind of ethylene glycol freezing unit, it is possible to reduce power consumption, efficient energy-saving.
Background technology
Building a conservation-minded society is one of China's fundamental state policy, production energy-saving enterprise implement low cost strategy especially, the important channel enhanced the competitiveness.In conjunction with enterprise present situation, promote and adopt advanced, ripe new technique, new equipment, new technology, scientific and reasonable production energy-saving, it is achieved utilization of energy maximizing the benefits, be one of the important content of enterprise development.
Freezing unit can be widely applied to the industries such as medicine, chemical industry, metallurgy, beverage/food, artificial environment, provides middle low temperature and the high temperature freezing environment of-35 DEG C～-25 DEG C of high-quality for its technical process.But this plant capacity is high, power consumption is big, it is necessary to rational modification is to improve operational energy efficiency ratio.
Summary of the invention
It is an object of the invention to optimize the load control system of ethylene glycol freezing unit, can be adjusted according to producing required load, load regulation range is big, and power consumption, efficient energy-saving can be greatly reduced.
This freezing unit refrigerating capacity 1512KW, adopts cold-producing medium R22, refrigerating medium 20% glycol water, can produce 300m3The chilled water of/h, Inlet and outlet water temperature 5 DEG C/0 DEG C, produce for propane-propylene separating and reclaiming device and need.
Unit adopts two identical compressor heads, and power is 220KW, and vaporizer common group synthesizes one.Unit adopts PLC full-automatic control system, can according to coolant-temperature gage on the chilled water set, and automatic frequency-conversion regulates the rotating speed of compressor head, and can realize automatic start-stop function.According to the size producing load, can automatically select and singly open a compressor head, still open two compressors simultaneously.
The advantage of scheme provided by the present invention: 1, selecting Double-head, load regulation range is bigger；
2, PLC Automatic Control, it is achieved automatic start-stop function.
Accompanying drawing explanation
Fig. 1 freezing unit operation schematic diagram
Detailed description of the invention
Embodiment 1
Certain octyl alconyl project domestic, the freezing unit of propane-propylene separating and reclaiming device therein, have employed method provided by the invention, when yield is identical, unit year power consumption reduction by 20%.
Embodiment 2
Certain octyl alconyl project domestic, the freezing unit of propane-propylene separating and reclaiming device therein, have employed method provided by the invention, open two compressors when producing the busy season, when production task is lighter, singly open a compressor, total power consumption reduces by 18%.

Claims (10)

1. a load adjusting method for ethylene glycol freezing unit, is characterized by, can be adjusted according to producing required load, and load regulation range is big, and power consumption, efficient energy-saving can be greatly reduced.
2. the method for claim 1, is characterized by, described freezing unit refrigerating capacity is 1512KW.
3. the method for claim 1, is characterized by, described freezing unit adopts cold-producing medium R22.
4. the method for claim 1, is characterized by, described freezing unit adopts refrigerating medium 20% glycol water.
5. the method for claim 1, is characterized by, described freezing unit produces 300m3The chilled water of/h.
6. the method for claim 1, is characterized by, described freezing unit Inlet and outlet water temperature is 5 DEG C/0 DEG C.
7. the method for claim 1, is characterized by, described freezing unit is for propane-propylene separating and reclaiming device.
8. the method for claim 1, is characterized by, described freezing unit adopts two identical compressor heads, and power is 220KW, and vaporizer common group synthesizes one.
9. the method for claim 1, is characterized by, described freezing unit adopts PLC full-automatic control system, can according to coolant-temperature gage on the chilled water set, and automatic frequency-conversion regulates the rotating speed of compressor head, and can realize automatic start-stop function.
10. the method for claim 1, is characterized by, described freezing unit according to the size producing load, can automatically select and singly open a compressor head, still open two compressors.
CN201610260406.2A 2016-04-25 2016-04-25 Ethylene glycol refrigerating unit energy conservation method Pending CN105758032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610260406.2A CN105758032A (en) 2016-04-25 2016-04-25 Ethylene glycol refrigerating unit energy conservation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610260406.2A CN105758032A (en) 2016-04-25 2016-04-25 Ethylene glycol refrigerating unit energy conservation method

Publications (1)

Publication Number Publication Date
CN105758032A true CN105758032A (en) 2016-07-13

Family

ID=56324848

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610260406.2A Pending CN105758032A (en) 2016-04-25 2016-04-25 Ethylene glycol refrigerating unit energy conservation method

Country Status (1)

Country Link
CN (1) CN105758032A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286246A (en) * 2016-09-12 2017-01-04 珠海格力电器股份有限公司 A kind of control method of compressor assembly
CN108332380A (en) * 2018-01-29 2018-07-27 青岛海尔空调电子有限公司 Air-cooled magnetic suspension air-conditioner set and its control method
CN109337655A (en) * 2018-10-08 2019-02-15 成都毅诚机电工程有限公司 High-efficiency environment friendly refrigerating medium and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859820A (en) * 1972-07-17 1975-01-14 Applied Air Cond Equip Compressor, condenser, evaporator structure
US4201065A (en) * 1978-12-18 1980-05-06 Carrier Corporation Variable capacity vapor compression refrigeration system
EP0179225A1 (en) * 1984-09-19 1986-04-30 Kabushiki Kaisha Toshiba Heat pump system
CN1265188A (en) * 1997-07-25 2000-08-30 约克国际有限公司 Method and appts. for applying dual centrifugal ompressors to refrigeration chiller unit
CN201688619U (en) * 2010-04-20 2010-12-29 深圳市兴日生实业有限公司 Water temperature regulating equipment provided with two sets of independent temperature regulating components
CN102269494A (en) * 2010-06-04 2011-12-07 中国海洋石油总公司 High-efficiency refrigerating system for maritime platform cold store and control method thereof
CN204693898U (en) * 2015-04-28 2015-10-07 华北电力大学（保定） A kind of waste heat recovery high temperature heat pump unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859820A (en) * 1972-07-17 1975-01-14 Applied Air Cond Equip Compressor, condenser, evaporator structure
US4201065A (en) * 1978-12-18 1980-05-06 Carrier Corporation Variable capacity vapor compression refrigeration system
EP0179225A1 (en) * 1984-09-19 1986-04-30 Kabushiki Kaisha Toshiba Heat pump system
CN1265188A (en) * 1997-07-25 2000-08-30 约克国际有限公司 Method and appts. for applying dual centrifugal ompressors to refrigeration chiller unit
CN201688619U (en) * 2010-04-20 2010-12-29 深圳市兴日生实业有限公司 Water temperature regulating equipment provided with two sets of independent temperature regulating components
CN102269494A (en) * 2010-06-04 2011-12-07 中国海洋石油总公司 High-efficiency refrigerating system for maritime platform cold store and control method thereof
CN204693898U (en) * 2015-04-28 2015-10-07 华北电力大学（保定） A kind of waste heat recovery high temperature heat pump unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286246A (en) * 2016-09-12 2017-01-04 珠海格力电器股份有限公司 A kind of control method of compressor assembly
CN106286246B (en) * 2016-09-12 2018-11-13 珠海格力电器股份有限公司 A kind of control method of compressor assembly
CN108332380A (en) * 2018-01-29 2018-07-27 青岛海尔空调电子有限公司 Air-cooled magnetic suspension air-conditioner set and its control method
CN108332380B (en) * 2018-01-29 2020-11-27 青岛海尔空调电子有限公司 Air-cooled magnetic suspension air conditioning unit and control method thereof
CN109337655A (en) * 2018-10-08 2019-02-15 成都毅诚机电工程有限公司 High-efficiency environment friendly refrigerating medium and preparation method thereof

Similar Documents

Publication Publication Date Title
CN204301358U (en) Phase change cold-storage formula LNG cold energy utilization device
CN105758032A (en) Ethylene glycol refrigerating unit energy conservation method
CN102408910B (en) Method and device for recovering light hydrocarbon through refrigeration using compound refrigerant and secondary dealkylation
CN103302191B (en) A kind of diel cooling water recirculation system
CN202192104U (en) Electronic control system for water supply of hot rolling mill
CN103589840A (en) High-efficiency energy-saving apparatus used for cryogenic treatment
CN205641626U (en) Ethylene glycol refrigerating units economizer
CN110864416A (en) Start-stop optimization control method for central air-conditioning system
CN207031299U (en) Isooctane device recycle isobutane optimizes system
CN203837327U (en) Wind-water double-source heat pump cold/hot water unit
CN203487118U (en) Device for recovering tail gas to prepare liquefied natural gas
CN102706098A (en) Hot start method for boost expander
CN201715644U (en) Energy-saving device for water circulation machine room air conditioner
CN207500217U (en) A kind of dry ice sump heat sink
CN202485280U (en) Environment induction type frequency conversion, compression refrigeration and electricity-saving system
CN202709784U (en) Large air pre-cooling system device
CN202485297U (en) Internal pressure monitoring type variable frequency compression refrigeration power saving system
CN206771849U (en) A kind of efficient, accumulation of energy refrigeration station
CN202654742U (en) Energy-saving heat pump solvent rectifying system
CN107816819B (en) Energy tower system with antifreeze concentration regeneration function
CN204056283U (en) A kind of frequency conversion cryogenic storage system peculiar to vessel
CN205398565U (en) Natural gas takes off hydrocarbon device
CN104792092A (en) Energy-saving supply device for technological chilled water
CN204237746U (en) A kind of Sweet natural gas well head takes off hydrocarbon device
CN105823300B (en) A kind of low energy consumption natural gas liquefaction

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160713

RJ01 Rejection of invention patent application after publication