CN109186125A - A kind of power plant's central refrigerating system cold source configuration structure and operating method - Google Patents
A kind of power plant's central refrigerating system cold source configuration structure and operating method Download PDFInfo
- Publication number
- CN109186125A CN109186125A CN201811060255.1A CN201811060255A CN109186125A CN 109186125 A CN109186125 A CN 109186125A CN 201811060255 A CN201811060255 A CN 201811060255A CN 109186125 A CN109186125 A CN 109186125A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- lithium bromide
- power plant
- cold
- 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
Links
- 238000011017 operating method Methods 0.000 title claims description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 148
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 239000000498 cooling water Substances 0.000 claims abstract description 71
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012141 concentrate Substances 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses power plant's central refrigerating system cold source configuration structures, and two lithium bromide cooling-water machine groups are arranged, and every lithium bromide cooling-water machine pool-size is 60% of refrigeration duty needed for power plant concentrates chilled water system；One water cooled chiller is set, and water cooler capacity is refrigeration duty of the power plant in the important area of starting period and turn(a)round, is 50% of refrigeration duty needed for power plant's concentration chilled water system；Corresponding two lithium bromide cooling-water machine group selections, 4 cooling towers, 3 lithium bromide cooling water pumps, 3 cold water circulation pumps；Corresponding water cooled chiller selects 2 cooling by water water pumps；Wherein, 1 conduct is spare in 3 lithium bromide cooling water pumps, and 1 conduct is spare in 3 cold water circulation pumps, and 1 conduct is spare in 2 cooling by water water pumps.Power plant of the present invention the starting period, turn(a)round, the runtime life cycle management in have reliable and stable cold source under four kinds of operating conditions；Using residual heat of electric power plant as driving thermal energy, power consumption is few, and energy utilization rate is high, achievees the purpose that electricity saving and energy saving lowers consumption.
Description
Technical field
The present invention relates to a kind of power plant's central refrigerating system cold source configuration structure and operating methods.
Background technique
The common power plant's central refrigerating system cold source configuration structure of domestic contrast mainly has following 4 kinds at present: water cooling cold water
Unit+cooling tower, water resource heat pump water cooler+cooling tower, cooling by wind, lithium bromide adsorption water chilling unit+cooling tower.
Wherein, water cooled chiller+cooling tower water cooled chiller power consumption is high, not energy-efficient；Water resource heat pump water cooler+cooling tower
Device systems are huge, and process is complicated, and overall cost is higher, and is limited greatly by local water condition, have certain influence to water body,
Want to violate with the water-saving policy of country；Wind water chilling unit system is simple, and arrangement is convenient, but unit volume is larger, arranges place
More demanding, consumption rate is quite high, and is influenced by local air velocity, temperature, and system is unstable；Lithium bromide adsorption water chilling machine
Group+cooling tower can utilize residual heat of electric power plant, waste heat and other low grade heat energies, and operating cost is few, and safety is good, is with thermal energy
Power, power consumption is few, but when providing without thermal energy power plant's starting period and turn(a)round, lithium bromide adsorption water chilling unit cannot be transported
Row, can not provide cold source for plant area.Therefore, it is necessary to which reliable and stable cold source and economize on electricity can be provided by designing one kind, reduce
Power plant's refrigeration system of operating cost.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of power plant's refrigeration system cold source configuration structure,
Reliable and stable cold source and economize on electricity can be provided, power plant's refrigeration system of operating cost is reduced.
The purpose of the present invention is achieved through the following technical solutions: a kind of power plant's central refrigerating system cold source configuration knot
Structure:
Two lithium bromide cooling-water machine groups are set, and every lithium bromide cooling-water machine pool-size is cold needed for power plant's concentration chilled water system
The 60% of load；Corresponding two lithium bromide cooling-water machine group selections, 4 cooling towers, 3 lithium bromide cooling water pumps, 3 circulating chilled waters
Pump；
Wherein, 1 conduct is spare in 3 lithium bromide cooling water pumps, and 1 conduct is spare in 3 cold water circulation pumps；
One water cooled chiller is set, and water cooled chiller capacity is important area of the power plant in starting period and turn(a)round
Refrigeration duty, for power plant concentrate chilled water system needed for refrigeration duty 50%；Corresponding water cooled chiller selects 2 cooling by water water
It pumps, 1 conduct is spare in 2 cooling by water water pumps；
Lithium bromide cooling-water machine group and water cooled chiller sharing cooling tower, lithium bromide cooling-water machine group and water cooled chiller are total
Use cold water circulation pump.
It is preferred that lithium bromide cooling-water machine group is steam double-effect type lithium bromide adsorption water chilling unit.
It is preferred that cooling tower uses closed cooling tower.
It is preferred that cooling tower is arranged in the preferable place of outdoor air flow, lithium bromide cooling-water machine group, water cooling are cold
Water dispenser group, cooling by water water pump, lithium bromide cooling water pump and cold water circulation pump arrangement are indoors.
Power plant's central refrigerating system cold source configuration structure operating method:
Refrigeration system has following 4 kinds of operating conditions:
Operating condition 1: power plant's usual runtime provides 7 DEG C of cold water using lithium bromide cooling-water machine group；
Operating condition 2: power plant's starting period and turn(a)round, provide 7 DEG C of cold water using water cooled chiller；
When operating condition 3:1 platform lithium bromide cooling-water machine group failure, water cooled chiller automatically engages operation, with another lithium bromide
Water cooler air conditioning；
When operating condition 4:1 platform cooling tower failure, 1 lithium bromide cooling-water machine group operation, water cooled chiller automatically engages operation；
Under each operating condition, water cooler, cooling tower, the operating condition of water pump are as follows:
It is preferred that the open/close state one of the open/close state of each unit interface electrically operated valve and corresponding equipment
It causes.
The beneficial effects of the present invention are:
1, power plant the starting period, turn(a)round, the runtime life cycle management in four kinds of operating conditions under have it is reliable and stable
Cold source.
2, using residual heat of electric power plant as driving thermal energy, power consumption is few, and primary energy utilization ratio is high, reaches electricity saving and energy saving drop
The purpose of consumption.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the portion A enlarged diagram in Fig. 1；
Fig. 3 is the portion B enlarged diagram in Fig. 1；
Fig. 4 is the portion C enlarged diagram in Fig. 1；
Fig. 5 is the portion D enlarged diagram in Fig. 1；
Fig. 6 is the portion E enlarged diagram in Fig. 1.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in figs 1 to 6, a kind of power plant's central refrigerating system cold source configuration structure:
Two lithium bromide cooling-water machine groups are set, and every lithium bromide cooling-water machine pool-size is cold needed for power plant's concentration chilled water system
The 60% of load；Corresponding two lithium bromide cooling-water machine group selections, 4 cooling towers, 3 lithium bromide cooling water pumps, 3 circulating chilled waters
Pump；
Wherein, 1 conduct is spare in 3 lithium bromide cooling water pumps, and 1 conduct is spare in 3 cold water circulation pumps；
One water cooled chiller is set, and water cooled chiller capacity is important area of the power plant in starting period and turn(a)round
Refrigeration duty, for power plant concentrate chilled water system needed for refrigeration duty 50%；Corresponding water cooled chiller selects 2 cooling by water water
It pumps, 1 conduct is spare in 2 cooling by water water pumps；
Lithium bromide cooling-water machine group and water cooled chiller sharing cooling tower, lithium bromide cooling-water machine group and water cooled chiller are total
Use cold water circulation pump.
As shown in figs 1 to 6, cooling tower is separately connected lithium bromide cooling-water machine group to the connection relationship of each equipment and water cooling is cold
Water dispenser group；Lithium bromide cooling-water machine group and water cooled chiller are connect with cold water circulation pump, and lithium bromide cooling-water machine group and water cooling are cold
Water dispenser group sharing cooling tower, lithium bromide cooling-water machine group and water cooled chiller share cold water circulation pump；Lithium bromide cooling-water machine group and
Water cooled chiller is connected with respectively corresponding cooling water pump respectively；Cooling tower moisturizing connects industry water；Lithium bromide cooling-water machine group is solidifying
Bear water connection condensed-water recovering device；Lithium bromide cooling-water machine group heat source connects steam.
In a preferred embodiment, lithium bromide cooling-water machine group is steam double-effect type lithium bromide adsorption water chilling unit.
In a preferred embodiment, cooling tower uses closed cooling tower.
In a preferred embodiment, cooling tower is arranged in the preferable place of outdoor air flow, lithium bromide cooling-water machine group,
Water cooled chiller, cooling by water water pump, lithium bromide cooling water pump and cold water circulation pump arrangement are indoors.
Power plant's central refrigerating system cold source configuration structure operating method:
Refrigeration system has following 4 kinds of operating conditions:
Operating condition 1: power plant's usual runtime provides 7 DEG C of cold water using lithium bromide cooling-water machine group；
Operating condition 2: power plant's starting period and turn(a)round, provide 7 DEG C of cold water using water cooled chiller；
When operating condition 3:1 platform lithium bromide cooling-water machine group failure, water cooled chiller automatically engages operation, with another lithium bromide
Water cooler air conditioning；
When operating condition 4:1 platform cooling tower failure, 1 lithium bromide cooling-water machine group operation, water cooled chiller automatically engages operation；
Under each operating condition, water cooler, cooling tower, the operating condition of water pump are as follows:
" fortune " in table indicates operation, and " stopping " indicates to stop, " standby " to indicate spare, such as lithium bromide cooling-water machine group " 2 fortune "
It indicates to put into two lithium bromide cooling-water machine group operations, lithium bromide cooling water pump " 2 fortune 1 are standby " indicates that two lithium bromide cooling water pumps are thrown
Enter operation, have 1 it is spare.
In a preferred embodiment, each unit (including lithium bromide cooling-water machine group, water cooled chiller, cooling by water water
Pump and lithium bromide cooling water pump) interface electrically operated valve open/close state it is consistent with the open/close state of corresponding equipment.
In a preferred embodiment, water cooler, water pump and corresponding electrically operated valve power on/off sequence are as follows:
Water cooled chiller power-up sequence: cooling tower side valve door -> water cooled chiller cooling water side valve -> cooling by water
Water pump -> cooling tower -> water cooled chiller cold water side valve -> cold water circulation pump -> water cooled chiller；
Water cooled chiller shutdown sequence: 3 minutes pass cold water circulation pump -> water cooling cooling-water machines of water cooled chiller -> delay
Group cold water side valve -> cooling tower -> cooling by water water pump -> water cooled chiller cooling water side valve -> cooling tower side valve door；
Lithium bromide cooling-water machine group power-up sequence: lithium bromide cooling-water machine group -> lithium bromide cooling-water machine group cold water side valve -> cold water
Circulating pump -> cooling tower side valve door -> lithium bromide cooling-water machine group cooling water side valve -> lithium bromide cooling water pump -> cooling tower -> bromine
Change lithium water cooler steam side valve door；
Lithium bromide cooling-water machine group shutdown sequence: lithium bromide cooling-water machine group -> lithium bromide cooling-water machine group steam side valve door -> cooling
Tower -> lithium bromide cooling water pump -> lithium bromide cooling-water machine group cooling water side valve -> cooling tower side valve door -> cold water circulation pump -> bromine
Change lithium water cooler cold water side valve；
The ability lower equipment of ON/OFF after the ON/OFF need of relevant device are confirmed, in case of failure then suspends movement in next step simultaneously
Alarm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention
Within the scope of shield.
Claims (6)
1. a kind of power plant's central refrigerating system cold source configuration structure, it is characterised in that:
Two lithium bromide cooling-water machine groups are set, and every lithium bromide cooling-water machine pool-size is refrigeration duty needed for power plant concentrates chilled water system
60%；Corresponding two lithium bromide cooling-water machine group selections, 4 cooling towers, 3 lithium bromide cooling water pumps, 3 cold water circulation pumps；
Wherein, 1 conduct is spare in 3 lithium bromide cooling water pumps, and 1 conduct is spare in 3 cold water circulation pumps；
One water cooled chiller is set, and water cooled chiller capacity is power plant in the cold of the important area of starting period and turn(a)round
Load, 50% of refrigeration duty needed for concentrating chilled water system for power plant；2 cooling by water water pumps of corresponding water cooled chiller selection, 2
1 conduct is spare in platform cooling by water water pump；
Lithium bromide cooling-water machine group and water cooled chiller sharing cooling tower, lithium bromide cooling-water machine group shares cold with water cooled chiller
Water-circulating pump.
2. a kind of power plant's central refrigerating system cold source configuration structure according to claim 1, it is characterised in that: lithium cold
Water dispenser group is steam double-effect type lithium bromide adsorption water chilling unit.
3. a kind of power plant's central refrigerating system cold source configuration structure according to claim 1, it is characterised in that: cooling tower is adopted
Use closed cooling tower.
4. a kind of power plant's central refrigerating system cold source configuration structure according to claim 1, it is characterised in that: cooling tower cloth
It sets in the preferable place of outdoor air flow, lithium bromide cooling-water machine group, water cooled chiller, cooling by water water pump, lithium cold
But water pump and cold water circulation pump are arranged indoors.
5. power plant's central refrigerating system cold source configuration structure operating method, it is characterised in that:
Refrigeration system has following 4 kinds of operating conditions:
Operating condition 1: power plant's usual runtime provides 7 DEG C of cold water using lithium bromide cooling-water machine group；
Operating condition 2: power plant's starting period and turn(a)round, provide 7 DEG C of cold water using water cooled chiller；
When operating condition 3:1 platform lithium bromide cooling-water machine group failure, water cooled chiller automatically engages operation, with another lithium bromide cold water
Unit air conditioning；
When operating condition 4:1 platform cooling tower failure, 1 lithium bromide cooling-water machine group operation, water cooled chiller automatically engages operation；
Under each operating condition, water cooler, cooling tower, the operating condition of water pump are as follows:
6. a kind of power plant's central refrigerating system cold source configuration structure operating method according to claim 5, it is characterised in that:
The open/close state of each unit interface electrically operated valve is consistent with the open/close state of corresponding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060255.1A CN109186125A (en) | 2018-09-12 | 2018-09-12 | A kind of power plant's central refrigerating system cold source configuration structure and operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060255.1A CN109186125A (en) | 2018-09-12 | 2018-09-12 | A kind of power plant's central refrigerating system cold source configuration structure and operating method |
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| Publication Number | Publication Date |
|---|---|
| CN109186125A true CN109186125A (en) | 2019-01-11 |
Family
ID=64910197
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060255.1A Pending CN109186125A (en) | 2018-09-12 | 2018-09-12 | A kind of power plant's central refrigerating system cold source configuration structure and operating method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000205692A (en) * | 1999-01-11 | 2000-07-28 | Hitachi Building Equipment Engineering Co Ltd | Method and apparatus for controlling operation of lithium bromide absorption refrigerating machine |
| JP2004190885A (en) * | 2002-12-09 | 2004-07-08 | Ebara Corp | Absorption compression refrigerating machine and refrigerating system |
| CN204705071U (en) * | 2015-05-20 | 2015-10-14 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of power plant central refrigerating system cold source equipment structure |
| CN108180690A (en) * | 2017-12-27 | 2018-06-19 | 中国电力工程顾问集团西南电力设计院有限公司 | The combination configuration structure and operating method of district cooling station cold source equipment |
| CN208983659U (en) * | 2018-09-12 | 2019-06-14 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of power plant's central refrigerating system cold source configuration structure |
-
2018
- 2018-09-12 CN CN201811060255.1A patent/CN109186125A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000205692A (en) * | 1999-01-11 | 2000-07-28 | Hitachi Building Equipment Engineering Co Ltd | Method and apparatus for controlling operation of lithium bromide absorption refrigerating machine |
| JP2004190885A (en) * | 2002-12-09 | 2004-07-08 | Ebara Corp | Absorption compression refrigerating machine and refrigerating system |
| CN204705071U (en) * | 2015-05-20 | 2015-10-14 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of power plant central refrigerating system cold source equipment structure |
| CN108180690A (en) * | 2017-12-27 | 2018-06-19 | 中国电力工程顾问集团西南电力设计院有限公司 | The combination configuration structure and operating method of district cooling station cold source equipment |
| CN208983659U (en) * | 2018-09-12 | 2019-06-14 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of power plant's central refrigerating system cold source configuration structure |
Non-Patent Citations (2)
| Title |
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| 冯震;: "分布式能源站内集中冷热源方案优化", 建材与装饰, no. 52 * |
| 黄卡, 杨昌智: "溴化锂吸收式冷水机组的节能运行分析", 烟草科技, no. 06 * |
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