CN201028702Y - Low-energy consumption lithium bromide central refrigerating equipment - Google Patents
Low-energy consumption lithium bromide central refrigerating equipment Download PDFInfo
- Publication number
- CN201028702Y CN201028702Y CNU2007200841483U CN200720084148U CN201028702Y CN 201028702 Y CN201028702 Y CN 201028702Y CN U2007200841483 U CNU2007200841483 U CN U2007200841483U CN 200720084148 U CN200720084148 U CN 200720084148U CN 201028702 Y CN201028702 Y CN 201028702Y
- Authority
- CN
- China
- Prior art keywords
- lithium bromide
- tube
- water pump
- chilled
- valve
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an integrated lithium bromide refrigerating equipment with lower energy consumption, comprising a lithium bromide machine set. A chilled medium water outlet valve of the lithium bromide machine set, a fan coil tube, a chilled medium water pump inlet valve, a chilled medium water pump are connected in series with a chilled medium water inlet vale the lithium bromide machine set, so as to form a chilled medium water heat exchange cycling loop. The chilled water outlet valve of the lithium bromide machine set, a cooling tower, a cooling water pump and the chilled water inlet vale the lithium bromide machine set are connected in series to form a cooled water heat exchange cycling loop. An output tube and an output control valve are arranged between the outlet tube of the cooling tower and an inlet tube of the chilled medium water pump. A short connecting tube and a control valve of the short connecting tube are arranged between an outlet tube of the chilled medium water pump and an inlet tube of the fan coil tube. An input tube and an input tube control valve are arranged between an outlet tube of the fan coil tube and an inlet tube of the cooling tower. Having the advantages of simple structure, low investment, convenient operation, stable operation and long energy consumption, the utility model can effectively avoid the accident of crystallization in lower temperature environment and assure normal work of the refrigerating equipments.
Description
Technical field
The utility model relates to lithium bromide refrigerating equipment, refers to a kind of low energy consumption lithium bromide central refrigerating equipment particularly.
Background technology
Lithium bromide refrigerating equipment mainly is to utilize thermal refrigerating, it can make full use of the used heat, waste heat etc. of low gesture heat energy such as factory, there is not the problem of destroying atmospheric ozone layer in the absorption refrigeration mode that it adopted in addition, environment-friendly function is very superior, therefore need the user of central refrigerating to adopt for many, mostly adopt lithium bromide refrigerating equipment in the equipment workshop of a lot of iron and steel enterprises of China, adopt lithium bromide central refrigerating equipment exactly as Wuhan Iron and Steel Plant first steel mill, this equipment is responsible for the temperature control of key equipments such as steelmaking converter, continuous casting zone, requires the year round cooling operation.
Yet under low temperature environment, lithium bromide refrigerating equipment can be crossed the low unit operation load that makes because of water temperature and increase; The lithium bromide unit moves under low temperature environment and can produce faults such as crystallization, chilled water pollution, unit autostop simultaneously; influence the normal operation of steel mill production equipment; press annual average crystallite 2 times; cause the lithium bromide compressor emergency shutdown to calculate in 3～5 days at every turn; its troubleshooting Master Cost needs 0.7 ten thousand yuan; labour cost needs 0.2 ten thousand yuan, and 2 crystallizations cause damage 1.8 ten thousand yuan altogether.Therefore, when low temperature environment moves, the cooling water water temperature need be remained on more than 20 degree, the lithium bromide unit could normal operation.At present, lithium bromide refrigerating equipment generally all adopts steam heating, need open refrigerant pump, coolant pump, cooling tower during its operation, consumes a large amount of steam and electric energy, and its operation control is extremely unstable, operation energy consumption height, weak effect.Energy consumption calculation during with the lithium bromide unit operation of one 1,200,000 kilocalorie, operation is 4 months under low temperature environment, per hour consumes pressure and be 1 ton of the steam of 0.8MPa, needs to consume 2928 tons of steam altogether; Open 2 cooling water pump groups, every pump motor power is 55KW, needs consumed power 160,000 degree altogether.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, and a kind of simple in structure, small investment, easy to operate, stable, the low energy consumption lithium bromide central refrigerating equipment that can effectively avoid the crystallization accident to take place are provided.
For achieving the above object, the low energy consumption lithium bromide central refrigerating equipment that the utility model is designed, comprise the lithium bromide unit, the chilled water inlet valve of the chilled water outlet valve of lithium bromide unit, fan coil, chilled water pump inlet valve, refrigerant water pump and lithium bromide unit is connected successively, constitutes chilled water heat exchange closed circuit.The cooling sea water inlet valve of the cooling sea water outlet valve of lithium bromide unit, cooling tower, cooling water pump and lithium bromide unit is connected successively, constitutes cooling water heat exchange cycles loop.Be provided with an efferent duct between the inlet pipeline of the outlet conduit of above-mentioned cooling tower and refrigerant water pump, this efferent duct is provided with the efferent duct control valve.Be provided with a nipple between the inlet pipeline of above-mentioned chilled water delivery side of pump pipeline and fan coil, this nipple is provided with the nipple control valve.Be provided with an input pipe between the outlet conduit of above-mentioned fan coil and the inlet pipeline of cooling tower, this input pipe is provided with the input pipe control valve.
Advantage of the present utility model is: designed lithium bromide central refrigerating equipment can bromizate lithium refrigeration unit operate as normal or is free on outside the refrigeration plant after newly establishing nipple, input pipe and efferent duct and control valve thereof on the basis of original heat exchange circulation line by the adjusting of control valve.Like this; under low temperature environment; close each terminal valve of lithium bromide refrigerating unit; open the control valve of newly establishing pipeline simultaneously; bromizate the lithium refrigeration unit by short circuit; this moment, equipment directly utilized the refrigeration of the cooling water in the cooling tower under the low temperature environment; avoided steam consumption on the one hand; greatly reduce energy consumption; avoided the lithium bromide refrigerating unit under low temperature environment, to move the crystallization that causes on the other hand; chilled water pollutes; faults such as unit autostop; utilize the cooling tower cooling simultaneously; but the water temperature flexible modulation is not influenced by ambient temperature, makes the whole system operation more stable.In addition, the lithium bromide refrigerating unit is not worked when low temperature environment, has increased the time of unit maintenance maintenance, has also prolonged the service life of unit greatly.Field experiment shows: the utility model is good to the cooling-down effect of steel mill production equipment, and the site environment temperature is remained at below 25 degree, can replace original lithium bromide refrigerating equipment fully.
Description of drawings
Accompanying drawing is a kind of structural representation of low energy consumption lithium bromide central refrigerating equipment.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Low energy consumption lithium bromide central refrigerating equipment shown in the figure, has a lithium bromide unit 1, the chilled water inlet valve 5 of the chilled water outlet valve 6 of lithium bromide unit 1, fan coil 3, chilled water pump inlet valve 4, refrigerant water pump 9 and lithium bromide unit 1 is connected successively, constitutes chilled water heat exchange closed circuit.Fan coil 3 is arranged in the environment that needs central refrigerating, by the chilled water in it constantly with environment in hot-air carry out heat exchange, thereby to environment temperature reduction.The cooling sea water inlet valve 7 of the cooling sea water outlet valve 8 of lithium bromide unit 1, cooling tower 2, cooling water pump 10 and lithium bromide unit 1 is connected successively, constitutes cooling water heat exchange cycles loop.
Be provided with an efferent duct 14 between the inlet pipeline of the outlet conduit of cooling tower 2 and refrigerant water pump 9, efferent duct 14 is provided with efferent duct control valve 16.During concrete the connection, because the outlet conduit of cooling tower 2 communicates with the import of cooling water pump 10, so can directly efferent duct 14 be drawn from the import department of cooling water pump 10, the other end of efferent duct 14 is connected between the rear end of the inlet pipeline of refrigerant water pump 9 and chilled water pump inlet valve 4, and chilled water pump inlet valve 4 can separate the outlet conduit of efferent duct 14 with fan coil 3.
Be provided with a nipple 11 between the inlet pipeline of the outlet conduit of refrigerant water pump 9 and fan coil 3, nipple 11 is provided with nipple control valve 12.During concrete the connection, an end of nipple 11 is connected chilled water inlet valve 5 front ends of lithium bromide unit 1, and the other end of nipple 11 is connected chilled water outlet valve 6 rear ends of lithium bromide unit 1.Open nipple control valve 12, can be outside refrigeration plant with lithium bromide unit 1 short circuit.
Be provided with an input pipe 13 between the inlet pipeline of the outlet conduit of fan coil 3 and cooling tower 2, input pipe 13 is provided with input pipe control valve 15.During concrete the connection, from the front end of chilled water pump inlet valve 4 input pipe 13 is drawn, the other end of input pipe 13 is connected on the inlet pipeline of cooling tower 2 and gets final product.
Also be provided with a bypass pipe 17 between the inlet pipeline of cooling tower 2 and outlet conduit, bypass pipe 17 is provided with bypass pipe control valve 18.
Operation principle of the present utility model is such:
When under the temperature condition with higher, using this lithium bromide central refrigerating equipment, close nipple control valve 12, input pipe control valve 15, efferent duct control valve 16 and bypass pipe control valve 18, chilled water is through 9 pressurizations of refrigerant water pump, enter lithium bromide unit 1 by chilled water inlet valve 5, the cooling back is from 6 outputs of chilled water outlet valve, deliver in the on-the-spot fan coil 3, through heat exchange the heat at scene is taken away, chilled water in the fan coil 3 enters in the refrigerant water pump 9 through chilled water pump inlet valve 4 again, enter in the lithium bromide unit 1 by chilled water inlet valve 5 again after the pressurization, form chilled water heat exchange closed circuit.Meanwhile, after cooling water is lowered the temperature through cooling tower 2, outlet conduit input cooling water pump 10 from cooling tower 2, the pressurization back is delivered in the lithium bromide unit 1 by cooling sea water inlet valve 7, carry out heat exchange with the chilled water of taking back heat from the scene, deliver to cooling tower 2 coolings by cooling sea water outlet valve 8 then, import cooling water pump 10 again, form cooling water heat exchange cycles loop through the cooling water after the cooling.
Reduce to below 15 ℃ when using this lithium bromide central refrigerating equipment to freeze in environment temperature, close chilled water inlet valve 5, chilled water outlet valve 6, cooling sea water inlet valve 7, cooling sea water outlet valve 8 and the chilled water pump inlet valve 4 of lithium bromide unit 1, open nipple control valve 12, input pipe control valve 15, efferent duct control valve 16, open refrigerant water pump 9, close cooling water pump 10.This moment, lithium bromide unit 1 was in stopped status by short circuit; whole refrigeration plant provides power by refrigerant water pump 9; chilled water is delivered in the fan coil 3 by nipple 11 scene is lowered the temperature; the chilled water that flows out from fan coil 3 cools off to cooling tower 2 by input pipe 13; send in the refrigerant water pump 9 by efferent duct 14 again through cooled chilled water; be delivered to fan coil 3 again by refrigerant water pump 9, form the circularly cooling loop.Because the temperature of cooling water equally can be low than usual when temperature was low, so refrigeration can not be affected.
Be low to moderate subzero when using this lithium bromide central refrigerating equipment at outdoor environment temperature, open bypass pipe control valve 18, regulate and control the chilled water water temperature of entire equipment by the aperture of control bypass pipe control valve 18, open the blower fan cooling of cooling tower 2 when water temperature is high, water temperature is crossed the aperture size of then adjusting bypass pipe control valve 18 when hanging down, suitably improves water temperature, prevents that water temperature is low excessively, thereby guarantee that the chilled water in the pipeline can not freeze, and makes refrigeration plant working properly all the time.
Claims (2)
1. low energy consumption lithium bromide central refrigerating equipment, comprise lithium bromide unit (1), the chilled water inlet valve (5) of the chilled water outlet valve (6) of lithium bromide unit (1), fan coil (3), chilled water pump inlet valve (4), refrigerant water pump (9) and lithium bromide unit (1) is connected successively, constitutes chilled water heat exchange closed circuit; The cooling sea water inlet valve (7) of the cooling sea water outlet valve (8) of lithium bromide unit (1), cooling tower (2), cooling water pump (10) and lithium bromide unit (1) is connected successively, constitutes cooling water heat exchange cycles loop; It is characterized in that:
Be provided with an efferent duct (14) between the inlet pipeline of the outlet conduit of described cooling tower (2) and refrigerant water pump (9), this efferent duct (14) is provided with efferent duct control valve (16);
Be provided with a nipple (11) between the inlet pipeline of the outlet conduit of described refrigerant water pump (9) and fan coil (3), this nipple (11) is provided with nipple control valve (12);
Be provided with an input pipe (13) between the inlet pipeline of the outlet conduit of described fan coil (3) and cooling tower (2), this input pipe (13) is provided with input pipe control valve (15).
2. low energy consumption lithium bromide central refrigerating equipment according to claim 1 is characterized in that: also be provided with a bypass pipe (17) between the inlet pipeline of described cooling tower (2) and the outlet conduit, this bypass pipe (17) is provided with bypass pipe control valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200841483U CN201028702Y (en) | 2007-04-12 | 2007-04-12 | Low-energy consumption lithium bromide central refrigerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200841483U CN201028702Y (en) | 2007-04-12 | 2007-04-12 | Low-energy consumption lithium bromide central refrigerating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028702Y true CN201028702Y (en) | 2008-02-27 |
Family
ID=39132915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200841483U Expired - Fee Related CN201028702Y (en) | 2007-04-12 | 2007-04-12 | Low-energy consumption lithium bromide central refrigerating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028702Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674624A (en) * | 2016-03-24 | 2016-06-15 | 东营佰孚新能源开发有限公司 | Solar heating and refrigerating system |
| CN105697137A (en) * | 2016-01-22 | 2016-06-22 | 北京建工建筑设计研究院 | Building complex combined energy system and method thereof |
| CN107289666A (en) * | 2017-07-14 | 2017-10-24 | 江苏联峰能源装备有限公司 | A kind of lithium bromide chiller prevents crystallization apparatus |
| CN113611941A (en) * | 2021-06-17 | 2021-11-05 | 赵文英 | Control method for thermal runaway of lithium battery pack, control panel and temperature control equipment |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
-
2007
- 2007-04-12 CN CNU2007200841483U patent/CN201028702Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697137A (en) * | 2016-01-22 | 2016-06-22 | 北京建工建筑设计研究院 | Building complex combined energy system and method thereof |
| CN105697137B (en) * | 2016-01-22 | 2018-12-04 | 北京建工建筑设计研究院 | Bombyx Botryticatus combines energy resource system and its method |
| CN105674624A (en) * | 2016-03-24 | 2016-06-15 | 东营佰孚新能源开发有限公司 | Solar heating and refrigerating system |
| CN107289666A (en) * | 2017-07-14 | 2017-10-24 | 江苏联峰能源装备有限公司 | A kind of lithium bromide chiller prevents crystallization apparatus |
| CN113611941A (en) * | 2021-06-17 | 2021-11-05 | 赵文英 | Control method for thermal runaway of lithium battery pack, control panel and temperature control equipment |
| CN113611941B (en) * | 2021-06-17 | 2022-12-27 | 赵文英 | Control method and control panel for thermal runaway of lithium battery pack and temperature control equipment |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103016083A (en) | Back pressure and straight condensing switching heat supply system | |
| CN201028702Y (en) | Low-energy consumption lithium bromide central refrigerating equipment | |
| CN204555111U (en) | Energy-saving open cooling tower cold supply system | |
| CN101424472A (en) | Water-cooling system for production facility | |
| CN202126040U (en) | Heat pump air-conditioning system utilizing residual heat of air compressor | |
| CN201779833U (en) | Air-source instantaneous water heater | |
| CN201666196U (en) | Waste heat recovery device of diesel generator set | |
| CN110887270A (en) | Multistage utilization system and method for waste heat of air compressor | |
| CN202403378U (en) | Central air conditioning device for condensate water cooling quantity recycle | |
| CN203464414U (en) | Dynamic ice-storage system in two preheating modes | |
| CN203396028U (en) | Power-saving system of central air conditioner | |
| CN202885131U (en) | Intelligent precise energy-saving equipment of central air conditioner | |
| CN201302325Y (en) | Production equipment water cooling system | |
| CN102072542B (en) | Tandem refrigeration air conditioning and tail end cold water storage system | |
| CN208547106U (en) | A kind of system that plate heat exchanger is used as central air-conditioning refrigeration subsidiary engine | |
| CN203375786U (en) | Recovery system for cold energy of cryogenic liquid | |
| CN201779842U (en) | Energy-saving air source instant water heater | |
| CN202073749U (en) | Heat energy recycling system of air compressor | |
| CN214581900U (en) | Air conditioner cold and heat source system for gas turbine power plant | |
| CN204594028U (en) | The energy-conservation feeding mechanism of technique chilled water | |
| CN203891948U (en) | Adjustable operation device achieving high back pressure by circulating water heat supplying condensers of cogeneration units | |
| CN204806607U (en) | Central air conditioning system of economizing on electricity | |
| CN202719672U (en) | Cold hot water comprehensive energy utilization device | |
| CN202254454U (en) | Cooling-water machine with low temperature heat exchange function | |
| CN202013062U (en) | Secondary heat exchange cool storage system for cooling water for production technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20130412 |