CN203550271U - Device for preparing chilled water by using low-grade energy - Google Patents
Device for preparing chilled water by using low-grade energy Download PDFInfo
- Publication number
- CN203550271U CN203550271U CN201320633801.2U CN201320633801U CN203550271U CN 203550271 U CN203550271 U CN 203550271U CN 201320633801 U CN201320633801 U CN 201320633801U CN 203550271 U CN203550271 U CN 203550271U
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- Prior art keywords
- pipe
- water
- absorber
- generator
- low
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- 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 - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000006096 absorbing agent Substances 0.000 claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 20
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 229940059936 lithium bromide Drugs 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 6
- 239000003643 water by type Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- IPLONMMJNGTUAI-UHFFFAOYSA-M lithium;bromide;hydrate Chemical compound [Li+].O.[Br-] IPLONMMJNGTUAI-UHFFFAOYSA-M 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Images
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
Abstract
The utility model relates to a device for preparing chilled water by using low-grade energy. The device comprises a condenser, a generator, an absorber, an evaporator, a heat exchanger, a hot water pipe, a cold water pipe, a cooling water pipe, a solution pump and a refrigerant pump. The lower part of the absorber is connected to the generator through the solution pump, the heat exchanger and a dilute solution pipe, the generator is connected to the upper part of the absorber through a concentrated solution pipe and the heat exchanger. A refrigerant overflow pipe is arranged between the condenser and the evaporator. The lower part of the evaporator is connected to the upper part of the evaporator through the refrigerant pump and a refrigerant pipe. A generator outlet of the dilute solution pipe is provided with an ultra-low-pressure spray nozzle. A melted crystal pipe is arranged between the generator and the absorber. An outlet of the refrigerant pump is connected with an inlet of the solution pump. A connecting pipeline is provided with a circulating protection valve. The device for preparing chilled water by using low-grade energy has the advantages that since the principle of lithium bromide adsorption-type refrigeration is utilized, hot water with temperature of 78-80DEG C is used as a heat source for preparing the chilled water with temperature of 10DEG C and circulating water with temperature of 68-70DEG C is simultaneously obtained, the cooling process of an air cooler is omitted, the low-grade heat source is effectively utilized, the energy is saved and the production cost is reduced.
Description
Technical field
The utility model belongs to heat energy utilization equipment technical field, relates to the device that a kind of low-grade energy is prepared chilled water.
Background technology
Caprolactam production apparatus refined unit needs 10 ℃ of chilled waters, other 78 ℃ of hot water are cooled to 68 ℃ of return devices by air cooling and recycle, the steam type lithium bromide unit of continuing to use according to traditional handicraft, also needs to use in addition steam type refrigeration plant when a large amount of low-temperature heat sources are wasted in device.
The low temperature exhaust heat that recycle device produces, the chilled water that preparation needs in producing, be that chilled water is prepared in the heat release of use device heat of cooling water circulation, realize effective utilization of low taste thermal source, can reduce caprolactam production cost, improve Business Economic Benefit, there is good social benefit simultaneously.Along with the development of Refrigeration Technique, it is ripe that hot water lithium bromide absorbing refrigeration machine technology has been tending towards, wherein 110 ℃ of high-temperature-hot-water type refrigeration unit extensive use, and 100 ℃ of low-temperature water heating type units also have successfully precedent.But, not yet find that 80 ℃ of following low-temperature heat sources carry out patent and the non-patent literature report of lithium bromide refrigerating.
Publication number be the Chinese invention patent of CN 102235767 A open " a kind of method of utilizing low grade heat energy refrigeration; be utilize containing ammonia Diversity solution be subject to thermal evaporation, the characteristic of meeting condensation knot provides power, by steam compressed the low pressure refrigeration working medium evaporating under cryogenic temperature be condensable HCS under room temperature.The device of realizing said method, it consists of: a thermocompressor, its inside is divided into power cavity and compression chamber by piston or elastic diaphragm; Power cavity connects respectively power sender property outlet and the import of power working medium of heat exchanger; Bottom in power cavity is provided with agitator; Bottom outside power cavity is provided with fin and fan; Compression chamber connects respectively the refrigeration working medium outlet of evaporimeter and the refrigeration working medium import of heat exchanger; The refrigeration working medium outlet of heat exchanger connects the refrigeration working medium import of evaporimeter by condenser.”。This patent application can not utilize 80 ℃ of following low-temperature heat sources to prepare chilled water.
Utility model content
For overcoming the deficiencies in the prior art, the utility model provides a kind of low-grade energy to prepare the device of chilled water, the chilled water of preparing need of production to make full use of 80 ℃ of following low-grade energies, to reduce caprolactam production cost, improves Business Economic Benefit and social benefit.
The utility model low-grade energy is prepared the device of chilled water, comprises condenser, generator, absorber, evaporimeter, heat exchanger, hot-water line, cold water pipe, cooling water pipe solution pump and refrigerated medium pump.Condenser and generator are in a container, and absorber and evaporimeter are in a container, and the bottom of absorber is connected to generator by solution pump, heat exchanger, weak solution pipe, and generator is connected to the top of absorber by concentrated solution pipe, heat exchanger.Between condenser and evaporimeter, be provided with cold-producing medium overflow pipe, evaporimeter bottom is connected to the top of evaporimeter by refrigerated medium pump and refrigerant pipe.The generator exports of weak solution pipe is provided with ultralow pressure nozzle, is provided with and melts brilliant pipe between generator and absorber, and cold-producing medium delivery side of pump is connected with the entrance of solution pump, and connecting line is provided with recycling-guard valve.
Preparing the solution that chilled water device uses is lithium-bromide solution, and cold-producing medium is water.Hot water inlet's temperature of hot-water line is 78～80 ℃, and outlet hot water temperature is 68～70 ℃.The cold water inlet temperature of cold water pipe is 18～22 ℃, and cold water outlet temperature is 9～11 ℃.Cooling water pipe turns back to cooling tower by cooling tower through absorber and condenser, and absorber and generator are provided with coil pipe.The absorber entrance cooling water temperature of cooling water pipe is 31～33 ℃, and condensator outlet cooling water temperature is 37～39 ℃.
The device that the utility model low-grade energy is prepared chilled water utilizes the principle of lithium bromide absorbing type refrigeration, take 78-80 ℃ of hot water as thermal source, prepare 10 ℃ of chilled waters, obtain 68-70 ℃ of recirculated water simultaneously, save the operation of air cooler cooling, make low-grade heat source obtain effective utilization, save the energy, reduce production costs.The generator exports of weak solution pipe adopts ultralow pressure nozzle to drench, and atomizing effect is good, wetted area is large, can strengthen heat exchange and assimilation effect.Between generator and absorber, install and melt brilliant pipe, in the situation that unit crystallization occurs, utilize the heat of concentrated solution to melt crystalline substance to crystal, be conducive to the quiet run of device.Between the entrance of cold-producing medium delivery side of pump and solution pump, connecting line is established recycling-guard valve, when lithium-bromide solution side concentration is higher, by opening recycling-guard valve, solution is diluted, and avoids the generation of crystallization, improves processing safety and flexibility.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model low-grade energy is prepared chilled water device;
Fig. 2 the utility model low-grade energy is prepared the refrigeration system schematic flow sheet of chilled water device;
Wherein:
1-condenser, 2-generator, 3-cooling water pipe, 4-concentrated solution pipe, 5-melt brilliant pipe, 6-absorber, 7-weak solution pipe, 8-heat exchanger, 9-solution pump, 10-evaporimeter, 11-hot-water line, 12-cold-producing medium overflow pipe, 13-cold water pipe, 14-refrigerant pipe, 15-refrigerated medium pump, 16-ultralow pressure nozzle, 17-recycling-guard valve, 18-cooling tower, 19-lithium bromide refrigerator, 20-coil pipe.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
The utility model low-grade energy is prepared shown in the installation drawing 1 of chilled water, comprises condenser 1, generator 2, absorber 6, evaporimeter 10, heat exchanger 8, hot-water line 11, cold water pipe 13, but water tower 18, cooling water pipe 13, solution pump 9 and refrigerated medium pump 15.Condenser and generator are in a container, and absorber and evaporimeter are in a container.The bottom of absorber is connected to generator by solution pump, heat exchanger, weak solution pipe 7, and generator is connected to the top of absorber by concentrated solution pipe 4, heat exchanger.Between condenser and evaporimeter, be provided with cold-producing medium overflow pipe 12, evaporimeter bottom is connected to the top of evaporimeter by refrigerated medium pump 15 and refrigerant pipe 14.The generator exports of weak solution pipe is provided with ultralow pressure nozzle 16, is provided with and melts brilliant pipe 5 between generator and absorber.Cold-producing medium delivery side of pump is connected with the entrance of solution pump, and connecting line is provided with recycling-guard valve 17.Cooling water pipe is got back to cooling tower by cooling tower 18 through absorber 6 and condenser 1, and absorber and condenser are provided with coil pipe 20.The absorber entrance cooling water temperature of cooling water pipe is 31～33 ℃, and condensator outlet cooling water temperature is 37～39 ℃.Preparing the solution that chilled water device uses is lithium-bromide solution, and cold-producing medium is water.
The device that the utility model low-grade energy is prepared chilled water utilizes process that 78 ℃ of low-quality energy prepare 10 ℃ of chilled waters as shown in Figure 2, the hot water of 78 ℃ enters generator 2, heating lithium-bromide solution, the moisture evaporation in solution, exothermic 68 ℃ of hot water are used to circulation.20 ℃ of water enter evaporimeter 10, and in evaporimeter, cold-producing medium vacuum evaporation absorbs heat, and exothermic 10 ℃ of chilled waters leave evaporimeter to the operation of using chilled water.32 ℃ of cooling waters of cooling tower 18 enter absorber 6 by cooling water pipe 3, and through the coil pipe cooling of absorber and condenser 1, the rear 38 ℃ of water that heat up turn back to cooling tower.
Claims (6)
1. a low-grade energy is prepared the device of chilled water, comprise condenser (1), generator (2), absorber (6), evaporimeter (10), heat exchanger (8), hot-water line (11), cold water pipe (13), cooling water pipe (3), solution pump (9) and refrigerated medium pump (15), described condenser and generator are in a container, and described absorber and evaporimeter are in a container; The bottom of described absorber is connected to generator by solution pump, heat exchanger, weak solution pipe (7), and generator is connected to the top of absorber by concentrated solution pipe (4), heat exchanger; Between described condenser and evaporimeter, be provided with cold-producing medium overflow pipe (12), described evaporimeter bottom is connected to the top of evaporimeter by refrigerated medium pump (15) and refrigerant pipe (14); It is characterized in that: the generator exports of described weak solution pipe is provided with ultralow pressure nozzle (16); between described generator and absorber, be provided with and melt brilliant pipe (5); described cold-producing medium delivery side of pump is connected with the entrance of solution pump, and connecting line is provided with recycling-guard valve (17).
2. low-grade energy according to claim 1 is prepared the device of chilled water, it is characterized in that: described to prepare the solution that chilled water device uses be lithium-bromide solution, and described cold-producing medium is water.
3. low-grade energy according to claim 1 is prepared the device of chilled water, it is characterized in that: hot water inlet's temperature of described hot-water line (11) is 78～80 ℃, and outlet hot water temperature is 68～70 ℃.
4. low-grade energy according to claim 1 is prepared the device of chilled water, it is characterized in that: the cold water inlet temperature of described cold water pipe (13) is 18～22 ℃, and cold water outlet temperature is 9～11 ℃.
5. low-grade energy according to claim 1 is prepared the device of chilled water, it is characterized in that: described cooling water pipe (3) turns back to cooling tower by cooling tower (18) through absorber (6) and condenser (1), and absorber and generator are provided with coil pipe (20).
6. low-grade energy according to claim 5 is prepared the device of chilled water, it is characterized in that: the absorber entrance cooling water temperature of described cooling water pipe (3) is 31～33 ℃, and condensator outlet cooling water temperature is 37～39 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633801.2U CN203550271U (en) | 2013-10-15 | 2013-10-15 | Device for preparing chilled water by using low-grade energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633801.2U CN203550271U (en) | 2013-10-15 | 2013-10-15 | Device for preparing chilled water by using low-grade energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550271U true CN203550271U (en) | 2014-04-16 |
Family
ID=50468380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633801.2U Expired - Lifetime CN203550271U (en) | 2013-10-15 | 2013-10-15 | Device for preparing chilled water by using low-grade energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006568A (en) * | 2014-05-06 | 2014-08-27 | 江苏华昌化工股份有限公司 | New method for applying lithium bromide refrigerating device in nitrogenous fertilizer production |
| CN114251864A (en) * | 2021-12-28 | 2022-03-29 | 北京华源泰盟节能设备有限公司 | Absorption refrigerator |
-
2013
- 2013-10-15 CN CN201320633801.2U patent/CN203550271U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006568A (en) * | 2014-05-06 | 2014-08-27 | 江苏华昌化工股份有限公司 | New method for applying lithium bromide refrigerating device in nitrogenous fertilizer production |
| CN114251864A (en) * | 2021-12-28 | 2022-03-29 | 北京华源泰盟节能设备有限公司 | Absorption refrigerator |
| CN114251864B (en) * | 2021-12-28 | 2023-09-29 | 北京华源泰盟节能设备有限公司 | Absorption refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |