CN115143656A - Closed circulating water system with high-temperature season cold compensation - Google Patents
Closed circulating water system with high-temperature season cold compensation Download PDFInfo
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- CN115143656A CN115143656A CN202210587617.2A CN202210587617A CN115143656A CN 115143656 A CN115143656 A CN 115143656A CN 202210587617 A CN202210587617 A CN 202210587617A CN 115143656 A CN115143656 A CN 115143656A
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
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- 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
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- 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
- F25B41/00—Fluid-circulation arrangements
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04775—Air purification and pre-cooling
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/04—Compressor cooling arrangement, e.g. inter- or after-stage cooling or condensate removal
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/12—External refrigeration with liquid vaporising loop
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- 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
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
Abstract
A closed circulating water system with high-temperature season cold compensation comprises a dry-wet mixed surface evaporation heat exchanger and a cold water compensation unit, wherein the dry-wet mixed surface evaporation heat exchanger comprises a pre-cooling tube bundle, an evaporation tube bundle, a cooling water pump, a spraying device and a demisting device; the cold-supplementing water cooling machine set comprises a circulating medium compressor, a throttle valve, a refrigerant evaporator and a refrigerant cooler. When the dry-wet mixed surface evaporation heat exchanger is used independently and is not wet, the dry-wet mixed surface evaporation heat exchanger can adapt to cooling regeneration of circulating water in cold seasons, can adapt to cooling regeneration of circulating water in normal temperature seasons when dry-wet is combined, and can adapt to cooling regeneration of circulating water in high temperature seasons when the dry-wet mixed surface evaporation heat exchanger is connected with a cold-supplementing water cooling unit in series, so that the temperature of the circulating water in each season is relatively stable. Because the surface evaporation water is only opened when the temperature is higher, the annual evaporation water consumption is very low, and the closed circulating water is not evaporated and concentrated, the method is very suitable for cold water-deficient areas, and the circulating water can be changed into refrigerating fluid in alpine regions.
Description
Technical Field
The invention relates to a closed circulating water system with high-temperature season cold compensation, which is mainly applied to the cooling process of a compressor in the industries of air separation and the like.
Background
In the air separation industry and other industries, isothermal compression is generally achieved by multi-stage compression and interstage cooling in order to save power consumption of the compressor. The current compressor interstage cooling scheme is: taking circulating water as a heat-carrying medium, cooling high-temperature air by an interstage cooler, and allowing the cooled air to enter a next-stage compressor for continuous pressurization; circulating water absorbing heat of the high-temperature gas is cooled by a water cooling tower, and heat and mass exchange is carried out between the circulating water and air in the water cooling tower to achieve the purpose of cooling; and the cooled circulating water enters the interstage cooler to absorb the heat of the high-temperature air, so that the circulation is completed.
Because the cooling circulating water of the water cooling tower is in open circulation, the heat of high-temperature air is taken away by latent heat of vaporization of a large amount of water, the circulating water is rapidly concentrated and degraded, the water supplement amount is large, and the cooling scheme has no possibility of implementation in certain areas lacking water resources; and the surface evaporation air cooler adopts closed circulation, has avoided the direct contact of circulating water with the environment, when reducing the pump lift, the moisturizing volume of the device that can significantly reduce.
According to the invention, the circulating water absorbing the heat of the high-temperature gas is secondarily cooled in a mode of connecting the dry-wet mixed surface evaporation heat exchanger and the cold-supplementing water chilling unit in series, the primary cooling of the circulating water is carried out by the dry-wet mixed surface evaporation heat exchanger, the secondary cooling is carried out by the cold-supplementing water chilling unit in a high-temperature season, and the dry-wet mixed surface evaporation heat exchanger is subjected to dry cooling with air in a high-temperature section, so that the evaporation water consumption is greatly reduced, the circulating water is not subjected to evaporation concentration, and the cooling requirements of the circulating water at different air temperatures can be met, thereby achieving the purposes of saving energy and reducing consumption.
Disclosure of Invention
The invention aims to provide a closed circulating water system with high-temperature season cold compensation, which can prevent impurities in air from entering the circulating water system to pollute the circulating water system and prevent a heat exchanger from being damaged due to scaling.
In order to solve the problems, the invention provides a closed circulating water system with high-temperature season cold compensation, which comprises a dry-wet mixed surface evaporation heat exchanger and a cold water compensation unit, wherein the dry-wet mixed surface evaporation heat exchanger comprises a pre-cooling pipe bundle, an evaporation pipe bundle, a cooling water pump, a spraying device and a demisting device; the cold-supplementing water cooling machine set comprises a circulating medium compressor, a throttle valve, a refrigerant evaporator and a refrigerant cooler; the cooled unit consists of a plurality of groups of compressor front stages, interstage coolers and compressor rear stages; the other auxiliary devices are composed of a booster water pump, an expansion water tank and a control valve.
Preferably, the method comprises the following steps: the pre-cooling tube bundle is positioned above the evaporation tube bundle, the input end of the pre-cooling tube bundle is connected with the output end of the expansion water tank, the air entering from two sides is used for cooling, and the output end of the pre-cooling tube bundle is connected with the input end of the evaporation tube bundle; the evaporation tube bundle exchanges heat with low-temperature air after exchanging heat with cooling water and is connected with the refrigerant evaporator; the cooling water pump is connected with the spraying device and arranged below the pre-cooling pipe bundle, and provides pressure for overcoming pipeline resistance loss for circulating water; the demisting device is positioned above the precooling tube bundle and used for removing water drops carried in the air.
Preferably, the method comprises the following steps: the cold supplementing and water cooling unit utilizes the expansion refrigeration of a refrigerant to cool circulating water in a refrigerant evaporator, and the output end of high-temperature gas pressurized by the refrigerant compressor is connected with the input end of a refrigerant cooler to realize the condensation of the refrigerant; the input ends of the throttle valve and the throttle valve are connected to the output end of the refrigerant cooler, and the output ends of the throttle valve and the throttle valve are connected to the input end of the refrigerant evaporator; the output end of the refrigerant evaporator is connected to the output end of the refrigerant compressor, and the refrigerant in the refrigerant evaporator is an environment-friendly refrigerant of R410a, R123 and R134A.
Preferably, the method comprises the following steps: the input end of the pre-cooling tube bundle is connected with the output end of the expansion water tank, and the evaporation tube bundle is connected with the refrigerant evaporator; the output end of the refrigerant evaporator is connected with the input end of the booster water pump, the output end of the booster water pump is connected with the input end of the inter-compressor cooler, the output end of the inter-compressor cooler is connected with the input end of the expansion water tank, and the pre-cooling tube bundle, the expansion water tank, the evaporation tube bundle and the refrigerant evaporator are connected with each other, so that a complete circulating water cooling system is formed between the booster water pump and the inter-compressor cooler.
The invention has the following characteristics:
1) The invention adopts a closed circulating water system, greatly reduces water consumption, can adopt desalted water (refrigerating fluid can be adopted under special conditions) as circulating water, has the dirt coefficient of less than 0.000172 and the chloride ion concentration of less than 50ppm, can adopt full aluminum tubes as a heat exchanger, and reduces cost.
2) The evaporation water volume of the circulating water system is zero, no concentration factor exists, and the consumption of the circulating water is only about half of that of the conventional water volume.
3) The lift of the circulating water pump is 25m enough, so that the power consumption of the water pump is greatly reduced.
4) The invention can meet the cooling requirement of the circulating water at different air temperatures, and when the air temperature is lower, the cooling capacity of the circulating water is provided by the dry-wet mixed surface evaporation heat exchanger, a water chilling unit is not required to be started, and the operation energy consumption of the system is reduced.
5) The temperature of the circulating water in the invention is reduced to 16-20 ℃, so that the heat exchange area of the interstage cooler can be further reduced, and the equipment investment cost is reduced.
Drawings
FIG. 1 is a schematic flow diagram of a water-saving compressor interstage cooling system employing a dry-wet mixed surface evaporative heat exchanger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further explained below with reference to the accompanying drawings and examples.
As shown in fig. 1, the closed circulating water system with high-temperature season cold compensation of the invention comprises a dry-wet mixed surface evaporation heat exchanger and a cold water compensation unit, wherein the dry-wet mixed surface evaporation heat exchanger comprises a pre-cooling tube bundle 1, an evaporation tube bundle 2, a cooling water pump 3, a spray device 4 and a demisting device 5; the cold-supplementing water cooling machine set comprises a circulating medium compressor 6, a throttle valve V1, a throttle valve V2, a refrigerant evaporator 7 and a refrigerant cooler 8; the cooled unit consists of a plurality of groups of compressor front stages 9, interstage coolers 10 and compressor rear stages 11; the other auxiliary devices consist of a booster water pump 12, an expansion water tank 13 and a control valve V3.
The precooling tube bundle 1 is positioned above the evaporation tube bundle 2, the input end of the precooling tube bundle 1 is connected with the output end of the expansion water tank 13, the air entering from two sides is used for cooling, and the output end of the precooling tube bundle is connected with the input end of the evaporation tube bundle 2; the evaporation tube bundle 2 exchanges heat with low-temperature air after exchanging heat with cooling water and is connected with a refrigerant evaporator 7; the cooling water pump 3 is connected with the spraying device 4 and arranged below the pre-cooling tube bundle 1, and provides pressure for overcoming pipeline resistance loss for circulating water; the defogging device 5 is positioned above the precooling tube bundle 1 and used for removing water drops entrained in the air.
The cold supplementing and water cooling unit utilizes the expansion refrigeration of a refrigerant to cool circulating water in a refrigerant evaporator 7, and the output end of high-temperature gas pressurized by a refrigerant compressor 6 is connected with the input end of a refrigerant cooler 8 to realize the condensation of the refrigerant; the input ends of the throttle valve V1 and the throttle valve V2 are connected to the output end of the refrigerant cooler 8, and the output ends of the throttle valve V1 and the throttle valve V2 are connected to the input end of the refrigerant evaporator 7; the output end of the refrigerant evaporator 7 is connected to the output end of the refrigerant compressor 6, and the refrigerant in the refrigerant evaporator 7 is an environment-friendly refrigerant of R410a, R123, and R134A.
The input end of the pre-cooling tube bundle 1 is connected with the output end of the expansion water tank 13, and the evaporation tube bundle 2 is connected with the refrigerant evaporator 7; the output end of the refrigerant evaporator 7 is connected to the input end of the booster water pump 12, the output end of the booster water pump 12 is connected to the input end of the inter-compressor cooler 10, the output end of the inter-compressor cooler 10 is connected to the input end of the expansion water tank 13, and a complete circulating water cooling system is formed among the pre-cooling tube bundle 1, the expansion water tank 13, the evaporation tube bundle 2, the refrigerant evaporator 7, the booster water pump 12 and the inter-compressor cooler 10.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention relates to a closed circulating water system with high-temperature season cold compensation, circulating water from an expansion water tank 13 sequentially passes through a precooling tube bundle 1 and an evaporating tube bundle 2 in a circulating water precooling device: circulating water is initially cooled by normal-temperature air in the pre-cooling pipe bundle 1 and then enters the evaporation pipe bundle 2 to absorb cold energy released by air and a spray water heat and mass exchange station, and the temperature is further reduced; if the temperature of the circulating water out of the dry-wet mixed surface evaporation heat exchanger is higher than a set value, the circulating water enters a water chilling unit for further cooling and absorbs the cold energy in a refrigerant evaporator 7; when the temperature of the circulating water is lower than a set value, the circulating water enters the booster water pump 12 through the bypass pipeline, the heat of the high-temperature gas is absorbed in the interstage cooler 10 after the circulating water is pressurized, and the heated circulating water enters the expansion water tank 13 to complete circulation.
The structure and the using steps of the invention are as follows:
the input end of the dry-wet mixed surface evaporation heat exchanger is connected with the output end of the expansion water tank, and the output end of the dry-wet mixed surface evaporation heat exchanger is connected with the input end of the refrigerant evaporator; the output end of the refrigerant evaporator is connected to the input end of a booster water pump, the output end of the booster water pump is divided into a plurality of paths, the paths are respectively connected to the input end of the compressor interstage cooler, and the output end of the compressor interstage cooler is connected to the input end of the water expansion tank, so that a circulating water cooling system is formed.
The invention can reasonably select the organization form of the cooling circulating water according to different air temperatures: when the air temperature is higher than a set value, the control valve V3 is closed, the cold-supplementing water chilling unit is opened, the circulating water cooled by the dry-wet mixed surface evaporation heat exchanger enters the water chilling unit for further cooling, the circulating water meeting the temperature requirement enters the booster water pump, and the circulating water enters the interstage cooler after being pressurized to absorb the heat of the high-temperature gas; when the air temperature is lower than a set value, the control valve V3 is opened, the cold-supplementing water cooling unit is closed, the circulating water cooled by the dry-wet mixed surface evaporation heat exchanger directly enters the booster water pump through the bypass pipeline, and the circulating water is pressurized and then enters the interstage cooler to absorb the heat of the high-temperature gas; when the air temperature is lower than a set low value (in cold seasons), the control valve V3 is opened, the cold-supplementing water cooling unit is closed, the surface spray water of the dry-wet mixed surface evaporation heat exchanger is closed, the cooled circulating water directly enters the booster water pump through the bypass pipeline, and is pressurized and then enters the interstage cooler to absorb the heat of the high-temperature gas.
Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (4)
1. The utility model provides a take high temperature season cold-supplement's closed circulating water system, it includes dry wet mixed surface evaporation heat exchanger and cold water machine group of benefit cold which characterized in that: the dry-wet mixed surface evaporation heat exchanger comprises a pre-cooling tube bundle (1), an evaporation tube bundle (2), a cooling water pump (3), a spraying device (4) and a demisting device (5); the cold-supplementing water cooling machine set comprises a circulating medium compressor (6), a throttle valve (V1), a throttle valve (V2), a refrigerant evaporator (7) and a refrigerant cooler (8); the cooled unit consists of a plurality of groups of compressor front stages (9), interstage coolers (10) and compressor rear stages (11); the other auxiliary devices consist of a booster water pump (12), an expansion water tank (13) and a control valve (V3).
2. The closed circulation water system with high-temperature season cooling, according to claim 1, wherein: the precooling tube bundle (1) is positioned above the evaporating tube bundle (2), the input end of the precooling tube bundle (1) is connected with the output end of the expansion water tank (13), the air entering from two sides is used for cooling, and the output end of the precooling tube bundle is connected with the input end of the evaporating tube bundle (2); the evaporation tube bundle (2) exchanges heat with low-temperature air after exchanging heat with cooling water and is connected with a refrigerant evaporator (7); the cooling water pump (3) is connected with the spraying device (4) and arranged below the precooling pipe bundle (1) to provide pressure for overcoming the resistance loss of the pipeline for circulating water; the demisting device (5) is positioned above the pre-cooling tube bundle (1) and used for removing water drops entrained in the air.
3. The closed circulation water system with high-temperature season cooling, according to claim 1, wherein: the cold-supplementing water cooling unit utilizes refrigerant expansion refrigeration to cool circulating water in a refrigerant evaporator (7), and a high-temperature gas output end pressurized by a refrigerant compressor (6) is connected with an input end of a refrigerant cooler (8) to realize condensation of the refrigerant; the input ends of the throttle valve (V1) and the throttle valve (V2) are connected to the output end of the refrigerant cooler (8), and the output ends of the throttle valve (V1) and the throttle valve (V2) are connected to the input end of the refrigerant evaporator (7); the output end of the refrigerant evaporator (7) is connected with the output end of the refrigerant compressor (6), and the refrigerant in the refrigerant evaporator (7) is an environment-friendly refrigerant of R410a, R123 and R134A.
4. The closed circulation water system with high-temperature season cooling, according to claim 1, wherein: the input end of the pre-cooling tube bundle (1) is connected with the output end of the expansion water tank (13), and the evaporation tube bundle (2) is connected with the refrigerant evaporator (7); the output end of the refrigerant evaporator (7) is connected to the input end of the booster water pump (12), the output end of the booster water pump (12) is connected with the input end of the cooler (10) between the compressors, the output end of the cooler (10) between the compressors is connected to the input end of the expansion water tank (13), and a complete circulating water cooling system is formed among the pre-cooling tube bundle (1), the expansion water tank (13), the evaporation tube bundle (2), the refrigerant evaporator (7) which are connected, the booster water pump (12) and the cooler (10) between the compressors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210587617.2A CN115143656A (en) | 2022-05-27 | 2022-05-27 | Closed circulating water system with high-temperature season cold compensation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210587617.2A CN115143656A (en) | 2022-05-27 | 2022-05-27 | Closed circulating water system with high-temperature season cold compensation |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192088A (en) * | 2008-02-12 | 2009-08-27 | Hitachi Metals Ltd | Cooling system |
| CN102692057A (en) * | 2012-06-01 | 2012-09-26 | 罗积源 | Energy-saving air conditioner water chilling unit and energy-saving air conditioning system |
| CN103032980A (en) * | 2011-09-29 | 2013-04-10 | 艾默生网络能源有限公司 | Water chilling unit |
| CN106247509A (en) * | 2016-09-23 | 2016-12-21 | 昆山台佳机电有限公司 | Integral type handpiece Water Chilling Units |
| CN206572676U (en) * | 2017-03-08 | 2017-10-20 | 大连国霖技术有限公司 | Double cold source refrigerating systems that natural cooling unit is combined with centrifugal water chillers |
| CN206755926U (en) * | 2017-04-26 | 2017-12-15 | 山东富凯隆节能科技有限公司 | A kind of efficient air cooling apparatus |
| CN107575971A (en) * | 2017-09-06 | 2018-01-12 | 珠海格力电器股份有限公司 | A kind of vaporation-type handpiece Water Chilling Units and control method |
| CN109990619A (en) * | 2019-01-28 | 2019-07-09 | 北京朗博科科技发展有限公司 | Heat exchanger external dry and wet joint closed cooling system and cooling means |
| CN209371557U (en) * | 2019-01-07 | 2019-09-10 | 爱能森（深圳）高端智能装备有限公司 | A kind of vaporation-type multiple source changes in temperature unit |
| CN110594898A (en) * | 2019-03-21 | 2019-12-20 | 新疆绿色使者空气环境技术有限公司 | Machine room water-saving air conditioning system with closed cooling water and chilled water capable of running in series |
-
2022
- 2022-05-27 CN CN202210587617.2A patent/CN115143656A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192088A (en) * | 2008-02-12 | 2009-08-27 | Hitachi Metals Ltd | Cooling system |
| CN103032980A (en) * | 2011-09-29 | 2013-04-10 | 艾默生网络能源有限公司 | Water chilling unit |
| CN102692057A (en) * | 2012-06-01 | 2012-09-26 | 罗积源 | Energy-saving air conditioner water chilling unit and energy-saving air conditioning system |
| CN106247509A (en) * | 2016-09-23 | 2016-12-21 | 昆山台佳机电有限公司 | Integral type handpiece Water Chilling Units |
| CN206572676U (en) * | 2017-03-08 | 2017-10-20 | 大连国霖技术有限公司 | Double cold source refrigerating systems that natural cooling unit is combined with centrifugal water chillers |
| CN206755926U (en) * | 2017-04-26 | 2017-12-15 | 山东富凯隆节能科技有限公司 | A kind of efficient air cooling apparatus |
| CN107575971A (en) * | 2017-09-06 | 2018-01-12 | 珠海格力电器股份有限公司 | A kind of vaporation-type handpiece Water Chilling Units and control method |
| CN209371557U (en) * | 2019-01-07 | 2019-09-10 | 爱能森（深圳）高端智能装备有限公司 | A kind of vaporation-type multiple source changes in temperature unit |
| CN109990619A (en) * | 2019-01-28 | 2019-07-09 | 北京朗博科科技发展有限公司 | Heat exchanger external dry and wet joint closed cooling system and cooling means |
| CN110594898A (en) * | 2019-03-21 | 2019-12-20 | 新疆绿色使者空气环境技术有限公司 | Machine room water-saving air conditioning system with closed cooling water and chilled water capable of running in series |
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