CN204665734U - The cooling-water machine of different leaving water temperature is provided simultaneously - Google Patents

The cooling-water machine of different leaving water temperature is provided simultaneously Download PDF

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Publication number
CN204665734U
CN204665734U CN201520385353.8U CN201520385353U CN204665734U CN 204665734 U CN204665734 U CN 204665734U CN 201520385353 U CN201520385353 U CN 201520385353U CN 204665734 U CN204665734 U CN 204665734U
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China
Prior art keywords
water
cooling
load device
economizer
system load
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CN201520385353.8U
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Chinese (zh)
Inventor
要丽娟
刘卫东
李丽芬
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Trane Air Conditioning Systems China Co Ltd
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Trane Air Conditioning Systems China Co Ltd
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Priority to CN201520385353.8U priority Critical patent/CN204665734U/en
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Priority to PCT/CN2015/093337 priority patent/WO2016192293A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00Compression machines, plants or systems, with several condenser circuits
    • F25B6/04Compression machines, plants or systems, with several condenser circuits arranged in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The purpose of this utility model is to provide a kind of cooling-water machine simultaneously providing different leaving water temperature.This cooling-water machine comprises by the compressor of cold-producing medium successively process, First Heat Exchanger, first throttle device, economizer, the second throttling arrangement and the second heat exchanger, the first system load device is connected with at the second heat exchanger or First Heat Exchanger place, wherein, heat exchange water pipe has been imbedded at the liquid position of described economizer, described heat exchange water pipe is connected with second system load device, so that carry out heat exchange by the cold-producing medium at the liquid position of the water in described heat exchange water pipe and described economizer, be different from warm water in the first system load device water temperature to obtain temperature.

Description

The cooling-water machine of different leaving water temperature is provided simultaneously
Technical field
The utility model relates to cooling-water machine, particularly relates to the cooling-water machine simultaneously providing different leaving water temperature.
Background technology
Along with the economic development in the whole world, same client, to the requirement diversification of load, may need the multiple load devices simultaneously providing different water temperature, so just requires that cooling-water machine can a tractor serves several purposes, better meets the demand of client.
Utility model content
The purpose of this utility model is to provide a kind of cooling-water machine simultaneously providing different leaving water temperature.
A kind of cooling-water machine that different leaving water temperature is provided simultaneously is provided according to embodiment of the present utility model, comprise by the compressor of cold-producing medium successively process, First Heat Exchanger, first throttle device, economizer, second throttling arrangement and the second heat exchanger, the first system load device is connected with at the second heat exchanger or First Heat Exchanger place, wherein, heat exchange water pipe has been imbedded at the liquid position of described economizer, described heat exchange water pipe is connected with second system load device, so that carry out heat exchange by the cold-producing medium at the liquid position of the water in described heat exchange water pipe and described economizer, to obtain the water that temperature is different from the first system load device water temperature.
In a preferred embodiment, the liquid outlet of described economizer is configured with liquid storage container, and described liquid storage container is configured to its internal liquid cold-producing medium and is convenient to be sent to described second throttling arrangement.
In a preferred embodiment, described compressor is compound compressor or multiple compressors in series.
In a preferred embodiment, throttling arrangement can be heating power expansion valve, electric expansion valve, restricting orifice or ball-cock assembly.
In a preferred embodiment, described liquid storage container is configured by fluid-tight mode and makes the cold-producing medium entering the second throttling arrangement be liquid phase.
In a preferred embodiment, this liquid storage container is the container be welded on bottom economizer.
In a preferred embodiment, described heat exchange water pipe is embedded in the liquid level bottom of described economizer, is beneficial to heat exchange.
In a preferred embodiment, described the first system load device is building air-conditioner load device, and described second system load device is small communication station or other small-sized load devices.
Embodiment of the present utility model can adapt to the application scenario to having air conditioner load (as office or commercial buildings) and middle temperature load (as small communication station) simultaneously, the leaving water temperature of applicable different load demand can be provided simultaneously, make unit day-to-day operation efficiency higher.
Accompanying drawing explanation
The above and other feature of the present utility model, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the system principle schematic diagram of the cooling-water machine according to the utility model one embodiment;
Fig. 2 adopts compressor series system to produce the schematic diagram of cold water according to the utility model;
Fig. 3 adopts multi-stage compression or second vapor injection mode to produce the schematic diagram of cold water according to the utility model;
Fig. 4 adopts compressor series system to produce the schematic diagram of hot water according to the utility model;
Fig. 5 adopts multi-stage compression or second vapor injection mode to produce the schematic diagram of hot water according to the utility model.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth more details in the following description so that fully understand the utility model; but the utility model obviously can be implemented with multiple this alternate manner described that is different from; those skilled in the art when doing similar popularization, deduction without prejudice to when the utility model intension according to practical situations, therefore can should not limit protection domain of the present utility model with the content of this specific embodiment.
The system producing cold water as shown in Figure 1, there is provided the cooling-water machine of different leaving water temperature to comprise by the compressor 1 of cold-producing medium successively process simultaneously, First Heat Exchanger 2, first throttle device 3, economizer 4, second throttling arrangement 6 and the second heat exchanger 7, connected the first system load device 8 of needs first temperature cold water by heat exchanging water pipe at the second heat exchanger 7 place, heat exchange water pipe 51 has been imbedded at the liquid position of economizer 4, heat exchange water pipe 51 connects the second system load device 5 of needs second temperature cold water, so that carry out heat exchange by the cold-producing medium at the liquid position of the water in heat exchange water pipe 51 and economizer, (or middle warm water is referred to as to obtain the second temperature cold water, middle temperature is the relative concept of relative first temperature).First, second stream device can be heating power expansion valve, electric expansion valve, restricting orifice or ball-cock assembly.
Refrigeration working medium (i.e. cold-producing medium) absorbs the heat of cooled water and is vaporized into steam in the second heat exchanger 7, the steam produced constantly is extracted out by compressor 1 from the second heat exchanger 7, and compress, high temperature after compression, high steam to be sent to after First Heat Exchanger 2 to cooling medium (as water, air etc.) exothermic condensation becomes highly pressurised liquid, economizer 4 is entered into after become gas-liquid two-phase after first throttle device 3 step-down, wherein part of refrigerant cools the cold-producing medium of another part by shwoot, the cold-producing medium of this part shwoot becomes gaseous refrigerant G1A, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, enter circulation, the cold-producing medium that another road is cooled becomes liquid, accumulate in the bottom of economizer 4, heat exchange is carried out with the heat exchanging water pipe 51 imbedded bottom economizer 4, economizer 4 and second system load device 5 are carried out the heat being connected the water absorbing second system load device 5 Inner eycle by heat exchanging water pipe 51.Second system load device 5 can comprise tank and water pump, and the water of tank constantly circulates between tank and economizer 5 through heat exchanging water pipe 51 by water pump, thus obtains the cooling water of the second temperature.The water of second system load device 5 can be sent into by water pump in warm load equipment, such as small communication station, the scale of small communication station or small-sized load device is limited with the operating power of not influential system load one device 8.
Under the effect of heat exchanging water pipe 51, in economizer 4, the further shwoot of some refrigerant liquid becomes gaseous refrigerant G1B, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, all the other liquid refrigerants enter the second heat exchanger 7 by the second throttling arrangement 6 bottom economizer, enter the cold-producing medium of the second heat exchanger 7, absorb the heat of the water of the first system load device 8 Inner eycle, again vaporize, gaseous refrigerant gets back to compressor 1, circulates so again and again.The first system load device 8 also can comprise water tank and water pump, water is injected with in it, water pump reaches the second heat exchanger 7 by mobile water, second heat exchanger 7 plays the effect of evaporimeter, therefore cooled dose of the water of water tank cooling, the water of water tank can send into by water pump the equipment needing cooling again, such as office or commercial use air conditioner.
As shown in Figure 2, compressor 1 is the two-stage compressor adopting compressor series system, cooling-water machine provides the mode of operation of different temperatures cold water, wherein, namely cold-producing medium absorbs the heat of the cooled water that the first system load device 8 provides and is vaporized into steam in the second heat exchanger (being now evaporimeter) 7, and the water in the first system load device 8 is cooled to the cooling water of the first temperature that it needs.The steam produced constantly is extracted out by compressor 1 from the second heat exchanger 7, and compress, high temperature after compression, high steam to be sent to after First Heat Exchanger (now for condenser) 2 to cooling medium (as water, air etc.) exothermic condensation becomes highly pressurised liquid, economizer 4 is entered into after become gas-liquid two-phase after first throttle device 3 step-down, according to the principle shown in Fig. 1, heat exchanging water pipe 51 is imbedded bottom economizer 4, economizer 4 and second system load device 5 are carried out the heat being connected the water absorbing second system load device 5 Inner eycle by heat exchanging water pipe 51, the cold water of the second temperature or middle warm water can be provided to make second system load device 5, the while of also making in economizer 4, the further shwoot of some refrigerant liquid becomes gaseous refrigerant G1B, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, all the other liquid refrigerants enter the second heat exchanger 7 by the second throttling arrangement 6 bottom economizer, enter the cold-producing medium of the second heat exchanger 7, absorb the heat of the water of the first system load device 8 Inner eycle, again vaporize, gaseous refrigerant gets back to compressor 1, so circulate again and again.
In fig. 2, compressor 1 can be three or more level compressor.
As shown in Figure 3, compressor 1 is the compressor adopting multi-stage compression or second vapor injection mode, cooling-water machine also provides the mode of operation of different temperatures cold water, wherein, namely cold-producing medium absorbs the heat of the cooled water that the first system load device 8 provides and is vaporized into steam in the second heat exchanger (for evaporimeter) 7, and the water in the first system load device 8 is cooled to the cooling water of the first temperature that it needs.The steam produced constantly is extracted out by compressor 1 from the second heat exchanger 7, and compress, high temperature after compression, high steam to be sent to after First Heat Exchanger (for condenser) 2 to cooling medium (as water, air etc.) exothermic condensation becomes highly pressurised liquid, economizer 4 is entered into after become gas-liquid two-phase after first throttle device 3 step-down, according to aforementioned principles, heat exchanging water pipe is imbedded bottom economizer 4, economizer 4 and second system load device 5 are carried out the heat being connected the water absorbing second system load device 5 Inner eycle by heat exchanging water pipe, such second system load device 5 can provide the cold water of the second temperature or middle warm water, the while of also making in economizer 4, the further shwoot of some refrigerant liquid becomes gaseous refrigerant G1B, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, all the other liquid refrigerants enter the second heat exchanger 7 by the second throttling arrangement 6 bottom economizer, enter the cold-producing medium of the second heat exchanger 7, absorb the heat of the water of the first system load device 8 Inner eycle, again vaporize, gaseous refrigerant gets back to compressor 1, so circulate again and again.
Embodiment as shown in Figure 4 can be used to provide hot water and middle warm water.In embodiment shown in Fig. 4 cold-producing medium absorbing environmental air or other working medium in the second heat exchanger (now for evaporimeter) 7 heat and be vaporized into steam.The steam produced constantly is extracted out by compressor 1 from the second heat exchanger 7, and compress, become the gas liquid mixture of high pressure after high temperature after compression, high steam are sent to First Heat Exchanger (being now condenser) 2 to the water exothermic condensation in the first system load device 8, the water in the first system load device 8 is heated to be the hot water of the 3rd temperature.High pressure refrigerant liquid enters into economizer 4 after become gas-liquid two-phase after first throttle device 3 step-down, with reference to the principle shown in Fig. 1, bottom economizer 4, namely heat exchanging water pipe 51 is imbedded in hydraulic fluid side, economizer 4 and second system load device 5 carry out being connected the water draw heat with to second system load device 5 Inner eycle by heat exchanging water pipe 51, second system load device 5 can provide the cold water of the second temperature or middle warm water (cold or middle temperature herein is still the concept of relative 3rd temperature), the while of to make in economizer 4, the further shwoot of some refrigerant liquid becomes gaseous refrigerant G1B, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, the side of giving vent to anger of the first order compressor of multi-stage compression can be entered into, all the other liquid refrigerants enter the second heat exchanger 7 by the second throttling arrangement 6 bottom economizer, enter the cold-producing medium of the second heat exchanger 7, absorb the heat of the water of the first system load device 8 Inner eycle, again vaporize, gaseous refrigerant gets back to compressor 1, so circulate again and again.
Embodiment as shown in Figure 5 also can provide the water of different temperatures, and the first system load device 8 provides hot water, and second system load device 5 provides middle warm water.In embodiment shown in Fig. 5 cold-producing medium absorbing environmental air or other working medium in the second heat exchanger (now for evaporimeter) 7 heat and be vaporized into steam.The steam produced constantly is extracted out by compressor 1 from the second heat exchanger 7, and compress, become the gas liquid mixture of high pressure after high temperature after compression, high steam are sent to First Heat Exchanger (being now condenser) 2 to the water exothermic condensation in the first system load device 8, the water in the first system load device 8 is heated to be the hot water of the 3rd temperature.High pressure refrigerant liquid enters into economizer 4 after become gas-liquid two-phase after first throttle device 3 step-down, with reference to the principle shown in Fig. 1, bottom economizer 4, namely heat exchanging water pipe 51 is imbedded in hydraulic fluid side, economizer 4 and second system load device 5 carry out being connected the water draw heat with to second system load device 5 Inner eycle by heat exchanging water pipe 51, second system load device 5 can provide the cold water of the second temperature or middle warm water, the while of also making in economizer 4, the further shwoot of some refrigerant liquid becomes gaseous refrigerant G1B, by the connecting pipe (not shown) with compressor 1, reenter compressor 1 and continue compression, all the other liquid refrigerants enter the second heat exchanger 7 by the second throttling arrangement 6 bottom economizer, enter the cold-producing medium of the second heat exchanger 7, absorb the heat of the water of the first system load device 8 Inner eycle, again vaporize, gaseous refrigerant gets back to compressor 1, so circulate again and again.
In a preferred embodiment, liquid storage container can be configured, to guarantee to enter the refrigerant of evaporimeter throttling arrangement for liquid state at the liquid outlet of economizer 4.Described liquid storage container is configured by fluid-tight mode makes the cold-producing medium entering the second throttling arrangement be liquid phase.
Aforementioned compressor can be, but not limited to be centrifugal compressor or screw compressor.
It should be noted that unless otherwise defined, otherwise all technical terms used in aforementioned description have understood identical implication usual with those of ordinary skill in the art.Describe ad hoc approach, device in subject application, but any method similar or of equal value with the method and apparatus described in foregoing teachings and material can use in the practice of this technology.Although quite in detail and by illustrating the embodiment of description technique, described explanation only for being expressly understood, and is not intended to limit.Use various term in the de-scription to pass on the understanding to this technology, should be understood that the implication of described various term extends to the common languages of various term or grammatical variants or form.Also should be understood that when term be finger device or equipment time, described term or name are referred to as the example in the present age and provide, and this technical step is by the restriction of described literal scope.Aforesaid term will be understood to by contemporary term description now, and described aforesaid term reasonably can be interpreted as the derivative of the system subset name that contemporary term or contemporary term comprise.In addition, when not departing from the scope of disclosed technology, any one or more features of any embodiment of technology can with any one or more other Feature Combinations of arbitrary embodiment of technology.Further, should understand, this technology is not limited to the embodiment of having set forth in order to illustration, but this technology only defines by the fair deciphering of present application for patent appended claims, comprises the equal authenticity of the gamut enjoyed of being had the right by each element of this technology.Therefore, although the present invention with preferred embodiment openly as above, it is not that any those skilled in the art without departing from the spirit and scope of the present invention, can make possible variation and amendment for limiting the present invention.Therefore, every content not departing from technical solution of the present invention, any amendment done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all fall within protection domain that the claims in the present invention define.

Claims (8)

1. one kind provides the cooling-water machine of different leaving water temperature simultaneously, comprise by the compressor of cold-producing medium successively process, First Heat Exchanger, first throttle device, economizer, second throttling arrangement and the second heat exchanger, the first system load device is connected with at the second heat exchanger or First Heat Exchanger place, it is characterized in that, heat exchange water pipe has been imbedded at the liquid position of described economizer, described heat exchange water pipe is connected with second system load device, this second system load device carries out heat exchange by the cold-producing medium at the liquid position of the water in described heat exchange water pipe and described economizer, to obtain the water that temperature is different from the first system load device water temperature.
2. cooling-water machine as claimed in claim 1, it is characterized in that, the liquid outlet of described economizer is configured with liquid storage container, and described liquid storage container is configured to its internal liquid cold-producing medium and is convenient to be sent to described second throttling arrangement.
3. cooling-water machine as claimed in claim 1, it is characterized in that, described compressor is compound compressor or multiple compressors in series.
4. cooling-water machine as claimed in claim 1, it is characterized in that, throttling arrangement can be heating power expansion valve, electric expansion valve, restricting orifice or ball-cock assembly.
5. cooling-water machine as claimed in claim 2, it is characterized in that, described liquid storage container is configured by fluid-tight mode makes the cold-producing medium entering the second throttling arrangement be liquid phase.
6. cooling-water machine as claimed in claim 5, it is characterized in that, this liquid storage container is the container be welded on bottom economizer.
7. cooling-water machine as claimed in claim 1, it is characterized in that, described heat exchange water pipe is embedded in the liquid level bottom of described economizer, is beneficial to heat exchange.
8. cooling-water machine as claimed in claim 1, it is characterized in that, described the first system load device is building air-conditioner load device, and described second system load device is small communication station or other small-sized load devices.
CN201520385353.8U 2015-06-04 2015-06-04 The cooling-water machine of different leaving water temperature is provided simultaneously Active CN204665734U (en)

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CN201520385353.8U CN204665734U (en) 2015-06-04 2015-06-04 The cooling-water machine of different leaving water temperature is provided simultaneously
PCT/CN2015/093337 WO2016192293A1 (en) 2015-06-04 2015-10-30 Water cooling machine capable of simultaneously outputting water at different temperatures

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016192293A1 (en) * 2015-06-04 2016-12-08 特灵空调***(中国)有限公司 Water cooling machine capable of simultaneously outputting water at different temperatures
CN110494701A (en) * 2017-04-18 2019-11-22 三菱电机株式会社 Air conditioner
CN111811157A (en) * 2020-06-01 2020-10-23 青岛经济技术开发区海尔热水器有限公司 Heat exchange equipment, water heater and air conditioner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218769A (en) * 1986-03-19 1987-09-26 シャープ株式会社 Heat pump air-conditioning hot-water supply device
DE3609313A1 (en) * 1986-03-20 1987-09-24 Bbc York Kaelte Klima METHOD FOR RECOVERY CONDENSING HEAT OF A REFRIGERATION PLANT AND REFRIGERATION PLANT FOR IMPLEMENTING THE PROCEDURE
JPH01134168A (en) * 1987-11-18 1989-05-26 Sanyo Electric Co Ltd Refrigerator
JPH1151503A (en) * 1997-08-01 1999-02-26 Sanyo Electric Co Ltd Cooling apparatus
JP4827191B2 (en) * 2004-11-12 2011-11-30 株式会社前川製作所 Operation method of heat pump using CO2 as refrigerant
CN101089517A (en) * 2006-06-12 2007-12-19 扬州辛普森中央空调制造有限公司 Air-cooled water-cooled double-evaporator hot water unit
CN201096429Y (en) * 2007-07-26 2008-08-06 张宪金 Compact highly effective dual-operation cooling tower heat reclamation energy-saving device
JP5327308B2 (en) * 2011-09-30 2013-10-30 ダイキン工業株式会社 Hot water supply air conditioning system
CN204665734U (en) * 2015-06-04 2015-09-23 特灵空调***(中国)有限公司 The cooling-water machine of different leaving water temperature is provided simultaneously

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016192293A1 (en) * 2015-06-04 2016-12-08 特灵空调***(中国)有限公司 Water cooling machine capable of simultaneously outputting water at different temperatures
CN110494701A (en) * 2017-04-18 2019-11-22 三菱电机株式会社 Air conditioner
CN111811157A (en) * 2020-06-01 2020-10-23 青岛经济技术开发区海尔热水器有限公司 Heat exchange equipment, water heater and air conditioner

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