CN105928398A - Multistage parallel displacement module of heat exchange system - Google Patents
Multistage parallel displacement module of heat exchange system Download PDFInfo
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- CN105928398A CN105928398A CN201610381109.3A CN201610381109A CN105928398A CN 105928398 A CN105928398 A CN 105928398A CN 201610381109 A CN201610381109 A CN 201610381109A CN 105928398 A CN105928398 A CN 105928398A
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- heat
- working medium
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- exchange system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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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
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
Abstract
The invention relates to the technical field of heat exchange, in particular to a multistage parallel displacement module of a heat exchange system. The module comprises an insulation component and a parallel heat displacement system composed of at least two heat displacement subsystems arranged in the insulation component. The insulation component comprises an insulation inlet, a low heat insulation outlet and a high heat insulation outlet. The heat displacement system is connected with the insulation inlet, the low heat insulation outlet and the high heat insulation outlet. The multiple heat displacement subsystems in the parallel heat displacement system can conduct heat displacement on a working medium in the heat exchange system simultaneously, so that the quantity of the working medium in the system is greatly increased, and the refrigerating/heating efficiency of the system is improved. The more the number of parallel heat displacement systems is, the higher the refrigerating/heating efficiency of the heat exchange system is.
Description
Technical field
The present invention relates to technical field of heat exchange, particularly relate to a kind of heat-exchange system plural parallel stage replacement module.
Background technology
Such as Fig. 1, traditional air conditioner and heat pump heat/and refrigeration system includes compressor, condenser, throttling element and evaporimeter, heat/cooling system in low-temp low-pressure working medium flow through evaporimeter absorb heat gasification, it is compressed to the liquid of HTHP within the compressor, flow through condenser release heat and be cooled to highly pressurised liquid, finally after throttling element is depressured, be again introduced into evaporimeter.Working medium is constantly heat absorption, heat release in intrasystem cyclic process, it is achieved system heats/freezes.Above-mentioned heat/refrigeration system under the operating mode of outdoor low temperature, especially when required condensation temperature is higher, heating capacity decay is extremely serious, even cannot normal startup optimization.
Heat/refrigeration system is when for heating, being installed on by condenser in the environment needing to heat, working medium absorbs the heat in evaporimeter local environment in evaporimeter, and is delivered in condenser discharge heat through working medium runner, to improve the temperature of condenser local environment, reach heating effect.Heat/refrigeration system is when for freezing, evaporimeter is installed in the environment needing refrigeration, working medium absorbs the heat in evaporimeter local environment to reduce the temperature of evaporimeter local environment in evaporimeter, and in working medium runner is delivered in condenser the environment being discharged into residing for condenser by the heat absorbed, reach refrigeration.
As shown in Figure 2, the application scenarios of traditional air conditioner and heat pump refrigerating/heating is divided for two regions: the condensing zone of working medium release heat and working medium absorb the evaporating area of heat, it actual application places is not isolation between condensing zone and evaporating area, they temperature each other are gradual changes, and condensing zone and evaporating area can not divided and come by an obvious temperature limit.Condensed device HTHP working medium out can enter throttling element with the form of gas-liquid two-phase state before non-total condensation, while condensing zone heat dissipation capacity reduces, the throttle efficiency of strong influence throttling element, can the minimizing of evaporated liquid working medium amount and the decline of matter due to enter evaporating area, and then affect the heat absorption efficiency of evaporating area evaporimeter so that whole heat/the heating of refrigeration system/refrigerating capacity has a greatly reduced quality.
If application publication number is CN 101165438, Shen Qing Publication day is that the application for a patent for invention of on 04 23rd, 2008 discloses a kind of super low temperature heat pump air conditioner system.This system includes compressor, main throttle part, indoor and outdoor heat exchanger, gas-liquid separator, cross valve, magnetic valve, is connected by pipeline between each parts；Described system also includes at least one flasher components, and an outlet of described flasher components is connected by the air entry of pipeline with described compressor.Use enhancement mode jet screw compressor and steam injection system.When worst cold case heating operation, utilizing flash vessel ejector refrigeration agent, make compression function suck more cold-producing mediums, it is achieved quasi-Two-stage Compression, improve heating capacity and Energy Efficiency Ratio, keep again relatively low compression ratio and delivery temperature simultaneously, operation of air conditioner is reliable and stable.But, owing to increasing enhancement mode jet screw compressor and vapor injection system in this air-conditioning system, cost of manufacture is greatly improved, and the energy consumption needed when whole air-conditioning system is run also is greatly increased.And in extreme environment, in order to improve the comfort of user, we more want to can be by environment temperature regulation to the target temperature needed in the shortest time.By increase heat/refrigeration system in the amount of refrigerating/heating working medium of circulation can improve the amount of the heat carrier in a refrigerating/heating cyclic process, thus improve the refrigerating/heating efficiency of system.But, this heat pump type air conditioning system easily causes compressor and vapor injection system overload operation when working medium amount increases.The most important thing is in preceding solution, during working medium is flowed to evaporating area by condensing zone, the loss of working medium Quantity of heat yet suffers from, whole heat/energy of refrigeration system total some can waste in this process so that heat/efficiency of refrigeration system is unable to reach optimum.
Summary of the invention
The present invention solves that above-mentioned technical problem provides a kind of replacement module for heat-exchange system.This replacement module forms isolation displacement zone between the condensing zone and evaporating area of heat-exchange system.
Technical scheme is as follows:
A kind of heat-exchange system plural parallel stage replacement module, it is characterised in that: include the heat exchange system in parallel that isolated part and at least two heat displacement subsystem being arranged in described isolated part are constituted；Described isolated part includes isolating entrance, isolation low in calories outlet and high heat isolation outlet；Described heat exchange system connects described isolation entrance, described isolation outlet low in calories and the isolation outlet of described high heat.Described heat insulating member be internally formed insulated space, reduce that insulated space is internal and heat exchange between external environment.Described heat exchange system will enter gas-liquid mixed state working medium therein by described isolation entrance and be divided into two parts, the heat of a portion liquid state working medium is transferred in another part gas-liquid mixed state working medium by the insulated space of the internal shape of heat insulating member, the part working medium providing heat becomes the lower liquid refrigerant of temperature through isolation outlet low in calories, and through heating/and the throttling element of refrigeration system delivers to the entrance of evaporimeter.Make the Temperature of Working entering evaporimeter lower, regulate evaporating pressure so that the heat absorption capacity of evaporimeter is higher.Multiple heats displacement subsystem in described heat exchange system in parallel the working medium in heat exchanging system can carry out heat displacement simultaneously, substantially increases the amount of working medium in system, thus provides the refrigerating/heating efficiency of system.The quantity of heat exchange system in parallel is the most, and the refrigerating/heating efficiency of heat-exchange system is the strongest.Further, working medium is distributed to each heat exchange system and carries out heat exchange, the heat exchange area of working medium can be improved, so that the heat exchanger effectiveness of whole heat exchange system in parallel reaches a high level.Even if also being able in extreme temperature conditions be rapidly achieved default target temperature.
As preferably, described heat displacement subsystem includes heating unit, heat absorbing units and displacement unit；The entrance of described heat absorbing units connects described isolation entrance, the outlet of described heat absorbing units connects described isolation outlet low in calories, the entrance of described heating unit connects the outlet of described displacement unit, the outlet of described heating unit connects the isolation outlet of described high heat, and the entrance of described displacement unit connects described isolation outlet low in calories.Enter the working medium of described heat displacement subsystem through described isolation entrance, in described heat absorbing units, absorbed a part of heat, become temperature less than the working medium low in calories flowing into Temperature of Working through described isolation entrance.This part working medium low in calories part is evaporated through the throttling element entrance evaporimeter absorption heat of heat-exchange system, owing to its temperature is lower, improve the temperature difference between evaporator inlet and outlet, improve the service behaviour of evaporimeter, thus improve the ability to work of whole system.Remaining a part of working medium sends the heating unit of heat displacement subsystem back to, absorbs the temperature of working medium in described heat absorbing units.Plural parallel stage isolation replacement module utilizes the heat that distributes during flowing to evaporimeter of working medium flowing out condenser that working medium carries out heat displacement again, so that the temperature flowing out the working medium that the throttling element through heat-exchange system flows to evaporimeter is lower.And in the process, it is the heat (this partial heat is the low-quality heat energy that cannot recycle in the formula cycle applications system of traditional Kano) of working medium release in system itself due to utilize, therefore need not extra power consumption, from the point of view of entirety, promote the whole efficiency of heat-exchange system.
As preferably, described isolation entrance arranges throttling element.Described throttling element is equivalent to, by the throttling element reach of evaporimeter front end in original heat-exchange system, effectively to be distributed by available heat at condensing zone, improve effective quantity of heat production of system, it is to avoid heat waste.
As preferably, described heat absorbing units includes the first heat exchange plate, described first heat exchange plate includes the first working medium entrance, the first sender property outlet, heat absorption working medium runner and collector tube, and described heat absorption working medium runner connects with the first working medium entrance, described collector tube and described heat absorption working medium flow passage；Described heating unit includes the second heat exchange plate, described second heat exchange plate includes the second working medium entrance, the second sender property outlet, heat supply working medium runner and discharge, described heat supply working medium runner connects with described second working medium entrance, described discharge and described heat supply working medium flow passage；Described Flow-rate adjustment module connects described first sender property outlet and described second working medium entrance.The flow of the working medium of heating unit is flowed to by heat absorbing units, it is achieved to the regulation of working medium density in heat absorbing units and heating unit by described Flow-rate adjustment module.The working medium density in described first heat exchange plate is regulated more than the working medium density in described heating unit so that total enthalpy of the working medium in described heat absorption working medium runner is more than total enthalpy of working medium in described heat supply working medium runner by described Flow-rate adjustment module.Thus realizing the heat exchange in the insulated space that described isolated part is formed of described first heat exchanger plates and described second heat exchanger plates, the working medium heat in heat absorption working medium runner is transferred in the working medium in heat supply working medium runner.
As preferably, described collector tube is connected by the first return flow line with described heat absorption working medium runner, and the described position to return flow line with the tie point of described collector tube is higher than the position of described first return flow line and the tie point of described heat absorption working medium runner.
As preferably, described heat absorbing units arranges gas phase return duct, being connected by the second return flow line between described gas phase return duct and described heat absorbing units, the position of the tie point of described second return flow line and described heat absorption working medium runner is less than the position of described second return flow line with the tie point of described gas phase return duct.
As preferably, described discharge is connected by the 3rd return flow line with described heat supply working medium runner, and the position of the tie point of described 3rd return flow line and described discharge is higher than the position of described 3rd return flow line with the tie point of described heat supply working medium runner.
As preferably, described heating unit arranges liquid-phase reflux pipe, described liquid-phase reflux pipe is connected by the 4th return flow line with described heat supply working medium runner, and the position of the tie point of described 4th return flow line and described liquid-phase reflux pipe is less than the position of described 4th return flow line with the tie point of described heat supply working medium runner.
As preferably, described heat absorption working medium runner and described heat supply working medium runner fit tightly, and the working medium in described heat absorption working medium runner flows to flow to contrary with the working medium in described heat supply working medium runner.
As preferably, described throttling element is reducing pipe, and described Flow-rate adjustment module is capillary.
Such as Fig. 3, technical scheme changes the tradition big region of formula cycle applications system two, Kano, the tectonic framework of four big parts.The working medium that condensed device flows out enters back into described evaporimeter through the isolation displacement zone formed based on described plural parallel stage replacement module.Condensing zone and evaporating area are kept apart by isolation displacement zone, reclaim the energy of heat-exchange system loss during working medium is entered described evaporimeter by condenser as far as possible, and the energy of recovery is re-used for heat-exchange system heat/refrigeration work, whole heat-exchange system energy loss for outside is greatly reduced, improve the efficiency of heat-exchange system, and significantly add the heat absorption capacity of system simultaneously, improve the efficiency of system.Multiple heats displacement subsystem in heat exchange system in parallel the working medium in heat exchanging system can carry out heat displacement simultaneously, substantially increases the amount of working medium in system, thus provides the refrigerating/heating efficiency of system.The quantity of heat exchange system in parallel is the most, and the refrigerating/heating efficiency of heat-exchange system is the strongest.
Accompanying drawing explanation
Fig. 1 is existing to heat the/system diagram of refrigeration system.
Fig. 2 is existing to heat/refrigeration system scene graph.
Fig. 3 plural parallel stage replacement module structural representation.
Fig. 4 heat displacement subsystem structure schematic diagram one.
Fig. 5 heat displacement subsystem structure schematic diagram two.
Fig. 6 is the heat-exchange system scene graph of the plural parallel stage replacement module using the present invention.
Fig. 7 isolation based on plural parallel stage replacement module displacement zone system diagram.
Fig. 8 uses the heat-exchange system one of the plural parallel stage replacement module of the present invention.
Fig. 9 uses the heat-exchange system two of the plural parallel stage replacement module of the present invention.
Figure 10 uses the heat-exchange system three of the plural parallel stage replacement module of the present invention.
Figure 11 uses the heat-exchange system four of the plural parallel stage replacement module of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail.
Embodiment one
Such as Fig. 3 one heat-exchange system plural parallel stage replacement module, including the isolated part 1 being made up of heat-barrier material, and at least two heat being arranged in isolated part replaces the heat exchange system in parallel that subsystem is constituted.Heat displacement subsystem includes heat absorbing units 2, heating unit 3 and displacement unit.Isolated part 1 stops the heat exchange of its internal working medium and external environment.Isolated part 1 is provided with isolation entrance 11, isolation outlet 12 low in calories and high heat isolation outlet 13.The entrance of heat absorbing units connects isolation entrance, and the outlet of heat absorbing units connects isolation outlet low in calories, the outlet of the entrance linker substitution unit of heating unit, and the outlet of heating unit connects high heat isolation outlet, and the entrance of displacement unit connects isolation outlet low in calories.Isolation entrance is provided with first throttle part 5.
Such as Fig. 4, heat absorbing units includes the first heat exchange plate 2 of the metal material vertically placed, and this first heat exchange plate 2 includes being arranged on the first working medium entrance 21 at top, being arranged on the first sender property outlet 22 of bottom and be arranged on the heat absorption working medium runner 23 between the first working medium entrance 21 and the first sender property outlet 22.Heat absorption working medium runner 23 includes connecting the shunting section of the first working medium entrance 21, the section of confluxing of the first sender property outlet 22 and connecting the endotherm section of shunting section and the section of confluxing.Shunting section and the section of confluxing are in net distribution, the first working medium entrance the working medium entered all is assigned in endotherm section by the very first time.Downward opening V-arrangement heat radiation line it is provided with on the metal shell of the first heat exchange plate 2.
Heating unit includes the second heat exchange plate 3 of the metal material vertically placed, and this second heat exchange plate 3 includes being arranged on the second working medium entrance 31 of bottom, being arranged on second sender property outlet 32 at top and be arranged on the heat supply working medium runner 33 between the second working medium entrance 31 and the second sender property outlet 32.Heat supply working medium runner 33 includes connecting the shunting section of the second working medium entrance 31, the section of confluxing of the second sender property outlet 32 and connecting the confession hot arc of shunting section and the section of confluxing.Shunting section and the section of confluxing are in net distribution, the second working medium entrance the working medium entered all is assigned in endotherm section by the very first time.Opening up V-arrangement heat radiation line it is provided with on the metal shell of the second heat exchange plate 2.
First heat exchange plate 2 and the second heat exchange plate 3 are closely spaced and are stacked in isolated part.First heat exchange plate 2 can be to have mutually isostructural heat exchange plate with the second heat exchange plate 3, is inverted the most in use.The working medium entrance of the first heat exchange plate 2 connects the entrance of heat absorbing units, and the sender property outlet of the first heat exchange plate 2 connects the outlet of heat absorbing units.The working medium entrance of the second heat exchange plate 3 connects the entrance of heating unit, and the sender property outlet 32 of the second heat exchange plate 3 connects the outlet of heating unit.The entrance of the second throttling element 4 connects the outlet (sender property outlet 22 of the i.e. first heat exchange plate) of heat absorbing units, and the outlet of the second throttling element 4 connects heating unit entrance (the working medium entrance 31 of the i.e. second heat exchange plate).
Second throttling element 4 can use capillary-compensated part, and first throttle part uses diameter reducing pipe.Second throttling element 4 regulates the flow of the working medium being flowed to heating unit by heat absorbing units and realizes the regulation to the working medium density in heat absorbing units and heating unit.The refrigerant flow rate controlling the second throttling element is consistently less than the refrigerant flow rate of first throttle part.Environment temperature in the condensing zone that refrigerant flow rate in first throttle part and the second throttling element can heat simultaneously as required dynamically adjusts: increase along with the rising of environment temperature, and the refrigerant flow rate of first throttle part along with the pace of change of temperature change more than the refrigerant flow rate of the second throttling element along with the speed of temperature change.As preferably, can increase for controlling first throttle part, the controller of the second throttling element refrigerant flow rate in heat-exchange system, and the temperature sensor of detection environment temperature, the detection of temperature sensor exports to controller, and controller dynamically regulates first throttle part and the flow velocity of the second throttling element according to the environment temperature of temperature sensor feedback according to aforementioned rule.Second throttling element 4 regulates the working medium density in heat absorbing units more than the working medium density in heating unit, making have mutually isostructural first heat exchange plate 2 and the second heat exchange plate 3, in the first heat exchange plate 2, total enthalpy of working medium is more than total enthalpy of the working medium in the second heat exchanger plates 3.First heat exchange plate 2 of metal material and the second heat exchange plate 3 closely overlap, and owing to both total enthalpies are different, cause them to carry out heat transfer each other.Gas-liquid mixed state working medium in the second heat exchange plate 3 absorbs the working medium heat of the gas-liquid mixed state in the first heat exchange plate 2, it is gaseous state that working medium in second heat exchange plate 3 absorbs heat of vaporization, working medium release heat in first heat exchange plate 2 is liquefied, and temperature reduces further.
The working medium of gas-liquid two-phase state is through the heat absorbing units of heat displacement subsystem, the working medium heat flowed out by the outlet of heat absorbing units is transferred, wherein most working medium becomes the lower liquid refrigerant of temperature and flows out to isolation outlet low in calories, is transported to the throttling element of heat-exchange system.Remaining part working medium is sent back to the heating unit of heat displacement subsystem, becomes gaseous working medium and deliver to compressor air suction mouth through high heat isolation outlet after absorbing heat.Heat exchange system in parallel realizes exchanging the heat of a large amount of working medium at short notice, improves the plural parallel stage isolated area heat exchange coefficient to working medium so that heating is more applicable for the quick heating needs that severe extreme low temperature heats in environment.Heat absorbing units and the heating unit of two heat displacement subsystems the most closely overlap in shell, can increase the area of heat exchange, improve the heat exchange capacity of heat displacement subsystem.It addition, thermal insulation board can be arranged in the enclosure, described thermal insulation board forms two independent insulated spaces in described enclosure and is respectively used to accommodate two heat displacement subsystems.The amount of working medium in the heating unit of heat exchange system at different levels can be branched to by adjustment, control the duty of two heat exchange system respectively, ensure that two heats displacement subsystems will not influence each other simultaneously.Group even can be selected to be used alone wherein one-level heat exchange system or open two-stage heat exchange system simultaneously and be operated, to meet heating in the different different demands used in environment.Even if one of them heat exchange system breaks down, it is also ensured that another heat exchange system will not be affected by working alone, thus improves the stability of whole heating.
Embodiment two
Such as Fig. 3 one heat-exchange system plural parallel stage replacement module, including the isolated part 1 being made up of heat-barrier material, and at least two heat being arranged in isolated part replaces the heat exchange system in parallel that subsystem is constituted.Heat displacement subsystem includes heat absorbing units 2, heating unit 3 and displacement unit.Isolated part 1 stops the heat exchange of its internal working medium and external environment.Isolated part 1 is provided with isolation entrance 11, isolation outlet 12 low in calories and high heat isolation outlet 13.The entrance of heat absorbing units connects isolation entrance, and the outlet of heat absorbing units connects isolation outlet low in calories, the outlet of the entrance linker substitution unit of heating unit, and the outlet of heating unit connects high heat isolation outlet, and the entrance of displacement unit connects isolation outlet low in calories.Isolation entrance is provided with first throttle part 5.
Such as Fig. 5, heat absorbing units includes the first heat exchange plate 2 of the metal material vertically placed, and this first heat exchange plate 2 includes being arranged on the working medium entrance 21 at top, the sender property outlet 22 being arranged on bottom, the heat absorption working medium runner 26, collector tube 23 and the gas phase return duct 24 that are arranged between working medium entrance and sender property outlet.Heat absorption working medium runner 26 is curved channel, extends the length of heat absorption working medium runner 26, and the runner simultaneously bent slow down working medium flowing velocity wherein, extends the working medium time of staying in heat absorption working medium runner 26, improves the endothermic effect of heat absorption working medium runner.Collector tube 23 and gas phase return duct 24 are divided into the both sides of heat absorption working medium runner 26.Heat absorption working medium runner 26 entrance connects working medium entrance 21, and collector tube 23 is connected by the first return flow line 25 with heat absorption working medium runner 26, and gas phase return duct 24 is connected by the second return flow line 27 with heat absorption working medium runner 26.Heat absorption wage runner 26 includes subflow 261 road of some bendings, and each subflow road includes successively: endotherm section the 2611, first liquid phase separation section 2612, first mixes clashes into section 2613 and the first gas phase segregation section 2614；One end of first liquid phase separation section connects the first mixing and clashes into section, and the other end of the first liquid phase separation section connects the first return flow line 25；One end of first gas phase segregation section connects the first mixing and clashes into section, and the other end of the first gas phase segregation section connects the second return flow line 27.It is gaseous working medium that part working medium absorbs heat of vaporization in endotherm section, enter into the first liquid phase separation section, first liquid phase separation section includes the first stop part being bent upwards so that the liquid refrigerant in gas-liquid mixed working medium returns to collector tube 23 owing to Action of Gravity Field is downwardly into the first return flow line 25.Remaining gas-liquid mixed working medium enters the first mixing of bending and clashes into section, first mixing is clashed into section and is included multiple bend, gas working medium particle and liquid working substance particle in gas-liquid mixed working medium run into bend in the first mixing shock section and are blocked, change movement locus, being sufficiently mixed of liquid refrigerant particle and gaseous working medium particle can be strengthened, strengthen the heat exchange of working medium.Subsequently entering the first gas phase segregation section, the first gas phase segregation section includes the second stop part being bent upwards so that the gaseous working medium in gas-liquid mixed working medium returns to gas phase return duct 24 owing to lighter in weight is upwardly into the second return flow line 27.First return flow line 25 is the line flowing channel tilted, and the first return flow line 25 is higher than the first return flow line 25 and the position of the tie point of the working medium runner 26 that absorbs heat with the position of the tie point of collector tube 23.Second return flow line 27 is the line flowing channel tilted, and the second return flow line 27 is less than the second return flow line 27 and the position of the tie point of the working medium runner 26 that absorbs heat with the position of the tie point of collector tube 23.
Gas-liquid is mixed the working medium of state heat of major part working medium in heat absorption working medium runner and is absorbed transfer, becomes the liquid refrigerant that temperature is lower.Liquid refrigerant is collected owing to Action of Gravity Field enters in collector tube 23 through the first downward-sloping return flow line 25.Remain as the flowing in the heat absorption working medium runner 26 of bending of the working medium of gaseous state, enter gas phase return duct 24 through acclivitous second return flow line 27 and return and at working medium entrance 21, be again introduced into heat absorption working medium runner 26 so that its heat can be shifted by absorption and be liquefied.
Heating unit includes the second heat exchange plate 3 of the metal material vertically placed, and this second heat exchange plate 3 includes working medium entrance 31, the sender property outlet 32 being arranged on top and the heat supply working medium runner 36 being arranged between working medium entrance 31 and sender property outlet 32, discharge 33 and the liquid-phase reflux pipe 34 being arranged on bottom.Heat supply working medium runner 36 is curved channel, extends the length of heat supply working medium runner 36, and the runner simultaneously bent slow down working medium flowing velocity wherein, extends the working medium time of staying in heat supply working medium runner 36, improves the endothermic effect of heat absorption working medium runner.Liquid-phase reflux pipe 34 and discharge 33 are divided into the both sides of heat supply working medium runner 36.Heat supply working medium runner 36 entrance connects working medium entrance 31, and discharge 33 is connected by the 3rd return flow line 37 with heat supply working medium runner 36, and liquid-phase reflux pipe 34 is connected by the 4th return flow line 35 with heat supply working medium runner 36.Heat supply wage runner 36 includes subflow 361 road of some bendings, and each subflow road includes successively: mixes for hot arc the 3611, second gas phase segregation section 3614, second and clashes into section 3613 and second liquid phase segregation section 3612；One end of second liquid phase segregation section connects mixing and clashes into section, and the other end of second liquid phase segregation section connects the 3rd return flow line 35；One end of second gas phase segregation section connects mixing and clashes into section, and the other end of gas phase segregation section connects the 4th return flow line 37.Part liquid working medium discharges thermal temperature in for hot arc and reduces, enter into second liquid phase segregation section, second liquid phase segregation section includes the first stop part being bent upwards so that the liquid refrigerant in gas-liquid mixed working medium returns to liquid-phase reflux pipe 34 owing to Action of Gravity Field is downwardly into the 3rd return flow line 35.Remaining gas-liquid mixed working medium enters the second mixing of bending and clashes into section, second mixing is clashed into section and is included multiple bend, gas working medium particle and liquid working substance particle in gas-liquid mixed working medium run into bend in the second mixing shock section and are blocked, change movement locus, being sufficiently mixed of liquid refrigerant particle and gaseous working medium particle can be strengthened, strengthen the heat exchange of working medium.Subsequently entering the second gas phase segregation section, the second gas phase segregation section includes the second stop part being bent upwards so that the gaseous working medium in gas-liquid mixed working medium returns to discharge 34 owing to lighter in weight is upwardly into the 4th return flow line 37.3rd return flow line 37 is the line flowing channel tilted, and the position of the tie point of the 3rd return flow line 37 and discharge 33 is higher than the position of the 4th return flow line 37 and the tie point of heat supply working medium runner 36,.4th return flow line 35 is the line flowing channel tilted, and the position of the tie point of the 4th return flow line 35 and liquid-phase reflux pipe 34 is less than the position of the 4th return flow line 35 with the tie point of heat supply working medium runner 36.
Working medium major part working medium in heat supply working medium runner 36 becomes gaseous working medium after absorbing heat.Gaseous working medium is collected owing to Action of Gravity Field enters in discharge 33 through acclivitous first return flow line 37.The working medium remaining as liquid flows in the heat supply working medium runner 36 of bending, enter liquid-phase reflux pipe 34 through the second downward-sloping return flow line 35 to return and at working medium entrance 21, be again introduced into heat supply working medium runner 36 so that it again can absorb heat and become gaseous working medium.
First heat exchange plate 2 and the second heat exchange plate 3 are closely spaced and are stacked in isolated part 1.The working medium entrance of the first heat exchange plate 2 connects the entrance of heat absorbing units, and the sender property outlet of the first heat exchange plate 2 connects the outlet of heat absorbing units.The working medium entrance of the second heat exchange plate 3 connects the entrance of heating unit, and the sender property outlet 32 of the second heat exchange plate 3 connects the outlet of heating unit.The entrance of the second throttling element 4 connects the outlet (sender property outlet 22 of the i.e. first heat exchange plate) of heat absorbing units, and the outlet of the second throttling element 4 connects heating unit entrance (the working medium entrance 31 of the i.e. second heat exchange plate).First heat exchange plate 2 and the second heat exchange plate 3 fit tightly, and the working medium in heat absorption working medium runner 26 flows from top to bottom, and the working medium in heat supply working medium runner 36 flows from lower to upper, and the working medium in two working medium runners forms convection current, promote heat exchange each other.
Second throttling element 4 can use capillary-compensated part, and first throttle part uses diameter reducing pipe.Second throttling element 4 regulates the flow of the working medium being flowed to heating unit by heat absorbing units and realizes the regulation to the working medium density in heat absorbing units and heating unit.The refrigerant flow rate controlling the second throttling element is consistently less than the refrigerant flow rate of first throttle part.Environment temperature in the condensing zone that refrigerant flow rate in first throttle part and the second throttling element can heat simultaneously as required dynamically adjusts: increase along with the rising of environment temperature, and the refrigerant flow rate of first throttle part along with the pace of change of temperature change more than the refrigerant flow rate of the second throttling element along with the speed of temperature change.As preferably, can increase for controlling first throttle part, the controller of the second throttling element refrigerant flow rate in heat-exchange system, and the temperature sensor of detection environment temperature, the detection of temperature sensor exports to controller, and controller dynamically regulates first throttle part and the flow velocity of the second throttling element according to the environment temperature of temperature sensor feedback according to aforementioned rule.Second throttling element 4 regulates the working medium density in heat absorbing units more than the working medium density in heating unit, making have mutually isostructural first heat exchange plate 2 and the second heat exchange plate 3, in the first heat exchange plate 2, total enthalpy of working medium is more than total enthalpy of the working medium in the second heat exchanger plates 3.First heat exchange plate 2 of metal material and the second heat exchange plate 3 closely overlap, and owing to both total enthalpies are different, cause them to carry out heat transfer each other.Gas-liquid mixed state working medium in the second heat exchange plate 3 absorbs the working medium heat of the gas-liquid mixed state in the first heat exchange plate 2, it is gaseous state that working medium in second heat exchange plate 3 absorbs heat of vaporization, working medium release heat in first heat exchange plate 2 is liquefied, and temperature reduces further.
The working medium of gas-liquid two-phase state is through the heat absorbing units of heat displacement subsystem, the working medium heat flowed out by the outlet of heat absorbing units is transferred, wherein most working medium becomes the lower liquid refrigerant of temperature and flows out to isolation outlet low in calories, is transported to heat-exchange system throttling element.Remaining part working medium is sent back to the heating unit of heat displacement subsystem, becomes gaseous working medium and deliver to compressor air suction mouth through high heat isolation outlet after absorbing heat.Heat exchange system in parallel realizes exchanging the heat of a large amount of working medium at short notice, improves the plural parallel stage isolated area heat exchange coefficient to working medium so that heating is more applicable for the quick heating needs that severe extreme low temperature heats in environment.Heat absorbing units and the heating unit of two heat displacement subsystems the most closely overlap in shell, can increase the area of heat exchange, improve the heat exchange capacity of heat displacement subsystem.It addition, thermal insulation board can be arranged in the enclosure, described thermal insulation board forms two independent insulated spaces in described enclosure and is respectively used to accommodate two heat displacement subsystems.The amount of working medium in the heating unit of heat at different levels displacement subsystem can be branched to by adjustment, control the duty of two heats displacement subsystems respectively, ensure that two heats displacement subsystems will not influence each other simultaneously.Group even can be selected to be used alone one of them heat displacement subsystem or two heats displacement subsystems of unlatching simultaneously are operated, to meet the heating different demands in different use environment.Even if one of them heat displacement subsystem breaks down, it is also ensured that another heat displacement subsystem will not be affected by working alone, thus improves the stability of whole heating.
The plural parallel stage replacement module of present invention connected mode in heat-exchange system is as illustrated in figs. 8-11:
Compressor that heat-exchange system includes being connected by working medium runner, condenser, evaporimeter, heat-exchange system throttling element, plural parallel stage replacement module.The outlet of compressor connects the entrance of condenser, the outlet of condenser connects the isolation entrance of plural parallel stage replacement module, the isolation outlet low in calories of plural parallel stage replacement module connects the entrance of heat-exchange system throttling element, the outlet of heat-exchange system throttling element connects the entrance of evaporimeter, and the outlet of evaporimeter connects the entrance of compressor.Condenser is placed among closed environments such as needing the room that heats, evaporimeter is placed on outside this closed environment.The closed environment at condenser place forms condensing zone, and the environment at evaporimeter place forms evaporating area.During working medium flows in working medium runner, absorb the amount of heat of evaporating area, and be discharged in condensing zone, heat environment heat supply for airtight, improve the temperature in room, reach heating effect.
The HTHP working medium flowed out in the outlet of the condenser of condensing zone is gas-liquid mixed state, enters plural parallel stage replacement module along working medium runner.The isolated part of plural parallel stage replacement module is formed therein the environment of a relative insulation, reduces the heat exchange of working medium and the external environment being entered plural parallel stage replacement module by condensing zone.In plural parallel stage replacement module, substantially only exist the heat exchange of working medium in heat absorbing units and heating unit.Finally, the Temperature of Working of the entrance flowing out into first throttle part through isolation outlet low in calories is lower than the Temperature of Working flowed out by the outlet of condenser.The first throttle part of isolation porch, is equivalent to, by the heat-exchange system throttling element reach of evaporimeter front end in original heat-exchange system, effectively to be distributed by available heat at condensing zone, improve effective quantity of heat production of system, it is to avoid heat waste.Reducing the heat of the working medium being entered evaporimeter by first throttle part, the Temperature of Working entering evaporimeter is lower, regulates evaporating pressure so that the heat absorption capacity of evaporimeter is higher.
The working medium containing more gaseous working mediums that absorption heat is evaporated in heating unit flows out through high heat isolation outlet.High heat isolation outlet is connected to the entrance of compressor, improves suction pressure of compressor, thus improve the compression ratio of compressor.
Such as Fig. 9, evaporimeter can also include common evaporimeter and heat collector panel (the different poly-state absorber plate of passive type heat absorption).The outlet of compressor connects the entrance of condenser, the outlet of condenser connects the isolation entrance of isolator, the isolation outlet low in calories of plural parallel stage replacement module connects entrance and the entrance of the 4th throttling element of first throttle part respectively, the outlet of first throttle part connects the entrance of common evaporimeter, the outlet of the 4th throttling element connects the entrance of heat collector panel, the outlet of common evaporimeter connects the entrance of compressor, and the outlet of heat collector panel connects suction port of compressor.Condenser is placed among closed environments such as needing the room that heats, evaporimeter is placed on outside this closed environment.The closed environment at condenser place forms condensing zone, and the environment at evaporimeter place forms evaporating area.
Such as Figure 10, also the high temperature of plural parallel stage replacement module can be isolated outlet and be connected to the entrance of heat-exchange system throttling element.The working medium containing more gaseous working mediums that absorption heat is evaporated in heating unit flows out through high heat isolation outlet, and enter heat collector panel by heat-exchange system throttling element, improve the accounting of the gaseous working medium entered in heat collector panel working medium, make the working medium distribution in the heat collector panel of passive heat absorbing type more uniform, be equivalent to carry out a primary evaporator for heat collector panel, improve the heating capacity of system.
Such as Figure 11, high heat isolation outlet is respectively connecting to the entrance of heat-exchange system throttling element and the entrance of compressor.On the one hand, improve suction pressure of compressor, thus improve the compression ratio of compressor；Another reverse side, enter heat collector panel by the 4th throttling element, improve the accounting of the gaseous working medium entered in heat collector panel working medium so that the working medium distribution in the heat collector panel of passive heat absorbing type is more uniform, be equivalent to carry out a primary evaporator for heat collector panel, improve the heating capacity of system.The working medium containing more gaseous working mediums that absorption heat is evaporated in heating unit flows out through high heat isolation outlet.
The addition of plural parallel stage replacement module changes the tradition big region of formula cycle applications system two, Kano, the tectonic framework of four big parts, isolation displacement zone is set between described condensing zone and described evaporating area, and by the heat-exchange system throttling element reach of evaporimeter front end in original heat-exchange system.Available heat can effectively be distributed at condensing zone by the reach of throttling element, improves effective quantity of heat production of system, it is to avoid heat waste.Plural parallel stage replacement module exchanges with outside heat during decreasing entrance evaporating area, working medium condensed district, inside plural parallel stage replacement module, working medium is divided into two parts simultaneously, it is extracted in the inferior waste heat of condensation that tradition Kano formula cycle applications system cannot recycle so that leave isolation displacement zone through low temperature isolation outlet and enter the Temperature of Working of evaporimeter be directly entered the Temperature of Working of evaporimeter than by condensator outlet lower.Ensure that in whole cooling/heating system and freeze, heat the complete of scene, reduce working medium and entered the condenser heat during evaporating area and the loss of evaporation heat by condensing zone.By the reasonably optimizing to plural parallel stage replacement module, it is substantially equal to ideal efficiency for the efficiency of Carnot cycle machine and has opened up out a direction.Thus breach the technical bottleneck of cooling/heating system, substantially increase the Energy Efficiency Ratio of cooling/heating system.
Although being described in conjunction with the accompanying embodiments of the present invention, but those of ordinary skill in the art can make various deformation or amendment within the scope of the appended claims.
Claims (10)
1. a heat-exchange system plural parallel stage replacement module, it is characterised in that: include the heat exchange system in parallel that isolated part and at least two heat displacement subsystem being arranged in described isolated part are constituted；Described isolated part includes isolating entrance, isolation low in calories outlet and high heat isolation outlet；Described heat exchange system connects described isolation entrance, described isolation outlet low in calories and the isolation outlet of described high heat.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 1, it is characterised in that: described heat displacement subsystem includes heating unit, heat absorbing units and displacement unit；The entrance of described heat absorbing units connects described isolation entrance, the outlet of described heat absorbing units connects described isolation outlet low in calories, the entrance of described heating unit connects the outlet of described displacement unit, the outlet of described heating unit connects the isolation outlet of described high heat, and the entrance of described displacement unit connects described isolation outlet low in calories.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 2, it is characterised in that: described isolation entrance arranges throttling element.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 3, it is characterized in that: described heat absorbing units includes the first heat exchange plate, described first heat exchange plate includes the first working medium entrance, the first sender property outlet, heat absorption working medium runner and collector tube, described heat absorption working medium runner connects with the first working medium entrance, described collector tube and described heat absorption working medium flow passage；Described heating unit includes the second heat exchange plate, described second heat exchange plate includes the second working medium entrance, the second sender property outlet, heat supply working medium runner and discharge, described heat supply working medium runner connects with described second working medium entrance, described discharge and described heat supply working medium flow passage；Described displacement unit includes Flow-rate adjustment part.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 4, it is characterized in that: described collector tube is connected by the first return flow line with described heat absorption working medium runner, the described position to return flow line with the tie point of described collector tube is higher than the position of described first return flow line and the tie point of described heat absorption working medium runner.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 5, it is characterized in that: described heat absorbing units arranges gas phase return duct, being connected by the second return flow line between described gas phase return duct and described heat absorbing units, the position of the tie point of described second return flow line and described heat absorption working medium runner is less than the position of described second return flow line with the tie point of described gas phase return duct.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 4, it is characterized in that: described discharge is connected by the 3rd return flow line with described heat supply working medium runner, the position of the tie point of described 3rd return flow line and described discharge is higher than the position of described 3rd return flow line with the tie point of described heat supply working medium runner.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 7, it is characterized in that: described heating unit arranges liquid-phase reflux pipe, described liquid-phase reflux pipe is connected by the 4th return flow line with described heat supply working medium runner, and the position of the tie point of described 4th return flow line and described liquid-phase reflux pipe is less than the position of described 4th return flow line with the tie point of described heat supply working medium runner.
9. according to a kind of heat-exchange system plural parallel stage replacement module described in claim 4 or 5 or 6 or 7 or 8, it is characterized in that: described heat absorption working medium runner and described heat supply working medium runner fit tightly, and the working medium in described heat absorption working medium runner flows to flow to contrary with the working medium in described heat supply working medium runner.
A kind of heat-exchange system plural parallel stage replacement module the most according to claim 9, it is characterised in that: described throttling element is reducing pipe, and described Flow-rate adjustment module is capillary.
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Application publication date: 20160907 |