CN105202818A - Flash vessel and heat exchange system with same - Google Patents
Flash vessel and heat exchange system with same Download PDFInfo
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- CN105202818A CN105202818A CN201510626088.2A CN201510626088A CN105202818A CN 105202818 A CN105202818 A CN 105202818A CN 201510626088 A CN201510626088 A CN 201510626088A CN 105202818 A CN105202818 A CN 105202818A
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- 239000007788 liquid Substances 0.000 claims abstract description 77
- 239000003507 refrigerant Substances 0.000 claims description 65
- 230000001502 supplementing effect Effects 0.000 claims description 28
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical group FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 239000013589 supplement Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The embodiment of the invention provides a flash vessel and a heat exchange system with the same. The flash vessel comprises a barrel, a first pipe, a second pipe, a third pipe and a fourth pipe, wherein the first pipe, the second pipe and the third pipe are arranged in the barrel. The first pipe is used for leading a working medium in the gas-liquid mixed state in the barrel or leading out a liquid working medium in the barrel. The second pipe is used for leading out the liquid working medium in the barrel or leading the working medium in the gas-liquid mixed state in the barrel. The third pipe is used for leading out a gas working medium in the barrel. The fourth pipe is arranged in the barrel and used for leading out the liquid working medium in the barrel. According to the flash vessel and the heat exchange system, the flash vessel can supplement the gas working medium for a compressor and can supplement the liquid working medium for the compressor, and therefore the discharge temperature of the compressor is effectively lowered, and the heat exchange system can prepare hot water through the working media with a high critical temperature and a high discharge temperature characteristic.
Description
Technical field
The application relates to air conditioner technical field, particularly relates to a kind of flash vessel and comprises the heat-exchange system of this flash vessel.
Background technology
North cold area temperature in winter is lower, and common heat pump air conditioner often cannot meet the requirement heated winter, and way general in current industry is the low-temperature heat exchange system of the second vapor injection introducing band flash vessel.
Patent document 1 (CN104034100A) discloses a kind of flash vessel and comprises the heat-exchange system of this flash vessel.Fig. 1 is the system composition schematic diagram of the heat-exchange system of patent document 1, as shown in Figure 1, in this heat-exchange system, first refrigerant pipe 53 ' of flash vessel 5 ' is connected with outdoor heat exchanger 3 ' through tube connector, and refrigerant pipe between 53 ' and outdoor heat exchanger 3 ' is provided with choke valve 4 ', second refrigerant pipe 51 ' is connected with indoor heat exchanger 8 ' through tube connector, and refrigerant pipe between the second refrigerant pipe 51 ' and indoor heat exchanger 8 ' is provided with choke valve 7 ', the 3rd refrigerant pipe 52 ' is connected with the gas supplementing opening 12 ' of compressor 1 ' through tube connector.
In patent document 1, during refrigeration, high-pressure liquid refrigerant from outdoor heat exchanger 3 ' is down to middle pressure through choke valve 4 ', flash vessel 5 ' is entered again by the first refrigerant pipe 53 ', flash vessel 5 ' can make because the gaseous coolant of throttling shwoot is separated from liquid refrigerants, the liquid refrigerants formed after being separated is discharged through the second refrigerant pipe 51 ', indoor heat exchanger 8 ' is entered to low-pressure state again through choke valve 7 ' throttling, from the low pressure saturated vapor of indoor heat exchanger 8 ', enter compressor 1 ' through cross valve 2 ', in the first order is compressed to, presses through hot gaseous; And derive from refrigerant pipe 52 ' from the saturated vapor that flash vessel 5 ' is separated, with be compressed to through the first order in press through hot gaseous refrigerant mix, be compressed to high pressure-temperature through the second level again and cross hot gaseous, enter outdoor heat exchanger 3 ' via cross valve 2 ' and be condensed.
Above it should be noted that, just conveniently to technical scheme of the present invention, clear, complete explanation is carried out to the introduction of technical background, and facilitate the understanding of those skilled in the art to set forth.Only can not think that technique scheme is conventionally known to one of skill in the art because these schemes have carried out setting forth in background technology part of the present invention.
Summary of the invention
Present inventor finds, the heat-exchange system of patent document 1 is when high compression ratio, easily there is the problem that compressor row temperature is high, so this heat-exchange system uses the cold-producing medium with low row's temperature characteristics usually, such as R410A etc., but the critical-temperature of the cold-producing medium of these low row's temperature is lower, cannot prepare high-temperature-hot-water.
High-temperature-hot-water is prepared in order to the heat-exchange system of patent document 1 can be utilized, need the cold-producing medium using critical-temperature higher in heat-exchange system, such as R32 etc., but, the higher cold-producing medium of these critical-temperatures has high row's temperature characteristics, and the height that can aggravate compressor arranges warm problem.
Therefore, how to use second vapor injection heat-exchange system with flash vessel to prepare high-temperature-hot-water, and reduce the delivery temperature of compressor, become the problem that the application needs to solve.
The application provides a kind of flash vessel, and comprise the heat-exchange system of this flash vessel, this flash vessel not only can supplement gaseous working medium for compressor, also liquid refrigerant can be supplemented for compressor, thus effectively reduce row's temperature of compressor, heat-exchange system can be used and there is the working medium of high-critical temperature and high row's temperature characteristics to prepare hot water.
According to the first aspect of the embodiment of the present application, a kind of flash vessel is provided, comprises: cylindrical shell; Be arranged at the first pipe of described cylindrical shell, the second pipe and the 3rd pipe, wherein, described first pipe is used for the working medium of gas-liquid mixed state being imported in described cylindrical shell or by the liquid refrigerant in described cylindrical shell derives, described second pipe is used for being derived by the liquid refrigerant in described cylindrical shell or importing in described cylindrical shell by the working medium of gas-liquid mixed state, and described 3rd pipe is used for the gaseous working medium in described cylindrical shell to derive; This flash vessel also comprises the 4th pipe, and it is arranged at described cylindrical shell, for being derived by the liquid refrigerant in described cylindrical shell.
According to the second aspect of the embodiment of the present application, wherein, described working medium is difluoromethane (R32), or the mixing refrigerant containing more than 70% difluoromethane (R32).
According to the third aspect of the embodiment of the present application, wherein, described 4th pipe extends to the bottom of described cylindrical shell.
According to the fourth aspect of the embodiment of the present application, wherein, described 3rd pipe and described 4th pipe merge into a pipe in described cylindrical shell outside.
According to the 5th aspect of the embodiment of the present application, provide a kind of heat-exchange system, comprising: compressor, it has air entry, exhaust outlet and gas supplementing opening; Reversal valve, First Heat Exchanger, the second heat exchanger, first throttle element, and second section fluid element, wherein, the described air entry of described compressor is connected described First Heat Exchanger and described second heat exchanger with described exhaust outlet via described reversal valve; Described flash vessel also comprises the flash vessel in the first aspect-fourth aspect as above-described embodiment as described in either side, and wherein, the first pipe of described flash vessel is connected with described First Heat Exchanger via described first throttle element; Second pipe of described flash vessel is connected with described second heat exchanger via described second section fluid element; 3rd pipe of described flash vessel is connected with the gas supplementing opening of described compressor with the 4th pipe.
According to the 6th aspect of the embodiment of the present application, wherein, described 3rd pipe and/or described 4th pipe are provided with magnetic valve to the pipeline of the described gas supplementing opening of described compressor.
According to the 7th aspect of the embodiment of the present application, wherein, described heat-exchange system also comprises controller, its heating capacity reached needed for the temperature of the working medium of the described exhaust outlet discharge from described compressor and/or described heat-exchange system, controls opening and closing or the opening degree of described magnetic valve.
According to the eighth aspect of the embodiment of the present application, wherein, gas-liquid separator is connected with between the described air entry of described compressor and described cross valve.
The beneficial effect of the application is: this flash vessel effectively can reduce row's temperature of compressor, heat-exchange system can be used and have the working medium of high-critical temperature and high row's temperature characteristics to prepare hot water.
With reference to explanation hereinafter and accompanying drawing, disclose in detail the particular implementation of the application, the principle specifying the application can adopted mode.Should be appreciated that, thus the embodiment of the application is not restricted in scope.In the spirit of claims and the scope of clause, the embodiment of the application comprises many changes, amendment and is equal to.
Accompanying drawing explanation
Included accompanying drawing is used to provide the further understanding to the embodiment of the present application, which constitutes a part for description, for illustrating the embodiment of the application, and comes together to explain the principle of the application with text description.Apparently, the accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the system composition schematic diagram of the heat-exchange system of patent document 1;
Fig. 2 is a shaft section schematic diagram of the flash vessel of the present embodiment 1;
Fig. 3 is a system composition schematic diagram of the heat-exchange system of the present embodiment 2;
Fig. 4 is another system composition schematic diagram of the heat-exchange system of the present embodiment 2;
Fig. 5 is another system composition schematic diagram of the heat-exchange system of the present embodiment 2.
Detailed description of the invention
With reference to accompanying drawing, by description below, the aforementioned and further feature of the application will become obvious.In the specification and illustrated in the drawings, specifically disclose the particular implementation of the application, which show the some embodiments of the principle that wherein can adopt the application, will be appreciated that, the application is not limited to described embodiment, on the contrary, the application comprises the whole amendments fallen in the scope of claims, modification and equivalent.
Embodiment 1
The embodiment of the present application 1 provides a kind of flash vessel, and Fig. 2 is a shaft section schematic diagram of the flash vessel of the present embodiment.As shown in Figure 2, this flash vessel 200 comprises cylindrical shell 201, is arranged at the first pipe 202, second pipe 203 of cylindrical shell, the 3rd pipe 204 and the 4th pipe 205.
Wherein, first pipe 202 is derived for the working medium of gas-liquid mixed state being imported in cylindrical shell 201 or by the liquid refrigerant in cylindrical shell 201, second pipe 203 is for deriving the liquid refrigerant in cylindrical shell 201 or importing in cylindrical shell 201 by the working medium of gas-liquid mixed state, 3rd pipe 204 is for deriving the gaseous working medium in cylindrical shell 201, and the 4th pipe 205 is for deriving the liquid refrigerant in cylindrical shell 201.
In the present embodiment, the working medium of gas-liquid mixed state can enter in cylindrical shell 201 from the first pipe 202, and in cylindrical shell 201, gaseous working medium can be separated with liquid refrigerant.Isolated liquid refrigerant can derive cylindrical shell for heat exchange by the second pipe 203, and liquid refrigerant can also derive cylindrical shell 201 by the 4th pipe 205, and isolated gaseous working medium can derive cylindrical shell 201 by the 3rd pipe 204.Wherein, the liquid refrigerant of deriving from gaseous working medium and the 4th pipe 205 of the 3rd pipe 204 derivation can be imported into the gas supplementing opening of compressor.
In the present embodiment, the working medium of gas-liquid mixed state also can enter in cylindrical shell 201 from the second pipe 203, isolated liquid refrigerant can derive cylindrical shell for heat exchange by the first pipe 202, and, liquid refrigerant and gaseous working medium can derive cylindrical shell 201 respectively by the 4th pipe 205 and the 3rd pipe 204, and are imported into the gas supplementing opening of compressor.
According to the flash vessel of the present embodiment, not only by the 3rd pipe, the gaseous working medium in cylindrical shell can be derived, thus supplement gaseous working medium for compressor, and by the 4th pipe, the liquid refrigerant in cylindrical shell can be derived, thus supplement liquid refrigerant for compressor, and, when liquid refrigerant enters compressor by compressor gas supplementing opening, this liquid refrigerant can be vaporized and absorb heat, and thus, makes row's temperature drop of compressor low.
According to the flash vessel of the present embodiment, can reduce row's temperature of compressor, therefore, compressor can use the working medium with high-critical temperature and high row's temperature characteristics as refrigerant, thus is convenient to prepare hot water.Such as, this compressor can be the single refrigerants such as difluoromethane (R32) with the working medium in this flash vessel, also can be the mixing refrigerant etc. containing more than 70% difluoromethane (R32).
In the present embodiment, as shown in Figure 2, the 4th pipe 205 can extend to the bottom of cylindrical shell 201, and such as the mouth of pipe of the 4th pipe 205 can be positioned at below the minimum level of cylindrical shell 201 liquid refrigerant, thus, is convenient to the liquid refrigerant in cylindrical shell 201 to derive.
In the present embodiment, as shown in Figure 2, the 3rd pipe 204 and the 4th pipe 205 can merge into a pipe 206 in the outside of cylindrical shell 201, and thus, the pipeline that flash vessel is connected with outside is simplified.
Embodiment 2
The embodiment of the present application 2 provides a kind of heat-exchange system, comprises the flash vessel in embodiment 1.
Fig. 3 is a system composition schematic diagram of the heat-exchange system of the present embodiment, and as shown in Figure 3, this heat-exchange system 300 can comprise compressor 301, reversal valve 302, First Heat Exchanger 303, the second heat exchanger 304, first throttle element 305, second section fluid element 306, and flash vessel 200 etc.
In the present embodiment, this compressor 301 can be screw compressor, and it can have fixing compression ratio or variable compression ratio.In the present embodiment, this compressor 301 can have second vapor injection function, such as, it can have air entry 3011, exhaust outlet 3012 and gas supplementing opening 3013 etc., wherein, the air entry 3011 of compressor 301 can be connected First Heat Exchanger 303 and the second heat exchanger 304 via reversal valve 302 with exhaust outlet 3012, and gas supplementing opening 3013 can be connected with the 3rd pipe 204 of flash vessel and the 4th pipe 205.
In the present embodiment, about the explanation of flash vessel 200, can reference example 1.Wherein, the first pipe 202 of flash vessel can be connected with First Heat Exchanger 303 via first throttle element 305; Second pipe 203 of flash vessel can be connected with the second heat exchanger 304 via second section fluid element 306; 3rd pipe 204 of flash vessel can be connected with the gas supplementing opening 3013 of compressor 301 with the 4th pipe 205.
According to the heat-exchange system of the present embodiment, manage as compressor supplements gaseous working medium by the 3rd of flash vessel, thus, increase the capacity of compressor, and, manage as compressor supplements liquid refrigerant by the 4th of flash vessel, thus, when liquid refrigerant enters compressor by compressor gas supplementing opening, this liquid refrigerant can be vaporized and absorb heat, and reduces row's temperature of compressor.
According to the heat-exchange system of the present embodiment, because row's temperature of compressor is lowered, therefore, the working medium with high-critical temperature and high row's temperature characteristics can be used as refrigerant, thus prepare hot water easily, such as, this working medium with high-critical temperature and high row's temperature characteristics can be the single refrigerants such as difluoromethane (R32), also can be the mixing refrigerant etc. containing more than 70% difluoromethane (R32).
In the present embodiment, this reversal valve 302 can have multiple port, and, connection characteristic between each port can change, thus, the air entry 3011 of compressor and exhaust outlet 3012 and the connected relation between First Heat Exchanger 303 and the second heat exchanger 304 can change, such as, when heat-exchange system in a heating mode, First Heat Exchanger 303 can be communicated with air entry 3011, second heat exchanger 304 can be communicated with exhaust outlet 3012, when heat-exchange system in cooling mode, First Heat Exchanger 303 can be communicated with exhaust outlet 3012, second heat exchanger 304 can be communicated with air entry 3011.In the present embodiment, this reversal valve can be such as cross valve.
In the present embodiment, First Heat Exchanger 303 and the second heat exchanger 304 can be heat source side heat exchanger respectively and use side heat exchanger, and such as, First Heat Exchanger can be off-premises station, and the second heat exchanger can be indoor set.About the structure of First Heat Exchanger and the second heat exchanger, can with reference to prior art, the present embodiment repeats no more.
In the present embodiment, first throttle element 305 and the working medium of second section fluid element 306 for by liquid refrigerant throttling being gas-liquid mixed state, this first throttle element 305 and second section fluid element 306 can be such as the throttling arrangements such as electric expansion valve, heating power expansion valve or capillary.
In the present embodiment, as shown in Figure 3, filled arrows is this heat-exchange system Working fluid flow direction in cooling mode, and hollow arrow is this heat-exchange system Working fluid flow direction in a heating mode.
In cooling mode, the high pressure gaseous working medium that the exhaust outlet 3012 of compressor 301 is discharged enters First Heat Exchanger 303 through reversal valve 302, liquefy working medium after condensation, this liquid refrigerant becomes gas-liquid mixed state through first throttle element 305 throttling and enters the cylindrical shell 201 of flash vessel 200 via the first pipe 202, the gas-liquid mixed state working medium entering cylindrical shell 201 is separated in cylindrical shell, operative liquid working medium after separation is derived by the second pipe 203 of flash vessel, the gas-liquid mixed state working medium of low temperature is become through second section fluid element 306 throttling, enter again in the second heat exchanger 304 and evaporate to freeze, the working medium flashing to gaseous state in the second heat exchanger 304 enters the air entry 3011 of compressor 301 through reversal valve 302.In flash vessel 200, isolated gaseous working medium and operative liquid working medium derive through the 3rd pipe 204 and the 4th pipe 205 respectively, and are admitted to the gas supplementing opening 3013 of compressor.
In a heating mode, the exhaust outlet 3012 of the compressor 301 high pressure gaseous working medium of discharging to enter in the second heat exchanger 304 condensation to heat through reversal valve 302, and liquefy working medium, this liquid refrigerant becomes gas-liquid mixed state to enter cylindrical shell 201 via the second pipe 203 of flash vessel 200 again through second section fluid element 306 throttling, the gas-liquid mixed state working medium entering cylindrical shell 201 is separated in cylindrical shell, operative liquid working medium after separation is flowed out by the first pipe 202 of flash vessel, the gas-liquid mixed state working medium of low temperature is become through first throttle element 305 throttling, enter First Heat Exchanger 303 again to evaporate, the working medium flashing to gaseous state in First Heat Exchanger 303 enters the air entry 3011 of compressor through reversal valve 302.In flash vessel 200, isolated gaseous working medium and operative liquid working medium derive through the 3rd pipe 204 and the 4th pipe 205 respectively, and are admitted to the gas supplementing opening 3013 of compressor.
In the present embodiment, flash vessel supplements gaseous working medium and liquid refrigerant to compressor, can when increasing compressor air-discharging amount, reduce row's temperature, thus, this heat-exchange system can use the working medium with high-critical temperature and high row's temperature characteristics as refrigerant, thus prepares high-temperature-hot-water easily.
Fig. 4 is another system composition schematic diagram of the heat-exchange system of the present embodiment.As shown in Figure 4, this heat-exchange system 400 can increase gas-liquid separator 401 etc. on the basis of the heat-exchange system 300 shown in Fig. 3.
Wherein, this gas-liquid separator 401 can be connected between the air entry 3011 of compressor 301 and reversal valve 302, thus, enter the air entry of compressor at gaseous working medium before, from this gaseous working medium, isolate liquid refrigerant further, make the gaseous working medium after separation enter the air entry of compressor, thus, prevent a large amount of liquid refrigerants from entering compressor from air entry and causing liquid hammer, to improve the security of this heat-exchange system.
As shown in Figure 4, this heat-exchange system 400 can also comprise magnetic valve 402,403 etc.In the present embodiment, magnetic valve 402,403 can be separately positioned on the 3rd pipe 204 and the 4th pipe 205 on the pipeline of compressor gas supplementing opening 3013.
In the present embodiment, magnetic valve 402, 403 can regulate the gaseous working medium of inflow compressor gas supplementing opening 3013 and the flow of liquid refrigerant, such as, this magnetic valve 402 is opened, and magnetic valve 403 cuts out, gaseous working medium can be only made to flow into gas supplementing opening 3013, this magnetic valve 402 cuts out, and magnetic valve 403 is opened, liquid refrigerant can be only made to flow into gas supplementing opening 3013, this magnetic valve 402 and magnetic valve 403 are opened simultaneously, gaseous working medium and liquid refrigerant can be made all to flow into gas supplementing opening 3013, and, by adjustment magnetic valve 402, the opening degree of 403, can regulate further and flow into the gaseous working medium of compressor gas supplementing opening 3013 and the flow of liquid refrigerant.
In the present embodiment, this heat-exchange system also comprises controller (scheming not shown), the temperature of its working medium can discharged according to exhaust outlet of compressor, and/or the heating capacity reached needed for this heat-exchange system, come opening and closing or the opening degree of Controlling solenoid valve 402,403, thereby, it is possible to as required, the amount infused of compressor and air compensation are suitably regulated.Such as, when compressor exhaust temperature is higher, such as 90-130 degree Celsius, particularly, such as 120 degrees Celsius, magnetic valve 402,403 can be made to open, for compressor gas supplementing opening supplements liquid refrigerant and gaseous working medium, and, exhaust port temperatures is higher, the degree that magnetic valve 403 can be made to open is larger, and/or makes the opening degree of magnetic valve 402 less, thus reduces delivery temperature; When delivery temperature is still high, magnetic valve 402 can be made to close, only supplement liquid refrigerant to reduce delivery temperature to gas supplementing opening; When delivery temperature is not high, and when the heating capacity reached needed for this heat-exchange system is larger, magnetic valve 402 can be made to open, magnetic valve 403 cuts out, only supplement gaseous working medium to increase the capacity of compressor, to improve the heating capacity of heat-exchange system to gas supplementing opening; When delivery temperature is not high, and when the heating capacity reached needed for heat-exchange system is less, all close to make magnetic valve 402,403.
In the present embodiment, for the opening and closing of Controlling solenoid valve 402,403 or the parameter such as the concrete delivery temperature of opening degree and/or heating capacity in controller, can decide according to factors such as the performance of compressor and actual demands, such as, for compressor or the different user demands of different performance, above-mentioned parameter can be different, thus, can control the amount infused to compressor and air compensation neatly, make under different application scenarios, this heat-exchange system can maintain good running status.In the present embodiment, arranging two magnetic valves 402,403 is only an example, and the present embodiment is not limited to this, also can magnetic valve 402 be only set, or only arranges 403, or, as shown in Figure 5, on the pipe 206 formed after the 3rd pipe 204 and the 4th pipe 205 converge, magnetic valve is set.
Fig. 5 is another system composition schematic diagram of the heat-exchange system of the present embodiment, as shown in Figure 5, this heat-exchange system 500 can on the basis of the heat-exchange system 400 shown in Fig. 4, magnetic valve 402,403 is replaced with the magnetic valve 404 be arranged on pipe 206, further, controller can also be had to control opening and closing or the opening degree of this magnetic valve 404.
In the present embodiment, as shown in Figure 5, gaseous working medium and liquid refrigerant can be supplemented to the gas supplementing opening of compressor, or the two does not supplement simultaneously.Such as, when compressor exhaust temperature is higher or this heat-exchange system need reach comparatively great heating capacity time, magnetic valve 404 can be made to open, thus liquid refrigerant and gaseous working medium are supplemented to the gas supplementing opening of compressor; When compressor exhaust temperature is not high, and this heat-exchange system do not need to reach yet comparatively great heating capacity time, magnetic valve 404 can be made to close.
In the present embodiment, flash vessel supplements gaseous working medium and liquid refrigerant to compressor, can when increasing compressor air-discharging amount, reduce row's temperature, thus, this heat-exchange system can use the working medium with high-critical temperature and high row's temperature characteristics as refrigerant, thus prepares high-temperature-hot-water easily; In addition, magnetic valve is set to the pipeline of the gas supplementing opening of compressor, thereby, it is possible to control the amount of compressor being supplemented to gaseous working medium and liquid refrigerant at the 3rd pipe of flash vessel and/or the 4th pipe; In addition, between the air entry and cross valve of compressor, be connected with gas-liquid separator, prevent a large amount of liquid refrigerants from entering compressor from air entry and causing liquid hammer, to improve the security of this heat-exchange system.
More than in conjunction with concrete embodiment to present application has been description, but it will be apparent to those skilled in the art that these descriptions are all exemplary, is not the restriction to the application's protection domain.Those skilled in the art can make various variants and modifications according to the spirit of the application and principle to the application, and these variants and modifications are also in the scope of the application.
Claims (8)
1. a flash vessel, comprising: cylindrical shell; Be arranged at the first pipe of described cylindrical shell, the second pipe and the 3rd pipe, wherein, described first pipe is used for the working medium of gas-liquid mixed state being imported in described cylindrical shell or by the liquid refrigerant in described cylindrical shell derives, described second pipe is used for being derived by the liquid refrigerant in described cylindrical shell or importing in described cylindrical shell by the working medium of gas-liquid mixed state, and described 3rd pipe is used for the gaseous working medium in described cylindrical shell to derive;
It is characterized in that, described flash vessel also comprises:
4th pipe, it is arranged at described cylindrical shell, for being derived by the liquid refrigerant in described cylindrical shell.
2. flash vessel as claimed in claim 1, is characterized in that,
Described working medium is difluoromethane (R32), or the mixing refrigerant containing more than 70% difluoromethane (R32).
3. flash vessel as claimed in claim 1, is characterized in that,
Described 4th pipe extends to the bottom of described cylindrical shell.
4. flash vessel as claimed in claim 1, is characterized in that,
Described 3rd pipe and described 4th pipe merge into a pipe in described cylindrical shell outside.
5. a heat-exchange system, comprising: compressor, and it has air entry, exhaust outlet and gas supplementing opening; Reversal valve, First Heat Exchanger, the second heat exchanger, first throttle element, and second section fluid element, wherein, the described air entry of described compressor is connected described First Heat Exchanger and described second heat exchanger with described exhaust outlet via described reversal valve;
It is characterized in that, described flash vessel also comprises the flash vessel according to any one of claim 1-4,
Wherein, the first pipe of described flash vessel is connected with described First Heat Exchanger via described first throttle element;
Second pipe of described flash vessel is connected with described second heat exchanger via described second section fluid element;
3rd pipe of described flash vessel is connected with the gas supplementing opening of described compressor with the 4th pipe.
6. heat-exchange system as claimed in claim 5, is characterized in that,
Described 3rd pipe and/or described 4th pipe are provided with magnetic valve to the pipeline of the described gas supplementing opening of described compressor.
7. heat-exchange system as claimed in claim 6, is characterized in that,
Described heat-exchange system also comprises controller, its heating capacity reached needed for the temperature of the working medium of the described exhaust outlet discharge from described compressor and/or described heat-exchange system, controls opening and closing or the opening degree of described magnetic valve.
8. heat-exchange system as claimed in claim 5, is characterized in that,
Gas-liquid separator is connected with between the described air entry of described compressor and described cross valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510626088.2A CN105202818A (en) | 2015-09-28 | 2015-09-28 | Flash vessel and heat exchange system with same |
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| CN201510626088.2A CN105202818A (en) | 2015-09-28 | 2015-09-28 | Flash vessel and heat exchange system with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546893A (en) * | 2016-02-26 | 2016-05-04 | 珠海格力电器股份有限公司 | Flash tank, compressor system and air conditioner |
| CN115978841A (en) * | 2022-12-29 | 2023-04-18 | 浙江中广电器集团股份有限公司 | A flash evaporator of a heat pump air conditioning system |
| CN116006436A (en) * | 2022-12-29 | 2023-04-25 | 浙江中广电器集团股份有限公司 | Compressor of heat pump air conditioning system |
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| CN101688696A (en) * | 2007-04-24 | 2010-03-31 | 开利公司 | Refrigerant vapor compression system and transcritical operation method |
| CN201053785Y (en) * | 2007-06-11 | 2008-04-30 | 广东美的电器股份有限公司 | Heat pump air conditioner |
| CN202521978U (en) * | 2012-04-27 | 2012-11-07 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioning system with same |
| CN103375953A (en) * | 2012-04-27 | 2013-10-30 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioning system with same |
| CN202869070U (en) * | 2012-11-08 | 2013-04-10 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104034100A (en) * | 2014-06-05 | 2014-09-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Flash evaporator and air conditioning system with the flash evaporator |
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| CN105546893A (en) * | 2016-02-26 | 2016-05-04 | 珠海格力电器股份有限公司 | Flash tank, compressor system and air conditioner |
| CN115978841A (en) * | 2022-12-29 | 2023-04-18 | 浙江中广电器集团股份有限公司 | A flash evaporator of a heat pump air conditioning system |
| CN116006436A (en) * | 2022-12-29 | 2023-04-25 | 浙江中广电器集团股份有限公司 | Compressor of heat pump air conditioning system |
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