CN203083058U - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN203083058U
CN203083058U CN201320061915.4U CN201320061915U CN203083058U CN 203083058 U CN203083058 U CN 203083058U CN 201320061915 U CN201320061915 U CN 201320061915U CN 203083058 U CN203083058 U CN 203083058U
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CN
China
Prior art keywords
heat exchanger
air
bypass
refrigerant chamber
compressor
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Expired - Lifetime
Application number
CN201320061915.4U
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Chinese (zh)
Inventor
梁祥飞
郑波
吴迎文
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The utility model provides an air conditioner, including the main road circulation, the main road circulation includes the air supplement unit that the air supplement port of main road compressor and main road compressor is linked together, and the air conditioner still includes the auxiliary road circulation with the air supplement amount of main road circulation coupling in order to increase air supplement unit. According to the utility model discloses an air conditioner is through the circulation of coupling auxiliary road in main road circulation to increase air supplement unit's tonifying qi volume, improve main road compressor's tonifying qi when the second grade compression and increase enthalpy effect, improve low temperature heating capacity and heating coefficient of performance, improve the heating capacity and the heating performance of air conditioner promptly.

Description

Air-conditioner
Technical field
The utility model relates to field of air conditioning, in particular to a kind of air-conditioner.
Background technology
The air source heat pump heating capacity descends decay rapidly with outdoor environment temperature and can't meet consumers' demand.Existing adopt twin-stage or the compression of accurate secondary in the middle of tonifying Qi increase the enthalpy technology, comprise in the middle of the two-stage throttling in the middle of not exclusively cooling and the one-level throttling not exclusively cool cycles, with raising low-temperature heating capacity and COP, reduce compressor exhaust temperature simultaneously.But it is not high under the normal temperature operating mode that the prior art tonifying Qi increases the enthalpy ratio, causes tonifying Qi to increase enthalpy to improving the DeGrain of heating performance coefficient, and when outdoor environment temperature was very low, it is also limited that tonifying Qi increases enthalpy raising heating capacity.
The utility model content
The utility model aims to provide a kind of air-conditioner that improves heating capacity and heating performance.
The utility model provides a kind of air-conditioner, comprise the main road circulation, the main road circulation comprises that main road compressor and the making-up air device that is connected with the gas supplementing opening of main road compressor, air-conditioner also comprise and the bypass circulation of main road circulation coupling with the air compensation of increase making-up air device.
Further, making-up air device is an economizer; Economizer comprises first refrigerant chamber between the gas supplementing opening that is connected indoor heat exchanger and main road compressor, and is connected second refrigerant chamber between indoor heat exchanger and the outdoor heat exchanger; Connect between first refrigerant chamber and the indoor heat exchanger and be provided with the first throttle device so that the cold-producing medium after the throttling evaporates heat absorption and makes the cold-producing medium in second refrigerant chamber cold excessively in first refrigerant chamber; Connect between second refrigerant chamber and the outdoor heat exchanger and be provided with second throttling arrangement.
Further, the bypass circulation comprises the cold excessively once more bypass heat exchanger of cold-producing medium that makes in the inlet chamber external heat exchanger.
Further, the bypass heat exchanger comprises the 3rd refrigerant chamber and the 4th refrigerant chamber of mutual heat exchange; The bypass circulation also comprises the bypass throttling arrangement, and the series connection of bypass throttling arrangement is arranged between the port of export of the 3rd refrigerant chamber and indoor heat exchanger; The series connection of the 4th refrigerant chamber is arranged between second refrigerant chamber and second throttling arrangement.
Further, the bypass circulation also comprises the bypass compressor, and the series connection of bypass compressor is arranged between the arrival end of the 3rd refrigerant chamber and indoor heat exchanger.
Further, making-up air device is a flash evaporation; The liquid phase outlet that flash evaporation comprises the import that is connected with the port of export of indoor heat exchanger and the gaseous phase outlet that is connected with the gas supplementing opening of main road compressor and is connected with outdoor heat exchanger; Connect between the import of flash evaporation and the port of export of indoor heat exchanger and be provided with the 3rd throttling arrangement; Connect between liquid phase outlet and the outdoor heat exchanger and be provided with the 4th throttling arrangement.
Further, the bypass circulation comprises the bypass heat exchanger that improves the mass dryness fraction that enters the cold-producing medium in the flash evaporation.
Further, the bypass heat exchanger comprises the 5th refrigerant chamber and the 6th refrigerant chamber of mutual heat exchange; The bypass circulation comprises the bypass compressor, and the exhaust outlet of bypass compressor is connected with the entrance point of the 5th refrigerant chamber; The series connection of the 6th refrigerant chamber is arranged between the import of the 3rd throttling arrangement and flash evaporation.
Further, the port of export of the 5th refrigerant chamber is connected with the entrance point of the 4th throttling arrangement.
Further, the air inlet of bypass compressor is connected with the gas outlet of the gas-liquid separator of main road compressor.
According to air-conditioner of the present utility model, by coupling bypass circulation in the main road circulation, thereby the air compensation of increase making-up air device improves the main road compressor tonifying Qi when secondary compresses increasing enthalpy effect, improve low-temperature heating capacity and heating performance coefficient, promptly improve the heating capacity and the heating performance of air-conditioner.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the system schematic according to first embodiment of air-conditioner of the present utility model; And
Fig. 2 is the system schematic according to second embodiment of air-conditioner of the present utility model.
The specific embodiment
Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, according to air-conditioner of the present utility model, comprise the main road circulation, the main road circulation comprises that main road compressor 1 and the making-up air device 5 that is connected with the gas supplementing opening of main road compressor 1, air-conditioner also comprise and the bypass circulation of main road circulation coupling with the air compensation of increase making-up air device 5.The utility model is by coupling bypass circulation in the main road circulation, thereby increase the air compensation of making-up air device 5, improve the main road compressor tonifying Qi when secondary compresses increasing enthalpy effect, improve low-temperature heating capacity and heating performance coefficient, promptly improve the heating capacity and the heating performance of air-conditioner.
Particularly, shown in Figure 1 is the system schematic of first embodiment of air-conditioner of the present utility model, and in this embodiment, making-up air device 5 is an economizer; Economizer comprises two refrigerant chamber, and two refrigerant chamber all are connected with the port of export of indoor heat exchanger 3, and first refrigerant chamber (tonifying Qi chamber) is connected with the gas supplementing opening of main road compressor 1, and the outlet of second refrigerant chamber is connected with outdoor heat exchanger 2.The first throttle device 401 of between the import of first refrigerant chamber (tonifying Qi chamber) and indoor heat exchanger 3, connecting, thus make part of refrigerant evaporation gasification in the tonifying Qi chamber after by throttling, and the cold-producing medium of gasification enters the gas supplementing opening of main road compressor 1.First refrigerant chamber and the mutual heat exchange of second refrigerant chamber, because the evaporation heat absorption, thereby make the cold-producing medium in second refrigerant chamber cold excessively.
The bypass circulation comprises the cold excessively once more bypass heat exchanger 9 of cold-producing medium that makes in the inlet chamber external heat exchanger 2.Particularly, bypass heat exchanger 9 also comprises two refrigerant chamber (i.e. the 3rd refrigerant chamber and the 4th refrigerant chamber), heat exchange mutually between two refrigerant chamber, the 4th refrigerant chamber is connected between second refrigerant chamber and second throttling arrangement 402 of economizer, in this embodiment, bypass heat exchanger 9 is the bypass evaporimeter, the 3rd refrigerant chamber is connected in the bypass circulation, the cold-producing medium of bypass circulation evaporates heat absorption in the 3rd refrigerant chamber, thereby cold excessively once more to the cold-producing medium that enters from second refrigerant chamber the 4th refrigerant chamber.
405 series connection of bypass throttling arrangement are arranged between the port of export of the 3rd refrigerant chamber and indoor heat exchanger 3, and bypass compressor 10 is connected and constituted the bypass circulation between the arrival end that is arranged on the 3rd refrigerant chamber and indoor heat exchanger 3.
The operation principle of first embodiment of air-conditioner of the present utility model is as follows, and the exhaust of main road compressor 1 mixes after indoor heat exchanger 3(condenser with the exhaust of bypass compressor 10) after be divided into first branch road, second branch road and the 3rd branch road.The cold-producing medium of first branch road enter economizer crossed cold after again through bypass heat exchanger 9(bypass evaporimeter) by further cold excessively, then through the second throttling arrangement 402(main road electric expansion valve) the throttling step-down is after outdoor heat exchanger 2(evaporimeter) enter the low pressure air suction mouth of main road compressor 1.The cold-producing medium of second branch road (tonifying Qi road) is through first throttle device 401(tonifying Qi road electric expansion valve) enter the gas supplementing opening that the economizer heat absorption enters compressor 1 fully after the evaporation after the throttling step-down, and with after the refrigerant mixed that is compressed to for the first time intermediate pressure through main road compressor 1 again through being compressed to for the second time high pressure, finally discharge, form the main road circulation from exhaust outlet.The cold-producing medium of the 3rd branch road is through bypass throttling arrangement 405(bypass electric expansion valve) enter bypass heat exchanger 9(bypass evaporimeter after the throttling step-down) the heat absorption evaporation becomes refrigerant gas, enter the 10 compressed discharges of bypass compressor then and enter indoor heat exchanger 3(condenser) thus the bypass circulation formed.
Among the embodiment one of the utility model air-conditioner, the cold-producing medium of first branch road that comes out from indoor heat exchanger 3 is crossed cold back specific enthalpies twice by economizer and bypass heat exchanger 9 and is significantly reduced, thereby the import of outdoor heat exchanger 2 and the ratio enthalpy difference and the caloric receptivity of outlet cold-producing medium have been increased, outdoor heat exchanger 2 caloric receptivities increase, add the wasted work of the caloric receptivity of bypass circulation with bypass compressor 10, thereby cause indoor heat exchanger 3 condensation loads to increase, the temperature and the specific enthalpy of indoor heat exchanger 3 outlet cold-producing mediums are all raise, cause second branch road (tonifying Qi road) thus required refrigerant mass fluxes increases and has improved air compensation.Though the bypass compressor 10 extra wasted works of the utility model air-conditioner, thereby for main road circulation has increased degree of supercooling and air compensation has improved heating capacity, the heating performance coefficient of air-conditioner still is improved, and compressor exhaust temperature decreases.
Shown in Figure 2 is the system schematic of second embodiment of air-conditioner of the present utility model, and in this embodiment, making-up air device 5 is a flash evaporation; The liquid phase outlet that flash evaporation comprises the import that is connected with the port of export of indoor heat exchanger 3 and the gaseous phase outlet that is connected with the gas supplementing opening of main road compressor 1 and is connected with outdoor heat exchanger 2; Connect between the port of export of the import of flash evaporation and indoor heat exchanger 3 and be provided with the 3rd throttling arrangement 403, the cold-producing medium that enters flash evaporation enters gas-liquid separation in the flash evaporation after through the gasification of the 3rd throttling arrangement 403 throttling step-down part shwoots, the gaseous refrigerant of separating enters 1 tonifying Qi of main road compressor, liquid refrigerant is from liquid phase outlet inlet chamber external heat exchanger 2, series connection is provided with the 4th throttling arrangement 404 between liquid phase outlet and the outdoor heat exchanger 2, to the liquid refrigerant throttling of inlet chamber external heat exchanger 2.
The bypass circulation comprises the bypass heat exchanger 9 that improves the mass dryness fraction that enters the cold-producing medium in the flash evaporation.Particularly, bypass heat exchanger 9 comprises two refrigerant chamber of mutual heat exchange, i.e. the 5th refrigerant chamber and the 6th refrigerant chamber; The bypass circulation comprises bypass compressor 10, and the exhaust outlet of bypass compressor 10 is connected with the entrance point of the 5th refrigerant chamber; The series connection of the 6th refrigerant chamber is arranged between the import of the 3rd throttling arrangement 403 and flash evaporation, thereby to the part cold-producing medium heating and gasifying that enters flash evaporation after the throttling, the mass flow of gaseous refrigerant is increased, promptly improve the mass dryness fraction (total mass flow rate of the mass flow/cold-producing medium of gaseous refrigerant) that enters the cold-producing medium in the flash evaporation.
The port of export of the 5th refrigerant chamber is connected with the entrance point of the 4th throttling arrangement 404, and the refrigerant mixed that the cold-producing medium after promptly compressing through bypass compressor 10 exports with the flash evaporation liquid phase after the condensation in the 5th refrigerant chamber is after throttling inlet chamber external heat exchanger 2.The air inlet of bypass compressor 10 is connected with the gas outlet of the gas-liquid separator 6 of main road compressor 1, and promptly bypass compressor 10, bypass heat exchanger 9, the 4th throttling arrangement 404, outdoor heat exchanger 2, gas-liquid separator 6 are in turn connected to form the bypass circulation.
In this embodiment, the exhaust of main road compressor 1 is through indoor heat exchanger 3(condenser) after pass through the 3rd throttling arrangement 403(electric expansion valve of main road respectively), the 6th refrigerant chamber and the flash evaporation of bypass heat exchanger 9, saturated gas enters the gas supplementing opening of main road compressor 1 via the tonifying Qi branch road in flash evaporation, saturated liquid is through the 4th throttling arrangement 404(electric expansion valve of main road) after inlet chamber external heat exchanger 2(evaporimeter) heat absorption evaporation becomes gas and enters gas-liquid separator 6, enter the air entry of main road compressor 1 and bypass compressor 10 then respectively, the cold-producing medium of air entry that enters main road compressor 1 is finally discharged from exhaust outlet through compression for the second time after for the first time being compressed to intermediate pressure with after the refrigerant mixed of gas supplementing opening again, forms the main road circulation.Enter the compressed bypass heat exchanger 9(bypass condenser that enters of refrigerant gas of bypass compressor 10 air entries) mix with saturated liquid after the condensation from flash evaporation 5, and the 4th throttling arrangement 404 of shared main road, outdoor heat exchanger 2(evaporimeter) and gas-liquid separator 6, thereby the bypass circulation formed.
Among the embodiment two of the utility model refrigerating plant, thereby bypass compressor 10 has increased the refrigerant flow of outdoor heat exchanger 2 and has increased caloric receptivity, thereby and improved the air compensation that flash evaporation 5 inlet cold-producing medium mass dryness fractions have improved main road compressor 1 by bypass heat exchanger 9, the degree of superheat of compressing the initial state cold-producing medium second time of main road compressor 1 is significantly reduced, the ratio merit of compression reduces for the second time, final effect is that the heating capacity of refrigerating plant significantly improves, delivery temperature reduces, and the heating performance coefficient increases simultaneously.
In first embodiment of the present utility model and second embodiment, the structure of economizer 5, bypass heat exchanger 9 can be double-tube heat exchanger, plate type heat exchanger, also can be micro-channel heat exchanger and miniature case tube heat exchanger.
The main road compressor 1 of the utility model refrigerating plant can be the combination of the single-stage compressor of the accurate split-compressor of vortex, birotor twin-stage tonifying Qi increasing enthalpy compressor or two arbitrary forms, also can be the helical-lobe compressor or the centrifugal compressor of band tonifying Qi enthalpy-increasing function.The main road of the utility model air-conditioner and bypass throttling arrangement can be capillary, restriction sleeve, heating power expansion valve, electric expansion valve, restricting orifice or aforementioned any reasonable combination.Circulation of the main road of the utility model air-conditioner and bypass circulation can add parts such as the four-way change-over valve of necessity or simply improve to adapt to refrigeration, heat or to heat application scenario such as water.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to air-conditioner of the present utility model, by coupling bypass circulation in the main road circulation, thereby the air compensation of increase making-up air device improves the main road compressor tonifying Qi when secondary compresses increasing enthalpy effect, improve low-temperature heating capacity and heating performance coefficient, promptly improve the heating capacity and the heating performance of air-conditioner.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. an air-conditioner comprises the main road circulation, and described main road circulation comprises main road compressor (1) and the making-up air device (5) that is connected with the gas supplementing opening of described main road compressor (1), it is characterized in that,
Described air-conditioner also comprises and the bypass circulation of described main road circulation coupling with the air compensation that increases described making-up air device (5).
2. air-conditioner according to claim 1 is characterized in that,
Described making-up air device (5) is an economizer;
Described economizer comprises first refrigerant chamber between the gas supplementing opening that is connected indoor heat exchanger (3) and described main road compressor (1), and is connected second refrigerant chamber between described indoor heat exchanger (3) and the outdoor heat exchanger (2);
Connect between described first refrigerant chamber and the described indoor heat exchanger (3) and be provided with first throttle device (401) so that the cold-producing medium after the throttling evaporates heat absorption and makes the cold-producing medium in described second refrigerant chamber cold excessively in described first refrigerant chamber;
Connect between described second refrigerant chamber and the described outdoor heat exchanger (2) and be provided with second throttling arrangement (402).
3. air-conditioner according to claim 2 is characterized in that,
Described bypass circulation comprises makes the cold excessively once more bypass heat exchanger (9) of cold-producing medium that enters in the described outdoor heat exchanger (2).
4. air-conditioner according to claim 3 is characterized in that,
Described bypass heat exchanger (9) comprises the 3rd refrigerant chamber and the 4th refrigerant chamber of mutual heat exchange;
Described bypass circulation also comprises bypass throttling arrangement (405), and described bypass throttling arrangement (405) series connection is arranged between the port of export of described the 3rd refrigerant chamber and described indoor heat exchanger (3);
Described the 4th refrigerant chamber series connection is arranged between described second refrigerant chamber and described second throttling arrangement (402).
5. air-conditioner according to claim 4 is characterized in that,
Described bypass circulation also comprises bypass compressor (10), and described bypass compressor (10) series connection is arranged between the arrival end of described the 3rd refrigerant chamber and described indoor heat exchanger (3).
6. air-conditioner according to claim 1 is characterized in that,
Described making-up air device (5) is a flash evaporation;
The liquid phase outlet that described flash evaporation comprises the import that is connected with the port of export of indoor heat exchanger (3) and the gaseous phase outlet that is connected with the gas supplementing opening of described main road compressor (1) and is connected with outdoor heat exchanger (2);
Connect between the port of export of the import of described flash evaporation and described indoor heat exchanger (3) and be provided with the 3rd throttling arrangement (403);
Connect between the outlet of described liquid phase and the described outdoor heat exchanger (2) and be provided with the 4th throttling arrangement (404).
7. air-conditioner according to claim 6 is characterized in that,
Described bypass circulation comprises the bypass heat exchanger (9) that improves the mass dryness fraction that enters the cold-producing medium in the described flash evaporation.
8. air-conditioner according to claim 7 is characterized in that,
Described bypass heat exchanger (9) comprises the 5th refrigerant chamber and the 6th refrigerant chamber of mutual heat exchange;
Described bypass circulation comprises bypass compressor (10), and the exhaust outlet of described bypass compressor (10) is connected with the entrance point of described the 5th refrigerant chamber;
Described the 6th refrigerant chamber series connection is arranged between the import of described the 3rd throttling arrangement (403) and described flash evaporation.
9. air-conditioner according to claim 8 is characterized in that,
The port of export of described the 5th refrigerant chamber is connected with the entrance point of described the 4th throttling arrangement (404).
10. air-conditioner according to claim 9 is characterized in that,
The air inlet of described bypass compressor (10) is connected with the gas outlet of the gas-liquid separator of described main road compressor (1).
CN201320061915.4U 2013-02-01 2013-02-01 Air conditioner Expired - Lifetime CN203083058U (en)

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Application Number Priority Date Filing Date Title
CN201320061915.4U CN203083058U (en) 2013-02-01 2013-02-01 Air conditioner

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Application Number Priority Date Filing Date Title
CN201320061915.4U CN203083058U (en) 2013-02-01 2013-02-01 Air conditioner

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CN203083058U true CN203083058U (en) 2013-07-24

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CN201320061915.4U Expired - Lifetime CN203083058U (en) 2013-02-01 2013-02-01 Air conditioner

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968477A (en) * 2013-02-01 2014-08-06 珠海格力电器股份有限公司 Air conditioner
CN104110908A (en) * 2014-07-03 2014-10-22 珠海格力电器股份有限公司 Three-stage compression cascade circulation heat pump system and control method thereof
WO2021082331A1 (en) * 2019-10-28 2021-05-06 广东美的制冷设备有限公司 Air conditioner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968477A (en) * 2013-02-01 2014-08-06 珠海格力电器股份有限公司 Air conditioner
CN103968477B (en) * 2013-02-01 2017-04-12 珠海格力电器股份有限公司 Air conditioner
CN104110908A (en) * 2014-07-03 2014-10-22 珠海格力电器股份有限公司 Three-stage compression cascade circulation heat pump system and control method thereof
CN104110908B (en) * 2014-07-03 2016-08-31 珠海格力电器股份有限公司 Three-stage compression cascade circulation heat pump system and control method thereof
WO2021082331A1 (en) * 2019-10-28 2021-05-06 广东美的制冷设备有限公司 Air conditioner

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Granted publication date: 20130724

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