CN103471276A - Air-injection enthalpy-increasing air conditioning device - Google Patents
Air-injection enthalpy-increasing air conditioning device Download PDFInfo
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- CN103471276A CN103471276A CN201310450566XA CN201310450566A CN103471276A CN 103471276 A CN103471276 A CN 103471276A CN 201310450566X A CN201310450566X A CN 201310450566XA CN 201310450566 A CN201310450566 A CN 201310450566A CN 103471276 A CN103471276 A CN 103471276A
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Abstract
The invention discloses an air-injection enthalpy-increasing air conditioning device, which comprises a compressor, a four-way valve, a condenser, an evaporator, a gas-liquid separator, an economizer, a liquid storing device, as well as a refrigerating circulation loop and a heating circulation loop, which are formed by a first throttling valve, a second throttling valve, a first check valve, a second check valve, a third check valve and a fourth check valve respectively. In the air-injection enthalpy-increasing air conditioning device, only two throttling valves are arranged in each circulation loop and are less than the throttling valves in the prior art, so the pipeline structure is simplified, and the cost is reduced; besides that, the refrigerating circulation loop does not pass by the liquid storing device by setting the flowing direction of the check valves, so a coolant is not stored in the liquid storing device, the flow of the coolant in the refrigerating circulation loop is not reduced and the air conditioning device has a better refrigerating effect compared with the refrigerating circulation loop passing by the liquid storing device.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly a kind of air injection enthalpy-increasing type aircondition.
Background technology
Air injection enthalpy-increasing type aircondition generally comprises cross valve, compressor, condenser, evaporimeter, reservoir, economizer, choke valve, check valve etc.Use economizer, can improve refrigeration and the heating efficiency of aircondition, in order to realize refrigeration, to heat in circulation and all can use economizer, existing air injection enthalpy-increasing type aircondition has adopted the choke valve more than three, make the structure of aircondition more complicated, cost is higher; And existing air injection enthalpy-increasing type aircondition is all used reservoir when being freezed and heat, to reach the effect that stores refrigerant in pipeline, but, in process of refrigerastion, refrigerant is after reservoir, and a part can be stored in reservoir, flow when thereby the flow-rate ratio that makes to enter the refrigerant that carries out kind of refrigeration cycle in pipeline is not used reservoir is little, thereby the degree of supercooling of system reduces, and refrigerating capacity reduces, and refrigeration is bad.
In sum, how simplifying the structure of air injection enthalpy-increasing type aircondition, reduce costs, simultaneously, improve the refrigeration of aircondition, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of air injection enthalpy-increasing type aircondition, to simplify the structure of aircondition, reduce costs, improve the refrigeration of aircondition.
For achieving the above object, the invention provides following technical scheme:
A kind of air injection enthalpy-increasing type aircondition, comprise some or all refrigeration cycles that form in compressor, cross valve, condenser, evaporimeter, gas-liquid separator, economizer and reservoir and heat closed circuit;
Also comprise first throttle valve, the second choke valve, the first check valve, the second check valve, the 3rd check valve, the 4th check valve;
The import of described the first check valve is communicated with described condenser;
The outlet of described the 3rd check valve is communicated with described evaporimeter;
The outlet of described the 4th check valve is communicated with the import of described the first check valve, and the import of described the 4th check valve is communicated with the import of described the 3rd check valve;
The outlet of described the second check valve is communicated with the outlet of described the first check valve;
The two ends of described reservoir are communicated with the import of described the second check valve and the outlet of described the 3rd check valve respectively;
The two ends of described first throttle valve are communicated with the import of described the 3rd check valve and the main road outlet of described economizer respectively;
The two ends of described the second choke valve are communicated with the outlet of described the first check valve and the bypass import of described economizer respectively;
The main road import of described economizer is communicated with the outlet of described the first check valve;
The bypass outlet of described economizer is communicated with the intermediate injection mouth of described compressor.
Preferably, in above-mentioned air injection enthalpy-increasing type aircondition, the main road of described refrigeration cycle passes through successively: the air intake duct of the E port of the main road import of the D port of the blast pipe of compressor, cross valve, the C port of cross valve, condenser, the first check valve, economizer, the outlet of the main road of economizer, first throttle valve, the 3rd check valve, evaporimeter, cross valve, the S port of cross valve, gas-liquid separator, compressor.
Preferably, in above-mentioned air injection enthalpy-increasing type aircondition, the bypass of kind of refrigeration cycle passes through successively: the intermediate injection mouth of the bypass import of the D port of the blast pipe of compressor, cross valve, the C port of cross valve, condenser, the first check valve, the second choke valve, economizer, the outlet of the bypass of economizer, compressor.
Preferably, in above-mentioned air injection enthalpy-increasing type aircondition, the main road that heats circulation passes through successively: the air intake duct of the C port of the main road import of the D port of the blast pipe of compressor, cross valve, the E port of cross valve, evaporimeter, reservoir, the second check valve, economizer, the outlet of the main road of economizer, first throttle valve, the 4th check valve, condenser, cross valve, the S port of cross valve, gas-liquid separator, compressor.
Preferably, in above-mentioned air injection enthalpy-increasing type aircondition, the bypass that heats circulation passes through successively: the intermediate injection mouth of the bypass import of the D port of the blast pipe of compressor, cross valve, the E port of cross valve, evaporimeter, reservoir, the second check valve, the second choke valve, economizer, the outlet of the bypass of economizer, compressor.
Preferably, in above-mentioned air injection enthalpy-increasing type aircondition, it is characterized in that, described first throttle valve and described the second choke valve are electric expansion valve or heating power expansion valve.
Compared with prior art, the invention has the beneficial effects as follows:
In air injection enthalpy-increasing type aircondition provided by the invention, by first throttle valve, the second choke valve and four check valves, compressor, cross valve, condenser, evaporimeter, gas-liquid separator, economizer and reservoir are coupled together, form the aircondition that includes refrigeration cycle and heat closed circuit; Can find out to only have two choke valves in each closed circuit, fewer than choke valve quantity of the prior art, not only simplify pipeline structure, and reduced cost; In addition, by the flow direction of check valve is set, refrigeration cycle is without reservoir, and refrigerant can not be stored in reservoir, and the cold medium flux in refrigeration cycle does not reduce, than the good refrigeration effect of the refrigeration cycle through reservoir.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or scheme of the prior art, below will accompanying drawing that describe required use in embodiment or prior art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The syndeton schematic diagram of a kind of air injection enthalpy-increasing type aircondition that Fig. 1 provides for the embodiment of the present invention;
The circulation theory figure of the refrigeration cycle of a kind of air injection enthalpy-increasing type aircondition that Fig. 2 provides for the embodiment of the present invention;
The circulation theory figure that heats closed circuit of a kind of air injection enthalpy-increasing type aircondition that Fig. 3 provides for the embodiment of the present invention.
In above-mentioned Fig. 1-Fig. 3,1 is that compressor, 2 is that cross valve, 3 is that condenser, 4 is that evaporimeter, 5 is that gas-liquid separator, 6 is that reservoir, 7 is that economizer, 8 is that first throttle valve, 9 is that the second choke valve, 10 is that the first check valve, 11 is that the second check valve, 12 is that the 3rd check valve, 13 is the 4th check valve;
Wherein, 101 exhaust outlets that are compressor, 102 for the air entry of compressor, 103 be the intermediate injection mouth of compressor;
The bypass that the main road outlet, 703 that the 701 main road imports, 702 that are economizer are economizer is economizer for the bypass import of economizer, 704 exports.
The specific embodiment
The invention provides a kind of air injection enthalpy-increasing type aircondition, simplified the structure of air injection enthalpy-increasing type aircondition, reduced cost, simultaneously, improved the refrigeration of aircondition.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on embodiments of the invention, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope of protection of the invention.
Please refer to Fig. 1, the syndeton schematic diagram of a kind of air injection enthalpy-increasing type aircondition that Fig. 1 provides for the embodiment of the present invention; The circulation theory figure of the refrigeration cycle of a kind of air injection enthalpy-increasing type aircondition that Fig. 2 provides for the embodiment of the present invention; The circulation theory figure that heats closed circuit of a kind of air injection enthalpy-increasing type aircondition that Fig. 3 provides for the embodiment of the present invention.
The embodiment of the present invention provides a kind of air injection enthalpy-increasing type aircondition, comprises compressor 1, cross valve 2, condenser 3, evaporimeter 4, gas-liquid separator 5, economizer 7, reservoir 6, first throttle valve 8.The second choke valve 9, the first check valve 10, the second check valve 11, the 3rd check valve 12 and the 4th check valve 13.Some devices wherein interconnect and are combined to form refrigeration cycle and heat closed circuit, and refrigeration cycle comprises main road and bypass, heats closed circuit and comprises equally main road and bypass.Below will introduce the connection between each device, as shown in Figure 1: the blast pipe 101 of compressor 1 is communicated with the D port of cross valve 2, the two ends of condenser 3 are communicated with the C port of cross valve 2 and the import of the first check valve 10 respectively, the two ends of gas-liquid separator 5 are connected with the S port of cross valve 2 and the air intake duct 102 of compressor 1 respectively, the two ends of evaporimeter 4 are communicated with the E port of cross valve 2 and the outlet of the 3rd check valve 12 respectively, the outlet of the 4th check valve 13 is communicated with the import of the first check valve 10, the import of the 4th check valve 13 is communicated with the import of the 3rd check valve 12, the outlet of the second check valve 11 is communicated with the outlet of the first check valve 10, the two ends of reservoir 6 are communicated with the import of the second check valve 11 and the outlet of the 3rd check valve 12 respectively, the two ends of first throttle valve 8 are communicated with the import of the 3rd check valve 12 and the main road outlet 702 of economizer 7 respectively, the two ends of the second choke valve 9 are communicated with the outlet of the first check valve 10 and the bypass import 703 of economizer 7 respectively, the main road import 701 of economizer 7 is communicated with the outlet of the first check valve 10, the bypass outlet 704 of economizer 7 is communicated with the intermediate injection mouth 103 of compressor 1.
In above-mentioned air injection enthalpy-increasing type aircondition, because the quantity of the choke valve adopted only has 9 two, first throttle valve 8 and the second choke valve, quantity than choke valve of the prior art is few, therefore, simplified the pipeline be connected with choke valve, and the cost of choke valve is higher in the market, reduce the quantity of choke valve, reduced on the whole the cost of air injection enthalpy-increasing type aircondition; And, in refrigeration cycle, by by four check valve settings in place, and the circulating direction that check valve is set, realize in refrigeration cycle, without reservoir 6, thereby, refrigerant in refrigeration cycle can not reduced, compare with the refrigeration cycle through reservoir, the refrigeration of refrigeration cycle of the present invention is better.
In the present embodiment, main road to kind of refrigeration cycle is further optimized, as shown in Figure 2, the loop direction that in figure, arrow points is refrigerant, the main road of refrigeration cycle is connected with in turn according to loop direction: the air intake duct 102 of the E port of the main road import 701 of the C port of the blast pipe 101 of compressor 1, the D port of cross valve 2, cross valve 2, condenser 3, the first check valve 10, economizer 7, the main road of economizer 7 outlet 702, first throttle valve 8, the 3rd check valve 12, evaporimeter 4, cross valve 2, the S port of cross valve 2, gas-liquid separator 5, compressor 1.The operation principle of the main road of refrigeration cycle is: refrigerant is collapsed into high temperature and high pressure gas through compressor 1, enter condenser 3 through cross valve 2, refrigerant heat release in condenser 3 becomes high-pressure sub-cooled liquid, then enter the main road of economizer 7 through the first check valve 10, refrigerant in economizer 7 main roads is further cooling by the refrigerant in the bypass of economizer 7, degree of supercooling increases, refrigerant becomes low temperature two-phase state through first throttle valve 8 reducing pressure by regulating flows, then enter evaporimeter 4 heat absorptions through the 3rd check valve 12 and become low area overheat gas, enter gas-liquid separator 5 through cross valve 2 afterwards and carry out gas-liquid separation, last low-pressure gas is got back to compressor 1, complete the main road circulation of a refrigeration cycle, and continuation next round main road circulation.
In the present embodiment, bypass to refrigeration cycle is optimized, as shown in Figure 2, the bypass of refrigeration cycle is connected with in turn according to loop direction: the intermediate injection mouth 103 of the bypass import 703 of the C port of the blast pipe 101 of compressor 1, the D port of cross valve 2, cross valve 2, condenser 3, the first check valve 10, the second choke valve 9, economizer 7, the bypass of economizer 7 outlet 704, compressor 1.The operation principle of the bypass of refrigeration cycle is: refrigerant is collapsed into high temperature and high pressure gas through compressor 1, enter condenser 3 through cross valve 2, in condenser 3, refrigerant carries out heat release and becomes high-pressure sub-cooled liquid, enter the second expansion valve 9 reducing pressure by regulating flows through the first check valve 10, refrigerant becomes middle pressure two-phase state, enter afterwards in the bypass of economizer 7, refrigerant absorbs the heat from the refrigerant in the main road of economizer 7 in the bypass of economizer 7, reach the purpose of further cooling main road refrigerant, after the bypass of economizer 7, refrigerant becomes middle pressure overheated gas, then from the intermediate injection mouth 103 of compressor 1, get back to compressor 1, complete the bypass circulation of a refrigeration cycle, and continuation next round bypass circulation.
Main road and bypass by above-mentioned refrigeration cycle can see, refrigerant is without reservoir 6, therefore, refrigerant in kind of refrigeration cycle can not be stored in reservoir 6, the flow and the degree of supercooling that have kept the refrigerant in the loop, compare with the refrigeration cycle through reservoir, improved refrigeration.
In the present embodiment, to heating closed circuit, be optimized, as shown in Figure 3, the main road that heats closed circuit is connected with in turn according to loop direction: the air intake duct 102 of the C port of the main road import 701 of the E port of the blast pipe 101 of compressor 1, the D port of cross valve 2, cross valve 2, evaporimeter 4, reservoir 6, the second check valve 11, economizer 7, the main road of economizer 7 outlet 702, first throttle valve 8, the 4th check valve 13, condenser 3, cross valve 2, the S port of cross valve 2, gas-liquid separator 5, compressor 1.The operation principle that heats the main road of closed circuit is: the electricity condition that obtains that switches cross valve 2, change the connection situation of each port, refrigerant becomes high pressure-temperature gas through compressor 1, entering evaporimeter 4 through cross valve 2 carries out heat release and becomes high-pressure sub-cooled liquid, through reservoir 6 and the second check valve 11, enter in the main road of economizer 7, refrigerant in main road is further cooling by the refrigerant in economizer 7 bypasses, degree of supercooling increases, refrigerant in economizer 7 main roads becomes low pressure two-phase state through the first expansion valve 8 reducing pressure by regulating flows, enter condenser 3 through the 4th check valve 13 afterwards, refrigerant evaporation endothermic in condenser 3 becomes low area overheat gas, then enter gas-liquid separator 5 through cross valve 2 and carry out gas-liquid separation, last low-pressure gas is got back to compressor 1, complete the main road circulation that once heats closed circuit, and the next circulation of continuation.
In the present embodiment, the bypass that heats closed circuit is optimized, as shown in Figure 3, the bypass that heats closed circuit is connected with in turn according to loop direction: the intermediate injection mouth 103 of the bypass import 703 of the E port of the blast pipe 101 of compressor 1, the D port of cross valve 2, cross valve 2, evaporimeter 4, reservoir 6, the second check valve 11, the second choke valve 9, economizer 7, the bypass of economizer 7 outlet 704, compressor 1.The operation principle that heats the bypass of closed circuit is: refrigerant becomes high pressure-temperature gas through compressor 1, entering evaporimeter 4 through cross valve 2 carries out heat release and becomes high-pressure sub-cooled liquid, pass through again reservoir 6 and the second check valve 11, refrigerant becomes middle pressure two-phase state by the reducing pressure by regulating flow of the second expansion valve 9, enter afterwards in the bypass of economizer 7, the heat that refrigerant absorbs refrigerant in main road in bypass becomes middle pressure overheated gas, then the intermediate injection mouth 103 of compressed machine 1 is got back in compressor 1, complete the bypass circulation that once heats closed circuit, and continuation next round bypass circulation.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. an air injection enthalpy-increasing type aircondition, comprise some or all refrigeration cycles that form in compressor (1), cross valve (2), condenser (3), evaporimeter (4), gas-liquid separator (5), economizer (7) and reservoir (6) and heat closed circuit;
It is characterized in that, also comprise first throttle valve (8), the second choke valve (9), the first check valve (10), the second check valve (11), the 3rd check valve (12), the 4th check valve (13);
The import of described the first check valve (10) is communicated with described condenser (3);
The outlet of described the 3rd check valve (12) is communicated with described evaporimeter (4);
The outlet of described the 4th check valve (13) is communicated with the import of described the first check valve (10), and the import of described the 4th check valve (13) is communicated with the import of described the 3rd check valve (12);
The outlet of described the second check valve (11) is communicated with the outlet of described the first check valve (10);
The two ends of described reservoir (6) are communicated with the import of described the second check valve (11) and the outlet of described the 3rd check valve (12) respectively;
The two ends of described first throttle valve (8) are communicated with the import of described the 3rd check valve (12) and the main road outlet (702) of described economizer (7) respectively;
The two ends of described the second choke valve (9) are communicated with the outlet of described the first check valve (10) and the bypass import (703) of described economizer (7) respectively;
The main road import (701) of described economizer (7) is communicated with the outlet of described the first check valve (10);
The bypass outlet (704) of described economizer (7) is communicated with the intermediate injection mouth (103) of described compressor (1).
2. air injection enthalpy-increasing type aircondition according to claim 1, it is characterized in that, the main road of described refrigeration cycle passes through successively: the blast pipe (101) of compressor (1), the D port of cross valve (2), the C port of cross valve (2), condenser (3), the first check valve (10), the main road import (701) of economizer (7), the main road outlet (702) of economizer (7), first throttle valve (8), the 3rd check valve (12), evaporimeter (4), the E port of cross valve (2), the S port of cross valve (2), gas-liquid separator (5), the air intake duct (102) of compressor (1).
3. air injection enthalpy-increasing type aircondition according to claim 1, it is characterized in that, the bypass of kind of refrigeration cycle passes through successively: the intermediate injection mouth (103) of the bypass import (703) of the C port of the blast pipe (101) of compressor (1), the D port of cross valve (2), cross valve (2), condenser (3), the first check valve (10), the second choke valve (9), economizer (7), the bypass of economizer (7) outlet (704), compressor (1).
4. air injection enthalpy-increasing type aircondition according to claim 1, it is characterized in that, the main road that heats circulation passes through successively: the blast pipe (101) of compressor (1), the D port of cross valve (2), the E port of cross valve (2), evaporimeter (4), reservoir (6), the second check valve (11), the main road import (701) of economizer (7), the main road outlet (702) of economizer (7), first throttle valve (8), the 4th check valve (13), condenser (3), the C port of cross valve (2), the S port of cross valve (2), gas-liquid separator (5), the air intake duct (102) of compressor (1).
5. air injection enthalpy-increasing type aircondition according to claim 1, it is characterized in that, the bypass that heats circulation passes through successively: the intermediate injection mouth (103) of the bypass import (703) of the E port of the blast pipe (101) of compressor (1), the D port of cross valve (2), cross valve (2), evaporimeter (4), reservoir (6), the second check valve (11), the second choke valve (9), economizer (7), the bypass of economizer (7) outlet (704), compressor (1).
6. according to the described air injection enthalpy-increasing type of claim 1-5 any one aircondition, it is characterized in that, described first throttle valve (8) and described the second choke valve (9) are electric expansion valve or heating power expansion valve.
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Cited By (9)
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| CN104296413A (en) * | 2014-09-24 | 2015-01-21 | 广东欧科空调制冷有限公司 | Variable frequency low-temperature strong heat air conditioner system |
| CN104613665A (en) * | 2015-02-02 | 2015-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioner system |
| CN105222401A (en) * | 2015-10-12 | 2016-01-06 | 珠海格力电器股份有限公司 | Coolant circulating system and there is its heat-pump apparatus |
| CN106152588A (en) * | 2015-04-21 | 2016-11-23 | 珠海格力电器股份有限公司 | Low-temp. spraying enthalpy unit |
| CN106763909A (en) * | 2017-01-21 | 2017-05-31 | 佛山市德天电器有限公司 | Three hole check valves and the frostless heat pump with three hole check valves |
| CN107842486A (en) * | 2017-11-24 | 2018-03-27 | 安徽美芝精密制造有限公司 | Compressor and there is its air-conditioning system |
| CN109386909A (en) * | 2018-10-22 | 2019-02-26 | 广东美的暖通设备有限公司 | Outdoor unit, method for controlling oil return and air conditioner |
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
| CN110425176A (en) * | 2019-07-30 | 2019-11-08 | 青岛科技大学 | The centrifugal compressor air supply system of gas bearing support |
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| CN106763909B (en) * | 2017-01-21 | 2023-04-18 | 佛山市德天电器有限公司 | Three-hole one-way valve and frostless heat pump system with three-hole one-way valve |
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| CN109386909A (en) * | 2018-10-22 | 2019-02-26 | 广东美的暖通设备有限公司 | Outdoor unit, method for controlling oil return and air conditioner |
| CN109386909B (en) * | 2018-10-22 | 2020-10-16 | 广东美的暖通设备有限公司 | Outdoor unit, oil return control method and air conditioner |
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
| CN110425176A (en) * | 2019-07-30 | 2019-11-08 | 青岛科技大学 | The centrifugal compressor air supply system of gas bearing support |
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| CN103471276B (en) | 2016-04-20 |
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