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Improved variable frequency air conditioner

An inverter air conditioner, an improved technology, applied in the direction of mechanical equipment, fluid circulation arrangements, refrigeration components, etc., can solve the problems of small flow changes, unsatisfactory energy efficiency ratio, and unsatisfactory heating energy efficiency ratio. Thermal energy efficiency ratio, the effect of improving energy efficiency ratio

Active Publication Date: 2015-07-15
苏州恒兆空调节能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the inverter air conditioner uses the nozzle check valve as the cooling check valve device, which can effectively improve the cooling energy efficiency ratio of the inverter air conditioner, but at the same time, the heating energy efficiency ratio is not very ideal.
[0003] In the prior art, the adaptability of the nozzle check valve as a quantitative throttling element to the flow rate cannot meet the flow rate requirements of the variable frequency air conditioner, and can only be used for fixed frequency air conditioners with little change in flow rate; only electronic expansion valves or only electronic expansion valves are used. Capillary tubes and solenoid valves arranged in parallel or only solenoid valves and second nozzles arranged in parallel as variable flow throttling devices can heat and change flow, but the energy efficiency ratio is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown in , 2, an improved inverter air conditioner includes a compressor 1, a four-way valve 2, a condenser 3 and an evaporator 4, and the delivery pipeline connecting the condenser 3 and the evaporator 4 is arranged according to the cooling flow direction. A variable flow throttling device and a refrigeration check valve device, the conduction direction of the refrigeration check valve device points to the condenser 3, the refrigeration check valve device is close to the evaporator 4, and the refrigeration check valve is installed at a distance from the inlet of the evaporator in the cooling direction End 80cm, the cooling check valve device adopts the nozzle check valve 6, the variable flow throttling device adopts the electronic expansion valve 5, and the heating throttling is realized by adjusting the opening of the electronic expansion valve 5, the nozzle check valve 6 includes the valve body 11. The movable spool 13 and the fixed valve seat 12,...

Embodiment 2

[0043] Such as image 3 As shown, the rest is the same as that of Embodiment 1, except that three nozzle check valves 6 arranged in parallel are used as the three-way refrigeration check valve device and the electronic expansion valve 5 is used as the variable flow throttling device. Realize unexpected significant increase in APF value.

[0044] The following is a year-to-year year-to-year experiment on the energy efficiency ratio of an inverter air conditioner using three nozzle check valves 6 as a three-way refrigeration check valve device and one electronic expansion valve 5 as a variable flow throttling device according to national standards. The experimental data is tabulated as follows:

[0045]

[0046] It can be seen from the above experimental data that the APF value of the inverter air conditioner using the prior art is 4.797, while the APF values ​​obtained by using the technical solution of the present invention are 5.841, which is significantly improved.

Embodiment 3

[0048] Such as Figure 4 As shown, the rest is the same as that of Embodiment 1, except that the one-way valve 8 and the capillary tube 9 arranged in parallel are used as a one-way refrigeration check valve device and the electronic expansion valve 5 is used as a variable flow throttling device.

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Abstract

The invention discloses an improved variable frequency air conditioner. A refrigeration one-way valve device with a throttling function or a plurality of refrigeration one-way valve devices with a throttling function and in parallel arrangement is / are arranged on a position, close to an evaporator, of a conveying pipeline used for connecting a condenser with the evaporator; the conducting direction of the refrigeration one-way valve device(s) points to the condenser. The improved variable frequency air conditioner is characterized in that a variable flow throttling device is arranged on a position, close to the condenser, of a conveying pipeline used for connecting the refrigeration one-way valve device(s) with the condenser. According to the invention, the refrigeration one-way valve device(s) is / are arranged on one end close to the evaporator, so that the energy efficiency ratio of refrigeration of the variable frequency air conditioner can be effectively improved; a heating throttling element is arranged on one end close to the condenser, so that the energy efficiency ratio of heating of the variable frequency air conditioner can be effectively improved. The improved variable frequency air conditioner is capable of effectively improving the year-round energy efficiency ratio of the variable frequency air conditioner, and bringing an unexpected effect.

Description

technical field [0001] The invention belongs to the field of an improved inverter air conditioner. Background technique [0002] At present, the inverter air conditioner adopts the nozzle check valve as the cooling check valve device, which can effectively improve the cooling energy efficiency ratio of the inverter air conditioner, but at the same time, the heating energy efficiency ratio is not very ideal. [0003] In the prior art, the adaptability of the nozzle check valve as a quantitative throttling element to the flow rate cannot meet the flow rate requirements of the variable frequency air conditioner, and can only be used for fixed frequency air conditioners with little change in flow rate; only electronic expansion valves or only electronic expansion valves are used. Although the capillary tube and the electromagnetic valve arranged in parallel or only the electromagnetic valve and the second nozzle arranged in parallel can be used as the variable flow throttling de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/04F25B41/06F25B41/20F25B41/31
CPCF25B41/37F25B41/31F25B41/20
Inventor 赵军郭霞龄宁孜勤黄建华蒋文格王海涛
Owner 苏州恒兆空调节能科技有限公司
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