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A compressor exhaust pressure adjustment method and air conditioner

A technology for compressor exhaust and pressure regulation, which is applied in high-efficiency regulation technology, heating methods, mechanical equipment, etc., and can solve the problem of inability to detect, predict and adjust compressor exhaust pressure, and low detection accuracy of compressor exhaust pressure. , Affect the comfort and stability of the air conditioner, and achieve the effect of accurate and reliable exhaust pressure adjustment, high accuracy, and reducing the number of air conditioner shutdown protection.

Active Publication Date: 2022-06-28
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention designs a method for adjusting the exhaust pressure of a compressor and an air conditioner to overcome the low detection accuracy of the exhaust pressure of the compressor in the prior art, which is easy to misjudgment, and cannot detect and predict the exhaust pressure of the compressor. Judgment and adjustment, so that the air conditioner is likely to enter the shutdown protection state frequently, which affects the comfort and stability of the air conditioner.

Method used

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  • A compressor exhaust pressure adjustment method and air conditioner
  • A compressor exhaust pressure adjustment method and air conditioner
  • A compressor exhaust pressure adjustment method and air conditioner

Examples

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Comparison scheme
Effect test

Embodiment 1

[0078] like Figures 1 to 9 As shown, a method for adjusting the discharge pressure of a compressor includes the steps of

[0079] S1, detect the outdoor ambient temperature Ta and the actual temperature Tc' of the condenser coil, and correct the value of the actual temperature Tc' of the condenser coil according to the outdoor ambient temperature Ta to obtain the condenser coil temperature Tc;

[0080] S2, according to the relationship between the condenser coil temperature Tc and the coil temperature threshold, determine the operating frequency adjustment condition P1 of the compressor and the rotational speed adjustment condition V of the fan;

[0081] S3, determining the operating frequency adjustment condition P2 of the compressor according to the relationship between the air conditioner operating current Ic and the current threshold;

[0082] S4 , adjust the operating frequency of the compressor and the rotational speed of the blower according to the adjustment conditio...

Embodiment 2

[0158] The present application also provides an air conditioner, which adopts the above-mentioned compressor exhaust pressure adjustment method to adjust the exhaust pressure of the compressor.

[0159] Specifically, as Figure 10 As shown, the air conditioner includes an indoor heat exchanger 10, an outdoor heat exchanger 7, a throttling device 9, a compressor 1 and a fan 5, wherein the outdoor heat exchanger 7, the compressor 1 and the fan 5 are located outdoors, and all The inlet of the compressor 1 is provided with an air return line 4, and the outlet is provided with an exhaust line 2. The air return line 4, the exhaust line 2, the outdoor heat exchanger 7 and the indoor heat exchanger 10 pass through a four-way reversing valve. 3 connection, the outdoor heat exchanger 7 is provided with an outer coil temperature sensor 6, and the outer coil temperature sensor 6 is used to measure the condensation of the outdoor heat exchanger 7 (ie, the condenser under high temperature r...

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Abstract

The invention provides a method for adjusting the discharge pressure of a compressor and an air conditioner, comprising steps: S1, detecting the outdoor ambient temperature Ta and the actual temperature Tc' of the condenser coil, and adjusting the actual temperature of the condenser coil according to the outdoor ambient temperature Ta The value of Tc' is corrected to obtain the condenser coil temperature Tc; S2, according to the relationship between the condenser coil temperature Tc and the coil temperature threshold, determine the adjustment of the operating frequency of the compressor P1 and the adjustment of the fan speed V; S3 , according to the relationship between the air conditioner operating current Ic and the current threshold to determine the adjustment of the operating frequency of the compressor P2; S4, according to the adjustment of the operating frequency of the compressor P1, P2 and the adjustment of the fan speed The rotation speed of the fan is adjusted, and the method for adjusting the discharge pressure of the compressor and the air conditioner described in the present invention have the advantages of high detection accuracy, can effectively reduce the number of shutdown protections of the air conditioner, and improve the operation stability and comfort of the air conditioner.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, to a method for adjusting the exhaust pressure of a compressor and an air conditioner. Background technique [0002] With the continuous updating and upgrading of air-conditioning products, consumers have higher and higher requirements for comfort and stability of air-conditioning products. Generally, after the air conditioner starts running, with the continuous operation of the compressor, the refrigerant forms a high pressure side and a low pressure side in different areas of the refrigerant pipeline. Usually, the pressure on the high pressure side needs to be controlled within a reasonable range to ensure the stability of the air conditioner. operation to avoid potential safety hazards due to excessive pressure. [0003] Especially under high temperature conditions, the refrigeration load of the air conditioner is large, and the compressor usually runs at t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/74F24F11/86F24F11/88F24F110/12F24F140/20
CPCF24F11/30F24F11/64F24F11/74F24F11/86F24F11/88F24F2110/12F24F2140/20Y02B30/70
Inventor 邓赛峰刘合心苏闯陈华
Owner NINGBO AUX ELECTRIC
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