Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for regulating capacity output of outdoor unit heat exchanger of multi-connected machine set

An outdoor unit heat exchanger and capacity output technology, which is applied in the direction of refrigerators, refrigeration components, lighting and heating equipment, etc., can solve the problems of shortening the service life of compressors, indoor temperature fluctuations, compressor damage, etc., to avoid damage, Simple control and low cost effects

Active Publication Date: 2012-11-28
GD MIDEA HEATING & VENTILATING EQUIP CO LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to avoid the above-mentioned problems, the control method of turning on and stopping the compressor of the fixed-frequency air conditioner when the load is running can be used to adjust the output of the outdoor unit capacity. However, in this way, the compressor needs to be started and stopped frequently, which can easily lead to damage, which greatly shortens the service life of the compressor; at the same time, it causes large fluctuations in indoor temperature and poor comfort

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for regulating capacity output of outdoor unit heat exchanger of multi-connected machine set
  • Device for regulating capacity output of outdoor unit heat exchanger of multi-connected machine set
  • Device for regulating capacity output of outdoor unit heat exchanger of multi-connected machine set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, a multi-unit outdoor unit, such as figure 1 , the outdoor unit heat exchanger 1 is provided with a parallel heat exchange pipeline 2, the two ends of the outdoor unit heat exchanger are respectively provided with a main pipe, one end of the parallel heat exchange pipeline is directly connected to the main pipe 31, and the other end is partly connected in parallel The pipelines are directly connected to the main pipe 32 , and the partially parallel heat exchange pipelines are first connected to the solenoid valve 41 and then connected to the main pipe 32 .

[0011] When the multi-unit unit is running normally, the control solenoid valve 41 is opened, and all the heat exchange pipes of the outdoor unit heat exchanger are output; when the multi-unit unit is running under a small load, the control solenoid valve 41 is closed, and the outdoor unit heat exchanger Only part of the pipeline output, its capacity output is lowered, so that the normal operation of th...

Embodiment 2

[0013] Embodiment 2, a multi-unit outdoor unit, such as image 3 , the outdoor unit heat exchanger 1 is provided with a parallel heat exchange pipeline 2, the two ends of the outdoor unit heat exchanger are respectively provided with a main pipe, one end of the parallel heat exchange pipeline is directly connected to the main pipe 31, and the other end is partly connected in parallel The pipelines are directly connected to the main pipe 32, and the partly parallel heat exchange pipelines are first connected to an inlet pipe 431 of the four-way reversing valve 43, and an outlet pipe 432 connected to the inlet pipe when the four-way reversing valve is powered off is then connected to The main pipe 32 and the other two outlet pipes 433 and 434 of the four-way reversing valve are connected through pipelines, and the connected pipelines are connected to the gas-liquid separator.

[0014] During normal operation, the four-way reversing valve is powered off, the inlet pipe 431 and th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for regulating capacity output of an outdoor unit heat exchanger of a multi-connected machine set. One end of a heat exchange pipeline in parallel connection with an outdoor unit heat exchanger is connected with a header pipe, and the other end of the heat exchange pipeline in partial parallel connection is directly connected to the header pipe; and the heat exchange pipeline in partial parallel connection is firstly connected with a fluid on-off device and then connected with the header pipe. By opening and closing the fluid on-off device, the heat exchange capacity output of the outdoor unit heat exchanger can be regulated, so that a multi-connected air conditioner with variable volume can adapt to the operation mode of small loads, the damage to a compressor due to the operation of small loads is avoided, and meanwhile, the problems of large indoor temperature fluctuation, poor comfort and short service life of the compressor caused by regulation by using a mode of starting and stopping the compressor can be avoided.

Description

technical field [0001] The invention relates to an adjustment device for the output capacity of the heat exchanger of the outdoor unit of the multi-unit unit, in particular to an adjustment device for adjusting the output capacity of the heat exchanger of the outdoor unit of the multi-unit unit so as to be suitable for small load operation. Background technique [0002] At present, in the field of refrigeration and air conditioning, the multi-connected air conditioners with variable capacity mainly include frequency conversion multi-connected air conditioners and digital multi-connected air conditioners. For variable frequency multi-connected air conditioners, in order to ensure the safe and reliable operation of the compressor, the operating frequency of the variable frequency compressor has a reasonable range, generally the lowest frequency is above 20Hz. When the system load is small, especially in low-temperature refrigeration and high-temperature heating conditions, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F25B41/00F25B41/04
Inventor 李宏伟许永锋梁伯启李洪生冯伟
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD