摘要:
A condenser (2), an electronic expansion valve (5), an evaporator (6), and a motorized suction throttle valve (8) are connected in series with a compressor. When a capacity is increased, the electronic expansion valve (5) is controlled to be in a throttling direction and the motorized suction throttle valve (8) is controlled to be in an unthrottling direction in association with the control of the electronic expansion valve (5), and when a capacity is decreased, the electronic expansion valve (5) is controlled to be in an unthrottling direction and the motorized suction throttle valve (8) is controlled to be in a throttling direction in association with the control of the electronic expansion valve (5). While a capacity control of a compressor by a throttle control is been carried out, such associated control is made between the electronic expansion valve (5) and the motorized suction throttle valve (8), realizing a fine temperature control in a refrigerating machine without hunting.
摘要:
An air conditioning system for multiple rooms, comprising: an outdoor unit (1) including a variable delivery compressor (2), a four way reversing valve (3) and an outdoor heat exchange unit (4a, 4b); and two main connecting pipes (17, 18) composed of a high pressure main pipe and a low pressure main pipe to connect between outdoors and indoors; characterized in that it further comprises: a distributive controller (19) which is connected to the main connecting pipes (17, 18) to divide them into a high pressure pipe (20), a low pressure pipe (21) and a medium pressure pipe (22) therein; a plurality of indoor units (6a, 6b, 6c) which include indoor heat exchangers (8a, 8b, 8c), respectively, which are one end connected to the medium pressure pipe (22) through electronic expansion valves (12a, 12b, 12c), respectively, and which are the other end selectively connected to either one of the high pressure pipe (20) and the low pressure pipe (21), respectively; detecting means for detecting either one of refrigerant temperatures and reftrigerant pressures; and control means for carrying out a predetermined control based on such detection.
摘要:
A condenser (2), an electronic expansion valve (5), an evaporator (6), and a motorized suction throttle valve (8) are connected in series with a compressor. When a capacity is increased, the electronic expansion valve (5) is controlled to be in a throttling direction and the motorized suction throttle valve (8) is controlled to be in an unthrottling direction in association with the control of the electronic expansion valve (5), and when a capacity is decreased, the electronic expansion valve (5) is controlled to be in an unthrottling direction and the motorized suction throttle valve (8) is controlled to be in a throttling direction in association with the control of the electronic expansion valve (5). While a capacity control of a compressor by a throttle control is been carried out, such associated control is made between the electronic expansion valve (5) and the motorized suction throttle valve (8), realizing a fine temperature control in a refrigerating machine without hunting.
摘要:
A cooling and heating concurrent operation type of mulitple refrigeration cycle comprises an outdoor unit (1) including a variable delivery type of compressor (2) and an outdoor heat exchanger (3); indoor units (5) including indoor heat exchangers (6a,6b,6c), respectively; triple connection pipes of a high pressure gas pipe (12), a high pressure liquid pipe (14) and a low pressure gas pipe (13), the triple connection pipes connecting between the outdoor unit and the indoor units; pressure detection means (20, 21) for detecting the intake pressure of the compressor (2) and the discharge pressure of the compressor; and calculation and control means (22) for comparing two detected values of the intake pressure and the discharge pressure of the compressor (2) with two set values of a set intake pressure and a set discharge pressure, and for making variable controls of the compression capabilitiy of the compressor (2) and the heat exchange capability of the outdoor heat exchanger (3) based on the respective deviation values between the respective detected values and the respective set values, which are obtained as the results of the comparison.
摘要:
A cooling and heating concurrent operation type of mulitple refrigeration cycle comprises an outdoor unit (1) including a variable delivery type of compressor (2) and an outdoor heat exchanger (3); indoor units (5) including indoor heat exchangers (6a,6b,6c), respectively; triple connection pipes of a high pressure gas pipe (12), a high pressure liquid pipe (14) and a low pressure gas pipe (13), the triple connection pipes connecting between the outdoor unit and the indoor units; pressure detection means (20, 21) for detecting the intake pressure of the compressor (2) and the discharge pressure of the compressor; and calculation and control means (22) for comparing two detected values of the intake pressure and the discharge pressure of the compressor (2) with two set values of a set intake pressure and a set discharge pressure, and for making variable controls of the compression capabilitiy of the compressor (2) and the heat exchange capability of the outdoor heat exchanger (3) based on the respective deviation values between the respective detected values and the respective set values, which are obtained as the results of the comparison.
摘要:
An air conditioning system for multiple rooms, comprising: an outdoor unit (1) including a variable delivery compressor (2), a four way reversing valve (3) and an outdoor heat exchange unit (4a, 4b); and two main connecting pipes (17, 18) composed of a high pressure main pipe and a low pressure main pipe to connect between outdoors and indoors; characterized in that it further comprises: a distributive controller (19) which is connected to the main connecting pipes (17, 18) to divide them into a high pressure pipe (20), a low pressure pipe (21) and a medium pressure pipe (22) therein; a plurality of indoor units (6a, 6b, 6c) which include indoor heat exchangers (8a, 8b, 8c), respectively, which are one end connected to the medium pressure pipe (22) through electronic expansion valves (12a, 12b, 12c), respectively, and which are the other end selectively connected to either one of the high pressure pipe (20) and the low pressure pipe (21), respectively; detecting means for detecting either one of refrigerant temperatures and reftrigerant pressures; and control means for carrying out a predetermined control based on such detection.
摘要:
A cooling and heating concurrent operation type of mulitple refrigeration cycle comprises an outdoor unit (1) including a variable delivery type of compressor (2) and an outdoor heat exchanger (3); indoor units (5) including indoor heat exchangers (6a,6b,6c), respectively; triple connection pipes of a high pressure gas pipe (12), a high pressure liquid pipe (14) and a low pressure gas pipe (13), the triple connection pipes connecting between the outdoor unit and the indoor units; pressure detection means (20, 21) for detecting the intake pressure of the compressor (2) and the discharge pressure of the compressor; and calculation and control means (22) for comparing two detected values of the intake pressure and the discharge pressure of the compressor (2) with two set values of a set intake pressure and a set discharge pressure, and for making variable controls of the compression capabilitiy of the compressor (2) and the heat exchange capability of the outdoor heat exchanger (3) based on the respective deviation values between the respective detected values and the respective set values, which are obtained as the results of the comparison.