TH6568A - Improvements in heating and cooling systems - Google Patents

Abstract

The heating and / or cooling system combines many (42) standard refrigeration units. Each unit has at least one compressor (21, 114), an evaporator (12,116) and a condenser (16,117), a pump 41 and a condensate 14 with variable speed to circulate the water. Let flow through Evaporator condenser (12,116,16,117) each, which is connected in parallel across the water supply line (8,17) and the return line (18,22), the master controller (34) activates or stops the compressor ( 21,114) each, in accordance with load requirements, shut-off valve (24), valve (126), solenoid wing valve (137,138) block the water flowing through the evaporator. And / or condenser (12,116,16,117) of each stopped unit, and the effect of the pressure difference in the water supply line (8,17) and the return line (18,22) is recognized by the machine. Differential pressure 31, which sends a signal to the motor speed controller 32, which changes the pump's out put (41) and the condensate pump (14) to restore the pressure difference. Predetermined

Claims (7)

1. Heating and / or cooling systems will consist of more than one standard refrigeration unit, each of which will have at least one compressor, heat exchanger by an evaporator. And heat exchanger by condenser Fluid supply and return tubes located on each unit for the transfer of heat transfer fluid through a heat exchanger with an evaporator and a heat exchanger by a condenser. It connects the aforementioned fluid supply and return pipes to several separate hoses. Shipping and return Therefore, the heat exchanger is connected by the evaporator across several separate pipes in parallel, the pumps for the circulation of the heat transfer fluid through several separate pipes are provided by the aforementioned pumps. A pump regulator to change the flow of the aforementioned heat transfer fluid, and a valve associated with each unit in order to selectively shut down at least one of the supply lines and return the fluid. The system will comply with claim 1 and will have a pressure differential sensing device that will sense the pressure difference between multiple delivery and return pipelines. The above pump controls will respond to the aforementioned sensors. In order to change the flow of the aforementioned heat transfer fluid in order to maintain the pressure difference equal to the predetermined value, 3. The system corresponds to one or two of the claims and There is a master controller that controls the operating parameters of the system and controls standard units, pumps and valves, the aforementioned master controller receives a temperature sensing (temperetuer sensor) signal in several separate pipelines, delivery and return. Back, and the compressor power switch is activated and stopped for each compressor by a master controller that responds to the temperature of several separate pipes and the system is equipped with a valve actuation device. Of those units This will stop the operation to close the supply pipe and return the fluid. 4. The system corresponding to claim 3 within the master controller will activate or stop the selected compressor. By responding to the temperature of multiple pipes and thus all units are usually operated equally. 5. System corresponding to one of claim 1 to 4. The aforementioned valve is mounted on each unit so that only the fluid return hose can be closed selectively. 6. System corresponding to one of claim 1 to 5. Delivery and return tubes The heat exchanger is transferred through the heat exchanger by the evaporator. There will also be a second delivery and return hoses for fluid transfer. Condensed to the heat exchanger by the condenser of each unit, this second pipe is connected to the condenser manifold. Which are connected to each other so that the heat exchanger can be connected by the condenser in parallel. And the system will have a second pump for the flow of the aforementioned condensate, with the aforementioned second pump having a second pump to change the flow of the aforementioned condensate. And the apparatus will have a condenser valve so that at least one of the supply lines can be closed and a second return on each unit is optional. 7. System corresponding to claim 6 within the second pump control. As mentioned above, a condenser fluid pressure differential sensor is available in order to sense the pressure difference between the condensate flow pipelines and the condenser and the regulator. This second cylinder responds to the sensing machine to alter the flow of the condensed fluid. In order to maintain the pressure difference to a predetermined value, 8. A system corresponding to claim 6 or 7, the internal circulation of the aforementioned condensation fluid passes through the cooling tower (codling). tower) 9. Any system corresponding to Clause 1 to 8 within each of the aforementioned valve consists of: A Chevo-style valve with a movable valve head to seal the integral side of the valve in the fluid return pipe and to connect the piston to the valve head. And there will be a pressure line that will transfer fluid from several separate pipes to the piston as mentioned above. And there will be a closing device to selectively close the pressure line 1 0. The system corresponding to Clause 9 within the aforementioned closing device will consist of In-line solenoid valve 1 1.The system that complies with claim 10 within the aforementioned solenoid valve is Normally closed valve Which opens the pressure line when energized 1 2.Any system complying with Clause 10 or 11 within the peripheral regulator alternates the voltage supplied to the solenoid valve or its electric switch. One of the compressors in response to the presence or absence of a control signal for the activation of the compressor 1. 3. System corresponding to any one of Clause 1 or 12 Within the aforementioned pump control will consist of Motor speed controller In order to change the speed of the aforementioned pumps 1 4.A system that complies with claim 1 to 5 of the aforementioned condenser inside the heat exchanger is Air-cooled heat exchanger 1 5.The air conditioning system will consist of a standard refrigeration unit where at least each unit will have 1 compressor in the refrigeration cycle with evaporator, condenser, refrigeration water cycle with several separate pipes for delivery and return. Of water And a circulating pump, a motor speed controller for controlling the speed of a pump motor, a pressure differential sensing device to perceive the difference in water pressure between the supply lines and the return manifold. , A transmitter to deliver the differential signal to transmit a motor speed control signal that responds to the perceived and predetermined pressure differential, cooling water supply and return pipes. For each evaporator In order to drain water from the cooling water circuit to the heat exchanger in connection with the evaporator, the heat exchanger is connected to the cup in parallel, the most minimal valve in the pipe. One of each delivery and return pipe, and the actuator of the valve closes the valve. When at least 1 of the compressor has been stopped 1 6. The system corresponding to claim 15 within the aforementioned valve is The Chevo-type valve is activated by the water supplied from multiple separate pipes through the drain hose, and this valve is controlled by the solenoid valve in the discharge pipe 1. 7.A system complying with claim 15 or 16, one of the internal temperature-measuring devices measures the water temperature in multiple pipes separately, sends and returns, and the master controller will either activate or stop its operation. The compressor of the system responds to the measured temperature and performs a pre-programmed action. (pre-porgremmed instructions) in order to result in a sequential decrease or increase in temperature and at the same time stop or activate the actuator of the valve accordingly.