The system of heat supply and cooling of stationary object

 

(57) Abstract:

The invention relates to a power system and is intended for systems to maintain the desired temperature inside the stationary objects. The system produces cold in summer and warm in winter. Generated in the summer, cold in the evaporator is used in a heat exchanger for cooling air supplied to the consumer. The heat load of the condenser is discharged through the heat exchanger when the regasification of liquefied natural gas from storage. In winter, generated in the condenser heat is used for heating the supply air supplied to the consumer. In the evaporator when it enters the heat removed from the object of air through the intermediate heat carrier. The use of the invention will allow to increase coefficient of performance of the machine due to more efficient removal of the heat of condensation of the refrigerant at the re-gasification of liquefied natural gas, and increase the likelihood of a system due to the possibility of liquefied natural gas in the heat exchanger heat-moisture treatment of the fresh air. 1 Il.

The invention relates to situations of interest.

A well-known system of heat supply and cooling, containing the refrigerating machine with condensers and evaporators, the first of which is connected to a forced-draft tower, and the second through brine line connected to the cooling devices of the object and conditioning, the system is designed for temperature control of the air (USSR author's certificate N 996808, CL F 25 B 29/00, F 25 C 3/02, 1983) [1].

The disadvantages of this scheme is the inability to put the system into operation using the refrigerating machine as a heat pump and a low value of probability of failure-free operation.

A well-known system of heat supply and cooling, containing the heat pump - cooling machine, air conditioning with heat exchanger heating and a spray chamber, a heat exchanger located on-line removal of air from the object and used in winter operation, the cooling tower associated with the condenser of the refrigerating machine, heat exchanger heating the air and the spray chamber of the Central air (the decision to grant a patent on the application N 96120037/06, CL F 25 B 30/00, 25.09.96) [2].

The disadvantages of this scheme are insufficient temperature range, which can podderjivayuschei result, which is obtained by carrying out the invention, is to increase the cooling coefficient cooling machine due to more efficient removal of the heat of condensation of the refrigerant and increase the value of probability of failure-free operation due to the possibility of inflow of liquefied natural gas in the heat exchanger for cooling the supply air.

To achieve this technical result, the system of heat supply and cooling of the stationary object contains the heat pump refrigerating machine comprising a compressor, condenser, evaporator and thermostatic expansion valve, connected in series with the capacitor through the pump, valves and piping parallel connected heat exchanger, the inlet of which is connected to the tank with liquefied natural gas, and the output with the pipeline. Pipeline liquefied natural gas to diesel generator, gasification and other objects. To the evaporator of the refrigeration machine, a heat pump with piping and valves attached to the heat exchanger heat-moisture treatment of the supply air to the evaporator by means of a pump, valves and piping connected to the heat exchanger, whic is unaproved, connecting the tank with liquefied natural gas with a heat exchanger heat-moisture treatment of the fresh air.

New in the application for the invention is a heat exchanger located parallel to the heat exchanger heat-moisture treatment of the supply air inlet pipe connected to the tank with liquefied natural gas, and the output from the pipeline through which liquefied natural gas is fed to the diesel generator, gasification and other objects, as well as the pipeline connecting the tank with liquefied natural gas with a heat exchanger heat-moisture treatment of the fresh air that allows to make a conclusion on the compliance of the claimed invention, the criterion of "novelty".

The use of the condensation heat of the refrigerant for re-gasification of liquefied natural gas by introducing additional heat exchanger in the line of exhaust heat of condensation is not detected from the current level of technology, which allows to conclude that the criterion of "inventive step".

The introduction of the system of heat supply and cooling a stationary object and a heat exchanger connected with the capacity of liquefied natural gas on the line of the heat exchanger, located on the line of the receipt of the fresh air and allows you to get a new property, which consists in increasing the refrigeration coefficient of the refrigeration machine by increasing its cooling capacity with more efficient removal of the heat of condensation due to the re-gasification of liquefied natural gas and increase the probability of failure-free operation of the system of heat supply and cooling due to the possibility of liquefied natural gas in the heat exchanger for cooling the supply air.

The drawing shows a system of heat supply and cooling of the stationary object.

The system of heat supply and cooling of the stationary object consists of chillers - heat pump 1, which includes a thermostatic expansion valve 2, a condenser 3, an evaporator 4, a compressor 5. The evaporator 4 is connected with a pump 6, the valves 7 and 8, the heat exchanger 9. To the condenser 3 through the pump 10 connected in parallel through valves 11, 12 of the heat exchanger exhaust heat of condensation 13 through valves 14, 15 of the heat exchanger heat-moisture treatment supply air 16. The heat exchanger 13 is also connected through the valve 17 to the tank with liquefied natural gas 18. The heat exchanger 16 is also connected through sad the 16 supply air fan 22 is served in the controlled object 23, and is removed by means of the exhaust fan 24. The pressurization of the vessel with liquefied natural gas 18 is carried out using a unit charge 25. Relativeley natural gas through valves 26 and 27 may be supplied to the diesel generator, gasification and other objects.

The system of heat supply and cooling of a stationary object with redundant cooling systems on the basis of liquefied natural gas is as follows.

In the summer refrigerating machine 1 produces cold in the evaporator 4, which is given to the intermediate coolant supplied by a pump 6 through the evaporator 4 and the valve 20 into the heat exchanger 16 (valve 7, 8, 14, 15, 28, the valves 26 and 27 are closed), where the cooling and dehumidify the supply air supplied by the fan 22 in the controlled object 23. The heated coolant from the heat exchanger 16 is supplied by a pump 6 through the valve 19 to the evaporator 4. Intermediate coolant from the condenser 3 by a pump 10 through the valve 12 is fed into the heat exchanger 13, where the exhaust heat of condensation and regasification of liquefied natural gas coming from the tank with liquefied natural gas 18, and the valves 14 and 15 are closed. Oh the NTA. The liquid refrigerant is throttled in the expansion valve 2 and flows into the evaporator 4, where it picks up heat from the intermediate brine and evaporated. From the evaporator 4, the refrigerant is drawn by the compressor 5 and is applied to the capacitor 3. In case of failure of the refrigerating machine 1 liquid coolant from the system merges and liquefied natural gas is fed through the valve 21 into the heat exchanger 16, and the valve 17, the valve 14, 15, 19, 20 are closed. Relativeley natural gas through valves 26 and 27 (if necessary after additional regasification) is supplied to the diesel generator, gasification and other objects.

In the winter the heat from the condenser 3 of the heat pump 1 is given to the intermediate carrier, which with the help of the pump 10 through the valve 15 is fed into the heat exchanger 16 where it is heated supply air. When this valve 11, 12, 19, 20, 28, the valves 21, 27 are closed. Chilled coolant through the valve 14 enters the condenser. Heated in the heat exchanger 16, the air supply fan 22 is served in the controlled object 23, where the assimilation of excess heat. The heated air from the cooled object 23 is drawn by an exhaust fan 24 and through Tepl by a pump 6 is pumped through the evaporator 4 and the valve 7, in this case, valve 20 is closed, and enters the heat exchanger 9, where it is heated intermediate heat transfer medium. The heated coolant through the valve 8, the valve 19 is closed, a pump 6 to the evaporator 4, where it is cooled. The evaporated refrigerant is sucked from the evaporator 4 compressor 5, is compressed and fed into the condenser 3, which gives the heat of condensation of the intermediate heat carrier. From the condenser 3, roselius in thermostatic expansion valve 2, the refrigerant flows into the evaporator 4.

The above allows to conclude that the criterion of "industrial applicability".

Sources of information

1. USSR author's certificate N 996808, CL F 25 B 29/00, F 25 C 3/02, 1983

2. The decision to grant a patent on the application N 96120037/06, CL F 25 B 30/00, 25.09.96,

The system of heat supply and cooling a stationary object, comprising a heat pump refrigerating machine comprising a compressor, condenser, expansion valve and evaporator connected in series, and the capacitor through the pump, valves and piping connected to the heat exchanger heat-moisture treatment of the supply air, which is also connected through the and, valves and piping connected to the heat exchanger located on the line of air removal from an object, characterized in that it is provided with a capacity of liquefied natural gas, is connected to the heat exchanger located on the line removal of air from the object, and the additional heat exchanger and piping, and the additional heat exchanger is parallel to the heat exchanger heat-moisture treatment of the supply air inlet pipe connected to the tank with liquefied natural gas output from the pipeline, and additional pipeline completed connecting the tank with liquefied natural gas with a heat exchanger heat-moisture treatment of the fresh air.

 

Same patents:

The invention relates to a power system, in particular to the process of converting thermal energy of a relatively low temperature level of the thermal energy of high temperature level, and can be used for heat and cooling

Pump-heat // 2160417
The invention relates to constructions of pumps-generators, which can be used in Autonomous closed heating systems and heating the liquid in technological systems without combustion of fossil fuels

Rotary pump-heat // 2159901
The invention relates to constructions of pumps-generators, which can be used in Autonomous closed heating systems and heating the liquid in technological systems without combustion of fossil fuels

Heat pump // 2152568
The invention relates to refrigeration, particularly for units with screw compressors, and relates to heat pumps using oil flooded screw compressors

Heat pump // 2152567

The invention relates to the field of thermodynamics of moist air, more precisely, to receive water from atmospheric air and dehumidification of indoor air, and can be used for fresh water, including

The invention relates to the field of regenerative gas machines running on reverse Stirling cycle and used as heat pumps for systems of decentralized heat supply

Heat pump stirling // 2141608
The invention relates to the field of refrigeration gas regenerative machines running on reverse Stirling cycle and used as heat pumps for systems of decentralized heat supply

Cooling system // 2166156

The invention relates to installations for the production of heat or cold and is intended for use mainly in the transport air conditioning

The invention relates to the field of heating, air-conditioning, cooling and gas regenerative machines running on reverse Stirling cycle, is intended as a stand-alone thermohardening units for stationary and mobile objects with simultaneous production of heat and cold

The invention relates to a power system air-conditioning, cooling and gas regenerative machines running on reverse Stirling cycle

Heat pump // 2152567

Thermal power plant // 2143652
The invention relates to the field of energy and can be used when generating thermal, mechanical and ladanyi for the needs of domestic and industrial heating/cooling, and mechanical drive means including transport

The invention relates to a thermoelectric air-conditioning and refrigerating devices used, for example, passenger rail and other transport

The invention relates to heat engineering and can be used to produce thermal energy for heating of buildings and structures
Up!