RU2564225C1 - Wall split air conditioner - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: wall split air conditioner has a binary compressor consisting of an electric motor with a shaft and mechanical transmissions installed on its ends in the form of crankshafts, a piston compressor and a pneumatic actuator with a possibility of operation in anti-phase mode, and bypass valve system which is implemented in the form of cylindrical housing electric motor installed on a shaft with the bypass branch pipes rowed on its surface and along the longitudinal axis, one of end branch pipes is interconnected with the heating air heat exchanger, another end one - with the cooling air heat exchanger, and the middle branch pipe is interconnected with the pneumatic actuator. On the electric motor shaft the bushing is installed with a possibility of rotation which has cross grooves arranged symmetrically with reference to the longitudinal axis of the bushing and shifted with reference to each other with a possibility of bypass of working reagent for providing of operation of the piston compressor and the pneumatic actuator in anti-phase mode.

EFFECT: consumption decrease and design simplification.

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Description

The invention relates to a technology for converting thermal energy and can be used in the development of heat pumps, refrigerators and heat transformers.

A device is known for changing the room temperature, comprising an air turbine with an inlet and outlet located in the room, connected by a shaft to a power consumer, high and low pressure air lines, a high pressure air source with pressure reducing valve and an ejector (see RF patent No. 2365827. Cl F24D 15/04).

Also known is a room heating system containing main cooling and heating pipelines connected to air heat exchangers, a valve for adjusting the pressure of the working reagent (see RF patent No. 2121114, class F24D 15/04, A24D 3/18. 1998 is a prototype).

Common disadvantages of the known devices are the design complexity and a sharp drop in the pressure of the working reagent due to a change in the aggregate state of the working reagent during the transition from one heat exchanger (heater) to another cooling heat exchanger through a pressure control valve, which leads to large and irreplaceable energy consumption attributable to the compressor.

The technical result is to reduce energy consumption and simplify the design.

The technical result is achieved by the fact that the split system, which includes main pipelines with air heat exchangers for cooling and heating, a valve for adjusting the pressure of the working reagent, according to the invention has a binary compressor consisting of an electric motor with a shaft and mechanical gears located at its ends in the form of crankshafts, piston compressor and air motor with a bypass valve system, while the piston compressor and air motor are interconnected by means of mechanical Ah with the ability to work in antiphase mode, and the bypass valve system is made in the form of a cylindrical housing rigidly mounted on the electric motor shaft with bypass pipes located in a row and along the longitudinal axis, one of the extreme pipes is connected through a main pipeline with an air heating heat exchanger, the other the last - through the valve for adjusting the pressure of the working reagent and the main pipeline - with an air cooling heat exchanger, and the middle pipe is connected from the strips the cylinder of the air motor, while inside the housing on the motor shaft rotatably there is a sleeve that performs the function of a bypass valve, which has transverse grooves placed symmetrically and offset to each other relative to the longitudinal axis of the sleeve with the possibility of bypassing the working reagent in the middle pipe to ensure the operation of the piston compressor and air motor in antiphase mode.

The novelty of the proposed proposal lies in the fact that due to the presence of a binary compressor, made in the form of a combination of reciprocating piston compressors and an air motor and a system of bypass valves, energy costs are reduced.

According to the scientific, technical and patent literature, no technical solution was found that was similar to the claimed one, having a technical result that had not previously been achieved by known means, which allows one to judge the inventive step of the claimed proposal.

The proposed split system is efficient and can be used in the development of units for cooling and heating of premises, which meets the criterion of "industrial applicability".

The invention is illustrated by drawings, where in Fig. 1 shows a diagram of a split system; in fig. 2 shows a diagram of a split system operating in antiphase mode relative to the split system shown in Fig. one; in fig. 3 shows a cross section of a housing with a sleeve, view AA.

The split system contains main pipelines 1 and 2 with air heat exchangers 3 and 4 for cooling and heating, a valve 5 for adjusting the pressure of the working reagent, and a binary compressor, which consists of an electric motor 6 with a shaft 7 and mechanical gears located at its ends in the form of crankshafts 8 and 9, piston compressor 10 and air motor 11 with a bypass valve system. The piston compressor 10 and the air motor 11 are interconnected by means of mechanical gears - crankshafts 8 and 9 with the possibility of operating in antiphase mode. The valve bypass system is made in the form of a cylindrical housing 12 rigidly mounted on the shaft 7 of the electric motor 9 with bypass pipes 13, 14 and 15 located on its surface in a row and along its longitudinal axis. The extreme pipe 13 is in communication with the heating air heat exchanger 3 through the main pipe 1, and the other extreme pipe 15 through the valve 5 for adjusting the pressure of the working reagent and the main pipe 2 is connected to the air cooling heat exchanger 4. The middle pipe 14 is connected to the cylinder cavity of the air motor 11. Inside the housing 12, on the shaft 7 of the electric motor 6, there is a rotatable sleeve 16 that rotates as a bypass valve, which has transverse grooves 17 and 18 placed symmetrically and offset to each other relative to the longitudinal axis of the sleeve 16 sec the ability to bypass the working reagent in the middle pipe 15 to ensure the operation of the piston compressor and air motor in antiphase mode.

The split system works as follows.

A working reagent — gaseous freon under low pressure of 3-5 atm and a temperature of 10–20 ° C — enters the piston compressor 10 through the main pipeline 1 from the air heat exchanger 3 (evaporator). The compressor 10 by means of a piston compresses the freon to a pressure of 15-25 atm, as a result of which the freon liquefies, generating heat, heats up to 70-90 ° C and enters another air heat exchanger 4 (condenser), from which it enters the pipe 13 under high pressure. At this moment, the groove 17 of the sleeve 16 is located opposite the nozzles 13 and 14 (Fig. 1), providing the freon bypass from the nozzle 13 to the nozzle 14 due to the space formed by the housing wall and the groove 17, then the freon enters the cylinder of the air motor 11, moving its piston which through the stem and the mechanic The transmission 9 makes the sleeve 16 rotate, moving the groove 18, and when it is installed opposite the nozzles 14 and 15 (Fig. 2), the piston of the air motor 11 moves back due to the energy of the mechanical transmission and compressed gas, displaces freon from its cylinder, which, cooling down, enters the nozzle 14 and, due to the space formed by the wall of the housing and the groove 18, passes the freon into the nozzle 15. Next, the freon passes through the pressure control valve 5 and enters the air-heat exchanger in a gas-liquid state with low pressure to 3, where it begins to boil and evaporate. At this time, the piston of the compressor 10, displacing freon, is in the upper position. When the freon enters from the main pipeline 1 into the piston compressor 10, the piston begins to compress the freon, and the process repeats.

Thus, in comparison with the classical split system, the proposed one significantly reduces energy costs through the use of a binary compressor, since energy is returned from the air motor through the crankshaft to the compressor piston, which allows you to compensate for the energy costs for pumping the working pressure in the air heat exchanger 4 (condenser) and leads to a decrease in energy consumption by 3-4 times.

Claims (1)

Split system, including main pipelines with air heat exchangers for cooling and heating, a valve for adjusting the pressure of the working reagent, characterized in that it has a binary compressor consisting of an electric motor with a shaft and mechanical gears located at its ends in the form of crankshafts, a reciprocating compressor and an air motor with by-pass valve system, while the piston compressor and air motor are interconnected by means of mechanical gears with the ability to work in antiphase mode press, and the bypass valve system is made in the form of a cylindrical housing rigidly mounted on the motor shaft with bypass pipes located on its surface in a row and along the longitudinal axis, one of the extreme pipes is communicated through a main pipeline with an air heating heat exchanger, and the other one through a control valve pressure of the working reagent and the main pipeline - with an air cooling heat exchanger, and the middle pipe is in communication with the cavity of the cylinder of the air motor, while and a housing on the motor shaft is rotatably disposed performs the function of relief valve sleeve, which has transverse grooves arranged symmetrically and offset to each other relative to the longitudinal axis of the insert with the possibility to bypass the working reagent average pipe to operate the reciprocating compressor and an air motor in antiphase mode.

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