Heat pump

 

(57) Abstract:

The heat pump includes a compressor with a drive, the entrance to which is communicated with the atmosphere external environment and with a heated room with the ability to control costs inflowing air, and the output is connected with the vortex energoizmeritel flow, the outputs of which are connected as follows: chilled flow from the surrounding atmosphere, and heated stream with a heated location. One of the outputs (heated stream) equipped with a flow regulator, which allows you to change the parameters emerging from the vortex energoizmeritel air. Advantages of a heat pump is environmentally friendly, high efficiency and the combination of heating with its ventilation on exercise ventilation additional energy is not consumed. 1 Il.

The invention relates to the field of heating units, namely, air heating systems using heat energy for external low-grade heat source.

There are various air heating systems of buildings and similar heated air for process operations, such as drying.

Compliance with ventilation, received limited distribution.

One of the main reasons for this is the low heat capacity of air within the received air heating temperatures [to 1.005 kJ/(KGC)].

This circumstance led to the emergence of systems in which the air heating supplemented by a device operating on the other, the intermediate heat transfer fluids (refrigerants).

So well-known systems, steam - or water-heating, in which the air heating is provided by radiators.

With this in modern conditions of rising energy prices and stricter requirements for environmentally friendly heating systems become more and more widespread systems that implement the most efficient thermodynamic cycles, allowing the use of low-grade energy sources, such as wastewater and recycled water removed by the ventilation air, natural resources of heat in the form of Helio and geohistorical, water and air environment.

These devices include heat pumps, which due to input from the outside work transfer heat from the heat source with the lowest temperature to the heated object, for example, the room that has more than the pension heat pump installation, working on the low-boiling heat transfer-cooling, and absorption machines (see Averianov and other "Effective solar systems of a heat supply" //f N 12, 1989; U.S. Pat. RF N 2033584, IPC F 25 27/00, published. 20.04.95, bull. N 14; Bystrov C. P. "Reduction of energy consumption and metal" // f N 10, 1990).

However, being the most developed and effective, such systems have significant disadvantages: high demands on the tightness of the brine circuit, which apply environmentally harmful, and sometimes poisonous (e.g., ammonia) substances and, consequently, the greater complexity and high price; the temperature limitation of primary low-grade heat source if the temperature is below minus 10oC no benefits) of the above drawbacks of the heating system with heat pumps operating directly on the air, i.e., systems that implement an air-cooling cycles.

For example, the known air-contact heat pump, which when working on heating uses the butterfly effect, and consists of a source of high pressure, such as a compressor driven expansion machine-expander and heat exchanger. After compression in the compressor of this unit naturally the th air in the heat exchange apparatus is heated warmer atmospheric air, then the air is compressed to atmospheric pressure, resulting in its temperature increases. The heated air is used for heating (drying).

The described process is similarly implemented in turbonagrevatelejj-cooling unit with electric drive" according to the application of the RF N 94041525, IPC F 25 9/00; 29/00, publ. 27.11.96, bull. N 33.

A disadvantage of this device is its low efficiency, especially at low temperatures of atmospheric air, as in this case required a large degree of pressure increase in the compressor (above 1.5) and a corresponding reduction in efficiency, typical for machines running on gases of low density (pressure 1,5105PA), as well as increasing the weight and complexity of the device due to the need to ensure the strength and integrity at elevated pressure drops in the channels, the first heat exchanger.

The closest in technical essence and the achieved effect to the proposed device is a vortex heat pump (Piralishvili W. A. "the Vortex effect and its application in engineering" // materials of the V all-Union conference" Kuibyshev, KuAI, 1988, page 248) that contains the compressor, the output of which is connected to the potential of heat, and the output of the heated flow - through heat exchanger heat to the heated space, connected to the mixer connected to the input of the compressor.

The drawbacks of such eddy heat pump is its structural complexity, lack of effectiveness and large dimensions due to the presence of heat exchangers regenerative type, as well as limited functionality in terms of compatibility of the device with a ventilation system.

The technical problem solved by the invention is to eliminate said drawbacks, namely the simplification and cheapening of the heat pump while maintaining its thermal efficiency, and expanding functionality by adapting to different requirements and operating conditions and align with the ventilation of the smaller units of the device.

This technical problem is solved in that in the known heat pump that contains the compressor, the output of which is connected with the vortex energoizmeritel, outputs, heated and cooled flows which are equipped with heat exchangers, respectively, of the heat in the heated premises and supply nizkopotentsialnogo apparatus, incorporating the device of the heated exhaust flow in a heated room, and the cooled stream into the atmosphere. The mixer is equipped with devices air intake from the atmosphere and from the heated room. While the device of the fence or the channels connecting them with a mixer fitted with shut-off and control valves, vortex energonuclear may be provided with a device regulating the ratio of costs (and therefore temperature) heated and cooled flows, and the compressor control the degree of pressure increase and / or air flow.

The essence of the present invention is illustrated graphic materials: Fig.1 is a pneumatic diagram of an example of a specific implementation of the vortex heat pump. The heat pump includes a compressor 1, output 2 is connected with the vortex energoizmeritel 3, with the exit of heated air flow 4 and the output of the cooled air stream 5, the device of the heated exhaust stream 6 in room 7, the device of the cooled exhaust stream 8 into the atmosphere. The mixer 9, which is connected with the intake of atmospheric air device 10 and the air intake 11 of the heated room 7, which feature elements of the valves 12 and 13, and A temperature) heated and cooled flows, performed, for example, in the form of a pass gate or gate 14, is installed at the outlet of the heated stream 4.

The proposed device is as follows. Atmospheric air and the heated air space 7 is sucked through the intake devices 10 and 11 and passing through the elements of the valves 12 and 13, through which set the desired ratio of their expenditures is supplied to the mixer 9, and then input into the compressor 1. The air compressed in the compressor 1, the channel 2 is fed to the input of a vortex energoizmeritel 3, which is the separation of the cooled and heated air flows (is the effect Wound or Vortex effect). The cooled stream through the channel 5 and the exhaust device 8 is removed into the atmosphere, and heated flow through the outlet 4 is fed into a heated room 7 through the exhaust device 6. To achieve the adopted air temperatures and velocities of the air supplied to the exhaust device 6 may be made in the form of one or more air-to-air ejectors, passive medium which is air heated premises 7. The proposed device is as follows.

Air che is porn-control valves 12 and 13, the mixer 9, enters the compressor 1, which is a compression. The compressed air on channel 2, which can be equipped with a flow regulator 15, enters the vortex energonuclear 3, which implements the Vortex effect or the effect of the Wound, resulting in the separation of air into hot and cold streams. The output of the heated air stream 4 through the exhaust device 6, which provides an acceptable parameters (temperature, speed) through, for example, ejection, served in a heated room 7, and the cooled air flow through the channel 5 and the exhaust device 8 is discharged into the atmosphere.

It should be noted that the temperature of the inlet air into the compressor 1 may be different. It depends on what part is the air coming from the atmosphere. So, if released into the atmosphere [kg] air (cold flow), (where is the mass fraction of cooled air), then the same amount of air must enter from the atmosphere. The proportion of heated air, component (1-) circulates in the total mass of air heated premises 7.

When changing the ratio of the costs of the air shut-off and control valves 12 and 13 is changed, the air temperature at the input of the element 13 of the channel intake air from the heated space 7 at a constant total flow rate of air through the compressor 1 increases the proportion of atmospheric air, which when fully overlapping element 13 exceeds consumption, remove the cooled air in 1/ time. When this heating is accompanied by the predominance of the inflow of atmospheric air. This option is possible when the source of pressure outside the heated area. For example, in the case of partial loading of an industrial enterprise is unequally and often not amenable to deep regulation centralized compressor stations, resulting in excess compressed air is often treniruetsa, while implementation of the proposed heat pump can largely compensate for these losses, using a portion of the compression energy for heating of the buildings. On the contrary, when the throttling element valve 12 increases the proportion of air entering the compressor 1 from the heated room 7. Because the air flow through the compressor 1 remains unchanged, the flow of atmospheric air through the channel 10 is less than 1 or is missing, heat pump, heating a room 7, operates in the mode of ventilation, the intensity of which is based on the percentage of flow of the chilled air. This deficiency of air in the room 7 is compensated to combine efficient heating of the room, when the number of input more heat consumed in the work, with ventilation, with the possibility of regulation in a wide range from exhaust to intake. In this case, since the degree of expansion of the air in the vortex energoizmeritel almost corresponds to the degree of pressure increase in the compressor, the pressure of the heated and cooled air flows equal to the atmospheric and hydraulic losses are minimal. The device does not contain in its composition such costly and bulky items as regenerative heat exchangers, the role of which perform more nearly perfect efficiency (without hydraulic and thermal losses) plated heat exchangers, which in the proposed device are heated space 7 containing the air and the surrounding atmosphere.

Moreover, the costs of air needed to heat the room with the characteristic heat loss correlate with the norms of Building ventilation.

Thus, the proposed heat pump exceeds the known device on aggregate performance, including energy efficiency, environmental friendliness, simplicity of design, the possibility of the device are available and are well known and do not represent any kind of difficulty in manufacturing. The elements of the valves can be manual and automatic drive, the latter in the present application is not considered, because it is the object of "know-how" of the applicant.

1. Heat pump for space heating, including the compressor, the output of which is connected with the vortex energoizmeritel, the outputs of heated and cooled air flows which are equipped with heat exchangers respectively heat to the heated space and the supply of low-grade heat and through the mixer connected to the input of the compressor, characterized in that the heat exchangers are made in the form of heat and mass transfer devices, including devices of the heated exhaust flow in a heated room, and the cooled stream into the atmosphere, and a mixer fitted with devices air intake from the atmosphere and from the heated room, and the unit air intake or channels connecting them with a mixer, or mixer equipped with shut-off and control valves with the possibility of changing the ratio of expenditure flows of intake air from the atmosphere and from the heated premises.

2. Heat pump for space heating under item 1, characterized in that the output on the new pump for space heating under item 1, characterized in that the compressor is arranged to control the degree of compression in the air.

 

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