KR100642989B1 - aid heater for HEAT PUMP - Google Patents

Abstract

The present invention is a compressor (17) for compressing the refrigerant during the heating operation of the four-season heat pump; An indoor condenser (2) generating heat of a compressed high-temperature and high-pressure refrigerant; An expansion device (4) capable of diffusing the condensed liquid refrigerant at low temperature and high pressure through heat of the condenser; In addition, EHP (Electric Heat) is combined with a heating increaser that increases the heating capacity in the existing heat pump equipped with an outdoor evaporator 12 so that the expanded low-temperature and low-pressure gas refrigerant can recover the latent heat of evaporation. Pump)

When the indoor heat is insufficient, the indoor heat exchanger (2) allows two inlets and outlets to be configured so that one flow path is a primary refrigerant cycle and the primary refrigerant outlet (47) and the expansion valve (4) of the auxiliary heating device (5). The remaining one flow path connects the secondary refrigerant inlet 46 and the outlet 45 of the auxiliary heating device 5 to the second refrigerant cycle, thereby forming two closed flow paths.

In addition, the inside of the auxiliary heating device is maintained in a vacuum, and the primary refrigerant inlet and outlet is located between the four sides (13) and the indoor heat exchanger (2), and the high-temperature and high-pressure refrigerant gas compressed by the heater (41) and the compressor is located below. The heating pipe function is performed by going to the indoor heat exchanger and constructing a heat pipe using a heater or high temperature primary refrigerant heat to perform a secondary heating role in the indoor unit. This implements a heat pump that can achieve the purpose of increasing heating.

Description

Auxiliary heating device for heat pump {aid heater for HEAT PUMP}

1 is a schematic diagram showing a cycle (secondary heat medium: steam) during heating operation of the heat pump of the present invention

2 is a schematic diagram showing a cycle (secondary heat medium: liquid) during heating operation of the heat pump of the present invention;

3 is a schematic diagram of an auxiliary heating apparatus using a gas

4 is a schematic diagram of an auxiliary heating apparatus using a liquid

Here, the description will be based on the heating operation.

Explanation of the protection of the main parts of the drawings (marked based on heating operation)

1. Indoor FAN 2. Indoor Heat Exchanger

3. check valve 4. expansion valve

5. Auxiliary heating device 6. Pump

11. Outdoor FAN 12. Outdoor Heat Exchanger

13. Four sides 15. Infusion

16. Liquid Separator 17. Compressor

41. Heater 42. Diaphragm

43. Second refrigerant inlet 44. Second refrigerant

45. Secondary refrigerant outlet 46. Secondary refrigerant outlet

47. Primary refrigerant outlet 48. Primary refrigerant outlet

49. Outer Case

The present invention relates to a heat pump that can increase the heating of the indoor unit. Specifically, the heating operation, which is performed through four steps of compression, condensation, expansion, and evaporation of the refrigerant, is performed in the condensation process of the refrigerant compressed to high temperature and high pressure. Heat dissipation through.

Electric coil is mainly used as auxiliary heating device used in the past. As a problem, electric power receiving facilities and construction should be preceded by a lot of electricity consumption, high electric charges should be paid for the use cost, and there is a concern of fire due to overheating when parts are abnormally heat exchanged with air.

In order to solve these problems, the present invention can achieve a large cost reduction by increasing the heating calories without increasing the system itself for the purpose of increasing the calories for heating only. Therefore, by attaching the auxiliary heating device 5 of the present invention that can be economically operated, it can be solved simply without additional equipment or oil cost.

The above-mentioned auxiliary heating device allows the heat source and the auxiliary heater of the refrigerant line that is circulated within the cycle to be adjusted according to the load, and configures the secondary line to circulate so that it is advantageous for heat recovery and vacuum in the secondary line. It is designed to have quick response and economical efficiency by making it possible to make heating medium (steam or high temperature liquid) usable with low calorie by heating it.

That is, the primary refrigerant is compressed to heat the heat medium (steam or liquid), which is the secondary refrigerant, through the auxiliary heating device in the gas state at high temperature and high temperature, and releases heat from the indoor heat exchanger, which is a condensation process, and expands and evaporates. By devising a system to be recompressed over, the object of the present invention can be achieved.

Here, the auxiliary heating device has a structure having a secondary refrigerant, its container, and an inlet and outlet through which primary and secondary refrigerants can enter, and a part of the indoor heat exchanger connected thereto is a primary refrigerant line and a portion of a secondary refrigerant. Lines and closed lines are each configured to maintain vacuum. That is, the auxiliary heating device and the indoor heat exchanger are connected to become a heat pipe using a primary refrigerant or a heater as a heat source, and operate as an additional heating means when heating by the primary refrigerant is insufficient.

The present invention is to provide an improved heating and cooling device to solve the above problems.

first. Energy-saving heating device (5) to supply a high amount of heat with low energy consumption. To this end, the pressure in the heat exchanger (2) -pump (6) -heater (5) is maintained in a vacuum so that the heat medium (liquid or steam) of the temperature to be used can be easily and quickly made. .                         

Second, it is possible to evaporate the heating medium (steam) or heat the heating medium (liquid) without the operation of the heater via the primary refrigerant flow path in the heating device to prevent unnecessary waste of electricity and to control step by step according to the heating load. Condensation may be doubled in the first cycle, increasing overall system efficiency.

Third, the electric heater 41 in the heating device 5 has the shape of a rod to form a structure in which the pipe 42 surrounds the outside thereof to serve as a diaphragm of the refrigerant to be heated by the pipe, thereby heating the heater 41 and the diaphragm ( The second refrigerant 44 in between 42 is designed to heat the structure to have a faster response than when heating the whole. The heater length and flow path size are designed so that the temperature increases little by little from the binary refrigerant inlet 43 to the temperature and flow rate required by the heat exchanger 2 to remove the amount of heat that may be wasted by preheating and using it. do.

The configuration for achieving the above objects and characteristics of the present invention will be described with reference to the case of heating through the drawings.

In general, the heat pump comprises a compressor 17 for compressing the refrigerant; An indoor heat exchanger (2) condensing in the indoor unit heat exchanger; An expansion device 4 for expanding the condensed liquid refrigerant at low pressure; It consists of an outdoor heat exchanger (12) for evaporating the expanded refrigerant.

In the present invention, if the outside air is severely lowered and it is difficult to maintain the room temperature in the system itself, an auxiliary heating device 5, a pump (applied only when circulating liquid heat medium), and an indoor heat exchanger 2 having two independent flow paths are constructed. To maintain room temperature

Auxiliary heating device (5, Fig. 4) is a case 49, which is firm to the internal and external pressure, so that the primary refrigerant inlet and outlet 47, 48 passes through the interior thereof, and the secondary refrigerant inlet 46 is at the bottom, the outlet 45 ) Is located at the top, and the heater 41, the diaphragm 42 around the heater, and the secondary refrigerant inlet 43 are located at the bottom of the diaphragm so that the primary refrigerant is accumulated in the apparatus for auxiliary heating purposes. (44) It is designed to be heated while passing around (evaporation in the case of steam) and, if this is insufficient, electricity is applied and additional heating to the primary refrigerant heat source.

The secondary refrigerant heated in the unit is designed to be pumped (if liquid) or self-evaporated (if steam), dissipating heat from the indoor heat exchanger (2) to the room by the air stream of (1) and back heating Recovered through the secondary coolant inlet 46 of the apparatus 5 and reheated.

In the case of cooling, the high-temperature, high-pressure refrigerant of the compressor 17 is opposite to the heating position of the four sides 13 to condense in the outdoor heat exchanger 12 and through the receiver 15 to the indoor expansion valve 4 Passing through), it flows into the cooling tube of the cooling evaporator in a state of being converted into a low-temperature, low-pressure refrigerant liquid, and serves as a conventional air conditioner that takes away the latent heat of evaporation.

By doing so, it is possible to perform an improved auxiliary heating function than the existing method in the same conditions (electrical consumption).

As described above, this four season air conditioner is made by heating the inside of the heating device to supply the heat medium by heating it to make heat medium quickly with small amount of heat, and by circulating the heat exchanger through circulation pump or natural evaporation to spread the heat amount into the air. By heating the air with a heater it is possible to exhibit a higher effect than the conventional heater to heat exchange. In addition, the process of discharging, warming the air and returning to the cabin is the same as that of a conventional electric heater, thus saving much more heat.

Claims (2)

In a heating and cooling system, one flow path of an indoor heat exchanger (2) having two flow paths during condensation during compression (17)-condensation (2)-expansion (4)-evaporation (12) is 1 Used as a secondary refrigerant condensation function (same as the existing heat pump), but connects an additional flow path to the secondary refrigerant inlet and outlet of the heating device 5 to form a secondary refrigerant line. In the apparatus for maintaining the vacuum and recovering the condensation heat of the secondary refrigerant when the calories are insufficient, as an auxiliary heating means, there is an inlet 48 and an outlet 47 for allowing the case 49 and the primary refrigerant to pass through the interior. The secondary refrigerant is provided with a secondary refrigerant outlet 45 and a secondary refrigerant inlet 46 to the indoor heat exchanger, but the secondary refrigerant outlet is positioned at a position higher than the height of the diaphragm 42 in the interior thereof, and the secondary refrigerant inlet 46 is provided. Equipped below the height of the diaphragm to facilitate evaporation and condensation recovery, and secondary cold filled below the height of the diaphragm. It consists of a medium 44, an internal heater 41, a diaphragm 42 around the diaphragm, and a secondary refrigerant inlet 43 under the diaphragm so as to heat the heater and the primary refrigerant as a heat source. Auxiliary heating device (5) designed to radiate heat to the machine (2). The method of claim 1, wherein when the heat medium is circulated in a liquid state, the pump (6) is installed and circulated between the secondary refrigerant flow path connected to the heating device and the indoor heat exchanger (2) so that the secondary refrigerant is transferred to the indoor heat exchanger (2). Heating device (5) to allow heat dissipation.

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