CN201081456Y - High-efficiency energy-saving air-conditioning water heater system with double condensers - Google Patents

Abstract

The utility model relates to the technical field of air-conditioning water heaters, in particular to a high-efficiency energy-saving air-conditioning water heater system with double condensers; the system comprises a compressor, a water heater, a four-way valve, an outdoor heat exchanger and an indoor heat exchanger; the water heater is respectively connected with the compressor and the high-pressure end of the four-way valve, the low-pressure end of the four-way valve is connected with the compressor, and the four-way valve is also connected with the outdoor heat exchanger and the indoor heat exchanger; the outdoor heat exchanger and the indoor heat exchanger are connected with each other; the utility model makes the water heater and the other two heat exchangers in series, the heat exchangers of the water heater are always condensers, and one of the other two heat exchangers is also used as a condenser or a subcooler; therefore, the condenser is doubled, the circulation state of the refrigerating system is undoubtedly greatly improved, and the performance coefficient of the product is improved.

Description

A high-efficiency energy-saving air-conditioning water heater system with double condensers

Technical field:

The utility model relates to the technical field of air-conditioning water heaters, in particular to a high-efficiency and energy-saving air-conditioning water heater system with double condensers.

Background technique:

In an era when environmental protection and energy saving are the historical mission of all mankind, finding new energy, developing renewable energy, and reducing product energy consumption have become the development direction of the refrigeration industry. The utilization of solar energy, ground energy, air energy, wind energy and water energy is being promoted all over the world. The air conditioner is a product with an independent structure, and the heat pump water heater is also a product with an independent structure. Both products are derivative products of refrigeration products. According to the principle of refrigeration, the refrigeration cycle has compression, condensation, expansion (also called throttling) and There are four processes of evaporation; the condensation process is an exothermic process, and the evaporation process is an endothermic process. The air conditioner cools the indoor air by evaporative heat absorption and cooling process in summer, and heats the indoor air by condensation and heat release process in winter. The heat pump water heater fully uses the condensation and heat release process to heat domestic water; Heat or heat release; while the heat absorption and heat release of refrigeration equipment are a pair of "twins" that live together and cannot exist alone, but these two products only use one of the "twin energy", resulting in Almost half of the energy is wasted. Heat pump products are energy-saving products recommended by the government, but the comprehensive utilization of the "twin energy" of this product has not made much progress so far, and the energy efficiency ratio is only slightly higher than that of ordinary air conditioners, almost staying at around 3.0W/W. The air-conditioning water heater realizes the comprehensive utilization of part of twin energy. Turning two refrigerators with different functions into a comprehensive multi-purpose machine generally has three heat exchangers, one of which is used to adjust the cooling or heating load, and this heat exchanger is mostly in parallel with the other two In fact, the refrigeration system has not really achieved the full utilization of "twin energy".

Utility model content:

The purpose of this utility model is to provide a dual condenser high-efficiency energy-saving air-conditioning water heater system, which can greatly improve the circulation state of the refrigeration system and improve the performance coefficient of the product.

In order to achieve the above object, the utility model adopts the following technical solutions:

It includes a compressor, water heater, four-way valve, outdoor heat exchanger, and indoor heat exchanger; The outdoor heat exchanger and the indoor heat exchanger are connected.

The outdoor heat exchanger and the indoor heat exchanger are connected to each other, and the condenser of the water heater is always connected to one of the outdoor heat exchanger or the indoor heat exchanger, becoming two condensers with the same function in the refrigeration system.

The beneficial effects of the utility model are: the water heater and the other two heat exchangers are connected in series, the heat exchanger of the water heater is always a condenser, and one of the other two heat exchangers is also used as a condenser or supercooling The condenser; thereby doubling the size of the condenser, greatly improving the cycle state of the refrigeration system without condensation, and improving the coefficient of performance of the product.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the schematic diagram of embodiment one of the utility model

Fig. 2 is the schematic diagram of embodiment two of the utility model

10-Compressor 11-Water heater 12-Four-way valve 13-Outdoor heat exchanger 14-Indoor heat exchanger

Detailed ways:

The utility model comprises a compressor 10, a water heater 11, a four-way valve 12, an outdoor heat exchanger 13, and an indoor heat exchanger 14; The low-pressure end is connected to the compressor 10 , and the four-way valve 12 is also connected to the outdoor heat exchanger 13 and the indoor heat exchanger 14 .

The outdoor heat exchanger 13 and the indoor heat exchanger 14 are connected to each other through a throttling system, and the condenser of the water heater 11 is always connected to one of the outdoor heat exchanger 13 or the indoor heat exchanger 14, so that the cooling system has the same function of the two condensers.

The utility model has two implementation modes, and Fig. 1 shows the schematic diagram of the heating of the air-conditioning refrigeration water heater: as can be seen from the figure, the high-temperature and high-pressure refrigerant gas discharged from the compressor 10 directly flows into the condenser in the water heater 11 for heating Hot water; the refrigerant gas-liquid mixture with a temperature lower than that of the hot water in the water heater 11 passes through the four-way valve 12. At this time, the four-way valve 12 does not operate, and enters the outdoor heat exchanger 13, that is, the second condenser, for supercooling. The mixed gas liquid completely turns into a supercooled liquid; the supercooled refrigerant enters the indoor heat exchanger 14 after passing through the throttling device, that is, the air conditioner, absorbs heat and evaporates, and achieves the purpose of reducing the air temperature in the room; the superheated refrigerant gas after absorbing heat passes through the four-way The low-pressure end of the valve 12 returns to the compressor 10, and the compressor 10 consumes a certain amount of power to increase the energy level of the refrigerant and turn it into a high-temperature and high-pressure gas; this completes a refrigeration cycle for air conditioning, refrigeration, and water heater heating, so that the refrigeration system has dual effects of cold and heat. be fully used. High-efficiency and energy-saving dual-condenser air-conditioning water heater The comprehensive energy efficiency ratio of the hot water heating capacity of the air conditioner plus the cooling capacity of the air conditioner and the power consumption of the whole machine is as high as 8W/W, which is more than 2.5 times more energy-saving than that of a single air conditioner heat pump water heater .

Figure 2 shows the principle diagram of water heater heating and air conditioning heating: as can be seen from the figure, the high-temperature and high-pressure refrigerant gas discharged from the compressor 10 still directly flows into the condenser in the water heater 11 to heat hot water; 11. The refrigerant gas-liquid mixture at the temperature of hot water passes through the four-way valve 12. At this time, the four-way valve 12 is diverted and enters the indoor heat exchanger 14, that is, the second condenser. The effect of air temperature, if the water temperature is low, the indoor fan of the air conditioner may not run, and the indoor fan of the air conditioner will be turned on after the water heater reaches the set temperature, which can quickly heat up the room, and the mixed gas and liquid will be cooled by the second condenser. The supercooled refrigerant enters the outdoor heat exchanger 13 after passing through the throttling device, which is the evaporator of the refrigeration system, which absorbs the heat in the lower energy level air in the outdoor air and evaporates; the refrigerant gas after absorbing heat is passed through four The low-pressure end of the through valve 12 returns to the compressor 10, and the compressor 10 consumes a certain amount of power to increase the energy level of the refrigerant to become a high-temperature and high-pressure gas. This completes a refrigeration cycle of air-conditioning heating and water heater heating.

In winter, because only the exothermic effect in the refrigeration cycle is used for heating, the energy efficiency ratio at this time is not as high as in summer, but due to the application of double condensers and the heat storage effect of the water heater, the energy efficiency ratio of the air conditioner water heater is still higher than that of a single air conditioner Heater or heat pump water heater, and can store the higher air energy during the day and use it when the lower air energy is at night, so that the air conditioning heating can complement and stabilize the effect.

When making hot water alone, it is almost the same as the heating cycle of the air conditioner and the water heater, except that the fan of the condenser in the air conditioner is not turned on, which slightly heats the room. It is suitable for use when the weather is cold, and the air conditioner can be used for cooling and The water heater operates in the heating mode. Due to the hot weather, the water heater can easily reach the set temperature, so the cooling time will not be very long, and the cooling of the room is limited.

Claims (2)

1. the high efficiency energy saving air conditioner water-heater system of a double-condenser, it comprises compressor (10), water heater (11), cross valve (12), outdoor heat exchanger (13), indoor heat exchanger (14); It is characterized in that: water heater (11) is connected with the high-pressure side of compressor (10) and cross valve (12) respectively, and the low-pressure end of cross valve (12) connects compressor (10), and cross valve (12) also is connected with outdoor heat exchanger (13) and indoor heat exchanger (14).

2. the high efficiency energy saving air conditioner water-heater system of a kind of double-condenser according to claim 1 is characterized in that: outdoor heat exchanger (13) is connected to each other with indoor heat exchanger (14).

Images