CN201059768Y - Dual-source double-effect heat recovery heat pump water heater - Google Patents

Abstract

The utility model discloses a double-source double-effect heat recovery heat pump hot water device, which comprises an evaporation heat absorber, a condensation heater and pipelines connected thereto. There is a waste hot water collector under the outlet pipe, and a heat exchanger is installed in the waste water collector. One end of the heat exchanger is connected to the tap water inlet pipe, and the other end is connected to the pipeline to lead to the condensing heater, and the water outlet of the evaporation heat absorber is connected to The drainage pipe and the water inlet are connected to the waste hot water supply pipe, and the waste water hot water inlet pipe is equipped with a circulating water pump connected to the waste water hot water collector. The utility model has the advantage of using the heat energy in the bathing wastewater and the tap water to exchange heat through the heat exchanger to raise the temperature of the tap water, and to exchange heat with the evaporative heat absorber of the heat pump unit, and to heat the tap water together with the work energy of the compressor to obtain 45-50 ℃ hot water for bathing, and at the same time, free cold energy can be obtained to cool the room.

Description

Dual-source double-effect heat recovery heat pump water heater

technical field

The utility model relates to a double-source double-effect heat recovery heat pump hot water device for preparing hot water for bathing.

Background technique

The traditional heating methods of hot water for bathing mostly use electric water heaters, coal-fired boilers, and gas-fired boilers, which have low efficiency and high energy consumption. In recent years, the development of air-source heat pump water heaters that use air as the heat source provides people with cheap hot water for bathing. However, due to the influence of geographical location and climatic conditions, there is a problem that the efficiency is low or even unusable in autumn and winter in northern my country. and other disadvantages.

Contents of the invention

The purpose of the utility model is to provide a dual-source and double-effect heat recovery heat pump hot water device for preparing hot water for bathing, which is more stable, reliable, efficient and energy-saving than air source heat pump water heaters.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a dual-source double-effect heat recovery heat pump water heater, including an evaporation heat absorber, a condensation heater and pipelines connected thereto, an evaporation heat absorber and a condensation heating There is a refrigerating medium circulation pipeline connected between them, a compressor and a throttling device are installed on the pipeline, a fan is installed on one side of the evaporation heat absorber, and a waste hot water collector is installed under the outlet pipe of the condensing heater. There is a heat exchanger inside the waste water collector, one end of the heat exchanger is connected to the tap water inlet pipe, the other end is connected to the pipeline leading to the condensing heater, the water outlet of the evaporation heat absorber is connected to the drainage pipe, and the water inlet is connected to the waste water supply pipe , The waste hot water inlet pipe is equipped with a circulating water pump connected to the waste water collector.

The evaporative heat absorber adopts a finned double-medium pipeline evaporative heat absorber. The drainage pipe connected to the water outlet of the evaporative heat absorber is connected to the frozen waste water collection tank and then discharged into the sewer. The frozen waste water collection tank is equipped with a chilled water exchange The heat coil and the chilled water heat exchange coil are connected to the indoor cooler through the chilled water circulation pipeline, and the chilled water circulation pipeline is provided with a chilled water circulation pump.

The chilled water circulation pipeline is connected with a tap water replenishment pipe, and a check valve and a valve are arranged on the tap water replenishment pipe.

A fine filter is provided on the water inlet pipe in front of the circulating water pump connected to the evaporation heat absorber, a shower head is installed at the end of the water outlet pipe of the condensation heater, and an overflow port is provided on the upper wall of the waste water collector , a drain valve is provided at the bottom, and a filter plate is provided at the top of the waste water collector.

The utility model has the advantage of using the heat energy in the bathing wastewater and the tap water to exchange heat through the heat exchanger to raise the temperature of the tap water, and to exchange heat with the evaporative heat absorber of the heat pump unit, and to heat the tap water together with the work energy of the compressor to obtain 45-50 ℃ hot water for bathing, and at the same time, free cold energy can be obtained to cool the room. Dual source means that the device can use two heat sources of bathing wastewater and indoor air. Double effect means that the device has dual functions of heating and cooling, which not only improves the working efficiency of the heat pump unit, but also reduces the thermal pollution of wastewater. Compared with the currently used coal-fired and gas-fired boilers, electric water heaters, and heat pump hot water units, the energy-saving effect is very significant, and the operation is safe and reliable.

Description of drawings

Shown in the accompanying drawing is the connection diagram of the utility model.

Detailed ways

As shown in the drawings, the utility model includes an evaporation heat absorber 3, a condensation heater 7 and a tap water pipeline 14 connected thereto, and a refrigerant circulation pipeline is connected between the evaporation heat absorber 3 and the condensation heater 7 , the pipeline is provided with a compressor 6 and a throttling device 5 . The evaporative heat absorber 3 adopts a finned double-medium pipeline evaporative heat absorber, and the bottom is provided with a condensation drain port 19. The evaporative heat absorber 3 is provided with a waste steam inlet 1 and a waste steam outlet 2, and the side of the waste steam outlet 2 is set There is a fan 17, and the drainage pipe 4 connected to the water outlet of the evaporation heat absorber 3 is connected to the frozen waste water collection tank 21 and then discharged into the sewer 20. The frozen waste water collection tank 21 is provided with a chilled water heat exchange coil 22, and the chilled water heat exchange plate The pipe 22 is connected to the indoor cooler 23 through the chilled water circulation pipeline 24, the chilled water circulation pipeline 24 is provided with a chilled water circulation pump 25, the chilled water circulation pipeline 24 is connected with a tap water replenishment pipe 30, and the tap water replenishment pipe 30 is provided with a check valve 28 and Valve 29. A shower head 16 is installed at the end of the outlet pipe 27 of the condensing heater 7, a waste water collector 8 is arranged under the shower head 16, an overflow port 18 is arranged on the upper wall of the waste water collector 8, and a drain valve 15 is arranged at the bottom. A filter plate 26 is provided at the top of the waste water collector 8 . A heat exchanger 13 is arranged in the waste hot water collector 8, one end of the heat exchanger 13 is connected to the tap water inlet pipe 12, the other end is connected to the tap water pipeline 14 to lead to the condensation heater 7, and the water outlet of the evaporation heat absorber 3 is connected to the drain pipe 4 , the water inlet is connected to the waste water supply pipe 11, the waste water inlet pipe 11 is equipped with a circulating water pump 10 connected to the waste water collector 8, and the water inlet pipe before the circulating water pump 10 is provided with a fine filter 9.

The hot water flowing out of the shower head 16 is used to filter large impurities such as hair through the filter plate 26, and then flows into the waste water collector 8, exchanges heat with the heat exchanger 13, and is drawn by the circulating water pump 10 to evaporate and absorb heat. Heat exchange with the refrigerant in the vessel 3, after absorbing heat, the working medium turns into a high-temperature and high-pressure gas through the compressor 6, enters the condenser 7 for heat exchange with tap water, and is condensed into a high-pressure liquid, which passes through the throttling device 5 Afterwards, it becomes a low-pressure liquid and enters the evaporation heat absorber 3 to absorb heat again, and starts the next cycle. After the heat exchange temperature of the waste hot water is lowered by the evaporating heat absorber 3, it enters the frozen waste water collection tank 21 from the drain pipe 4, exchanges heat with the chilled water heat exchange coil 22, and then is discharged into the sewer 20, and the chilled water temperature is lowered by the circulating water pump 25. Extracted into the indoor cooling device 23 to take away the room heat. The tap water preheated by the heat exchanger 13 in the waste hot water collector 8 enters the condensing heater 7 and is heated to meet the requirements of bathing and then discharged. Since there is no waste hot water available for use at the beginning, the indoor air can be used as a heat source at this time, and the fan 17 starts to absorb indoor air from the bathing waste steam inlet 1 into the evaporation heat absorber 3 for energy exchange, and then discharges it from the waste steam outlet 2 . When there is waste hot water, the water pump 10 starts to draw the waste hot water into the evaporative heat absorber 3 for heat exchange. In summer, the fan 17 continues to run to remove the waste heat from bathing, and the condensed water generated is discharged from the condensate drain 19; in winter, the system starts Back fan 17 is closed. There will be deposits at the bottom of the waste water collector 8 after the system has been running for a period of time, and it is necessary to regularly open the drain valve 15 at the bottom to discharge.

Claims (4)

1. A dual-source double-effect heat recovery heat pump water heater, comprising an evaporative heat absorber (3), a condensation heater (7) and a pipeline (14) connected thereto, an evaporative heat absorber (3) and a condensing heat absorber A refrigerant circulation pipeline is connected between the heaters (7), a compressor (6) and a throttling device (5) are arranged on the pipeline, and a fan (17) is arranged on one side of the evaporation heat absorber (3). It is characterized in that: a waste water collector (8) is provided under the water outlet pipe (27) of the condensation heater (7), and a heat exchanger (13) is arranged in the waste water collector (8). (13) One end is connected to the tap water inlet pipe (12), the other end is connected to the pipeline (14) leading to the condensing heater (7), the water outlet of the evaporation heat absorber (3) is connected to the drain pipe (4), and the water inlet is connected to the waste heat The water supply pipe (11), the waste water hot water inlet pipe (11) is equipped with a circulating water pump (10) and connected to the waste heat water collector (8). 2. The dual-source double-effect heat recovery heat pump water heating device as claimed in claim 1, characterized in that: the evaporative heat absorber (3) adopts a finned double-medium pipeline evaporative heat absorber, and the evaporative heat absorber (3) The drainage pipe (4) connected to the water outlet is connected to the frozen waste water collection box (21) and then discharged into the sewer (20). The water heat exchange coil (22) is connected to the indoor cooler (23) through the chilled water circulation pipeline (24), and the chilled water circulation pipeline (24) is provided with a chilled water circulation pump (25). 3. The dual-source and double-effect heat recovery heat pump water heating device as claimed in claim 2, characterized in that: said chilled water circulation pipeline (24) is connected with tap water replenishment pipe (30), and tap water replenishment pipe (30) is provided with There are check valves (28) and valves (29). 4. The dual-source and double-effect heat recovery heat pump water heating device according to claim 1, 2 or 3, characterized in that: the water inlet pipe before the circulating water pump (10) connected to the evaporative heat absorber (3) A fine filter (9) is provided, a shower head (16) is installed at the outlet pipe (27) end of the condensation heater (7), and an overflow port (16) is provided on the upper wall of the waste water collector (8). 18), the bottom is provided with a drain valve (15), and the upper mouth of the waste water collector (8) is provided with a filter plate (26).

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