CN201014834Y - Ground source heat pump radiant air conditioner and hot water device - Google Patents

Abstract

The ground source heat pump radiant air conditioning and hot water device provides a ground source heat pump air conditioning system that can realize radiant cooling and heating, realize the functions of cooling in summer and heating in winter, and can use the heat in the condenser to provide life and Hot water for bathing and a multi-functional ground source heat pump air conditioning system that operates independently as a ground source heat pump water heater. The system includes a compressor, a sleeve condenser, an outdoor water heat exchanger, an indoor finned tube heat exchanger, and an indoor water heat exchanger. The device is divided into a refrigerant system, a radiant cooling and heating system, and an underground heat exchanger system. and several parts of the hot water system; the indoor finned tube heat exchanger (4) is connected in parallel with the indoor water refrigerant heat exchanger (18), and the indoor finned tube heat exchanger (4) operates as a dehumidifier in summer; and When the indoor water-refrigerant heat exchanger (18) and the indoor radiant coil (22) are not provided, the indoor finned tube heat exchanger (4) realizes cooling and dehumidification in summer and heating in winter.

Description

Ground source heat pump radiant air conditioner and hot water device

technical field

The utility model is an installation system integrating a ground source heat pump air conditioner, a heat pump water heater and a radiation cooling and heating system, and belongs to the technical field of ground source heat pump air conditioners and hot water devices.

Background technique

At present, the air-source heat pump and ground-source heat pump air-conditioning devices used by most households or businesses in our country realize cooling in summer and heating in winter, but in the transitional seasons of spring and autumn, the machines are idle and not used. Moreover, when used in summer, the heat in the condenser is discharged into the environment (in the air or underground), and the energy is not utilized; at the same time, our daily life needs to produce a large amount of domestic and bathing hot water, which consumes a large amount of high-grade energy. In this way, on the one hand, a large amount of heat energy is released in vain, and on the other hand, a large amount of high-grade energy is consumed for heating, which is a great waste for users.

Moreover, in the actual use of ground source heat pump air-conditioning devices, especially in the south of the Yangtze River, there is an imbalance between heat discharge to the ground in summer and heat extraction from the ground in winter, which leads to an increase in underground temperature and makes the ground source heat pump device use several years later. The energy efficiency ratio drops and it doesn't even work properly.

Radiant cooling and heating is a new technology that can improve the comfort of a room while increasing the efficiency of air conditioning units. It is a new attempt to combine radiant cooling and heating with ground source heat pumps.

Contents of the invention

Technical problem: The purpose of this utility model is to provide a ground source heat pump air-conditioning system that can realize radiant cooling and heating, realize the functions of cooling in summer and heating in winter, and can use the heat in the condenser to provide life and bathing at the same time Hot water and a ground source heat pump air conditioner that operates independently as a ground source heat pump water heater.

Technical solution: The utility model multi-functional ground source heat pump air-conditioning and hot water device consists of a compressor, a four-way valve, a casing condenser, a solenoid valve, a throttling capillary, an outdoor water heat exchanger, and an indoor finned tube heat exchanger. It is composed of indoor water heat exchanger, water tank, underground pipe, water pump, room radiant coil and valves. The device is divided into several parts: refrigerant system, radiant cooling and heating system, underground heat exchanger system and hot water system; among them,

In the refrigerant system, the discharge pipe of the compressor is connected to the intake pipe of the four-way valve, the intake pipe of the compressor is connected to the discharge pipe of the four-way valve, and the third interface of the four-way valve is respectively connected to the fourth solenoid valve. valve, the fifth solenoid valve, and the outlet of the fourth solenoid valve are connected to the inlet of the fourth solenoid valve through the water-cooled sleeve condenser, the third solenoid valve, the outdoor refrigerant water heat exchanger, and the fifth solenoid valve. The directional valve and the second throttling capillary are connected in series and then connected in parallel at both ends of the third solenoid valve; the outdoor refrigerant water heat exchanger, the third electric solenoid valve, and the one-way valve are connected to the second solenoid valve through a four-way connection, and the second solenoid valve The other end of the valve is connected in two ways, one of which is connected to the indoor finned tube heat exchanger, the first solenoid valve and the fourth port of the four-way valve through the first throttling capillary, and the other way of the second solenoid valve is connected through the first The three-throttle capillary tube, the indoor refrigerant water heat exchanger, the sixth solenoid valve and the fourth port of the four-way valve are connected;

In the radiant cooling and heating system, the indoor radiant coil heat exchanger is connected to the water side of the indoor refrigerant water heat exchanger through a water pump to form a circulation loop;

In the hot water system, the hot water tank is connected to the water side of the sleeve condenser through the hot water pump to form a circulation loop;

In the underground heat exchanger system, the underground coil heat exchanger is connected to the water side of the outdoor refrigerant water heat exchanger through the underground coil water pump to form a circulation loop;

The inlet end of the seventh electromagnetic valve is connected between the fifth electromagnetic valve and the outdoor refrigerant water heat exchanger, and the outlet end of the seventh electromagnetic valve is connected with the fourth interface of the four-way valve.

The indoor finned tube heat exchanger is connected in parallel with the indoor water refrigerant heat exchanger, and the indoor finned tube heat exchanger operates as a dehumidifier in summer; when no indoor water refrigerant heat exchanger and indoor radiant coil are installed, the indoor The finned tube heat exchanger realizes cooling and dehumidification in summer and heating in winter.

The device can not only realize the function of a common ground source heat pump air conditioner, but also can use a water-cooled sleeve condenser to produce hot water by switching between closing and opening of the electromagnetic valve when cooling in summer and hot water is needed. After the hot water in the water tank reaches a certain temperature (usually 55°C), the solenoid valve is opened and closed to switch and use the outdoor water refrigerant heat exchanger as the condenser; the device can also be operated as a heat pump water heater alone to obtain higher temperature heat suitable for bathing. Water, the ground source heat pump water heater absorbs heat from the soil or uses the heat released by the condenser during cooling, its efficiency is doubled higher than that of electric water heaters, and its energy utilization rate is much higher than that of gas water heaters and electric water heaters; in winter, the device can also In addition to high energy efficiency, heat pump water heaters operate to produce domestic hot water, and there is no problem of frosting and defrosting of ordinary air source heat pump water heaters.

The cold and hot water produced by the indoor water-refrigerant heat exchanger installed in the device is connected with the radiant coil arranged in the room to form a radiant cooling and heating air-conditioning system. At this time, the indoor air-finned tube heat exchanger is responsible for dehumidification in summer. load and winter part load. As long as the cooling and heating are realized through radiant coils, the indoor comfort is improved, and because the temperature of cold water and hot water for radiant cooling and heating is lower than that of ordinary air-conditioning hot water and higher than the temperature of ordinary air-conditioning chilled water, the unit's Efficiency can also be improved.

If the radiant cooling and heating system is not used, the effect of cooling in summer and heating in winter can also be achieved through the indoor air finned tube heat exchanger.

Beneficial effect: the beneficial effect of the utility model is:

1. The device can realize the summer cooling and winter heating functions of the normal ground source heat pump air conditioning system by means of indoor radiation heating and cooling, and the dehumidification function in summer is undertaken by the air finned tube heat exchanger;

2. During cooling in summer, by switching to use the water-cooled high-efficiency casing condenser, the heat released by the refrigerant during condensation can be used to produce domestic or bathing hot water; 3. The device can be used as a heat pump water heater alone by switching, and the soil is used as a heat source , to produce hot water for living or bathing. At this time, the energy utilization efficiency of the water heater is much higher than that of gas water heaters and electric water heaters, which can double the efficiency, save costs and energy, and the efficiency is better than ordinary air source heat pump water heaters, and there is no air source Frosting and defrosting of heat pump water heaters.

3. Since the heat of the condenser in summer is used to produce domestic hot water and it operates as a heat pump water heater in winter, it can solve the problem that the ordinary ground source heat pump air conditioning system discharges heat to the soil in summer and absorbs heat from the soil in winter, resulting in lower energy efficiency ratio or even Problems that don't work.

Description of drawings

Fig. 1 is the structural representation of the utility model. Among them: compressor 1, four-way valve 2, casing condenser 11, indoor finned tube heat exchanger 4, outdoor refrigerant water heat exchanger 10, indoor refrigerant water heat exchanger 18, first solenoid valve 3 , the second solenoid valve 6, the third solenoid valve 9, the fourth solenoid valve 14, the fifth solenoid valve 15, the sixth solenoid valve 20, the seventh solenoid valve 23, the first throttle capillary 5, the second throttle capillary 8 , the third throttling capillary 19, water tank 12, underground coil heat exchanger 17, indoor radiant coil heat exchanger 22, check valve 7, hot water pump 12, underground coil 13, water pump 21, expansion tank 16, Hot water tank 24.

Detailed ways

The multifunctional ground source heat pump air conditioner and hot water device of the utility model is composed of a compressor, a four-way valve, a casing condenser, a solenoid valve, a throttling capillary, an outdoor water heat exchanger, an indoor finned tube heat exchanger, and an indoor water exchanger. Heater, water tank, underground pipes, water pumps, room radiant coils and valves.

The system is divided into refrigerant system, radiant cooling and heating system, underground heat exchanger system and hot water system. The refrigeration system is connected by the exhaust pipe of compressor 1 and the inlet pipe A of four-way valve 2. The intake pipe of machine 1 is connected to the exhaust pipe B of four-way valve 2; the other pipe C of the four-way valve is connected to two pipes through a three-way, one of which passes through the fourth electromagnetic valve 14 and the water-cooled sleeve condenser 11 The other end of the water-cooled sleeve condenser 11 is connected to the third solenoid valve 9 and the second throttling capillary 8 through a three-way, and the other end is connected to the outdoor refrigerant water heat exchanger 10 through the fifth solenoid valve 15; In the pipeline, the outdoor refrigerant water heat exchanger 10, the third solenoid valve 9, and the one-way valve 7 are connected to the second solenoid valve 6 through a four-way, and the other end of the second solenoid valve 6 is connected to a three-way, and the three-way passes through The first throttling capillary 5 is connected to the indoor finned tube heat exchanger 4, and the other is connected to the indoor refrigerant water heat exchanger 18 through the third throttling capillary 19; the other pipe D of the four-way valve also passes through the four-way valve. Connected to the three-way pipeline, one way is connected to the indoor finned tube heat exchanger 4 through the first solenoid valve 3, the other way is connected to the outdoor refrigerant water heat exchanger 10 through a seventh solenoid valve 23, and the third way The sixth solenoid valve 20 is connected to the indoor refrigerant water heat exchanger 18; the hot water tank 24 in the hot water system is connected to the water side of the sleeve condenser 11 through the hot water pump 12 to form a circulation loop; in the underground heat exchanger system The underground coil heat exchanger 17 communicates with the water side of the outdoor refrigerant water heat exchanger 10 through the underground coil water pump 13 to form a circulation loop; The water side of the indoor refrigerant water heat exchanger 18 is connected to form a circulation loop.

The unit can operate in the following modes:

1.) Summer cooling mode operation, at this time the fourth solenoid valve 14, the third solenoid valve 9, the seventh solenoid valve 23 are closed, the fifth solenoid valve 15, the second solenoid valve 6, the first solenoid valve 3, the sixth solenoid valve Solenoid valve 20 is opened. The refrigerant enters the four-way valve 2 through the exhaust pipe of the compressor 1, passes through the exhaust pipe C of the four-way valve 2, enters the outdoor refrigerant water heat exchanger 10 through the fifth solenoid valve 15, passes through the second solenoid valve 6, and Pass through the first throttling capillary 5, enter the indoor finned tube heat exchanger 4, pass through the first solenoid valve 3, pass through the third throttling capillary 19 all the way, enter the indoor refrigerant water heat exchanger 18, the sixth solenoid valve 20, The refrigerant at the outlet of the first solenoid valve 3 and the sixth solenoid valve 20 enters the connecting pipe D of the four-way valve 2 through the four-way valve, and enters the compressor through the exhaust pipe B of the four-way valve and the suction pipe of the compressor to complete a refrigeration cycle. cycle. At this time, the indoor finned tube heat exchanger 4 is responsible for the indoor dehumidification function in summer. The water in the radiant coil absorbs heat in the indoor radiant coil and then circulates through the water pump to release heat in the indoor refrigerant water heat exchanger 18. Heat is absorbed in the radiant coil. If the indoor radiant coil heat exchanger 22 is not provided, the indoor water refrigerant heat exchanger 18 and the water pump 19 can be eliminated, and the cooling and dehumidification functions can be realized through the indoor finned tube heat exchanger 4, which is a common ground source heat pump air conditioner system.

2.) The heat pump mode is running in winter, at this time, the fourth solenoid valve 14, the third solenoid valve 9, and the seventh solenoid valve 23 are closed, and the fifth solenoid valve 15, the second solenoid valve 6, the first solenoid valve 3, the The six solenoid valves 20 are opened. The refrigerant passes through the exhaust pipe of the compressor 1, the intake pipe A of the four-way valve enters the four-way valve 2, passes through the exhaust pipe D of the four-way valve 2, and then divides into two paths, and one path enters the indoor finned tube through the first solenoid valve 3 The heat exchanger 4 releases heat, then throttles through the first throttling capillary 5, and the other way enters the indoor refrigerant water heat exchanger 18 through the sixth solenoid valve 20 to release heat, then throttles through the third throttling capillary 19, and passes through The low-temperature liquid throttled by the throttling capillary 5 and 19 is mixed, passes through the second electromagnetic valve 6, enters the outdoor refrigerant water heat exchanger 10, passes through the fifth electromagnetic valve 15, connects the pipe C of the four-way valve, and discharges the liquid through the four-way valve. The air pipe B is connected with the suction pipe of the compressor, thereby completing a heat pump cycle. At this time, the indoor finned tube heat exchanger 4 undertakes part of the indoor heating function in winter, and the water in the radiant coil emits heat in the indoor radiant coil and circulates through the water pump to absorb heat in the indoor water-refrigerant heat exchanger 18, and the temperature rises. Then enter the radiant coil to release heat. If the indoor radiant coil heat exchanger 22 is not provided, the indoor water-refrigerant heat exchanger 18 and the water pump 19 can be canceled to heat and raise the temperature through the indoor air finned tube heat exchanger 4, which is a common ground source heat pump. Air Conditioning System.

3.) In summer, it operates in the mode of cooling and heating water. At this time, the fifth solenoid valve 15 and the seventh solenoid valve 23 are closed, the fourth solenoid valve 14, the third solenoid valve 9, the second solenoid valve 6, and the first solenoid valve Valve 3 and the sixth solenoid valve 20 are opened. The refrigerant passes through the exhaust pipe of compressor 1, the intake pipe A of the four-way valve enters the four-way valve 2, passes through the exhaust pipe C of the four-way valve 2, and enters the casing condenser 11 through the fourth solenoid valve 14, where it is condensed After passing through the third solenoid valve 9, the second solenoid valve 6 is divided into two paths, one path passes through the first throttling capillary tube 5, enters the indoor finned tube heat exchanger 4, enters the first solenoid valve 3, and passes through the third throttling capillary tube all the way. The capillary tube 19 enters the indoor refrigerant heat exchanger water 18 and enters the sixth solenoid valve 20. The refrigerant at the outlet of the solenoid valve 3 and solenoid valve 20 passes through the four-way phase and then enters the connecting pipe D of the four-way valve 2 and passes through the four-way valve. The exhaust pipe B and the suction pipe of the compressor 1 enter the compressor to complete a refrigeration cycle. At this time, the indoor finned tube heat exchanger 4 is responsible for the indoor dehumidification function in summer. The water in the radiant coil absorbs heat in the indoor radiant coil and then circulates through the water pump to release heat in the indoor refrigerant water heat exchanger 18. Heat is absorbed in the radiant coil. If the indoor radiant coil heat exchanger 22 is not provided, the indoor water refrigerant heat exchanger 18 and the water pump 19 can be eliminated, and the cooling and dehumidification functions can be realized through the indoor air finned tube heat exchanger 4, which is a common ground source heat pump. Air Conditioning System.

4.) Running in hot water mode, at this time the fifth solenoid valve 15, the second solenoid valve 6, the first solenoid valve 3, the sixth solenoid valve 20, the third solenoid valve 9 are closed, the fourth solenoid valve 14, the seventh solenoid valve Solenoid valve 23 is opened. The refrigerant enters the four-way valve 2 through the exhaust pipe of the compressor 1, the intake pipe (A) of the four-way valve, passes through the exhaust pipe C of the four-way valve 2, and enters the casing condenser 11 through the fourth electromagnetic valve 14, and then After condensation, it enters the outdoor refrigerant water heat exchanger 10 to evaporate and absorb heat through the second capillary 8 and the one-way valve 7, and then the refrigerant passes through the seventh solenoid valve 23, the connecting pipe D of the four-way valve 2, and the four-way valve The exhaust pipe B and the suction pipe of the compressor 1 enter the compressor to complete a cycle, so that heat can be obtained from the soil and hot water can be produced. This operation mode can use the heat pump function in spring, autumn and summer to absorb heat from the soil and obtain domestic hot water with a temperature of about 50°C. At this time, the ground source heat pump water heater can overcome the problem of frosting and defrosting of the air source heat pump water heater in winter. At the same time, because the ground source heat pump water heater absorbs heat from the soil, and in summer when the system operates according to 3 cooling and hot water supply, the heat discharge to the soil is reduced, so the heat discharge of the whole system to the soil is greatly reduced compared with the ordinary ground source heat pump air conditioning system, so it can be Alleviate the problem that when the common ground source heat pump is used in the southern region, the heat discharge to the soil is much higher than the heat taken from the soil in winter, which causes the soil temperature to rise, and the energy efficiency of the common ground source heat pump air conditioning system is relatively low or even unable to operate after several years of use.

Claims (2)

1. A ground source heat pump radiation air conditioner and hot water apparatus, including compressor, double-pipe condenser, outdoor water heat exchanger, indoor finned tube heat exchanger, indoor water heat exchanger, characterized by that the apparatus divides several parts of refrigerant system, radiation cooling and heating system, underground heat exchanger system and hot water system; wherein,

in the refrigerant system, an exhaust pipe of a compressor (1) is communicated with an air inlet pipe (A) of a four-way valve (2), the air inlet pipe of the compressor (1) is communicated with an exhaust pipe (B) of the four-way valve (2), a third interface (C) of the four-way valve (2) is respectively connected with a fourth electromagnetic valve (14) and a fifth electromagnetic valve (15), the outlet end of the fourth electromagnetic valve (14) is connected to the inlet end of the fourth electromagnetic valve (14) through a water-cooling casing condenser (11), a third electromagnetic valve (9), an outdoor refrigerant water heat exchanger (10) and the fifth electromagnetic valve (15) in sequence, and a check valve (7) and a second throttling capillary tube (8) are connected in series and then connected in parallel at two ends of the third electromagnetic valve (9; the outdoor refrigerant water heat exchanger (10), the electric third magnetic valve (9) and the check valve (7) are connected with a second electromagnetic valve (6) through a four-way valve, the other end of the second electromagnetic valve (6) is connected with two paths, wherein one path is connected with the indoor finned tube heat exchanger (4) and the first electromagnetic valve (3) through a first throttling capillary tube (5) and a fourth interface (D) of the four-way valve (2), and the other path of the second electromagnetic valve (6) is connected with the fourth interface (D) of the four-way valve (2) through a third throttling capillary tube (19), an indoor refrigerant water heat exchanger (18) and a sixth electromagnetic valve (20);

an indoor radiation coil heat exchanger (22) in the radiation cooling and heating system is communicated with the water side of an indoor refrigerant water heat exchanger (18) through a water pump (21) to form a circulation loop;

a hot water tank (24) in the hot water system is communicated with the water side of the sleeve condenser (11) through a hot water pump (12) to form a circulation loop;

an underground coil heat exchanger (17) in the underground heat exchanger system is communicated with the water side of an outdoor refrigerant water heat exchanger (10) through an underground coil water pump (13) to form a circulation loop;

the inlet end of the seventh electromagnetic valve (23) is connected between the fifth electromagnetic valve (15) and the outdoor refrigerant water heat exchanger (10), and the outlet end of the seventh electromagnetic valve (23) is connected with the fourth interface (D) of the four-way valve (2).

2. The ground source heat pump radiant air-conditioning and water heating apparatus as claimed in claim 1, characterized in that the indoor finned tube heat exchanger (4) is connected in parallel with the indoor water refrigerant heat exchanger (18), the indoor finned tube heat exchanger (4) operates as a dehumidifier in summer; when the indoor water refrigerant heat exchanger (18) and the indoor radiation coil (22) are not arranged, the indoor finned tube heat exchanger (4) realizes cooling and dehumidifying in summer and heating in winter.

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