CN101324383B - A new type of seawater heat pump cooling, heating, hot water and fresh water quadruple supply system - Google Patents

Abstract

The invention discloses a novel seawater heat pump cooling, heating, hot water and fresh water quadruple supply system, which is characterized in that it includes a heat pump system, a fresh water preparation system and a hot water preparation system, wherein the heat pump system includes a compressor (1), a Thermal condenser (3), first throttle valve (4), refrigeration evaporator (5), gas-liquid separator (7), liquid receiver (8), refrigerant circuit solenoid valve and water side circuit solenoid valve; The fresh water preparation system includes a coil condenser (2), a second air duct (18), an air inlet preheating heat exchanger (9), a spray chamber (10), a water baffle (16), an evaporator for desalination ( 6), the second throttle valve (50) and electromagnetic valve (19); the hot water preparation system includes a heat exchanger (11) for hot water production, a first air duct (15) and an electromagnetic valve (20). The invention has compact structure, one machine with multiple functions, effectively realizes high-efficiency utilization of waste heat, reduces cost and saves space.

Description

A new type of seawater heat pump cooling, heating, hot water and fresh water quadruple supply system

Technical field:

The patent of the present invention relates to a new seawater heat pump cooling, heating, hot water and fresh water quadruple supply system, in particular to a four-way system that adopts seawater heat pump technology for cooling in summer, heating in winter, providing hot water throughout the year and desalinating seawater to obtain fresh water. A combined power supply system belongs to the technical field of energy and refrigeration and air conditioning. the

Background technique:

At present, the seawater heat pump unit system is mainly used for refrigeration and heating or seawater desalination treatment, and one unit can only complete one or two of these functions. When the unit is used for cooling or heating, the unit is idle in non-heating and air-conditioning seasons, resulting in a waste of investment. When the unit is used for seawater desalination, the water vapor from the condenser is cooled in the evaporator to produce fresh water. Due to the large temperature difference between the water vapor and the refrigerant in the evaporator, the available energy efficiency is low, resulting in a large loss of available energy. In addition, in order to meet the hot water demand for crafts and households, a water heater must be configured separately, which not only requires an increase in investment, but also takes up more construction space. the

Invention content:

The object of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a compact structure, one machine with multiple functions, which effectively realizes the cascade high-efficiency utilization of waste heat, reduces costs, saves space, and realizes cooling in summer, heating in winter, and production processes. A new type of seawater heat pump cooling, heating, hot water and fresh water quadruple supply system integrating domestic hot water and desalinated seawater. the

The purpose of the present invention can be achieved through the following measures: a novel seawater heat pump cold, heat, hot water and fresh water quadruple supply system is characterized in that it includes a heat pump system, a fresh water preparation system and a hot water preparation system, wherein the heat pump system includes Compressor, the outlet of the compressor is connected to the heat exchanger through a valve, and the heat exchanger is respectively connected to the liquid receiver, the first throttle valve, and the gas-liquid separator through the valve. The compressor and the gas-liquid separator are located at one end of the heat exchanger, and the storage The liquid container and the first throttling valve are located at the other end of the heat exchanger. The water inlet and outlet of the heat exchanger are respectively connected to the water inlet and the water outlet. The liquid reservoir is respectively connected to the first throttle valve and the second throttle valve. The fresh water preparation system includes a coil condenser, and the coil condenser includes an outer cylinder and a coil group. The coils of the coil condenser are respectively connected with the outlet of the compressor and the liquid receiver. The upper part of the barrel of the condenser is connected to the air outlet, the air inlet of the air outlet is provided with a water baffle and a fan, and the air outlet is provided with an air regulating valve, which divides the air outlet into the second air passage and the second air passage. One air duct, the second air duct is connected to the air inlet preheating heat exchanger, the spray chamber, and the evaporator for desalination in sequence. One end of the desalination evaporator is connected to the gas-liquid separator, and the other end is connected to the second throttle valve. There are water baffles on both sides of the chamber, and a seawater tank is provided at the bottom of the spray chamber, which is connected to the seawater outlet. The coil condenser is in the tank, and the tank is connected to the air inlet preheating heat exchanger through a water pump. , the air inlet and outlet of the desalination evaporator are connected to the second air duct, the lower part of the desalination evaporator is provided with a fresh water tank, the fresh water tank is connected to the desalinated water outlet, and the spray chamber is connected to the seawater inlet through the first solenoid valve and water pump , the air inlet preheating heat exchanger is provided with a seawater outlet; the hot water preparation system includes a heat exchanger for hot water production, the air inlet and outlet of the heat exchanger for hot water production are connected to the first air duct, and the heat The lower part of the heat exchanger for water production is provided with a hot water tank, the hot water tank is connected to the electric auxiliary heater and the hot water outlet, the heat exchanger for hot water production is provided with an air outlet, and the seawater inlet passes through the water pump, the second solenoid valve and the heat exchanger. One end of the heat exchanger for water production is connected, and the other end of the heat exchanger for hot water production is connected with the barrel of the coil condenser.

In order to further achieve the purpose of the present invention, the heat pump system is replaced by: the outlet of the compressor is connected to the heating condenser through the sixth refrigerant circuit solenoid valve, and the heating condenser is respectively connected to the liquid receiver, the first water side circuit electromagnetic The valve, the water outlet, and the liquid receiver are respectively connected to the first throttle valve and the second throttle valve. The first throttle valve is connected to the refrigeration evaporator through the fifth refrigerant circuit solenoid valve, and the first water side circuit solenoid valve is connected to the second throttle valve. The solenoid valves of the water side circuit are connected in parallel, the water inlet is connected with the solenoid valve of the first water side circuit and the solenoid valve of the second water side circuit respectively, and the refrigeration evaporator is respectively connected with the gas-liquid separator, the solenoid valve of the second water side circuit and the fifth refrigeration The solenoid valve of the agent circuit, the solenoid valve of the third water side circuit, the solenoid valve of the third water side circuit is connected to the water outlet, the gas-liquid separator is connected to the inlet of the compressor, the second throttle valve is connected to the evaporator for desalination, and the evaporator for desalination After being connected in parallel with the refrigeration evaporator, it is connected to the gas-liquid separator, and the outlet of the compressor is connected to the coil condenser. The coil condenser consists of several coils, and the number of operating coils is determined by the matching requirements of the system. the

In order to further realize the object of the present invention, the refrigerating evaporator and the heating condenser adopt a plate heat exchanger, a shell-and-tube heat exchanger or a heat pipe heat exchanger. the

In order to further achieve the purpose of the present invention, the compressor of the heat pump system is connected to the gas-liquid separator through the first refrigerant circuit solenoid valve and the second refrigerant circuit solenoid valve, and the first refrigerant circuit solenoid valve and the second refrigerant circuit The pipeline between the circuit solenoid valves is connected to the refrigerant interface of the heat exchanger, and the other refrigerant interface of the heat exchanger is respectively connected to the third refrigerant circuit solenoid valve, the fourth refrigerant circuit solenoid valve, and the third refrigerant circuit solenoid valve. The valve is connected to the liquid reservoir, and the liquid reservoir is respectively connected to the first throttle valve and the second throttle valve. The water inlet and outlet of the heat exchanger are connected through the water side circuit solenoid valve group. The water side circuit solenoid valve group It is a loop composed of the solenoid valve of the fourth water side circuit, the solenoid valve of the fifth water side circuit, the solenoid valve of the sixth water side circuit and the solenoid valve of the seventh water side circuit. The solenoid valve of the fourth water side circuit and the fifth water side The water interface of the heat exchanger is connected between the solenoid valves of the loop, the other water interface of the heat exchanger is connected between the solenoid valve of the sixth water side loop and the solenoid valve of the seventh water side loop, the solenoid valve of the sixth water side loop and the fifth The water side circuit solenoid valve is connected to the water inlet, and the fourth water side circuit solenoid valve and the seventh water side circuit solenoid valve are connected to the water outlet. the

In order to further realize the purpose of the present invention, the heat exchanger adopts a plate heat exchanger, a shell-and-tube heat exchanger or a heat pipe heat exchanger. The compressor can be a variable frequency compressor or a compressor unit, and the operation of the compressor is adjusted according to the actual load condition. the

In order to further achieve the purpose of the present invention, the desalination evaporator is a finned tube or plate-fin heat exchanger, and the fins are arranged parallel to the air inlet direction and perpendicular to the fresh water tank. the

In order to further achieve the purpose of the present invention, the air inlet preheating heat exchanger is a finned tube heat exchanger, and the direction of the fins is parallel to the direction of the airflow. the

In order to further achieve the purpose of the present invention, the heat exchanger for hot water production is a finned tube or plate-fin heat exchanger. When the finned tube type is used, the direction of the fins is parallel to the direction of the airflow, and the direction of the fins is parallel to the direction of the hot water tank. vertical. the

Compared with the prior art, the present invention can produce the following positive effects: the main feature of the present invention lies in two aspects: on the one hand, it can realize cooling in summer, heating in winter, and supply of domestic hot water and fresh water throughout the year; Condenser waste heat utilization. Residual heat includes steam waste heat and seawater waste heat. In the coil condenser, the refrigerant releases heat to the seawater, and the temperature of the seawater rises after absorbing heat (residual heat of seawater) and the pressure of the liquid surface decreases under the action of the fan suction to generate water vapor (residual heat of water vapor). The water vapor is divided into two paths along the air channel, and enters the heat exchanger for hot water production and the heat exchanger for air intake preheating respectively, and exchanges heat with seawater in the heat exchanger for hot water production and condenses to obtain domestic hot water (if hot When the water temperature is low, the electric auxiliary heater can be turned on), and at the same time, the seawater absorbs the waste heat of water vapor to realize preheating, so that the seawater enters the condenser at a higher temperature, which makes it easier to evaporate the contained water. After the seawater absorbs heat in the condenser, the temperature rises further, and part of the water contained in it evaporates and enters the air inlet preheating heat exchanger to exchange heat with the inlet air of the evaporator, increasing the inlet air temperature so that the inlet air enters the spray chamber. It has stronger water absorption capacity, increases the moisture content of the fresh water evaporator air intake, and effectively realizes the utilization of condenser waste heat. Increasing the evaporator intake air temperature can increase the evaporation temperature of the heat pump system, and the heat pump system is at a higher temperature. Its operating efficiency is higher at a lower evaporation temperature; increasing the moisture content of the intake air can not only obtain more desalinated water, but also help reduce the temperature difference between the air and the refrigerant during the heat-moisture heat exchange process of the air. the

The invention can be used for medium-sized and above cold, hot, domestic hot water and fresh water supply in coastal areas. By adopting the principle of seawater heat pump, the device is compact and multi-purpose, effectively realizing the high-efficiency utilization of waste heat, and can be widely used in enterprises in coastal areas , Community heating, air conditioning, hot water and fresh water supply are of great significance for meeting people's heating and hot water needs and alleviating water shortages, and their promotion and application have great economic and social value. the

Description of drawings:

Fig. 1 is the structural schematic diagram of an embodiment of the present invention;

Fig. 2 is a schematic structural principle diagram of another embodiment of the present invention. the

The specific embodiment: the present invention is described below in conjunction with accompanying drawing:

Embodiment 1: A novel seawater heat pump cooling, heating, hot water and fresh water quadruple supply system (see FIG. 1 ), which includes a heat pump system, a fresh water preparation system and a hot water preparation system. The heat pump system includes a compressor 1, a heating condenser 3, a first throttle valve 4, a refrigeration evaporator 5, a gas-liquid separator 7, a liquid receiver 8, a fifth refrigerant circuit solenoid valve 25, and a sixth refrigerant circuit. The circuit solenoid valve 26 and the first water side circuit solenoid valve 21, the second water side circuit solenoid valve 22, the third water side circuit solenoid valve 23, the refrigeration evaporator 5 and the heating condenser 3 can adopt plate heat exchangers, tubes Shell heat exchanger, heat pipe heat exchanger and other forms, the compressor 1 is connected to the heating condenser 3 through the solenoid valve 26 of the sixth refrigerant circuit, and the heating condenser 3 is respectively connected to the liquid receiver 8 and the electromagnetic valve of the first water side circuit. The valve 21 and the water outlet 37, the accumulator 8 are connected to the first throttle valve 4 and the second throttle valve 50, the first throttle valve 4 is connected to the refrigeration evaporator 5 through the solenoid valve 25 of the fifth refrigerant circuit, and the first water The side circuit solenoid valve 21 is connected to the second water side circuit solenoid valve 22, the water inlet 36 is connected to the first water side circuit solenoid valve 21 and the second water side circuit solenoid valve 22, and the refrigeration evaporator 5 is respectively connected to the gas-liquid separator 7 , the second water side circuit solenoid valve 22, the third water side circuit solenoid valve 23, the fifth refrigerant side solenoid valve 25, the third water side circuit solenoid valve 23 is connected to the water outlet 37, and the gas-liquid separator 7 is connected to the compressor 1 . the

The fresh water preparation system includes a coil condenser 2, a second air duct 18, an air inlet preheating heat exchanger 9, a spray chamber 10, a water baffle 16, an evaporator 6 for desalination, and a first solenoid valve 19. The device 2 includes an outer cylinder and a coil group. The coils of the coil condenser 2 are respectively connected to the compressor 1 and the liquid receiver 8. The outer cylinder can be round or square, and the upper part of the coil condenser 2 Connected to the air outlet, the air outlet is provided with a water baffle 17 and a fan 14, the suction of the fan can reduce the internal pressure of the coil condenser and promote the evaporation of water in the seawater, and there is an air regulating valve 24 in the air outlet to adjust the two The air volume of the first air duct 15 and the second air duct 18 of the road air duct, the air intake preheating heat exchanger 9, the spray chamber 10, the desalination evaporator 6, and the spray chamber 10 are connected successively in the second air duct 18. There are water baffles 16 on both sides, and the lower part of the spray chamber 10 is provided with a seawater tank 46, which is connected to the seawater outlet 47, the second air duct 18 is connected to the air outlet 48, and the coil condenser 2 is placed in the tank tank 43 Inside, the water tank 43 is connected to the air inlet preheating heat exchanger 9 through the water pump 13, and the evaporator 6 for desalination is a finned tube type or a plate fin type heat exchanger, and the air inlet and the air outlet are connected to the second air duct 18 Connect, the evaporator 6 for desalination is connected with the second throttle valve 50 and the gas-liquid separator 7, the bottom of the evaporator 6 for desalination is provided with a fresh water tank 44, and the fresh water tank 44 is connected with the desalinated water outlet 38, and is used for storing and separating out fresh water. When the fins are parallel to the wind inlet direction, they are perpendicular to the fresh water tank 44 . The spray chamber 10 is connected to the seawater inlet 39 through the first solenoid valve 19 and the water pump 12, and the air inlet preheating heat exchanger 9 is provided with a seawater outlet 42, and the air inlet preheating heat exchanger 9 is a finned tube heat exchanger. The direction of the fins is parallel to the airflow direction. the

The hot water preparation system includes a heat exchanger 11 for hot water production, a first air duct 15 and a second solenoid valve 20. The heat exchanger 11 for hot water production is respectively connected to the coil condenser 2 and its barrel, and the hot water A hot water tank 45 is provided at the bottom of the heat exchanger 11 for production, and the hot water tank 45 is connected with an electric auxiliary heater 49 and a hot water outlet 40 , and the heat exchanger 11 for hot water production is provided with an air outlet 41 . The seawater inlet 39 is connected to the heat exchanger 11 for hot water production through the water pump 12 and the second electromagnetic valve 20. The heat exchanger 11 for hot water production is a gas-liquid heat exchanger such as a finned tube type or a plate-fin type. When adopting the finned tube type, the direction of the fins is parallel to the airflow direction and perpendicular to the hot water tank 45 . The electric auxiliary heater 49 is turned on when the hot water outlet temperature is too low. the

The following describes the operation of the device according to the different operating seasons of the device. the

During the year-round operation, the first electromagnetic valve 19 and the second electromagnetic valve of the hot water and fresh water preparation system are opened, and the seawater is first sucked by the water pump 12 and then divided into two paths, respectively entering the heat exchanger 11 for hot water production and the spraying valve. Chamber 10, in which the seawater entering the heat exchanger 11 for hot water production exchanges heat with the water vapor from the coil condenser 2. The tube group exchanges heat, and the water vapor condenses after releasing heat to produce hot water through the electric auxiliary heater 49 to the hot water outlet 40 , and the rest is discharged to the air outlet 41 . In the fresh water preparation system, another way of water vapor from the coil condenser 2 enters the air intake preheating heat exchanger 9 through the second air duct 18, and the waste heat of seawater from the coil condenser 2 is used to heat the water vapor containing Enter the air to increase its temperature so that it can absorb more water after entering the spray chamber 10, and then exchange heat with the low-temperature refrigerant through the desalinated water evaporator 6, and the contained water is separated out to obtain fresh water that falls into the water tank 44 and passes through the desalinated water evaporator 6. The desalinated water outlet 38 is utilized, and the remaining air is discharged by the air outlet 48 . the

Summer cooling season: In the heat pump system, the solenoid valve 26 of the sixth refrigerant circuit is closed, the solenoid valve 25 of the fifth refrigerant circuit is opened, the solenoid valve 21 of the first water side circuit is closed, the solenoid valve 22 of the second water side circuit and the third water side circuit are closed. The solenoid valve 23 of the side circuit is opened, and all the coils in the coil condenser 2 are put into operation. The high-pressure and high-temperature refrigerant gas from the compressor 1 enters the coil condenser 2, exchanges heat with seawater in the coil condenser 2, and condenses into a high-pressure liquid, then enters the liquid receiver 8, and then throttles through the first throttle valve 4, The low-temperature and low-pressure gas-liquid two-phase refrigerant enters the refrigeration evaporator 5, and the other high-pressure liquid enters the desalination evaporator 6 after being throttled by the second throttle valve 50. After the refrigerant absorbs heat in the two evaporators Become low-pressure superheated gas, after confluence, pass through the gas-liquid separator 7 and enter the compressor 1 for compression, then repeat the above process. During operation, there is no refrigerant flow in the heating condenser 3, and the refrigerant in the coil condenser 2 exchanges heat with seawater to generate water vapor, which passes through the water baffle 17 and passes through the air regulating valve along the air duct under the action of the fan 14 24 is divided into two paths respectively through the first air duct 15 and the second air duct 18 to enter the hot water production heat exchanger 11 and the air intake preheating heat exchanger 9, and the seawater is sent to the air intake preheating heat exchanger 9 by the water pump 13 after absorbing heat. The heat exchanger 9 heats the evaporator into the air. Refrigeration water enters the refrigeration evaporator 5 through the water inlet 36 and the solenoid valve 22 to exchange heat with the refrigerant. After the water temperature drops, it is sent to the user through the solenoid valve 23 and the water outlet 37. In the refrigeration evaporator, the refrigerant and water form a reverse heat exchange , can effectively increase the cooling capacity. the

Winter heating season: In the heat pump system, the sixth refrigerant solenoid valve 26 is turned on, the fifth refrigerant solenoid valve 25 is turned off, the first water side solenoid valve 21 is turned on, the second water side solenoid valve 22, the third water side solenoid valve 23 is closed, and part of the coil group in the coil condenser 2 is running. The high-pressure and high-temperature refrigerant gas from the compressor 1 is divided into two paths and enters the coil condenser 2 and the heating condenser 3 respectively. In the two condensers, the refrigerant releases heat and condenses into a high-pressure liquid, then enters the liquid receiver 8 and Throttled by the second throttle valve 50, it becomes a low-temperature and low-pressure gas-liquid two-phase refrigerant and then enters the evaporator 6 for desalination. After absorbing heat in the evaporator, the refrigerant becomes a low-pressure superheated gas and passes through the gas-liquid separator 7. After entering the compressor to compress, repeat the above process. During operation, there is no refrigerant flow in the refrigerating evaporator 5. In the coil condenser 2, the refrigerant exchanges heat with seawater to generate water vapor. After passing through the water baffle 17, it is driven by the fan 14 to divide into The two channels enter the heat exchanger 11 for hot water production and the air intake preheating heat exchanger 9 through the first air duct 15 and the second air duct 18 respectively, and the seawater is sent to the air intake preheating exchanger 9 by the water pump 13 after absorbing heat. Heater 9 heats the evaporator into the air. The heating water enters the heating condenser 3 through the water inlet 36 and the first water-side solenoid valve 21 to exchange heat with the refrigerant. After the water temperature rises, it is sent to the user through the water outlet 37. The water forms reverse heat exchange, which can effectively increase the heating capacity. the

Embodiment 2: Since the heating condenser and the refrigeration evaporator are not used at the same time, in order to reduce equipment investment, the present invention uses a heat exchanger as a refrigeration evaporator and a heating condenser respectively in the cooling and heating seasons. A new type of seawater Heat pump cooling, heating, hot water and fresh water quadruple supply system (see Figure 2), including heat pump system, fresh water preparation system and hot water preparation system. the

The heat pump system includes a compressor 1, a heat exchanger (heating condenser/refrigerating evaporator) 35, a first throttle valve 4, a gas-liquid separator 7, a liquid receiver 8, a first refrigerant circuit solenoid valve 27, Second refrigerant circuit solenoid valve 28, third refrigerant circuit solenoid valve 29, fourth refrigerant circuit solenoid valve 30, fourth water side circuit solenoid valve 31, fifth water side circuit solenoid valve 32, sixth water side circuit Solenoid valve 33, solenoid valve 34 of the seventh water side circuit, heat exchanger 35 can be in the form of plate heat exchanger, shell-and-tube heat exchanger, heat pipe heat exchanger, etc. Compressor 1 passes through the solenoid valve 27 of the first refrigerant circuit 1. The second refrigerant circuit solenoid valve 28 is connected to the gas-liquid separator 7, and the gas-liquid separator 7 is connected to the compressor 1. The pipeline connection between the first refrigerant circuit solenoid valve 27 and the second refrigerant circuit solenoid valve 28 is changed. One refrigerant interface of the heat exchanger 35 and the other refrigerant interface of the heat exchanger 35 are respectively connected to the solenoid valve 29 of the third refrigerant circuit and the solenoid valve 30 of the fourth refrigerant circuit, and the solenoid valve 29 of the third refrigerant circuit is connected to the liquid storage The reservoir 8 is connected to the first throttle valve 4 and the second throttle valve 50 . The water inlet and outlet of the heat exchanger 35 are connected by a water side circuit solenoid valve group, which is composed of a fourth water side circuit solenoid valve 31, a fifth water side circuit solenoid valve 32, a sixth water side circuit solenoid valve group, and a water side circuit solenoid valve group. The loop formed by the water side circuit solenoid valve 33 and the seventh water side circuit solenoid valve 34 is connected to a water interface of the heat exchanger 35 between the fourth water side circuit solenoid valve 31 and the fifth water side circuit solenoid valve 32. The sixth water side circuit solenoid valve 33 and the seventh water side circuit solenoid valve 34 are connected to another water interface of the heat exchanger 35, the sixth water side circuit solenoid valve 33 and the fifth water side circuit solenoid valve 32 are connected to the water inlet 36, the fourth water side circuit solenoid valve 31 and the seventh water side circuit solenoid valve 34 are both connected to the water outlet 37. the

The structure of the fresh water preparation system is basically the same as in Embodiment 1, the difference is that the pipeline between the third refrigerant circuit solenoid valve 29 and the liquid receiver 8 is connected to the coil of the coil condenser 2, and the first throttle valve 4 is connected to the coil of the coil condenser 2. The fourth refrigerant circuit solenoid valve 30 is connected. the

The structure of the hot water preparation system is basically the same as in Embodiment 1. the

The following describes the operation of the device according to the different operating seasons of the device. the

During the year-round operation, the first electromagnetic valve 19 and the second electromagnetic valve 20 of the hot water preparation system are opened, and the seawater is first sucked by the water pump 12 and then divided into two paths to enter the heat exchanger 11 for hot water production and the spray chamber respectively. 10. The seawater entering the heat exchanger 11 for hot water production exchanges heat with the water vapor from the coil condenser 2. The seawater enters the coil condenser 2 after preheating, and the water vapor condenses after releasing heat to produce hot water , and the rest are discharged to the air outlet 41. In the fresh water preparation system, part of the water vapor coming out of the coil condenser 2 enters the air intake preheating heat exchanger 9 through the second air channel 18, and uses the waste heat of seawater from the coil condenser 2 to heat the intake air containing water vapor, Increase its temperature so that it can absorb more water after entering the spray chamber 10, and then exchange heat with the low-temperature refrigerant through the desalination evaporator 6, and the precipitated water falls into the water tank 44 and utilizes fresh water through the desalinated water outlet 38, and the remaining The air is discharged from the air outlet 48 . the

Summer cooling season: In the heat pump system, the solenoid valve 27 of the first refrigerant circuit and the solenoid valve 29 of the third refrigerant circuit are closed, the solenoid valve 28 of the second refrigerant circuit and the solenoid valve 30 of the fourth refrigerant circuit are opened, and the fourth water side The loop solenoid valve 31 and the sixth water side loop solenoid valve 33 are closed, the fifth water side loop solenoid valve 32 and the seventh water side loop solenoid valve 34 are turned on, and all the coils in the coil condenser 2 are put into operation. The high-pressure and high-temperature refrigerant gas from the compressor 1 enters the coil condenser 2, exchanges heat with seawater in the condenser and condenses to form a high-pressure liquid, and then enters the liquid receiver 8. It is divided into two paths, and one path is throttled by the first throttle valve 4. , becomes a low-temperature and low-pressure gas-liquid two-phase refrigerant, enters the heat exchanger 35 through the electromagnetic valve 30 of the fourth refrigerant circuit, and enters the evaporator 6 for desalination through the second throttling valve 50 through the second throttling valve. After absorbing heat in the first evaporator, it becomes a low-pressure superheated gas, and one path from the heat exchanger 35 passes through the second refrigerant circuit solenoid valve 28 and merges with the other path from the evaporator 6 for desalination, passes through the gas-liquid separator 7, and enters the compressor. 1 Repeat the above process after compression. During operation, the refrigerant in the coil condenser 2 exchanges heat with sea water to generate water vapor, which is driven by the fan 14 after passing through the water baffle 17 and divided into two paths to enter the heat along the first air channel 15 and the second air channel 18 respectively. The heat exchanger 11 and the air inlet preheating heat exchanger 9 are used for water production, and the seawater is sent to the air inlet preheating heat exchanger 9 by the water pump 13 to heat the evaporator after absorbing heat in the water tank 43 . The cooling water enters the heat exchanger 35 through the water inlet 36 and the fifth water side circuit solenoid valve 32 to exchange heat with the refrigerant. After the water temperature drops, it is sent to the user through the seventh water side circuit solenoid valve 34 and the water outlet 37. The side valve switch makes the refrigerant and water in the refrigeration evaporator form a reverse heat exchange, effectively increasing the cooling capacity. the

Winter heating season: In the heat pump system, the first refrigerant circuit solenoid valve 27 and the third refrigerant circuit solenoid valve 29 are opened, the second refrigerant circuit solenoid valve 28 and the fourth refrigerant circuit solenoid valve 30 are closed, and the sixth refrigerant circuit solenoid valve is closed. The side circuit solenoid valve 33 and the fourth water side circuit solenoid valve 31 are turned on, the fifth water side circuit solenoid valve 32 and the seventh water side circuit solenoid valve 34 are closed, and some coil groups in the coil condenser 2 are running. The high-pressure and high-temperature refrigerant gas from the compressor 1 is divided into two paths, one path enters the coil condenser 2, and the other path enters the heat exchanger 35 through the solenoid valve 27 of the first refrigerant circuit, and the refrigerant releases heat and condenses in the two condensers into a high-pressure liquid, one way comes out of the heat exchanger 35, passes through the third refrigerant circuit solenoid valve 29 and mixes with the other way out of the coil condenser 2, then enters the liquid receiver 8, and then passes through the second throttle valve 50 to throttle, After becoming a low-temperature and low-pressure gas-liquid two-phase refrigerant, it enters the evaporator 6 for desalination. After absorbing heat in the evaporator 6, the refrigerant becomes a low-pressure superheated gas. After passing through the gas-liquid separator 7, it enters the compressor 1 for compression and repeats the above process. . During operation, the refrigerant in the coil condenser 2 exchanges heat with sea water to generate water vapor, which is driven by the fan 14 after passing through the water baffle 17 and divided into two paths to enter the heat along the first air channel 15 and the second air channel 18 respectively. The heat exchanger 11 and the air intake preheating heat exchanger 9 are used for water production, and the seawater absorbs heat and is sent to the air intake preheating heat exchanger 9 by the water pump 13 to heat the evaporator into the air. The heating water enters the heat exchanger 35 through the water inlet 36 and the sixth water side circuit solenoid valve 33 to exchange heat with the refrigerant. After the water temperature rises, it is sent to the user through the fourth water side circuit solenoid valve 31 and the water outlet 37. Controlling the valve switch on the water side makes the refrigerant and water in the heating cooler form a reverse heat exchange, effectively increasing the heating capacity. the

Claims (8)

1. a novel sea-water heat-pump is cold, heat, hot water and fresh water tetrad feed system, it is characterized in that it comprises heat pump, fresh water preparation system and hot water preparation system, wherein heat pump comprises compressor (1), the outlet of compressor (1) connects heat exchanger by valve, heat exchanger connects reservoir (8) by valve respectively, first throttle valve (4), gas-liquid separator (7), compressor (1) and gas-liquid separator (7) are positioned at an end of heat exchanger, reservoir (8) and first throttle valve (4) are positioned at the other end of heat exchanger, the intake-outlet of heat exchanger connects water inlet (36) and delivery port (37) respectively, reservoir (8) connects first throttle valve (4) respectively, second choke valve (50), gas-liquid separator (7) connects the import of compressor (1); The fresh water preparation system comprises coil condenser (2), coil condenser (2) comprises outside cylindrical shell and coil pipe group, the coil pipe of coil condenser (2) respectively with the outlet of compressor (1), reservoir (8) connects, the cylindrical shell top of coil condenser (2) connects the exhaust passage, the air inlet place of exhaust passage is provided with water fender (17) and blower fan (14), be provided with adjusting valve (24) in the exhaust passage, adjusting valve (24) is divided into second air channel (18) and first air channel (15) with the exhaust passage, connect air intake preheating heat exchanger (9) in second air channel (18) successively, spray chamber (10), desalination evaporimeter (6), desalination connects gas-liquid separator (7) with an end of evaporimeter (6), the other end connects second choke valve (50), the both sides of spray chamber (10) are provided with water fender (16), the bottom of spray chamber (10) is provided with seawater tank (46), seawater tank (46) connects seawer outlet (47), coil condenser (2) is in cylindrical shell tank (43), cylindrical shell tank (43) links to each other with air intake preheating heat exchanger (9) by water pump (13), desalination all is connected with second air channel (18) with air outlet with evaporimeter (6) air inlet, desalination is provided with fresh water tank (44) with the bottom of evaporimeter (6), fresh water tank (44) connects desalination water outlet (38), spray chamber (10) is by first magnetic valve (19), water pump (12) is connected with sea intake (39), and air intake preheating heat exchanger (9) is provided with seawer outlet (42); The hot water preparation system comprises that hot water produces with heat exchanger (11), the air inlet that hot water is produced with heat exchanger (11) all is connected with first air channel (15) with air outlet, hot water is produced with heat exchanger (11) bottom and is established hot water tank (45), hot water tank (45) connects electric heating device (49), hot water outlet (40), hot water is produced with heat exchanger (11) and is provided with air outlet (41), sea intake (39) is by water pump (12), second magnetic valve (20) is connected with the end that hot water is produced with heat exchanger (11), and the other end that hot water is produced with heat exchanger (11) is connected with the cylindrical shell of coil condenser (2).

2. a kind of novel sea-water heat-pump according to claim 1 is cold, heat, hot water and fresh water tetrad feed system, it is characterized in that described heat pump replaces with: the outlet of compressor (1) heats condenser (3) by the connection of the 6th refrigerant loop magnetic valve (26), heat condenser (3) and connect reservoir (8) respectively, the first water side loop magnetic valve (21) and delivery port (37), reservoir (8) connects first throttle valve (4) respectively, second choke valve (50), first throttle valve (4) connects refrigerating evaporator (5) by the 5th refrigerant loop magnetic valve (25), the first water side loop magnetic valve (21) is connected in parallel with the second water side loop magnetic valve (22), the water inlet (36) and the first water side loop magnetic valve (21), the second water side loop magnetic valve (22) connects respectively, refrigerating evaporator (5) connects gas-liquid separator (7) respectively, the second water side loop magnetic valve (22), the 5th refrigerant loop magnetic valve (25), the 3rd water side loop magnetic valve (23), the 3rd water side loop magnetic valve (23) connects delivery port (37), gas-liquid separator (7) connects the import of compressor (1), second choke valve (50) is connected with evaporimeter (6) with desalination, be connected gas-liquid separator (7) after desalination is used evaporimeter (6) and refrigerating evaporator (5) is in parallel, the outlet of compressor (1) is connected with coil condenser (2).

3. a kind of novel sea-water heat-pump according to claim 2 is hot and cold, hot water and fresh water tetrad feed system, it is characterized in that described refrigerating evaporator (5) and heat condenser (3) adopting plate type heat exchanger, shell-and-tube heat exchanger or heat exchange of heat pipe.

4. a kind of novel sea-water heat-pump according to claim 1 is cold, heat, hot water and fresh water tetrad feed system, the compressor (1) that it is characterized in that described heat pump is by the first refrigerant loop magnetic valve (27), the second refrigerant loop magnetic valve (28) connects gas-liquid separator (7), pipeline between the first refrigerant loop magnetic valve (27) and the second refrigerant loop magnetic valve (28) connects the cold-producing medium interface of heat exchanger (35), another cold-producing medium interface of heat exchanger (35) connects the 3rd refrigerant loop magnetic valve (29) respectively, the 4th refrigerant loop magnetic valve (30), the 3rd refrigerant loop magnetic valve (29) connects reservoir (8), reservoir (8) connects first throttle valve (4) and second choke valve (50) respectively, connect by water side loop magnetic valve group between the water inlet of heat exchanger (35) and the delivery port, this water side loop magnetic valve group is by the 4th water side loop magnetic valve (31), the 5th water side loop magnetic valve (32), the 6th water side loop magnetic valve (33), the loop that the 7th water side loop magnetic valve (34) is formed, the water interface that connects heat exchanger (35) between the 4th water side loop magnetic valve (31) and the 5th water side loop magnetic valve (32), another water interface that connects heat exchanger (35) between the 6th water side loop magnetic valve (33) and the 7th water side loop magnetic valve (34), the 6th water side loop magnetic valve (33) is connected water inlet (36) with the 5th water side loop magnetic valve (32), and the 4th water side loop magnetic valve (31) is connected delivery port (37) with the 7th water side loop magnetic valve (34).

5. a kind of novel sea-water heat-pump according to claim 4 is hot and cold, hot water and fresh water tetrad feed system, it is characterized in that described heat exchanger (35) adopts plate type heat exchanger, shell-and-tube heat exchanger or heat exchange of heat pipe.

6. a kind of novel sea-water heat-pump according to claim 1 is hot and cold, hot water and fresh water tetrad feed system, it is characterized in that described desalination is fin tube type or plate-fin heat exchanger with evaporimeter (6), fin is parallel with the air intake direction during layout, and is vertical with fresh water tank (44).

7. a kind of novel sea-water heat-pump according to claim 1 is hot and cold, hot water and fresh water tetrad feed system, it is characterized in that described air intake preheating heat exchanger (9) is a fin-tube heat exchanger, and the fin direction is parallel with airflow direction.

8. a kind of novel sea-water heat-pump according to claim 1 is hot and cold, hot water and fresh water tetrad feed system, it is characterized in that it is fin tube type or plate-fin heat exchanger that described hot water is produced with heat exchanger (11), the fin direction is parallel with airflow direction when adopting fin tube type, and is vertical with hot water tank (45).

Images