Efficient integrated energy station system capable of supplying cold and heat

Abstract

The utility model relates to the technical field of heating and cooling equipment, and discloses a high-efficiency integrated energy station system capable of supplying cold and hot, which comprises a water-cooling cold and hot water unit, a cold and hot switching pipeline component and a high-efficiency energy tower. A pipeline and a valve are arranged in the cold and hot switching pipeline assembly and communicate with the water-cooling cold and hot water unit, the user and the efficient energy tower correspondingly, so that the functions of cooling and heating can be considered through starting and stopping of the valve, the flow direction of a medium in the pipeline is controlled, cold and hot mode switching is rapid and reliable, the misoperation risk is avoided, one machine has multiple purposes, and heat supply equipment does not need to be additionally purchased. And the system adopts a high-strength container modular design, so that the occupied area is small, the prefabricated production degree is high, and the environmental protection property is high.

Description

Technical Field

[0001] This utility model relates to the field of heating and cooling equipment technology, specifically to a high-efficiency integrated energy station system that provides both heating and cooling. Background Technology

[0002] Traditional integrated chiller plants utilize a skid-mounted modular design to integrate chiller units, water pumps, valves, and control systems into a single unit. This solves the problems of dispersed components and complex installation in traditional central air conditioning systems, significantly reducing the floor space required. Furthermore, users no longer need to purchase separate water pumps, valves, and control systems; simply connecting the water pipes allows for immediate cooling operation, saving substantial manpower, material resources, and financial investment.

[0003] However, its functional design still has the following key drawbacks: Since traditional integrated chiller stations are designed only for cooling, when users have seasonal heating needs, an additional heating subsystem, called an integrated energy station, needs to be added. This involves a large initial investment, and the separation of cooling and heating equipment leads to seasonal equipment idleness and substantial maintenance costs. Common solutions include adding gas-fired boilers or ground-source heat pump units. For example, Chinese invention patent 202410239186.X discloses a combined chiller and gas-fired equipment heating system. When using a gas-fired boiler, direct heating during the heating season is achieved by switching between chilled water and cooling water circuits in the chiller and heating chilled water using waste heat from flue gas. However, this type of solution increases the complexity and cost of the system, has low energy efficiency, high power consumption, long switching time between cooling and heating modes, and poses a risk of misoperation. It also significantly increases the footprint of the integrated energy station and generates air pollutants or greenhouse gases during operation, thus harming the ecological environment. Chinese invention patent 201710404040.6 discloses an intelligent integrated cooling and heating energy station. When using a ground source heat pump unit, the switching between cooling and heating modes is achieved by opening and closing electric valves set at the inlet and outlet of the heat exchanger. This type of solution is significantly limited by geological conditions and space, and is difficult to install and maintain, with high investment costs and long construction periods, which contradicts the original design intention of the integrated energy station. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies by providing a highly efficient integrated energy station system that supplies both cooling and heating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency integrated energy station system with both cooling and heating supply is disclosed. The integrated energy station system includes a water-cooled chiller / heater unit, a cooling / heating switching pipeline assembly, and a high-efficiency energy tower. The first end of the cooling / heating switching pipeline assembly is connected to the user, the second end is connected to the high-efficiency energy tower, and the third end is connected to the water-cooled chiller / heater unit. The water-cooled chiller / heater unit includes an evaporator and a condenser.

[0007] The cooling and heating switching pipeline assembly has eight pipeline paths, each with a valve. The valves are named valve A, valve B to valve G and valve H respectively. There are two pipeline paths forming a loop between the user and the evaporator and condenser, and two pipeline paths forming a loop between the high-efficiency energy tower and the evaporator and condenser respectively.

[0008] Preferably, valves B and C are located between the user and the condenser; valves A and D are located between the high-efficiency energy tower and the evaporator; valves E and H are located between the user and the evaporator; and valves F and G are located between the high-efficiency energy tower and the condenser.

[0009] Preferably, one end of valves A and E is connected to the inlet of the evaporator; one end of valves D and H is connected to the outlet of the evaporator; one end of valves B and F is connected to the inlet of the condenser; and one end of valves C and G is connected to the outlet of the condenser.

[0010] Preferably, a first water pump assembly is provided between the hot and cold switching pipeline assembly and the user, and the action direction of the first water pump assembly is guided from the user to the hot and cold switching pipeline assembly.

[0011] And / or, a second water pump assembly is provided between the hot and cold switching pipeline assembly and the high-efficiency energy tower, and the direction of action of the second water pump assembly is guided from the high-efficiency energy tower to the hot and cold switching pipeline assembly.

[0012] Preferably, the first pump assembly and / or the second pump assembly are variable frequency pumps.

[0013] Water-cooled chiller units can be either magnetic levitation water-cooled chiller units or screw-type water-cooled chiller units.

[0014] Preferably, the water-cooled chiller / heater unit is a magnetic levitation water-cooled chiller / heater unit, and some of these units can adjust the cooling / heating output of the integrated energy station by changing the compressor speed.

[0015] Preferably, the evaporator is a shell-and-tube type, and the condenser is a shell-and-tube type. The condenser can also be a finned type or an evaporator type.

[0016] Preferably, the valve is an electric valve.

[0017] Preferably, the water-cooled chiller / hot water unit and the hot / cold switching piping assembly are integrated into a single container. The container can also be skid-mounted or in other forms.

[0018] Preferably, the high-efficiency energy tower is installed on top of the container. The high-strength modular design of the container allows it to be placed directly outdoors or on a rooftop, with the high-efficiency energy tower positioned above the container and the water system arranged on both levels, occupying only one-third the area of ​​a traditional data center.

[0019] The beneficial effects of the high-efficiency integrated energy station system with both cooling and heating provided by this utility model are as follows:

[0020] (1) The system has both cooling and heating functions. The flow direction of the medium in the pipeline is controlled by the valve opening and closing. The switching between cooling and heating modes is fast and reliable, with no risk of misoperation. It is multi-functional and does not require additional heating equipment.

[0021] (2) The high-strength container modular design is adopted, and the water system is arranged on the upper and lower levels, which greatly reduces the floor space compared with the traditional machine room and provides a large selection of placement options; the system can be prefabricated, shortening the on-site installation cycle;

[0022] (3) The system does not generate air pollutants or greenhouse gases during operation, making it highly environmentally friendly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a highly efficient integrated energy station system that provides both cooling and heating. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] A high-efficiency integrated energy station system with both cooling and heating supply is disclosed. The integrated energy station system includes a water-cooled chiller / heater unit 1, a cooling / heating switching piping assembly 4, a first water pump assembly 5, a second water pump assembly 6, and a high-efficiency energy tower 7. The water-cooled chiller / heater unit 1, the cooling / heating switching piping assembly 4, the first water pump assembly 5, and the second water pump assembly 6 are integrated into a container 8, and the high-efficiency energy tower 7 is mounted on top of the container 8.

[0027] The first end of the hot / cold switching piping assembly 4 is connected to user 9, the second end is connected to the high-efficiency energy tower 7, and the third end is connected to the water-cooled chiller / hot water unit 1. The water-cooled chiller / hot water unit 1 is a magnetic levitation water-cooled chiller / hot water unit, including an evaporator 2 and a condenser 3, both of which are shell-and-tube type. The hot / cold switching piping assembly 4 includes eight pipe paths, each equipped with an electric valve, named sequentially as electric valve A, electric valve B through electric valve G, and electric valve H. The hot / cold switching piping assembly 4 is connected to the evaporator 2 and the condenser 3 through these pipes. The electric valves are controlled by electrical signals to open and close.

[0028] The first water pump assembly 5 is installed on the pipeline between the hot / cold switching pipeline assembly 4 and the user 9, and the direction of action of the first water pump assembly 5 is from the user 9 to the hot / cold switching pipeline assembly 4. The second water pump assembly 6 is installed on the pipeline between the hot / cold switching pipeline assembly 4 and the high-efficiency energy tower 7, and the direction of action of the second water pump assembly 6 is from the high-efficiency energy tower 7 to the hot / cold switching pipeline assembly 4. Both the first water pump assembly 5 and the second water pump assembly 6 are variable frequency pumps, and the flow rate of the working fluid in the system pipeline can be adjusted by changing the speed.

[0029] In this embodiment, one end of electric valve A is connected to the high-efficiency energy tower 7, and the other end is connected to the inlet 21 of evaporator 2; one end of electric valve B is connected to user 9, and the other end is connected to the inlet 31 of condenser 3; one end of electric valve C is connected to user 9, and the other end is connected to the outlet 32 ​​of condenser 3; one end of electric valve D is connected to the high-efficiency energy tower 7, and the other end is connected to the outlet 22 of evaporator 2; one end of electric valve E is connected to user 9, and the other end is connected to the inlet 21 of evaporator 2; one end of electric valve F is connected to the high-efficiency energy tower 7, and the other end is connected to the inlet 31 of condenser 3; one end of electric valve G is connected to the high-efficiency energy tower 7, and the other end is connected to the outlet 32 ​​of condenser 3; one end of electric valve H is connected to user 9, and the other end is connected to the outlet 22 of evaporator 2.

[0030] The high-efficiency integrated energy station system with both cooling and heating supply has two working modes, and the operating principle is as follows.

[0031] Table 1 Valve switching logic under different operating modes

[0032] Work mode Open closure Heating mode A, B, C, D E, F, G, H Cooling mode E, F, G, H A, B, C, D

[0033] 1. Heating mode

[0034] Electric valves A, B, C, and D in the hot / cold switching piping assembly 4 are open, while electric valves E, F, G, and H are closed.

[0035] After the water-cooled chiller and hot water unit 1 is put into operation, the return water from the user 9 side, driven by the first water pump assembly 5, flows into the condenser 3 inlet 31 through the electric valve B of the chiller-heat switching pipeline assembly 4. The high-temperature hot water formed after absorbing heat flows out through the condenser 3 outlet 32, and then enters the user 9 through the electric valve C of the chiller-heat switching pipeline assembly 4 to provide high-temperature hot water for the user 9.

[0036] Meanwhile, the low-temperature water in the high-efficiency energy tower 7, driven by the second water pump assembly 6, flows into the evaporator 2 inlet 21 through the electric valve A in the cold and heat switching pipeline 4. After absorbing heat as a heat source, it flows out from the evaporator 2 outlet 22 and flows back into the high-efficiency energy tower 7 through the electric valve D in the cold and heat switching pipeline assembly 4. After being heated in the high-efficiency energy tower 7, it is recycled to continue to provide low-temperature water to the evaporator 2.

[0037] 2. Cooling mode

[0038] Electric valves A, B, C, and D in the hot / cold switching piping assembly 4 are closed, while electric valves E, F, G, and H are open.

[0039] After the water-cooled chiller and hot water unit 1 is put into operation, the return water from the user 9 side, driven by the first water pump assembly 5, flows into the evaporator 2 inlet 21 through the electric valve E in the chiller-heat switching pipeline assembly 4. The low-temperature chilled water formed after heat release flows out from the evaporator 2 outlet 22 and enters the user 9 through the electric valve H in the chiller-heat switching pipeline assembly 4, providing low-temperature chilled water to the user 9.

[0040] Meanwhile, the low-temperature cooling water in the high-efficiency energy tower 7, driven by the second water pump assembly 6, flows into the condenser 3 inlet 31 through the electric valve F in the cold and heat switching pipeline assembly 4. After absorbing heat, it carries away the heat from the high-temperature and high-pressure refrigerant in the water-cooled chiller unit 1, forming high-temperature cooling water. It flows out from the condenser 3 outlet 32, passes through the cold and heat switching pipeline assembly 4 through the valve G, and returns to the high-efficiency energy tower 7. After being cooled in the high-efficiency energy tower 7, it is recycled to continue providing low-temperature cooling water to the condenser 3.

[0041] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A high efficiency integrated energy station system for combined heat and power, characterized in that, The integrated energy station system includes a water-cooled chiller / heater unit (1), a chiller / heater switching piping assembly (4), and a high-efficiency energy tower (7): the first end of the chiller / heater switching piping assembly (4) is connected to the user (9), the second end is connected to the high-efficiency energy tower (7), and the third end is connected to the water-cooled chiller / heater unit (1); the water-cooled chiller / heater unit (1) includes an evaporator (2) and a condenser (3). The hot and cold switching pipeline assembly (4) has eight pipeline paths, and each pipeline path has a valve. The valves are named valve A, valve B ~ valve G and valve H in sequence. Among them, two pipeline paths are set between the user (9) and the evaporator (2) and the condenser (3) to form a loop, and two pipeline paths are set between the high-efficiency energy tower (7) and the evaporator (2) and the condenser (3) to form a loop.

2. The combined cooling and heating high efficiency integrated energy station system of claim 1, wherein, Valves B and C are located between the user (9) and the condenser (3); Valves A and D are located between the high-efficiency energy tower (7) and the evaporator (2); Valves E and H are located between the user (9) and the evaporator (2); Valves F and G are located between the high-efficiency energy tower (7) and the condenser (3).

3. The combined cooling and heating high efficiency integrated energy station system of claim 2, wherein, One end of valves A and E is connected to the inlet (21) of evaporator (2); one end of valves D and H is connected to the outlet (22) of evaporator (2); one end of valves B and F is connected to the inlet (31) of condenser (3); and one end of valves C and G is connected to the outlet (32) of condenser (3).

4. The high-efficiency integrated energy station system with both cooling and heating supply according to claim 1, characterized in that, A first water pump assembly (5) is provided between the hot and cold switching pipeline assembly (4) and the user (9), and the action direction of the first water pump assembly (5) is guided from the user (9) to the hot and cold switching pipeline assembly (4). And / or, a second water pump assembly (6) is provided between the hot and cold switching pipeline assembly (4) and the high-efficiency energy tower (7), and the action direction of the second water pump assembly (6) is guided from the high-efficiency energy tower (7) to the hot and cold switching pipeline assembly (4).

5. The combined cooling and heating high efficiency integrated energy station system of claim 4, wherein, The first water pump assembly (5) and / or the second water pump assembly (6) are variable frequency water pumps.

6. The combined cooling and heating high efficiency integrated energy station system of claim 1, wherein, The water-cooled chiller / hot water unit (1) is a magnetic levitation water-cooled chiller / hot water unit.

7. The combined heating and power high efficiency integrated energy plant system of claim 1, wherein, The evaporator (2) is a shell-and-tube type, and the condenser (3) is a shell-and-tube type.

8. The combined cooling and heating high efficiency integrated energy station system of claim 1, wherein, The valve is an electric valve.

9. A high-efficiency integrated energy station system for both cooling and heating as described in claim 1, characterized in that, The water-cooled chiller and hot water unit (1) and the hot and cold switching pipeline assembly (4) are integrated into a container (8).

10. The combined cooling and heating high efficiency integrated energy station system of claim 9, wherein, The high-efficiency energy tower (7) is installed on top of the container (8).

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