Phosgene, gas and electricity complementary and synergetic refrigerating system

Abstract

The invention discloses a phosgene-gas-electricity complementary and collaborative refrigerating system which comprises an absorption refrigerating unit used for being connected with a refrigerating space so as to refrigerate the refrigerating space; the compression type refrigerating unit is respectively connected with the refrigerating space and the mains supply pipe network so as to refrigerate the refrigerating space; the light energy heat source assembly is connected with the absorption type refrigerating unit and is used for supplying a heat source to the absorption type refrigerating unit through solar energy; the gas power generation assembly is connected with the gas pipe network, the absorption type refrigerating unit and the compression type refrigerating unit. Through phosgene-gas-electricity complementary cooperation, fusion of solar energy, gas and electric power is achieved, the absorption type refrigerating unit and the compression type refrigerating unit are integrally applied, gradient utilization of multiple energy sources is achieved, and the overall energy utilization efficiency is improved; through regulation and control, the gas power generation assembly and the light energy heat source assembly are used for providing heat energy in the peak electricity period; and the off-peak electricity period is switched to electric power supply, so that the influence of peak-valley electricity price difference on the system is avoided, and the energy supply is more balanced.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration systems, and in particular to a refrigeration system in which phosgene and electricity are complementarily coordinated. Background Art

[0002] Refrigeration and air conditioning, which accounts for 40%-60% of the energy consumption of public buildings, has become an important reason for the shortage of electricity resources in the southern region in summer. With the vigorous promotion of energy conservation and emission reduction, solving the energy consumption problem has become one of the most urgent issues. Therefore, reducing the energy consumption of the air conditioning system and improving its working efficiency can meet the needs of sustainable development of society while alleviating the current energy consumption problem.

[0003] In the existing technology, air conditioning refrigeration systems consume a lot of energy when cooling the refrigerated space, especially in summer, which puts great pressure on power resources. During the peak period of energy demand, traditional refrigeration systems require a large amount of power supply, while during the trough period, power resources cannot be used efficiently, resulting in energy waste, which leads to an imbalance in energy supply.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The technical problem to be solved by the present application is to provide a refrigeration system with complementary cooperation between phosgene and electricity in view of the above-mentioned defects of the prior art, aiming to solve the problem of unbalanced power energy supply in the existing refrigeration system.

[0006] The technical solutions adopted by this application to solve the technical problems are as follows:

[0007] A refrigeration system with complementary cooperation between phosgene and electricity, comprising:

[0008] An absorption refrigeration unit, used to be connected to a refrigeration space to refrigerate the refrigeration space;

[0009] A compression refrigeration unit is connected to the refrigeration space and the mains network respectively to cool the refrigeration space;

[0010] A solar heat source assembly is connected to the absorption refrigeration unit and is used to supply heat source to the absorption refrigeration unit through solar energy;

[0011] The gas power generation assembly is respectively connected to the gas pipeline network, the absorption refrigeration unit and the compression refrigeration unit.

[0012] The refrigeration system with complementary cooperation of phosphine, gas and electricity, wherein the light energy heat source component comprises:

[0013] Solar thermal panels;

[0014] The heat storage tank is connected to the solar heat collecting panel and the absorption refrigeration unit respectively.

[0015] The phosgene-electricity complementary refrigeration system further comprises:

[0016] The first heat exchanger; the primary side of the first heat exchanger is connected to the gas power generation component, and the secondary side of the first heat exchanger is respectively connected to the solar heat source component and the absorption refrigeration unit.

[0017] The phosgene-electricity complementary refrigeration system, wherein the compression refrigeration unit comprises:

[0018] A compressor is connected to the mains network and the gas power generation assembly respectively;

[0019] a condenser connected to the compressor;

[0020] a throttle valve connected to the condenser;

[0021] The evaporator is connected to the throttle valve and the compressor respectively to form a refrigerant circulation loop.

[0022] The phosgene-electricity complementary refrigeration system further comprises:

[0023] A liquid storage tank, located between the condenser and the throttle valve, and connected to the condenser;

[0024] The second heat exchanger is located between the liquid storage tank and the throttle valve; the primary side of the second heat exchanger is connected to the liquid storage tank and the throttle valve respectively, and the secondary side of the second heat exchanger is connected to the absorption refrigeration unit.

[0025] The phosgene-electricity complementary refrigeration system further comprises:

[0026] a first three-way valve; an inlet of the first three-way valve is connected to the absorption refrigeration unit, and two outlets of the first three-way valve are respectively connected to the secondary side of the second heat exchanger and the refrigeration space;

[0027] The first temperature sensor is arranged between the second heat exchanger and the throttle valve.

[0028] The phosgene-electricity complementary refrigeration system further comprises:

[0029] A cooling water tower is connected to the condenser.

[0030] The phosgene-electricity complementary refrigeration system further comprises:

[0031] The third heat exchanger; the primary side of the third heat exchanger is respectively connected to the secondary side of the second heat exchanger and the absorption refrigeration unit; the secondary side of the third heat exchanger is connected to the cooling water tower.

[0032] In the phosgene-electricity complementary refrigeration system, the secondary side of the third heat exchanger is also connected to the gas power generation component, the condenser, and the absorption refrigeration unit respectively.

[0033] The phosgene-electricity complementary refrigeration system further comprises:

[0034] a second three-way valve; an inlet of the second three-way valve is connected to the secondary side of the second heat exchanger, and two outlets of the second three-way valve are respectively connected to the primary side of the third heat exchanger and the absorption refrigeration unit;

[0035] The second temperature sensor is arranged between the cooling water tower and the third heat exchanger.

[0036] Beneficial effects: In this application, the effective integration of solar energy, gas, and electricity is achieved through the complementary synergy of light, gas, and electricity, and the absorption refrigeration unit and the compression refrigeration unit are integrated and applied, so that multiple energy sources can be used in a cascade manner, thereby improving the overall energy utilization efficiency of the refrigeration system with complementary synergy of light, gas, and electricity. Through intelligent regulation, during peak power periods, the gas power generation component and the solar energy heat source component are used to provide thermal energy; and during valley power periods, the power supply mode is switched to the valley power supply mode to provide a stable heat source, avoiding the impact of peak and valley electricity price differences on the system, thereby optimizing energy utilization, reducing energy waste, and making energy supply more balanced.

[0037] At the same time, by combining the gas power generation component with the solar energy heat source component, the stability of the refrigeration system is enhanced. Especially in the case of insufficient solar energy, the gas power generation component can provide a continuous heat source to ensure stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structural state of the refrigeration system of the phosgene-electricity complementary cooperation in the gas mode of the present application;

[0039] Figure 2 It is a schematic diagram of the overall structural state of the refrigeration system of phosgene-electricity complementary cooperation in the electric mode of the present application;

[0040] Figure 3 It is a functional principle block diagram of the refrigeration system with complementary cooperation between phosgene and electricity described in this application. DETAILED DESCRIPTION

[0041] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0042] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with those in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0043] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0044] The present application provides a refrigeration system in which phosgene and electricity complement each other. Figure 1 and Figure 2 As shown, the photovoltaic-electricity complementary refrigeration system includes an absorption refrigeration unit 4, a compression refrigeration unit 100, a solar heat source component and a gas power generation component 200; the absorption refrigeration unit 4 is used to be connected to a refrigeration space 24 to refrigerate the refrigeration space 24; the compression refrigeration unit 100 is respectively connected to the refrigeration space 24 and the mains network 25 to refrigerate the refrigeration space 24; the solar heat source component is connected to the absorption refrigeration unit 4, and is used to supply heat source to the absorption refrigeration unit 4 through solar energy; the gas power generation component 200 is respectively connected to the gas network 22, the absorption refrigeration unit 4 and the compression refrigeration unit 100.

[0045] Specifically, the compression refrigeration unit 100 and the absorption refrigeration unit 4 in the present application are both connected to the refrigeration space 24, so as to provide cooling for the refrigeration space 24, so as to improve the refrigeration efficiency of the refrigeration space 24. The heat source of the compression refrigeration unit 100 is supplied by the light energy heat source component, the gas power generation component 200 can supply energy to the compression refrigeration unit 100 and the absorption refrigeration unit 4 at the same time, and the compression refrigeration unit 100 can also be powered by the mains network 25 to realize the driving of the compression refrigeration unit 100.

[0046] It can be seen that in this application, the effective integration of solar energy, gas, and electricity is achieved through the complementary coordination of light, gas, and electricity, and the absorption refrigeration unit 4 and the compression refrigeration unit 100 are integrated and applied, so that multiple energy sources can be used in a cascade manner, thereby improving the overall energy utilization efficiency of the refrigeration system with complementary coordination of light, gas, and electricity. Through intelligent regulation, during peak power periods, the gas power generation component 200 and the light energy heat source component are used to provide thermal energy; and during valley power periods, the power supply mode is switched to the valley power supply mode to stabilize the heat source supply and avoid the impact of peak and valley electricity price differences on the system, thereby optimizing energy utilization, reducing energy waste, and making energy supply more balanced.

[0047] At the same time, by combining the gas power generation component 200 with the solar energy heat source component, the stability of the refrigeration system is enhanced. Especially in the case of insufficient solar energy, the gas power generation component 200 can provide a continuous heat source to ensure stable operation of the system.

[0048] The light energy heat source assembly comprises a solar heat collecting panel 1 and a hot water storage tank 3, and the hot water storage tank 3 is connected to the solar heat collecting panel 1 and the absorption refrigeration unit 4 respectively.

[0049] Specifically, the heat storage tank 3 is a container for storing hot water or hot liquid, which can store the heat absorbed by the solar thermal collector 1 under daytime white light conditions. The absorption refrigeration unit 4 is a device that absorbs heat through an absorbent (such as lithium bromide solution) and drives the refrigeration process; in order to drive the refrigeration process of the absorption refrigeration unit 4, a certain high-temperature heat source is required, and the solar thermal collector 1 provides heat after absorbing solar energy. After being stored in the heat storage tank 3 during the day, it can be supplied to the absorption refrigeration unit 4 when needed, ensuring that the absorption refrigeration unit 4 can continuously and stably provide refrigeration.

[0050] The solar heat source assembly can minimize the demand for external energy by the absorption refrigeration unit 4, and can make full use of renewable energy during the operation of the system, thereby improving the energy efficiency of the refrigeration system with complementary synergy between solar energy and electricity, and reducing energy consumption and operating costs.

[0051] The refrigeration system of complementary cooperation between phosphogas and electricity also includes a first heat exchanger 6; the primary side of the first heat exchanger 6 is connected to the gas power generation component 200, and the secondary side of the first heat exchanger 6 is connected to the solar energy heat source component and the absorption refrigeration unit 4 respectively.

[0052] Specifically, the first heat exchanger 6 is arranged between the gas power generation component 200 and the hot water storage tank 3 and the absorption refrigeration unit 4, the inlet of the secondary side of the first heat exchanger 6 is connected to the absorption refrigeration unit 4, and the outlet of the secondary side of the first heat exchanger 6 is connected to the hot water storage tank 3. The gas power generation component 200 generates a large amount of waste heat during operation, which is usually discharged in the form of low-temperature hot water or hot flue gas; placing the first heat exchanger 6 between the hot water storage tank 3 and the gas power generation component 200 can recover the waste heat of the gas power generation component 200 and transfer it to the water in the hot water storage tank 3. The waste heat of the gas power generation component 200 is transferred to the hot water storage tank 3 through the first heat exchanger 6, and the hot water storage tank 3 can serve as a stable heat source for the absorption refrigeration unit 4; through this waste heat recovery, the system can reduce the demand for external heat sources, thereby improving the overall energy utilization efficiency and reducing energy waste.

[0053] It can be seen that in the present application, when the gas-fired power generation component 200 is running, the excess heat can be transferred to the water in the water storage tank 3 through the first heat exchanger 6, thereby ensuring that the system has sufficient heat source support during peak power consumption periods (peak power periods); during off-peak periods of municipal power, the system can rely on the heat stored in the water storage tank 3 to drive the absorption refrigeration unit 4, thereby avoiding dependence on the gas-fired power generation component 200. This flexible energy allocation mechanism improves the operational flexibility and stability of the phosgene-electricity complementary refrigeration system.

[0054] The compression refrigeration unit 100 includes a compressor 15, a condenser 9, a throttle valve 13 and an evaporator 14; the compressor 15 is connected to the mains network 25 and the gas power generation component 200 respectively, the condenser 9 is connected to the compressor 15, the throttle valve 13 is connected to the condenser 9, and the evaporator 14 is connected to the throttle valve 13 and the compressor 15 respectively, to form a refrigerant circulation loop.

[0055] Specifically, the compressor 15 is directly driven by the electric energy generated by the gas power generation assembly 200 or the mains power network 25. The compressor 15, the condenser 9, the throttle valve 13 and the evaporator 14 are connected in series in sequence to form a refrigerant circulation loop; the evaporator 14 is connected to the refrigeration space 24 to provide cooling for the refrigeration space 24. The refrigerant becomes steam after passing through the compressor 15, then enters the condenser 9 and is cooled by the condenser 9, and then enters the throttle valve 13 to reduce the pressure. The evaporator 14 exchanges heat with the refrigerant and becomes superheated steam, which then flows back to the compressor 15 for circulation.

[0056] The phosgene-electricity complementary refrigeration system also includes a liquid storage tank 10 and a second heat exchanger 11; the liquid storage tank 10 is located between the condenser 9 and the throttle valve 13, and is connected to the condenser 9; the second heat exchanger 11 is located between the liquid storage tank 10 and the throttle valve 13; the primary side of the second heat exchanger 11 is respectively connected to the liquid storage tank 10 and the throttle valve 13, and the secondary side of the second heat exchanger 11 is connected to the absorption refrigeration unit 4.

[0057] Specifically, the refrigerant of the compression refrigeration unit 100 enters the liquid storage tank 10 and the second heat exchanger 11 in sequence from the condenser 9, and after heat exchange with the absorption refrigeration unit 4 in the second heat exchanger 11, passes through the throttle valve 13 and the evaporator 14 in sequence, and flows back to the compressor 15.

[0058] The core function of the second heat exchanger 11 is to supercool the condensed refrigerant. Supercooling is the process of cooling the refrigerant to a temperature below the saturation temperature so that it remains in a pure liquid state before throttling; the chilled water connected to the absorption refrigeration unit 4 provides a low-temperature heat source for the second heat exchanger 11. Through the heat exchange of the second heat exchanger 11, the refrigerant entering the throttle valve 13 is further cooled to reach a deeper supercooling state. Through deep supercooling, the cooling capacity of the refrigerant after entering the throttle valve 13 is increased, thereby improving the overall refrigeration effect and efficiency of the compression refrigeration unit 100.

[0059] At the same time, by connecting the chilled water of the absorption refrigeration unit 4, the compression refrigeration unit 100 can obtain higher refrigeration capacity with lower energy consumption, reducing the total energy consumption of the entire refrigeration system; this synergistic utilization of energy can significantly reduce the carbon emissions of the system, help achieve energy conservation and emission reduction goals, and meet the technical requirements of environmental protection and energy conservation. The second heat exchanger 11 has a supercooling effect on the refrigerant in the compression refrigeration unit 100 after heat exchange with the absorption refrigeration unit 4, so that the refrigerant absorbs more heat in the evaporator 14, thereby reducing the load of the compressor 15; this design further reduces the operating pressure of the compressor 15, which helps to extend the service life of the compressor 15; reducing the load of the compressor 15 also indirectly reduces the maintenance requirements of the system, increasing the economy and long-term reliability of the equipment.

[0060] The refrigeration system of the phosgene-electricity complementary cooperation also includes a controller 300 (such as Figure 3 As shown), a first three-way valve 5 and a first temperature sensor 12; the inlet of the first three-way valve 5 is connected to the absorption refrigeration unit 4, and the two outlets of the first three-way valve 5 are respectively connected to the secondary side of the second heat exchanger 11 and the refrigeration space 24; the first temperature sensor 12 is arranged between the second heat exchanger 11 and the throttle valve 13.

[0061] The controller 300 is respectively connected to the gas power generation component 200, the municipal power network 25, the compression refrigeration unit 100, the absorption refrigeration unit 4, the first three-way valve 5 and the first temperature sensor 12 to control the start and stop of each component, and is used to control the opening of the first three-way valve 5 according to the detection data of the first temperature sensor 12.

[0062] Specifically, after the chilled water discharged from the absorption refrigeration unit 4 passes through the first three-way valve 5, a portion of it is supplied to the second heat exchanger 11, and a portion of it is directly supplied to the refrigeration space 24; when the first temperature sensor 12 detects that the temperature is lower than the threshold value, the controller 300 controls the opening of the valve connecting the first three-way valve 5 and the second heat exchanger 11 to decrease; conversely, when the first temperature sensor 12 detects that the temperature is higher than the threshold value, the controller 300 controls the opening of the valve connecting the first three-way valve 5 and the second heat exchanger 11 to increase.

[0063] The phosgene-electricity complementary refrigeration system further includes a cooling water tower 19 , which is connected to the condenser 9 .

[0064] Specifically, the cooling water tower 19 reduces the temperature of the cooling water through heat exchange between air and water, and then delivers the low-temperature cooling water to the condenser 9, thereby achieving preliminary supercooling and deep condensation of the refrigerant, and providing favorable conditions for the subsequent heat exchange of the refrigerant in the evaporator 14; in this way, the condenser 9 can more effectively cool the refrigerant in the compression refrigeration unit 100, cooling it into a saturated liquid or even a supercooled liquid state. Lowering the temperature of the refrigerant in the condenser 9 can reduce the load of the compressor 15, because the supercooled refrigerant can absorb more heat in the evaporator 14, thereby improving the refrigeration effect. This process reduces the energy consumption of the system and improves the refrigeration efficiency.

[0065] At the same time, the setting of the cooling water tower 19 allows the condenser 9 to better adapt to changes in the external environment temperature, especially in hot weather or when the load is large, the cooling water tower 19 can provide stable low-temperature cooling water to prevent the condenser 9 from overheating, thereby stabilizing the overall efficiency of the refrigeration system. This temperature control capability ensures that the system can continue to cool stably under various environmental conditions, enhancing the adaptability of the system.

[0066] The phosgene-electricity complementary refrigeration system also includes a third heat exchanger 20; the primary side of the third heat exchanger 20 is respectively connected to the secondary side of the second heat exchanger 11 and the absorption refrigeration unit 4; the secondary side of the third heat exchanger 20 is connected to the cooling water tower 19.

[0067] Specifically, the inlet of the primary side of the third heat exchanger 20 is connected to the outlet of the secondary side of the second heat exchanger 11, and the outlet of the primary side of the third heat exchanger 20 is connected to the absorption refrigeration unit 4; the absorption refrigeration unit 4 relies on cooling water to help condense the vapor of the working fluid, and the cooling water tower reduces the temperature of the cooling water, so that the third heat exchanger 20 between the cooling water tower 19 and the absorption refrigeration unit 4 can provide lower temperature cooling water; the low-temperature cooling water enhances the condensation effect of the absorption refrigeration unit 4, improves the refrigeration efficiency and reduces energy consumption.

[0068] When the ambient temperature is high, the cooling water tower 19 can stabilize the cooling water temperature at a low level, so that the absorption refrigeration unit 4 can effectively cool the refrigerant even in hot weather, preventing overheating from affecting system performance. The heat exchange process between the cooling water tower 19 and the absorption refrigeration unit 4 reduces the system's dependence on the external temperature, ensuring stable operation in various environments.

[0069] It can be seen that the cooling water tower 19 exchanges heat with the absorption refrigeration unit 4, and by providing low-temperature cooling water, the condensation efficiency of the absorption refrigeration unit 4 is improved, the refrigeration effect is stabilized, and the energy efficiency of the system is optimized. The cooling water tower 19 effectively reduces the system's dependence on the external temperature, so that the absorption refrigeration unit 4 can operate efficiently under different environmental conditions, thereby providing support for the stability and energy saving of the entire refrigeration system.

[0070] In one embodiment of the present application, the secondary side of the third heat exchanger 20 is also connected to the gas power generation component 200, the condenser 9, and the absorption refrigeration unit 4 respectively.

[0071] Specifically, the inlet of the secondary side of the third heat exchanger 20 is connected to the water outlet of the cooling water tower 19, and the outlet of the secondary side of the third heat exchanger 20 is connected to the inlet of the four-way valve 23; the three outlets of the four-way valve 23 are respectively connected to the gas power generation component 200, the condenser 9 and the absorption refrigeration unit 4. The condenser 9 is used as a heat exchanger, and the secondary side of the condenser 9 is respectively connected to the compressor 15 and the liquid storage tank 10 to circulate the refrigerant. The inlet of the primary side of the condenser 9 is connected to the four-way valve 23, and the outlet of the primary side of the condenser 9 is connected to the return water port of the cooling water tower 19 through the third temperature sensor 18 (the third temperature sensor 18 is connected to the controller 300).

[0072] The cooling water of the cooling water tower 19 is supplied to the gas power generation component 200, the condenser 9 and the absorption refrigeration unit 4 respectively through the four-way valve 23, so as to cool the internal equipment of the absorption refrigeration unit 4, help the condenser 9 to dissipate heat so that the refrigerant can be transformed from gas to liquid, and help cool the waste heat generated by the gas power generation component 200. The four-way valve 23 is connected to the controller 300 to adjust the flow direction and flow rate of the cooling water according to the requirements of different temperatures, so as to ensure that each component has sufficient cooling water supply to maintain the normal operation of the system.

[0073] The phosgene-electricity complementary refrigeration system also includes a second three-way valve 16 and a second temperature sensor 21; the inlet of the second three-way valve 16 is connected to the secondary side of the second heat exchanger 11, and the two outlets of the second three-way valve 16 are respectively connected to the primary side of the third heat exchanger 20 and the absorption refrigeration unit 4; the second temperature sensor 21 is arranged between the cooling water tower 19 and the third heat exchanger 20.

[0074] Specifically, the second three-way valve 16 and the second temperature sensor 21 are both connected to the controller 300. When the temperature data detected by the second temperature sensor 21 is lower than a threshold value, the controller 300 controls the opening of the second three-way valve 16 to decrease so as to reduce the flow rate of chilled water flowing into the third heat exchanger 20. Conversely, when the temperature data detected by the second temperature sensor 21 is higher than a threshold value, the controller 300 controls the opening of the second three-way valve 16 to increase so as to increase the flow rate of chilled water flowing into the third heat exchanger 20.

[0075] A fourth temperature sensor 2 is also provided between the absorption refrigeration unit 4 and the return water port of the cooling water tower 19, a fifth temperature sensor 17 is also provided between the gas power generation assembly 200 and the return water port of the cooling water tower 19, and the third temperature sensor 18, the fourth temperature sensor 2 and the fifth temperature sensor 17 are all connected to the controller 300, so that the controller 300 can adjust the opening size of the four-way valve 23 according to the temperature detection data of the third temperature sensor 18, the fourth temperature sensor 2 and the fifth temperature sensor 17, thereby adjusting the cooling water supply flow. The controller 300 is also connected to the first heat exchanger 6, the second heat exchanger 11 and the third heat exchanger 20 respectively.

[0076] The gas power generation assembly 200 includes a gas pipeline network 22 and a generator set 8, and the generator set 8 is respectively connected to the gas pipeline network 22, the primary side of the first heat exchanger 6, the four-way valve 23, and the return water inlet of the cooling water tower 19.

[0077] In summary, the present application provides a refrigeration system with complementary cooperation between phosphine, gas and electricity, which can execute gas mode and electricity mode through intelligent regulation.

[0078] In gas mode: the controller 300 shuts off the power supply of the municipal power network 25, and only retains the energy supply of the gas power generation component 200 and the solar energy heat source component; the solar collector panel 1 absorbs solar heat and stores hot water in the water storage tank 3, and at the same time uses the first heat exchanger 6 to collect the low-temperature waste heat of the gas power generation component 200 and exchange heat with the recovery water circuit of the water storage tank 3.

[0079] The absorption refrigeration unit 4 uses the hot water in the water storage tank 3 as part of the heat source, and the flue gas heat source comes from the flue gas waste heat of the gas power generation component 200; the cold energy generated by the absorption refrigeration unit 4 is exchanged with the outside world using water as the refrigerant, and a part of the chilled water is supercooled by the second heat exchanger 11 to the refrigerant in the compression refrigeration unit 100. The refrigerant in the compression refrigeration unit 100 becomes steam after passing through the compressor 15, is cooled by the condenser 9, and enters the liquid storage tank 10 to ensure that the refrigerant is in a saturated liquid state. After becoming a saturated liquid, it flows through the second heat exchanger 11 for supercooling to reach a supercooling state, and then enters the throttle valve 13 for pressure reduction. The evaporator 14 exchanges heat with the refrigerant water to become superheated steam and circulates again in the compressor 15. The compressor 15 is directly driven by the electric energy generated by the gas power generation component 200. Another part of the chilled water in the absorption refrigeration unit 4 is directly connected to the refrigeration space 24.

[0080] The low-temperature cold water discharged from the second heat exchanger 11 flows through the third heat exchanger 20 to exchange heat with the outlet water of the cooling water tower 19 to reduce the temperature of the cooling water. The second three-way valve 16 adjusts the opening according to the temperature feedback of the second temperature sensor 21, and finally the low-temperature cooling water returns to the absorption refrigeration unit 4. The cooling water flowing out of the cooling water tower 19 flows through the four-way valve 23 to the absorption refrigeration unit 4, the condenser 9 and the gas power generation component 200 respectively.

[0081] In the electric mode: the controller 300 shuts off the power supply of the gas power generation component 200, and since the off-peak period is generally at night, the absorption refrigeration unit 4 can only be driven by the hot water stored in the hot water storage tank 3 during the day. The refrigerant in the compression refrigeration unit 100 becomes steam after passing through the compressor 15, is cooled by the condenser 9, and enters the liquid storage tank 10 to ensure that the refrigerant is in a saturated liquid state. After becoming a saturated liquid, it flows through the second heat exchanger 11 for supercooling to reach a supercooling state, and then enters the throttle valve 13 for pressure reduction. The evaporator 14 exchanges heat with the refrigerant water to become superheated steam and recirculates in the compressor 15. The compressor 15 is directly driven by the city power network 25.

[0082] Another part of the chilled water of the absorption refrigeration unit 4 is directly connected to the refrigeration space 24. The low-temperature cold water discharged from the second heat exchanger 11 flows through the third heat exchanger 20 to exchange heat with the outlet water of the cooling water tower 19 to reduce the temperature of the cooling water, and finally the low-temperature cooling water returns to the absorption refrigeration unit 4.

[0083] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A refrigeration system with complementary synergy of phosgene and electricity, characterized in that: It includes: An absorption refrigeration unit, used to be connected to a refrigeration space to refrigerate the refrigeration space; A compression refrigeration unit is connected to the refrigeration space and the mains network respectively to cool the refrigeration space; A solar heat source assembly is connected to the absorption refrigeration unit and is used to supply heat source to the absorption refrigeration unit through solar energy; The gas power generation assembly is respectively connected to the gas pipeline network, the absorption refrigeration unit and the compression refrigeration unit.

2. The refrigeration system of phosgene and electricity complementation according to claim 1 is characterized in that: The light energy heat source assembly comprises: Solar thermal panels; The heat storage tank is connected to the solar heat collecting panel and the absorption refrigeration unit respectively.

3. The refrigeration system of phosgene and electricity complementation according to claim 1 is characterized in that: It also includes: The first heat exchanger; the primary side of the first heat exchanger is connected to the gas power generation component, and the secondary side of the first heat exchanger is respectively connected to the solar heat source component and the absorption refrigeration unit.

4. The refrigeration system of claim 1, characterized in that: The compression refrigeration unit comprises: A compressor is connected to the mains network and the gas power generation assembly respectively; A condenser connected to the compressor; a throttle valve connected to the condenser; The evaporator is connected to the throttle valve and the compressor respectively to form a refrigerant circulation loop.

5. The refrigeration system of phosgene and electricity complementation according to claim 4 is characterized in that: It also includes: A liquid storage tank, located between the condenser and the throttle valve, and connected to the condenser; The second heat exchanger is located between the liquid storage tank and the throttle valve; the primary side of the second heat exchanger is connected to the liquid storage tank and the throttle valve respectively, and the secondary side of the second heat exchanger is connected to the absorption refrigeration unit.

6. The refrigeration system of phosgene and electricity complementation according to claim 5 is characterized in that: It also includes: a first three-way valve; an inlet of the first three-way valve is connected to the absorption refrigeration unit, and two outlets of the first three-way valve are respectively connected to the secondary side of the second heat exchanger and the refrigeration space; The first temperature sensor is arranged between the second heat exchanger and the throttle valve.

7. The refrigeration system of claim 5, characterized in that: It also includes: A cooling water tower is connected to the condenser.

8. The phosgene-electricity complementary refrigeration system according to claim 7, characterized in that: It also includes: The third heat exchanger; the primary side of the third heat exchanger is respectively connected to the secondary side of the second heat exchanger and the absorption refrigeration unit; the secondary side of the third heat exchanger is connected to the cooling water tower.

9. The refrigeration system of phosgene and electricity complementation according to claim 8, characterized in that: The secondary side of the third heat exchanger is also connected to the gas power generation assembly, the condenser, and the absorption refrigeration unit respectively.

10. The refrigeration system of phosgene and electricity complementation according to claim 8, characterized in that: It also includes: a second three-way valve; an inlet of the second three-way valve is connected to the secondary side of the second heat exchanger, and two outlets of the second three-way valve are respectively connected to the primary side of the third heat exchanger and the absorption refrigeration unit; The second temperature sensor is arranged between the cooling water tower and the third heat exchanger.

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