Refrigeration cycle system and refrigeration device having the same

Abstract

The application discloses a refrigeration cycle system and a refrigeration equipment with the same. The refrigeration cycle system comprises an evaporation refrigeration assembly, an absorption regeneration assembly and a heating assembly. The evaporation refrigeration assembly comprises an evaporator filled with refrigerant. The absorption regeneration assembly comprises a regenerator filled with lithium bromide solution. The absorption regeneration assembly is connected with the evaporation refrigeration assembly through a refrigeration flow path and a regeneration flow path. The refrigeration cycle system has a regeneration stage and a refrigeration stage. In the regeneration stage, steam generated by the lithium bromide solution in the regenerator enters the evaporation refrigeration assembly. In the refrigeration stage, steam generated by the refrigerant in the evaporator enters the absorption regeneration assembly. The heating assembly is used for heating the regenerator to increase the concentration of the lithium bromide solution in the regenerator so that the lithium bromide solution is crystallized. The heating assembly is configured to work in the regeneration stage and stop working in the refrigeration stage. The refrigeration cycle system of the embodiment of the application allows the lithium bromide solution to be crystallized, greatly improves the refrigeration efficiency and makes the refrigeration cycle system simple in structure.

Description

Technical Field

[0001] This invention relates to the field of temperature control technology, specifically to a refrigeration cycle system and a refrigeration device having the same. Background Technology

[0002] In existing technologies, lithium bromide absorption refrigeration cycle systems are large-scale refrigeration devices that use a heat source (steam or fuel) as power and lithium bromide solution as the circulating medium. The large size of these devices limits their application, typically limiting them to industrial refrigeration. Their size has long been a source of concern. Furthermore, these systems also suffer from low cooling capacity per unit volume and poor refrigeration efficiency.

[0003] Furthermore, the concentration and temperature of the lithium bromide solution undergo periodic changes during the refrigeration cycle. If these changes are too drastic during equipment operation, the lithium bromide solution concentration may become too high or the temperature too low, causing lithium bromide to precipitate in crystal form. This is known as solution crystallization. When lithium bromide solution crystallizes, the lithium bromide solution circulation process is obstructed. If not dealt with in time, the unit will be unable to operate normally, and may even cause serious malfunctions such as refrigeration unit shutdown, burnout of the canned pump, and damage to electrical components.

[0004] To avoid the aforementioned problems, existing technologies typically involve adjusting the concentration gradient of the lithium bromide solution. However, this approach leads to a larger required solution volume, a larger total mass of the working medium, and an excessively large device size. Furthermore, while this solution prevents lithium bromide crystallization, it does not resolve issues such as low cooling capacity per unit volume and poor cooling efficiency. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a refrigeration cycle system, which has a simple structure, small size, and high refrigeration efficiency.

[0006] The present invention also aims to provide a refrigeration device having the above-described refrigeration cycle system.

[0007] A refrigeration cycle system according to an embodiment of the present invention includes: an evaporative refrigeration assembly comprising an evaporator adapted to be filled with a refrigerant; an absorption regeneration assembly comprising a regenerator adapted to be filled with a lithium bromide solution, wherein a refrigeration flow path and a regeneration flow path are connected between the absorption regeneration assembly and the evaporative refrigeration assembly, the refrigeration cycle system having a regeneration stage and a refrigeration stage, wherein in the regeneration stage, vapor generated by the lithium bromide solution in the regenerator enters the evaporative refrigeration assembly through the regeneration flow path, and in the refrigeration stage, vapor generated by the refrigerant in the evaporator enters the absorption regeneration assembly through the refrigeration flow path; and a heating assembly for heating the regenerator to increase the concentration of the lithium bromide solution in the regenerator to induce crystallization, the heating assembly being configured to operate in the regeneration stage and cease operation in the refrigeration stage.

[0008] According to an embodiment of the refrigeration cycle system of the present invention, by providing a heating component, during the regeneration phase of the refrigeration cycle system, the heating component operates to heat the lithium bromide solution in the regenerator, causing it to crystallize and thereby increasing the concentration of the lithium bromide solution. In this way, the lithium bromide solution can efficiently absorb the vapor in the evaporator within the refrigeration cycle system, allowing the refrigerant in the evaporator to effectively evaporate and lower its own temperature. This enables heat exchange between the evaporator and other structural components or air to achieve the refrigeration purpose. In other words, this application increases the concentration of the lithium bromide solution by providing a heating component, allowing the lithium bromide solution to crystallize, thereby effectively improving refrigeration efficiency. Furthermore, the refrigeration cycle system of this application has a simple structure, and by installing this refrigeration cycle system on a refrigeration device, the size of the device can be effectively reduced.

[0009] According to some embodiments of the refrigeration cycle system of the present invention, the evaporative refrigeration assembly further includes a first condenser connected between the evaporator and the regenerator, wherein vapor generated by the lithium bromide solution in the regenerator enters the first condenser through the regeneration flow path.

[0010] Optionally, the absorption and regeneration assembly further includes an absorber connected between the evaporator and the regenerator, the absorber being adapted to be filled with a lithium bromide solution, wherein during the refrigeration stage, vapor generated by the refrigerant in the evaporator enters the absorber through the refrigeration flow path.

[0011] Optionally, the refrigeration cycle system further includes: a first control valve, which is disposed on the connecting pipeline between the absorber and the regenerator, and is configured to be closed during the regeneration phase and open during the refrigeration phase.

[0012] Optionally, the refrigeration cycle system further includes: a second control valve, which is disposed on the connecting pipe between the evaporator and the first condenser, and is configured to be closed during the regeneration phase and open during the refrigeration phase.

[0013] Optionally, the refrigeration cycle system further includes a generator and a second condenser, and the refrigeration cycle system further includes a first circulation path, the fluid of the first circulation path being adapted to circulate in sequence from the evaporator to the absorber, to the generator, and then to the second condenser, the refrigeration cycle system being configured such that the first circulation path operates during the regeneration phase and stops operating during the refrigeration phase.

[0014] Optionally, the refrigeration cycle system further includes a cooling tower, and the refrigeration cycle system further includes a second circulation path, wherein the fluid in the second circulation path is adapted to circulate in sequence from the cooling tower to the absorber and then to the second condenser.

[0015] Optionally, the heating assembly includes: a first regenerator for recovering waste heat from the heat source of the generator; and / or a second regenerator for recovering waste heat from the second circulation path.

[0016] According to some embodiments of the refrigeration cycle system of the present invention, the refrigeration cycle system further includes: an adsorption component connected to the regenerator, wherein vapor generated by the lithium bromide solution in the regenerator is adapted to be drawn into the adsorption component.

[0017] Optionally, the adsorption assembly includes a molecular sieve and a third control valve, wherein the third control valve is located on the connecting pipeline between the molecular sieve and the regenerator.

[0018] According to some embodiments of the refrigeration cycle system of the present invention, the refrigeration cycle system further includes: a heat dissipation component for dissipating heat from the regenerator, the heat dissipation component being configured to operate during the refrigeration phase and to cease operation during the regeneration phase.

[0019] According to some embodiments of the refrigeration cycle system of the present invention, the evaporator and the regenerator are directly connected through a common pipeline, and both the refrigeration flow path and the regeneration flow path are formed within the common pipeline.

[0020] According to an embodiment of the present invention, the refrigeration device includes the aforementioned refrigeration cycle system.

[0021] According to the refrigeration equipment of the present invention, by employing the aforementioned refrigeration cycle system, the refrigeration efficiency of the refrigeration equipment can be improved while the size of the refrigeration equipment can be reduced.

[0022] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of a refrigeration cycle system according to some embodiments of the first aspect of the present invention.

[0025] Figure 2 This is a schematic diagram of a refrigeration cycle system according to some embodiments of the second aspect of the present invention.

[0026] Figure 3 This is a schematic diagram of a refrigeration cycle system according to some embodiments of the third aspect of the present invention.

[0027] Figure 4 This is a schematic diagram illustrating the principle of regeneration in a refrigeration cycle system according to some embodiments of the third aspect of the present invention.

[0028] Figure 5 This is a schematic diagram illustrating the principle of a refrigeration cycle system implementing refrigeration according to some embodiments of the third aspect of the present invention.

[0029] Figure label:

[0030] 1000. Refrigeration cycle system;

[0031] 100. Evaporator refrigeration unit; 110. Evaporator; 120. First condenser;

[0032] 200. Absorption and regeneration assembly; 210. Regenerator; 220. Absorber;

[0033] 230. Heat dissipation components;

[0034] 310. Cooling flow path; 320. Regeneration flow path; 330. First circulation flow path; 340. Second circulation flow path;

[0035] 400. Heating assembly; 410. Secondary regenerator;

[0036] 510. First control valve; 520. Second control valve;

[0037] 600. Generator;

[0038] 700. Second condenser;

[0039] 800. Cooling tower;

[0040] 900, Adsorption assembly; 910, Molecular sieve; 911, Heating wire; 920, Third control valve;

[0041] 10. Pump body; 20. Heat exchanger; 30. Heating pipe; 40. Refrigerant pipe; 50. Regulating valve; 60. Throttling valve. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0044] The following is a reference to the instruction manual. Figures 1-5 A refrigeration cycle system 1000 according to an embodiment of the present invention is described.

[0045] A refrigeration cycle system 1000 according to an embodiment of the present invention, such as Figures 1-3 As shown, it includes: an evaporative cooling component 100, an absorption and regeneration component 200, and a heating component 400.

[0046] like Figure 1 As shown, the evaporative refrigeration assembly 100 includes an evaporator 110, which is adapted to be filled with refrigerant. Alternatively, the evaporator 110 can be understood as providing space for the refrigerant, ensuring that the refrigerant can be effectively placed within the refrigeration cycle system 1000, facilitating subsequent use of the refrigerant to achieve refrigeration. The refrigerant mentioned here can be water, which is inexpensive and easy to use, thus making the refrigeration cycle system 1000 of this application low-cost and easy to use.

[0047] In some instances, such as Figure 1 and Figure 2As shown, a refrigerant pipe 40 is provided inside the evaporator 110. The refrigerant pipe 40 is filled with refrigerant. The refrigerant is suitable for absorbing the heat of the refrigerant in the refrigerant pipe 40 to lower the temperature of the refrigerant. Then, the lower temperature refrigerant is transferred to other components through the refrigerant pipe 40 to achieve the purpose of cooling.

[0048] Furthermore, such as Figure 1 As shown, a pump body 10 is connected to the evaporator 110. The pump body 10 connected to the evaporator 110 is used to accelerate the circulation of refrigerant in the evaporator 110, ensuring that the refrigerant in the evaporator 110 can effectively exchange heat with the refrigerant in the refrigerant pipe 40, thereby accelerating the evaporation of the refrigerant and improving the cooling capacity and cooling efficiency.

[0049] The absorption and regeneration assembly 200 includes a regenerator 210, which is adapted to be filled with a lithium bromide solution. Alternatively, the regenerator 210 can be understood as providing space for the lithium bromide solution, ensuring that the lithium bromide solution can be effectively placed within the refrigeration cycle system 1000, facilitating subsequent absorption of vapor using the lithium bromide solution. Since lithium bromide solution has good absorption performance, placing it within the regenerator 210 can effectively improve the absorption performance of the regenerator 210.

[0050] A refrigeration flow path 310 and a regeneration flow path 320 are connected between the absorption regeneration assembly 200 and the evaporative refrigeration assembly 100. The refrigeration cycle system 1000 has a regeneration stage and a refrigeration stage. In the regeneration stage, the vapor generated by the lithium bromide solution in the regenerator 210 enters the evaporative refrigeration assembly 100 through the regeneration flow path 320. In the refrigeration stage, the vapor generated by the refrigerant in the evaporator 110 enters the absorption regeneration assembly 200 through the refrigeration flow path 310. The heating assembly 400 is used to heat the regenerator 210 to increase the concentration of the lithium bromide solution in the regenerator 210 to induce crystallization. The heating assembly 400 is configured to operate during the regeneration stage and cease operation during the refrigeration stage.

[0051] Alternatively, during the regeneration stage, the heating component 400 operates to heat the lithium bromide solution within the regenerator 210, where the lithium bromide solution crystallizes, thereby enhancing its absorption performance. Simultaneously, upon heating, some of the absorbed water in the lithium bromide solution evaporates to form steam. Due to the pressure difference between the evaporative cooling component 100 and the absorption regeneration component 200, the steam can flow towards the evaporative cooling component 100 along the extension direction of the regeneration flow path 320. This flowing steam ensures that the lithium bromide solution is effectively concentrated while also delivering steam into the evaporative cooling component 100, thereby achieving the purpose of delivering refrigerant to the evaporator 110.

[0052] During the cooling stage, the heating component 400 stops heating. At this time, the refrigerant in the evaporator 110 absorbs the heat of the refrigerant and vaporizes into steam. In order to ensure that the evaporator 110 can absorb the heat of the refrigerant normally, the steam in the evaporator 110 needs to be discharged to the outside of the evaporator 110. Therefore, this application sets up a cooling flow path 310. Under the absorption of the lithium bromide solution, the steam in the evaporator 110 can flow along the extension direction of the cooling flow path 310, so that the steam in the evaporator 110 can be quickly discharged from the evaporator 110 and enter the absorption and regeneration component 200.

[0053] In summary, the lithium bromide solution in the refrigeration cycle system 1000 of this application does not circulate during the refrigeration stage. That is, even if the lithium bromide solution in this application crystallizes, the circulation of the lithium bromide solution will not be blocked, resulting in a significant decrease in refrigeration capacity. Furthermore, it will not cause serious malfunctions such as shutdown of the refrigeration cycle system 1000, burnout of the pump body 10, or damage to electrical components.

[0054] Furthermore, based on the aforementioned characteristics (lithium bromide solution does not circulate) and the properties of lithium bromide solution (the higher the concentration of the solution, the stronger its absorption capacity), this application sets up a heating component 400. During the regeneration phase of the refrigeration cycle system 1000, the heating component 400 is fully utilized to heat the lithium bromide solution, thereby increasing the concentration of the lithium bromide solution and allowing the lithium bromide solution to crystallize, thus improving the absorption performance of the lithium bromide solution. In this way, when the refrigeration cycle system 1000 switches to the refrigeration phase, the higher concentration of the lithium bromide solution can be used to absorb the vapor in the evaporator 110, so that the refrigerant in the evaporator 110 can effectively absorb the heat in the refrigerant pipe 40, thereby achieving the purpose of cooling the refrigerant pipe 40 and improving the refrigeration efficiency.

[0055] As can be seen from the above structure, the refrigeration cycle system 1000 of this embodiment of the invention has a regeneration stage and a refrigeration stage to achieve intermittent refrigeration. In the non-refrigeration process, that is, in the regeneration stage, the heating component 400 is used to heat the lithium bromide solution in the regenerator 210 to increase the concentration of the lithium bromide solution, thereby improving the absorption performance of the lithium bromide solution. When the user needs to refrigerate through the refrigeration cycle system 1000, the refrigeration cycle system 1000 is switched to the refrigeration stage. At this time, the higher concentration of lithium bromide solution can fully absorb the vapor in the evaporator 110, so that the refrigerant in the evaporator 110 can effectively absorb the heat of the refrigerant, thereby improving the refrigeration effect of the refrigerant, that is, improving the refrigeration effect of the entire refrigeration cycle system 1000.

[0056] Furthermore, since this application allows the lithium bromide solution to become concentrated, it can also be understood as allowing the lithium bromide solution to crystallize. This eliminates the need to adhere to the design parameters for large-scale units, meaning there is no need to set up a large capacity of lithium bromide solution, thereby reducing the overall volume of the refrigeration cycle system 1000. In other words, the refrigeration cycle system 1000 of this application not only has good cooling performance but also a small size.

[0057] Understandably, compared to existing technologies, the refrigeration cycle system 1000 of this application allows lithium bromide solution to crystallize without worrying about the risk of crystallization, and greatly improves energy storage density, cooling capacity and refrigeration efficiency, while also reducing the volume of the refrigeration cycle system 1000.

[0058] As can be clearly seen from the table below, when the lithium bromide solution is allowed to crystallize (cooling capacity 100W, cooling time 5H), the mass of the lithium bromide solution decreases by nearly 5 times, thereby greatly improving the energy storage density while reducing the equipment volume.

[0059] Circulating water volume (kg) 0.73 0.73 Concentration / mass before absorption 64% / 9.9kg 90% / 1.46kg Concentration / mass after absorption 59.6% / 10.6kg 59.6% / 2.19kg

[0060] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the evaporative cooling assembly 100 also includes a first condenser 120, which is connected between the evaporator 110 and the regenerator 210. Vapor generated from the lithium bromide solution in the regenerator 210 enters the first condenser 120 through the regeneration flow path 320. The first condenser 120 is used to cool the vapor entering the first condenser 120 to convert the vapor into liquid water.

[0061] In a specific example, a cooling pipe is provided inside the first condenser 120, and the cooling pipe is filled with cooling water. The cooling water in the cooling pipe cools the steam entering the first condenser 120 so that the steam from the regenerator 210 is condensed into liquid water.

[0062] Optionally, such as Figure 1 and Figure 3 As shown, the first condenser 120 is connected to the evaporator 110 via a pipe. After the first condenser 120 condenses the vapor into liquid water, it transports the liquid water to the evaporator 110 to replenish the refrigerant in the evaporator 110, allowing the vapor generated by the lithium bromide solution in the regenerator 210 to continue evaporating and absorbing heat. At this point, a complete regeneration cycle is formed.

[0063] It should be noted that in some other examples, such as Figure 2As shown, the first condenser 120 may not be provided. When the evaporative cooling component 100 is in the regeneration stage, the vapor generated by the lithium bromide solution in the regenerator 210 directly enters the evaporator 110 through the regeneration flow path 320. In order to ensure that the vapor entering the evaporator 110 can be converted into liquid water, a cooling component can be provided in the evaporator 110 to reduce the temperature of the vapor and enable the vapor to be effectively converted into liquid water.

[0064] The aforementioned refrigeration components can be either air-cooled or liquid-cooled. The structure by which air-cooled or liquid-cooled components induce the vapor phase to liquid water is prior art to those skilled in the art and will not be elaborated upon here.

[0065] Optionally, such as Figure 1 As shown, the absorption and regeneration assembly 200 also includes an absorber 220, which is connected between the evaporator 110 and the regenerator 210. The absorber 220 is suitable for being filled with a lithium bromide solution. During the refrigeration stage, the vapor generated by the refrigerant in the evaporator 110 enters the absorber 220 through the refrigeration flow path 310. It should be noted that the vapor in the evaporator 110 entering the absorber 220 through the refrigeration flow path 310 actually means that, under the action of the lithium bromide solution in the absorber 220, the lithium bromide solution absorbs the vapor in the evaporator 110, so that the vapor generated by the refrigerant in the evaporator 110 is drawn into the absorber 220. This ensures that the vapor in the evaporator 110 can be effectively discharged, thereby allowing the refrigerant in the evaporator 110 to effectively absorb the heat of the refrigerant and achieve the purpose of refrigeration.

[0066] Optionally, by filling the absorber 220 with a lithium bromide solution, the absorption capacity of the absorber 220 can be effectively improved based on the absorption characteristics of the lithium bromide solution.

[0067] In summary, in some embodiments of this application, the evaporative cooling assembly 100 includes an evaporator 110 and a first condenser 120, and the absorption regeneration assembly 200 includes a regenerator 210 and an absorber 220. The first condenser 120 is connected between the regenerator 210 and the evaporator 110, and the absorber 220 is connected between the evaporator 110 and the regenerator 210. During the regeneration stage of the evaporative cooling assembly 100, the heating assembly 400 heats the lithium bromide solution in the regenerator 210 to increase the concentration of the lithium bromide solution. During the heating of the lithium bromide solution, the steam generated in the regenerator 210 flows to the first condenser 120 through the regeneration flow path 320. The first condenser 120 is used to cool the steam to liquefy the steam into water.

[0068] During the cooling phase of the evaporative cooling assembly 100, the heating assembly 400 stops heating, and the refrigerant in the evaporator 110 evaporates to absorb heat from the refrigerant, thereby cooling the refrigerant. At this time, the vapor generated by the refrigerant evaporation flows into the absorber 220 under the action of the absorber 220 and the regenerator 210. The high-concentration lithium bromide solution in the absorber 220 absorbs vapor, causing some of the concentrated solution to become a dilute solution. The diluted lithium bromide solution in the absorber 220 then flows back into the regenerator 210 to continuously dissolve the lithium bromide solution that crystallized during heating, thereby reducing the concentration of the lithium bromide solution in the regenerator 210. As the concentration of the lithium bromide solution in the regenerator 210 continuously decreases, the absorption performance of the absorption and regeneration assembly 200 decreases. At this time, the cooling phase of the evaporative cooling assembly 100 can be shut down, and the regeneration phase of the evaporative cooling assembly 100 can be started. The heating assembly 400 continues to heat the lithium bromide solution in the regenerator 210, preparing for the subsequent activation of the cooling phase of the evaporative cooling assembly 100, and realizing the intermittent cooling of the evaporative cooling assembly 100.

[0069] Optionally, such as Figure 1 As shown, the refrigeration cycle system 1000 also includes a first control valve 510, which is located on the connecting pipe between the absorber 220 and the regenerator 210. The first control valve 510 is configured to be closed during the regeneration phase and open during the refrigeration phase. Alternatively, the first control valve 510 can be understood as controlling the opening and closing of the connecting pipe between the absorber 220 and the regenerator 210. When the refrigeration cycle system 1000 starts the regeneration phase, the first control valve 510 is closed, thus cutting off the connecting pipe between the absorber 220 and the regenerator 210. This ensures that when the heating component 400 heats the lithium bromide solution in the regenerator 210, the generated vapor will not flow into the absorber 220. In other words, it ensures that the lithium bromide solution in the absorber 220 maintains its concentration effectively during the regeneration phase, ensuring that the absorber 220 can effectively absorb the vapor in the evaporator 110 when the refrigeration mode is activated.

[0070] When the refrigeration cycle system 1000 starts the refrigeration stage, the first control valve 510 opens, and the connecting pipe between the absorber 220 and the regenerator 210 is connected. On the one hand, this ensures that the regenerator 210 can effectively absorb the vapor in the evaporator 110 through the absorber 220, and on the other hand, it also ensures that the diluted solution in the absorber 220 can flow into the regenerator 210, thereby ensuring the absorption performance of the absorber 220.

[0071] Optionally, the first control valve 510 can be a normally open valve or a normally closed valve. When the first control valve 510 is a normally open valve, the first control valve 510 is suitable to open when not energized or not activated, and close when energized. When the first control valve 510 is a normally closed valve, the first control valve 510 is suitable to close when not energized or not activated, and open when energized.

[0072] Optionally, such as Figure 1 As shown, the refrigeration cycle system 1000 also includes a second control valve 520, which is located on the connecting pipe between the evaporator 110 and the first condenser 120. The second control valve 520 is configured to close during the regeneration phase and open during the refrigeration phase. Alternatively, the second control valve 520 can be understood as controlling the opening and closing of the connecting pipe between the evaporator 110 and the first condenser 120. When the refrigeration cycle system 1000 enters the regeneration phase, the second control valve 520 closes, thus cutting off the connecting pipe between the evaporator 110 and the first condenser 120. This ensures that steam or water in the first condenser 120 does not flow into the evaporator 110, thereby preventing overflow of the evaporator 110 due to excessive refrigerant input and improving the safety of the refrigeration cycle system 1000.

[0073] When the refrigeration cycle system 1000 starts the refrigeration stage, the second control valve 520 opens. At this time, the connecting pipe between the evaporator 110 and the first condenser 120 is opened, ensuring that the water in the first condenser 120 can effectively enter the evaporator 110, so as to replenish the refrigerant in the evaporator 110. This ensures that there is enough refrigerant in the evaporator 110 to continue to exchange heat with the refrigerant, thereby improving the heat exchange efficiency of the evaporator 110, which in turn improves the refrigeration quality of the refrigeration cycle system 1000.

[0074] Optionally, the second control valve 520 can be a normally open valve or a normally closed valve. When the second control valve 520 is a normally open valve, it is suitable to open when not energized or not activated, and close when energized. When the second control valve 520 is a normally closed valve, it is suitable to close when not energized or not activated, and open when energized.

[0075] In conclusion, as follows: Figure 1 As shown, in some examples of the invention, when the refrigeration cycle system 1000 starts the regeneration stage, both the first control valve 510 and the second control valve 520 are closed, and only the regenerator 210 and the first condenser 120 are connected to each other; when the refrigeration cycle system 1000 starts the refrigeration stage, both the first control valve 510 and the second control valve 520 are open, and the regenerator 210, the first condenser 120, the evaporator 110 and the absorber 220 are connected to each other.

[0076] Optionally, such as Figure 1As shown, the refrigeration cycle system 1000 also includes a generator 600 and a second condenser 700. The refrigeration cycle system 1000 also includes a first circulation path 330, the fluid of which is adapted to circulate in sequence from the evaporator 110, to the absorber 220, to the generator 600, and then to the second condenser 700. The refrigeration cycle system 1000 is configured such that the first circulation path 330 operates during the regeneration phase and stops operating during the refrigeration phase. In other words, when both the first control valve 510 and the second control valve 520 are closed, the first circulation path 330 operates. At this time, the steam generated in the evaporator 110 can flow out of the evaporator 110 under the action of the absorber 220, so as to ensure that the refrigerant in the evaporator 110 can effectively absorb the heat of the refrigerant. When both the first control valve 510 and the second control valve 520 are open, the first circulation path 330 stops operating. At this time, the steam generated in the evaporator 110 can flow out of the evaporator 110 under the action of the absorber 220 and the regenerator 210, which can also ensure that the refrigerant in the evaporator 110 can effectively absorb the heat of the refrigerant. That is to say, when the generator 600 and the second condenser 700 are provided, the refrigeration purpose can be achieved in both the regeneration stage and the refrigeration stage, so that the refrigeration cycle system 1000 can perform continuous refrigeration, thereby improving refrigeration efficiency and enhancing user experience.

[0077] It should be noted that the above-mentioned first circulation path 330 stopping operation during the refrigeration stage actually means that when the first control valve 510 and the second control valve 520 are both open, and the regenerator 210, the first condenser 120, the evaporator 110 and the absorber 220 are interconnected to form refrigeration, the first circulation path 330 stops operating.

[0078] The operation of the first circulation path 330 during the regeneration stage, as mentioned above, actually refers to the process in which the fluid circulates sequentially from the evaporator 110, to the absorber 220, to the generator 600, and then to the second condenser 700 when the first control valve 510 and the second control valve 520 are both closed. This process is also the process of achieving refrigeration.

[0079] In other words, in this application Figure 1In the illustrated embodiment, when the first circulation path 330 is running, both the first control valve 510 and the second control valve 520 are closed. At this time, the regenerator 210 is heated to achieve regeneration, but the refrigeration cycle system 1000 can simultaneously perform a refrigeration process, forming a main refrigeration cycle. When the first circulation path 330 stops running, both the first control valve 510 and the second control valve 520 are opened. At this time, the regenerator 210, the first condenser 120, the evaporator 110, and the absorber 220 are interconnected to form refrigeration, thus forming a secondary refrigeration cycle. Therefore, the refrigeration cycle system 1000 of this application can achieve refrigeration in both the regeneration and refrigeration stages, greatly improving refrigeration efficiency.

[0080] The following is in conjunction with the instruction manual appendix. Figure 1 This document details the refrigeration cycle process of the refrigeration cycle system 1000 when the refrigeration cycle system 1000 also includes a generator 600, a second condenser 700, and a first circulation path 330, and when the first circulation path 330 is running.

[0081] like Figure 1 As shown, when the first circulation path 330 is running, the refrigerant in the evaporator 110 evaporates to absorb the temperature of the refrigerant, thereby achieving the purpose of lowering the temperature of the refrigerant and realizing the cooling effect. In order to ensure that the evaporator 110 can continuously cool the refrigerant, an absorber 220 is set up. The lithium bromide solution in the absorber 220 is used to absorb the vapor in the evaporator 110 to ensure that the evaporator 110 can continuously cool the refrigerant. When the lithium bromide solution absorbs vapor into the absorber 220, the vapor will cause the concentration of some lithium bromide solution to decrease, thereby causing the absorption quality of the lithium bromide solution to decrease. In order to ensure the absorption quality of the lithium bromide solution, a generator 600 is set up. The liquid outlet of the absorber 220 and the liquid inlet of the generator 600 are connected through the first circulation path 330. A pump body 10 is set between the generator 600 and the absorber 220. The pump body 10 is used to transport the diluted lithium bromide solution with a lower concentration in the absorber 220 to the generator 600.

[0082] Optionally, such as Figure 1 As shown, a heating tube 30 is installed inside the generator 600 to heat the lithium bromide solution inside the generator 600, thereby increasing the concentration of the lithium bromide solution. The liquid outlet of the generator 600 and the liquid inlet of the absorber 220 are also connected through a first circulation path 330. The lithium bromide solution with increased concentration in the generator 600 flows back to the absorber 220 through the first circulation path 330 to absorb steam from the evaporator 110 again, thus achieving the circulation of the lithium bromide solution.

[0083] Optionally, such as Figure 1As shown, a heat exchanger 20 is also provided between the absorber 220 and the generator 600. Both the lithium bromide solution flowing from the generator 600 to the absorber 220 and from the absorber 220 to the generator 600 pass through the heat exchanger 20. It should be noted that the lithium bromide solution flowing from the absorber 220 to the generator 600 has a low concentration and low temperature, while the lithium bromide solution flowing from the generator 600 to the absorber 220 has a high concentration and high temperature. However, since the absorption performance of lithium bromide solution is better the lower the temperature, this application provides a heat exchanger 20 to allow the higher-temperature lithium bromide solution to exchange heat with the lower-temperature lithium bromide solution, thereby reducing the temperature of the lithium bromide solution flowing from the generator 600 to the absorber 220, and ensuring that the lithium bromide solution in the absorber 220 can effectively absorb steam. For example, Figure 1 As shown, a regulating valve 50 is also provided between the liquid outlet of the generator 600 and the liquid inlet of the absorber 220. The regulating valve 50 is used to control the opening and closing of the liquid outlet of the generator 600 and the liquid inlet of the absorber 220.

[0084] Optionally, after the lithium bromide solution in the generator 600 has finished heating, the regulating valve 50 is opened, allowing the lithium bromide solution in the generator 600 to flow smoothly into the absorber 220; when the lithium bromide solution in the generator 600 is being heated, the regulating valve 50 is closed to prevent the lithium bromide solution in the generator 600 from flowing into the absorber 220.

[0085] It should be noted that when the heating tube 30 heats the lithium bromide solution in the generator 600, some steam will also be generated in the generator 600. Therefore, this application provides a second condenser 700, which receives the steam generated in the generator 600 and cools the steam to turn it into liquid water. Then, the second condenser 700 delivers the liquid water to the evaporator 110, and a complete refrigeration cycle is completed.

[0086] Optionally, such as Figure 1 As shown, a throttling valve 60 is provided between the second condenser 700 and the evaporator 110. The throttling valve 60 is used to control the opening and closing of the pipeline between the second condenser 700 and the evaporator 110, thereby controlling whether the liquid water in the second condenser 700 is transported to the evaporator 110, so that the amount of liquid water transported is controllable.

[0087] Optionally, such as Figure 1As shown, the refrigeration cycle system 1000 also includes a cooling tower 800 and a second circulation path 340. The fluid in the second circulation path 340 is adapted to circulate sequentially from the cooling tower 800, to the absorber 220, and then to the second condenser 700. This achieves the purpose of cooling the lithium bromide solution in the absorber 220 and the vapor in the second condenser 700, thereby improving the condensation effect of the second condenser 700 and also enhancing the absorption effect of the lithium bromide solution in the absorber 220.

[0088] Specifically, when the first circulation path 330 is running, the second circulation path 340 is running simultaneously. The liquid that has been cooled in the cooling tower 800 first flows through the absorber 220 to cool the lithium bromide solution in the absorber 220, thereby reducing the temperature of the lithium bromide solution and improving the absorption effect of the lithium bromide solution. Subsequently, the fluid in the second circulation path 340 flows through the second condenser 700 to cool the steam in the second condenser 700, so that the steam phase changes into water, which is convenient for conveying liquid water to the evaporator 110.

[0089] Optionally, such as Figure 1 As shown, a pump body 10 is provided on the second circulation flow path 340 to draw out the liquid in the second circulation flow path 340 and ensure that the liquid can flow normally.

[0090] Optionally, the heating assembly 400 includes a first regenerator (not shown in the figure) for recovering waste heat from the heat source of the generator 600. In other words, this application mainly heats the lithium bromide solution in the regenerator 210 by recovering waste heat from the generator 600, thereby improving energy utilization and reducing the operating cost of the refrigeration cycle system 1000.

[0091] Optionally, when the first circulation path 330 is running, the first regenerator starts to recover heat to heat the regenerator 210. It should be noted that because the generator 600 is equipped with a heating tube 30, when the heating tube 30 heats the lithium bromide solution in the generator 600, the temperature of the generator 600 will be high. Therefore, this application can achieve the heating purpose by setting the first regenerator to recover the waste heat on the generator 600 to heat the lithium bromide solution in the regenerator 210, which can effectively increase the concentration of the lithium bromide solution and promote the crystallization of the lithium bromide solution.

[0092] Optionally, after the lithium bromide solution crystallizes, heating can continue until the lithium bromide solution concentration reaches the set value (95%).

[0093] Optionally, such as Figure 1As shown, the heating assembly 400 also includes a second regenerator 410, which is used to recover the waste heat of the second circulation path 340. That is to say, the waste heat on the second circulation path 340 can also be used to heat the lithium bromide solution in the regenerator 210, which can also improve energy utilization and reduce the operating cost of the refrigeration cycle system 1000.

[0094] Optionally, the second regenerator 410 is located near the inlet of the cooling tower 800. During the operation of the second circulation path 340, the liquid temperature in the second circulation path 340 near the cooling tower 800 is relatively high, which has high utilization value. The second regenerator 410 is set up to recover the waste heat of the second circulation path 340 to heat the lithium bromide solution in the regenerator 210, so that the water in the lithium bromide solution continuously evaporates, the concentration of lithium bromide solution continuously increases until crystals are formed, thus achieving the heating purpose.

[0095] Advantageously, this application simultaneously provides a first regenerator and a second regenerator 410, which operate simultaneously to recover sufficient heat, thereby enabling the refrigerant in the regenerator 210 to rapidly become richer and improve heating efficiency.

[0096] In summary, in this application Figure 1 In the example, during the main cycle refrigeration (first cycle flow path 330 and second cycle flow path 340 are operating), refrigeration is achieved. During operation, heat can be recovered using the first and second regenerators 410 to heat the lithium bromide solution in the regenerator 210, promoting crystallization. After crystallization is complete in the regenerator 210, the first cycle flow path 330 and second cycle flow path 340 stop operating. The first control valve 510 and the second control valve 520 are opened to start the secondary cycle refrigeration. At this time, the crystallized lithium bromide solution absorbs vapor, improving absorption efficiency and thus enhancing refrigeration efficiency.

[0097] That is to say Figure 1 In the example, continuous cooling can be achieved while also improving cooling efficiency.

[0098] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the refrigeration cycle system 1000 also includes an adsorption component 900, which is connected to the regenerator 210. The vapor generated by the lithium bromide solution in the regenerator 210 is suitable for being drawn into the adsorption component 900 to further increase the concentration of the lithium bromide solution and improve its absorption efficiency.

[0099] Optionally, when the refrigeration cycle system 1000 starts the regeneration stage, the lithium bromide solution is first heated by the heating component 400 to increase the concentration of the lithium bromide solution. At this time, the steam generated during the heating process can be condensed into liquid water through the regeneration flow path 320 and flow into the evaporator 110. Subsequently, after the heating component 400 has been heating for a period of time, the adsorption component 900 is turned on to further absorb the steam in the regenerator 210 and some of the steam in the lithium bromide solution, so as to further increase the concentration of the lithium bromide solution and improve the absorption efficiency of the lithium bromide solution.

[0100] It should be noted that the heating element 400 mentioned here can be a heating wire.

[0101] Optionally, such as Figure 4 As shown, the adsorption assembly 900 includes a molecular sieve 910 and a third control valve 920, which is located on the connecting pipeline between the molecular sieve 910 and the regenerator 210. The third control valve 920 is used to control the opening and closing of the connection between the molecular sieve 910 and the regenerator 210. When the third control valve 920 is open, under the action of the pressure difference between the regenerator 210 and the molecular sieve 910, the molecular sieve 910 begins to adsorb the vapor in the regenerator 210, which further increases the concentration of the lithium bromide solution in the regenerator 210. At the same time, due to the heat absorption of the evaporation of the lithium bromide solution, the temperature of the lithium bromide solution decreases, accelerating the crystallization of the lithium bromide solution until the solution concentration reaches the set value.

[0102] In the description of this invention, features defined as "first," "second," and "third" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0103] Optionally, when the refrigeration cycle system 1000 starts the regeneration stage, the third control valve 920 is closed. At this time, the lithium bromide solution is heated by the heating component 400 and the vapor is flowed into the evaporator 110 through the regeneration flow path 320. After the heating component 400 has been heating for a period of time, the third control valve 920 is opened and the molecular sieve 910 begins to adsorb the vapor in the regenerator 210.

[0104] Specifically, when the refrigeration cycle system 1000 starts the regeneration stage, the third control valve 920 is closed, and the heating component 400 continuously heats the lithium bromide solution in the regenerator 210. Water evaporates continuously, and the solution concentration increases continuously until the solution concentration reaches the set value (70%). The solution begins to crystallize. At this time, the water vapor generated by the regenerator 210 is condensed into water by the first condenser 120 and stored in the evaporator 110. Subsequently, the third control valve 920 is opened. Under the action of the pressure difference between the regenerator 210 and the molecular sieve 910, the molecular sieve 910 begins to adsorb water vapor, which further increases the concentration of the lithium bromide solution. At the same time, due to the heat absorption of water evaporation in the lithium bromide solution, the temperature of the lithium bromide solution drops, accelerating the crystallization of the lithium bromide solution until the concentration of the lithium bromide solution reaches the set value (95%).

[0105] It should be noted that by using steam in the molecular sieve 910 adsorption regenerator 210, this application can greatly improve the adsorption capacity of the adsorption component 900.

[0106] Optionally, such as Figure 4 As shown, a heating wire 911 is also provided inside the molecular sieve 910. The heating wire 911 works to heat the water inside the molecular sieve 910 to evaporate the water inside the molecular sieve 910, thereby making the molecular sieve 910 reusable, extending the service life of the molecular sieve 910 and reducing the cost of use.

[0107] In some embodiments of the present invention, such as Figure 5 As shown, the refrigeration cycle system 1000 also includes a heat dissipation component 230, which is used to dissipate heat from the regenerator 210. The heat dissipation component 230 is configured to operate during the refrigeration phase and stop operating during the regeneration phase. Because heating the lithium bromide solution in the regenerator 210 to increase its concentration during the regeneration phase also raises the temperature of the lithium bromide solution, and lithium bromide solutions at higher temperatures have poor absorption performance, this application provides the heat dissipation component 230 to dissipate heat from the lithium bromide solution when the refrigeration cycle system 1000 is in operation during the refrigeration phase, thereby reducing the temperature of the lithium bromide solution and improving its absorption effect, that is, improving the refrigeration efficiency of the refrigeration cycle system 1000 of this application.

[0108] Alternatively, the heat dissipation component 230 may be a heat sink or a heat dissipation pad.

[0109] In some embodiments of the present invention, such as Figure 2 As shown, the evaporator 110 and the regenerator 210 are directly connected via a common pipeline, and both the refrigeration flow path 310 and the regeneration flow path 320 are formed within the common pipeline. This structure maximizes the simplification of the refrigeration cycle system 1000, reduces the production cost of the refrigeration cycle system 1000, and minimizes the volume of the refrigeration cycle system 1000.

[0110] Optionally, when the evaporator 110 and the regenerator 210 are directly connected via a common pipeline, the evaporator 110 is equipped with a refrigeration component. During the regeneration stage, the heating component 400 operates to heat the lithium bromide solution in the regenerator 210, increasing the concentration of the lithium bromide solution and causing it to crystallize. When the lithium bromide solution is heated, some of the water absorbed in the solution evaporates to form steam. At this time, the steam flows towards the evaporative refrigeration component 100 and into the evaporator 110 along the extension direction of the common pipeline. After entering the evaporator 110, the steam is converted into liquid water under the action of the refrigeration component to form refrigerant. During the refrigeration stage, the heating component 400 stops heating. At this time, the refrigerant in the evaporator 110 absorbs the heat of the refrigerant and vaporizes into steam. The highly concentrated lithium bromide solution in the regenerator 210 absorbs the steam in the evaporator 110 through the common pipeline, ensuring that the evaporator 110 can continuously cool the refrigerant, thereby achieving a refrigeration effect. During the process of absorbing steam, the concentration of lithium bromide solution in regenerator 210 decreases. Once the crystals of lithium bromide solution are completely melted and the concentration drops to a certain value, the refrigeration cycle ends. At this point, the regeneration mode can be run to reheat the lithium bromide solution in regenerator 210.

[0111] Optionally, a heat dissipation component 230 may also be provided on the regenerator 210 in the above example to dissipate heat from the lithium bromide solution and improve the absorption performance of the lithium bromide solution.

[0112] The following describes a refrigeration device according to an embodiment of the present invention.

[0113] A refrigeration device according to an embodiment of the present invention includes a refrigeration cycle system 1000. The refrigeration cycle system 1000 is the refrigeration cycle system 1000 described above, and the structure of the cold storage cycle system will not be described in detail here.

[0114] As can be seen from the above structure, the refrigeration equipment of the present invention, by adopting the aforementioned refrigeration cycle system 1000, can improve the refrigeration efficiency of the refrigeration equipment while reducing the size of the refrigeration equipment and enhancing the user experience.

[0115] The specific structure of the refrigeration cycle system 1000 in a specific embodiment of the present invention is described below with reference to the accompanying drawings. The embodiments of the present invention can be any combination of the foregoing technical solutions, and are not limited to the specific embodiments described below; all of these fall within the protection scope of the present invention.

[0116] Example 1

[0117] A refrigeration cycle system 1000, such as Figure 1As shown, it includes: an evaporative cooling assembly 100, an absorption and regeneration assembly 200, a cooling flow path 310, a regeneration flow path 320, a first circulation flow path 330, a second circulation flow path 340, a second regenerator 410, a first control valve 510, a second control valve 520, a generator 600, a second condenser 700, a cooling tower 800, a pump body 10, and a heat exchanger 20.

[0118] Among them, such as Figure 1 As shown, the evaporative refrigeration assembly 100 includes an evaporator 110 and a first condenser 120. The evaporator 110 is adapted to be filled with refrigerant and is provided with a refrigerant pipe 40. A pump body 10 is connected to the evaporator 110, and the pump body 10 is used to accelerate the circulation of refrigerant in the evaporator 110. The absorption and regeneration assembly 200 includes a regenerator 210 and an absorber 220, both of which are filled with lithium bromide solution. A refrigeration flow path 310 and a regeneration flow path 320 are connected between the evaporator 110 and the regenerator 210. A first condenser 120 is connected to the regeneration flow path 320 and located between the evaporator 110 and the regenerator 210. The vapor generated by the lithium bromide solution in the regenerator 210 enters the first condenser 120 through the regeneration flow path 320, condenses into water, and then enters the evaporator 110. The absorber 220 is connected to the refrigeration flow path 310 and located between the evaporator 110 and the regenerator 210. During the refrigeration stage, the vapor generated by the refrigerant in the evaporator 110 enters the absorber 220 through the refrigeration flow path 310. Partially diluted lithium bromide solution in the absorber 220 can flow into the regenerator 210.

[0119] The first control valve 510 is located on the connecting pipe between the absorber 220 and the regenerator 210, and the second control valve 520 is located on the connecting pipe between the evaporator 110 and the first condenser 120. Both the first control valve 510 and the second control valve 520 are configured to be closed during the regeneration stage and open during the refrigeration stage.

[0120] Part of the generator 600 is connected to the absorber 220 via the heat exchanger 20, and another part of the generator 600 is connected to the second condenser 700. The second condenser 700 is connected to the evaporator 110. The fluid in the first circulation path 330 is adapted to circulate in sequence from the evaporator 110, to the absorber 220, to the generator 600, and then to the second condenser 700. The refrigeration cycle system 1000 is configured such that the first circulation path 330 operates during the regeneration phase and stops operating during the refrigeration phase.

[0121] The cooling tower 800 is connected to the second circulation path 340, and the fluid in the second circulation path 340 is adapted to circulate in sequence from the cooling tower 800, to the absorber 220, and then to the second condenser 700.

[0122] The second regenerator 410 is installed on the second circulation path 340 and near the input end of the cooling tower 800, and the second regenerator 410 is installed near the pipeline connecting the generator 600.

[0123] During the regeneration stage, the first control valve 510 and the second control valve 520 are closed, and the first circulation path 330 and the second circulation path 340 are in operation. The steam in the evaporator 110 is absorbed by the lithium bromide solution in the absorber 220. The steam entering the absorber 220 reacts with a portion of the lithium bromide solution and absorbs the lithium bromide solution, thereby reducing its concentration. The reduced-concentration lithium bromide solution flows into the generator 600 under the action of the pump 10. The generator 600 is equipped with a heating tube 30. 0 is used to heat the lithium bromide solution in the generator 600 to increase the concentration of the lithium bromide solution. The increased concentration of the lithium bromide solution flows into the regenerator 210 through the regulating valve 50. The lithium bromide solution flowing from the absorber 220 to the generator 600 and from the generator 600 to the absorber 220 both exchange heat through the heat exchanger 20 to reduce the temperature of the lithium bromide solution flowing from the generator 600 to the absorber 220, thereby ensuring that the lithium bromide solution in the absorber 220 can effectively absorb steam.

[0124] During the heating process of the low-concentration lithium bromide solution, the generator 600 generates a large amount of steam. This steam flows into the second condenser 700 through the first circulation path 330. The second condenser 700 causes the steam to change into liquid water and flows into the evaporator 110 through the throttle valve 60 to replenish the refrigerant in the evaporator 110, forming a refrigeration cycle loop.

[0125] In this process, while the first circulation path 330 is operating, the second circulation path 340 is also operating. The cooling water in the cooling tower 800 flows along the extension direction of the second circulation path 340 under the action of the pump body 10. The cooling water first flows into the absorber 220, where it exchanges heat with the lithium bromide solution to lower the temperature of the lithium bromide solution, thereby improving its absorption performance. The cooled water then flows into the second condenser 700, where it reacts with the steam in the second condenser 700, causing the steam to turn into water. At this point, the cooling water... As the water temperature increases, the heated cooling water flows back into the cooling tower 800. When the higher-temperature cooling water flows from the second condenser 700 into the cooling tower 800, the second regenerator 410 recovers the heat from the cooling water and uses this heat to heat the lithium bromide solution in the regenerator 210, thereby increasing the concentration of the lithium bromide solution in the regenerator 210 and promoting the crystallization of the lithium bromide solution in the regenerator 210. During the heating process, the steam in the regenerator 210 flows into the first condenser 120, where the steam transforms into liquid water.

[0126] When the lithium bromide solution in the regenerator 210 crystallizes, the refrigeration cycle is activated. The first control valve 510 and the second control valve 520 are opened, and the first circulation path 330 and the second circulation path 340 stop operating. The steam in the evaporator 110 is absorbed into the absorber 220 under the dual action of the absorber 220 and the regenerator 210. The steam entering the absorber 220 reacts with part of the lithium bromide solution to reduce the concentration of the lithium bromide solution. The reduced concentration of the lithium bromide solution flows into the regenerator 210 to dilute the higher concentration of the lithium bromide solution in the regenerator 210. At the same time, the liquid water in the first condenser 120 flows into the evaporator 110, forming a refrigeration cycle loop.

[0127] Example 2

[0128] A refrigeration cycle system 1000, such as Figure 2 As shown, it includes: an evaporative cooling assembly 100, an absorption and regeneration assembly 200, a cooling flow path 310, a regeneration flow path 320, a heating assembly 400, and a refrigerant pipe 40.

[0129] The evaporative refrigeration assembly 100 includes an evaporator 110, which is suitable for being filled with refrigerant. The absorption and regeneration assembly 200 includes a regenerator 210, which is suitable for being filled with lithium bromide solution. The evaporator 110 and the regenerator 210 are directly connected through a common pipeline. The refrigeration flow path 310 and the regeneration flow path 320 are both formed in the common pipeline.

[0130] During the regeneration stage, the heating component 400 operates to heat the lithium bromide solution in the regenerator 210, increasing the concentration of the lithium bromide solution and causing the lithium bromide solution to crystallize. When the lithium bromide solution is heated, some of the water absorbed in the lithium bromide solution evaporates to form steam. At this time, along the extension direction of the common pipeline, the steam flows towards the evaporative cooling component 100 and flows into the evaporator 110. After entering the evaporator 110, the steam changes phase to liquid water to form a refrigerant.

[0131] During the refrigeration phase, the heating element 400 stops heating. At this time, the refrigerant in the evaporator 110 absorbs heat from the refrigerant and vaporizes into steam. The highly concentrated lithium bromide solution in the regenerator 210 absorbs the steam in the evaporator 110 through a shared pipeline, ensuring that the evaporator 110 can continuously cool the refrigerant, thereby achieving a refrigeration effect. During the steam absorption process, the concentration of the lithium bromide solution in the regenerator 210 decreases. Once the crystals in the lithium bromide solution are completely melted, the refrigeration cycle ends. At this point, the regeneration cycle can be run to reheat the lithium bromide solution in the regenerator 210.

[0132] Example 3

[0133] A refrigeration cycle system 1000, such as Figures 3-5 As shown, it includes: an evaporative cooling assembly 100, a first condenser 120, an absorption and regeneration assembly 200, a cooling flow path 310, a regeneration flow path 320, a heating assembly 400, a refrigerant pipe 40, an adsorption assembly 900, and a heat dissipation assembly 230.

[0134] The evaporative refrigeration assembly 100 includes an evaporator 110, which is suitable for being filled with refrigerant. The absorption regeneration assembly 200 includes a regenerator 210, which is suitable for being filled with lithium bromide solution. The first condenser 120 is connected to the regeneration flow path 320 and is located between the evaporator 110 and the regenerator 210. The vapor generated by the lithium bromide solution in the regenerator 210 enters the first condenser 120 through the regeneration flow path 320, condenses into water, and then enters the evaporator 110.

[0135] like Figure 4 As shown, the adsorption assembly 900 includes a molecular sieve 910 and a third control valve 920, which is located on the connecting pipe between the molecular sieve 910 and the regenerator 210. The heat dissipation assembly 230 is connected to the regenerator 210.

[0136] During the regeneration phase, such as Figure 4 As shown, the heating component 400 operates to heat the lithium bromide solution in the regenerator 210, increasing the concentration of the lithium bromide solution. After the heating component 400 heats for a period of time, the third control valve 920 is opened. Under the action of the pressure difference between the regenerator 210 and the molecular sieve 910, the molecular sieve 910 begins to adsorb the vapor in the regenerator 210, further increasing the concentration of the lithium bromide solution in the regenerator 210, so that the lithium bromide solution forms crystals. During the heating process of the heating component 400, some of the water absorbed in the lithium bromide solution evaporates to form vapor. At this time, along the extension direction of the regeneration flow path 320, the vapor flows into the first condenser 120 and condenses into liquid water, and then flows into the evaporator 110 to form refrigerant.

[0137] During the cooling stage, such as Figure 5 As shown, the heating component 400 stops heating, and the heat dissipation component 230 operates to lower the temperature of the lithium bromide solution in the regenerator 210. At this time, the refrigerant in the evaporator 110 absorbs heat from the refrigerant and vaporizes into steam. The lithium bromide solution in the regenerator 210, which has a higher concentration and lower temperature, absorbs the steam in the evaporator 110 through the refrigeration flow path 310, ensuring that the evaporator 110 can continuously cool the refrigerant, thereby achieving a cooling effect. During the process of absorbing steam, the concentration of the lithium bromide solution in the regenerator 210 decreases. After the crystals in the lithium bromide solution are completely melted, the refrigeration cycle ends, and the regeneration cycle can then be run to reheat the lithium bromide solution in the regenerator 210.

[0138] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0139] The working principle and operation of the refrigeration cycle system 1000 and other components of the refrigeration equipment having the refrigeration system 1000 according to embodiments of the present invention, such as the pump body 10 and the heating wire 911, are known to those skilled in the art and will not be described in detail here.

[0140] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0141] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigeration cycle system, characterized in that, include: An evaporative refrigeration assembly, the evaporative refrigeration assembly including an evaporator, the evaporator being adapted to be filled with refrigerant; An absorption and regeneration assembly includes a regenerator adapted to be filled with a lithium bromide solution. A refrigeration flow path and a regeneration flow path are connected between the absorption and regeneration assembly and the evaporative refrigeration assembly. The refrigeration cycle system has a regeneration stage and a refrigeration stage. In the regeneration stage, vapor generated by the lithium bromide solution in the regenerator enters the evaporative refrigeration assembly through the regeneration flow path. In the refrigeration stage, vapor generated by the refrigerant in the evaporator enters the absorption and regeneration assembly through the refrigeration flow path. A heating assembly for heating the regenerator to increase the concentration of the lithium bromide solution within the regenerator to induce crystallization; the heating assembly is configured to operate during the regeneration phase and cease operation during the cooling phase, wherein, during the cooling phase, the lithium bromide solution and its generated vapor do not circulate. The absorption and regeneration assembly further includes: an absorber connected between the evaporator and the regenerator, the absorber being adapted to be filled with a lithium bromide solution, and during the refrigeration stage, the vapor generated by the refrigerant in the evaporator enters the absorber through the refrigeration flow path; The absorption and regeneration assembly further includes a generator and a second condenser. The refrigeration cycle system further includes a first circulation path, wherein the fluid in the first circulation path is adapted to circulate in sequence from the evaporator to the absorber, to the generator, and then to the second condenser. The refrigeration cycle system is configured such that the first circulation path operates during the regeneration phase and stops operating during the refrigeration phase.

2. The refrigeration cycle system according to claim 1, characterized in that, The evaporative refrigeration assembly further includes a first condenser, which is connected between the evaporator and the regenerator. The vapor generated by the lithium bromide solution in the regenerator enters the first condenser through the regeneration flow path.

3. The refrigeration cycle system according to claim 1, characterized in that, Also includes: A first control valve is located on the connecting pipeline between the absorber and the regenerator, and the first control valve is configured to be closed during the regeneration phase and open during the cooling phase.

4. The refrigeration cycle system according to claim 2, characterized in that, Also includes: A second control valve is located on the connecting pipe between the evaporator and the first condenser. The second control valve is configured to be closed during the regeneration phase and open during the refrigeration phase.

5. The refrigeration cycle system according to claim 1, characterized in that, Also includes: The cooling tower, the refrigeration cycle system further includes a second circulation path, the fluid in the second circulation path being adapted to circulate in sequence from the cooling tower, to the absorber, and then to the second condenser.

6. The refrigeration cycle system according to claim 5, characterized in that, The heating component includes: A first regenerator is used to recover waste heat from the heat source of the generator; and / or The second regenerator is used to recover the waste heat of the second circulation path.

7. The refrigeration cycle system according to claim 1, characterized in that, Also includes: An adsorption assembly is connected to the regenerator, and the vapor generated by the lithium bromide solution in the regenerator is suitable for being drawn into the adsorption assembly.

8. The refrigeration cycle system according to claim 7, characterized in that, The adsorption component includes: A molecular sieve and a third control valve, wherein the third control valve is located on the connecting pipeline between the molecular sieve and the regenerator.

9. The refrigeration cycle system according to claim 1, characterized in that, Also includes: A heat dissipation assembly for dissipating heat from the regenerator, the heat dissipation assembly being configured to operate during the cooling phase and cease operation during the regeneration phase.

10. The refrigeration cycle system according to claim 1, characterized in that, The evaporator and the regenerator are directly connected through a common pipeline, and both the refrigeration flow path and the regeneration flow path are formed within the common pipeline.

11. A refrigeration device, characterized in that, Includes the refrigeration cycle system according to any one of claims 1-10.

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