A marine anti-turbulence refrigeration system and control method

Abstract

This invention provides a marine anti-turbulence refrigeration system and control method, comprising a compressor, a shell-and-tube condenser, a throttling device, a liquid receiver, and a vacuum pump connected in sequence. The shell-and-tube condenser has a first outlet. The liquid receiver includes a receiving cavity and a pressure plate; the pressure plate divides the receiving cavity into a gaseous working fluid storage cavity and a liquid working fluid storage cavity located below the gaseous working fluid storage cavity; the pressure plate is provided with micropores; the liquid working fluid storage cavity has a first working fluid inlet and a first working fluid outlet; the first working fluid inlet is connected to the first outlet; the first working fluid outlet is connected to the inlet of the throttling device; the gaseous working fluid storage cavity has a second working fluid outlet; the inlet of the vacuum pump is connected to the second working fluid outlet, and the outlet of the vacuum pump is connected to the inlet of the shell-and-tube condenser. When the ship experiences turbulence, the liquid receiver and the vacuum pump, working together or individually, can prevent gaseous refrigerant from entering the throttling device due to the turbulence.

Description

Technical Field

[0001] This invention relates to the field of marine air conditioning technology, and in particular to a marine anti-turbulence refrigeration system and control method. Background Technology

[0002] Marine air conditioning systems are used for overall ship temperature regulation and equipment cooling. The shell-and-tube condenser is one of the core components of a marine air conditioning system and is the most critical device for releasing the unit's heat load. The operating status of the shell-and-tube condenser directly affects the normal operation of the air conditioning system. When ships are exposed to strong winds or large waves, the marine air conditioning system is constantly in a rolling environment. Due to the long shell-and-tube condenser, when the ship rolls, the liquid refrigerant inside the condenser will slosh around. When the sloshing amplitude is large or due to inertia, the refrigerant outlet, which was originally in contact with the liquid refrigerant, will come into contact with the gaseous refrigerant due to the fluctuation of the liquid level. This causes the gaseous refrigerant to enter the throttling device downstream of the shell-and-tube condenser, reducing the cooling capacity of the refrigeration cycle and affecting the air conditioning's cooling capacity. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a marine anti-turbulence refrigeration system and control method that overcomes or at least partially solves the above problems. It can solve the problem that gaseous refrigerant enters the throttling device due to hull turbulence, so that even if the hull is turbulent, gaseous refrigerant cannot enter the throttling device, thus avoiding the impact of hull turbulence on the cooling capacity of the air conditioner.

[0004] Specifically, the present invention provides a marine anti-turbulence refrigeration system, comprising a compressor, a shell-and-tube condenser, and a throttling device connected in sequence, wherein the shell-and-tube condenser has a first outlet; and further comprising:

[0005] A liquid reservoir; the liquid reservoir includes a receiving cavity and a pressure plate horizontally disposed within the receiving cavity; the pressure plate divides the receiving cavity into a gaseous working fluid storage cavity and a liquid working fluid storage cavity located below the gaseous working fluid storage cavity; the pressure plate is provided with micropores; the liquid working fluid storage cavity has a first working fluid inlet and a first working fluid outlet; the first working fluid inlet communicates with the first outlet; the first working fluid outlet communicates with the inlet of the throttling device; the gaseous working fluid storage cavity has a second working fluid outlet;

[0006] A vacuum pump, the inlet of which is connected to the outlet of the second working fluid, and the outlet of which is connected to the inlet of the shell-and-tube condenser or the inlet of the compressor.

[0007] Optionally, the pressure plate is movably arranged vertically; the first working fluid inlet and the first working fluid outlet are both located below the pressure plate.

[0008] Optionally, the shell-and-tube condenser further has a second outlet, which is located above the first outlet;

[0009] A second working fluid inlet is also provided on the peripheral wall of the gaseous working fluid storage cavity, and the second outlet is connected to the second working fluid inlet;

[0010] The marine anti-turbulence refrigeration system also includes an opening and closing device; the opening and closing device is configured to control one of the first outlet and the second outlet to operate selectively.

[0011] Optionally, the lower part of the peripheral wall of the liquid working fluid storage cavity is provided with multiple annular grooves.

[0012] Optionally, the opening and closing device includes a first switching valve and a second switching valve;

[0013] The first switching valve is configured to control the opening and closing of the first outlet;

[0014] The second switching valve is configured to control the opening and closing of the second outlet.

[0015] Optionally, the reservoir further includes:

[0016] A drive device, wherein the drive device is disposed on the liquid reservoir;

[0017] The transmission device, through which the drive device drives the pressure plate to move up and down;

[0018] The driving device is a motor;

[0019] The transmission device includes meshing gears and racks.

[0020] The present invention also provides a control method for a marine anti-turbulence refrigeration system, wherein the marine anti-turbulence refrigeration system is any one of the marine anti-turbulence refrigeration systems described above; the control method includes:

[0021] The tilt angle of the liquid reservoir and the pressure of the gaseous working fluid storage chamber are obtained;

[0022] The operating status of the vacuum pump and the pressure plate is determined based on the tilt angle of the liquid reservoir and / or the pressure of the gaseous working fluid storage chamber.

[0023] Optionally, determining the operating state of the vacuum pump and the pressure plate based on the tilt angle of the liquid reservoir and / or the pressure of the gaseous working fluid storage chamber includes:

[0024] When the tilt angle of the liquid reservoir is greater than the first preset angle value, the vacuum pump is turned on and the pressure plate moves downward from the initial position at a first speed.

[0025] During the downward movement of the pressure plate, when the pressure in the gaseous working fluid storage chamber reaches a preset pressure value, the vacuum pump is turned off and the pressure plate stops moving.

[0026] After a preset time period, the tilt angle of the reservoir is obtained again.

[0027] When the tilt angle of the reservoir is less than or equal to the first preset angle value, the pressure plate moves upward to the initial position at a second speed;

[0028] The second speed is less than the first speed.

[0029] Optionally, the control method further includes:

[0030] When the tilt angle of the reservoir is greater than the second preset angle value, the first outlet is closed;

[0031] When the tilt angle of the reservoir is less than or equal to the second preset angle value, the first outlet is opened.

[0032] In the marine anti-turbulence refrigeration system and control method of the present invention, the marine anti-turbulence refrigeration system includes a compressor, a shell-and-tube condenser, a liquid receiver, a throttling device, an evaporator, and a vacuum pump arranged sequentially between the liquid receiver and the condenser. During normal operation, the liquid receiver is located between the shell-and-tube condenser and the throttling device. The liquid working fluid flows out through the first outlet of the shell-and-tube condenser, then enters the liquid working fluid storage chamber through the first working fluid inlet, and finally flows out through the first working fluid outlet into the inlet of the throttling device. When the ship experiences severe turbulence, the shell-and-tube condenser will sway significantly from side to side, especially vertical shell-and-tube condensers, causing significant lateral fluctuations in the liquid level within the condenser. This may cause the first outlet, originally connected to the liquid working fluid, to connect with the gaseous working fluid, resulting in some gaseous working fluid flowing out through the first outlet. When gaseous working fluid enters the first working fluid outlet, some of it can enter the gaseous working fluid storage chamber through micropores, while liquid and some gaseous working fluid remain in the liquid working fluid storage chamber. During severe shipboard rocking, the lateral fluctuation of the liquid working fluid level in the liquid working fluid storage chamber can be significant. By activating the vacuum pump, gaseous working fluid is removed from the gaseous working fluid storage chamber, and simultaneously, gaseous working fluid from the liquid working fluid storage chamber is also removed through micropores. The removed gaseous working fluid re-enters the shell-and-tube condenser, minimizing the presence of gaseous working fluid in the liquid working fluid storage chamber and reducing the likelihood of it entering the first working fluid outlet. Furthermore, the pressure plate limits the lateral fluctuation of the liquid working fluid in the liquid working fluid storage chamber and prevents the possibility of gaseous working fluid connecting to the first working fluid outlet, further reducing the likelihood of gaseous working fluid entering the first working fluid outlet. The system is equipped with a liquid receiver and a vacuum pump. When the ship is rocking, the liquid receiver and the vacuum pump can work together or independently to prevent gaseous refrigerant from entering the throttling device due to the ship's movement. This ensures that even if the ship is rocking, gaseous refrigerant cannot enter the throttling device, thus preventing the ship's movement from affecting the air conditioning's cooling capacity.

[0033] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0034] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0035] Figure 1 This is a schematic diagram of a marine anti-turbulence refrigeration system according to an embodiment of the present invention;

[0036] Figure 2This is a schematic structural diagram of a liquid reservoir according to an embodiment of the present invention;

[0037] Figure 3 This is a schematic flowchart of a control method for a marine anti-turbulence refrigeration system according to an embodiment of the present invention. Detailed Implementation

[0038] The following reference Figures 1 to 3 This invention describes a marine anti-turbulence refrigeration system and control method according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0039] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the 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.

[0042] Figure 1 This is a schematic diagram according to an embodiment of the present invention. Figure 1 As shown, and refer to Figure 2 This invention provides a marine anti-turbulence refrigeration system, comprising a compressor 10, a shell-and-tube condenser 20, a liquid receiver 30, a throttling device 40, and a vacuum pump 60 connected in sequence between the liquid receiver and the condenser. The shell-and-tube condenser has a first outlet, and the throttling device is located downstream of the shell-and-tube condenser. The liquid receiver 30 includes a receiving cavity and a pressure plate horizontally disposed within the receiving cavity. The pressure plate divides the receiving cavity into a gaseous working fluid storage cavity 31 and a liquid working fluid storage cavity 32 located below the gaseous working fluid storage cavity. The pressure plate has micropores. The liquid working fluid storage cavity has a first working fluid inlet and a first working fluid outlet. The first working fluid inlet communicates with the first outlet. The first working fluid outlet communicates with the inlet of the throttling device. The gaseous working fluid storage cavity has a second working fluid outlet. The inlet of the vacuum pump 60 communicates with the second working fluid outlet, and the outlet of the vacuum pump 60 communicates with the inlet of the shell-and-tube condenser.

[0043] In these embodiments, the marine anti-turbulence refrigeration system includes a compressor 10, a shell-and-tube condenser 20, a liquid receiver 30, a throttling device 40, an evaporator 50, and a vacuum pump 60 disposed between the liquid receiver and the condenser, arranged in sequence. During normal operation, the liquid receiver 30 is disposed between the shell-and-tube condenser 20 and the throttling device 40. The liquid working fluid flows out through the first outlet of the shell-and-tube condenser 20, then enters the liquid working fluid storage chamber through the first working fluid inlet 36, and finally flows out through the first working fluid outlet 39 into the inlet of the throttling device 40. When the ship experiences severe turbulence, the shell-and-tube condenser 20 will sway significantly from side to side, especially the vertical shell-and-tube condenser 20, causing significant lateral fluctuations in the liquid level within the shell-and-tube condenser 20. This may cause the first outlet, originally connected to the liquid working fluid, to connect with the gaseous working fluid, resulting in some gaseous working fluid flowing out through the first outlet. When gaseous working fluid enters the first working fluid outlet 39, some of the gaseous working fluid can enter the gaseous working fluid storage chamber 31 through the micropores 331, while the liquid working fluid and some gaseous working fluid remain in the liquid working fluid storage chamber 32. During severe turbulence of the ship, the lateral fluctuation of the liquid working fluid level in the liquid working fluid storage chamber can be significant. By activating the vacuum pump 60, the gaseous working fluid in the gaseous working fluid storage chamber is removed, and simultaneously, the gaseous working fluid in the liquid working fluid storage chamber is also removed through the micropores. The removed gaseous working fluid re-enters the shell-and-tube condenser 20, minimizing the presence of gaseous working fluid in the liquid working fluid storage chamber and reducing the possibility of gaseous working fluid entering the first working fluid outlet. Simultaneously, the pressure plate can limit the lateral fluctuation of the liquid working fluid in the liquid working fluid storage chamber and prevent the possibility of gaseous working fluid connecting with the first working fluid outlet, thereby reducing the likelihood of gaseous working fluid entering the first working fluid outlet. The system is equipped with a liquid receiver 30 and a vacuum pump 60. When the ship is rocking, the liquid receiver and the vacuum pump 60 can work together or independently to prevent gaseous refrigerant from entering the throttling device 40 due to the ship's rocking. This ensures that even if the ship is rocking, gaseous refrigerant cannot enter the throttling device 40, thus preventing the ship's rocking from affecting the air conditioner's cooling capacity.

[0044] In some other embodiments of the present invention, the outlet of the vacuum pump 60 is connected to the inlet of the compressor, and the gaseous working fluid enters the compressor to play a role in replenishing gas.

[0045] Furthermore, in some embodiments of the present invention, the pressure plate is movably disposed vertically. Both the first working fluid inlet and the first working fluid outlet are located below the pressure plate.

[0046] The pressure plate 33 is movable up and down. When the pressure plate 33 moves downward, it has a downward pressing effect, which can further limit the lateral fluctuation of the liquid working medium in the reservoir 30. The downward movement of the pressure plate 33 directly applies force to the liquid working medium, ensuring that the liquid surface fluctuation is smooth and preventing gaseous working medium from entering the first working medium outlet 39.

[0047] In some embodiments of the present invention, such as Figure 2 As shown, the shell-and-tube condenser 20 also has a second outlet, which is located above the first outlet. A second working fluid inlet 37 is also provided on the peripheral wall of the gaseous working fluid storage chamber 31, and the second outlet communicates with the second working fluid inlet 37. The marine anti-turbulence refrigeration system also includes an opening and closing device. The opening and closing device is configured to control the selective operation of either the first outlet or the second outlet.

[0048] In these embodiments, one of the first and second outlets operates. When the ship experiences moderate turbulence, the lateral fluctuation of the liquid working fluid is small, and the lower first outlet opens, allowing the working fluid to flow out and enter the liquid working fluid storage chamber. When the ship experiences significant turbulence, the lateral fluctuation of the liquid working fluid is larger, and the upper second outlet opens, allowing the working fluid to flow out and enter the upper gaseous working fluid storage chamber. The liquid working fluid then flows downward through the micropores 331 into the liquid working fluid storage chamber. The downward flow of liquid working fluid can suppress the fluctuation of the liquid working fluid surface in the liquid working fluid storage chamber. Furthermore, since the vacuum pump 60 is connected to the gaseous working fluid storage chamber, the pressure inside the gaseous working fluid storage chamber is negative when the vacuum pump 60 is working. This negative pressure environment facilitates the separation of the gaseous and liquid working fluids entering the gaseous working fluid storage chamber from the second inlet, and also helps to prevent gaseous refrigerant from entering the throttling device 40.

[0049] In some embodiments of the present invention, a plurality of annular grooves are provided on the lower part of the peripheral wall of the liquid working medium storage cavity. In some embodiments, the plurality of annular grooves are provided on the peripheral wall of the liquid working medium storage cavity, and the plurality of annular grooves are parallel to each other and spaced apart. The plurality of annular grooves can eliminate or reduce the fluctuation of the liquid working medium surface in the liquid working medium storage cavity, and also ensure that only the liquid working medium flows out of the first working medium outlet 39.

[0050] In some embodiments of the present invention, the liquid reservoir 30 further includes a driving device and a transmission device. The driving device is disposed on the liquid reservoir 30. The driving device drives the pressure plate 33 to move up and down via the transmission device.

[0051] Furthermore, in some embodiments of the present invention, the driving device is an electric motor. The transmission device includes a gear 34 and a rack 35 that mesh with each other. The motor is mounted on the reservoir 30, the rack 35 is connected to the pressure plate 33, and the gear 34 is connected to the output shaft of the motor. The gear 34 rotates as the output shaft of the motor rotates, and the rotation of the gear 34 drives the pressure plate 33 to move up and down with the rack 35. Of course, the motor and the gear 34 can both be mounted on the pressure plate 33, and the rack 35 can be mounted on the reservoir 30.

[0052] This invention also provides a control method for a marine anti-turbulence refrigeration system, wherein the marine anti-turbulence refrigeration system is any of the marine anti-turbulence refrigeration systems described in the above embodiments.

[0053] In some embodiments of the present invention, such as Figure 3 As shown, the control methods include:

[0054] S10: Obtain the tilt angle of the liquid reservoir and the pressure of the gaseous working fluid storage chamber.

[0055] S20: Determine the working status of the vacuum pump and pressure plate based on the tilt angle of the liquid reservoir and the pressure of the gaseous working fluid storage chamber.

[0056] In these embodiments, when the tilt angle of the liquid receiver 30 reaches a certain angle, and the working fluid flowing out of the shell-and-tube condenser is gaseous, resulting in excessive gaseous working fluid in the gaseous working fluid storage chamber and excessive pressure in the gaseous working fluid storage chamber, the pressure plate 33 can suppress the fluctuation of the liquid working fluid in the liquid working fluid storage chamber 32. At the same time, the vacuum pump 60 works to remove the gaseous working fluid from both the gaseous and liquid working fluid storage chambers 32, thus preventing the gaseous refrigerant from entering the throttling device 40 due to the hull pitching. This ensures that even if the hull pitches, the gaseous refrigerant cannot enter the throttling device 40, preventing the hull pitching from affecting the cooling capacity of the air conditioner.

[0057] In other embodiments of the present invention, the operating state of the vacuum pump and the pressure plate can also be determined based on the tilt angle of the liquid reservoir. When the tilt angle of the liquid reservoir reaches a preset value, the vacuum pump and the pressure plate are activated.

[0058] In other embodiments of the present invention, the operating state of the vacuum pump and the pressure plate can also be determined based on the pressure in the gaseous working fluid storage chamber. The vacuum pump and the pressure plate are activated when the pressure in the gaseous working fluid storage chamber reaches a preset value.

[0059] In some embodiments of the present invention, the operating state of the vacuum pump and the pressure plate is determined based on the tilt angle of the liquid reservoir and / or the pressure of the gaseous working fluid storage chamber, including:

[0060] When the tilt angle of the liquid reservoir 30 is greater than the first preset angle value, the vacuum pump is turned on and the pressure plate 33 moves downward at the first speed.

[0061] During the downward movement of the pressure plate 33, when the pressure in the gaseous working fluid storage chamber 32 reaches the preset pressure value, the pressure plate 33 stops moving.

[0062] After a preset time period, the tilt angle of the reservoir 30 and the speed of the compressor are obtained again.

[0063] When the tilt angle of the liquid reservoir 30 is less than or equal to the first preset angle value and / or the speed of the compressor is less than or equal to the preset speed, the pressure plate 33 moves upward at a second speed; the second speed is less than the first speed.

[0064] When the tilt angle of the liquid reservoir 30 is greater than the first preset angle value, the pressure plate 33 moves downward rapidly, which helps to quickly limit the liquid level fluctuation in the liquid working medium storage chamber. The operation of the vacuum pump 60 can remove the gaseous working medium from the liquid working medium storage chamber 32 and the gaseous working medium storage chamber, preventing the gaseous working medium from entering the throttling device through the first working medium outlet. Moreover, the activation of the vacuum pump helps to reduce the pressure in the gaseous working medium storage chamber 31, which is beneficial to the separation of the gaseous and liquid working medium, reducing the amount of gaseous working medium entering the throttling device 40, and thus benefiting the refrigeration system. Here, the pressure plate 33 can be in the initial position or any moving position. At the same time, as the pressure plate moves downward and the vacuum pump continues to operate, the pressure in the gaseous working medium storage chamber 32 is negative and continuously decreases. When the pressure in the gaseous working medium storage chamber 32 reaches the preset pressure value, the vacuum pump is turned off and the pressure plate 33 stops moving. Here, the preset pressure value is negative. After a preset time period, the tilt angle of the reservoir 30 is measured again. When the tilt angle of the reservoir 30 is less than or equal to the first preset angle value, the possibility of the gaseous working medium flowing from the second working medium outlet 38 into the throttling device 40 decreases. The pressure plate 33 can then slowly move upward to its initial position at a low speed. Since the possibility of the gaseous working medium entering the reservoir is already very low, it is not necessary for the gaseous working medium to flow out from the second working medium outlet. Residing in the gaseous working medium storage chamber will not affect the operation of the reservoir. When the ship experiences severe turbulence again and the opening conditions are met, the vacuum pump and pressure plate movement are restarted. When the pressure in the gaseous working medium storage chamber reaches a positive and relatively large value, the vacuum pump is activated.

[0065] In some embodiments of the present invention, the control method of the marine anti-turbulence refrigeration system further includes: when the tilt angle of the liquid reservoir 30 is greater than a second preset angle value, opening the second outlet and closing the first outlet; when the tilt angle of the liquid reservoir 30 is less than or equal to the second preset angle value, closing the second outlet and opening the first outlet.

[0066] In other words, when the tilt angle of the reservoir 30 is large, the second outlet on the upper side opens, and the working fluid flows out through the second outlet and enters the gaseous working fluid storage chamber on the upper side. Then, the liquid working fluid flows downward through the micropores 331 into the liquid working fluid storage chamber. The liquid working fluid flowing downward can suppress the fluctuations of the liquid working fluid surface in the liquid working fluid storage chamber. When the tilt angle of the reservoir 30 is not large, the first outlet on the lower side opens, and the working fluid flows out through the first outlet and enters the liquid working fluid storage chamber. Here, the second preset angle can be equal to or unequal to the first preset angle.

[0067] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A marine anti-turbulence refrigeration system, comprising a compressor, a shell-and-tube condenser, and a throttling device connected in sequence, wherein the shell-and-tube condenser has a first outlet; characterized in that, Also includes: A liquid reservoir; the liquid reservoir includes a receiving cavity and a pressure plate horizontally disposed within the receiving cavity; the pressure plate divides the receiving cavity into a gaseous working fluid storage cavity and a liquid working fluid storage cavity located below the gaseous working fluid storage cavity; the pressure plate is provided with micropores; the liquid working fluid storage cavity has a first working fluid inlet and a first working fluid outlet; the first working fluid inlet communicates with the first outlet; the first working fluid outlet communicates with the inlet of the throttling device; the gaseous working fluid storage cavity has a second working fluid outlet; A vacuum pump, wherein the inlet of the vacuum pump is connected to the outlet of the second working fluid, and the outlet of the vacuum pump is connected to the inlet of the shell-and-tube condenser or the inlet of the compressor; The pressure plate is movably arranged vertically; the first working fluid inlet and the first working fluid outlet are both located below the pressure plate; The shell-and-tube condenser also has a second outlet, which is located above the first outlet; A second working fluid inlet is also provided on the peripheral wall of the gaseous working fluid storage cavity, and the second outlet is connected to the second working fluid inlet; The marine anti-turbulence refrigeration system also includes an opening and closing device; the opening and closing device is configured to control one of the first outlet and the second outlet to operate selectively.

2. The marine anti-turbulence refrigeration system according to claim 1, characterized in that, The lower part of the peripheral wall of the liquid working fluid storage cavity is provided with multiple annular grooves.

3. The marine anti-turbulence refrigeration system according to claim 1, characterized in that, The opening and closing device includes a first switching valve and a second switching valve; The first switching valve is configured to control the opening and closing of the first outlet; The second switching valve is configured to control the opening and closing of the second outlet.

4. The marine anti-turbulence refrigeration system according to claim 1, characterized in that, The liquid reservoir also includes: A drive device, wherein the drive device is disposed on the liquid reservoir; The transmission device drives the pressure plate to move up and down.

5. The marine anti-turbulence refrigeration system according to claim 4, characterized in that, The driving device is a motor; The transmission device includes meshing gears and racks.

6. A control method for a marine anti-turbulence refrigeration system, characterized in that, The marine anti-turbulence refrigeration system is the marine anti-turbulence refrigeration system according to any one of claims 1 to 5; the control method includes: The tilt angle of the liquid reservoir and the pressure of the gaseous working fluid storage chamber are obtained; The operating status of the vacuum pump and the pressure plate is determined based on the tilt angle of the liquid reservoir and / or the pressure of the gaseous working fluid storage chamber.

7. The control method for the marine anti-turbulence refrigeration system according to claim 6, characterized in that, The method of determining the operating state of the vacuum pump and the pressure plate based on the tilt angle of the liquid reservoir and / or the pressure of the gaseous working fluid storage chamber includes: When the tilt angle of the liquid reservoir is greater than the first preset angle value, the vacuum pump is turned on and the pressure plate moves downward from the initial position at a first speed. During the downward movement of the pressure plate, when the pressure in the gaseous working fluid storage chamber reaches a preset pressure value, the vacuum pump is turned off and the pressure plate stops moving. After a preset time period, the tilt angle of the reservoir is obtained again. When the tilt angle of the reservoir is less than or equal to the first preset angle value, the pressure plate moves upward to the initial position at a second speed; The second speed is less than the first speed.

8. The control method for the marine anti-turbulence refrigeration system according to claim 6, characterized in that, The control method further includes: When the tilt angle of the reservoir is greater than the second preset angle value, the first outlet is closed; When the tilt angle of the reservoir is less than or equal to the second preset angle value, the first outlet is opened.

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