High-pressure liquid bag blowdown device, blowdown system and ship

Abstract

The invention relates to the technical field of sewage disposal equipment, and discloses a high-pressure liquid bag sewage disposal device, a sewage disposal system and a ship. The high-pressure liquid bag sewage disposal device comprises a shell and a liquid bag, a first containing cavity is formed in the shell, and a first opening and a second opening are formed in the shell; the first opening and the second opening penetrate through the shell and selectively communicate with the first containing cavity. The liquid bag is located in the first containing cavity, a second containing cavity is formed in the liquid bag, the liquid bag is provided with a third opening communicated with the second containing cavity, and the third opening is communicated with the first opening; and at least part of the liquid bag is constructed into a flexible part, so that when clean seawater is input into the second accommodating cavity from the first opening, the volume of the liquid bag is increased and sewage in the first accommodating cavity is discharged, and when the clean seawater in the second accommodating cavity is discharged from the first opening, the volume of the liquid bag is reduced. According to the high-pressure liquid bag pollution discharge device, the energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the technical field of sewage disposal equipment, and particularly to a high-pressure liquid bladder sewage disposal device, a sewage disposal system, and a ship. Background Art

[0002] During ship navigation, a large amount of sewage is generated daily. Traditional sewage disposal systems that rely on gravity or pressure pumps have to rely on high-power pump machines and other equipment for assistance, which not only greatly increases energy consumption but also significantly raises operating costs. The performance of sewage disposal equipment is of great significance to operating efficiency and environmental protection. At the same time, traditional sewage disposal devices expose many insurmountable drawbacks when facing complex working conditions. For example, affected by seawater backpressure and seawater corrosion, some old ships have low energy utilization due to the high energy consumption of sewage disposal equipment. Therefore, how to reduce the energy consumption of sewage disposal devices is a technical problem that urgently needs to be solved today. Summary of the Invention

[0003] This application provides a high-pressure liquid bladder sewage disposal device, a sewage disposal system, and a ship, which reduce sewage disposal energy consumption.

[0004] To achieve the above object, the main technical solutions adopted in this application include: In a first aspect, an embodiment of this application provides a high-pressure liquid bladder sewage disposal device, including a housing and a liquid bladder. The housing has a first accommodation cavity inside, and the housing is provided with a first opening and a second opening. The first opening and the second opening penetrate the housing and are selectively communicated with the first accommodation cavity respectively; the liquid bladder is located in the first accommodation cavity, the liquid bladder has a second accommodation cavity inside, and the liquid bladder has a third opening communicated with the second accommodation cavity. The third opening is communicated with the first opening; wherein, at least part of the liquid bladder is configured as a flexible member, so that when clean seawater is input into the second accommodation cavity through the first opening, the volume of the liquid bladder increases and the sewage in the first accommodation cavity is discharged, and when the clean seawater in the second accommodation cavity is discharged from the first opening, the volume of the liquid bladder decreases.

[0005] The high-pressure liquid bladder sewage disposal device proposed in the embodiment of this application reduces the power required to discharge sewage, helps reduce sewage disposal energy consumption, provides a more economical solution for long-term and large-scale sewage disposal operations in some scenarios with limited energy supply, and can effectively isolate clean seawater from sewage, avoiding the mixing of clean seawater and sewage, ensuring a certain pressure difference between clean seawater and sewage, and being able to squeeze out sewage more fully, improving sewage disposal efficiency. At the same time, the liquid bladder can also absorb the flow noise during the input of clean seawater, improving the user experience.

[0006] Optionally, the ratio of the pressure of the sewage in the first accommodation cavity to the pressure of the clean seawater in the second accommodation cavity is less than or equal to 1.

[0007] In the above solution, the pressure of the clean seawater in the second accommodation cavity is greater than or equal to the pressure of the sewage in the first accommodation cavity. The clean seawater can smoothly squeeze the liquid bag by virtue of the pressure difference, causing the liquid bag to expand, thereby effectively pushing the sewage in the first accommodation cavity to be discharged through a specific opening. Since the ratio of the pressure of the sewage in the first accommodation cavity to the pressure of the clean seawater in the second accommodation cavity satisfies the above range, on the one hand, the device can achieve the effective squeezing of the liquid bag by the clean seawater and the discharge of the sewage without consuming too much energy to overcome the high pressure of the sewage. On the other hand, the relatively high pressure of the clean seawater can continuously and stably provide a squeezing force for the liquid bag, causing the liquid bag to expand and contract according to the design requirements, ensuring the smoothness of the sewage discharge process, and thus improving the sewage discharge efficiency.

[0008] Optionally, the liquid bag includes a bag body and a protruding end, the protruding end protrudes from the bag body, and the third opening is arranged on the protruding end.

[0009] In the above solution, the protruding end provides an independent installation position for the third opening. When installing and connecting relevant pipelines or equipment, the space can be better utilized. Compared with arranging the opening on the bag body, the protruding end can make the connecting components more conveniently connected to the third opening, avoiding damage to the bag body itself, being beneficial to maintaining the integrity and consistency of the bag body, and being conducive to the reasonable layout and miniaturization design of the entire device.

[0010] Optionally, the housing has a first flange, the first opening is arranged on the first flange and penetrates the first flange; The first accommodation cavity is further provided with a second flange. The protruding end includes a first section and a second section connected in sequence. The first section is connected to the bag body, the second flange is sleeved on the first section, and the second flange cooperates with the first flange to clamp and fix the second section.

[0011] In the above solution, the second flange is sleeved on the first section and cooperates with the first flange to clamp the second section, which can not only fix the liquid bag, but also play a protective role for the connecting part of the liquid bag to prevent it from being worn or damaged by the outside. At the same time, the cooperation between the two flanges also helps to form a good seal, preventing liquid from leaking from the connecting part of the liquid bag and the housing, and improving the sealing performance and reliability of the entire device.

[0012] Optionally, the high-pressure liquid bag sewage discharge device further includes a first gasket and a second gasket. The first gasket is clamped between the first flange and the second section, and the second gasket is clamped between the second section and the second flange.

[0013] In the above solution, a first gasket is provided between the first flange and the second section, and a second gasket is provided between the second flange and the second section, which can at least partially isolate the flange made of metal from the liquid bladder material. On the one hand, it can reduce the probability of the flange being corroded by seawater. On the other hand, it can further improve the sealing performance and connection stability, thereby reducing the probability of clean seawater mixing with sewage.

[0014] Optionally, the housing includes a first sub-housing and a second sub-housing. The first sub-housing is provided with a first flange, the second sub-housing is provided with a second opening, and the first sub-housing and the second sub-housing are detachably connected.

[0015] In the above solution, the first sub-housing and the second sub-housing that are detachably connected enclose a first accommodation cavity. Compared with an integral housing, this split structure is more convenient for the staff to operate. It is convenient for the staff to install and connect the liquid bladder and the second flange to the first sub-housing and then fixedly connect the second sub-housing and the first sub-housing. Especially in the case of limited space or complex installation positions, it can reduce the installation difficulty and improve the installation efficiency.

[0016] Optionally, the high-pressure liquid bladder sewage discharge device also has a first direction, and the first opening and the second opening are oppositely arranged along the first direction.

[0017] In the above solution, the first opening and the second opening are oppositely arranged along the first direction. That is to say, the first opening and the second opening are respectively located at both ends of the housing along the first direction. With this arrangement, the oppositely arranged first opening and second opening can form a clear flow path in the device. On the one hand, it can reduce the flow resistance of sewage in the second accommodation cavity and improve the sewage discharge efficiency, making the sewage discharge process smoother. On the other hand, it can reduce the probability of residual sewage in the second accommodation cavity and improve the sewage discharge effect.

[0018] Optionally, the housing has a fourth opening, and the fourth opening penetrates the housing and is selectively communicated with the first accommodation cavity. The fourth opening is adapted to selectively input sewage or compressed air into the first accommodation cavity.

[0019] In the above solution, the fourth opening is adapted to selectively input sewage or compressed air into the first accommodation cavity. By selecting to input sewage or compressed air into the first accommodation cavity, the device can achieve different functions. When inputting sewage, it can be used to collect and temporarily store sewage for subsequent treatment or discharge, which is a common function in sewage treatment systems. When inputting compressed air, the air pressure can be used to operate the liquid bladder or other components in the device. For example, by squeezing the liquid bladder with compressed air, operations such as discharging the clean seawater in the liquid bladder can be realized, increasing the functionality and applicability of the device.

[0020] Second aspect, an embodiment of the present application provides a sewage discharge system, including the high-pressure liquid bladder sewage discharge device as described in any one of the embodiments.

[0021] In the sewage discharge system proposed by the embodiment of the present application, since it includes the high-pressure liquid bladder sewage discharge device as described in any one of the above embodiments, the power required for the sewage discharge system to discharge sewage is reduced, which helps to reduce the overall energy consumption of the system, save energy costs, improve energy utilization efficiency, and the liquid bladder can absorb the flow noise during the input of clean seawater, which helps to reduce the noise generated during the operation of the sewage discharge system and improve the working environment of the crew on board.

[0022] Optionally, the sewage discharge system further includes a feed pump and a ballast tank, and the feed pump and the ballast tank are selectively communicated with the first opening.

[0023] In the above solution, the pressure of the clean seawater entering the first opening from the feed pump is approximately equal to the pressure of the sewage in the first accommodation cavity. Thus, the pressure inside and outside the liquid bladder is approximately equal, and sewage discharge can be achieved only by increasing the volume of the liquid bladder, reducing the energy consumption during the sewage discharge process. The clean seawater in the second accommodation cavity can enter the ballast tank through the first opening, thereby realizing the recovery of clean seawater. At the same time, there is no load substitution, further reducing the energy consumption and contributing to the long-term stable operation of the sewage discharge system.

[0024] Third aspect, an embodiment of the present application provides a ship, including the high-pressure liquid bladder sewage discharge device as described in any one of the embodiments or the sewage discharge system as described in any one of the embodiments.

[0025] In the ship proposed by the embodiment of the present application, since it includes the high-pressure liquid bladder sewage discharge device as described in any one of the above embodiments or the sewage discharge system as described in any one of the embodiments, the energy consumption of the ship is reduced, which helps the ship to operate stably in the long term. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation manners of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. Obviously, the drawings in the following description are some implementation manners of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram of the overall sectional structure of some embodiments of the present application; Figure 2 is Figure 1 the enlarged schematic diagram of part A in Figure 3 It is a schematic diagram of the sewage discharge system in some embodiments of the present application.

[0028]

Description of the Attached Drawing Reference Numerals

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the description, claims, and accompanying drawings of the present application are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description, claims, or accompanying drawings of the present application are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0031] Reference to "embodiments" in this application means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "attach" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The term "and / or" in this application is merely a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0034] The term "a plurality of" appearing in this application refers to two or more (including two). Similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0035] A large amount of sewage is generated during the daily navigation of ships. Traditional sewage discharge systems that rely on gravity or pressure pumps have to rely on high-power pump machines and other equipment for assistance. This not only greatly increases energy consumption but also significantly raises the operating cost. The performance of sewage discharge equipment is of great significance to operating efficiency and environmental protection. At the same time, traditional sewage discharge devices expose many insurmountable drawbacks when facing complex working conditions. For example, affected by seawater backpressure and seawater corrosion, some old ships have low energy utilization rates due to the high energy consumption of sewage discharge equipment. Therefore, how to reduce the energy consumption of sewage discharge devices is a technical problem that urgently needs to be solved today.

[0036] In view of this, an embodiment of the present application provides a high-pressure liquid bladder sewage discharge device 1000, in which at least a part of the liquid bladder 200 is configured as a flexible member, so that when clean seawater is input into the second accommodation cavity 200a through the first opening 110, the volume of the liquid bladder 200 is increased to discharge the sewage in the first accommodation cavity 100a. Thus, the power required for sewage discharge is reduced, which helps to reduce the energy consumption of sewage discharge, and provides a more economical solution for long-term and large-scale sewage discharge operations in some scenarios with limited energy supply. At the same time, due to the reduction of energy consumption, problems associated with energy consumption such as equipment heating are also reduced, which further improves the stability and reliability of equipment operation, reduces the frequency of equipment maintenance and maintenance costs, and greatly extends the overall service life of the high-pressure liquid bladder sewage discharge device 1000.

[0037] The high-pressure liquid bladder sewage discharge device 1000 proposed in the embodiment of the present application will be described below with reference to the accompanying drawings.

[0038] Please refer to Figure 1 and Figure 2 , the high-pressure liquid bladder sewage discharge device 1000 according to the first aspect embodiment of the present application includes: a housing 100 and a liquid bladder 200.

[0039] The housing 100 has a first accommodation cavity 100a inside. It can be understood that the first accommodation cavity 100a can function to collect or temporarily store sewage. The housing 100 is provided with a first opening 110 and a second opening 120. The first opening 110 and the second opening 120 penetrate the housing 100 and are selectively communicated with the first accommodation cavity 100a respectively. With this setting, the first opening 110 and the second opening 120 can be conducted with the first accommodation cavity 100a according to actual needs.

[0040] As an example, the first opening 110 and the second opening 120 are respectively connected with valves having a locking function such as a stop valve, a check valve or a ball valve. The present application does not limit this. When it is necessary to close the first opening 110 and the second opening 120 to seal the first accommodation cavity 100a, the valves corresponding to the first opening 110 and the second opening 120 are locked, so as to realize the closing of the first opening 110 and the second opening 120.

[0041] However, affected by seawater backpressure and seawater corrosion of the outer shell, the sewage discharge device often requires a large amount of power to achieve rapid sewage discharge. Based on this, in order to reduce the energy consumption of the sewage discharge device, reduce the occurrence of seawater corrosion of the outer shell, and improve the service life of the sewage discharge device, the present application provides a liquid bladder 200 in the first accommodation cavity 100a.

[0042] Please refer to Figure 1, the liquid sac 200 is located in the first accommodation cavity 100a. There is a second accommodation cavity 200a inside the liquid sac 200. It can be understood that the second accommodation cavity 200a can be used to accommodate clean seawater. The liquid sac 200 has a third opening 230 communicating with the second accommodation cavity 200a. That is to say, clean seawater can enter or flow out of the second accommodation cavity 200a through the third opening 230.

[0043] The third opening 230 communicates with the first opening 110. That is to say, clean seawater enters the second accommodation cavity 200a successively through the first opening 110 and the third opening 230, so that clean seawater will not enter the first accommodation cavity 100a. Clean seawater can also flow out of the second accommodation cavity 200a successively through the third opening 230 and the first opening 110. With this setting, clean seawater and sewage flow through different openings respectively, realizing the isolation of clean seawater and sewage, reducing the probability of clean seawater corroding the device, and improving the service life of the device.

[0044] It can be understood that clean seawater and sewage are located in different accommodation spaces respectively, realizing the effective isolation of clean seawater and sewage, avoiding the mixing of clean seawater and sewage, and also ensuring that there is a certain pressure difference between clean seawater and sewage, which can squeeze out sewage more fully and improve the sewage discharge efficiency.

[0045] Furthermore, due to the influence of seawater back pressure, it is difficult to completely discharge the sewage in the first accommodation cavity 100a, resulting in sewage remaining in the first accommodation cavity. Based on this, in order to further improve the sewage discharge efficiency, a part of the liquid sac 200 in this application is set as a flexible part.

[0046] That is to say, at least part of the liquid sac 200 is constructed as a flexible part. When clean seawater is input from the first opening 110 into the second accommodation cavity 200a of the liquid sac 200, the volume of the liquid sac 200 increases and discharges the sewage in the first accommodation cavity 100a. When the clean seawater in the second accommodation cavity 200a is discharged from the first opening 110, the volume of the liquid sac 200 decreases.

[0047] In the above solution, by constructing at least part of the liquid sac 200 as a flexible part, the volume of the liquid sac 200 can increase with the increase of clean seawater in the internal second accommodation cavity 200a. That is to say, when clean seawater is input from the first opening 110 into the second accommodation cavity 200a of the liquid sac 200, the volume of the liquid sac 200 increases, which can strongly squeeze the sewage in the first accommodation cavity 100a and discharge it from the second opening 120.

[0048] Since at least part of the liquid sac 200 is a flexible part, the outer surface of the liquid sac 200 can adaptively change during the volume increase process, which can play a guiding role for sewage, squeeze out sewage more fully, and improve the sewage discharge efficiency.

[0049] When the clean seawater in the second accommodating cavity 200a is discharged from the first opening 110, the volume of the liquid sac 200 will decrease as the internal clean seawater decreases. That is to say, when the clean seawater in the liquid sac 200 flows out from the first opening 110, the volume of the liquid sac 200 also decreases accordingly, so that the first accommodating cavity 100a can accommodate sewage again. Since the flexible liquid sac 200 can flexibly change its own shape and volume, it is beneficial to adapt to different sewage discharge requirements and working environments.

[0050] In addition, the flexible design of the liquid sac 200 can buffer the pressure impact during the input and output of clean seawater, reduce the wear and corrosion of the housing 100 and other components. At the same time, the liquid sac 200 can also absorb the flow noise during the input of clean seawater, improving the user experience.

[0051] As an example, the entire liquid sac 200 is constructed as a flexible member. At this time, when clean seawater is input into the second accommodating cavity 200a from the first opening 110, the volume of the liquid sac 200 increases as the clean seawater in the second accommodating cavity 200a increases, and deforms under the extrusion of the clean seawater and sewage.

[0052] It can be understood that during the volume increase process, the outer surface of the liquid sac 200 can adaptively change, improving the discharge efficiency of sewage at different positions in the first accommodating cavity 100a, effectively reducing sewage residue. And for the first accommodating cavity 100 with different shapes, the liquid sac 200 has better applicability, which can improve the sewage discharge efficiency for the first accommodating cavity 100 with different shapes.

[0053] At the same time, under different working conditions, such as when the pressure of the input clean seawater changes, the overall flexible liquid sac 200 can change its shape more quickly, realizing the rapid extrusion of the sewage in the first accommodating cavity 100a towards the direction of the second opening 120, ensuring the stability and efficiency of the sewage discharge process.

[0054] In addition, the flexible material has good elasticity. During the input and discharge of clean seawater, it can reduce the pressure change of the liquid sac 200 caused by its own rigid structure, making the clean seawater flow in and out of the liquid sac 200 more smoothly, improving the working efficiency of the device.

[0055] When the clean seawater in the second accommodating cavity 200a flows out from the first opening 110, the volume of the liquid sac 200 decreases as the clean seawater in the second accommodating cavity 200a decreases, thereby reducing the space occupied by the liquid sac 200 in the first accommodating cavity 100a, facilitating the first accommodating cavity 100a to re-collect sewage, thus improving the space utilization rate, being able to make the most of the space, and improving the sewage discharge efficiency.

[0056] As an example, a part of the liquid sac 200 is configured as a flexible member. At this time, when clean seawater is input into the second accommodating cavity 200a from the first opening 110, the volume of the liquid sac 200 increases as the clean seawater in the second accommodating cavity 200a increases. The flexible part of the liquid sac 200 deforms when the clean seawater is input, increasing the contact area with the sewage in the second accommodating cavity 200a, better squeezing the sewage in the first accommodating cavity 100a, and prompting the sewage to be discharged, thereby achieving a higher efficiency of sewage discharge.

[0057] Under different working pressures, the flexible part of the liquid sac 200 can adapt to the pressure change through its own expansion and contraction, stably discharge the sewage, and reduce the influence of small fluctuations in pressure on the sewage discharge effect.

[0058] The non-flexible part of the liquid sac 200 can provide certain structural support, making the liquid sac 200 have better overall stability. For example, in a high-pressure environment, the rigid part can withstand a large pressure, preventing the liquid sac 200 from deforming excessively or even rupturing, thereby ensuring the safe and reliable operation of the device. The partial rigid structure also helps the liquid sac 200 to maintain a certain shape and stabilize its position in the first accommodating cavity 100a, making the input of clean seawater and the discharge of sewage more regular and controllable, reducing the occurrence probability of large displacements or distortions of the liquid sac 200 during operation, and improving the stability of the sewage discharge process.

[0059] In addition, the non-flexible part can be designed into a specific shape to optimize the flow channels of clean seawater and sewage, make the fluid flow more smoothly in the device, reduce the flow resistance and energy loss, and further improve the sewage discharge efficiency and the overall performance of the device.

[0060] For example, in the direction perpendicular to the first opening 110 to the second opening 120, a part of the liquid sac 200 is set as a non-flexible structure, and another part is set as a flexible structure. When clean seawater is input into the second accommodating cavity 200a from the first opening 110, the flexible structure of the liquid sac 200 deforms, the volume of the liquid sac 200 increases, and the sewage is squeezed between the non-flexible structure of the liquid sac 200 and the side wall of the first accommodating cavity 100a, thereby forming a flow path from the first opening 110 to the second opening 120, facilitating the centralized and rapid discharge of sewage, and further improving the sewage discharge efficiency.

[0061] In some other embodiments, the ratio of the pressure of the sewage in the first accommodating cavity 100a to the pressure of the clean seawater in the second accommodating cavity 200a is less than or equal to 1. That is to say, the pressure of the clean seawater in the second accommodating cavity 200a is greater than or equal to the pressure of the sewage in the first accommodating cavity 100a. The clean seawater can smoothly squeeze the liquid sac 200 by virtue of the pressure difference, causing the liquid sac 200 to expand, thereby effectively pushing the sewage in the first accommodating cavity 100a to be discharged through a specific opening.

[0062] In the above solution, since the ratio of the pressure of the sewage in the first accommodation cavity 100a to the pressure of the clean seawater in the second accommodation cavity 200a satisfies the above range, on the one hand, the device can realize the extrusion and rapid discharge of the sewage without consuming too much energy to overcome the high pressure of the sewage. Compared with the situation of discharging sewage by overcoming a large pressure difference, it can reduce the energy consumption of the power equipment for transporting clean seawater and lower the energy consumption cost of the entire sewage discharge process.

[0063] On the other hand, the pressure of the clean seawater is relatively high, which can continuously and stably provide an extrusion force for the liquid sac 200, enabling the liquid sac 200 to expand and contract according to the design requirements, ensuring the smoothness of the sewage discharge process, and thus improving the sewage discharge efficiency.

[0064] As an example, a seawater pump with a head of 5m - 20m can be selected to input clean seawater into the second accommodation cavity 200a through the first opening 110. On the one hand, it can achieve sewage discharge without consuming too much energy. On the other hand, it can quickly discharge the sewage through a small pressure difference, improving the sewage discharge efficiency.

[0065] In some other embodiments, please refer to Figure 1 and Figure 2 , the liquid sac 200 includes a sac body 210 and a protruding end 220. The protruding end 220 protrudes from the sac body 210, and a third opening 230 is provided on the protruding end 220.

[0066] In the above solution, the protruding end 220 provides an independent installation position for the third opening 230. When installing and connecting relevant pipes or equipment, the space can be better utilized. Compared with setting the opening on the sac body 210, the protruding end 220 can make the connecting components more conveniently connected to the third opening 230, avoiding damage to the sac body 210 itself, being beneficial to maintaining the integrity and consistency of the sac body 210, and being beneficial to the reasonable layout and miniaturization design of the entire device.

[0067] That is to say, the relatively independent position of the protruding end 220 is convenient for the operator to operate, and can more conveniently seal - connect the pipe or other connecting parts to the third opening 230, improving the installation efficiency and reducing the error and leakage risk during the installation process.

[0068] In addition, the setting of the protruding end 220 can separate the third opening 230 from the sac body 210, making the inlet and outlet positions of the clean seawater clearer. When inputting clean seawater into the second accommodation cavity 200a, it can play a role in guiding the clean seawater, being beneficial to the rapid entry of the clean seawater into the second accommodation cavity 200a.

[0069] In some other embodiments, please refer to Figure 1 andFigure 2 The housing 100 has a first flange 150, and a first opening 110 is provided in the first flange 150 and penetrates through the first flange 150.

[0070] That is to say, the first opening 110 is provided on the first flange 150 and penetrates through the first flange 150, enabling liquid to smoothly enter and exit the housing 100 through the first opening 110. Meanwhile, the structure of the flange also helps to reinforce the opening, preventing the housing 100 around the opening from deforming due to stress. Moreover, the existence of the first flange 150 facilitates the connection of the housing 100 with other components. Through connecting parts such as bolts and nuts, the housing 100 can be tightly connected to other equipment or pipelines.

[0071] In addition, a flange is a standardized connecting component with specific dimensions and specifications. Using the first flange 150 as the connection method facilitates the connection with other equipment or pipelines having the same specification flanges, improving the universality and interchangeability of the entire system and facilitating the installation, maintenance, and replacement of the equipment.

[0072] The first accommodation cavity 100a is also provided with a second flange 160. The protruding end 220 includes a first section 221 and a second section 222 connected in sequence. The first section 221 is connected to the bladder body 210, the second flange 160 is sleeved on the first section 221, and the second flange 160 cooperates with the first flange 150 to clamp and fix the second section 222. That is to say, the second flange 160 and the first flange 150 cooperate to clamp and fix the protruding end 220 of the liquid bladder 200, enabling the liquid bladder 200 to be firmly installed on the housing 100. It can be understood that this clamping method can evenly distribute the acting force, avoiding the displacement or shaking of the liquid bladder 200 during use due to liquid pressure or external force impact, ensuring the stability of the liquid bladder 200 and being beneficial to its normal operation.

[0073] In the above solution, the second flange 160 is sleeved on the first section 221 and cooperates with the first flange 150 to clamp the second section 222, which can not only fix the liquid bladder 200 but also protect the connection part of the liquid bladder 200 from external abrasion or damage. At the same time, the cooperation between the two flanges also helps to form a good seal, preventing the leakage of clean seawater or sewage from the connection part between the liquid bladder 200 and the housing 100, improving the sealing performance and reliability of the entire device.

[0074] It can be understood that designing the protruding end 220 as a two-piece type and fixing it with flanges can better meet the connection requirements between the liquid bladder 200 and the housing 100, facilitating the connection and fixation of the liquid bladder 200 and the housing 100, thereby optimizing the structural layout of the entire device.

[0075] The first section 221 is connected to the bladder body 210, and the second section 222 is clamped and fixed by the flanges, making the connection between the liquid bladder 200 and the housing 100 more stable. At the same time, the connection part is separated from the bladder body 210, reducing the influence of the deformation of the bladder body 210 on the connection reliability. Meanwhile, it is also convenient to set a sealing structure at the connection part to improve the overall performance of the device.

[0076] As an example, the first flange 150 and the second flange 160 can be fixedly connected by bolts, which are specifically set according to actual needs, and the present application does not limit this.

[0077] As an example, the first flange 150 can be a stainless steel flange or a nickel-based alloy flange. The present application does not limit this. It can effectively resist the erosion of chloride ions, avoid rust and corrosion, thereby ensuring the long-term stability of the connection between the first flange 150 and other components, and preventing problems such as connection loosening and liquid leakage caused by corrosion. At the same time, it has relatively high strength and can withstand the pressure changes during the operation of the equipment, ensuring the structural stability at the first opening 110 and guaranteeing the smooth entry and exit of clean seawater or sewage into and out of the housing 100.

[0078] As an example, the second flange 160 can be a titanium alloy flange or a plastic-lined flange. The present application does not limit this. Titanium alloy has excellent seawater corrosion resistance and relatively high strength. When the second flange 160 of the liquid bladder 200 is constructed as a titanium alloy flange or a plastic-lined flange, it can be firmly sleeved on the first section 221 in a seawater environment and tightly cooperate with the first flange 150 to clamp and fix the second section 222. Its corrosion resistance can prevent flange damage caused by seawater corrosion, ensure the stable clamping of the protruding end 220 of the liquid bladder 200, avoid the displacement or detachment of the liquid bladder 200, and ensure the long-term stable operation of the sewage discharge device in seawater.

[0079] On the basis of a common carbon steel flange, a corrosion-resistant plastic such as polytetrafluoroethylene is lined. This kind of flange not only utilizes the strength of carbon steel but also obtains excellent seawater corrosion resistance through the plastic lining. In seawater, the plastic lining can effectively isolate the contact between seawater and carbon steel and prevent corrosion. When used in the fixing structure of the liquid bladder 200, it can stably cooperate with the first flange 150 to clamp the protruding end 220 of the liquid bladder 200, and the cost is relatively lower than that of some pure corrosion-resistant alloy flanges, having better cost performance.

[0080] In some other embodiments, please refer to Figure 2 The high-pressure liquid bladder sewage discharge device 1000 further includes a first gasket 170 and a second gasket 180. The first gasket 170 is clamped between the first flange 150 and the second section 222, and the second gasket 180 is clamped between the second section 222 and the second flange 160.

[0081] That is to say, a first gasket 170 is arranged between the first flange 150 and the second section 222, and a second gasket 180 is arranged between the second flange 160 and the second section 222, which can at least partially isolate the flange made of metal from the material of the liquid bladder 200. On the one hand, the probability of the flange being corroded by seawater can be reduced. On the other hand, the sealing performance and connection stability can be further improved, thereby reducing the probability of clean seawater being mixed with sewage.

[0082] In the above solution, the first gasket 170 can fill the gap between the first flange 150 and the second section 222, and the second gasket 180 can fill the minute gap between the second flange 160 and the second section 222. Since there may be surface unevenness or machining errors at the connection part between the flange and the liquid bladder 200, the gasket can effectively fill these defects, making the connection surface more fitting, thereby preventing liquid from leaking from the connection part. In the high-pressure liquid bladder sewage disposal device 1000, especially when dealing with liquids such as seawater, good sealing performance is crucial to avoid corrosion and damage to the surrounding environment and equipment caused by seawater leakage.

[0083] During the operation of the device, the internal pressure change of the liquid bladder 200 and external environmental factors may cause a certain degree of deformation of the liquid bladder 200 and the flange. The gasket has certain elasticity and flexibility, can adapt to these deformations, and always maintains the sealing performance. Even under high pressure or complex working conditions, it can ensure the sealing performance of the connection part and prevent leakage due to deformation.

[0084] In addition, the first gasket 170 and the second gasket 180 can play a role in buffering pressure. When the flange is fastened by connecting parts such as bolts, the gasket can disperse the fastening force of the bolts, reducing the phenomenon of local stress concentration caused by the direct contact between the flange and the protruding end 220 of the liquid bladder 200 and the second section 222. This helps to protect the second section 222 of the liquid bladder 200 and the surface of the flange, preventing material deformation, wear or damage caused by excessive extrusion, and extending the service life of the connection components.

[0085] In some other embodiments, please refer to Figure 2 , the housing 100 includes a first sub-housing 101 and a second sub-housing 102. The first sub-housing 101 is provided with a first flange 150, the second sub-housing 102 is provided with a second opening 120, and the first sub-housing 101 and the second sub-housing 102 are detachably connected.

[0086] It is understandable that the detachable first sub - shell 101 and second sub - shell 102 enclose a first accommodation cavity 100a. Compared with the integral shell 100, this split - type structure is more convenient for the staff to operate. After the staff installs and connects the liquid sac 200 and the second flange 160 to the first sub - shell 101, they can fix - connect the second sub - shell 102 and the first sub - shell 101. Especially in the case of limited space or complex installation positions, it can reduce the installation difficulty and improve the installation efficiency.

[0087] In addition, when the equipment needs maintenance or repair, the first sub - shell 101 and the second sub - shell 102 can be easily disassembled, which is convenient for the staff to check each component inside the shell 100, such as the liquid sac 200, etc. For some vulnerable components, they can be replaced more conveniently without disassembling or replacing the entire shell 100, thus saving maintenance time and cost.

[0088] As an example, the first sub - shell 101 and the second sub - shell 102 can be fixedly connected by bolts or other means, which is specifically set according to actual needs, and the present application does not limit this.

[0089] In some other embodiments, please refer to Figure 1 and Figure 2 , the high - pressure liquid sac sewage discharge device 1000 also has a first direction X, and the first opening 110 and the second opening 120 are oppositely arranged along the first direction X.

[0090] In the above - mentioned solution, the first opening 110 and the second opening 120 are oppositely arranged along the first direction X. That is to say, the first opening 110 and the second opening 120 are respectively located at both ends of the shell 100 along the first direction X. With this setting, the oppositely arranged first opening 110 and second opening 120 can form a clear flow path inside the device.

[0091] When clean seawater is input into the second accommodation cavity 200a from the first opening 110, the clean seawater enters the second accommodation cavity 200a from the first opening 110 at one end. The volume of the liquid sac 200 increases as the clean seawater in the second accommodation cavity 200a increases, and the end of the liquid sac 200 connected to the first opening 110 expands first, so as to squeeze the sewage in the first accommodation cavity 100a towards the other end of the shell 100, so that the sewage flows out from the second opening 120 at the other end.

[0092] It is understandable that the sewage has an approximately straight - line flow path. On the one hand, it can reduce the flow resistance of the sewage in the second accommodation cavity 200a, improve the sewage discharge efficiency, and make the sewage discharge process smoother. On the other hand, it can reduce the probability of residual sewage in the second accommodation cavity 200a and improve the sewage discharge effect.

[0093] Meanwhile, the flow path that is approximately straight helps to avoid the occurrence of turbulent flow and eddy current phenomena in the fluid. Turbulent flow and eddy current can lead to energy loss, reduce the sewage discharge effect, and may also cause vibration and noise of the device. The relative arrangement of the first opening 110 and the second opening 120 enables the sewage to flow out of the first accommodation cavity 100a stably and the clean seawater to flow into the second accommodation cavity 200a stably, reducing unnecessary energy loss and improving the overall performance of the device.

[0094] During the equipment installation process, this way of arranging the openings relatively can better adapt to different space layout requirements. For example, in some seawater treatment facilities with limited space, the first opening 110 and the second opening 120 of the device can be respectively oriented in different directions, which is convenient for connecting with other pipelines or equipment, effectively utilizing the space and making the layout of the entire system more compact and reasonable.

[0095] In addition, the first opening 110 and the second opening 120 are arranged relatively along the first direction X, so that the forces received by the housing 100 during operation are distributed along the housing 100 relatively evenly. This uniform force application method helps to relieve the local pressure burden of the housing 100, improve the structural stability of the device, reduce the risk of damage such as deformation and rupture caused by uneven force, and extend the service life of the device.

[0096] In some other embodiments, please refer to Figure 1 and Figure 2 , the housing 100 has a fourth opening 140, and the fourth opening 140 penetrates through the housing 100 and is selectively communicated with the first accommodation cavity 100a. That is to say, the fourth opening 140 can be selectively conducted with the first accommodation cavity 100a according to actual needs.

[0097] Furthermore, the fourth opening 140 is adapted to selectively input sewage or compressed air into the first accommodation cavity 100a. By selecting to input sewage or compressed air into the first accommodation cavity 100a, the device can achieve different functions. When sewage is input, it can be used to collect and temporarily store sewage for subsequent treatment or discharge, which is a common function in the sewage treatment system. When compressed air is input, the air pressure can be used to operate the liquid bladder 200 or other components in the device. For example, by squeezing the liquid bladder 200 with compressed air, operations such as discharging the clean seawater in the liquid bladder 200 can be achieved, increasing the functionality and applicability of the device.

[0098] It can be understood that when compressed air is input, the air pressure can be utilized to push the liquid bag 200 to discharge the clean seawater in the second accommodation cavity 200a, so that the volume of the liquid bag 200 decreases as the clean seawater in the second accommodation cavity 200a decreases, thereby efficiently and rapidly reducing the occupation of the first accommodation cavity 100a by the liquid bag 200, and ensuring that the first accommodation cavity 100a can return to the working state of collecting sewage more quickly.

[0099] Specifically, the setting of the fourth opening 140 facilitates the integration of the high-pressure liquid bag sewage discharge device 1000 with other related devices. For example, a sewage conveying pipeline can be connected to the fourth opening 140 to achieve automatic collection and conveyance of sewage; at the same time, a compressed air source 511 can also be connected to the fourth opening 140 to facilitate pneumatic control and operation of the device. This selective connection method enables the device to better integrate into the entire sewage treatment or related process flow, improving the overall integration degree and automation level of the system.

[0100] In addition, by selectively communicating the fourth opening 140 with the first accommodation cavity 100a, when discharging sewage from the liquid bag 200, measures such as closing relevant valves can be taken to effectively prevent sewage from flowing back into the compressed air pipeline or sewage pipeline, ensuring the safe operation of the entire system.

[0101] The working process of the high-pressure liquid bag sewage discharge device 1000 is briefly described below.

[0102] When collecting sewage, the first opening 110 is closed, no clean seawater flows into or out of the second accommodation cavity 200a, the second opening 120 is closed to seal the first accommodation cavity 100a, the fourth opening 140 is communicated with the sewage conveying pipeline, and the first accommodation cavity 100a collects the sewage flowing in from the fourth opening 140.

[0103] When discharging sewage, the fourth opening 140 is closed, and no sewage or compressed air is input into the first accommodation cavity 100a. The first opening 110 is conducted, clean seawater flows into the second accommodation cavity 200a from the first opening 110, the volume of the liquid bag 200 increases as the clean seawater in the second accommodation cavity 200a increases, the increased volume of the liquid bag 200 squeezes the sewage in the first accommodation cavity 100a, the first accommodation cavity 100a is gradually occupied by the liquid bag 200, and the second opening 120 is conducted, and the sewage is discharged from the second opening 120.

[0104] After the sewage is discharged, the second opening 120 is closed to seal the first accommodating cavity 100a, the first opening 110 is conducted, the fourth opening 140 is connected to the compressed air source 511, and compressed air is input into the first accommodating cavity 100a through the fourth opening 140. The liquid bladder 200 is squeezed, and then the clean seawater in the internal second accommodating cavity 200a is discharged through the first opening 110. The volume of the liquid bladder 200 decreases as the clean seawater in the internal second accommodating cavity 200a decreases. Thus, the first accommodating cavity 100a is gradually occupied by compressed air. When the clean seawater in the internal second accommodating cavity 200a of the liquid bladder 200 decreases to the target amount, or when the volume of the liquid bladder 200 reaches the target size, the fourth opening 140 no longer inputs compressed air into the first accommodating cavity 100a, and is connected to the outside through a transfer member such as a transfer adapter or a reversing valve and is no longer connected to the compressed air source 511, so as to discharge the compressed air through the fourth opening 140, empty the inside of the first accommodating cavity 100a, and it can be used again to recover sewage.

[0105] As an example, the liquid bladder 200 can be made of high-performance fibers. High-performance fibers refer to a class of special fibers with special tolerance to external physical and chemical actions. High-performance fibers can be classified into organic high-performance fibers and inorganic high-performance fibers according to their chemical composition. Specifically, fiber materials such as aramid, polyurethane, nylon, and high-strength polyester can be selected.

[0106] Among them, aromatic polyamide fiber is abbreviated as aramid. At least 85% of its amide bonds (—CONH—) are directly connected to the benzene ring, including para-aramid fiber (PPTA), aramid III, etc., and the present application does not limit this. Para-aramid fiber not only has excellent tensile strength and tensile modulus, but also has excellent vibration damping, wear resistance, impact resistance, fatigue resistance, dimensional stability, chemical corrosion resistance, and dielectric properties. Aramid III has a heterocyclic structure introduced into the molecular main chain of poly(p-phenyleneterephthalamide) (PPTA), making it have better mechanical properties than PPTA fiber. At the same time, the introduction of the heterocyclic benzimidazole structure is also beneficial to improving the composite performance of the fiber and the resin.

[0107] Polyamide (abbreviated as PA) is the general name of thermoplastic resins containing repeating amide groups -NHCO- in the molecular main chain. The main varieties are nylon 6 and nylon 66, followed by nylon 1, nylon 12, etc. Nylon 66 has the performance characteristics of high mechanical strength, high softening point, self-lubrication, good processing fluidity, especially low friction coefficient and wear resistance. In addition, polyamide 66 has properties such as low initial modulus and good elasticity, making its fabric have the advantages of uniform stress distribution, large energy absorption, and good impact resistance under dynamic load, and has always been used as the main airbag fabric material.

[0108] Among them, polyurethane (PU) is a polymer containing urethane (-NHCOO-) groups, usually formed by the reaction of isocyanate (containing -NCO-) or its adduct with polyol containing active hydrogen (mainly the active hydrogen in hydroxyl groups). Polyurethane contains many polar groups that form hydrogen bonds, has strong surface electrostatic attraction and intermolecular forces, and has characteristics such as high strength, wear resistance, flexural resistance, low-temperature resistance, oil resistance, and chemical resistance, especially softness.

[0109] In a second aspect, an embodiment of the present application provides a sewage discharge system 2000, including the high-pressure liquid bladder sewage discharge device 1000 as described in any one of the embodiments.

[0110] In the above solution, since the sewage discharge system 2000 of the present application includes the high-pressure liquid bladder sewage discharge device 1000 as described in any one of the above embodiments, the power required for the sewage discharge system 2000 to discharge sewage is reduced, which helps to reduce the overall energy consumption of the system, save energy costs, improve energy utilization efficiency, and the liquid bladder 200 can absorb the flow noise during the input of clean seawater, which helps to reduce the noise generated during the operation of the sewage discharge system 2000 and improve the working environment of the crew on the ship.

[0111] In some other embodiments, please refer to Figure 3 , the sewage discharge system 2000 further includes a feed water pump 300 and a ballast tank 400. The feed water pump 300 can be connected to a clean seawater source 509, so as to facilitate obtaining clean seawater according to actual needs. The ballast tank 400 can be used to store clean seawater to meet the navigation needs.

[0112] The feed water pump 300 and the ballast tank 400 are selectively connected to the first opening 110. That is to say, the feed water pump 300 can input different amounts of clean seawater into the first opening 110 of the high-pressure liquid bladder sewage discharge device 1000 according to actual needs. Thus, the volume of the liquid bladder 200 increases as the clean seawater in the second accommodation cavity 200a increases. When it is necessary to discharge the clean seawater in the second accommodation cavity 200a, the feed water pump 300 can be turned off. Thus, the input of clean seawater into the first opening 110 is stopped, which facilitates the discharge of the clean seawater in the second accommodation cavity 200a from the first opening 110.

[0113] Specifically, the second opening 120 is connected to a sewage outlet 512, and the pressure of the sewage outlet 512 is approximately equal to the pressure of the clean seawater source 509. That is to say, the pressure of the clean seawater entering the first opening 110 from the feed water pump 300 is approximately equal to the pressure of the sewage in the first accommodation cavity 100a. Thus, the pressure inside and outside the liquid bladder 200 is approximately equal, and sewage discharge can be achieved only by increasing the volume of the liquid bladder 200, reducing the energy consumption during the sewage discharge process, and being beneficial to the long-term stable operation of the device.

[0114] When the ballast water tank 400 is in communication with the first opening 110, the clean seawater in the second accommodation cavity 200a can enter the ballast water tank 400 through the first opening 110, thereby realizing the recovery of clean seawater. At the same time, without load substitution, the energy consumption is further reduced, which helps the sewage disposal system 2000 to operate stably for a long time.

[0115] In a specific embodiment, a first valve 501 is provided between the first opening 110 and the ballast water tank 400. Both ends of the first valve 501 are respectively connected to the first opening 110 and the ballast water tank 400, so as to selectively communicate the ballast water tank 400 and the first opening 110.

[0116] The feed water pump 300 has a water inlet end 513 and a water outlet end 514. The water inlet end 513 of the feed water pump 300 is in communication with the clean seawater source 509.

[0117] A second valve 502 is provided between the first opening 110 and the feed water pump 300. Both ends of the second valve 502 are respectively connected to the first opening 110 and the water outlet end 514 of the feed water pump 300, so as to selectively communicate the feed water pump 300 and the first opening 110.

[0118] A third valve 503 is provided between the fourth opening 140 and the feed water pump 300. Both ends of the third valve 503 are respectively connected to the fourth opening 140 and the water outlet end 514 of the feed water pump 300, so as to selectively communicate the feed water pump 300 and the fourth opening 140.

[0119] The fourth opening 140 is further connected to a sewage source 510. A fourth valve 504 is provided between the fourth opening 140 and the sewage source 510. Both ends of the fourth valve 504 are respectively connected to the fourth opening 140 and the sewage source 510, so as to selectively communicate the sewage source 510 and the fourth opening 140.

[0120] A fifth valve 505 is provided between the second opening 120 and the sewage outlet 512. Both ends of the fifth valve 505 are respectively connected to the sewage outlet 512 and the second opening 120, so as to selectively communicate the sewage outlet 512 and the second opening 120.

[0121] A sixth valve 506 is provided between the feed water pump 300 and the clean seawater source 509. Both ends of the sixth valve 506 are respectively connected to the clean seawater source 509 and the water inlet end 513 of the feed water pump 300, so as to selectively communicate the clean seawater source 509 and the feed water pump 300.

[0122] A seawater filter 507 is further provided between the sixth valve 506 and the clean seawater source 509 for filtering seawater.

[0123] The fourth opening 140 is also connected to a compressed air source 511 which is used to provide compressed air. An eighth valve 508 and an exhaust muffler are sequentially arranged between the fourth opening 140 and the compressed air source 511. The eighth valve 508 is used to throttle the compressed air, and the exhaust muffler is used to reduce the noise when discharging the compressed air.

[0124] The different working processes of the sewage discharge system 2000 in some embodiments of the present application are briefly described below.

[0125] During sewage collection, the first valve 501 is closed, and the second valve 502 is closed, that is, the first opening 110 is closed, so that the clean seawater cannot enter or exit the second accommodation cavity 200a through the first opening 110. The third valve 503 is closed, so that the clean seawater cannot enter the first accommodation cavity 100a through the fourth opening 140. The fifth valve 505 is closed, that is, the second opening 120 is closed, so that the sewage cannot flow out through the second opening 120, and the seawater cannot flow back into the first accommodation cavity 100a from the second opening 120. The eighth valve 508 is closed to prevent the compressed air from entering the first accommodation cavity 100a or flowing back to the sewage source 510.

[0126] The fourth valve 504 is opened, so that the sewage can enter the first accommodation cavity 100a from the sewage source 510 through the fourth opening 140, thereby completing the sewage collection.

[0127] During sewage discharge, the first valve 501 is closed to prevent the water in the second accommodation cavity 200a from flowing into the ballast tank 400. The third valve 503 is closed to prevent the clean seawater from entering the first accommodation cavity 100a through the fourth opening 140. The fourth valve 504 is closed to prevent the sewage from continuing to enter the first accommodation cavity 100a, and at the same time prevent the sewage from flowing back to the sewage source 510 when being squeezed. The eighth valve 508 is closed to prevent the compressed air from entering the first accommodation cavity 100a and avoid incomplete sewage discharge caused by the compressed air squeezing the liquid bladder 200.

[0128] The second valve 502 is opened to conduct the water outlet end 514 of the water inlet pump 300 and the first opening 110. The sixth valve 506 is opened to conduct the clean seawater source 509 and the water inlet end 513 of the water inlet pump 300. Thus, the clean seawater from the clean seawater source 509 passes through the seawater filter 507 and then flows through the sixth valve 506 into the water inlet pump 300, and then is pumped to the first opening 110 and enters the second accommodation cavity 200a. The fifth valve 505 is opened, so that when the volume of the liquid bladder 200 increases with the increase of the clean seawater in the second accommodation cavity 200a and squeezes the sewage in the first accommodation cavity 100a, the sewage in the first accommodation cavity 100a can flow out through the fifth valve 505 to the sewage outlet 512.

[0129] When recovering the cleaned seawater, the second valve 502 is closed to prevent the cleaned seawater from entering the first opening 110, the third valve 503 is closed to prevent the cleaned seawater from entering the first accommodating cavity 100a, the fourth valve 504 is closed to prevent the compressed air from flowing back to the sewage source 510, and the fifth valve 505 is closed to prevent the high-pressure gas from flowing out of the sewage outlet 512.

[0130] The first valve 501 is opened to connect the ballast tank 400 and the second accommodating cavity 200a, and the eighth valve 508 is opened to connect the compressed air source 511 and the first accommodating cavity 100a. The compressed air flows through the fourth opening 140 into the first accommodating cavity 100a and squeezes the liquid bladder 200, forcing the cleaned seawater in the liquid bladder 200 to flow out of the first opening 110, and then flowing through the first valve 501 into the ballast tank 400, thereby completing the recovery of the cleaned seawater.

[0131] When cleaning the first accommodating cavity 100a, the first valve 501 is closed and the second valve 502 is closed. That is to say, the first opening 110 is closed to prevent the cleaned seawater from passing in and out of the second accommodating cavity 200a through the first opening 110, and the fourth valve 504 is closed to prevent the sewage from the sewage source 510 from entering the first accommodating cavity 100a, and the fifth valve 505 is closed to prevent the cleaned seawater from flowing out of the sewage outlet 512.

[0132] The third valve 503 is opened and the sixth valve 506 is opened. That is to say, the cleaned seawater source 509 is connected to the fourth opening 140. Thus, the cleaned seawater from the cleaned seawater source 509 is filtered by the seawater filter 507, flows through the sixth valve 506 into the feed pump 300, and is then pumped to the fourth opening 140 and enters the first accommodating cavity 100a, thereby completing the cleaning of the first accommodating cavity 100a.

[0133] As an example, the first valve 501, the second valve 502, the third valve 503, the fourth valve 504, the fifth valve 505, the sixth valve 506, and the eighth valve 508 can be configured as one or more of a globe valve, a check valve, a ball valve, and a throttle valve, and the present application does not limit this.

[0134] In a third aspect, an embodiment of the present application provides a ship, including the high-pressure liquid bladder sewage discharge device 1000 described in any one of the embodiments or the sewage discharge system 2000 described in any one of the embodiments.

[0135] In the above solution, the ship proposed by the embodiment of the present application includes the high-pressure liquid bladder sewage discharge device 1000 described in any one of the above embodiments or the sewage discharge system 2000 described in any one of the above embodiments. Thus, the energy consumption of the ship is reduced, which helps the ship to operate stably in the long term.

[0136] As an example, the ship can be a large ocean - going cargo ship, a scientific research ship, a luxury cruise ship, etc., and the present application does not limit this.

[0137] Large ocean - going cargo ships have a long sailing time and a long voyage at sea, and need to handle a large amount of domestic sewage, bilge water, etc. Reducing the energy consumption of the high - pressure liquid bladder sewage discharge device 1000 or the sewage discharge system 2000 can effectively improve the energy utilization rate and reduce the operation cost of the ship. Moreover, when the cargo ship sails in different sea areas, the requirements for sewage discharge are different. This device and system can flexibly respond to ensure compliance with sewage discharge, while reducing pollution to the marine environment and ensuring the long - term stable operation of the ship.

[0138] Scientific research ships often need to operate for a long time in complex marine environments, and have high requirements for energy utilization efficiency and equipment reliability. Reducing the energy consumption of the high - pressure liquid bladder sewage discharge device 1000 or the sewage discharge system 2000 enables more reasonable distribution of the limited energy of the scientific research ship for key tasks such as scientific exploration. At the same time, this system can effectively treat various types of sewage generated on the ship, avoid polluting the marine environment, protect the ecological balance of the scientific research operation area, and ensure the smooth progress of scientific research tasks.

[0139] There are a large number of people on luxury cruise ships, and the amount of sewage generated every day is large. Reducing the energy consumption of the high - pressure liquid bladder sewage discharge device 1000 or the sewage discharge system 2000 can efficiently treat sewage, reduce and improve the energy utilization rate, and reduce the operation cost. At the same time, good sewage discharge and treatment capabilities can also improve the overall environmental quality of the cruise ship, provide a more comfortable travel experience for passengers, and ensure the long - term stable operation of the cruise ship.

[0140] It should also be noted that the term "including", "comprising" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the said element.

[0141] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and each embodiment focuses on the differences from other embodiments. In particular, for system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and reference can be made to the corresponding parts of the method embodiments for relevant explanations.

[0142] The above are only examples of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0143] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A high-pressure liquid bladder sewage discharge device, characterized in that, Comprising: A housing having a first accommodation cavity therein. The housing is provided with a first opening and a second opening, and the first opening and the second opening penetrate through the housing and are selectively communicated with the first accommodation cavity respectively; A liquid bag located in the first accommodation cavity. The liquid bag has a second accommodation cavity therein, and the liquid bag has a third opening communicated with the second accommodation cavity, and the third opening is communicated with the first opening; Wherein, at least a part of the liquid bag is configured as a flexible member, so that when clean seawater is input into the second accommodation cavity through the first opening, the volume of the liquid bag increases and the sewage in the first accommodation cavity is discharged, and when the clean seawater in the second accommodation cavity is discharged from the first opening, the volume of the liquid bag decreases.

2. The high-pressure liquid bladder sewage discharge device according to claim 1, wherein, The ratio of the pressure of the sewage in the first accommodation cavity to the pressure of the clean seawater in the second accommodation cavity is less than or equal to 1.

3. The high-pressure liquid bladder sewage discharge device according to claim 1, characterized in that, The liquid bag includes a bag body and a protruding end, the protruding end protrudes from the bag body, and the third opening is arranged on the protruding end.

4. The high-pressure liquid bladder sewage discharge device according to claim 3, wherein, The housing has a first flange, and the first opening is arranged on the first flange and penetrates through the first flange; The first accommodation cavity is further provided with a second flange. The protruding end includes a first section and a second section connected in sequence. The first section is connected to the bag body, the second flange is sleeved on the first section, and the second flange cooperates with the first flange to clamp and fix the second section.

5. The high-pressure liquid bladder sewage discharge device according to claim 4, characterized in that The high-pressure liquid bag sewage discharge device further includes a first gasket and a second gasket. The first gasket is clamped between the first flange and the second section, and the second gasket is clamped between the second section and the second flange.

6. The high-pressure liquid bladder sewage discharge device according to claim 4, characterized in that The housing includes a first sub-housing and a second sub-housing. The first sub-housing is provided with the first flange, the second sub-housing is provided with the second opening, and the first sub-housing and the second sub-housing are detachably connected.

7. The high-pressure liquid bladder sewage discharge device according to claim 1, characterized in that The high-pressure liquid bag sewage discharge device further has a first direction, and the first opening and the second opening are oppositely arranged along the first direction.

8. The high-pressure liquid bladder sewage discharge device according to claim 1, characterized in that The housing has a fourth opening, the fourth opening penetrates through the housing and is selectively communicated with the first accommodation cavity, and the fourth opening is adapted to selectively input the sewage or compressed air into the first accommodation cavity.

9. A sewage disposal system, characterized in that, Comprising the high-pressure liquid bag sewage discharge device according to any one of claims 1-8.

10. The sewage disposal system according to claim 9, characterized in that, The sewage discharge system further includes a feed pump and a ballast tank, and the feed pump and the ballast tank are selectively communicated with the first opening.

11. A ship, characterized in that, Comprising the high-pressure liquid bag sewage discharge device according to any one of claims 1 to 8 or the sewage discharge system according to claim 9 or 10.

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