Seawater pressure stabilizing device

Abstract

The utility model discloses a seawater pressure stabilizing device, which relates to the technical field of seawater desalination and comprises a raw water tank, a filtering device, a reverse osmosis device, a first pressure transmitting device, a second pressure transmitting device and a pressure regulating device, the first pressure transmission device is matched with the first overflow valve, and raw water in the first pressure transmission device is pushed to the reverse osmosis device for desalination by utilizing seawater of which the pressure is greater than the conduction pressure value of the first overflow valve; and through the cooperation of the second pressure transmission device and the second overflow valve, the raw water in the second pressure transmission device is pushed to the first pressure transmission device by using the seawater with the pressure greater than the conduction pressure value of the second overflow valve to realize raw water supply, so that the raw water can be desalinated continuously. A filtering device is matched with a third overflow valve, so that seawater with relatively high pressure is filtered, and sufficient filtering of the seawater is realized; and the pressure regulating device ensures that the pressure of seawater flowing into the reverse osmosis device is not greater than a preset pressure value. And the installation and maintenance cost and the energy consumption cost are effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of seawater desalination, and in particular to a seawater pressure stabilizing device. Background Art

[0002] Desalination, which is the use of seawater to desalinate and produce fresh water, is an open source incremental technology for realizing water resource utilization. It can increase the total amount of fresh water and is not affected by time, space and climate. It can ensure a stable water supply for drinking water for coastal residents and water replenishment for industrial boilers.

[0003] Membrane method (RO) is a commonly used method for seawater desalination. It uses the principle of osmotic pressure. When a pressure greater than the osmotic pressure is applied to the seawater side, the water molecules in the seawater can penetrate through the osmotic membrane to the fresh water side. The ions produced by the salt in the seawater cannot pass through the osmotic membrane due to their large volume, thus separating the water molecules and salt molecules to obtain fresh water.

[0004] The desalination device designed based on the membrane method mainly includes a raw water treatment module and a desalination module; among them, since the osmotic membrane has a working pressure requirement, once the working pressure is exceeded, it is easy to cause the osmotic membrane to be damaged. Therefore, the pressure stabilizing device in the desalination module is particularly important; after the seawater is processed by the raw water treatment module to form raw water, it is stabilized by the pressure stabilizing device and then desalinated by the osmotic membrane. However, the existing raw water treatment module and the pressure stabilizing device are mostly independent of each other, and it is necessary to add a power pump to transport the raw water generated by the treatment to the pressure stabilizing device for pressure stabilization, which makes the installation and maintenance costs and energy consumption costs high. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a seawater pressure stabilizing device to reduce installation and maintenance costs and energy consumption costs.

[0006] In order to achieve the above technical purpose, the present application provides a seawater pressure stabilizing device, including a raw water tank, a filtering device, a reverse osmosis device, a first pressure transmission device, a second pressure transmission device and a pressure regulating device;

[0007] The first pressure transmission device is provided with a first chamber;

[0008] A first pressure-transmitting piston is provided in the first chamber, for dividing the first chamber into a first seawater chamber and a first raw water chamber;

[0009] The input end of the first seawater chamber is connected to a seawater supply source via a first seawater pipeline;

[0010] A first overflow valve is installed on the first seawater pipeline;

[0011] The second pressure transmission device is provided with a second chamber;

[0012] A second pressure-transmitting piston is provided in the second chamber, for dividing the second chamber into a second seawater chamber and a second raw water chamber;

[0013] The output end of the first seawater chamber is connected to the input end of the second seawater chamber through a second seawater pipeline;

[0014] A second overflow valve is installed on the second seawater pipeline;

[0015] The conduction pressure value of the second relief valve is greater than the conduction pressure value of the first relief valve;

[0016] The output end of the second seawater chamber is connected to the input end of the filtering device through a third seawater pipeline;

[0017] A third overflow valve is installed on the third seawater pipeline;

[0018] The conduction pressure value of the third relief valve is greater than the conduction pressure value of the second relief valve;

[0019] The first input end of the raw water tank is connected to the output end of the filtering device through a first water tank input pipeline;

[0020] The second input end of the raw water tank is connected to the output end of the first raw water chamber through a second water tank input pipeline;

[0021] The output end of the raw water tank is connected to the input end of the second raw water chamber through a water tank output pipeline;

[0022] The output end of the second raw water chamber is connected to the input end of the first raw water chamber through a chamber conducting pipe;

[0023] The output end of the first raw water chamber is also connected to the raw water input end of the reverse osmosis device through an osmosis input pipeline;

[0024] The pressure regulating device is installed on the second water tank input pipeline and the permeate input pipeline;

[0025] When the raw water pressure outputted from the first raw water chamber is greater than a preset pressure value, the pressure regulating device conducts the input pipeline of the second water tank;

[0026] When the pressure of the raw water outputted from the first raw water chamber is not greater than a preset pressure value, the pressure regulating device conducts the permeate input pipeline;

[0027] A first one-way valve is installed on the water tank output pipeline.

[0028] A second one-way valve is installed on the chamber communication pipeline.

[0029] Further, the third input end of the raw water tank is connected to the raw water output end of the reverse osmosis device through a third water tank input pipeline;

[0030] A third one-way valve is installed on the third water tank input pipeline.

[0031] Furthermore, the pressure regulating device includes a fourth overflow valve and an on-off mechanism;

[0032] The fourth overflow valve is installed on the second water tank input pipeline, and divides the second water tank input pipeline into a front section of the water tank input pipeline and a rear section of the water tank input pipeline;

[0033] The on-off mechanism is installed on the permeate input pipeline and connected to the rear section of the water pool input pipeline;

[0034] When the fourth overflow valve is turned on, the on-off mechanism is in a disconnected state of disconnecting the permeate input pipeline under the action of the raw water flowing through the fourth overflow valve;

[0035] When the fourth overflow valve is disconnected, the on-off mechanism is in a conducting state of conducting the permeate input pipeline under the action of the raw water flowing through the permeate input pipeline.

[0036] Furthermore, the on-off mechanism comprises a mechanism body, an upper on-off piston, a lower on-off piston and an on-off piston rod;

[0037] The mechanism body is provided with an upper on-off chamber and a lower on-off chamber located below the upper on-off chamber;

[0038] The upper on-off piston is slidably installed in the upper on-off chamber, and divides the upper on-off chamber into a first upper on-off chamber and a second upper on-off chamber;

[0039] The lower on-off piston is slidably installed in the lower on-off chamber, and divides the lower on-off chamber into a first lower on-off chamber and a second lower on-off chamber;

[0040] One end of the on-off piston rod extends into the second upper on-off chamber and is connected to the upper on-off piston, and the other end extends into the second lower on-off chamber and is connected to the lower on-off piston;

[0041] The mechanism body is provided with a first chamber water inlet connected to the first upper on-off chamber;

[0042] The mechanism body is also provided with a second chamber water inlet and a chamber water outlet communicating with the first lower on-off chamber;

[0043] The lower on-off piston can block the water outlet of the chamber;

[0044] The first chamber water inlet of the on-off mechanism is connected to the rear section of the water tank input pipeline;

[0045] The second chamber water inlet and the chamber water outlet of the on-off mechanism are connected in series in the permeate input pipeline.

[0046] Furthermore, the second chamber water inlet and the chamber water outlet are arranged on the inner side of the lower on-off chamber and are arranged opposite to each other;

[0047] The lower on-off piston is arranged to be inclined away from the upper on-off piston.

[0048] Furthermore, a fourth one-way valve is installed on the first water tank input pipeline.

[0049] Furthermore, a fifth one-way valve is installed on the second seawater pipeline.

[0050] Furthermore, a sixth one-way valve is installed on the third seawater pipeline.

[0051] Furthermore, the filtering device includes a filtering box and a filtering assembly installed in the filtering box.

[0052] Furthermore, the filter assembly includes a quartz sand filter layer, an activated carbon filter layer, a chemical dosing layer and an ultrafiltration layer which are arranged in sequence.

[0053] It can be seen from the above technical scheme that the seawater pressure stabilizing device of the present application, through the cooperation of the first pressure transmission device and the first overflow valve, uses the seawater with a pressure greater than the conduction pressure value of the first overflow valve to push the raw water in the first pressure transmission device to the reverse osmosis device for desalination; and through the cooperation of the second pressure transmission device and the second overflow valve, uses the seawater with a pressure greater than the conduction pressure value of the second overflow valve to push the raw water in the second pressure transmission device to the first pressure transmission device to achieve raw water replenishment, so that the raw water can be desalinated continuously. The seawater with a large pressure is also filtered through the cooperation of the filtering device and the third overflow valve to achieve sufficient filtration of the seawater; the pressure of the raw water output from the first pressure transmission device is further monitored through the pressure regulating device to ensure that the pressure of the seawater flowing into the reverse osmosis device is not greater than the preset pressure value, to avoid damage to the membrane material in the reverse osmosis device, and to extend the service life. The seawater pressure stabilizing device of the present application combines raw water treatment with pressure stabilizing treatment and does not require a power pump, effectively reducing installation and maintenance costs and energy consumption costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0055] Figure 1 A three-dimensional diagram of a seawater pressure stabilizing device provided in this application;

[0056] Figure 2 This is a schematic diagram of the principle of a seawater pressure stabilizing device provided in this application;

[0057] Figure 3 A schematic diagram of the structure of an on-off mechanism of a seawater pressure stabilizing device provided in this application;

[0058] In the figure: 100, reverse osmosis device;

[0059] 201. Original pool;

[0060] 301, first pressure transmission device; 311, first pressure transmission piston; 302, second pressure transmission device; 321, second pressure transmission piston;

[0061] 400, filter device; 401, filter box; 411, quartz sand filter layer; 412, activated carbon filter layer; 413, chemical dosing layer; 414, ultrafiltration layer;

[0062] 500, pressure regulating device; 51, mechanism body; 511, lower piston cylinder; 512, upper piston cylinder; 513, connecting column; 52, upper on-off piston; 53, lower on-off piston; 54, on-off piston rod; 551, first chamber water inlet; 552, second chamber water inlet; 553, chamber water outlet; 56, on-off elastic member;

[0063] 11. First seawater pipeline; 12. Second seawater pipeline; 13. Third seawater pipeline; 21. First overflow valve; 22. Second overflow valve; 23. Third overflow valve; 24. Fourth overflow valve; 31. First water pool input pipeline; 32. Second water pool input pipeline; 33. Third water pool input pipeline; 34. Water pool output pipeline; 35. Chamber conduction pipeline; 36. Permeate input pipeline; 41. First one-way valve; 42. Second one-way valve; 43. Third one-way valve; 44. Fourth one-way valve; 45. Fifth one-way valve; 46. Sixth one-way valve. DETAILED DESCRIPTION

[0064] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0065] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0066] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0067] The embodiment of the present application discloses a seawater pressure stabilizing device.

[0068] See also Figure 1 , an embodiment of a seawater pressure stabilizing device provided in the embodiments of the present application includes:

[0069] The raw water tank 201 , the filtering device 400 , the reverse osmosis device 100 , the first pressure transmission device 301 , the second pressure transmission device 302 and the pressure regulating device 500 .

[0070] A first chamber is provided in the first pressure transmission device 301; a first pressure transmission piston 311 is provided in the first chamber, which is used to separate the first chamber into a first seawater chamber and a first raw water chamber; the input end of the first seawater chamber is connected to a seawater supply source through a first seawater pipeline 11; wherein, the seawater supply source may be an existing wave energy device, which is used to collect and transport seawater; a first overflow valve 21 is installed on the first seawater pipeline 11, and the first overflow valve 21 has a conduction pressure value. When the pressure of the transported seawater is greater than the conduction pressure value of the first overflow valve 21, the first overflow valve 21 is conducted, and at this time, the seawater can enter the first seawater chamber of the first pressure transmission device 301.

[0071] A second chamber is provided in the second pressure transmission device 302; a second pressure transmission piston 321 is provided in the second chamber, which is used to separate the second chamber into a second seawater chamber and a second raw water chamber; the output end of the first seawater chamber is connected with the input end of the second seawater chamber through the second seawater pipeline 12; a second overflow valve 22 is installed on the second seawater pipeline 12; the conduction pressure value of the second overflow valve 22 is greater than the conduction pressure value of the first overflow valve 21; the second overflow valve 22 also has a conduction pressure value, when the seawater pressure in the first seawater chamber is greater than the conduction pressure value of the second overflow valve 22, the second overflow valve 22 is turned on, and at this time, seawater can enter the second seawater chamber of the second pressure transmission device 302 from the first seawater chamber.

[0072] The output end of the second seawater chamber is connected to the input end of the filter device 400 through the third seawater pipeline 13; a third overflow valve 23 is installed on the third seawater pipeline 13; the conduction pressure value of the third overflow valve 23 is greater than the conduction pressure value of the second overflow valve 22; the third overflow valve 23 also has a conduction pressure value. When the seawater pressure in the second seawater chamber is greater than the conduction pressure value of the third overflow valve 23, the third overflow valve 23 is turned on, and at this time, seawater can enter the filter device 400 from the second seawater chamber for sufficient filtration to form raw water.

[0073] The first input end of the raw water tank 201 is connected to the output end of the filter device 400 through the first water tank input pipeline 31 , and receives the raw water delivered from the filter device 400 through the first water tank input pipeline 31 .

[0074] The second input end of the raw water tank 201 is connected to the output end of the first raw water chamber through the second water tank input pipeline 32.

[0075] The output end of the raw water tank 201 is connected to the input end of the second raw water chamber through the water tank output pipeline 34; the output end of the second raw water chamber is connected to the input end of the first raw water chamber through the chamber conductive pipeline 35; raw water is supplied to the second raw water chamber through the water tank output pipeline 34, and then the first raw water chamber is supplied with water through the chamber conductive pipeline 35, so as to ensure that the first raw water chamber continuously has raw water and ensure the continuous desalination of seawater.

[0076] The output end of the first raw water chamber is also connected to the raw water input end of the reverse osmosis device 100 through the osmosis input pipeline 36; the raw water in the first raw water chamber is pushed by the first seawater chamber and enters the reverse osmosis device 100 through the osmosis input pipeline 36 for desalination.

[0077] The pressure regulating device 500 is installed on the second water tank input pipeline 32 and the osmosis input pipeline 36; when the raw water pressure output from the first raw water chamber is greater than the preset pressure value, the pressure regulating device 500 connects the second water tank input pipeline 32; when the raw water pressure output from the first raw water chamber is not greater than the preset pressure value, the pressure regulating device 500 connects the osmosis input pipeline 36; the preset pressure value is specifically determined according to the maximum pressure that the osmotic membrane in the reverse osmosis device 100 can withstand, but it should be noted that it is less than the conduction pressure of the first overflow valve 21, and there is no specific restriction.

[0078] A first one-way valve 41 is installed on the water pool output pipeline 34 , and a second one-way valve 42 is installed on the chamber conducting pipeline 35 .

[0079] The seawater pressure stabilizing device of the present application uses the seawater with a pressure greater than the conduction pressure value of the first overflow valve 21 to push the raw water in the first pressure transmission device 301 to the reverse osmosis device 100 for desalination through the cooperation of the first pressure transmission device 301 and the first overflow valve 21; and uses the seawater with a pressure greater than the conduction pressure value of the second overflow valve 22 to push the raw water in the second pressure transmission device 302 to the first pressure transmission device 301 to realize raw water replenishment through the cooperation of the second pressure transmission device 302 and the second overflow valve 22, so as to continuously desalinate the raw water. The seawater with a relatively large pressure is filtered through the cooperation of the filtering device 400 and the third overflow valve 23 to realize sufficient filtration of the seawater; and the pressure of the raw water output from the first pressure transmission device 301 is further monitored through the pressure regulating device 500 to ensure that the pressure of the seawater flowing into the reverse osmosis device 100 is not greater than the preset pressure value, so as to avoid damaging the membrane material in the reverse osmosis device 100 and extend the service life. The seawater pressure stabilizing device of the present application combines raw water treatment with pressure stabilizing treatment and does not require a power pump, thereby effectively reducing installation and maintenance costs and energy consumption costs.

[0080] The above is the first embodiment of a seawater pressure stabilizing device provided in the embodiment of the present application. The following is the second embodiment of a seawater pressure stabilizing device provided in the embodiment of the present application. For details, please refer to Figures 1 to 3 .

[0081] Based on the solution of the above embodiment 1:

[0082] Furthermore, if Figure 2 As shown, the third input end of the raw water tank 201 is connected to the raw water output end of the reverse osmosis device 100 through the third water tank input pipeline 33; the concentrated raw water produced after passing through the reverse osmosis device 100 returns to the raw water tank 201, and a third one-way valve 43 is installed on the third water tank input pipeline 33.

[0083] Furthermore, if Figure 1 as well as Figure 2 As shown, the pressure regulating device 500 includes a fourth overflow valve 24 and an on-off mechanism.

[0084] The fourth overflow valve 24 is installed on the second water tank input pipeline 32 and divides the second water tank input pipeline 32 into a water tank input pipeline front section and a water tank input pipeline rear section. The preset pressure value is also the conduction pressure value of the fourth overflow valve 24 .

[0085] The on-off mechanism is installed on the permeate input pipeline 36 and connected to the rear section of the pool input pipeline; when the fourth overflow valve 24 is on, the on-off mechanism is in a disconnected state of disconnecting the permeate input pipeline 36 due to the action of the raw water flowing through the fourth overflow valve 24; when the fourth overflow valve 24 is off, the on-off mechanism is in a connected state of connecting the permeate input pipeline 36 due to the action of the raw water flowing through the permeate input pipeline 36. The pressure regulating device 500 is designed to use the water in the pipeline connected to it as a driving force to realize the switching of its own on-off state, without the need for external electronic components such as a driving source, saving costs, and avoiding the problem of control failure caused by the corrosion of electronic components such as driving sources by environmental factors such as seawater, with better system stability and a more compact and simple overall structure.

[0086] Furthermore, if Figure 3 As shown, the on-off mechanism includes a mechanism body 501 , an upper on-off piston 52 , a lower on-off piston 53 and an on-off piston rod 54 .

[0087] An upper on-off chamber and a lower on-off chamber located below the upper on-off chamber are provided in the mechanism body 501; the upper on-off piston 52 is slidably installed in the upper on-off chamber, and divides the upper on-off chamber into a first upper on-off chamber and a second upper on-off chamber; the lower on-off piston 53 is slidably installed in the lower on-off chamber, and divides the lower on-off chamber into a first lower on-off chamber and a second lower on-off chamber; one end of the on-off piston rod 54 extends into the second upper on-off chamber and is connected to the upper on-off piston 52, and the other end extends into the second lower on-off chamber and is connected to the lower on-off piston 53.

[0088] The mechanism body 501 is provided with a first chamber water inlet 551 connected to the first upper on-off chamber; the mechanism body 501 is also provided with a second chamber water inlet 552 connected to the first lower on-off chamber and a chamber water outlet 553; the lower on-off piston 53 can block the chamber water outlet 553.

[0089] The first chamber water inlet 551 of the on-off mechanism is connected to the rear section of the water pool input pipeline; it can be understood that the raw water in the rear section of the water pool input pipeline can flow into the first upper on-off chamber through the first chamber water inlet 551, and then drive the upper on-off piston 52 to move downward, and then drive the lower on-off piston 53 to move downward through the on-off piston rod 54, so that the lower on-off piston 53 forms a cover on the chamber water outlet 553, thereby disconnecting the infiltration input pipeline 36.

[0090] The second chamber water inlet 552 and the chamber water outlet 553 of the on-off mechanism are connected in series in the permeate input pipeline 36. It can be understood that the permeate input pipeline 36 is also designed in two sections, one section is connected to the second chamber water inlet 552, and the other section is connected to the chamber water outlet 553. The raw water enters the first lower on-off chamber through the second chamber water inlet 552. When the permeate input pipeline 36 continues to flow raw water, it will continue to enter the first lower on-off chamber and then push up the lower on-off piston 53, so that the lower on-off piston 53 opens the chamber water outlet 553, thereby ensuring that the raw water can smoothly flow out from the second primary pipeline.

[0091] Furthermore, if Figure 3 As shown, the second chamber water inlet 552 and the chamber water outlet 553 can be arranged on the inner side of the lower on-off chamber and are arranged opposite to each other. Taking this as an example, in order to enable the seawater input from the second chamber water inlet 552 to smoothly lift the lower on-off piston 53, the side of the lower on-off piston 53 away from the upper on-off piston 52 is an inclined surface or the lower on-off piston 53 is arranged at an angle, that is, the lower on-off piston 53 is designed as a wedge block.

[0092] The distance between the inclined surface or the lower on-off piston 53 and the bottom surface of the lower on-off chamber gradually decreases along the direction from the second chamber water inlet 552 to the chamber water outlet 553. It can be understood that the portion of the inclined surface or the lower on-off piston 53 located on the second chamber water inlet 552 side is set upward, while the portion of the inclined surface or the lower on-off piston 53 located on the chamber water outlet 553 side is set downward; after such an inclined setting, it is ensured that when the lower on-off piston 53 blocks the chamber water outlet 553, the formed first lower on-off chamber still has enough space to communicate with the second chamber water inlet 552, that is, it will not block the second chamber water inlet 552, and the inclined setting is also convenient for seawater to push the lower on-off piston 53 after entering.

[0093] Furthermore, if Figure 3 As shown, in order to enable the seawater to better lift the lower on-off piston 53 after flowing into the first lower on-off chamber, the on-off mechanism further includes an on-off elastic member 56 .

[0094] The on-off elastic member 56 is arranged in the second lower on-off chamber, and one end is connected to the top surface of the lower on-off chamber, and the other end is connected to the lower on-off piston 53. When seawater is introduced into the first upper on-off chamber, it will drive the upper on-off piston 52 to move downward, and then drive the lower on-off piston 53 to move downward through the on-off piston rod 54, thereby stretching the on-off elastic member 56. When seawater is introduced into the first lower on-off chamber, the seawater cooperates with the restoring elastic force of the on-off elastic member 56 to better lift the lower on-off piston 53. It should be noted that in order to avoid the weakening of the seawater pressure in the rear section of the pool input pipeline due to the stretching of the lower on-off elastic member 56, it is designed that the gravity of the seawater introduced into the first upper on-off chamber is the same as the elastic force generated by the stretching of the on-off elastic member 56.

[0095] Furthermore, the on-off elastic member 56 may be a spring, which is sleeved on the on-off piston rod 54 .

[0096] Furthermore, with regard to the structural design of the mechanism body 51, it includes an upper piston cylinder 512 and a lower piston cylinder 511; the upper piston cylinder 512 is fixed above the lower piston cylinder 511 through a plurality of connecting columns 513; an upper on-off cavity is formed in the upper piston cylinder 512; and a lower on-off cavity is formed in the lower piston cylinder 511.

[0097] Furthermore, a fourth one-way valve 44 is installed on the first water tank input pipeline 31, a fifth one-way valve 45 is installed on the second seawater pipeline 12, and a sixth one-way valve 46 is installed on the third seawater pipeline 13 to ensure stable one-way transportation of seawater in the pipelines.

[0098] Furthermore, if Figure 2 As shown, the filter device 400 includes a filter box 401 and a filter assembly installed in the filter box 401; the filter assembly includes a quartz sand filter layer 411, an activated carbon filter layer 412, a chemical dosing layer 413 and an ultrafiltration layer 414 arranged in sequence to achieve pretreatment of seawater to form raw water; technicians in this field can make appropriate changes in design based on this without limitation.

[0099] The working principle of the seawater pressure stabilizing device designed in this application is as follows:

[0100] When the seawater pressure is greater than the conduction pressure value of the first overflow valve 21 but less than / equal to the conduction pressure value of the second overflow valve 22, the seawater enters the first seawater chamber and pushes the first pressure transmission piston 311 to move, so as to squeeze out the raw water in the first raw water chamber; when the pressure of the squeezed raw water is less than / equal to the conduction pressure value of the fourth overflow valve 24, it smoothly enters the reverse osmosis device 100 through the osmosis input pipeline 36 for desalination; and when the pressure of the squeezed raw water is greater than the conduction pressure value of the fourth overflow valve 24, it passes through the second water tank input pipeline 32 through the raw water tank 201, and then squeezes the raw water in the raw water tank 201 so that the raw water in the raw water tank 201 is desalinated. The raw water in 01 enters the second raw water chamber through the pool output pipe 34, and then enters the first raw water chamber through the chamber conducting pipe 35. At this time, the pressure of the first raw water chamber further increases on the first pressure transmission slider, thereby increasing the pressure of the first seawater chamber. When the seawater pressure in the first seawater chamber is greater than the conducting pressure value of the second overflow valve 22, the seawater is input into the second seawater chamber through the second seawater pipe 12; as the system continues to run, if the seawater pressure in the second seawater chamber is greater than the conducting pressure value of the third overflow valve 23, it is discharged into the filter device 400 through the third seawater pipe 13 for pretreatment.

[0101] The above is a detailed introduction to a seawater pressure stabilizing device provided in the present application. For a person skilled in the art, according to the idea of ​​the embodiments of the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A seawater pressure stabilizing device, characterized in that: It comprises a raw water pool (201), a filtering device (400), a reverse osmosis device (100), a first pressure transmission device (301), a second pressure transmission device (302), and a pressure regulating device (500); The first pressure transmission device (301) is provided with a first chamber; A first pressure-transmitting piston (311) is provided in the first chamber, for dividing the first chamber into a first seawater chamber and a first raw water chamber; The input end of the first seawater chamber is connected to a seawater supply source via a first seawater pipeline (11); A first overflow valve (21) is installed on the first seawater pipeline (11); A second chamber is provided in the second pressure transmission device (302); A second pressure-transmitting piston (321) is provided in the second chamber, for dividing the second chamber into a second seawater chamber and a second raw water chamber; The output end of the first seawater chamber is connected to the input end of the second seawater chamber via a second seawater pipeline (12); A second overflow valve (22) is installed on the second seawater pipeline (12); The conduction pressure value of the second relief valve (22) is greater than the conduction pressure value of the first relief valve (21); The output end of the second seawater chamber is connected to the input end of the filtering device (400) via a third seawater pipeline (13); A third overflow valve (23) is installed on the third seawater pipeline (13); The conduction pressure value of the third relief valve (23) is greater than the conduction pressure value of the second relief valve (22); The first input end of the raw water pool (201) is connected to the output end of the filtering device (400) via a first water pool input pipeline (31); The second input end of the raw water pool (201) is connected to the output end of the first raw water chamber via a second water pool input pipeline (32); The output end of the raw water pool (201) is connected to the input end of the second raw water chamber via a pool output pipeline (34); The output end of the second raw water chamber is connected to the input end of the first raw water chamber through a chamber conducting pipe (35); The output end of the first raw water chamber is also connected to the raw water input end of the reverse osmosis device (100) via an osmotic input pipeline (36); The pressure regulating device (500) is installed on the second water tank input pipeline (32) and the permeate input pipeline (36); When the pressure of the raw water outputted from the first raw water chamber is greater than a preset pressure value, the pressure regulating device (500) conducts the second water tank input pipeline (32); When the pressure of the raw water outputted from the first raw water chamber is not greater than a preset pressure value, the pressure regulating device (500) opens the permeate input pipeline (36); A first one-way valve (41) is installed on the water pool output pipeline (34). A second one-way valve (42) is installed on the chamber communication pipeline (35).

2. A seawater pressure stabilizing device according to claim 1, characterized in that: The third input end of the raw water pool (201) is connected to the raw water output end of the reverse osmosis device (100) via a third water pool input pipeline (33); A third one-way valve (43) is installed on the third water tank input pipeline (33).

3. A seawater pressure stabilizing device according to claim 1, characterized in that: The pressure regulating device (500) comprises a fourth overflow valve (24) and an on-off mechanism; The fourth overflow valve (24) is installed on the second water pool input pipeline (32), and divides the second water pool input pipeline (32) into a water pool input pipeline front section and a water pool input pipeline rear section; The on-off mechanism is installed on the permeate input pipeline (36) and connected to the rear section of the water pool input pipeline; When the fourth overflow valve (24) is turned on, the on-off mechanism is in a disconnected state for disconnecting the permeate input pipeline (36) under the action of raw water flowing through the fourth overflow valve (24); When the fourth overflow valve (24) is disconnected, the on-off mechanism is in a conducting state for conducting the permeate input pipeline (36) under the action of the raw water flowing through the permeate input pipeline (36).

4. A seawater pressure stabilizing device according to claim 3, characterized in that: The on-off mechanism comprises a mechanism body (501), an upper on-off piston (52), a lower on-off piston (53) and an on-off piston rod (54); An upper on-off chamber and a lower on-off chamber located below the upper on-off chamber are provided in the mechanism body (501); The upper on-off piston (52) is slidably mounted in the upper on-off chamber, and divides the upper on-off chamber into a first upper on-off chamber and a second upper on-off chamber; The lower on-off piston (53) is slidably mounted in the lower on-off chamber, and divides the lower on-off chamber into a first lower on-off chamber and a second lower on-off chamber; One end of the on-off piston rod (54) extends into the second upper on-off chamber to be connected to the upper on-off piston (52), and the other end extends into the second lower on-off chamber to be connected to the lower on-off piston (53); The mechanism body (501) is provided with a first chamber water inlet (551) communicating with the first upper on-off chamber; The mechanism body (501) is also provided with a second chamber water inlet (552) and a chamber water outlet (553) communicating with the first lower on-off chamber; The lower on-off piston (53) can block the water outlet (553) of the chamber; The first chamber water inlet (551) of the on-off mechanism is in communication with the rear section of the water pool input pipeline; The second chamber water inlet (552) and the chamber water outlet (553) of the on-off mechanism are connected in series in the permeate input pipeline (36).

5. A seawater pressure stabilizing device according to claim 4, characterized in that: The second chamber water inlet (552) and the chamber water outlet (553) are arranged on the inner side surface of the lower on-off chamber and are arranged opposite to each other; A surface of the lower on-off piston (53) away from the upper on-off piston (52) is an inclined surface or the lower on-off piston (53) is arranged in an inclined manner.

6. A seawater pressure stabilizing device according to claim 1, characterized in that: A fourth one-way valve (44) is installed on the first water tank input pipeline (31).

7. The seawater pressure stabilizing device according to claim 1, characterized in that: A fifth one-way valve (45) is also installed on the second seawater pipeline (12).

8. The seawater pressure stabilizing device according to claim 1, characterized in that: A sixth one-way valve (46) is also installed on the third seawater pipeline (13).

9. The seawater pressure stabilizing device according to claim 1, characterized in that: The filtering device (400) comprises a filtering box (401) and a filtering component installed in the filtering box (401).

10. A seawater pressure stabilizing device according to claim 9, characterized in that: The filter assembly comprises a quartz sand filter layer (411), an activated carbon filter layer (412), a chemical dosing layer (413), and an ultrafiltration layer (414) which are arranged in sequence.

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