Water treatment device and forward osmosis water treatment coupled electrolytic hydrogen production system

Abstract

The invention discloses a water treatment device and forward osmosis water treatment coupled electrolytic hydrogen production system, and relates to the technical field of water treatment.The water treatment device comprises a supporting assembly, at least two water treatment assemblies and two end plates, and an assembling gap is formed in the supporting assembly; the at least two water treatment assemblies are detachably arranged in the assembly gap, and the at least two water treatment assemblies are stacked in the extension direction of the assembly gap and are used for dividing the assembly gap into a plurality of water treatment spaces; the two end plates are clamped at the two ends of the supporting assembly in the extending direction of the supporting assembly, and the two end plates can be close to or away from each other. According to the invention, the assembly gap is formed in the support assembly, the assembly gap is filled with the detachable laminated water treatment assembly, and the adjustable mechanism of the end plate is combined, so that the problems of low unit volume water treatment flux, large equipment volume and system shutdown caused by permeable membrane damage or leakage of the existing forward osmosis water treatment system are effectively solved; the water treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a water treatment device and a forward osmosis water treatment coupled electrolysis hydrogen production system. Background Art

[0002] With the development of water treatment technology, forward osmosis has been gradually applied to many fields such as seawater desalination, wastewater treatment, resource recovery and hydrogen production. The forward osmosis water treatment system uses the osmotic pressure difference of the solution on both sides of the osmotic membrane to drive water molecules through the membrane, thereby achieving water purification and concentration.

[0003] At present, in the chlor-alkali chemical production process, high-concentration NaCl solution is used as the extraction liquid and industrial wastewater is used as the liquid to be treated. Industrial wastewater can be converted into usable water resources. At the same time, the subsequent treatment costs can be reduced after the industrial wastewater is concentrated.

[0004] In the process of hydrogen production by water electrolysis, high-concentration NaOH or KOH solution can be used as the absorption liquid, and seawater or industrial wastewater can be used as the liquid to be treated. This can expand the application scenarios of hydrogen production by water electrolysis and enhance the added value of the hydrogen production process by water electrolysis.

[0005] However, the existing forward osmosis water treatment system has poor treatment capacity per unit volume of water, that is, the water treatment flux is not high, resulting in a large equipment size. Once the osmotic membrane is damaged or leaks, the entire forward osmosis water treatment system will stop working, resulting in low water treatment efficiency. Summary of the invention

[0006] The main purpose of the present invention is to propose a water treatment device and a forward osmosis water treatment coupled electrolysis hydrogen production system, aiming to improve the treatment capacity per unit volume of water and enhance fault tolerance to improve the efficiency of water treatment.

[0007] To achieve the above object, the water treatment device proposed by the present invention comprises:

[0008] A support assembly, wherein an assembly gap is formed in the support assembly;

[0009] At least two water treatment components, at least two of which are detachably disposed in the assembly gap, and at least two of which are stacked along the extension direction of the assembly gap and are used to divide the assembly gap into a plurality of water treatment spaces;

[0010] Two end plates, the two end plates are clamped at the two ends of the support assembly along the extension direction thereof, and the two end plates can move closer to or farther from each other, correspondingly pressing against or loosening the support assembly to reduce or expand the size of the assembly gap, and clamp or release the water treatment assembly in the assembly gap;

[0011] Wherein, two adjacent water treatment spaces are filled with the drawn liquid and the liquid to be treated respectively, and the two adjacent water treatment spaces are connected through a permeable membrane.

[0012] In one embodiment, the water treatment component includes a mounting frame and a structural net, the mounting frame is surrounded to form a through opening, and the mounting frame is respectively formed with mounting protrusions and mounting grooves on two opposite sides extending along the assembly gap, the mounting protrusions and the mounting grooves both extend along the circumference of the mounting frame, and the mounting protrusions and the mounting grooves are both recessed on one side facing the through opening to form a mounting groove, and the structural net is arranged in the mounting groove; in two adjacent water treatment components, the mounting protrusion of one water treatment component is limitedly fitted in the mounting groove of the other water treatment component, the permeable membrane is arranged between the mounting protrusion and the mounting groove, and a sealing gasket is also arranged between the mounting protrusion and the mounting groove.

[0013] In one embodiment, the support assembly includes two relatively arranged support frames, the two support frames are spaced apart to form the assembly gap, and opposite sides of the two support frames are recessed to form a liquid storage tank, and at least two of the water treatment assemblies located at both ends are respectively connected to the liquid storage tanks of the two support frames.

[0014] In one embodiment, the two support frames are a first support frame and a second support frame, and the first support frame is formed with a connecting protrusion on the side facing the water treatment component, and the connecting protrusion is adapted to and limitedly cooperates with the installation groove; the second support frame is formed with a connecting groove on the side facing the water treatment component, and the connecting groove is adapted to and limitedly cooperates with the installation protrusion; the connecting protrusion and the connecting groove are both recessed on the side facing the liquid storage tank to form the installation groove.

[0015] In one embodiment, the end plate is provided with a plurality of connection holes, and the plurality of connection holes are evenly distributed along the circumference of the end plate. A fixing component is detachably connected to each of the connection holes, and the two end plates are connected via the fixing component, and the fixing component is used to make the two end plates approach or move away from each other.

[0016] In one embodiment, the fixing assembly includes a bolt and two nuts, the bolt extends along the extension direction of the assembly gap, the bolt is passed through the connecting holes of the two end plates, both ends of the bolt along the extension direction respectively extend out of the side of the two end plates away from the assembly gap, and the two nuts are respectively sleeved on the two ends of the bolt extending out of the two end plates.

[0017] The present invention also proposes a forward osmosis water treatment coupled electrolysis hydrogen production system, which uses the water treatment device as mentioned above; the support component and at least two of the water treatment components are provided with a liquid inlet, an overflow port, an air pressure balance port and an emptying port, and the liquid inlet, the overflow port, the air pressure balance port and the emptying port are evenly distributed along the circumference of the assembly gap; the support component and at least two of the water treatment components are installed with a liquid level detector and a concentration detector connected to the water treatment space.

[0018] In one embodiment, the liquid inlets of the support assembly and at least two of the water treatment assemblies are alternately connected to a first buffer tank and a second buffer tank, and a control valve is installed at the connection between the liquid inlet and the first buffer tank or the second buffer tank, and the control valve is used to allow the drawn liquid or the liquid to be treated in the first buffer tank or the second buffer tank to enter the water treatment space according to the monitoring result of the liquid level detector; the emptying port is connected to an emptying valve, and the emptying valve is used to empty the liquid to be treated or the drawn liquid in the water treatment space according to the monitoring result of the concentration detector.

[0019] In one embodiment, the support assembly and the overflow ports of at least two of the water treatment assemblies are connected to an adjustable overflow pipe, and the adjustable overflow pipe is used to adjust the liquid level in the water treatment space.

[0020] In one embodiment, the overflow ports of the support assembly and at least two of the water treatment assemblies are alternately connected to the concentrate storage tank and the diluent storage tank through the adjustable overflow pipe.

[0021] The technical solution of the present invention is to support the assembly gap formed in the assembly assembly, cooperate with at least two water treatment components detachably arranged in the assembly gap, and use the method of stacking along the extension direction of the assembly gap, so that the water treatment component can separate the assembly gap into multiple water treatment spaces. Not only does it save the occupied space of the device, but also due to the close arrangement of the water treatment components, the water treatment flux per unit volume is increased. In addition, the two end plates can be close to or away from each other, so as to reduce or expand the size of the assembly gap as needed, and clamp or release the water treatment component in the assembly gap accordingly. It is not only suitable for the demand scenario of efficient water treatment, but also convenient for quickly releasing the water treatment component when the permeable membrane needs to be maintained or replaced. Improve the operational flexibility and maintenance convenience of the device. Finally, the two adjacent water treatment spaces are filled with the drawn liquid and the liquid to be treated, respectively, and are connected through the permeable membrane, so that the drawn liquid and the liquid to be treated can be exchanged in an efficient and controllable environment, further improving the treatment efficiency and treatment quality. It can process high-concentration chemical solutions, such as high-concentration NaCl solutions in the chlor-alkali chemical production process, and can also use industrial wastewater to convert it into usable water resources, while reducing the subsequent treatment costs after the industrial wastewater is concentrated. In addition, the device can also be used in the water electrolysis hydrogen production process, using high-concentration NaOH or KOH solutions as the draw liquid, and seawater or industrial wastewater as the liquid to be treated, expanding the application scenarios of water electrolysis hydrogen production and increasing the added value of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an embodiment of a water treatment device provided by the present invention;

[0024] Figure 2 A schematic structural diagram of another embodiment of a water treatment device provided by the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 A structural schematic diagram of an embodiment of a support frame provided by the present invention;

[0027] Figure 5 A structural schematic diagram of another embodiment of the support frame provided by the present invention;

[0028] Figure 6 A schematic structural diagram of an embodiment of a mounting frame provided by the present invention;

[0029] Figure 7 A schematic structural diagram of an embodiment of an end plate provided by the present invention;

[0030] Figure 8 This is a structural schematic diagram of an embodiment of the forward osmosis water treatment coupled electrolysis hydrogen production system provided by the present invention.

[0031] Description of Figure Numbers:

[0032] 100, support assembly; 101, assembly gap; 110, support frame; 102, liquid storage tank; 111, connection protrusion; 112, connection groove; 200, water treatment assembly; 201, water treatment space; 210, installation frame; 220, structural net; 202, through-hole; 211, installation protrusion; 212, installation groove; 300, end plate; 301, connection hole; 400, sealing gasket; 500, installation groove; 600, fixed Fixed assembly; 610, bolts; 620, nuts; 701, liquid inlet; 702, overflow port; 703, air pressure balance port; 704, drain port; 810, liquid level detector; 820, concentration detector; 830, first buffer tank; 840, second buffer tank; 850, control valve; 860, adjustable overflow pipe; 870, concentrate storage tank; 880, diluent storage tank, 890, electrolysis device, 900, osmotic membrane.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] At present, in the chlor-alkali chemical production process, high-concentration NaCl solution is used as the extraction liquid and industrial wastewater is used as the liquid to be treated. Industrial wastewater can be converted into usable water resources. At the same time, the subsequent treatment costs can be reduced after the industrial wastewater is concentrated.

[0038] In the process of hydrogen production by water electrolysis, high-concentration NaOH or KOH solution can be used as the absorption liquid, and seawater or industrial wastewater can be used as the liquid to be treated. This can expand the application scenarios of hydrogen production by water electrolysis and enhance the added value of the hydrogen production process by water electrolysis.

[0039] However, the existing forward osmosis water treatment system has poor treatment capacity per unit volume of water, that is, the water treatment flux is not high, resulting in a large equipment size. Once the osmotic membrane is damaged or leaks, the entire forward osmosis water treatment system will stop working, resulting in low water treatment efficiency.

[0040] In order to solve this technical problem, the present invention proposes a water treatment device and a forward osmosis water treatment coupled electrolysis hydrogen production system.

[0041] See also Figures 1 to 7In one embodiment of the present invention, the water treatment device includes a support component 100, at least two water treatment components 200 and two end plates 300, and an assembly gap 101 is formed in the support component 100; at least two water treatment components 200 are detachably arranged in the assembly gap 101, and at least two water treatment components 200 are stacked along the extension direction of the assembly gap 101, and are used to divide the assembly gap 101 into a plurality of water treatment spaces 201; the two end plates 300 are clamped at both ends of the support component 100 along its extension direction, and the two end plates 300 can approach or move away from each other, correspondingly press against the support component 100 or loosen the support component 100 to reduce or expand the size of the assembly gap 101, and clamp or release the water treatment component 200 in the assembly gap 101; wherein, the two adjacent water treatment spaces 201 are respectively filled with the drawn liquid and the liquid to be treated, and the two adjacent water treatment spaces 201 are connected through the permeable membrane 900.

[0042] Specifically, an assembly gap 101 is formed in the support assembly 100, providing space for the arrangement of the water treatment assembly 200. At least two water treatment assemblies 200 are detachably arranged in the assembly gap 101, and are stacked along the extension direction of the assembly gap 101. Through this design, the water treatment assembly 200 can separate the assembly gap 101 into a plurality of water treatment spaces 201. The stacking arrangement of the water treatment assembly 200 not only saves the occupied space of the device, but also increases the water treatment flux per unit volume due to its close arrangement. The improvement of this flux is achieved by optimizing the water flow path and fluid dynamics.

[0043] The two end plates 300 are clamped at both ends of the support assembly 100 along its extension direction, and can be close to or away from each other. When the two end plates 300 are close to each other, they are pressed against the support assembly 100 accordingly, thereby reducing the size of the assembly gap 101 and clamping the water treatment assembly 200 in the assembly gap 101. This state is suitable for situations where efficient water treatment is required. On the contrary, when the two end plates 300 are away from each other, they loosen the support assembly 100, expand the size of the assembly gap 101, and allow the water treatment assembly 200 to be released from the assembly gap 101. This state facilitates maintenance of the water treatment assembly 200 or replacement of the permeable membrane 900.

[0044] In addition, the two adjacent water treatment spaces 201 are filled with the drawn liquid and the liquid to be treated, respectively, and are connected through the permeable membrane 900. The drawn liquid and the liquid to be treated can be exchanged in an efficient and controllable environment, further improving the treatment efficiency and treatment quality. The water treatment device can not only treat high-concentration chemical solutions such as high-concentration NaCl solutions in the chlor-alkali chemical production process, but also use industrial wastewater to convert it into usable water resources, while reducing the subsequent treatment costs after the industrial wastewater is concentrated. The device can also be applied to the water electrolysis hydrogen production process, using high-concentration NaOH or KOH solution as the drawn liquid, and seawater or industrial wastewater as the liquid to be treated, expanding the application scenarios of water electrolysis hydrogen production and improving the added value of the production process.

[0045] In the technical solution provided by the present invention, the assembly gap 101 formed in the support assembly 100 is matched with at least two water treatment components 200 detachably arranged in the assembly gap 101, and the water treatment component 200 is arranged in a stacked manner along the extension direction of the assembly gap 101, so that the assembly gap 101 can be divided into a plurality of water treatment spaces 201 by the water treatment component 200. Not only does it save the occupied space of the device, but also the water treatment flux per unit volume is increased due to the close arrangement of the water treatment components 200. In addition, the two end plates 300 can be close to or away from each other, thereby reducing or expanding the size of the assembly gap 101 as needed, and the water treatment component 200 is clamped or released in the assembly gap 101 accordingly. It is not only suitable for scenarios requiring efficient water treatment, but also convenient for quickly releasing the water treatment component 200 when the permeable membrane 900 needs to be maintained or replaced. The operational flexibility and maintenance convenience of the device are improved. Finally, the two adjacent water treatment spaces 201 are filled with the drawn liquid and the liquid to be treated, respectively, and are connected through the permeable membrane 900, so that the drawn liquid and the liquid to be treated can be exchanged in an efficient and controllable environment, further improving the treatment efficiency and treatment quality. It can treat high-concentration chemical solutions, such as high-concentration NaCl solutions in the chlor-alkali chemical production process, and can also use industrial wastewater to convert it into usable water resources, while reducing the subsequent treatment costs after the industrial wastewater is concentrated. In addition, the device can also be applied to the water electrolysis hydrogen production process, using high-concentration NaOH or KOH solutions as the drawn liquid, and seawater or industrial wastewater as the liquid to be treated, which expands the application scenarios of water electrolysis hydrogen production and improves the added value in the production process.

[0046] Please continue reading Figure 2 , Figure 3 and Figure 6In an embodiment of the present invention, a water treatment component 200 includes a mounting frame 210 and a structural net 220. The mounting frame 210 is arranged to form a through opening 202. The mounting frame 210 is provided with mounting protrusions 211 and mounting grooves 212 on opposite sides extending along the assembly gap 101, respectively. The mounting protrusions 211 and the mounting grooves 212 both extend along the circumference of the mounting frame 210. The mounting protrusions 211 and the mounting grooves 212 are both recessed on one side of the through opening 202 to form a mounting groove 500. The structural net 220 is arranged in the mounting groove 500. In two adjacent water treatment components 200, the mounting protrusion 211 of one water treatment component 200 is limitedly fitted in the mounting groove 212 of the other water treatment component 200. The permeable membrane 900 is arranged between the mounting protrusion 211 and the mounting groove 212, and a sealing gasket 400 is also arranged between the mounting protrusion 211 and the mounting groove 212.

[0047] Specifically, the mounting frame 210 is formed with mounting protrusions 211 and mounting grooves 212 on opposite sides extending along the assembly gap 101, and both the mounting protrusions 211 and the mounting grooves 212 extend along the circumference of the mounting frame 210. This allows two adjacent water treatment components 200 to achieve a stable stacking arrangement through the limited cooperation of the mounting protrusions 211 and the mounting grooves 212. At the same time, the mounting protrusions 211 and the mounting grooves 212 are both recessed on one side facing the through opening 202 to form mounting grooves 500 for accommodating the structural net 220, ensuring that the structural net 220 can be reliably fixed in the water treatment component 200.

[0048] At the connection of two adjacent water treatment components 200, the mounting protrusion 211 of one water treatment component 200 is limitedly matched in the mounting groove 212 of the other water treatment component 200, forming a tightly fitting connection structure. The permeable membrane 900 is arranged between the mounting protrusion 211 and the mounting groove 212, and is installed and fixed using the space between the two. At the same time, a sealing gasket 400 is also arranged between the mounting protrusion 211 and the mounting groove 212, which further enhances the sealing performance of the connection and effectively prevents the occurrence of liquid leakage problems.

[0049] This embodiment realizes the reliable connection of adjacent components and the effective installation of the permeable membrane 900, and at the same time, combined with the use of the sealing gasket 400, the sealing performance of the device is guaranteed. In practical applications, multiple water treatment components 200 form a compact stacked structure through the alternating cooperation of the mounting protrusions 211 and the mounting grooves 212, which significantly improves the space utilization rate in the assembly gap 101. The setting of the structural net 220 provides the necessary support and diversion for water treatment, optimizes the water flow path, and promotes the full contact and exchange between the drawn liquid and the liquid to be treated.

[0050] Please continue reading Figure 1 and Figure 2In an embodiment of the present invention, the support assembly 100 includes two relatively arranged support frames 110, the two support frames 110 are spaced apart to form an assembly gap 101, and the opposite sides of the two support frames 110 are recessed to form a liquid storage tank 102, and at least two water treatment assemblies 200 located at both ends are respectively connected to the liquid storage tanks 102 of the two support frames 110.

[0051] Specifically, the support assembly 100 includes two support frames 110 arranged opposite to each other, and the two support frames 110 are spaced to form an assembly gap 101, which provides space for the installation of the water treatment assembly 200. The support frame 110 is the main bearing structure of the device, and its structural strength and stability directly affect the performance of the entire device. By adopting two support frames 110 arranged opposite to each other, not only the overall rigidity of the device is enhanced, but also conditions are created for subsequent modular assembly.

[0052] The opposite sides of the two support frames 110 are both recessed to form a liquid storage tank 102, so that the two water treatment components 200 located at both ends can be connected to the liquid storage tanks 102 of the two support frames 110 respectively. The arrangement of the liquid storage tank 102 fully utilizes the space of the support frame 110 and increases the liquid storage capacity of the device.

[0053] Please continue reading Figure 4 and Figure 5 In an embodiment of the present invention, the two support frames 110 are a first support frame 110 and a second support frame 110. A connecting protrusion 111 is formed on the side of the first support frame 110 facing the water treatment component 200, and the connecting protrusion 111 is adapted to and limitedly matched with the mounting groove 212; a connecting groove 112 is formed on the side of the second support frame 110 facing the water treatment component 200, and the connecting groove 112 is adapted to and limitedly matched with the mounting protrusion 211; the connecting protrusion 111 and the connecting groove 112 are both recessed to form a mounting groove 500 on the side facing the liquid storage tank 102.

[0054] Specifically, a connection protrusion 111 is formed on one side of the first support frame 110 facing the water treatment component 200, and the connection protrusion 111 is adapted and limitedly matched with the installation groove 212 on the water treatment component 200. Through the matching of the connection protrusion 111 and the installation groove 212, a reliable connection between the first support frame 110 and the water treatment component 200 is ensured, and the problem of loosening or detachment during use is prevented.

[0055] Corresponding to the first support frame 110, a connection groove 112 is formed on the side of the second support frame 110 facing the water treatment component 200, and the connection groove 112 is adapted and limitedly matched with the mounting protrusion 211 on the water treatment component 200. Similarly, through the matching of the connection groove 112 and the mounting protrusion 211, a stable connection between the second support frame 110 and the water treatment component 200 is achieved. This alternating matching connection method not only simplifies the assembly operation, but also improves the reliability and stability of the connection.

[0056] More specifically, the connection protrusion 111 and the connection groove 112 are both recessed on one side facing the liquid storage tank 102 to form a mounting groove 500 for accommodating and fixing the structural net 220 in the water treatment assembly 200. The setting of the mounting groove 500 fully utilizes the space between the connection protrusion 111 and the connection groove 112, and while realizing the connection function, it also provides a mounting position for the structural net 220. The additional mounting structure is reduced, making the entire device more compact and efficient.

[0057] During actual assembly, the mounting protrusion 211 and the mounting groove 212 of the water treatment assembly 200 cooperate with the connecting protrusion 111 of the first support frame 110 and the connecting groove 112 of the second support frame 110, respectively, to form a stable connection structure. At the same time, the structural net 220 is installed in the mounting groove 500 on the connecting protrusion 111 and the connecting groove 112, and is directly connected to the liquid storage tank 102. This not only simplifies the assembly steps, but also ensures that the structural net 220 can play the best supporting and guiding role, thereby improving the water treatment efficiency.

[0058] Please continue reading Figure 7 In an embodiment of the present invention, the end plate 300 is provided with a plurality of connection holes 301, and the plurality of connection holes 301 are evenly distributed along the circumference of the end plate 300, and a fixing component 600 is detachably connected to each connection hole 301, and the two end plates 300 are connected by the fixing component 600, and the fixing component 600 is used to make the two end plates 300 approach or move away from each other.

[0059] Specifically, the end plate 300 is provided with a plurality of connection holes 301, which are evenly distributed along the circumference of the end plate 300. The arrangement of the connection holes 301 facilitates the installation of the fixing assembly 600, so that the fixing assembly 600 can be conveniently detachably connected to the end plate 300. By installing the fixing assembly 600 in the connection holes 301, an adjustable connection between the two end plates 300 is achieved, so that the distance between the end plates 300 can be flexibly adjusted according to actual needs.

[0060] Specifically, during the assembly process, the fixing assembly 600 is first installed in the connection hole 301 on one end plate 300, and then the other end plate 300 is connected to the other end of the fixing assembly 600, thereby achieving a preliminary connection between the two end plates 300. By adjusting the adjustment mechanism on the fixing assembly 600, such as a thread, a pin, etc., the distance between the two end plates 300 can be controlled to make them closer or farther from each other. This adjustable connection method is not only convenient for assembly and maintenance, but also provides flexibility for subsequent use.

[0061] In practical applications, by adjusting the fixing assembly 600, the distance between the two end plates 300 can be conveniently changed to adapt to different installation environments and working conditions. For example, when the spacing between the end plates 300 needs to be increased to accommodate more water treatment components 200, the two end plates 300 can be pulled apart by the fixing assembly 600; conversely, when the spacing between the end plates 300 needs to be reduced to achieve a compact arrangement, the two end plates 300 can be pulled closer by the fixing assembly 600. This flexible adjustment method greatly improves the applicability and practicality of the device.

[0062] More specifically, multiple connection holes 301 are evenly distributed along the circumference of the end plate 300. This arrangement not only facilitates the installation of the fixing assembly 600, but also helps to improve the stability of the connection of the end plate 300. By arranging the connection holes 301 at different positions around the end plate 300, multiple points of support can be formed between the end plates 300, avoiding the stress concentration problem at a single connection point and improving the reliability of the connection. At the same time, the evenly distributed connection holes 301 also make the force on the end plate 300 more balanced, reduce the risk of deformation of the end plate 300, and further enhance the stability of the device.

[0063] Please continue reading Figure 1 and Figure 2 In an embodiment of the present invention, the fixing assembly 600 includes a bolt 610 and two nuts 620. The bolt 610 extends along the extension direction of the assembly gap 101. The bolt 610 is passed through the connecting holes 301 of the two end plates 300. Both ends of the bolt 610 along the extension direction extend out of the two end plates 300 away from the assembly gap 101, and the two nuts 620 are respectively sleeved on both ends of the bolt 610 extending out of the two end plates 300.

[0064] Specifically, the fixing assembly 600 includes a bolt 610 and two nuts 620, wherein the bolt 610 extends along the extension direction of the assembly gap 101. The bolt 610 is sequentially inserted into the connection holes 301 of the two end plates 300, so that both ends of the bolt 610 extend out of the two end plates 300 away from the assembly gap 101. By respectively sleeved the nuts 620 on the two ends of the bolt 610, the tightness of the bolt 610 can be conveniently adjusted, thereby controlling the distance between the two end plates 300.

[0065] During the assembly process, firstly, the bolt 610 is passed through the connection hole 301 on one end plate 300, so that one end thereof protrudes from the side of the end plate 300 away from the assembly gap 101, and then a nut 620 is sleeved on the protruding end. Next, the other end of the bolt 610 is passed through the connection hole 301 on the other end plate 300, so that it protrudes from the side of the end plate 300 away from the assembly gap 101, and another nut 620 is sleeved on the protruding end. By adjusting the positions of the two nuts 620 on the bolt 610, the protruding length of the two ends of the bolt 610 can be controlled, and then the distance between the two end plates 300 can be adjusted. When the distance between the end plates 300 needs to be increased, the two nuts 620 only need to be moved outward along the bolt 610; conversely, when the distance between the end plates 300 needs to be reduced, the two nuts 620 are moved inward along the bolt 610.

[0066] This adjustable connection method realized by bolts 610 and nuts 620 is simple to operate and easy to adjust, and can meet the requirements for the spacing of the end plates 300 under different working conditions. At the same time, the connection between the bolts 610 and nuts 620 also has high reliability and stability, which can effectively prevent the end plates 300 from loosening or falling off during use. Compared with the prior art, the fixing assembly 600 of this embodiment has a simple structure, low cost, and flexible adjustment, which greatly improves the practicality and applicability of the device.

[0067] Please continue reading Figures 1 to 7 , and see Figure 8 The present invention also proposes a forward osmosis water treatment coupled electrolysis hydrogen production system, which uses the water treatment device as mentioned above; the support component 100 and at least two water treatment components 200 are provided with a liquid inlet 701, an overflow port 702, an air pressure balance port 703 and an emptying port 704, and the liquid inlet 701, the overflow port 702, the air pressure balance port 703 and the emptying port 704 are evenly distributed along the circumference of the assembly gap 101; the support component 100 and at least two water treatment components 200 are installed with a liquid level detector 810 and a concentration detector 820 connected to the water treatment space 201.

[0068] Specifically, the liquid inlet 701 on the support component 100 and at least two water treatment components 200 is responsible for evenly inputting the water to be treated into the water treatment space 201; the overflow port 702 is used to discharge excess liquid generated during the treatment process to prevent the liquid from accumulating inside the system, thereby avoiding possible equipment damage and reduced treatment efficiency; the air pressure balance port 703 is set up to adjust and stabilize the pressure in the water treatment space 201 to prevent the water treatment effect from being affected by excessive or insufficient pressure; the drain port 704 is used to quickly discharge the liquid in the system when the system needs maintenance or ends operation, so as to facilitate rapid shutdown and maintenance of the system.

[0069] In addition, in order to monitor the changes in water quality during the water treatment process in real time and ensure the safety and effectiveness of the treatment process, a liquid level detector 810 and a concentration detector 820 connected to the water treatment space 201 are also installed on each component. The liquid level detector 810 can monitor the water level in real time to ensure the stability of the water level during the water treatment process and avoid equipment failure or treatment efficiency problems caused by abnormal water level; the concentration detector 820 is used to monitor the concentration of dissolved substances in the water to ensure that the water quality during the water treatment process meets the preset safety and effect standards. Not only does it improve the safety and reliability of the water treatment system, but it also optimizes the water treatment efficiency and water quality by accurately controlling the treatment process. Compared with the prior art, this embodiment has significant advantages in improving water treatment efficiency, ensuring operational safety, simplifying operating procedures, etc., especially in the coupling application of forward osmosis water treatment and electrolytic hydrogen production, showing efficient energy utilization and optimized system integration.

[0070] It should be understood that the forward osmosis water treatment coupled electrolysis hydrogen production system applies a water treatment device as described above, and the specific structure of the water treatment device refers to the above embodiment. Since the forward osmosis water treatment coupled electrolysis hydrogen production system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0071] In an embodiment of the present invention, the liquid inlet 701 of the support component 100 and at least two water treatment components 200 is alternately connected to the first buffer tank 830 and the second buffer tank 840, and a control valve 850 is installed at the connection point between the liquid inlet 701 and the first buffer tank 830 or the second buffer tank 840. The control valve 850 is used to allow the drawn liquid or the liquid to be treated in the first buffer tank 830 or the second buffer tank 840 to enter the water treatment space 201 according to the monitoring results of the liquid level detector 810; the emptying port 704 is connected to an emptying valve, and the emptying valve is used to empty the liquid to be treated or the drawn liquid in the water treatment space 201 according to the monitoring results of the concentration detector 820.

[0072] Specifically, a control valve 850 is installed at the connection point between the liquid inlet 701 and the first buffer tank 830 or the second buffer tank 840. The control valve 850 controls the drawn liquid or the treated liquid in the first buffer tank 830 or the second buffer tank 840 to enter the water treatment space 201 according to the monitoring result of the liquid level detector 810.

[0073] In actual operation, when the liquid level detector 810 of a water treatment component 200 detects that the liquid level in the water treatment space 201 is lower than the preset value, the control valve 850 will open, allowing the drawn liquid or the liquid to be treated in the first buffer tank 830 or the second buffer tank 840 to enter the water treatment space 201, until the liquid level reaches the preset value and then the control valve 850 is closed. This method of automatically replenishing liquid according to the real-time liquid level monitoring results can effectively maintain the stability of the liquid level in the water treatment space 201 and ensure the continuity and efficiency of the water treatment process. At the same time, through the alternating liquid supply of the first buffer tank 830 and the second buffer tank 840, the problems of liquid level fluctuation and pressure instability caused by the long-term use of a single buffer tank can be avoided, further improving the stability and reliability of the system.

[0074] In addition, in order to timely discharge the high-concentration solution or residual liquid generated during the water treatment process to prevent it from accumulating in the system and affecting the treatment effect, the drain port 704 of each water treatment component 200 is connected to a drain valve. The drain valve automatically opens the drain valve according to the monitoring result of the concentration detector 820 when the concentration of the liquid to be treated or the drawn liquid in the water treatment space 201 exceeds the preset threshold value, and the high-concentration liquid is discharged from the system until the concentration returns to the normal range and the drain valve is closed. The concentration of the liquid in the water treatment space 201 can be effectively controlled to ensure the stability of the water treatment effect and the consistency of the water treatment quality.

[0075] In the embodiment of the present invention, the overflow ports 702 of the support assembly 100 and at least two water treatment assemblies 200 are all connected to an adjustable overflow pipe 860 , and the adjustable overflow pipe 860 is used to adjust the liquid level in the water treatment space 201 .

[0076] Specifically, by adjusting the height of the overflow pipe, the liquid level in the water treatment space 201 can be conveniently controlled. Specifically, when the liquid level exceeds a preset value, excess liquid will be discharged through the overflow pipe, so that the liquid level is restored to a preset range; conversely, when the liquid level is lower than the preset value, the discharge amount of the liquid can be reduced by increasing the height of the overflow pipe, so that the liquid level rises to a desired level.

[0077] In addition, by applying the adjustable overflow pipe 860 to the support assembly 100 and at least two water treatment assemblies 200, the coordinated control of the liquid level in the entire system can be achieved. By uniformly adjusting the liquid level in different water treatment spaces 201, the liquid flow balance between each water treatment assembly 200 and the support assembly 100 can be ensured, avoiding problems such as uneven or unstable water treatment effects caused by liquid level differences. The overall performance and reliability of the water treatment device are further improved.

[0078] As an optional embodiment, the adjustment mechanism of the adjustable overflow pipe 860 includes a fixed sleeve and an adjustment screw. The fixed sleeve is fixed at the overflow port 702, and the lower end of the tube body is inserted into the fixed sleeve and threadedly connected thereto. The adjustment screw is connected to the lower end of the tube body, and its head is exposed from the fixed sleeve. By rotating the adjustment screw, the tube body can be driven to move up and down in the fixed sleeve, thereby achieving the adjustment of the height of the tube body.

[0079] In actual operation, first, the fixed sleeve is firmly installed at the overflow port 702, and the sealing assembly is placed between the fixed sleeve and the overflow port 702 to ensure the sealing of the connection. Then, the lower end of the tube body is inserted into the fixed sleeve and connected to the fixed sleeve through a thread. Finally, the adjusting screw is rotated as needed to raise or lower the tube body to a preset height, and the installation and height adjustment of the adjustable overflow pipe 860 are completed.

[0080] As another optional embodiment, the adjustment mechanism of the adjustable overflow pipe 860 includes a fixed plate, a guide rod, a slider and an adjustment hand wheel. The fixed plate is fixed at the overflow port 702, and the guide rod is vertically fixed on the fixed plate. The lower end of the tube body is connected to the slider, and the slider is provided with a through hole that cooperates with the guide rod and can slide up and down along the guide rod. The adjustment hand wheel is connected to the slider through a screw. By rotating the adjustment hand wheel, the slider and the tube body can be driven to move up and down along the guide rod to achieve the adjustment of the height of the tube body.

[0081] During the specific installation, the fixing plate is first firmly fixed at the overflow port 702, and the sealing assembly is placed between the fixing plate and the overflow port 702. Then, the lower end of the tube body is connected to the slider, and the through hole of the slider is inserted into the guide rod. Finally, the adjustment hand wheel is rotated to move the slider and the tube body along the guide rod to a preset height, and the installation and height adjustment of the adjustable overflow pipe 860 are completed.

[0082] In the embodiment of the present invention, the overflow ports 702 of the support assembly 100 and at least two water treatment assemblies 200 are alternately connected to the concentrate storage tank 870 and the diluent storage tank 880 through the adjustable overflow pipe 860 .

[0083] Specifically, during the water treatment process, due to the different treatment functions and effects of each water treatment assembly 200, the treatment liquid produced by it will also present different concentrations. In order to make full use of these liquids of different concentrations, this embodiment sets an adjustable overflow pipe 860 at the overflow port 702 of the support assembly 100 and the water treatment assembly 200, and alternately connects it with the concentrate storage tank 870 and the dilution storage tank 880.

[0084] In actual operation, the connection mode of the adjustable overflow pipe 860 can be preset according to the treatment characteristics and outlet water concentration of each water treatment component 200. For example, for a water treatment component 200 that produces a high-concentration liquid, its overflow port 702 can be connected to the concentrated liquid storage tank 870 through the adjustable overflow pipe 860; and for a water treatment component 200 that produces a low-concentration liquid, its overflow port 702 can be connected to the dilution liquid storage tank 880 through the adjustable overflow pipe 860. Through this alternating connection mode, the treated liquids of different concentrations can be effectively separated and stored in the corresponding storage tanks for further processing or utilization.

[0085] In addition, this embodiment can also simplify the subsequent processing process. For example, the concentrated liquid can be directly reused or valuable components can be extracted without further concentration; the diluted liquid can be directly discharged or used for other purposes, thereby reducing unnecessary processing links and reducing the energy consumption and operating costs of the system.

[0086] Please continue reading Figure 8 As an optional implementation, the first buffer tank 830 is connected to the storage tank for the liquid to be treated, the second buffer tank 840 is connected to the drawn liquid storage tank, and the dilution liquid storage tank 880 is also equipped with an electrolysis device 890. After the dilution liquid in the dilution liquid storage tank 880 is electrolyzed by the electrolysis device 890, it can not only produce hydrogen but also be concentrated into drawn liquid. The drawn liquid flows back to the drawn liquid storage tank for next use, so that the drawn liquid can be recycled, reducing the loss of the drawn liquid and further reducing the cost of water treatment.

[0087] For ease of understanding, a specific implementation is shown here:

[0088] The support frame 110 and the installation frame 210 are both provided with a liquid inlet 701, an overflow port 702, an air pressure balance port 703 and an exhaust port 704. The air pressure balance port 703 is provided at the top, the exhaust port 704 is provided at the bottom, and the liquid inlet 701 and the overflow port 702 are both provided at the side. A liquid level detector 810 and a concentration detector 820 are also provided at the top of the support frame 110 and the installation frame 210. The concentration detector 820 is close to one side of the overflow port 702, and the liquid level detector 810 is close to the middle position.

[0089] The liquid inlet 701 is connected to the main buffer tank, and a remote valve is installed between the liquid inlet 701 and the main buffer tank. The remote valve opens when the liquid level drops to the lower limit and closes when the liquid level rises to the upper limit according to the monitoring result of the liquid level detector 810 of the corresponding water treatment space 201. After the remote valve is opened, the drawn liquid or the liquid to be treated in the main buffer tank enters the corresponding water treatment space 201.

[0090] The overflow port 702 is provided with a height-adjustable overflow pipe 860 , and the height of the overflow pipe outlet is adjusted according to working conditions to adjust the liquid level of each water treatment space 201 .

[0091] The drain port 704 is provided with a drain valve, which opens when the concentration of the liquid to be treated is too high or the concentration of the drawn liquid is too low according to the monitoring result of the concentration detector 820 of the corresponding water treatment space 201, thereby draining the liquid to be treated or the drawn liquid in the corresponding water treatment space 201.

[0092] After the remote valve of a water treatment space 201 is opened, the drawn liquid or the liquid to be treated in each buffer tank enters the corresponding water treatment space 201 through the principle of the communicating vessel.

[0093] The drawn liquid is converted into a dilute liquid after being treated by the water treatment device and enters the dilute liquid storage tank 880. The liquid to be treated is converted into a concentrated liquid after being treated by the water treatment device and enters the concentrated liquid storage tank 870. The dilute liquid storage tank 880 is connected to the electrolysis device 890 (chlor-alkali electrolysis device or water electrolysis device). During the electrolysis process, water is consumed to produce hydrogen and other substances, the amount of water in the drawn liquid is reduced, and the concentration is increased. It enters the drawn liquid storage tank again as a high-concentration drawn liquid to participate in the forward osmosis water treatment.

[0094] The permeable membrane 900 divides the water treatment device into a plurality of water treatment spaces 201 . Adjacent water treatment spaces 201 are respectively filled with the liquid to be treated and the drawn liquid. The liquid to be treated and the drawn liquid enter the corresponding water treatment space 201 through the liquid inlet 701 .

[0095] During the water treatment process, the gaseous water in the liquid to be treated reaches the drawn liquid through the permeable membrane 900 and dissolves into the drawn liquid. The amount of water in the liquid to be treated decreases, the concentration of soluble substances increases, and the liquid level decreases. The liquid to be treated continues to be replenished through the liquid inlet 701. The amount of water in the drawn liquid increases, the concentration of soluble substances decreases, and the liquid level increases and overflows through the overflow port 702. During the water treatment process, the high-concentration drawn liquid is continuously replenished to the water treatment space 201 through the liquid inlet 701. As the water treatment process proceeds, the concentration of soluble substances in the liquid to be treated will gradually increase, and the concentration of soluble substances in the drawn liquid will gradually decrease. In order to maintain the concentration difference between the liquid to be treated and the drawn liquid, when the concentration monitoring device shows that the concentration of the drawn liquid in a certain water treatment space 201 is too low or the concentration of the liquid to be treated is too high, the liquid in the water treatment space 201 is emptied through the venting port, and the drawn liquid or the liquid to be treated of normal concentration is re-injected.

[0096] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A water treatment device, characterized in that: include: A support assembly, wherein an assembly gap is formed in the support assembly; At least two water treatment components, at least two of which are detachably disposed in the assembly gap, and at least two of which are stacked along the extension direction of the assembly gap and are used to divide the assembly gap into a plurality of water treatment spaces; Two end plates, the two end plates are clamped at the two ends of the support assembly along the extension direction thereof, and the two end plates can move closer to or farther from each other, correspondingly pressing against or loosening the support assembly to reduce or expand the size of the assembly gap, and clamp or release the water treatment assembly in the assembly gap; Wherein, two adjacent water treatment spaces are filled with the drawn liquid and the liquid to be treated respectively, and the two adjacent water treatment spaces are connected through a permeable membrane.

2. The water treatment device according to claim 1, characterized in that: The water treatment component includes a mounting frame and a structural net, the mounting frame is surrounded to form a through opening, and mounting protrusions and mounting grooves are respectively formed on opposite sides of the mounting frame extending along the assembly gap, the mounting protrusions and the mounting grooves both extend along the circumference of the mounting frame, and the mounting protrusions and the mounting grooves are both recessed on one side facing the through opening to form a mounting groove, and the structural net is arranged in the mounting groove; in two adjacent water treatment components, the mounting protrusion of one water treatment component is limitedly fitted in the mounting groove of the other water treatment component, the permeable membrane is arranged between the mounting protrusion and the mounting groove, and a sealing gasket is also arranged between the mounting protrusion and the mounting groove.

3. The water treatment device according to claim 2, characterized in that: The support assembly includes two support frames arranged opposite to each other, the two support frames are spaced apart to form the assembly gap, and opposite sides of the two support frames are recessed to form a liquid storage tank. At least two of the water treatment assemblies located at both ends are respectively connected to the liquid storage tanks of the two support frames.

4. The water treatment device according to claim 3, characterized in that: The two support frames are a first support frame and a second support frame. The first support frame is formed with a connecting protrusion on the side facing the water treatment component, and the connecting protrusion is adapted to and limited by the mounting groove; the second support frame is formed with a connecting groove on the side facing the water treatment component, and the connecting groove is adapted to and limited by the mounting protrusion; the connecting protrusion and the connecting groove are both recessed on the side facing the liquid storage tank to form the mounting groove.

5. The water treatment device according to any one of claims 1 to 4, characterized in that: The end plate is provided with a plurality of connection holes, which are evenly distributed along the circumference of the end plate. A fixing component is detachably connected to each of the connection holes, and the two end plates are connected via the fixing component, which is used to make the two end plates approach or move away from each other.

6. The water treatment device according to claim 5, characterized in that: The fixing assembly includes a bolt and two nuts, the bolt extends along the extension direction of the assembly gap, the bolt is passed through the connecting holes of the two end plates, both ends of the bolt along the extension direction respectively extend out of the side of the two end plates away from the assembly gap, and the two nuts are respectively sleeved on the two ends of the bolt extending out of the two end plates.

7. A forward osmosis water treatment coupled electrolysis hydrogen production system, characterized in that: A water treatment device as described in any one of claims 1 to 6; the support component and at least two of the water treatment components are provided with a liquid inlet, an overflow port, an air pressure balance port and an emptying port, and the liquid inlet, the overflow port, the air pressure balance port and the emptying port are evenly distributed along the circumference of the assembly gap; the support component and at least two of the water treatment components are installed with a liquid level detector and a concentration detector connected to the water treatment space.

8. The forward osmosis water treatment coupled electrolysis hydrogen production system according to claim 7, characterized in that: The liquid inlets of the support component and at least two of the water treatment components are alternately connected to the first buffer tank and the second buffer tank, and a control valve is installed at the connection point between the liquid inlet and the first buffer tank or the second buffer tank. The control valve is used to allow the drawn liquid or the liquid to be treated in the first buffer tank or the second buffer tank to enter the water treatment space according to the monitoring result of the liquid level detector; the emptying port is connected to an emptying valve, and the emptying valve is used to empty the liquid to be treated or the drawn liquid in the water treatment space according to the monitoring result of the concentration detector.

9. The forward osmosis water treatment coupled electrolysis hydrogen production system according to claim 7, characterized in that: The support component and the overflow ports of at least two of the water treatment components are all connected with an adjustable overflow pipe, and the adjustable overflow pipe is used to adjust the liquid level in the water treatment space.

10. The forward osmosis water treatment coupled electrolysis hydrogen production system according to claim 9, characterized in that: The overflow ports of the support assembly and at least two of the water treatment assemblies are alternately connected with the concentrate storage tank and the dilution storage tank through the adjustable overflow pipe.

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