Reverse osmosis high-purity water equipment

Abstract

The utility model discloses a kind of reverse osmosis high-purity water equipment, comprising: membrane shell, multiple reverse osmosis membrane components, water inlet shunt component and concentrated water drainage component. The top of membrane shell is covered with sealing cover, and the bottom is excavated with pure water outlet pipe. Multiple reverse osmosis membrane components are inserted and installed in membrane shell upwards, and reverse osmosis membrane component includes: shell, center tube and reverse osmosis membrane. Center tube is through the center of shell, and water inlet cavity, permeation cavity and concentrated water cavity are sequentially arranged in shell from top to bottom. Reverse osmosis membrane is installed in permeation cavity, and multiple permeation holes are excavated on the sidewall between center tube and permeation cavity. The utility model is through the setting multiple reverse osmosis membrane components, reduce short reverse osmosis membrane length, and by water inlet shunt component, raw water is shunted into multiple reverse osmosis membrane components, and raw water is simultaneously subjected to reverse osmosis, so that, while ensuring the reverse osmosis efficiency of raw water, the problem of uneven permeation of longer reverse osmosis membrane is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pure water equipment technology, specifically relating to a reverse osmosis high-purity water equipment. Background Technology

[0002] A reverse osmosis (RO) high-purity water system is a water treatment device that removes residual salts in water by exchanging them with hydrogen or hydroxide ions and sending them to a concentrate stream to obtain pure water. It is widely used in many industries. The reverse osmosis membrane column is an indispensable component of the reverse osmosis EDI high-purity water system. The reverse osmosis membrane column can effectively remove inorganic salt ions, colloids, bacteria, viruses, bacterial endotoxins, and most organic impurities from the water.

[0003] In the prior art, CN201920797234.1 discloses a reverse osmosis column for a pure water machine, including a column body, an end cap at the top of the column body, a pure water pipe at the bottom of the column body, and a concentrated water pipe at the bottom of the column body. The end cap is provided with a raw water inlet pipe communicating with the column body. A reverse osmosis membrane column is provided inside the column body, and a diversion device is provided inside the column body and located between the raw water inlet pipe and the reverse osmosis membrane column. The diversion device includes a diversion pipe provided inside the column body and located between the raw water inlet pipe and the reverse osmosis membrane column, a support pipe provided inside the diversion pipe and coaxially arranged with the diversion pipe, and a multi-component diversion plate provided between the diversion pipe and the support pipe. The diversion plate is inclined to the horizontal plane and a diversion port is provided between adjacent diversion plates.

[0004] In actual use, the water to be purified always flows from the top to the bottom of the equipment. Therefore, when the water enters the equipment, it will preferentially permeate the reverse osmosis membrane column, which means that the water cannot permeate and react evenly with the entire reverse osmosis membrane column. As a result, after the equipment has been used for a long time, the clogging at the top of the reverse osmosis membrane column will be significantly higher than that at the bottom.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a reverse osmosis high-purity water device.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a reverse osmosis high-purity water device that can solve the problem of uneven water permeation between the reverse osmosis membrane column and water when using existing reverse osmosis pure water devices.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] A reverse osmosis high-purity water device includes: a membrane housing, multiple reverse osmosis membrane modules, a feed water distribution module, and a concentrate drainage module.

[0010] The membrane housing is topped with a sealing cap and has a pure water outlet pipe at the bottom. Multiple reverse osmosis membrane modules are installed upwards within the membrane housing. Each reverse osmosis membrane module includes a housing, a central tube, and a reverse osmosis membrane. The central tube passes through the center of the housing, and the housing contains, from top to bottom, a feed chamber, a permeate chamber, and a concentrate chamber. The reverse osmosis membrane is installed within the permeate chamber, and multiple permeate holes are formed on the sidewall between the central tube and the permeate chamber. A first inlet and a first outlet are respectively formed on the sidewalls of the feed chamber and the concentrate chamber at opposite ends. The feed water distribution assembly is fixed to the sidewall of the membrane housing. The concentrate drainage assembly is fixed to the sidewall of the membrane housing away from the feed water distribution assembly.

[0011] In one embodiment of this utility model, a pair of limiting grooves are chiseled on the inner wall of the membrane shell, and a pair of limiting strips adapted to the limiting grooves are fixed on the two side walls of the shell. The shell is locked into the pair of limiting grooves by the pair of limiting strips, thereby locking the shell and preventing the shell from rotating. Furthermore, the shell is positioned and installed so that multiple first inlets and first outlets correspond to multiple second inlets and multiple second outlets.

[0012] In one embodiment of this utility model, each of the plurality of housings has a connector fixed to its bottom, and each of the plurality of housings has a groove for insertion that matches the connector. The plurality of housings are connected to each other by the connectors into the grooves on the lower housing, thereby connecting the plurality of housings together vertically and thereby connecting the central tubes inside the plurality of housings together.

[0013] In one embodiment of this utility model, a plug adapted to a connector groove is fixed to the bottom of the sealing cap. The connector is inserted into the pure water outlet pipe. The plug serves two purposes: firstly, it connects to the connector groove located on the uppermost housing to seal the tops of the multiple central tubes; secondly, when the sealing cap is closed on top of the membrane housing, the plug presses the multiple housings downwards. Additionally, a connector located at the bottom of the lowermost housing is inserted into the pure water outlet pipe, allowing pure water from the multiple central tubes to drain from the outlet pipe.

[0014] In one embodiment of this utility model, an annular groove is chiseled at the top opening of the insertion slot, and a sealing ring is installed in the annular groove to increase the sealing of the connection between multiple central tubes.

[0015] In one embodiment of this utility model, multiple drain holes are drilled on the sidewalls between the water inlet chamber and the permeation chamber, and between the permeation chamber and the concentrate chamber. The raw water in the water inlet chamber flows into the permeation chamber through the drain holes, and the concentrate produced by reverse osmosis in the permeation chamber flows into the water inlet chamber through the drain holes.

[0016] In one embodiment of this utility model, the inlet water diversion assembly includes: a diversion pipe, a plurality of second inlets, and an inlet pipe. The diversion pipe is fixed to the side wall of the membrane housing. The plurality of second inlets are formed on the side wall of the diversion pipe near the membrane housing and are respectively connected to the plurality of first inlets. The inlet pipe is fixed to the top end of the diversion pipe and is connected to the diversion pipe;

[0017] In use, raw water is added into the diversion pipe through the inlet pipe, and the raw water is diverted through the diversion pipe and flows into multiple inlet chambers through multiple second inlets and the first inlet.

[0018] In one embodiment of this utility model, the diversion pipe is provided with multiple water collection chambers corresponding to the second water inlet, and the second water inlet is located at the bottom of the water collection chamber. A drain pipe is provided between each of the multiple water collection chambers and the side wall of the diversion pipe, with each pair of drain pipes intersecting on both sides of the diversion pipe. When raw water is added to the diversion pipe through the inlet pipe, it first enters the topmost water collection chamber. After filling the chamber, the raw water flows down the drain pipe on one side of the chamber into the next water collection chamber, gradually flowing into multiple water collection chambers in this manner. Then, the raw water flows into the inlet chamber through the second and first inlets within the multiple water collection chambers. The intersecting arrangement of the drain pipes on both sides ensures that raw water only flows from one side of the drain pipe into the next water collection chamber after the upper water collection chamber is full, preventing any intermediate water collection chamber from being empty.

[0019] In one embodiment of this utility model, the concentrate drainage assembly includes: a drain pipe, a plurality of second outlets, and a concentrate outlet pipe. The drain pipe is fixed to the side wall of the membrane housing away from the inlet diversion assembly. The plurality of second outlets are formed in the side wall between the drain pipe and the membrane housing, and are respectively connected to the plurality of first outlets. The concentrate outlet pipe is fixed to the bottom end of the drain pipe and is connected to the drain pipe.

[0020] During use, the concentrated water in multiple concentrated water chambers flows into the drain pipe through multiple first water outlets and multiple second water outlets, and is discharged through the concentrated water outlet pipe at the bottom.

[0021] In one embodiment of this invention, baffles are provided on the outer walls of the plurality of drain pipes. These baffles intercept the flowing concentrated water from above, preventing it from flowing back into the concentrated water chamber below.

[0022] Compared with the prior art, the reverse osmosis high-purity water equipment of this utility model is equipped with multiple reverse osmosis membrane modules. While shortening the length of the reverse osmosis membrane, the raw water is diverted into multiple reverse osmosis membrane modules through the feed water diversion module, and the raw water is reverse osmosised at the same time. Thus, while ensuring the reverse osmosis efficiency of the raw water, the problem of uneven permeation of the long reverse osmosis membrane is reduced. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional view of a reverse osmosis high-purity water device according to one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the reverse osmosis membrane module in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the diversion tube in one embodiment of the present invention.

[0027] Explanation of key figure labels:

[0028] 1-Membrane housing, 101-Sealing cap, 102-Plug, 103-Limiting strip, 104-Limiting groove, 105-Pure water outlet pipe, 2-Reverse osmosis membrane module, 201-Housing shell, 202-Center tube, 203-Permeation chamber, 204-Inlet chamber, 205-Concentrate chamber, 206-Reverse osmosis membrane, 207-Drain hole, 208-First inlet, 209-First outlet, 210-Plug connector, 211-Plug slot, 212-Sealing ring, 213-Permeation hole, 3-Inlet water diversion assembly, 301-Diversion pipe, 302-Second inlet, 303-Collection chamber, 304-Drain pipe, 305-Inlet pipe, 4-Concentrate drainage assembly, 401-Drain pipe, 402-Second outlet, 403-Baffle, 404-Concentrate outlet pipe. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0030] like Figures 1 to 3 As shown, a reverse osmosis high-purity water device in one embodiment of the present invention includes: a membrane housing 1, multiple reverse osmosis membrane modules 2, a feed water distribution module 3, and a concentrate drainage module 4.

[0031] like Figures 1 to 3 As shown, the top of the membrane housing 1 is covered with a sealing cap 101, and the bottom has a pure water outlet pipe 105. Multiple reverse osmosis membrane modules 2 are installed upwards inside the membrane housing 1. Each reverse osmosis membrane module 2 includes a housing 201, a central tube 202, and a reverse osmosis membrane 206. The central tube 202 passes through the center of the housing 201. From top to bottom, the housing 201 has an inlet chamber 204, a permeate chamber 203, and a concentrate chamber 205. The reverse osmosis membrane 206 is installed inside the permeate chamber 203. Multiple permeate holes 213 are drilled on the side wall between the central tube 202 and the permeate chamber 203. A first inlet 208 and a first outlet 209 are respectively drilled on the side walls of the inlet chamber 204 and the concentrate chamber 205 at their opposite ends. An inlet water distribution assembly 3 is fixed to the side wall of the membrane housing 1. A concentrate drainage assembly 4 is fixed to the side wall of the membrane housing 1 away from the inlet water distribution assembly 3.

[0032] In use, multiple housings 201 are installed inside the membrane housing 1, one above the other, so that multiple central tubes 202 are sealed together. Then, the sealing cover 101 is placed on the membrane housing 1, pressing the multiple housings 201 downwards into the membrane housing 1. At the same time, the central tubes 202 on the bottom housing 201 are connected to the pure water outlet pipe 105. Then, the raw water is diverted to multiple first inlets 208 through the inlet water diversion assembly 3. The raw water enters the inlet chamber 204 through the first inlet water inlet 208, and then flows downwards into the permeation chamber 203 through the inlet water chamber 204. In the permeation chamber 203, the raw water undergoes reverse osmosis through the reverse osmosis membrane 206. The reverse osmosis pure water flows into the central tube 202 through the permeation hole 213, and then flows downwards through the central tube 202 and out from the pure water outlet pipe 105. In addition, the concentrate produced by reverse osmosis flows downward from the permeation chamber 203 into the concentrate chamber 205, and then flows into the concentrate drainage assembly 4 through the first outlet 209, and finally flows out through the concentrate drainage assembly 4.

[0033] like Figures 1 to 3As shown, a pair of limiting grooves 104 are carved into the inner wall of the membrane shell 1, and a pair of limiting strips 103 adapted to the limiting grooves 104 are fixed on both side walls of the shell 201. The shell 201 is locked into the pair of limiting grooves 104 by the pair of limiting strips 103, thereby locking the shell 201 and preventing the shell 201 from rotating. The shell 201 is also positioned so that the multiple first water inlets 208 and the first water outlets 209 correspond to the multiple second water inlets 302 and the multiple second water outlets 402.

[0034] like Figures 1 to 3 As shown, each of the multiple housings 201 has a connector 210 fixed to its bottom, and each of the multiple housings 201 has a connector groove 211 cut into its top to fit the connector 210. The multiple housings 201 are connected to each other by the connector 210 into the connector groove 211 on the lower housing 201, thereby connecting the multiple housings 201 together vertically, and thus connecting the central tubes 202 inside the multiple housings 201 together.

[0035] like Figures 1 to 3 As shown, a plug 102 adapted to the insertion slot 211 is fixed at the bottom of the sealing cover 101. The plug 210 is inserted into the pure water outlet pipe 105. The plug 102 is used to connect to the insertion slot 211 located in the uppermost housing 201 to seal the top of the multiple central tubes 202. On the other hand, when the sealing cover 101 is closed on the top of the membrane housing 1, the plug 102 presses the multiple housings 201 downwards. In addition, the plug 210 located at the bottom of the lowermost housing 201 is inserted into the pure water outlet pipe 105, so that the pure water in the multiple central tubes 202 is discharged from the pure water outlet pipe 105.

[0036] like Figures 1 to 3 As shown, an annular groove is carved at the top opening of the insertion slot 211, and a sealing ring 212 is installed inside the annular groove to increase the sealing of the connection between the multiple central tubes 202. Multiple drain holes 207 are carved on the side walls between the water inlet chamber 204 and the permeation chamber 203, and between the permeation chamber 203 and the concentrate chamber 205. The raw water in the water inlet chamber 204 flows into the permeation chamber 203 through the drain holes 207, and the concentrate from the reverse osmosis in the permeation chamber 203 flows into the water inlet chamber 204 through the drain holes 207.

[0037] like Figures 1 to 3As shown, the inlet diversion assembly 3 includes: a diversion pipe 301, multiple second inlets 302, and an inlet pipe 305. The diversion pipe 301 is fixed to the side wall of the membrane housing 1. The multiple second inlets 302 are cut into the side wall of the diversion pipe 301 near the membrane housing 1 and are respectively connected to multiple first inlets 208. The inlet pipe 305 is fixed to the top of the diversion pipe 301 and is connected to the diversion pipe 301. In use, raw water is added into the diversion pipe 301 through the inlet pipe 305, and the raw water is diverted through the diversion pipe 301 and flows into multiple inlet chambers 204 through the multiple second inlets 302 and the first inlets 208.

[0038] like Figures 1 to 3 As shown, the diversion pipe 301 is provided with multiple water collection chambers 303 corresponding to the second water inlet 302, and the second water inlet 302 is located at the bottom of the water collection chamber 303. A drain pipe 304 is provided between each of the multiple water collection chambers 303 and the side wall of the diversion pipe 301, with each pair of drain pipes 304 positioned alternately on both sides of the diversion pipe 301. When raw water is added to the diversion pipe 301 through the water inlet pipe 305, it first enters the topmost water collection chamber 303. After filling the water collection chamber 303, the raw water flows down along the drain pipe 304 on one side of the water collection chamber 303 into the next water collection chamber 303. This process is repeated to gradually fill the multiple water collection chambers 303. Then, the raw water flows from the multiple water collection chambers 303 into the water inlet chamber 204 through the second water inlet 302 and the first water inlet 208. The drain pipes 304 are positioned at different intervals on the two side walls of the branch pipe 301, so that the original water will flow from the drain pipe 304 on one side to the next drain pipe 304 only after the upper water collection chamber 303 is full, and there will be no empty state in the middle water collection chamber 303.

[0039] like Figures 1 to 3 As shown, the concentrate drainage assembly 4 includes: a drain pipe 401, multiple second outlets 402, and a concentrate outlet pipe 404. The drain pipe 401 is fixed to the side wall of the membrane housing 1 away from the inlet diversion assembly 3. Multiple second outlets 402 are formed in the side wall between the drain pipe 401 and the membrane housing 1, and are respectively connected to multiple first outlets 209. The concentrate outlet pipe 404 is fixed to the bottom end of the drain pipe 401 and is connected to it. In use, the concentrate in the multiple concentrate chambers 205 flows into the drain pipe 401 through the multiple first outlets 209 and the multiple second outlets 402, and is discharged through the concentrate outlet pipe 404 at the bottom. Each of the multiple drain pipes 402 has a baffle 403 on its outer wall. The baffles 403 prevent the concentrated water flowing downwards from flowing back into the concentrate chambers 205 below.

[0040] Working principle: In use, the connectors 210 at the bottom of the multiple housings 201 are inserted into the slots 211 of the lower housing 201, thereby installing the multiple housings 201 in the membrane housing 1 in an interlocking manner, so that the multiple central tubes 202 are sealed together. Then, the sealing cover 101 is placed on the membrane housing 1, so that the sealing cover 101 presses the multiple housings 201 downwards into the membrane housing 1, and at the same time, the connectors 210 on the bottom housing 201 are inserted into the pure water outlet pipe 105.

[0041] Then, the raw water is added into the diversion pipe 301 through the inlet pipe 305. The raw water is diverted through the diversion pipe 301 and flows into multiple inlet chambers 204 through multiple second inlet ports 302 and first inlet ports 208. Then, it flows down into the permeation chamber 203 through the inlet chamber 204. In the permeation chamber 203, the raw water undergoes reverse osmosis through the reverse osmosis membrane 206. The pure water from the reverse osmosis flows into the central pipe 202 through the permeation hole 213 and then flows down through the central pipe 202 and out from the pure water outlet pipe 105.

[0042] In addition, the concentrate produced by reverse osmosis flows downward from the permeation chamber 203 into the concentrate chamber 205, and then flows into the concentrate drainage assembly 4 through the first outlet 209 and the second outlet 402, and finally flows out through the concentrate outlet pipe 404.

[0043] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reverse osmosis high-purity water device, characterized in that, include: A membrane housing, the top of which is covered with a sealing cap, and a pure water outlet pipe is cut out at the bottom of the membrane housing; Multiple reverse osmosis membrane modules are disposed within the membrane housing. Each reverse osmosis membrane module includes a housing, a central tube, and a reverse osmosis membrane. The central tube passes through the center of the housing. From top to bottom, the housing is provided with an inlet chamber, a permeate chamber, and a concentrate chamber. The reverse osmosis membrane is installed in the permeate chamber. Multiple permeate holes are drilled on the side wall between the central tube and the permeate chamber. A first inlet and a first outlet are drilled on the side wall of the inlet chamber and the concentrate chamber, respectively, at their ends away from each other. The water inlet diversion assembly is fixed to the side wall of the membrane housing; and The concentrate drainage assembly is fixed on the side wall of the membrane housing away from the inlet diversion assembly.

2. The reverse osmosis high-purity water equipment according to claim 1, characterized in that, A pair of limiting grooves are cut into the inner wall of the membrane shell, and a pair of limiting strips that are adapted to the limiting grooves are fixed on the two side walls of the shell.

3. The reverse osmosis high-purity water equipment according to claim 1, characterized in that, Each of the housings has a connector fixed to its bottom, and each of the housings has a socket groove cut into its top to fit the connector.

4. The reverse osmosis high-purity water equipment according to claim 3, characterized in that, The bottom of the sealing cover is fixed with a plug that matches the insertion slot, and the plug is inserted into the pure water outlet pipe.

5. A reverse osmosis high-purity water equipment according to claim 3, characterized in that, A circular groove is chiseled at the top opening of the insertion slot, and a sealing ring is installed inside the circular groove.

6. The reverse osmosis high-purity water equipment according to claim 1, characterized in that, Multiple drainage holes are drilled on the side walls between the water inlet chamber and the permeation chamber, and between the permeation chamber and the concentrate chamber.

7. The reverse osmosis high-purity water equipment according to claim 1, characterized in that, The inlet and outlet diversion assembly includes: The shunt tube is fixed to the side wall of the membrane housing; Multiple second inlets are excavated on the side wall of the diversion pipe near the membrane housing, and are respectively connected to multiple first inlets; and The water inlet pipe is fixed to the top of the branch pipe and is connected to the branch pipe.

8. A reverse osmosis high-purity water equipment according to claim 7, characterized in that, The diversion pipe is provided with multiple water collection chambers corresponding to the second water inlet, and the second water inlet is located at the bottom of the water collection chamber. A drain pipe is provided between the multiple water collection chambers and the side wall of the diversion pipe, and the drain pipes are arranged intersectingly on the two side walls of the diversion pipe.

9. A reverse osmosis high-purity water equipment according to claim 1, characterized in that, The concentrate drainage assembly includes: The drain pipe is fixed to the side wall of the membrane housing away from the water inlet diversion assembly; Multiple second outlets are excavated in the sidewall between the drain pipe and the membrane shell, and are respectively connected to multiple first outlets; and A concentrated water outlet pipe is fixed to the bottom end of the drain pipe and connected to the drain pipe.

10. A reverse osmosis high-purity water device according to claim 9, characterized in that, Each of the aforementioned drain pipes is equipped with a flow deflector on its outer wall.

Images