Efficient reverse osmosis device for industrial water recovery

Abstract

The invention relates to the technical field of industrial water recovery treatment, in particular to an efficient reverse osmosis device for industrial water recovery, which comprises a liquid storage cylinder, osmosis cylinders, a liquid discharge pipe, a supply and transportation structure and a cleaning brush, liquid flowing pipes are coaxially mounted in the plurality of groups of osmosis cylinders respectively, annular reverse osmosis membranes are placed in the liquid flowing pipes, one end of each osmosis cylinder is provided with the liquid discharge pipe, and the other end of each osmosis cylinder is provided with the supply and transportation structure. The supply and delivery structure comprises pressurizing pipes and a power assembly, the two pressurizing pipes are fixedly installed at one end of the permeation cylinder, liquid supply pistons slidably installed in the pressurizing pipes are driven by the power assembly to intermittently reciprocate, and the cleaning brush is rotationally installed in the permeation cylinder and is in transmission connection with a power shaft of the rotary roller through a transmission assembly. The power assembly drives the cleaning brush to clean the inner side of the reverse osmosis membrane while realizing pressurized liquid supply of the two groups of pressurizing pipes, so that fine waste which is often adsorbed on the surface of the reverse osmosis membrane during reverse osmosis filtration is cleaned and stripped, and a permeation channel is prevented from being blocked during long-time reverse osmosis operation.

Description

Technical Field

[0001] The invention relates to the technical field of industrial water recovery and treatment, in particular to a high-efficiency reverse osmosis device for industrial water recovery. Background Art

[0002] In the process of industrial production, a large amount of water resources are often consumed. The uses of these water resources include water for raw materials, water for product processing, water for boilers, water for cooling, etc. Although the industrial water consumption is large, the actual consumption is not much. The general water consumption is about 0.5% to 10% of the total water consumption, that is, more than 90% of the water can be reused after proper treatment.

[0003] Nowadays, reverse osmosis is often used to recycle industrial wastewater. Reverse osmosis is the most sophisticated membrane liquid separation technology. Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. Pressure is applied to the liquid on one side of the membrane. When the pressure exceeds its osmotic pressure, the solvent will reversely penetrate in the opposite direction of natural osmosis. Because it is opposite to the direction of natural osmosis, it is called reverse osmosis.

[0004] When existing reverse osmosis devices recycle industrial water, a small amount of waste will be mixed into the industrial water. These fine wastes will often be adsorbed on the surface of the reverse osmosis membrane during reverse osmosis filtration, and block the osmosis channel during long-term reverse osmosis operations, thereby affecting the osmosis efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency reverse osmosis device for industrial water recovery, which solves the problem that a small amount of waste is mixed in the existing industrial water. These fine wastes are often adsorbed on the surface of the reverse osmosis membrane during reverse osmosis filtration and block the osmosis channel during long-term reverse osmosis operation, thereby affecting the osmosis efficiency.

[0006] To achieve the above object, the present invention provides a high-efficiency reverse osmosis device for industrial water recovery, comprising:

[0007] Liquid storage cylinder, used for storing industrial water to be treated;

[0008] There are multiple groups of permeation cylinders, each of which has a liquid flow pipe coaxially installed therein, and a plurality of groups of communication holes are opened on the surface of the liquid flow pipe, and an annular reverse osmosis membrane is placed in the liquid flow pipe;

[0009] A liquid discharge pipe, fixedly mounted at one end of the permeation cylinder;

[0010] The supply and delivery structure includes a pressurized tube and a power assembly, two groups of the pressurized tubes are fixedly installed at one end of the osmotic cylinder, the output tube of the pressurized tube is connected to the osmotic cylinder through a first infusion tube, a first one-way valve is installed on the first infusion tube, the input end of the pressurized tube is connected to the liquid storage cylinder through a second infusion tube, a second one-way valve is installed on the second infusion tube, a liquid supply piston is slidably installed in the pressurized tube, the two groups of liquid supply pistons are driven by the power assembly to intermittently reciprocate, wherein the movement directions of the two groups of liquid supply pistons are opposite, the power assembly includes a rotary roller, the rotary roller is rotatably installed on a support frame, a tortuous and continuous sliding groove is arranged on its side, a positioning column slidably connected to the sliding groove is fixedly installed on the driving end of the liquid supply piston, and multiple groups of the rotary rollers are driven by the driving assembly to rotate synchronously;

[0011] The cleaning brush is rotatably installed in the permeation cylinder and is used for cleaning the inner side of the reverse osmosis membrane. The rotary shaft of the cleaning brush extends out of the permeation cylinder and is connected to the power shaft of the rotating roller through a transmission assembly.

[0012] When the present invention is in use, the industrial water in the osmotic cylinder is continuously pressurized and injected by two groups of correspondingly connected pressurized pipes, wherein the pressurized pipe is continuously rotated by the rotary roller in the power assembly during transportation, and cooperates with the sliding groove to be slidably connected with the positioning column to drive the two groups of liquid supply pistons to continuously reciprocate, and when the liquid supply piston slides and inserts into the corresponding pressurized pipe, the second one-way valve is in a closed state, and the industrial water in the pressurized pipe is pressurized from the first liquid infusion pipe into the osmotic cylinder, and because the movement directions of the two groups of liquid supply pistons are opposite, the liquid supply piston in the other group of pressurized pipe moves outward from the corresponding pressurized pipe and is extracted, and at this time, the first one-way valve in the first liquid infusion pipe correspondingly connected in the pressurized pipe is in a closed state, and the pressurized pipe is connected with the second liquid infusion pipe, and the industrial water in the liquid storage cylinder is extracted and infused into the pressurized pipe by the second liquid infusion pipe, and the two groups of pressurized pipes cooperate alternately to realize pressurized water supply operation for the osmotic cylinder;

[0013] The rotation of the rotary roller drives the two groups of pressurized pipes to realize continuous water supply. At the same time, the power shaft of the rotary roller is connected with the rotary shaft of the cleaning brush, so that the cleaning brush and the rotary roller rotate synchronously. The cleaning brush cleans the inner side of the reverse osmosis membrane and scrapes off the fine waste adhered to the inner side of the reverse osmosis membrane.

[0014] As a further solution of the present invention, the permeation cylinder is provided with a sealing cover on the side where the supply and delivery structure is installed.

[0015] As a further solution of the present invention, a fixing seat is installed on the driving end of the liquid supply piston, and the positioning column is fixedly connected to the fixing seat.

[0016] As a further solution of the present invention, a guide column is fixedly mounted on the fixing seat, and the guide column is limitedly slidably connected in a guide tube provided on the supporting frame.

[0017] As a further solution of the present invention, the driving assembly includes a driving shaft, a transmission volute and a transmission worm wheel. The driving shaft is rotatably mounted on a support frame. Multiple groups of the transmission volutes are coaxially fixedly mounted on the driving shaft. Multiple groups of the transmission worm wheels are coaxially mounted on the power shaft of the rotating roller and mesh with the corresponding transmission volutes for transmission. The driving shaft is driven to rotate by a power member on the support frame.

[0018] As a further solution of the present invention, the power component is a stepper motor, the stepper motor is fixedly mounted on the support frame, and the driving end of the stepper motor is fixedly connected to one end of the driving shaft through a coupling.

[0019] As a further solution of the present invention, the transmission assembly includes a first transmission gear and a second transmission gear, and the first transmission gear and the second transmission gear are coaxially mounted on the rotating shaft of the cleaning brush and the power shaft of the rotating roller.

[0020] Compared with the prior art, the present invention designs a liquid storage cylinder, an osmotic cylinder, a liquid discharge pipe, a supply structure and a cleaning brush, and uses a plurality of sets of osmotic cylinders arranged in parallel to filter the industrial water in the liquid storage cylinder by reverse osmosis, and then discharges and collects the industrial water through the liquid discharge pipe again. When the osmotic cylinder is performing the reverse osmosis operation, the rotary roller in the supply structure rotates continuously, cooperates with the sliding groove and the positioning column to slide and connect, and drives the two sets of liquid supply pistons to move back and forth continuously, so that the industrial water in the pressurized pipe connected with the liquid storage cylinder is pressurized in the first liquid delivery pipe and enters the osmotic cylinder. And because the moving directions of the two groups of liquid supply pistons are opposite, the two groups of pressure pipes cooperate to alternately realize the pressurized water supply operation to the osmosis cylinder. At the same time, the power shaft of the rotating roller is connected with the rotating shaft of the cleaning brush, so that the cleaning brush and the rotating roller rotate synchronously, and the cleaning brush cleans the inside of the reverse osmosis membrane, which solves the problem that a small amount of waste is mixed inside the existing industrial water. These fine wastes are often adsorbed on the surface of the reverse osmosis membrane during reverse osmosis filtration, and block the osmosis channel during long-term reverse osmosis operation, thereby affecting the osmosis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a high-efficiency reverse osmosis device for industrial water recovery provided by the present invention.

[0022] Figure 2 The present invention provides Figure 1 A magnified schematic diagram of center A.

[0023] Figure 3 This is a schematic diagram of the connection of the second infusion tube provided by the present invention.

[0024] Figure 4 A schematic structural diagram of the drive assembly provided by the present invention.

[0025] Figure 5 This is a schematic structural diagram of the transmission assembly provided by the present invention.

[0026] In the accompanying drawings: 1. Osmosis cylinder; 101. Sealing cover; 2. Support frame; 3. Drain pipe; 4. Cleaning brush; 401. Rotating shaft; 5. Liquid delivery pipe; 6. Reverse osmosis membrane; 7. Pressurizing pipe; 701. First infusion pipe; 702. First one-way valve; 703. Second infusion pipe; 704. Second one-way valve; 8. Power assembly; 801. Rotating roller; 8011. Power shaft; 802. Liquid supply piston; 803. Fixed seat; 804. Positioning column; 805. Guide column; 9. Driving assembly; 901. Driving shaft; 902. Transmission volute; 903. Transmission worm gear; 10. Transmission assembly; 1001. First transmission gear; 1002. Second transmission gear; 11. Liquid storage cylinder. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0028] like Figure 1 , Figure 2 as well as Figure 3 As shown, in an embodiment of the present invention, a high-efficiency reverse osmosis device for industrial water recovery includes a liquid storage cylinder 11 for storing industrial water to be treated; a plurality of permeation cylinders 1, in which a liquid flow pipe 5 is coaxially installed, and a plurality of connecting holes are provided on the surface of the liquid flow pipe 5, and a ring-shaped reverse osmosis membrane 6 is placed in the liquid flow pipe 5; a liquid discharge pipe 3 is fixedly installed at one end of the permeation cylinder 1; a supply and delivery structure includes a pressurized pipe 7 and a power assembly 8, two groups of the pressurized pipes 7 are fixedly installed at one end of the permeation cylinder 1, and the output pipe of the pressurized pipe 7 is connected to the permeation cylinder 1 through a first liquid delivery pipe 701, and a first one-way valve 702 is installed on the first liquid delivery pipe 701, and the input end of the pressurized pipe 7 is connected to the liquid storage cylinder 11 through a second liquid delivery pipe 703, and a second one-way valve 702 is installed on the second liquid delivery pipe 703. Valve 704, a liquid supply piston 802 is slidably installed in the pressurizing tube 7, and two groups of the liquid supply pistons 802 are driven by the power assembly 8 to intermittently reciprocate, wherein the moving directions of the two groups of liquid supply pistons 802 are opposite, and the power assembly 8 includes a rotary roller 801, and the rotary roller 801 is rotatably installed on the support frame 2, and a tortuous and continuous sliding groove is arranged on its side, and a positioning column 804 slidably connected to the sliding groove is fixedly installed on the driving end of the liquid supply piston 802, and multiple groups of the rotary rollers 801 are driven by the driving assembly 9 to rotate synchronously; a cleaning brush 4 is rotatably installed in the permeation cylinder 1, and is used to clean the inner side of the reverse osmosis membrane 6, and the rotary shaft 401 of the cleaning brush 4 extends out of the permeation cylinder 1, and is transmission-connected to the power shaft 8011 of the rotary roller 801 through the transmission assembly 10;

[0029] In the present invention, the industrial water in the permeation cylinder 1 is continuously pressurized and injected by two sets of correspondingly connected pressurized pipes 7. When the pressurized pipe 7 is conveyed, the rotary roller 801 in the power assembly 8 is continuously rotated, and the sliding groove and the positioning column 804 are slidably connected to drive the two sets of liquid supply pistons 802 to move back and forth continuously. When the liquid supply piston 802 slides and inserts into the corresponding pressurized pipe 7, the second one-way valve 704 is in a closed state, and the industrial water in the pressurized pipe 7 is pressurized by the first liquid delivery pipe 701. Entering into the permeation cylinder 1, and because the movement directions of the two groups of liquid supply pistons 802 are opposite, the liquid supply piston 802 in the other group of pressurized tube 7 is moved outward from the corresponding pressurized tube 7, and the first one-way valve 702 in the first liquid infusion tube 701 correspondingly connected to the pressurized tube 7 is in a closed state, and the pressurized tube 7 is connected to the second liquid infusion tube 703, and the industrial water in the liquid storage cylinder 11 is pumped out and transported to the pressurized tube 7 by the second liquid infusion tube 703, and the two groups of pressurized tubes 7 cooperate alternately to realize the pressurized water supply operation to the permeation cylinder 1;

[0030] While the rotating roller 801 rotates to drive the two groups of pressurized pipes 7 to achieve continuous water supply, the power shaft 8011 of the rotating roller 801 is connected by transmission to the rotating shaft 401 of the cleaning brush 4, so that the cleaning brush 4 and the rotating roller 801 rotate synchronously, and the cleaning brush 4 cleans the inner side of the reverse osmosis membrane 6 and scrapes off the fine waste adhered to the inner side of the reverse osmosis membrane 6.

[0031] like Figure 1 As shown, in the embodiment of the present invention, the osmotic cylinder 1 is different from the one side of the installation supply structure and is provided with a sealing cover 101. In the present invention, when the osmotic cylinder 1 completes the reverse osmosis purification operation of the preset operation time, the operator can open the sealing cover 101 at one end of the osmotic cylinder 1, remove the reverse osmosis membrane 6 in the liquid delivery pipe 5, and replace it;

[0032] In the present invention, the sealing cover 101 is preferably threadedly installed on the end of the permeation cylinder 1, and the operator can rotate the sealing cover to install or remove the sealing cover. Of course, the sealing cover can also be fixed in other detachable ways, such as bolted connection, etc.

[0033] like Figure 2As shown, in the embodiment of the present invention, the driving end of the liquid supply piston 802 is installed with a fixed seat 803, and the positioning column 804 is fixedly connected to the fixed seat 803. The side of the fixed seat 803 is provided with a mounting hole for the positioning column 804 to be inserted and fixed. In the present invention, the sliding direction of the fixed seat 803 is limited by the sliding direction of the liquid supply piston 802, and then the sliding direction of the positioning column 804 is limited. In fact, when the rotary roller 801 rotates, the positioning column 804 is slidably connected with the sliding groove on the side of the rotary roller 801, so that the positioning column 804 slides in the sliding groove, while driving the fixed seat 803 and the liquid supply piston 802 to move reciprocatingly linearly, and cooperate with the corresponding pressurizing tube 7 to realize the operation of pressurized water supply to the permeation cylinder 1 or water pumping of the liquid storage cylinder 11;

[0034] Furthermore, a guide column 805 is fixedly mounted on the fixing seat 803, and the guide column 805 is limitedly slidably connected in a guide tube provided on the support frame 2. In the present invention, when the liquid supply piston 802 slides, the guide column 805 and the guide tube slide in cooperation, further limiting the sliding of the liquid supply piston 802, thereby improving the stability of the liquid supply piston 802 when it slides back and forth;

[0035] Of course, in actual design, the guide column 805 can also be replaced by other components with guiding and limiting capabilities, such as providing a positioning sleeve that can guide and slide with multiple groups of liquid supply pistons 802, etc.

[0036] like Figure 4 As shown, in the embodiment of the present invention, the driving assembly 9 includes a driving shaft 901, a transmission volute 902 and a transmission worm wheel 903, the driving shaft 901 is rotatably mounted on the support frame 2, multiple groups of the transmission volutes 902 are coaxially fixedly mounted on the driving shaft 901, multiple groups of the transmission worm wheels 903 are coaxially mounted on the power shaft 8011 of the rotating roller 801, and mesh with the corresponding transmission volutes 902 for transmission, the driving shaft 901 is driven to rotate by the power member on the support frame 2, in the present invention, the power shaft 8011 of the multiple groups of rotating rollers 801 is linearly arranged, the driving shaft 901 is driven to rotate by the power member, and the transmission of the transmission volute 902 and the transmission worm wheel 903 on the driving shaft 901 is coordinated to convert the rotational power of the driving shaft 901 into the rotation of the rotating roller 801, and the multiple groups of rotating rollers 801 are driven by the driving shaft 901 to rotate synchronously;

[0037] Furthermore, in the present invention, the power member is a stepper motor, which is fixedly mounted on the support frame 2, and its driving end is fixedly connected to one end of the driving shaft 901 through a coupling, and the driving shaft 901 is driven by the stepper motor to rotate;

[0038] Of course, in actual design, the drive component 9 can also be replaced by other components with synchronous drive rotation capabilities, such as using multiple sets of transmission belts to connect the power shafts 8011 of adjacent rotating rollers 801, or using chain and sprocket transmission structures, etc. The present invention does not impose rigid requirements on the drive component 9.

[0039] like Figure 2 and Figure 5 As shown, in an embodiment of the present invention, the transmission assembly 10 includes a first transmission gear 1001 and a second transmission gear 1002, and the first transmission gear 1001 and the second transmission gear 1002 are coaxially mounted on the rotating shaft 401 of the cleaning brush 4 and the power shaft 8011 of the rotating roller 801. In the present invention, the radial specification of the first transmission gear 1001 is smaller than the radial specification of the second transmission gear 1002, so that when the first transmission gear 1001 and the second transmission gear 1002 are transmitting, the rotation speed of the first transmission gear 1001 is greater than that of the second transmission gear 1002, that is, the rotation speed of the cleaning brush 4 is greater than the rotation speed of the rotating roller 801, thereby ensuring the cleaning efficiency of the cleaning brush 4.

[0040] In summary, the present invention designs a liquid storage cylinder 11, an osmotic cylinder 1, a liquid discharge pipe 3, a supply structure and a cleaning brush 4, and uses a plurality of sets of osmotic cylinders 1 arranged in parallel to filter the industrial water in the liquid storage cylinder 11 by reverse osmosis, and then discharges and collects the industrial water through the liquid discharge pipe 3 again. When the osmotic cylinder 1 is performing the reverse osmosis operation, the rotary roller 801 in the supply structure rotates continuously, cooperates with the sliding groove and the positioning column 804 to slide and connect, and drives the two sets of liquid supply pistons 802 to move back and forth continuously, so that the industrial water in the pressurized pipe 7 connected to the liquid storage cylinder 11 is pressurized from the first liquid delivery pipe 701 into the osmotic cylinder 1. And because the moving directions of the two groups of liquid supply pistons 802 are opposite, the two groups of pressurized pipes 7 cooperate to alternately realize the pressurized water supply operation to the osmosis cylinder 1, and at the same time, the power shaft 8011 of the rotating roller 801 is connected with the rotating shaft 401 of the cleaning brush 4, so that the cleaning brush 4 and the rotating roller 801 rotate synchronously, and the cleaning brush 4 cleans the inside of the reverse osmosis membrane 6, which solves the problem that a small amount of waste is mixed inside the existing industrial water. These fine wastes are often adsorbed on the surface of the reverse osmosis membrane 6 during reverse osmosis filtration, and block the osmosis channel during long-term reverse osmosis operation, thereby affecting the osmosis efficiency.

[0041] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A high-efficiency reverse osmosis device for industrial water recovery, characterized in that: include: Liquid storage cylinder, used for storing industrial water to be treated; There are multiple groups of permeation cylinders, each of which has a liquid flow pipe coaxially installed therein, and a plurality of groups of communication holes are opened on the surface of the liquid flow pipe, and an annular reverse osmosis membrane is placed in the liquid flow pipe; A liquid discharge pipe, fixedly mounted at one end of the permeation cylinder; The supply and delivery structure includes a pressurized tube and a power assembly, two groups of the pressurized tubes are fixedly installed at one end of the osmotic cylinder, the output tube of the pressurized tube is connected to the osmotic cylinder through a first infusion tube, a first one-way valve is installed on the first infusion tube, the input end of the pressurized tube is connected to the liquid storage cylinder through a second infusion tube, a second one-way valve is installed on the second infusion tube, a liquid supply piston is slidably installed in the pressurized tube, the two groups of liquid supply pistons are driven by the power assembly to intermittently reciprocate, wherein the movement directions of the two groups of liquid supply pistons are opposite, the power assembly includes a rotary roller, the rotary roller is rotatably installed on a support frame, a tortuous and continuous sliding groove is arranged on its side, a positioning column slidably connected to the sliding groove is fixedly installed on the driving end of the liquid supply piston, and multiple groups of the rotary rollers are driven by the driving assembly to rotate synchronously; The cleaning brush is rotatably installed in the permeation cylinder and is used for cleaning the inner side of the reverse osmosis membrane. The rotary shaft of the cleaning brush extends out of the permeation cylinder and is connected to the power shaft of the rotating roller through a transmission assembly.

2. A high-efficiency reverse osmosis device for industrial water recovery according to claim 1, characterized in that: The permeation cylinder is provided with a sealing cover on one side of the installation supply structure.

3. A high-efficiency reverse osmosis device for industrial water recovery according to claim 1, characterized in that: A fixing seat is installed on the driving end of the liquid supply piston, and the positioning column is fixedly connected to the fixing seat.

4. A high-efficiency reverse osmosis device for industrial water recovery according to claim 3, characterized in that: A guide column is fixedly mounted on the fixing seat, and the guide column is limitedly slidably connected in a guide tube arranged on the supporting frame.

5. The high-efficiency reverse osmosis device for industrial water recovery according to claim 1, characterized in that: The driving assembly includes a driving shaft, a transmission volute and a transmission worm wheel. The driving shaft is rotatably mounted on a support frame. Multiple groups of the transmission volutes are coaxially fixedly mounted on the driving shaft. Multiple groups of the transmission worm wheels are coaxially mounted on the power shaft of the rotating roller and mesh with the corresponding transmission volutes for transmission. The driving shaft is driven to rotate by the power parts on the support frame.

6. A high-efficiency reverse osmosis device for industrial water recovery according to claim 5, characterized in that: The power component is a stepper motor, which is fixedly mounted on a support frame, and a driving end of the stepper motor is fixedly connected to one end of a driving shaft via a coupling.

7. The high-efficiency reverse osmosis device for industrial water recovery according to claim 1, characterized in that: The transmission assembly comprises a first transmission gear and a second transmission gear, and the first transmission gear and the second transmission gear are coaxially mounted on the rotating shaft of the cleaning brush and the power shaft of the rotating roller.

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