A membrane device for industrial water supply

Abstract

The present invention discloses a membrane device for industrial water supply, which relates to the field of water filtering equipment, and comprises an upper cylinder and a lower cylinder. A hydraulic cylinder is arranged in the upper cylinder, and an expansion core structure is connected to the output shaft of the hydraulic cylinder; the expansion core structure comprises a motor part and an expansion core, the expansion core is mounted on the motor part and can be driven to rotate by the motor part, and a filter membrane structure is arranged directly below the expansion core; the filter membrane structure is mounted on a support frame, and the support frame comprises a support rod and a floating seat structure, the support rod is distributed in a circular shape and is used to support the filter membrane structure, the bottom of the support rod is fixed on the floating seat structure, and the bottom of the floating seat structure is fixedly mounted on the fixed seat structure; the invention can obtain a filter membrane with pleats, increase the surface area of ​​the filter membrane, and obtain a better filtering effect.

Description

Technical Field

[0001] The invention relates to the field of water filtering equipment, in particular to a membrane device for industrial water supply. Background Art

[0002] Among the sources of industrial water, in addition to a part coming from the water supply of water plants, some comes from natural water bodies such as rivers, sea water or groundwater. Because the water supplied by these sources contains a large amount of impurities, it cannot be used directly in many factory equipment.

[0003] For these water bodies containing impurities, they need to go through multiple processes for filtration. Among them, filtration through membrane devices such as semi-permeable membranes or ultrafiltration membranes is an indispensable and important process. The method of use is to use pressurized water to make water pass through the filter membrane while blocking impurities in the water. After long-term use, the filter membrane needs to withstand the pressure from the water, and because the spread area of ​​the filter membrane is limited, the amount of filtered water is also limited. At the same time, if these water bodies contain some filamentous or flocculent impurities, such as algae, fibers and other tiny impurities, when they are blocked outside the filter membrane, they are easy to entangle with each other and cover the filter membrane, and subsequent cleaning will be very difficult. Summary of the invention

[0004] The object of the present invention is to provide a membrane device for industrial water supply to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a membrane device for industrial water supply, comprising a cylinder, the cylinder being divided into an upper cylinder and a lower cylinder, a hydraulic cylinder being arranged in the upper cylinder, and an expansion core structure being connected to the output shaft of the hydraulic cylinder;

[0006] The expansion core structure includes a motor part and an expansion core, the expansion core is mounted on the motor part and can be driven to rotate by the motor part, a filter membrane structure is arranged directly below the expansion core, and multiple filter screens are arranged on the outer side of the filter membrane structure;

[0007] The filter membrane structure is installed on a support frame, and the support frame includes support rods and a floating seat structure. The support rods are distributed in a circular shape and are used to support the filter membrane structure. The bottom of the support rods is fixed on the floating seat structure. The floating seat structure can move up and down in the vertical direction and change the shape of the filter membrane structure by moving and cooperating with the expansion core structure. The bottom of the floating seat structure is fixedly installed on the fixed seat structure.

[0008] Preferably, a guide baffle is provided between the upper cylinder and the lower cylinder, a guide sleeve is provided on the guide baffle, the motor part is slidably arranged in the guide sleeve, and a water inlet and a water outlet are provided on the lower cylinder.

[0009] Preferably, the motor part includes a fixing sleeve and a motor, the fixing sleeve is fixedly connected to the output shaft of the hydraulic cylinder, and the motor is fixedly installed in the fixing sleeve.

[0010] Preferably, the expansion core includes a guide section and an expansion section. The guide section is in a pointed cone shape and is arranged below the expansion section. The diameter of the lowermost end of the guide section is smaller than the diameter of the circle formed by the support rods. The diameter of the expansion section is equal to the diameter of the filter membrane structure after expansion.

[0011] Preferably, a pressure pad is provided at the bottom of the guide section, and a positioning groove is provided on the guide section.

[0012] Preferably, the filter membrane structure includes a filter membrane, an upper fixing ring, a lower fixing ring and a connecting strip, the upper and lower ends of the filter membrane are respectively fixed in the upper fixing ring and the lower fixing ring, the upper fixing ring and the lower fixing ring are connected by a connecting strip, and the lower fixing ring is made of magnetic material.

[0013] Preferably, the top of the support rod is provided with an avoidance slope.

[0014] Preferably, the floating seat structure includes a support rod base, a water-permeable sleeve, a support plate, a pad and a floating seat, the support rod base is used to install the support rod, the support rod base is fixedly mounted on the floating seat, the water-permeable sleeve is provided with a water-permeable hole and the bottom is fixedly connected to the support rod base, the support plate is sleeved on all the support rods and fixed to the upper end of the water-permeable sleeve, the pad is fixedly mounted on the partition, the partition is fixedly mounted in the lower cylinder, and the bottom of the floating seat is fixedly mounted on the fixed seat structure.

[0015] Preferably, a protrusion and a recess are provided on the support rod base, the support rod is located on the protrusion, a magnetic block is provided on the innermost side of the recess, and structures cooperating with the protrusion and the recess are provided on the pad and the partition.

[0016] Preferably, the fixing seat structure comprises a guide plate, a spring and a cover tube, the guide plate is slidably installed in the cover tube, and the spring is installed in the cover tube with the top resting on the guide plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The invention supports the filter membrane structure through a support rod, so as to obtain a filter membrane with pleats, increase the surface area of ​​the filter membrane, and thus improve the service life of the filter membrane and obtain a better filtering effect;

[0019] 2. The filter membrane provided in the invention has a protruding part and a concave part during use. Under the pressure and flow of the external water body, the filtered impurities will accumulate at the concave part, which is convenient for the centralized collection of impurities. At the same time, the protruding part can be kept as free of impurities as possible, which prolongs the use time and is also convenient for the subsequent cleaning of impurities.

[0020] 3. The expansion core of the invention can completely expand the filter membrane with pleats, making it easier to remove impurities in the original recessed part by flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A top view of the present invention;

[0022] Figure 2 for Figure 1 Sectional view at inner AA;

[0023] Figure 3 for Figure 2 A magnified view of the structure at inner B;

[0024] Figure 4 is a schematic diagram of the support frame structure;

[0025] Figure 5 It is a schematic diagram of the structure of the support frame;

[0026] Figure 6 This is an enlarged view of the filter structure without the filter membrane installed;

[0027] Figure 7 This is a schematic diagram of the support frame structure decomposition;

[0028] Figure 8 It is a schematic diagram of the overall structure of the present invention.

[0029] In the figure: 1- cylinder; 11- upper cylinder; 12- lower cylinder; 13- guide baffle; 14- guide sleeve;

[0030] 3-Hydraulic cylinder;

[0031] 4- expansion core structure; 41- motor part; 411- fixed sleeve; 412- motor;

[0032] 42- expansion core; 421- guide section; 422- expansion section; 423- pressure pad; 424- positioning groove;

[0033] 5-filter membrane structure; 51-filter membrane; 52-upper fixing ring; 53-lower fixing ring; 54-connecting strip;

[0034] 6-support frame; 61-support rod;

[0035] 62- floating seat structure; 621- support rod base; 622- water-permeable sleeve; 623- support plate; 624- pad; 625- floating seat; 626- magnetic block; 65- partition;

[0036] 7-fixed seat structure; 71-guide plate; 72-spring; 73-cover tube. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figures 1 to 8 The present invention provides a technical solution: a membrane device for industrial water supply, comprising a cylinder 1, wherein the cylinder 1 is divided into an upper cylinder 11 and a lower cylinder 12, wherein a hydraulic cylinder 3 is arranged in the upper cylinder 1, and an expansion core structure 4 is connected to the output shaft of the hydraulic cylinder 3;

[0039] The expansion core structure 4 includes a motor part 41 and an expansion core 42. The expansion core 42 is mounted on the motor part 41 and can be driven to rotate by the motor part 41. A filter membrane structure 5 is provided directly below the expansion core 42.

[0040] The filter membrane structure 5 is installed on a support frame 6, and the support frame 6 includes a support rod 61 and a floating seat structure 62. The support rod 61 is distributed in a circular shape and is used to support the filter membrane structure 5. The bottom of the support rod 61 is fixed on the floating seat structure 62. The floating seat structure 62 can move up and down in the vertical direction and change the shape of the filter membrane structure 5 by moving and cooperating with the expansion core structure 4. The bottom of the floating seat structure 62 is fixedly installed on the fixed seat structure 7.

[0041] In this embodiment, a guide baffle 13 is provided between the upper cylinder 11 and the lower cylinder 12, a guide sleeve 14 is provided on the guide baffle 13, the motor part 41 is slidably arranged in the guide sleeve 14, and a water inlet and a water outlet are provided on the lower cylinder 12, the water inlet is used for adding water, and the water outlet is used for discharging filtered water.

[0042] In this embodiment, the motor part 41 includes a fixed sleeve 411 and a motor 412. The fixed sleeve 411 is fixedly connected to the output shaft of the hydraulic cylinder 3. The motor 412 is fixedly installed in the fixed sleeve 411. The fixed sleeve 411 is slidably installed in the guide sleeve 14, and can provide guidance when moving up and down.

[0043] In this embodiment, the expansion core 42 includes a guide section 421 and an expansion section 422. The guide section 421 is in a pointed cone shape and is arranged below the expansion section 422. The diameter of the lowermost end of the guide section 421 is smaller than the diameter of the circle surrounded by the support rods 61. The diameter of the expansion section 422 is equal to the diameter of the filter membrane structure 5 after expansion. The entire expansion core 42 descends, pressing the support rod 61 downward, and then the expansion section 422 enters the filter membrane 51 to expand the entire filter membrane and open the pleats on the filter membrane.

[0044] In this embodiment, a pressure pad 423 is provided at the bottom of the guide section 421, and a positioning groove 424 is provided on the guide section 421. The pressure pad 423 is used to press down the water-permeable sleeve 622, and the positioning groove 424 cooperates with the support column 61 to position the support column 61 and prevent the support column 61 from swinging.

[0045] In this embodiment, the filter membrane structure 5 includes a filter membrane 51, an upper fixing ring 52, a lower fixing ring 53 and a connecting strip 54. The upper and lower ends of the filter membrane 51 are respectively fixed in the upper fixing ring 52 and the lower fixing ring 53. The upper fixing ring 52 and the lower fixing ring 53 are connected by the connecting strip 54. The lower fixing ring 53 is made of magnetic material. The filter membrane 51 is always kept in a vertical open state through the fixing and clamping of the upper fixing ring 52, the lower fixing ring 53 and the connecting strip 54, and will not be stacked under the influence of gravity. At the same time, the upper fixing ring 52 and the lower fixing ring 53 are made of materials that can be deformed under force.

[0046] In this embodiment, the top of the support rod 61 is provided with an avoidance slope, so that when the support rod 61 floats up and enters the filter membrane 51, the filter membrane 51 will not be scratched.

[0047] In this embodiment, the floating seat structure 62 includes a support rod base 621, a water-permeable sleeve 622, a support plate 623, a pad 624 and a floating seat 625. The support rod base 621 is used to install the support rod 61, and the support rod base 621 is fixedly installed on the floating seat 625. The water-permeable sleeve 622 is provided with a water-permeable hole and the bottom is fixedly connected to the support rod base 621. The support plate 623 is sleeved on all the support rods 61 and fixed on the upper end of the water-permeable sleeve 622. The pad 624 is fixedly mounted on the partition 65, and the partition 65 is fixedly mounted in the lower cylinder 12. The bottom of the floating seat 625 is fixedly mounted on the fixed seat structure 7. When the support rod 61 is supported into the filter membrane 51, the water pressure will cause the filter membrane 51 to remain protruding at the position where the support rod 61 is present, and to form a depression at the position where the support rod 61 is not present. At the same time, the support plate 623 is located below the upper fixing ring 52 to support the upper fixing ring 52 from below to prevent the filter membrane 51 from collapsing under the water pressure.

[0048] In this embodiment, a protrusion and a recess are provided on the support rod base 621, and the support rod 61 is located on the protrusion. A magnetic block 626 is provided on the innermost side of the recess. The pad 624 and the partition 65 are provided with structures that cooperate with the protrusion and the recess. Through the attraction of the magnetic block 626 to the lower fixing ring 53 and the external water pressure, the filter membrane 51 will also have a protrusion and a recess. The recess is used to concentrate the impurities to be filtered, so that the filamentous impurities can be located in the recess as much as possible to avoid them covering the filter membrane and entangled with the filamentous impurities to form mesh impurities that are difficult to handle.

[0049] In this embodiment, the fixed seat structure 7 includes a guide plate 71, a spring 72, and a cover tube 73. The guide plate 71 is slidably installed in the cover tube 73. The spring is installed in the cover tube 73 and the top is on the guide plate 71. When the hydraulic cylinder 3 presses down the expansion core 42 and finally presses down the support rod base 621, it will overcome the elastic force of the spring 72 to move the entire support frame 6 downward, which makes it easier to make room for the expansion core 42 to enter the filter membrane 51. The bottom of the cover tube 73 is connected to the positioning seat through a rotating shaft, and the positioning seat is fixed on the floor of the lower cylinder 12. Since the cover tube 73 and the positioning seat are rotatably connected, the two can rotate relative to each other.

[0050] Working principle: When filtering industrial water, the hydraulic cylinder 3 does not press down, and the support rod 61 is supported in the filter membrane 51. At this time, the filter membrane 51 presents a corrugated shape with fixed folds under the combined effect of the external water pressure and the attraction of the lower fixing ring 53 and the magnetic suction block 626 at the bottom. The filtered impurities will be accumulated in the recessed part under the guidance of the water flow and the shape of the filter membrane 51. At this time, the upper fixing ring 52 is supported by the support plate 626 to prevent the filter membrane 51 from loosening. When the filter membrane needs to be cleaned after using it for a period of time, the expansion core 42 is pressed down by the hydraulic cylinder 3, and the pressure pad 423 is set to press down the water-permeable sleeve 622, and at the same time, the fixed The positioning groove 424 fixes the support rod 61, which will press the entire support frame 6 downward until the entire expansion section 422 enters the filter membrane 51, so that the filter membrane 51 originally with wrinkles is stretched out and located on the expansion core 42, and is driven by the motor 412 to rotate at high speed, and the impurities on the filter membrane 51 are washed off with the pumped water. After the cleaning is completed, the expansion core 42 is raised by the hydraulic cylinder 3, and then the support frame 6 is reset under the action of the spring 72, and the support rod 61 re-enters the filter membrane 51, and then under the action of the external water pressure, it is restored to a corrugated shape with fixed wrinkles for filtering.

[0051] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A membrane device for industrial water supply, characterized in that: It comprises a cylinder (1), the cylinder (1) being divided into an upper cylinder (11) and a lower cylinder (12), a hydraulic cylinder (3) being arranged in the upper cylinder (1), and an expansion core structure (4) being connected to the output shaft of the hydraulic cylinder (3); The expansion core structure (4) comprises a motor part (41) and an expansion core (42); the expansion core (42) is mounted on the motor part (41) and can be driven to rotate by the motor part (41); a filter membrane structure (5) is provided directly below the expansion core (42); and multiple filter screens are further provided on the outer side of the filter membrane structure (5); The filter membrane structure (5) is mounted on a support frame (6); the support frame (6) comprises a support rod (61) and a floating seat structure (62); the support rod (61) is distributed in a circular shape and is used to support the filter membrane structure (5); the bottom of the support rod (61) is fixed on the floating seat structure (62); the floating seat structure (62) can move up and down in a vertical direction and change the shape of the filter membrane structure (5) by moving and cooperating with the expansion core structure (4); the bottom of the floating seat structure (62) is fixedly mounted on the fixed seat structure (7); The expansion core (42) comprises two parts, a guide section (421) and an expansion section (422); the guide section (421) is in a pointed cone shape and is arranged below the expansion section (422); the diameter of the lowermost end of the guide section (421) is smaller than the diameter of the circle formed by the support rods (61); and the diameter of the expansion section (422) is equal to the diameter of the filter membrane structure (5) after expansion; The filter membrane structure (5) comprises a filter membrane (51), an upper fixing ring (52), a lower fixing ring (53) and a connecting strip (54); the upper and lower ends of the filter membrane (51) are fixed in the upper fixing ring (52) and the lower fixing ring (53) respectively; the upper fixing ring (52) and the lower fixing ring (53) are connected via the connecting strip (54); and the lower fixing ring (53) is made of a magnetic material; The top of the support rod (61) is provided with an avoidance slope; The floating seat structure (62) comprises a support rod base (621), a water-permeable sleeve (622), a support plate (623), a pad (624) and a floating seat (625); the support rod base (621) is used to install the support rod (61); the support rod base (621) is fixedly mounted on the floating seat (625); the water-permeable sleeve (622) is provided with a water-permeable hole and the bottom is fixedly connected to the support rod base (621); the support plate (623) is sleeved on all the support rods (61) and fixed to the upper end of the water-permeable sleeve (622); the pad (624) is fixedly mounted on the partition (65); the partition (65) is fixedly mounted in the lower cylinder (12); and the bottom of the floating seat (625) is fixedly mounted on the fixed seat structure (7).

2. The membrane device for industrial water supply according to claim 1, characterized in that: A guide baffle (13) is provided between the upper cylinder (11) and the lower cylinder (12), a guide sleeve (14) is provided on the guide baffle (13), the motor part (41) is slidably arranged in the guide sleeve (14), and a water inlet and a water outlet are provided on the lower cylinder (12).

3. The membrane device for industrial water supply according to claim 1, characterized in that: The motor part (41) comprises a fixing sleeve (411) and a motor (412); the fixing sleeve (411) is fixedly connected to an output shaft of the hydraulic cylinder (3); and the motor (412) is fixedly installed in the fixing sleeve (411).

4. The membrane device for industrial water supply according to claim 1, characterized in that: A pressure pad (423) is provided at the bottom of the guide section (421), and a positioning groove (424) is provided on the guide section (421).

5. The membrane device for industrial water supply according to claim 1, characterized in that: The support rod base (621) is provided with a protruding portion and a recessed portion, the support rod (61) is located on the protruding portion, a magnetic attraction block (626) is provided at the innermost side of the recessed portion, and the pad (624) and the partition (65) are provided with structures that cooperate with the protruding portion and the recessed portion.

6. The membrane device for industrial water supply according to claim 1, characterized in that: The fixing seat structure (7) comprises a guide plate (71), a spring (72), and a cover tube (73); the guide plate (71) is slidably mounted in the cover tube (73); the spring is mounted in the cover tube (73) and has its top resting on the guide plate (71).

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