Reclaimed water recycling device adopting double-membrane method

Abstract

The utility model relates to the technical field of reclaimed water recycling, and discloses a double-membrane reclaimed water recycling device which comprises a main body frame, sand filter equipment and carbon filter equipment, the sand filter equipment and the carbon filter equipment are fixedly arranged at the front end of the main body frame, and a first sealing cover is rotationally arranged at the top of the sand filter equipment through threads; a second sealing cover is rotationally mounted at the top of the carbon filter equipment through threads, and a central pipe is movably mounted in the sand filter equipment and the carbon filter equipment. Wastewater is added into the sand filter equipment through the central pipe and the water distributor, sand washing is firstly performed on the wastewater through quartz sand, large-particle impurities in the wastewater are discharged from the wastewater, then the washed wastewater is added into the carbon filter equipment through the central pipe and the water distributor, and the wastewater is filtered by activated carbon, so that the wastewater is filtered by the activated carbon. Free substances, microorganisms and part of heavy metal ions in water can be effectively removed, and the chromaticity of the water can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reclaimed water reuse, in particular to a double-membrane reclaimed water reuse device. Background Art

[0002] Recycled water reuse is a non-drinking water technology that treats domestic sewage or industrial wastewater to meet certain water quality standards and then reuses it within a certain range. This technology aims to save water resources and reduce pollution to the environment. Recycled water reuse technology includes a variety of treatment processes, such as biological treatment, physical and chemical treatment, and membrane treatment. Among them, double membrane treatment is more widely used. Double membrane treatment is a method of ultrafiltration and reverse osmosis treatment. However, the existing domestic sewage contains a large amount of impurities. When ultrafiltration and reverse osmosis purification are carried out, the purification efficiency is reduced due to the pollution of impurities. At the same time, it is easy to greatly reduce the filtration effect of ultrafiltration membrane and reverse osmosis membrane, thereby reducing the service life of the double membrane.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a double-membrane method of reclaimed water recycling device, which adds wastewater to the interior of a sand filter device through a central tube and a water distributor, first sand-washes the wastewater with quartz sand, discharges large particles of impurities in the wastewater, and then adds the washed wastewater to a carbon filter device through the central tube and the water distributor. After being filtered with activated carbon, free matter, microorganisms, and some heavy metal ions in the water can be effectively removed, and the chromaticity of the water can be significantly reduced, thereby avoiding that the impurities in the wastewater greatly reduce the filtering effect of the ultrafiltration membrane and the reverse osmosis membrane, and at the same time prolongs the service life of the device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A double-membrane method water reuse device comprises a main frame, a sand filter device and a carbon filter device, wherein the sand filter device and the carbon filter device are fixedly installed at the front end of the main frame, a first sealing cover is installed on the top of the sand filter device through threaded rotation, and a second sealing cover is installed on the top of the carbon filter device through threaded rotation. A central pipe is movably installed inside the sand filter device and the carbon filter device, a water distributor is fixedly installed at the bottom of the central pipe, and the central pipe extends to the inside of the first sealing cover and the second sealing cover respectively, a sealing bottom cover is installed at the opening of the bottom of the sand filter device and the carbon filter device through threaded rotation, an annular groove is provided on the inner wall of the bottom opening of the sand filter device and the carbon filter device, and a sealing ring is movably installed inside the annular groove.

[0007] Preferably, a reverse osmosis treatment device is evenly installed at the rear end of the top of the main frame, and an ultrafiltration treatment device is evenly installed at the front end of the top of the main frame. One side of the reverse osmosis treatment device and one side of the ultrafiltration treatment device are respectively fixedly connected with longitudinal water pipes, and the other side of the reverse osmosis treatment device and the ultrafiltration treatment device are movably connected with a transverse water pipe, and the transverse water pipe is respectively fixedly connected with the other side of the reverse osmosis treatment device and the ultrafiltration treatment device with a first flange.

[0008] Preferably, a water suction pump is movably installed on one side of the carbon filter device, a water suction pipe is fixedly installed on the input end of the water suction pump, the bottom of the front end of the longitudinal water pipe is fixedly connected to the output end of the water suction pump, the top of the first sealing cover is fixedly connected to a first connecting pipe, the top of the first connecting pipe is fixedly installed with a first valve head, the top of the carbon filter device is fixedly connected to a second connecting pipe, the top of the second connecting pipe is fixedly installed with a second valve head, and a second flange is fixedly connected between the water suction pipe and the second connecting pipe.

[0009] Preferably, a threaded ring is fixedly mounted on the outer side of one end of the first connecting tube, and a movable knot is movably mounted on the outer side of the other end of the second connecting tube, and the threaded ring and the movable knot are connected by threads.

[0010] Preferably, a support frame is evenly fixedly installed on the top of the main frame, and ring buckles are movably installed on the top of the reverse osmosis treatment equipment and the ultrafiltration treatment equipment. Bolts are penetrated and connected at the front and rear ends of the support frame and the top of the ring buckles, and the bolts penetrate the main frame and are fixedly connected by nuts.

[0011] Preferably, a pressure gauge is fixedly mounted on the outer side of the other end of the first connecting pipe, and a rubber pad is fixedly mounted on the top of the support frame, and the rubber pad is tightly fitted with the reverse osmosis treatment equipment and the ultrafiltration treatment equipment respectively.

[0012] Compared with the prior art, the utility model provides a double membrane water recycling device, which has the following beneficial effects:

[0013] 1. The utility model adds wastewater to the interior of the sand filter device through a central tube and a water distributor, first sand washes the wastewater with quartz sand, discharges large particle impurities in the wastewater, and then adds the washed wastewater to the carbon filter device through the central tube and the water distributor. After activated carbon filtration, free substances, microorganisms, and some heavy metal ions in the water can be effectively removed, and the chromaticity of the water can be significantly reduced, thereby avoiding that the impurities in the wastewater greatly reduce the filtering effect of the ultrafiltration membrane and the reverse osmosis membrane, and at the same time prolonging the service life of the device;

[0014] 2. The utility model opens the sealed bottom cover so that the openings at the bottom of the sand filter device and the carbon filter device are opened, which makes it convenient for the staff to clean the inside of the sand filter device and the carbon filter device, avoids the replacement and cleaning of the activated carbon and quartz sand inside the sand filter device and the carbon filter device through the water inlet, and saves the time and energy of the staff. When the sealed bottom cover is closed, it is sealed by the sealing ring, which avoids the leakage of the sand filter device and the carbon filter device during water washing and filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the sand filter device of the utility model;

[0018] Figure 4 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 5 It is a side structural schematic diagram of the support frame of the utility model.

[0020] In the figure: 1. main frame; 101. reverse osmosis treatment equipment; 102. ultrafiltration treatment equipment; 103. longitudinal water pipe; 104. transverse water pipe; 105. first flange; 106. suction pump; 107. suction pipe; 2. sand filter equipment; 201. first sealing cover; 202. first connecting pipe; 203. first valve head; 204. center pipe; 205. water distributor; 206. annular groove; 207. sealing bottom cover; 208. sealing ring; 209. threaded ring; 210. pressure gauge; 3. carbon filter equipment; 301. second sealing cover; 302. second connecting pipe; 303. second valve head; 304. movable knot; 305. second flange; 4. support frame; 401. buckle; 402. bolt; 403. rubber pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a double membrane method water reuse device.

[0023] See also Figure 1-Figure 5 A double-membrane method water reuse device comprises a main frame 1, a sand filter device 2 and a carbon filter device 3, the sand filter device 2 and the carbon filter device 3 are fixedly installed at the front end of the main frame 1, a first sealing cover 201 is installed on the top of the sand filter device 2 by thread rotation, a second sealing cover 301 is installed on the top of the carbon filter device 3 by thread rotation, a central pipe 204 is movably installed inside the sand filter device 2 and the carbon filter device 3, a water distributor 205 is fixedly installed at the bottom of the central pipe 204, the central pipe 204 extends to the inside of the first sealing cover 201 and the second sealing cover 301 respectively, a sealing bottom cover 207 is installed at the opening of the bottom of the sand filter device 2 and the carbon filter device 3 by thread rotation, an annular groove 206 is opened on the inner wall of the bottom opening of the sand filter device 2 and the carbon filter device 3, and a sealing ring 208 is movably installed inside the annular groove 206.

[0024] Specifically, the wastewater is added to the interior of the sand filter device 2 through the central tube 204 and the water distributor 205, and the wastewater is first sand-washed with quartz sand to discharge the large particles of impurities in the wastewater. Then, the washed wastewater is added to the carbon filter device 3 through the central tube 204 and the water distributor 205. After the activated carbon filtration, the free matter, microorganisms, and some heavy metal ions in the water can be effectively removed, and the chromaticity of the water can be significantly reduced, so as to avoid the impurities in the wastewater greatly reducing the filtering effect of the ultrafiltration membrane and the reverse osmosis membrane, and at the same time improve the device. In order to extend the service life of the filter, the sealing bottom cover 207 is opened, so that the openings at the bottom of the sand filter device 2 and the carbon filter device 3 are opened, which is convenient for the staff to clean the inside of the sand filter device 2 and the carbon filter device 3, avoiding the replacement and cleaning of the activated carbon and quartz sand inside the sand filter device 2 and the carbon filter device 3 through the water inlet, saving the time and energy of the staff. When the sealing bottom cover 207 is closed, it is sealed by the sealing ring 208, which avoids the leakage of the sand filter device 2 and the carbon filter device 3 during water washing and filtration.

[0025] Further, the rear end of the top of the main frame 1 is evenly installed with a reverse osmosis treatment device 101, and the front end of the top of the main frame 1 is evenly installed with an ultrafiltration treatment device 102. One side of the reverse osmosis treatment device 101 and one side of the ultrafiltration treatment device 102 are respectively fixedly connected with a longitudinal water pipe 103, and the other side of the reverse osmosis treatment device 101 and the ultrafiltration treatment device 102 is movably connected with a transverse water pipe 104. The transverse water pipe 104 is respectively fixedly connected with the other side of the reverse osmosis treatment device 101 and the ultrafiltration treatment device 102 with a first flange 105;

[0026] Specifically, the treated wastewater is input into the reverse osmosis treatment device 101 through the longitudinal water pipe 103, so that the wastewater is first subjected to ultrafiltration treatment, and then the wastewater is input into the ultrafiltration treatment device 102 through the transverse water pipe 104 to perform reverse osmosis purification treatment on the wastewater, so that the reclaimed water can be recycled and reused, thereby saving water resources;

[0027] Further, a water suction pump 106 is movably installed on one side of the carbon filter device 3, a water suction pipe 107 is fixedly installed on the input end of the water suction pump 106, the bottom of the front longitudinal water delivery pipe 103 is fixedly connected to the output end of the water suction pump 106, the top of the first sealing cover 201 is fixedly connected to the first connecting pipe 202, the top of the first connecting pipe 202 is fixedly installed with a first valve head 203, the top of the carbon filter device 3 is fixedly connected to the second connecting pipe 302, the top of the second connecting pipe 302 is fixedly installed with a second valve head 303, and a second flange 305 is fixedly connected between the water suction pipe 107 and the second connecting pipe 302;

[0028] Furthermore, a threaded ring 209 is fixedly installed on the outer side of one end of the first connecting tube 202, and a movable knot 304 is movably installed on the outer side of the other end of the second connecting tube 302, and the threaded ring 209 and the movable knot 304 are connected by threads;

[0029] Specifically, the threaded ring 209 is connected to the movable knot 304 by threads, so that the first connecting pipe 202 and the second connecting pipe 302 are fixedly connected, which is convenient for the transportation of wastewater pretreatment, and the input and output of the sand filter device 2 and the carbon filter device 3 are controlled by the first valve head 203 and the second valve head 303, which is convenient for the pretreatment of wastewater;

[0030] Further, a support frame 4 is evenly fixedly installed on the top of the main frame 1, and a buckle 401 is movably installed on the top of the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102. The front and rear ends of the support frame 4 and the top of the buckle 401 are penetrated and connected with bolts 402, and the bolts 402 penetrate the main frame 1 and are fixedly connected by nuts;

[0031] Furthermore, a barometer 210 is fixedly installed on the outer side of the other end of the first connecting pipe 202, and a rubber pad 403 is fixedly installed on the top of the support frame 4, and the rubber pad 403 is tightly fitted with the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 respectively;

[0032] Specifically, the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 are evenly placed on the top of the support frame 4, and then fastened to the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 through the ring buckle 401, and the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 are fixed by the bolt 402. At this time, the rubber pad 403 and the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 are tightly fitted, so that the reverse osmosis treatment equipment 101 and the ultrafiltration treatment equipment 102 are fixed more firmly, and the internal air pressure of the water pipe of the sand filter device 2 and the carbon filter device 3 is detected by the pressure gauge 210, so as to avoid the influence of excessive water pressure on the wastewater pretreatment inside the sand filter device 2 and the carbon filter device 3.

[0033] Working principle: First, the wastewater is added to the interior of the sand filter device 2 through the first connecting pipe 202, so that the quartz sand inside the sand filter device 2 washes the wastewater to remove large particles of impurities in the wastewater, and then the first filtered wastewater is sucked into the interior of the carbon filter device 3 through the second connecting pipe 302, and the wastewater is filtered for a second time by activated carbon to remove free matter, microorganisms, and some heavy metal ions in the wastewater. Then, the pretreated wastewater is sucked into the interior of the ultrafiltration treatment equipment 102 through the horizontal water pipe 104 by the water suction pump 106 for ultrafiltration treatment, and then input into the interior of the reverse osmosis treatment equipment 101 through the horizontal water pipe 104 for reverse osmosis treatment, thereby improving the purification efficiency of the wastewater.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double membrane method water recycling device, comprising a main frame (1), a sand filter device (2) and a carbon filter device (3), wherein the sand filter device (2) and the carbon filter device (3) are fixedly installed at the front end of the main frame (1), characterized in that: A first sealing cover (201) is installed on the top of the sand filter device (2) by means of a threaded rotation, and a second sealing cover (301) is installed on the top of the carbon filter device (3) by means of a threaded rotation. A central tube (204) is movably installed inside the sand filter device (2) and the carbon filter device (3). A water distributor (205) is fixedly installed at the bottom of the central tube (204). The central tube (204) extends to the inside of the first sealing cover (201) and the second sealing cover (301), respectively. A sealing bottom cover (207) is installed at the opening of the bottom of the sand filter device (2) and the carbon filter device (3) by means of a threaded rotation. An annular groove (206) is provided on the inner wall of the bottom opening of the sand filter device (2) and the carbon filter device (3), and a sealing ring (208) is movably installed inside the annular groove (206).

2. A double membrane water recycling device according to claim 1, characterized in that: A reverse osmosis treatment device (101) is evenly installed at the rear end of the top of the main frame (1), and an ultrafiltration treatment device (102) is evenly installed at the front end of the top of the main frame (1). One side of the reverse osmosis treatment device (101) and one side of the ultrafiltration treatment device (102) are respectively fixedly connected with a longitudinal water pipe (103). A transverse water pipe (104) is movably connected between the reverse osmosis treatment device (101) and the other side of the ultrafiltration treatment device (102). The transverse water pipe (104) is respectively fixedly connected with a first flange (105) to the other side of the reverse osmosis treatment device (101) and the ultrafiltration treatment device (102).

3. A double membrane water recycling device according to claim 2, characterized in that: A water suction pump (106) is movably mounted on one side of the carbon filter device (3); a water suction pipe (107) is fixedly mounted on the input end of the water suction pump (106); the bottom of the front longitudinal water delivery pipe (103) is fixedly connected to the output end of the water suction pump (106); the top of the first sealing cover (201) is fixedly connected to a first connecting pipe (202); the top of the first connecting pipe (202) is fixedly mounted to a first valve head (203); the top of the carbon filter device (3) is fixedly connected to a second connecting pipe (302); the top of the second connecting pipe (302) is fixedly mounted to a second valve head (303); and a second flange (305) is fixedly connected between the water suction pipe (107) and the second connecting pipe (302).

4. A double membrane water recycling device according to claim 3, characterized in that: A threaded ring (209) is fixedly mounted on the outer side of one end of the first connecting tube (202), and a movable knot (304) is movably mounted on the outer side of the other end of the second connecting tube (302), and the threaded ring (209) and the movable knot (304) are connected via threads.

5. A double membrane water recycling device according to claim 3, characterized in that: A support frame (4) is evenly fixedly installed on the top of the main frame (1); a ring buckle (401) is movably installed on the top of the reverse osmosis treatment equipment (101) and the ultrafiltration treatment equipment (102); bolts (402) are connected through the front and rear ends of the tops of the support frame (4) and the ring buckle (401); and the bolts (402) penetrate the main frame (1) and are fixedly connected via nuts.

6. A double membrane water recycling device according to claim 5, characterized in that: A pressure gauge (210) is fixedly mounted on the outer side of the other end of the first connecting pipe (202), and a rubber pad (403) is fixedly mounted on the top of the support frame (4), and the rubber pad (403) is tightly fitted to the reverse osmosis treatment equipment (101) and the ultrafiltration treatment equipment (102), respectively.

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