Ultrafiltration equipment for sewage treatment

Abstract

The utility model provides ultrafiltration equipment for sewage treatment, which comprises a first ultrafiltration box, a water inlet component and a second ultrafiltration box, the upper end of the first ultrafiltration box is connected with the left side of the lower end of the water inlet component, and the upper end of the first ultrafiltration box is connected with the right side of the lower end of the water inlet component. Compared with the prior art, the ultrafiltration membrane cleaning device has the following beneficial effects that the cleaning assembly and the cleaning assembly are arranged and are matched with each other, so that the inner wall of the box body can be automatically cleaned, the cleaning effect is better, the manual cleaning frequency is greatly reduced, the inner wall of the box body can be kept in a cleaner state, the filtration pressure of the ultrafiltration membrane assembly is favorably reduced, and the service life of the ultrafiltration membrane assembly is prolonged. By means of the arrangement of the flow guide part, purified water has a back-flushing effect on the ultrafiltration membrane assembly, impurities attached to the outer wall of the ultrafiltration membrane assembly are flushed away, the purpose of back-flushing cleaning is achieved, the frequency of regular cleaning of the ultrafiltration membrane assembly is greatly reduced, and the equipment operation cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to an ultrafiltration device for sewage treatment. Background Art

[0002] The existing ultrafiltration equipment for sewage treatment has some obvious shortcomings in terms of cleaning. First, the contamination and clogging of the ultrafiltration membrane is a common problem, which will lead to reduced filtration efficiency and poor treatment effect. The main reason for this defect is that the sewage contains a large amount of suspended matter, microorganisms and organic matter. These substances are easy to adhere to the membrane surface or pores during the ultrafiltration process, and gradually form a pollution layer. Secondly, the cleaning process is complicated and time-consuming, and frequent chemical cleaning and backwashing are required to effectively remove pollutants. This complexity is mainly due to the selectivity requirements of the ultrafiltration membrane material for the cleaning agent and the complexity of the operation during the cleaning process. In addition, the large amount of chemical cleaning agents used in the cleaning process not only increases the operating cost, but also may cause secondary pollution to the environment.

[0003] Conventional countermeasures include regular physical and chemical cleaning, combined with the use of appropriate cleaning agents to extend the service life of the ultrafiltration membrane as much as possible; optimizing the pretreatment process, such as removing suspended matter and large particles in sewage through sedimentation, flocculation and other means to reduce the burden on the ultrafiltration membrane; using more pollution-resistant membrane materials or improving membrane structure design to improve pollution resistance. However, these methods also have some disadvantages. Regular cleaning will increase equipment downtime and affect treatment efficiency; optimizing the pretreatment process requires additional equipment and process steps, increasing initial investment and operating costs; using more pollution-resistant membrane materials or improving membrane structure design requires more R&D resources and technical support, which may lead to increased equipment costs. Therefore, we hope to design an ultrafiltration device with a new structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an ultrafiltration device for sewage treatment to solve the problems raised in the above background technology.

[0005] The utility model is realized by the following technical scheme: an ultrafiltration device for sewage treatment, comprising: an ultrafiltration box 1, a water inlet component and an ultrafiltration box 2, wherein the upper end of the ultrafiltration box 1 is connected to the left side of the lower end of the water inlet component, and the upper end of the ultrafiltration box 2 is connected to the right side of the lower end of the water inlet component;

[0006] The first ultrafiltration box comprises a box body, an ultrafiltration membrane assembly, a cleaning assembly and a cleaning assembly, and a flow guide is fixed at the bottom of the box body;

[0007] A plurality of ultrafiltration membrane assemblies are fixed inside the box body through a flow guide, and a cleaning assembly is movably installed on the upper side of the box body;

[0008] A cleaning assembly is installed inside the upper end of the box, and the upper end surfaces of the plurality of ultrafiltration membrane assemblies are movably connected to the top of the box through a fixed plate.

[0009] The water inlet assembly comprises a main pipe, a branch pipe and a branch pipe. The lower end of the main pipe is fixedly connected to the middle of the branch pipe. A branch pipe is respectively fixed to the lower left and lower right sides of the branch pipe.

[0010] As a preferred embodiment, the cleaning component includes a ring tube, an internal tube, and a nozzle. The ring tube is fixed on the upper side of the outer wall of the box body. The ring tube is connected to an external water purification device through a water supply pipe. The setting of the cleaning component can be used in conjunction with the cleaning component to clean the inner wall of the box body, thereby reducing the frequency of manual cleaning.

[0011] As a preferred embodiment, a plurality of equally spaced inner tubes are arranged inside the ring tube, the inner ends of the inner tubes are located inside the upper end of the box body, and a nozzle is arranged at a sixty-degree inclination at the lower end of each inner tube.

[0012] As a preferred embodiment, the cleaning component includes an electric telescopic rod, a fixing frame and bristles, the lower end of the electric telescopic rod is fixed in the middle of the upper end of the box body, the lower end of the piston rod of the electric telescopic rod is fixedly connected to the middle of the fixing frame, the outer edge of the fixing frame is evenly provided with bristles, and the outer end of the bristles abuts against the inner wall of the box body.

[0013] As a preferred embodiment, the guide member includes a conduit, an inlet and outlet water pipe, a distribution plate and a backwash pipe. A plurality of conduits are arranged on the upper surface of the distribution plate. The number and distribution positions of the conduits match the number and distribution positions of the ultrafiltration membrane components. The upper end of the conduit extends to the interior of the lower end of the ultrafiltration membrane component. The setting of the guide member can backwash clean water into the interior of the ultrafiltration membrane component when necessary, thereby achieving the purpose of cleaning the ultrafiltration membrane component.

[0014] As a preferred embodiment, an inlet and outlet water pipe is arranged in the middle of the lower side of the distribution disk, a switch valve 1 is arranged at the lower side of the inlet and outlet water pipe, a recoil pipe is arranged on the side of the inlet and outlet water pipe, and a switch valve 2 is installed on the recoil pipe close to the inlet and outlet water pipe.

[0015] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting the cleaning component and the cleaning component, the user starts the electric telescopic rod at regular intervals to drive the fixing frame to move up and down inside the box, so that the bristles brush the inner wall of the box, and at the same time, high-pressure clean water is transported to the inside of the ring tube, and then the high-pressure clean water is transported to the corresponding inclined nozzles through a plurality of evenly distributed built-in tubes, and the nozzles spray high-pressure clean water to wash the inner wall of the box, and the two cooperate with each other to automatically clean the inner wall of the box, and the cleaning effect is good, which greatly reduces the frequency of manual cleaning, so that the inner wall of the box can be kept in a relatively clean state, which helps to reduce the filtration pressure of the ultrafiltration membrane component;

[0016] The setting of the guide piece, if the ultrafiltration membrane assembly needs to be cleaned, the corresponding ultrafiltration box 1 and ultrafiltration box 2 can be stopped, and then the switch valve 1 on the lower side of the inlet and outlet water pipes can be closed, and the switch valve 2 on the recoil pipe can be opened, and then high-pressure clean water is transported to the inside of the inlet and outlet water pipes through the recoil pipe. After the high-pressure clean water enters the inside of the distribution plate, it flows evenly to the inside of multiple ducts, and then moves to the inside of the ultrafiltration membrane assembly. When the water pressure inside the ultrafiltration membrane assembly is high, the clean water has a recoil effect on the ultrafiltration membrane assembly, and then flushes down the impurities attached to the outer wall of the ultrafiltration membrane assembly, so as to achieve the purpose of recoil cleaning, greatly reduce the frequency of regular cleaning of the ultrafiltration membrane assembly, and greatly reduce the cost of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an ultrafiltration device for sewage treatment.

[0019] Figure 2 The utility model is a schematic diagram of the internal structure of an ultrafiltration box of an ultrafiltration device for sewage treatment.

[0020] Figure 3 It is a schematic diagram of the internal top view structure of an ultrafiltration box of an ultrafiltration device for sewage treatment according to the utility model.

[0021] Figure 4 for Figure 2 A is an enlarged schematic diagram.

[0022] In the figure, 100-ultrafiltration box 1, 110-box, 120-ultrafiltration membrane assembly, 130-cleaning assembly, 131-loop pipe, 132-built-in pipe, 133-sprinkler, 140-fixed plate, 150-cleaning assembly, 151-electric telescopic rod, 152-fixed frame, 153-brush, 160-flow guide, 161-conduit, 162-inlet and outlet pipes, 163-distribution plate, 164-recoil pipe;

[0023] 200-water inlet assembly, 210-main pipe, 220-branch pipe, 230-branch pipe;

[0024] 300-Ultrafiltration box two. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: an ultrafiltration device for sewage treatment, comprising: an ultrafiltration box 100, a water inlet assembly 200 and an ultrafiltration box 2 300, wherein the upper end of the ultrafiltration box 100 is connected to the left side of the lower end of the water inlet assembly 200, and the upper end of the ultrafiltration box 2 300 is connected to the right side of the lower end of the water inlet assembly 200;

[0027] The ultrafiltration box 100 includes a box body 110, an ultrafiltration membrane assembly 120, a cleaning assembly 130 and a cleaning assembly 150. A flow guide 160 is fixed at the bottom of the box body 110;

[0028] A plurality of ultrafiltration membrane assemblies 120 are fixed inside the box 110 through a flow guide 160, and a cleaning assembly 150 is movably installed on the upper side of the box 110;

[0029] A cleaning assembly 130 is installed inside the upper end of the box 110, and the upper end surfaces of the plurality of ultrafiltration membrane assemblies 120 are movably connected to the top of the box 110 through a fixing plate 140.

[0030] The water inlet assembly 200 includes a main pipe 210 , a branch pipe 220 and a branch pipe 230 . The lower end of the main pipe 210 is fixedly connected to the middle of the branch pipe 220 . A branch pipe is fixed to the lower left and right sides of the branch pipe 220 .

[0031] See also Figures 1 to 4The cleaning component 130 includes a ring tube 131, a built-in tube 132, and a nozzle 133. The ring tube 131 is fixed on the upper side of the outer wall of the box body 110. The ring tube 131 is connected to an external water purification device through a water supply pipe. The setting of the cleaning component 130 can be combined with the cleaning component 150 to clean the inner wall of the box body 110, thereby reducing the frequency of manual cleaning.

[0032] A plurality of equally spaced inner tubes 132 are arranged inside the annular tube 131 , and the inner ends of the inner tubes 132 are located inside the upper end of the box body 110 . A nozzle 133 is arranged at a 60-degree inclination at the lower end of each inner tube 132 .

[0033] The cleaning assembly 150 includes an electric telescopic rod 151, a fixed frame 152 and bristles 153. The lower end of the electric telescopic rod 151 is fixed in the middle of the upper end of the box body 110. The lower end of the piston rod of the electric telescopic rod 151 is fixedly connected to the middle of the fixed frame 152. The outer edge of the fixed frame 152 is evenly provided with bristles 153, and the outer end of the bristles 153 abuts against the inner wall of the box body 110.

[0034] As the first embodiment of the utility model, at regular intervals, the user closes the ultrafiltration box 100, and the ultrafiltration box 2 300 can work normally (the structure of the ultrafiltration box 2 300 is the same as that of the ultrafiltration box 100), without delaying normal sewage treatment, and then the user starts the electric telescopic rod 151 to drive the fixing frame 152 to move up and down inside the box body 110, so that the bristles 153 brush the inner wall of the box body 110. At the same time, high-pressure clean water is transported to the inside of the annular tube 131, and then the high-pressure clean water is transported to the corresponding inclined nozzles 133 through a plurality of evenly distributed built-in tubes 132. The nozzles 133 spray high-pressure clean water to rinse the inner wall of the box body 110. The two cooperate with each other to automatically clean the inner wall of the box body 110 with good cleaning effect, which greatly reduces the frequency of manual cleaning, so that the inner wall of the box body 110 can be kept in a relatively clean state, which helps to reduce the filtration pressure of the ultrafiltration membrane assembly 120.

[0035] See also Figure 1 to Figure 2 The guide member 160 includes a conduit 161, an inlet and outlet water pipe 162, a distribution plate 163 and a backwash pipe 164. A plurality of conduits 161 are arranged on the upper surface of the distribution plate 163. The number and distribution positions of the conduits 161 match the number and distribution positions of the ultrafiltration membrane assembly 120. The upper end of the conduit 161 extends to the interior of the lower end of the ultrafiltration membrane assembly 120. The setting of the guide member 160 can backwash clean water into the interior of the ultrafiltration membrane assembly 120 when necessary, thereby achieving the purpose of cleaning the ultrafiltration membrane assembly 120.

[0036] An inlet and outlet water pipe 162 is arranged in the middle of the lower side of the distribution plate 163, a switch valve 1 is arranged at the lower side of the inlet and outlet water pipe 162, a backwash pipe 164 is arranged on the side of the inlet and outlet water pipe 162, and a switch valve 2 is installed on the side of the backwash pipe 164 close to the inlet and outlet water pipe 162.

[0037] As the second embodiment of the utility model, based on the above-mentioned first embodiment, in actual use, if the ultrafiltration membrane assembly 120 needs to be cleaned, the corresponding ultrafiltration box 100 and ultrafiltration box 2 300 can be stopped, and then the switch valve 1 on the lower side of the inlet and outlet water pipe 162 is closed, and the switch valve 2 on the backwash pipe 164 is opened, and then the high-pressure clean water is transported to the inside of the inlet and outlet water pipe 162 through the backwash pipe 164. After the high-pressure clean water enters the inside of the distribution plate 163, it flows evenly to the inside of multiple conduits 161, and then moves to the inside of the ultrafiltration membrane assembly 120. When the water pressure inside the ultrafiltration membrane assembly 120 is relatively high, the clean water produces a backwash effect on the ultrafiltration membrane assembly 120, and then flushes away the impurities attached to the outer wall of the ultrafiltration membrane assembly 120, thereby achieving the purpose of backwash cleaning, greatly reducing the frequency of regular cleaning of the ultrafiltration membrane assembly 120, and greatly reducing the cost of equipment operation.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrafiltration device for sewage treatment, comprising: Ultrafiltration box one (100), water inlet assembly (200) and ultrafiltration box two (300), characterized in that the upper end of the ultrafiltration box one (100) is connected to the left side of the lower end of the water inlet assembly (200), and the upper end of the ultrafiltration box two (300) is connected to the right side of the lower end of the water inlet assembly (200); The ultrafiltration box (100) comprises a box body (110), an ultrafiltration membrane assembly (120), a cleaning assembly (130) and a cleaning assembly (150); a flow guide (160) is fixed to the bottom of the box body (110); A plurality of ultrafiltration membrane assemblies (120) are fixed inside the box (110) via a flow guide (160), and a cleaning assembly (150) is movably mounted on the upper side of the box (110); A cleaning assembly (130) is installed inside the upper end of the box (110), and the upper end surfaces of the plurality of ultrafiltration membrane assemblies (120) are movably connected to the top of the box (110) via a fixing plate (140). The water inlet assembly (200) comprises a main pipe (210), a branch pipe (220) and a branch pipe (230); the lower end of the main pipe (210) is fixedly connected to the middle of the branch pipe (220); and a branch pipe is respectively fixed to the lower left and lower right sides of the branch pipe (220).

2. The ultrafiltration device for sewage treatment according to claim 1, characterized in that: The cleaning assembly (130) comprises a ring tube (131), an internal tube (132), and a nozzle (133); the ring tube (131) is fixed to the upper side of the outer wall of the box body (110); and the ring tube (131) is connected to an external water purification device via a water supply pipe.

3. The ultrafiltration device for sewage treatment according to claim 2, characterized in that: A plurality of equally spaced internal tubes (132) are arranged inside the annular tube (131), the internal ends of the internal tubes (132) being located inside the upper end of the box body (110), and a nozzle (133) is arranged at the lower end of each internal tube (132) at an angle of sixty degrees.

4. The ultrafiltration device for sewage treatment according to claim 1, characterized in that: The cleaning assembly (150) comprises an electric telescopic rod (151), a fixing frame (152) and bristles (153); the lower end of the electric telescopic rod (151) is fixed to the middle of the upper end of the box body (110); the lower end of the piston rod of the electric telescopic rod (151) is fixedly connected to the middle of the fixing frame (152); the bristles (153) are evenly arranged on the outer edge of the fixing frame (152); and the outer ends of the bristles (153) abut against the inner wall of the box body (110).

5. The ultrafiltration device for sewage treatment according to claim 1, characterized in that: The flow guide (160) comprises a conduit (161), an inlet and outlet water pipe (162), a distribution plate (163) and a backwash pipe (164); a plurality of conduits (161) are arranged on the upper surface of the distribution plate (163); the number and distribution positions of the conduits (161) match the number and distribution positions of the ultrafiltration membrane assemblies (120); the upper end of the conduit (161) extends to the interior of the lower end of the ultrafiltration membrane assembly (120).

6. The ultrafiltration device for sewage treatment according to claim 5, characterized in that: An inlet and outlet water pipe (162) is arranged in the middle of the lower side of the distribution plate (163), a switch valve 1 is arranged on the lower side of the inlet and outlet water pipe (162), a backwash pipe (164) is arranged on the side of the inlet and outlet water pipe (162), and a switch valve 2 is installed on the side of the backwash pipe (164) close to the inlet and outlet water pipe (162).

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