CN211367059U

CN211367059U - Filtering device and filtering system

Info

Publication number: CN211367059U
Application number: CN201922266082.5U
Authority: CN
Inventors: 张海涛; 齐奇; 罗征; 饶斌; 谢涛
Original assignee: Beijing Tdr Environmental Protection Technology Co ltd
Current assignee: Lu Xin Tian Di Ren Environmental Technology (Anhui) Group Co.,Ltd.
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-28
Anticipated expiration: 2029-12-17

Abstract

The embodiment of the utility model provides a filter equipment and filtration system. The filtering device comprises a shell, a membrane element, a water outlet pipe and a sewage discharge pipe. The membrane element is arranged in the shell, a gap between the membrane element and the shell is used as a water purification space, the membrane element comprises a water inlet, the water inlet penetrates through the shell, and the water inlet is used for enabling sewage to enter the membrane element; the water outlet pipe is arranged on the side surface of the shell and is communicated with the water purification space between the shell and the membrane element; one end of the sewage discharge pipe penetrates through the shell to be communicated with the membrane element, the circulating pool is communicated with a water inlet of the membrane element, the circulating pool is communicated with the other end of the sewage discharge pipe, and the circulating pool is used for forming cross flow filtration in the membrane element. The utility model discloses a membrane element filters, has improved filter fineness, will have silt and solid matter to filter moreover and filter in discharging the membrane element again to constitute the cross-flow filtration process, effectively reduced the phenomenon of membrane element surface siltation, improved filtration efficiency.

Description

Filtering device and filtering system

Technical Field

The utility model relates to a sewage purification technology field especially relates to a filter equipment and filtration system.

Background

Human need carry high concentration SS (suspended solid) waste water to each processing factory in production and life, have different kinds of suspended solids and particulate matter to flow along with rivers in the aquatic, when adopting pipeline water delivery, the pipeline can be blockked up to suspended solid or particulate matter in the rivers, reduces the area of overflowing of pipeline, can block up the pipeline completely when serious. In order to ensure the safety of pipeline water delivery, a filter is generally arranged on the pipeline to intercept dirt in the pipeline.

According to investigation, all the current filters are basically cleaning assembly type filters as shown in fig. 1, and the filters comprise a filter housing 11, a filter screen 12 arranged in the filter housing 11, a filter cleaning assembly 17 for cleaning the filter screen 12, and a motor 16 for driving the filter cleaning assembly 17 to rotate; filter casing 11 including drainage export 14, sewage import 13 and blowdown export 15, drainage export 14 and filter casing 11 and filter screen 12 between the clearance space intercommunication, filter casing 11's sewage import 13 and filter screen 12 intercommunication to make sewage directly get into filter screen 12 along sewage import 13, blowdown export 15 and filter screen 12 intercommunication, blowdown export 15 is arranged in the silt and the suspended solid that discharge filtration in-process produced. However, the filtration precision of the filter 12 of the filter is low, so that the sewage treatment can not meet the production requirement, and meanwhile, if the filter 12 is replaced by a membrane element (a separation core consisting of a separation membrane) in order to improve the precision, the filtration process of the membrane element and the sewage is dead-end filtration (also called full-volume filtration), namely, raw water is placed at the upstream of the membrane, water and particles smaller than the membrane pores penetrate through the membrane under the pushing of pressure difference, and particles larger than the membrane pores are intercepted by the membrane), so that a large amount of sludge and solid suspended matters are deposited on the surface of the membrane element, a filtration cleaning assembly 17 is frequently used for cleaning and sewage discharge by using the sewage discharge outlet 15, the filtration efficiency is reduced, the service life of the membrane element is prolonged, and secondary water pollution is caused by frequently opening the sewage discharge outlet.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a filter equipment and filtration system to solve one or more technical problem among the prior art.

In a first aspect, an embodiment of the present invention provides a filtering apparatus, including:

a housing;

the membrane element is arranged in the shell, a gap between the membrane element and the shell serves as a water purification space, the membrane element comprises a water inlet, the water inlet penetrates through the shell, and the water inlet is used for directly pumping sewage into the membrane element;

the water outlet pipe is arranged on the side face of the shell and is communicated with the water purification space between the shell and the membrane element;

one end of the sewage discharge pipe penetrates through the shell and is communicated with the membrane element;

and the circulating tank is communicated with the water inlet of the membrane element, the circulating tank is communicated with the other end of the sewage discharge pipe, and the circulating tank is used for forming cross flow filtration in the membrane element (the cross flow filtration is that blanking liquid is pushed by a pump to flow parallel to the membrane surface, and different from dead-end filtration, shearing force generated when the feed liquid flows through the membrane surface takes away particles retained on the membrane surface, so that a pollution layer is kept at a relatively thin level).

In one embodiment, the filter device further comprises:

a motor disposed on the housing, a drive shaft of the motor extending axially from the top of the housing into the membrane element;

the cleaning assembly is arranged in the membrane element, is in smooth contact with the membrane element, is in transmission connection with the transmission shaft of the motor, is used for controlling the cleaning assembly to rotate along the inner wall of the membrane element, and is used for removing deposits on the inner surface of the membrane element.

In one embodiment, the membrane element has a base that projects outwardly along an axis, wherein any cross section of the base of the membrane element is angled between 30 ° and 45 ° from a horizontal plane.

In one embodiment, the membrane element has a water inlet with a diameter larger than the diameter of the waste pipe.

In one embodiment, the circulation tank comprises a sewage draining outlet and a controller, wherein the controller is used for simultaneously controlling sewage in the circulation tank to be drained into the water inlet, the circulation tank to extract the sewage in the membrane element and the sewage draining outlet to drain sludge in the circulation tank.

In one embodiment, the membrane element comprises a sintered filter membrane.

In a second aspect, an embodiment of the present invention provides a filtration system, which comprises a plurality of filtration devices connected in parallel as described in any one of the above embodiments, wherein the filtration devices are provided with a plurality of water inlets, water outlets and sewage pipes.

In a third aspect, an embodiment of the present invention provides a filtration system, including a plurality of filtration devices as described in any of the above embodiments, in parallel, wherein the water inlets, the water outlet pipes, and the sewage pipes of the plurality of filtration devices are communicated;

the motor further comprises a main transmission shaft, a plurality of transmission shafts are arranged on the main transmission shaft, each transmission shaft correspondingly extends into the membrane element of one filtering device and is connected with the cleaning assembly, and the main transmission shaft is used for driving each transmission shaft to rotate when the motor rotates.

The utility model discloses a membrane element filters, has improved filter fineness, will have silt and solid matter to filter moreover and filter in discharging the membrane element again to constitute the cross-flow filtration process, effectively reduced the phenomenon of membrane element surface siltation, improved filtration efficiency.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are not to be considered limiting of its scope.

Fig. 1 shows a schematic diagram of a prior art filter device.

Fig. 2 shows a schematic view of the overall structure of the filtering device in the embodiment of the present invention.

Fig. 3 shows a schematic diagram of the overall structure of the filtering system in the embodiment of the present invention.

The drawing of the background art (fig. 1) is labeled:

11. a filter housing; 12. A filter screen; 13. A sewage inlet;

14. a filtered water outlet; 15. A blowdown outlet; 16. An electric motor;

17. and (4) a filter screen.

The drawings (fig. 2 and 3) of the present invention are labeled:

110. a housing; 120. A membrane element; 130. A water inlet;

131. a circulation pump; 132. A filter; 140. A water outlet pipe;

150. a blow-off pipe; 151. A blowoff valve; 160. A circulation tank;

161. a sewage draining outlet; 162. A sewage inlet; 170. A motor;

171. a drive shaft; 172. A main drive shaft; 180. The assembly is cleaned.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Fig. 2 shows a filtering apparatus provided according to an embodiment of the present invention. Referring to fig. 2, the filtering apparatus includes a housing 110, a membrane element 120, an outlet pipe 140, and a soil discharge pipe 150.

The membrane element 120 is disposed inside the housing 110, the space enclosed by the membrane element 120 is used for holding the sewage, and generally for maintaining the integrity of the membrane element 120, the filtering surface of the membrane element 120 is arc-shaped, that is, the membrane element 120 is spherical or cylindrical inside the housing 110, the gap between the membrane element 120 and the housing 110 is used as a water purifying space, that is, the liquid passing through the membrane element 120 enters the water purifying space, the membrane element 120 includes a water inlet 130, the water inlet 130 penetrates through the housing 110, the water inlet 130 is used for directly pumping the sewage into the membrane element 120, and then the process of the sewage passing through the membrane element 120 and entering the water purifying.

In one embodiment, membrane element 120 is a sintered filter membrane.

The outlet pipe 140 is disposed at a side of the housing 110, and the outlet pipe 140 is communicated with the purified water space between the housing 110 and the membrane element 120, so that the filtered water flows out of the housing 110 through the outlet pipe 140.

One end of the waste pipe 150 extends through the housing 110 to communicate with the membrane element 120. typically, in order to completely remove all of the sludge in the membrane element 120, a waste valve 151 is also provided at the bottom of the filtration apparatus.

The circulation tank 160 is communicated with the water inlet 130 of the membrane element 120, and the circulation tank 160 is communicated with the other end of the sewage discharge pipe 150, so that sludge and solid suspended matters remaining after the sewage in the membrane element 120 is filtered can continuously circulate into the circulation tank 160, and the circulation tank 160 pumps the sewage in the tank into the water inlet 130 again through the water pump, so that the sewage amount in the membrane element 120 is supplemented, the water in the membrane element 120 is in a flowing state, the membrane element 120 can be subjected to continuous cross-flow filtration, and the deposition of solid matters on the surface of the membrane element 120 is effectively reduced.

In one embodiment, a circulation pump 131 and a filter 132 are sequentially arranged between the circulation tank 160 and the water inlet 130 of the membrane element 120, the circulation pump 131 is used for pumping the circulation tank 160 into the water inlet 130 of the membrane element 120, and the filter 132 is used for filtering suspended matters in water.

In the embodiment, the membrane element 120 is adopted for filtration, so that the filtration precision is improved, and sludge and solid matters in the filtration are discharged into the membrane element 120 again for filtration, so that a cross flow filtration process is formed, the phenomenon of surface siltation of the membrane element 120 is effectively reduced, and the filtration efficiency is improved.

In one embodiment, the filtration apparatus further comprises a motor 170 and a cleaning assembly 180.

The motor 170 is disposed on the housing 110, and a drive shaft 171 of the motor 170 extends axially from the top of the housing 110 into the membrane element 120, the drive shaft 171 being rotatably connected to a contact location of the housing 110.

The cleaning component 180 is arranged in the membrane element 120, the cleaning component 180 is in smooth contact with the membrane element 120, the cleaning component 180 is in transmission connection with a transmission shaft 171 of the motor 170, the motor 170 is used for controlling the cleaning component 180 to rotate along the inner wall of the membrane element 120, and the cleaning component 180 is used for removing deposits on the inner surface of the membrane element 120.

In one embodiment, referring to fig. 2, the cleaning assembly 180 is in a "door" shape, two ends of the cleaning assembly 180 are in sliding contact with the inner wall of the membrane element 120, respectively, the middle point of the upper end of the cleaning assembly 180 is connected with one end of the transmission shaft 171, and the cleaning assembly 180 can remove the inner wall of the membrane element 120 once when rotating 180 degrees, thereby saving the rotation period.

In one embodiment, the bottom of the membrane element 120 is convex along the axis, wherein any cross section of the bottom of the membrane element 120 is at an angle of between 30 ° and 45 ° with respect to the horizontal plane, such that the bottom of the membrane element 120 presents a slope-like structure that facilitates the circulation and filtration of sludge through the waste pipe 150 without clogging the membrane element 120.

In one embodiment, the diameter of the inlet 130 of the membrane element 120 is larger than the diameter of the waste pipe 150, so that the inlet water is larger than the waste water flowing out of the waste pipe 150, thereby forming a certain pressure and increasing the filtering speed. In one embodiment, the membrane element 120 has a ratio of the diameter of the inlet 130 to the diameter of the waste pipe 150 of 10: 9, namely, ensuring that the water quantity ratio of the water pumped into the water inlet 130 to the filtered water is 10: 1.

in one embodiment, the circulation tank 160 includes a wastewater inlet 162, a wastewater outlet 161, and a controller for simultaneously controlling the wastewater in the circulation tank 160 to be discharged into the water inlet 130, the wastewater in the membrane element 120 to be extracted from the circulation tank 160 through the wastewater outlet 150, and the sludge in the circulation tank 160 to be discharged through the wastewater outlet 161, thereby accelerating the filtering process, and the wastewater inlet 162 is used for supplementing the water in the circulation tank.

In a second aspect, this embodiment provides a filtering system, as shown in fig. 3, the filtering system comprises a plurality of filtering devices connected in parallel as in the previous embodiment, wherein the water inlet 130, the water outlet 140 and the sewage pipe 150 of the filtering devices are communicated. Therefore, the speed and the efficiency of sewage purification can be improved by connecting a plurality of filtering devices in parallel.

In a third aspect, the present embodiment provides a filtering system, as shown in fig. 2 and 3, the filtering system comprises a plurality of filtering devices connected in parallel as in the previous embodiments, wherein the water inlet 130, the water outlet 140 and the sewage drainage pipe 150 of the plurality of filtering devices are communicated.

The motor 170 further comprises a main transmission shaft 172, a plurality of transmission shafts 171 are arranged on the main transmission shaft 172, each transmission shaft 171 correspondingly extends into the membrane element 120 of one filtering device and is connected with the cleaning assembly 180, and the main transmission shaft 172 is used for driving each transmission shaft 171 to rotate when the motor 170 rotates. Therefore, the plurality of filtering devices are connected in parallel, the speed and the efficiency of sewage purification can be improved, and the cleaning components 180 of the filtering devices are simultaneously controlled to ensure that the filtering devices keep the same filtering state.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present invention, which should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A filter device, comprising:

a housing;

and the circulating tank is communicated with the water inlet of the membrane element, the circulating tank is communicated with the other end of the sewage discharge pipe, and the circulating tank is used for forming cross flow filtration in the membrane element.

2. The filtration apparatus of claim 1, further comprising:

3. The filtration device of claim 2, wherein the bottom of the membrane element projects outwardly along the axis, wherein any cross section of the bottom of the membrane element is angled between 30 ° and 45 ° from horizontal.

4. A filter device as claimed in claim 3, wherein the membrane element has a water inlet with a diameter which is larger than the diameter of the sewage drain.

5. The filtration apparatus of claim 3 wherein the circulation tank includes a drain outlet and a controller for simultaneously controlling the discharge of wastewater from the circulation tank into the water inlet, the extraction of wastewater from the membrane elements by the circulation tank, and the discharge of sludge from the circulation tank by the drain outlet.

6. The filtration apparatus of any one of claims 1-5, wherein the membrane element comprises a sintered filter membrane.

7. A filter system comprising a plurality of filter units according to any one of claims 1 to 6 connected in parallel, wherein the inlet, outlet and drain of the plurality of filter units are in communication.

8. A filtration system comprising a plurality of filtration devices according to any one of claims 2 to 5 connected in parallel, wherein the water inlet, the water outlet and the waste pipe of the plurality of filtration devices are in communication;