CN110314551B - Rolling type membrane column - Google Patents

Abstract

The embodiment of the invention provides a rolled film column. The coiled membrane column comprises a shell, an end cover, a guide plate, a hollow column and a coiled membrane element. The end covers are respectively and fixedly arranged at two ends of the shell, a first through hole is formed in the center of the end cover, a second through hole is formed in the edge of the end cover, and the second through hole is connected with the water pipe; the guide plate is arranged on one side of the end cover facing the inner end face of the shell, and the light shadow area formed on the guide plate along the axial direction through the second through hole of the end cover is larger than 0; the hollow column is arranged in the shell, two ends of the hollow column are in sealing connection with the first through holes of the two end covers respectively, and a plurality of through holes are formed in the hollow column; the coiled membrane element is coiled on the central column, and is used for filtering the solution between the two end covers and enabling the filtered solution to flow into the through holes. The coiled membrane column injects raw water from the second through hole, and reduces the pressure of water flow impact by using the guide plate to protect the coiled membrane element.

Description

Rolling type membrane column

Technical Field

The invention relates to the technical field of sewage purification, in particular to a coiled membrane column.

Background

The membrane column is a novel membrane separation component applied to liquid desalination and purification, has obvious high pressure resistance and pollution resistance, and is widely applied to a plurality of fields such as medicine, chemical industry, environmental protection sea water desalination, household water purification and the like. The specific effect is different according to the different diaphragms. In the environment-friendly sewage purification, the membrane column can be used for material separation, purification and concentration and is widely used for treating various water qualities.

At present, liquid components which need membrane column treatment in environmental protection are more and more complex, the treatment requirement is higher and higher, and part of membrane columns can not meet the production requirement; meanwhile, when the membrane column is used, the pressurized solution is required to be introduced into the membrane column for filtration, the solution is directly introduced into the membrane column, water flow impact is easily generated by the solution, and a filter element inside the membrane column is damaged.

Disclosure of Invention

The embodiment of the invention provides a rolled membrane column, which aims to solve one or more technical problems in the prior art.

In a first aspect, an embodiment of the present invention provides a rolled film column, including:

A housing;

The end covers are respectively and fixedly arranged at two ends of the shell, a first through hole is formed in the center of the end cover, a second through hole is formed in the edge of the end cover, and the second through hole is connected with a water pipe;

The guide plate is arranged on one side of the end cover, which faces the inner end face of the shell, and the light shadow area formed on the guide plate along the axial direction through the second through hole of the end cover is larger than 0;

the hollow column is arranged in the shell, two ends of the hollow column are in sealing connection with the first through holes of the two end covers respectively, and a plurality of through holes are formed in the hollow column;

The roll-type membrane element is wound on the central column, is used for filtering the solution between the two end covers and enables the filtered solution to flow into the through holes.

In one embodiment, a third through hole is formed in the center of the guide plate, the third through hole and the first through hole are coaxially formed, the hollow column penetrates through the third through hole, the guide plate is fixedly connected with the end cover, and a plurality of guide holes which surround the third through hole and have the same area are formed in the edge of the guide plate.

In one embodiment, the shadow area formed on the baffle plate along the axial direction through the second through hole of the end cover is equal to the area of the second through hole.

In one embodiment, a third through hole is formed in the center of the guide plate, the third through hole and the first through hole are coaxially formed, the hollow column penetrates through the third through hole, the guide plate is fixedly connected with the end cover, a plurality of guide holes surrounding the third through hole are formed in the edge of the guide plate, and the aperture of each guide hole is gradually increased from the position of an intersection point of the axis of the second through hole and the guide plate to the edges of two sides of the guide plate.

In one embodiment, the shadow area formed on the baffle plate along the axial direction through the second through hole of the end cover is equal to the area of the second through hole.

In one embodiment, the roll film column further comprises:

The fixing shaft penetrates through the hollow column, a space exists between the fixing shaft and the hollow column, two ends of the fixing shaft are fixedly connected with the first through holes of the two end covers, and the fixing shaft is used for fixing the shell.

In one embodiment, the roll film element comprises:

The first separation net comprises a first support bar and a second support bar, a plurality of second support bars are arranged in parallel, and a diversion channel is formed between every two adjacent second support bars; the first supporting strips are connected with the second supporting strips in a staggered manner to form the first separation net; the two ends of the first supporting strips between the adjacent second supporting strips are respectively positioned at the bottom and the top of the diversion channel, so that the first supporting strips are obliquely arranged in the diversion channel, and the first supporting strips are used for enabling the solution flowing through the diversion channel to fluctuate.

In one embodiment, the roll film element further comprises:

the filter membrane is characterized in that the first separation net is arranged in the bent filter membrane, one side of the first separation net is fixedly connected with the bending position of the filter membrane, so that the first separation net and the filter membrane form a membrane with an integrated structure, and a plurality of membranes are stacked according to the same opening mode of the filter membrane;

a second screen disposed between adjacent ones of the diaphragms; and the second separation net is sealed and bonded with one end of the outer side surface of the membrane along the bending position of the filter membrane as a starting point until reaching the other end of the bending position of the filter membrane, so that a gap between the bending positions of two adjacent filter membranes on the membrane is used as an outlet of the second separation net.

In one embodiment, the water channel flow in the first separation net is larger than the water channel flow in the second separation net, the first separation net is used for high-concentration raw water circulation, and the second separation net is used for raw water production circulation after filtration.

In one embodiment, the membranes are stacked sequentially in a step form with the bending position of the filter membrane as the starting end;

the starting end of the second separation net is positioned between the bending positions of the two filter membranes, so that the second separation net and the membranes are sequentially stacked in a step mode.

One of the above technical solutions has the following advantages or beneficial effects: when raw water is injected into the shell of the coiled membrane column from the water pipe through the second through hole, the coiled membrane column reduces the pressure of water flow impact by using the guide plate, and protects the coiled membrane element.

The foregoing summary is for the purpose of the specification 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 become apparent by reference to the drawings and the following detailed description.

Drawings

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

Fig. 1 shows a schematic overall structure of a rolled film column according to an embodiment of the present invention.

Fig. 2 shows a schematic structural view of an end cap of a rolled membrane column according to an embodiment of the invention.

Fig. 3 shows a schematic structural view of a first baffle of a rolled membrane column according to an embodiment of the invention.

Fig. 4 shows another schematic structural view of the first baffle of the rolled membrane column according to the embodiment of the invention.

Fig. 5 shows a schematic structural view of a second baffle of a rolled membrane column according to an embodiment of the invention.

Fig. 6 shows another schematic structural view of a second baffle of a rolled membrane column according to an embodiment of the invention.

Fig. 7 shows a schematic view of a first separator structure of a rolled film element of a rolled film column according to an embodiment of the present invention.

Fig. 8 shows a cross-sectional view of a first spacer mesh of a rolled film element of a rolled film column according to an embodiment of the invention.

Fig. 9 is a sectional view showing the overall structure of a rolled film element of a rolled film column according to an embodiment of the present invention.

Fig. 10 shows a top view of a rolled film element of a rolled film column according to an embodiment of the invention.

Reference numerals:

110. a housing; 111. A water pipe; 120. An end cap;

121. A first through hole; 122. A second through hole; 130. A deflector;

131. A third through hole; 132. A first type of deflector aperture; 133. A second type of deflector aperture;

140. a hollow column; 150. A roll-type membrane element; 151. A first screen;

151a, a first support bar; 151b, a second support bar; 151c, flow guiding channel

152. A filter membrane; 153. A membrane; 154. A second screen;

155. bending positions; 156. An adhesive; 160. And a fixed shaft.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways 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. 1 shows a schematic structural view of a rolled film cartridge according to an embodiment of the present invention.

Referring to fig. 1, the rolled membrane column includes a housing 110, an end cap 120, a baffle 130, a hollow column 140, and a rolled membrane element 150.

The end caps 120 are fixedly disposed at two ends of the housing 110, respectively, for forming a water filtering space in the housing 110, as shown in fig. 2, a first through hole 121 is disposed at the center of the end cap 120, a second through hole 122 is disposed at the edge of the end cap 120, the second through hole 122 is connected with the water pipe 111, one second through hole 122 is used for injecting water into the water filtering space formed between the end caps 120, and the other second through hole 122 is used for discharging the filtered water.

The baffle 130 is disposed at a side of the end cap 120 facing the inner end surface of the housing 110, i.e., in the drainage space. And the shadow area formed on the deflector 130 along the axial direction through the second through hole 122 of the end cap 120 (the shadow area refers to the area formed by the second through hole 122 as a reference area, and the light is directly emitted to the second through hole 122 to form a shadow which is the same as the area of the second through hole 122, the area of the shadow cast on the portion of the deflector 130 is called the shadow area) is greater than 0; i.e., the circular shape formed by the second through holes 122, the movement trace in the axial direction necessarily intersects the deflector 130, so that the deflector 130 blocks the water flow flowing in from the second through holes 122, and the impact force of the water flow is reduced.

The hollow column 140 is arranged in the shell 110, two ends of the hollow column 140 are in sealing connection with the first through holes 121 of the two end covers 120 respectively, and a plurality of through holes are arranged on the hollow column 140; the hollow column 140 serves to flow water of the water filtering space between the end caps 120 into the inside of the hollow column 140 through the through holes and out of the housing 110.

The rolled membrane element 150 is wound around the central column, and the rolled membrane element 150 serves to filter the solution between the two end caps 120 and allow the filtered solution to flow into the through holes and out of the housing 110.

The roll type membrane column of the present invention increases the purifying ability of the membrane column to the solution by providing the roll type membrane element 150, and simultaneously, when raw water is injected into the housing 110 of the roll type membrane column from the water pipe 111 through the second through hole 122, the pressure of the water flow impact is reduced by the guide plate 130, thereby protecting the roll type membrane element 150.

In a specific embodiment, referring to fig. 1 and 3, a third through hole 131 is provided at the center of the baffle 130, the third through hole 131 is coaxially provided with the first through hole 121, the hollow column 140 penetrates through the third through hole 131 to enable water to enter the water filtering space after passing through the baffle 130, the baffle 130 is fixedly connected with the end cover 120, and a plurality of first type diversion holes 132 surrounding the third through hole 131 and having the same area are provided at the edge of the baffle 130. The use of the surrounding first type of baffle apertures 132 increases the uniformity of the water flow, allowing for uniform flow of solution into the rolled membrane element 150.

Further, as shown in fig. 4, the position of the baffle 130 corresponding to the second through hole 122 of the end cover 120 is a baffle, so that the shadow area formed on the baffle 130 along the axial direction through the second through hole 122 of the end cover 120 is equal to the area of the second through hole 122, that is, the position of the second through hole 122 corresponding to the baffle 130 is not provided with the first type of baffle hole 132, and the baffle 130 blocks all the solution flowing out from the second through hole 122, thereby reducing the impact force of water flow to the maximum.

In a specific embodiment, referring to fig. 1 and 5, a third through hole 131 is disposed at the center of the baffle 130, the third through hole 131 and the first through hole 121 are coaxially disposed, the hollow column 140 penetrates through the third through hole 131, the baffle 130 is fixedly connected with the end cover 120, a plurality of second type flow guiding holes 133 surrounding the third through hole 131 are disposed at the edge of the baffle 130, and the aperture of the second type flow guiding holes 133 is gradually increased from the intersection point position of the axis of the second through hole 122 and the baffle 130 to the edges of both sides of the baffle 130. The use of the surrounding second type of baffle holes 133 allows for uniform water flow into the rolled membrane element 150.

Further, as shown in fig. 6, the position of the baffle 130 corresponding to the second through hole 122 of the end cover 120 is a baffle, so that the light shadow area formed on the baffle 130 along the axial direction through the second through hole 122 of the end cover 120 is equal to the area of the second through hole 122. That is, the second type of diversion holes 133 are not formed at the positions of the second through holes 122 corresponding to the diversion plates 130, and the diversion plates 130 block all the solution flowing out from the second through holes 122, so that the impact force of water flow is reduced to the maximum extent, and the rolled membrane element is protected.

The deflector in the above two embodiments may be summarized as an embodiment in which the deflector holes are regularly arranged, and an embodiment in which the deflector holes are irregularly arranged, so that the arrangement mode of the deflector holes belonging to any two embodiments should be within the protection scope on the basis.

In one embodiment, referring to FIG. 1, the rolled film column further comprises a stationary shaft 160.

The fixing shaft 160 is penetrated in the hollow column 140, and a space exists between the fixing shaft 160 and the hollow column 140, both ends of the fixing shaft 160 are fixedly connected with the first through holes 121 of the two end caps 120, and the fixing shaft 160 is used for fixing the housing 110, so that the rolled film column can be fixed on the apparatus by using the fixing shaft 160.

In one particular embodiment, referring to fig. 7 and 8, the rolled film element 150 includes a first barrier net 151. The first spacer net 151 includes a first support bar 151a and a second support bar 151b. The second support bars 151b are arranged in parallel, and a diversion channel 151c is formed between every two adjacent second support bars 151b. The thickness dimension of the first support bar 151a is smaller than that of the second support bar 151b. The first supporting bars 151a are connected with the second supporting bars 151b in a staggered manner, namely, a plurality of first supporting bars 151a are used as warp yarns, a plurality of second supporting bars 151b are used as weft yarns, and are connected in a crossed manner to form a net-shaped first separating net 151, wherein the first supporting bars 151a play a role in supporting and connecting. The two ends of the first supporting strip 151a between the adjacent second supporting strips 151b are respectively located at the bottom and the top of the diversion channel 151c, so that the first supporting strip 151a in the diversion channel 151c is obliquely arranged, and thus, when water flows in the diversion channel 151c, one obliquely arranged first supporting strip 151a is always encountered, and the first supporting strip 151a is used for enabling the solution flowing through the diversion channel 151c to fluctuate, so that concentration polarization phenomenon of the water flow in the diversion channel 151c is avoided.

The shapes of the first supporting strips 151a located in the flow guiding channel 151c include "/" shape, "S" shape, "U" shape, etc., that is, as long as the first supporting strips 151a are located in the flow guiding channel 151c and the first supporting strips 151a generate an inclination angle with the plane, all the shapes should be within the protection scope of the embodiment.

In one embodiment, referring to FIG. 9, the rolled membrane element 150 further comprises a filter membrane 152 and a second spacer mesh 154.

The first separation net 151 is disposed in the folded filter membrane 152, and one side of the first separation net 151 is fixedly connected with a folding position 155 of the filter membrane 152 by using an adhesive 156, so that the first separation net 151 and the filter membrane 152 form a membrane 153 with an integrated structure, and a telescope phenomenon is effectively prevented.

In one embodiment, the filter 152 is V-shaped, and the first screen 151 is disposed inside the V-shaped filter 152, and one side of the first screen 151 is fixedly connected to the V-shaped bending position 155 of the filter 152 by an adhesive 156.

Several membranes 153 are stacked in the same open manner of the filter membrane 152.

The second barrier 154 is disposed between adjacent membranes 153; the second separating net 154 is sealed and adhered with an adhesive 156 from one end of the outer side surface of the membrane 153 along the bending position of the filter membrane 152 to the other end of the bending position of the filter membrane 152, so that the gap between the bending positions of two filter membranes 152 on adjacent membranes 153 is used as the outlet of the second separating net 154.

Further, the water channel flow rate in the first screen 151 is greater than the water channel flow rate in the second screen 154, the first screen 151 is a screen for high-concentration raw water flow, and the second screen 154 is a screen for raw water filtration and then produced water flow.

In this embodiment, the rolled membrane elements are stacked by the membrane 153 and are adhered to the separating net, so that the raw water solution and the produced water solution are guided by different separating nets, the filtering flow and the filtering accuracy are increased, and the first separating net 151 and the filtering film 152 are adhered and fixed, thereby effectively preventing the separating net from generating displacement and improving the filtering efficiency.

In one embodiment, referring to fig. 10, the membranes 153 are stacked in a stepwise manner with the bending position 155 of the filter membrane 152 as a starting end; the beginning of the second screen 154 is positioned between the bending locations 155 of the two filter membranes 152 such that the second screen 154 and the membranes 153 are stacked in sequence in a stepped fashion. Thus, the second barrier net 154 and the membrane 153 are stacked in a stepped form, and the overall uniformity of the membrane is ensured when the rolled membrane element 150 is rolled, thereby improving the drainage efficiency.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

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

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within 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 (2)

1. A roll-to-roll membrane column comprising:

A housing;

The end covers are respectively and fixedly arranged at two ends of the shell, a first through hole is formed in the center of the end cover, a second through hole is formed in the edge of the end cover, and the second through hole is connected with a water pipe;

The guide plate is arranged on one side of the end cover, which faces the inner end face of the shell, and the light shadow area formed on the guide plate along the axial direction through the second through hole of the end cover is larger than 0;

the hollow column is arranged in the shell, two ends of the hollow column are in sealing connection with the first through holes of the two end covers respectively, and a plurality of through holes are formed in the hollow column;

the coiled membrane element is coiled on the hollow column and is used for filtering the solution between the two end covers and enabling the filtered solution to flow into the through holes;

the roll film element includes: the first separation net comprises a first support bar and a second support bar, a plurality of second support bars are arranged in parallel, and a diversion channel is formed between every two adjacent second support bars; the first supporting strips are connected with the second supporting strips in a staggered manner to form the first separation net; the two ends of the first supporting strips between the adjacent second supporting strips are respectively positioned at the bottom and the top of the diversion channel, so that the first supporting strips are obliquely arranged in the diversion channel, and the first supporting strips are used for enabling the solution flowing through the diversion channel to fluctuate;

the filter membrane is characterized in that the first separation net is arranged in the bent filter membrane, one side of the first separation net is fixedly connected with the bending position of the filter membrane, so that the first separation net and the filter membrane form a membrane with an integrated structure, and a plurality of membranes are stacked according to the same opening mode of the filter membrane;

A second screen disposed between adjacent ones of the diaphragms; the second separation net is sealed and bonded with one end of the outer side surface of the membrane along the bending position of the filter membrane to the other end of the bending position of the filter membrane, so that a gap between the bending positions of two adjacent filter membranes on the membrane is used as an outlet of the second separation net;

the flow rate of the water channel in the first separation net is larger than that of the water channel in the second separation net, the first separation net is used for high-concentration raw water circulation, and the second separation net is used for water production circulation after raw water filtration;

The membrane takes the bending position of the filter membrane as the starting end, and is sequentially stacked in a step mode;

The starting end of the second separation net is positioned between the bending positions of the two filter membranes, so that the second separation net and the membranes are sequentially stacked in a step mode;

The center of the guide plate is provided with a third through hole, the third through hole and the first through hole are coaxially arranged, the hollow column penetrates through the third through hole, the guide plate is fixedly connected with the end cover, the edge of the guide plate is provided with a plurality of guide holes which surround the third through hole and have the same area, or the edge of the guide plate is provided with a plurality of guide holes which surround the third through hole, and the aperture of the guide holes is gradually increased towards the edges of the two sides of the guide plate by taking the intersection point position of the axis of the second through hole and the guide plate as a starting point;

The baffle plate is arranged at a position corresponding to the second through hole of the end cover, so that the light shadow area formed on the baffle plate along the axial direction through the second through hole of the end cover is equal to the area of the second through hole.

2. The roll film cartridge of claim 1, further comprising:

The fixing shaft penetrates through the hollow column, a space exists between the fixing shaft and the hollow column, two ends of the fixing shaft are fixedly connected with the first through holes of the two end covers, and the fixing shaft is used for fixing the shell.