CN204412076U - Roll-type membrane structure in water purification equipment - Google Patents

Abstract

The utility model discloses a roll-type membrane structure in water purification equipment, which is installed in the membrane shell of the roll-type membrane, and is characterized in that the roll-type membrane is mainly composed of a diaphragm and a hollow central tube wound around the diaphragm There are several water inlet holes on the central pipe, and the water filtered by the diaphragm enters the cavity of the central pipe through the water inlet holes. Coordinated with the arrangement, a filter material is installed in the cavity of the central pipe. The roll-type membrane structure in the water purification equipment provided by the utility model reduces the volume of the whole machine, improves the water output, and is easy to disassemble.

Description

Roll-type membrane structure in water purification equipment

technical field

The utility model relates to a water filtering device, in particular to a coiled membrane structure in a water purifying device.

Background technique

With the rapid development of the country's industrialization, water pollution has become a major problem that the country needs to solve urgently. People's pursuit of a healthy life forms a sharp contradiction with the deteriorating domestic drinking water. In order to solve the current situation of drinking water, reverse osmosis pure water machines are favored by users.

The structure of the existing water purification equipment is: the diaphragm is wound on the center pipe in circles, and then the center pipe is installed in the membrane shell. The diameter of the membrane shell is standard and fixed in the industry. The inner diameter of the center pipe is usually very small, and several water inlet holes are opened on it. The water filtered by the membrane enters the cavity of the central tube through the water inlet hole. After the tap water is filtered by a membrane, it can remove salt and heavy metals, but it cannot deodorize, sterilize, or adjust the pH value of weak acidity. Therefore, after membrane filtration, an activated carbon filter element or other filter materials are installed to absorb organic matter, deodorize, and sterilize, and adjust the pH value to be alkaline, which is more conducive to the health of drinkers. The overall structure of the rear filter element will inevitably result in a large volume of the entire machine, high production costs, and waste of resources.

In order to prevent raw water from entering the center tube and polluting the pure water inside the center tube, a partition plate is arranged inside the center tube to divide the center tube into two parts. Since the existing central tube has a very small inner diameter and is elongated, when the central tube is hollowed out, in order to avoid the deformation phenomenon that the inner diameter of the entire central tube is inconsistent due to shaking during the processing, The partition plate is arranged near the middle of the central tube. Among the two parts separated by the partition plate, a water inlet hole is opened on one part thereof, and its inner cavity is used as a pure water inlet chamber. The other part doesn't work. This structure causes the number of water inlet holes offered on the central pipe to be small, and the water inlet volume is small, thereby affecting the water flow velocity and water volume of filtration.

In addition, in the existing water purification equipment, when taking out the central tube wrapped with the diaphragm from the membrane shell for replacement or maintenance, it is necessary to apply force from one end of the central tube. Due to the tight seal between the center tube and the membrane shell, a relatively large force needs to be applied when taking it out, and due to the structural limitations of the existing center tube itself, it is impossible to find a suitable force application point when applying force, and it is very difficult to operate even with tools. Inconvenient, or even damage, causing a lot of inconvenience to replacement and maintenance.

Utility model content

The utility model aims at the defects in the above-mentioned prior art, and provides a roll-type membrane structure in water purification equipment, which reduces the volume of the whole machine and increases the water output.

In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

A roll-type membrane structure in water purification equipment, installed in the membrane shell of the roll-type membrane, the roll-type membrane is mainly composed of a membrane and a hollow central tube wound around the membrane, the central tube is provided with several The water inlet hole, through which the water filtered by the membrane enters the cavity of the central tube, and the inner diameter of the central tube is set in cooperation with the diameter of the membrane shell of the coiled membrane.

A roll-type membrane structure in water purification equipment, installed in the membrane shell of the roll-type membrane, including a roll-type membrane mainly composed of a membrane and a hollow central tube wound around the membrane, the central tube is provided with several The water inlet hole, through which the water filtered by the membrane enters the cavity of the central tube, and a filter material is installed in the cavity of the central tube.

A roll-type membrane structure in water purification equipment, installed in the membrane shell of the roll-type membrane, including a roll-type membrane mainly composed of a membrane and a hollow central tube wound around the membrane, the central tube is provided with several Water inlet hole, the water filtered by the diaphragm enters the cavity of the central tube through the water inlet hole, and the inner diameter of the central tube is set in cooperation with the diameter of the membrane shell of the roll-type membrane. A filter material is installed in the cavity of the central tube.

The ratio of the inner diameter of the central tube to the diameter of the coiled membrane shell is 4.5:5˜1:5.

Two or more of the roll films are connected.

The central pipe includes a central shell part and a quick-connect shell part that are sealed and connected. material.

The filter material is an active carbon filter element or a granular or powdery material.

One end of the central shell part is provided with an empennage which is convenient for installing and dismounting the roll-type membrane structure in the water purification equipment and the roll-type membrane shell.

The filter material has a fixed structure or a scattered structure.

When the filter material is in a fixed structure, the central shell part and the empennage have a structure matched with the shape of the filter core.

The quick-connect pipe shell is integrally made with the central shell part, and the filter material is disassembled from the fin end of the central pipe; or the tail fin is integrally made with the central shell part, and the filter material is removed from the The quick-connect tube shell end of the center tube is disassembled; or they are independent.

The empennage part and the central shell part are sealed by bonding, welding or sealing ring.

There is a partition plate inside the central tube shell part, and the partition plate is arranged close to the empennage, and the water inlet hole is opened on the central tube shell part between the partition plate and the quick-connect tube shell part.

The partition plate is arranged at one-seventh position of the central shell part.

The partition plate and the empennage are integrally made.

When the empennage is made integrally with the central shell part, the partition plate, the empennage and the central shell part are made integrally.

Sealing is performed between the central tube shell part, the quick-connect tube shell part, and the empennage part by bonding, welding or a sealing ring.

The roll membrane includes reverse osmosis RO membrane and ultrafiltration membrane.

Compared with the prior art, the utility model has the beneficial effects as follows:

1. The increase of the inner diameter of the central tube makes the processing of the central tube easier, and the processing speed and processing quality are improved.

2. By enlarging the inner diameter of the central tube, the activated carbon filter element or other filter materials in the prior art complete machine are built into the central tube cavity, and the central tube becomes the shell of the filter element, which reduces the volume of the complete machine. Reduce production costs and save resources.

3. The increase of the inner diameter of the central tube enables the partition plate to be set close to the end of the central tube, thereby increasing the volume of the central tube inlet cavity, increasing the number of water inlet holes on the central tube, and improving the purity. Water intake.

4. An empennage is added to one end of the central tube. When disassembling the central tube, apply force on the empennage to remove the central tube easily.

Description of drawings

Fig. 1 is a schematic structural view of the coiled membrane structure provided by the present invention installed in the membrane housing;

Fig. 2 is a sectional view along C-C of Fig. 1;

Fig. 3 is a schematic structural view of a central tube of the prior art;

Fig. 4 is a structural schematic diagram of an embodiment of the central tube provided by the utility model;

Fig. 5 is the front schematic diagram of empennage among Fig. 4;

Fig. 6 is a partial sectional view along A-A direction of 4;

Fig. 7 is a partial cross-sectional view of another embodiment of the central pipe provided by the present invention.

In the figure: 1. Quick connection tube shell part; 2. Sealing port; 3. Center tube shell part; 4. Water inlet hole; 5. Pure water channel; 6. Pure water outlet; 7. Partition plate; 8. Empennage ; 9, ribs; 10, pure water inlet chamber; 11, quick-connect insertion end; 12, membrane shell; 13, RO reverse osmosis diaphragm; 14, filter material; 15, central tube.

Detailed ways

The technical scheme of the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1 and Fig. 2, the roll-type membrane structure in a water purification equipment provided by the utility model is installed in a standard membrane case 12. It includes an RO reverse osmosis membrane 13 and a hollow central pipe 15 wound with the RO reverse osmosis membrane 13 . The central pipe 15 is provided with several water inlet holes 4 , and the water filtered by the RO reverse osmosis membrane 13 enters the pure water inlet chamber 10 of the central pipe 15 through the water inlet holes 4 .

The inner diameter of the center pipe 15 is set according to the diameter of the coiled membrane casing 12 , and an activated carbon filter element 14 is installed in the pure water inlet chamber 10 of the center pipe 12 .

The coiled membrane composed of a membrane and a hollow central tube wound around the membrane can have more than two cascaded structures.

The central tube 15 includes a central shell part 3 and an empennage part 8 at one end thereof. The two parts are sealed by bonding, welding or a sealing ring. The filter material 14 is installed in the central shell part 3 . When the filter material 14 is an activated carbon filter element, the central shell part 3 has a structure matched with the shape of the activated carbon filter element at the end where the activated carbon filter element is installed, as shown in FIG. 3 . When the filter material is other granular or powdery, it only needs to be placed in the central shell part 3 .

Figure 3 shows the structure of the central tube in the prior art, the central tube is elongated and includes a central tube shell part 3 and a quick-connect tube shell part 1 at one end thereof. The quick-connect pipe casing part 1 and the roll-type membrane casing 12 are sealed with an O-ring at the sealing port 2 . A number of water inlet holes 4 are opened on the central tube shell part 3 , and the inside of the central tube shell part 3 is a pure water channel 5 . Due to the elongated structure of the central tube, in order to ensure uniform inner diameter of the central tube, the requirements for processing technology are relatively high, and the partition plate 7 must be arranged in the middle position close to the central tube. Cause the quantity of the water inlet hole 4 that offers on the central pipe to be few, and the water inlet is little.

As shown in Figures 4 to 7, the central tube structure provided by the utility model has an enlarged inner diameter, which can be designed according to the inner diameter of the roll-type membrane shell 12, and the ratio of the inner diameters of the two can be set at 4.5:5 to 1:5 within range. When processing the thickened central tube, the requirements for the processing technology are not high, and the partition plate 7 can be arranged close to the empennage. This structural design can increase the number of water inlet holes 4 opened on the central pipe, thereby increasing the water inlet. In this embodiment, the partition plate 7 may be arranged at one-seventh position of the central shell part 3 . The water channel is bigger and can pass through more pure water. The partition plate 7 can be set separately, and can also be set together with the empennage 8 .

During installation, the quick-connect casing part 1 sets the central casing part 3 wrapped with the RO reverse osmosis membrane 13 in the membrane casing 12 through the quick-connect insertion end 11 at one end thereof. When replacing the active carbon in the central tube or the RO reverse osmosis membrane outside the central tube, by applying force on the empennage 8, the central tube shell part 3 equipped with the RO reverse osmosis membrane 13 is taken out from the membrane shell. Seal between empennage 8 and membrane casing. The central shell part 3 serves as a pure water channel 5 on which a pure water inlet hole 4 and a pure water inlet chamber 10 are arranged. The filtered pure water flows out from the pure water outlet 6 of the quick connection shell part 1 .

In Embodiment 1 of the present utility model, when the filter material 14 installed in the central tube shell is an activated carbon filter element or other material with a specific fixed structure, the filter element is installed at the end where the central tube shell part is connected to the empennage part. When replacing the activated carbon filter element, remove the tail part and take the filter element out of the membrane housing directly. At this time, the partition plate and the empennage can be integrated. Moreover, the central tube shell part and the quick-connect tube shell part can be set as one body at the same time. In the utility model embodiment two, when replacing the activated carbon filter core, the quick-connect pipe shell part is pulled down, and at this moment empennage and center pipe shell part are integrally arranged. In the third implementation case of the utility model, the quick-connect pipe shell part, the central pipe shell part and the empennage are independent of each other, and are combined and sealed during use. Put the filter material into the cavity of the central shell part, then connect the quick-connect shell part to the central shell part for sealing, then connect the central shell part and the empennage part, and seal again.

When the filter material 14 installed in the central tube shell is granular, powdery or other unfixed shapes, the filter material only needs to be installed in the inner cavity of the central tube shell part. When replacing the filter material, remove the tail fin and partition plate, and take the filter material out of the membrane housing directly. At this time, the empennage and the partition plate can be integrated, and the central shell part and the quick-connect shell part can be integrated at the same time, or the empennage part is independent from the central shell part and the quick-connect shell part.

The empennage 8 can be arranged as two concentric circles, and a rib 9 is arranged between the two concentric circles, as shown in FIG. 6 . When it is necessary to take out the central shell part 3 wrapped with the RO reverse osmosis membrane 13 from the membrane shell, it can be easily taken out by applying force on the rib 9 of the empennage 8 by hand or tools.

The above-mentioned embodiments are only used to illustrate the technical solution of the utility model, but they are not used to limit the utility model. Any person skilled in the art can use the content disclosed above to make possible changes and modifications to the scheme proposed by the utility model without departing from the spirit and scope of the utility model. , Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model all belong to the protection scope of the utility model.

Claims (14)

1. A roll-type membrane structure in water purification equipment, which is installed in the membrane shell of the roll-type membrane, is characterized in that the roll-type membrane is mainly composed of a diaphragm and a hollow central tube winding the diaphragm, and the A number of water inlet holes are opened on the central pipe, and the water filtered by the membrane enters the cavity of the central pipe through the water inlet holes. Match the settings. 2. A roll-type membrane structure in water purification equipment, which is installed in the membrane shell of the roll-type membrane, is characterized in that it comprises a roll-type membrane mainly composed of a diaphragm and a hollow central tube wound around the diaphragm, said A number of water inlet holes are opened on the central pipe, through which the water filtered by the membrane enters into the cavity of the central pipe, and a filter material is installed in the cavity of the central pipe. 3. A coiled membrane structure in water purification equipment, which is installed in the membrane housing of the coiled membrane, is characterized in that it comprises a coiled membrane mainly composed of a diaphragm and a hollow central tube wound around the diaphragm, said A number of water inlet holes are opened on the central pipe, and the water filtered by the membrane enters the cavity of the central pipe through the water inlet holes. Coordinated with the arrangement, a filter material is installed in the cavity of the central pipe. 4. The coiled membrane structure in a water purification device according to claim 1, 2 or 3, wherein the ratio of the inner diameter of the central tube to the diameter of the coiled membrane shell is 4.5:5 ~1:5. 5. The roll-type membrane structure in water purification equipment according to claim 1, 2 or 3, characterized in that there are more than two roll-type membranes connected. 6. The roll-type membrane structure in a kind of water purification equipment according to claim 1, 2 or 3, characterized in that, the central pipe comprises a quick-connect pipe shell part, a central pipe shell part and an empennage which are sealed and connected in sequence, The quick-connected shell part is used to fix the roll-type membrane in the membrane shell of the roll-type membrane, and the central shell part is installed with a filter material. 7. The roll-type membrane structure in a water purification device according to claim 6, characterized in that, between the central shell part and the quick-connect shell part, between the tail fin and the central shell part, pass Bonding, welding or sealing ring for sealing. 8 . The roll-type membrane structure in water purification equipment according to claim 6 , wherein the filter material has a fixed structure or a loose structure. 9. The roll-type membrane structure in a water purification device according to claim 7, characterized in that, the quick-connect pipe shell and the central shell part are integrally made, and the filter material starts from the center The empennage end of the tube is disassembled; or the empennage is integrally made with the central tube shell part, and the filter material is disassembled from the quick-connecting shell end of the central tube. 10. The roll-type membrane structure in a water purification device according to claim 8, wherein when the filter material is a fixed structure, the central tube has a structure that matches the shape of the filter material and is installed . 11. The roll-type membrane structure in a kind of water purification equipment according to claim 9, characterized in that, there is a partition plate inside the central shell part, the partition plate is arranged near the empennage, and the inlet The water hole is opened in the central shell part between the said dividing plate and the quick connection shell part. 12 . The roll-type membrane structure in water purification equipment according to claim 11 , characterized in that, the partition plate is arranged at one-seventh position of the central shell part. 13 . 13. The roll-type membrane structure in water purification equipment according to claim 11, characterized in that, the partition plate and the tail fin are integrally made. 14. The roll-type membrane structure in a kind of water purification equipment according to claim 13, characterized in that, when the empennage and the central shell part are integrally made, the separation plate, the empennage Made in one piece with the central shell part.