JPH09313896A - Filters that can freely be installed in parallel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide filters which can be installed anywhere irrespective of fitting positions without the danger of being corroded and have high general applicability. SOLUTION: The filter consists of a vessel body part for housing a filter body and a vessel head 4 in the shape of a parallelepiped screwed thereto. The vessel head 4 is provided with a cylindrical hole downward, and also an annular column 10 is erected therein to form an annular first chamber and a cylindrical second chamber outside and inside it respectively. The first chamber communicates with the input side of the filter body and the second chamber communicates with the output side thereof. A communicative hole 14 is provided upward from the first and second chambers and a flow passage 12 continued from it reaches the vertical side faces of the vessel head part 4, allowing any number of filters to be provided successively by hollow cylindrical couplings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freely connectable filtration filter in which a required number of filtration filters can be freely arranged in series and the processing capacity can be adjusted by operating the respective filtration filters in parallel. Regarding

[0002]

As an application for water filtration or gas filtration, an ultraprecision filtration filter made of a polyethylene porous hollow fiber membrane is preferably used. This ultra-precision filtration filter is commercialized as, for example, Stella Pore K (Mitsubishi Rayon), which can reliably capture not only bacteria but also ultra-fine particles, and has the ability to adsorb and remove pyrogens. Also exists. The polyethylene porous hollow fiber membrane is usually housed in a cylindrical cartridge, and this cylindrical cartridge is
It is used by being stored in a cylindrical storage container. However, the conventional filtration filter has various problems when a plurality of units are operated in parallel to increase the processing capacity. First, in the conventional filtration filter, it is necessary to individually provide the flow passages on the input side and the output side according to the number of filtration filters to be operated in parallel, which is very complicated in this respect. Further, the once constructed flow passage cannot be freely increased or decreased thereafter, and the distribution direction cannot be changed. In short, it was not possible to flexibly respond to the request from the user side. . Further, since the conventional flow passage is made of a metal material, there is a possibility that the inside may be corroded by cleaning with a chemical, which is also a problem.
The present invention has been made in view of these problems, not only there is no fear of corrosion, it is possible to provide a versatile filtration filter that can be installed anywhere regardless of the mounting position. To aim.

[0003]

In order to achieve the above-mentioned object, the present invention is a filtration filter in which a filter body is built in a storage container made of synthetic resin, wherein the storage container is directed upward. A container main body part that is opened to accommodate the filter main body inside, and a rectangular parallelepiped container head that is attached to the container main body part from above, and the container head part opens downward. A cylindrical hole is provided and an annular pillar is erected in this cylindrical hole,
An annular first chamber that is partitioned by the cylindrical hole and the outer periphery of the annular column and a second cylindrical chamber that is partitioned by the inner periphery of the annular column are formed, and the first chamber is The second chamber communicates with one side of the input / output hole of the filter body, the second chamber communicates with the other side of the input / output hole of the filter body, and the container head has the first chamber and the second chamber. From the top to the top, two communication holes are provided, and a flow passage continuing to the communication holes is provided reaching a vertical side surface of the container head, and an end portion of the flow passage is formed at the end of the container head. By being orthogonal to the vertical side surface of the section, it is possible to connect an arbitrary number of filtration filters in series by means of a hollow cylindrical connector.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments. FIG. 1 shows a hollow filter 1 (1A to 1) for a filtration filter F which is an embodiment of the present invention.
It is the front view which illustrated the state where C) and the non-hollow sealing cap 8 (8C) were attached. Filtration filter F shown
In the case where the cylindrical filter body 3 is housed in the bottomed cylindrical container body 2, the container head 4 is screwed onto the container body 2. The material for forming the filter containers 2 and 4, the connector 1 and the sealing cap 8 is polypropylene (PP).
However, polyethylene or Teflon may be used instead. As shown in FIG. 2, the filter body 3 is a polyethylene hollow fiber membrane 5 formed by innumerable submicron micropores in a U-shape and housed in a polycarbonate container 6. For example, Stella Pore K (Mitsubishi Rayon) or the like is applicable. As illustrated, the hollow fiber membrane 5 is folded back on the side of the cartridge bottom 3a,
The cartridge top portion 3b is sealed with a polyurethane sealing material. Therefore, the polycarbonate container 6
The stock solution that has flowed in through the inflow hole 6a formed in the side wall of the cartridge is filtered by passing through the fine holes of the hollow fiber membrane 5, and the filtered solution flows out from the cartridge top portion 3b. Two O-rings 7, 7 are provided on the cartridge top 3b.

FIG. 3 is a plan view of the filtration filter F, in which a hollow connector 1A-1 is attached to the container head 4.
The state where C is attached is shown. Further, unnecessary openings of the container head 4 are closed by using synthetic resin sealing caps 8A to 8C. 4 is a sectional view taken along the line AA of FIG.
FIG. 5 is a sectional view taken along line BB of FIG. As shown in FIGS. 3 to 5, the container head 4 is formed in a substantially rectangular parallelepiped shape as a whole, and is provided with a cylindrical hole 9 that opens downward.
A thread groove is provided on the outer circumference 9a of the cylindrical hole 9 and is screwed with a screw thread formed on the outer circumference 2a of the container body. In the cylindrical hole 9, an annular column 10 is provided upright in a concentric manner with the cylindrical hole 9, and the cartridge top 3b of the filter body 3 is fitted to the inner circumference of the annular column 10. As shown in FIGS. 3 and 5, in the container head 4, a first flow passage 11 that horizontally penetrates an end thereof and a second flow passage that horizontally penetrates a central portion are formed in parallel. Has been done. Further, first and second communication holes 13 and 14 penetrating the container head 4 in the vertical direction are formed in the centers of the first and second flow passages 11 and 12. In addition, communication holes 13, 1
A thread groove is formed on the upper inner circumference 13a, 14a of No. 4 to allow the pressure gauge to be attached. However, in the illustrated example, the sealing caps 8B and 8C are screwed in place of the pressure gauge to surely close the upper portions of the communication holes 13 and 14.

As shown in FIG. 5, the lower portion (first chamber) of the first communication hole 13 communicates with the outer peripheral portion of the filter body 3, and the undiluted solution to be filtered is introduced into the polycarbonate container 6 through the inflow hole 6a. It is designed to be supplied to. On the other hand, the lower portion (second chamber) of the second communication hole 14 communicates with the inner peripheral portion of the cartridge top portion 3b, and the filtered liquid flowing out from the filter body 3 is introduced therein. In this way, the flow passages 11 and 12 are located below the communication holes 13 and 14 (first chamber,
Since it communicates with the filter body 3 via the second chamber), the first flow passage 11 functions as an inflow passage for the undiluted solution.
The flow passage 12 will function as an outflow passage for the filtrate. As shown in FIGS. 3 and 4, the base end portion 12a and the terminal end portion 12b of the second flow passage 12 are formed to have a diameter slightly larger than that of the central portion 12c, and the base end portion 12a and the terminal end portion 12b are A step portion 12d is formed near the vertical side surface of the container head 4. The same applies to the first flow passage 11 as well, and a step portion 11d is formed in the base end portion 11a and the end portion 11b in proximity to the vertical side surface of the container head 4.

At the base end and the end of the flow passages 11 and 12,
Since the hollow connector 1 is fitted or the non-hollow sealing cap 8 is screwed, several thread grooves are formed at the base end and the end of the flow passages 11 and 12, respectively. Has been done.
In the illustrated example, the base end portion 11a and the terminal end portion 11b of the first flow passage 11 are opened by fitting the hollow connectors 1A and 1B, while the base end portion of the second flow passage 12 is opened. Part 12a
Is closed by screwing a sealing cap 8A including an O-ring 17, and the end portion 12b is opened by fitting a hollow connector 1C. As shown in FIG. 4, the hollow connector 1 (1C) has a substantially cylindrical large-diameter central portion 15 and small-diameter protruding portions 16 and 16 protruding from the large-diameter central portion 15 to both sides. Is formed integrally with the. And the connector 1
When is pushed into the flow passages 11 and 12, the large-diameter central portion 15 of the connector 1 is brought into contact with the stepped portions 11d and 12d of the flow passages 11 and 12 and is stabilized. An O-ring 17 is fitted to the end of the small-diameter protrusion 16 to reliably seal the fluid leakage.

The filtration filter F of the present invention is characterized in that the required number can be appropriately connected in series.
It shows the use state in which the individual filtration filters F1 to F3 are arranged in series. In the illustrated state, each filtration filter F1 to
Fixing plates 18 and 19 having substantially the same width as the container head 4 are fixed to the front surface and the back surface of F3.
~ F3 flow passages 11 and 12 are four connecting tools 1B to 1E.
Through the. The fixed plates 18 and 19 reliably integrate a plurality of filters regardless of the pressure inside the filters, but the fixed plate 19 is provided with a hanging hook, and the filter groups F1 to F1. F3
Are to be hung at the required places.

As shown in the plan view of FIG. 7, a coupling tool 1A is attached to the proximal end portion 11a of the first flow passage of the filtration filter F1 to receive the supply of raw water (IN), and the filtration filter F3. At the end 12b of the second flow passage of the
F is attached and the filtered water is output (OUT). The base end portion 12a of the second flow passage of the filtration filter F1
And the end portion 11b of the first flow passage of the filtration filter F3
Are reliably closed by a sealing cap 8A and a sealing cap 8G, respectively. Filtration filters F1 to F
The upper and lower communication holes 13 and 14 of 3 are closed by screwing sealing caps 8C to 8F or pressure gauges 20A and 20B. Specifically, the pressure gauge 20A is attached to the first communication hole 13 of the filtration filter F3 to indicate the input pressure, and the pressure gauge 20B is attached to the second communication hole 14 of the filtration filter F1 to output the output pressure. Is instructing.

Next, the operation contents of the filtration filter groups F1 to F3 having the above construction will be described. The first flow passage 11 of each of the filtration filters F1 to F3 communicates with each other via the connecting tools 1B and 1D, and the end portion 11b thereof is closed by the sealing cap 8G. Therefore, the raw water supplied from the connecting tool 1A is divided into approximately three equal parts and introduced into the outer peripheral part of the filter body 3 through the upper and lower connecting holes 13 of each of the filtration filters F1 to F3. The raw water introduced into each filter body 3 flows in through the inflow holes 6a formed in the sidewall of the polycarbonate container 6, and is filtered in the process of passing through the fine holes of the hollow fiber membrane 5. Then, the filtrate after being filtered flows out from the cartridge top portion 3b of each of the filtration filters F1 to F3. The second flow passage 12 of each of the filtration filters F1 to F3 communicates with each other via the connecting members 1C and 1E, and the base end portion 12a thereof is closed by the sealing cap 8A. Therefore, the filtered water that has flowed out from the cartridge top portion 3b is collected while moving in the second flow passage 12 to the right in FIG. 7, and flows out from the connector 1F to the right.

As described above, the filtration filter of the present invention is
Since it has a rectangular parallelepiped container head 4 having a vertical side surface,
The required number of filtration filters can be connected in series by simply using an appropriate number of connecting tools 1. Then, since the filtration filters connected in series operate in parallel, the filtration flow rate can be increased N times by connecting N filtration filters in series. Therefore, for example, if the filtration filter F of the present invention is used between the dialysate supply device 21 for a large number of people and the bedside monitor 22, a number of filtration filter groups F1 to Fn corresponding to the required water amount can be obtained. It can be easily constructed (see Figure 8). Further, in the filtration filter F of the present invention, the inflow direction of the raw water and the outflow direction of the filtered water can be freely set, so that the attachment position has a high degree of freedom. For example, the sealing cap 8A and the connector 1 of FIG.
By reversing the mounting position of F, the filtered water can be returned to the left side with respect to the raw water flowing in to the right side. That is, since the inflow direction and the outflow direction can be freely set,
In addition to the "Left-to-Right Out" operation shown in, the above "Left-To-Left Out" and other "Right-To-Right Out" and "Right-To-Left Out" operations are added, for a total of four types of operation combinations Becomes As described above, according to the present invention, since the operations of "left-in / left-out" and "right-in / right-out" are possible, as shown in FIG.
A bypass valve V may be attached to one end surface of the plurality of filtration filters F1 to Fn. In the case shown, the raw water is usually the first flow passage 1 of the filtration filter F1.
1, the filtered water is output from the second flow passage 12 of the filtering filter F1 through the bypass valve V, but the bypass valve V is turned on by operating the emergency switch or the like.
When operated, the raw water is output as it is through the bypass valve V without being transmitted to the filtration filter F1 (see the arrow in FIG. 9).

Although one embodiment of the present invention has been described above, various modifications can be made without departing from the spirit of the present invention. For example, in the case of the embodiment, the container head 4 having the same shape is manufactured and the unnecessary opening is closed by the sealing cap 8 depending on the place of use, but this is not always necessary. Explaining with reference to FIG. 7, the filter head F1 used for the input side IN, the filter filter F3 used for the output side OUT, and the filter filter F2 used at the center are separately manufactured to manufacture different container heads 4. You may. More specifically, the container head of the filtration filter F1 closes the left half of the second flow passage 12 and the upper half of the first communication hole 13 at the manufacturing stage. On the other hand, the container head of the filtration filter F3 closes the right half of the first flow passage 11 and the upper half of the second communication hole 14 at the manufacturing stage. As for the container head of the filtration filter F2 used in the center, the first and second communication holes 13 and 14 are closed at the manufacturing stage. In the case of this embodiment, it is necessary to manufacture three types of container heads, but it is excellent in that the closing process with the sealing cap 8 is unnecessary. Since the mounting position of the pressure gauge 20 can also be changed as appropriate, the closed state of the first and second communication holes 13 and 14 for the three types of container heads can be changed accordingly. Moreover, in the embodiment of FIG. 3 and FIG.
Although it is not limited to this, the first and second communication holes 13 and 14 may be formed so that the pressure gauge 20 is attached to the front surface of the container head 4.
In this case, the fixing plate 18 cannot be fixed to the front surface of the container head 4, but the fixing plate 18 cannot be fixed to the horizontal upper surface of the container head 4.
A plurality of filtration filters can be integrated by fixing.

Further, a plurality of container main bodies 2 ... 2 may be screwed to one container head 4, and in this case, the number of connecting members 1 is sufficient and fixed. Board 1
It is excellent in that it is not necessary to use 7,18. FIG.
Are three cylindrical holes 9 _{-1 to} 9 in the substantially rectangular parallelepiped container head 4.
₃ shows an example of a triple filtration filter in which _-3 is formed, and three annular columns 10 _-1 to 10 _-3 are erected in three cylindrical holes 9 _{-1 to} 9 _-3. ing. As shown in the figure, of the three first communication holes 13 _{-1 to} 13 _-3 , the first communication hole 13 _-3 on the right end side penetrates in the up-down direction and the pressure gauge 20A is screwed on the upper part, The upper parts of the other first communication holes 13 _{-1 to} 13 _-2 are closed from the manufacturing stage. Similarly, three second
Of the communication holes 14 _{-1 to} 14 _-3 , the second communication hole 14 on the left end side
_-1 has a pressure gauge 20B screwed onto the upper part of the _-1 penetrating in the vertical direction, and the upper parts of the other second communication holes 14 _{-2 to} 14 _-3 are closed from the manufacturing stage. The stock solution supplied via the connector 1A is supplied from the first flow passage 11 to the three first communication holes 13
It is introduced into the filter body through _{-1 to} 13 _-3 . Then, the filtered water filtered by the filter body is
It is led out from the connector 1B through the second flow passage 12 from the communication holes 14 _{-1 to} 14 _-3 . The terminal end of the first flow passage 11 and the base end of the second flow passage 11 are closed by sealing caps 8 made of synthetic resin. Also in the case of this embodiment, the inflow direction of the undiluted solution and the outflow direction of the filtered solution can be appropriately changed by changing the mounting positions of the sealing cap 8 and the connector 1. In addition, the amount of filtered water can be freely increased by appropriately connecting a plurality of triple filtration filters in FIG. In addition, if a double filtration filter in which two cylindrical holes 9 _{-1 to} 9 _-2 are formed in the substantially rectangular parallelepiped container head 4 is manufactured, the double filtration filter and the triple filtration filter are combined. As a result, the amount of filtered water can be sequentially set to 2 times, 3 times, 4 times, 5 times, 6 times, ....

[0014]

As described above, since the storage container of the filtration filter of the present invention is made of synthetic resin such as polypropylene, it is corroded even if washed with sodium hypochlorite or high-concentration acetic acid. There is no concern about the contamination of filtered water due to corrosion. Further, since the container head is formed in a rectangular parallelepiped shape and the end of the flow passage is orthogonal to the vertical side surface of the container head, it is possible to perform the necessary treatment by using the hollow cylindrical connector. The number of connected units can be adjusted according to the capacity. Moreover, in the present invention, the inflow direction and the outflow direction of the entire filter group can be freely set, so that the mounting position has a high degree of freedom.

[Brief description of drawings]

FIG. 1 is a front view of a filtration filter that is an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an outline of a filter body.

3 is a plan view of the filtration filter of FIG. 1. FIG.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is a front view showing a state in which three filtration filters are arranged in series.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a block diagram showing a usage example of a filtration filter group.

FIG. 9 is a plan view showing a case where a bypass valve is attached.

FIG. 10 is a plan view of a triple filtration filter that is another embodiment of the present invention.

[Explanation of symbols]

 F Filtration filter 1 Connector 2 Container body 3 Filter body 4 Container head 9 Cylindrical hole 10 Annular column 13 First communication hole 14 Second communication hole 11 First flow passage 12 Second flow passage

Claims (4)

[Claims] 1. A filtration filter in which a filter body is built in a synthetic resin storage container, wherein the storage container has a container main body portion that opens upward and stores the filter main body therein. , A rectangular parallelepiped container head attached to the container body from above, the container head is provided with a cylindrical hole that opens downward, and an annular pillar is provided in the cylindrical hole. By erected, a circular first chamber partitioned by the cylindrical hole and the outer periphery of the circular column and a second cylindrical chamber partitioned by the inner periphery of the circular column are formed. The first chamber communicates with one side of the input / output hole of the filter body, the second chamber communicates with the other side of the input / output hole of the filter body, and the container head has: Two connections from the first and second chambers upwards And a flow passage continuous with the communication hole is provided reaching the vertical side surface of the container head, and the end of the flow passage is orthogonal to the vertical side surface of the container head. As a result, it is possible to connect an arbitrary number of filtration filters in series by means of a hollow cylindrical connector, and the filtration filters can be installed in series. 2. The two flow passages extend horizontally from one side of the vertical side surface of the container head toward the other side, and the two flow passages are sealed as necessary. 2. The member is closed by a member.
The filtration filter described in 1. 3. The filtration filter according to claim 1, wherein the storage container includes one container head portion and N container body portions. 4. The two communication holes, at least one of which reaches the horizontal upper surface of the container head so that a pressure gauge can be mounted.
The filtration filter according to any one of claims 1 to 3.