JP2000037601A - Degassing module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent adherence of iron and the like to the end face of a module body, easily connect degassing modules with each other, and moreover make the whole apparatus body compact. SOLUTION: A module cap 5 is fitted in either end part of a module body 2 to foam a space part 14 between the ceiling face 13 of the module cap 5 and the end face 12 of the module body 2, a partitioning member 7 provided with flow ports 6 formed in the end face 12 side and the ceiling face 13 side is installed in the inside of the space part 14 to an end side space part 15 and the ceiling face side space part 16 in the space part 14 by the partitioning member 17, and granular floating bodies 8 are housed in the end face side space part 15. Further, a treated water side module cap 11 is fitted in the other end part of the module body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a degassing module used in a vacuum degassing apparatus for degassing and removing a dissolved gas in a liquid using a hollow fiber gas separation membrane or the like.

[0002]

2. Description of the Related Art In recent years, a deaerator has been used as a measure for preventing red water in buildings such as buildings and condominiums. In addition, a deaerator is installed in a water supply line for cooling and heating equipment such as a boiler, a water heater, and a cooler for the purpose of preventing internal corrosion of these equipment.

As the deaerator, a device using a hollow fiber gas separation membrane or the like is widely used because of its compactness and easy handling. In this type of deaerator, a deaeration module containing a gas separation membrane such as a hollow fiber-shaped gas separation membrane is connected in a water supply line to the equipment to be used, and raw water is passed through the deaeration module. In this water passing process, the inside of the degassing module is evacuated to degas and remove dissolved gases in the raw water. The degassing module is formed by fitting module caps to both ends of a module body composed of an assembly such as a hollow fiber gas separation membrane.

[0004] By the way, in the deaerator having the above-mentioned structure,
Degassing and removal of dissolved gas from raw water is performed by passing raw water through the degassing module and evacuating the degassing module during the flow of water. If the dissolved gas in the raw water is continuously degassed and removed, iron, manganese, mud, algae, and the like in the raw water are collected at the end face (the fluid inlet side) of the module body composed of an aggregate such as a hollow fiber gas separation membrane. ), And the iron and the like grow on the end face of the module main body with time. Generally, in the deaerator, a filter is provided in front of the deaerator in order to prevent adhesion and growth of the iron and the like.
Those that are ionic or smaller than the filtration accuracy of the filter penetrate the filter and adhere to the end face of the module body, which grows and closes the entrance of the hollow fiber-like separation membrane or the like. When such blockage (clogging) occurs, the flow rate of the treated water in the deaerator decreases, and the efficiency of the deaerator as a whole also decreases. In addition, the life of the module itself is shortened.

In order to prevent the adhesion and growth of iron and the like to the end face of the module body, the present applicant has previously filed a patent application (see Japanese Patent Application Laid-Open No. 9-103606). Specifically, a gas separation membrane module shown in FIG. 9 has been proposed. By the way, recently, there has been a demand for responding to the demand for increasing the processing amount by the deaerator and making the entire apparatus compact.

[0006]

SUMMARY OF THE INVENTION The present invention prevents the adhesion and growth of iron or the like to the end face of the module main body, and responds to the demand for increasing the throughput by the deaerator and makes the entire apparatus compact. It is an object of the present invention to provide a degassing module which can easily perform the degassing.

[0007]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is characterized in that the water to be treated is provided at one end of the module body. A module cap having an inflow port and an outflow port for circulation is fitted, and a space is formed between a ceiling surface of the module cap and an end face of the module main body. A partition member provided with a flow opening for partitioning a space between the side surface and the ceiling surface side, and an end surface side space portion and a ceiling surface side space portion are formed in the space portion by the partition member, and granular floating in the end surface side space portion is provided. House the body,
Further, a treated water-side module cap having a treated water inlet and a treated water outlet through which treated water flows is fitted to the other end of the module main body.

According to a second aspect of the present invention, module caps having an inlet and an outlet through which a fluid flows are fitted to both ends of the module main body, respectively, and the ceiling surface of both the module caps and the module main body. A space portion is formed between each of the two end surfaces, and a partition member provided with a flow port for partitioning the space portion between the end surface side and the ceiling surface side is provided in both space portions. An end surface side space portion and a ceiling surface side space portion are respectively formed in both space portions, and a granular floating body is accommodated in each of the both end surface side space portions.

According to a third aspect of the present invention, the distribution port comprises:
It is characterized by being formed by a plurality of small holes.

The invention according to a fourth aspect is characterized in that a guide blade is provided at a position facing the flow port.

According to a fifth aspect of the present invention, a module cap having a flow port through which a fluid flows is fitted to both ends of the module body, and the flow through which the water to be treated flows into one of the module caps. It is characterized in that a manifold having an inlet and an outlet is fitted, and a granular floating body is accommodated in the module cap on the side fitted with the manifold.

According to a sixth aspect of the present invention, a module cap having a flow port through which a fluid flows is fitted to both ends of the module main body, and an inlet and an outlet through which the fluid flows through both module caps. In addition, each of the module caps is fitted with a corresponding one of the manifolds, and the granular floating bodies are respectively accommodated in the two module caps.

[0013] In the invention according to claim 7, the distribution port is
It is characterized by being formed by a plurality of small holes.

Further, the invention according to claim 8 is characterized in that a guide blade is provided at a position facing the distribution port.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of the present invention will be described. The present invention is characterized in that one end of a module body composed of an aggregate of hollow fiber-shaped gas separation membranes is provided at one end.
A module cap having an inlet and an outlet through which water to be treated flows is fitted, and a space is formed between a ceiling surface of the module cap and both end surfaces of the module main body. A partition member having a plurality of small holes that divides the inside of the space into the end surface side and the ceiling surface side is provided, and the inside of the space is divided into an end surface space portion and a ceiling surface space portion through the partition member. And a granular water moving body is accommodated in the end face side space, and a treated water side module cap having a treated water inlet and a treated water outlet through which treated water flows is fitted to the other end of the module body. This is realized in a degassing module having a combined configuration.

The module cap is formed in a box shape, and is provided with an inlet and an outlet through which water to be treated flows. The inflow port and the outflow port are each formed as an opening having an appropriate shape. When connecting a plurality of deaeration modules, the outlet of the module cap on the front stage and the inlet of the module cap on the next stage are opposed to each other, and are connected by predetermined connecting means (for example, bolting). I do. In addition, the distribution port of the partition member is disposed so as to be located at a position corresponding to the inflow port. Further, when a plurality of the deaeration modules are connected, the outflow port in the module cap of the deaeration module arranged on the most downstream side is sealed by an appropriate means. Furthermore, the connection of the vacuum suction lines between the adjacent module bodies is connected by, for example, a suction-type flow path joining element, thereby shortening the connection interval between the module bodies.

As described above, the amount of deaerated water can be increased by connecting a plurality of deaeration modules. That is, the water to be treated flowing from the inlet of the degassing module disposed on the uppermost stream side flows into the ceiling side space part and the end face side space part and flows thereinto, and flows into the ceiling side space part. The treated water flows into the connected degassing module. On the other hand, the to-be-processed water that has flowed into the end face side space through the through-flow port causes the granular floating body to swing freely due to the flow rate of the to-be-processed water. The floating movement of the granular floating body prevents iron or the like from adhering to the end face and removes iron or the like already adhering to the end face. Then, the water to be treated flows into the module main body, is evacuated when passing through the module main body, the dissolved gas in the water to be treated is degassed, and the treated water is treated by the treated water side module cap. It is supplied to the load side via a water outlet. Further, since the flow ports are formed by small holes smaller than the granular play bodies, the granular play bodies do not flow out of the end face side space. Further, a guide vane may be provided at a position facing the distribution port to ensure that the granular floating body can freely rotate. Furthermore, the partition member may be provided in the treated water-side module cap, and the granular floating body may be accommodated in the end surface side space formed by the partition member in the same manner as described above.

Next, a second embodiment which replaces the first embodiment will be described. In the embodiment of the degassing module described here, a plurality of the module main bodies can be connected, and module caps each having a flow port through which a fluid flows at both ends of the module main body are fitted. In this configuration, the two module caps are fitted with manifolds each having an inlet and an outlet through which a fluid flows, and a granular floating body is accommodated in each of the module caps. In addition, the flow port is formed by a plurality of small holes to prevent the granular floating body from flowing out. Further, a guide vane may be provided at a position facing the distribution port to ensure that the granular floating body can freely rotate.

Here, in a configuration in which a plurality of the deaeration modules are connected, providing the manifold and the granular floating body on one or both of the module caps will be described. For example, a plurality of the module bodies are connected, Further, the water to be introduced into the module main body may be alternately introduced from both ends of the module main body. In the case where the water to be treated is introduced alternately, the manifolds are fitted to the both ends, respectively, as in the second embodiment,
Each of the granular caps is accommodated in each of the module caps so as to cope with alternate introduction of the water to be treated.
Therefore, when the introduction of the to-be-processed water is limited to any one, the accommodation of the manifold and the granular floating body may be any one. The deaeration of the water to be treated is the same as in the first embodiment, and a description thereof will be omitted.

As described above, the degassing module of the present invention can prevent the adhesion and growth of iron and the like to the end face of the module main body, and can easily connect the degassing module.
The whole device can be made compact.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional explanatory view of a first embodiment schematically showing the structure of a degassing module embodying the present invention, FIG. 2 is a front explanatory view of FIG. 1, and FIG.
A plurality of degassing modules of FIG. 1 (three in this embodiment)
It is sectional explanatory drawing which shows the state connected.

In FIG. 1, a degassing module 1 according to the present invention basically includes a module main body 2 composed of an aggregate of hollow fiber-shaped gas separation membranes, and is fitted to one end of the module main body 2 to be covered. A module cap 5 having an inlet 3 and an outlet 4 through which the treated water flows; a treated water inlet 9 and a treated water outlet 10 fitted to the other end of the module main body 2 and through which the treated water flows. And a treated water side module cap 11 provided with

As shown in FIGS. 1 and 2, by fitting the module cap 5 to one end of the module main body 2, the end face 12
A space part 14 is formed between the module cap 5 and the ceiling surface 13. A partition member 7 for partitioning the interior of the space 14 into the end surface 12 and the ceiling surface 13 is provided in the space 14, and the partition member 7 allows the space 14 to have an end surface space. Part 15 and ceiling side space part 1
6 are formed. The partition member 7 is provided with a circulation port 6 through which the water to be treated flows. This distribution port 6
It is formed by piercing a plurality of small holes smaller than the particle diameter of the granular floating body 8 accommodated in the end face side space 15 (see FIG. 2). The distribution port 6 is arranged at a position corresponding to the inflow port 3 (see FIG. 2). As a result, the inside of the space 14 is divided into two spaces by the partition member 7, and the water to be treated that has flowed in from the inflow port 3 is partially diverted, and is divided from the flow port 6 to the end face side. It flows into the space 15. That is, the partition member 7 allows the water to be treated flowing in the space 14 to flow in the ceiling-side space 16 to the deaeration module 1 connected to the next stage. And is diverted as water to be treated into the end surface side space 15 through the circulation port 6.

Then, the treated water-side module cap 11 is fitted to the other end of the module main body 2, and the other end face 17 of the module body 2 and the ceiling of the treated water-side module cap 11 are fitted by this fitting. The other side space portion 19 is formed between the surface 18. The other side space 19 becomes a flow path of the treated water, and the treated water flows out from the treated water outlet 10.

The module cap 5 and the treated water side module cap 11 are formed in a box shape with synthetic resin or the like, and the inlet 3, the outlet 4, the treated water inlet 9, and the treated water outlet 9 are formed. Reference numeral 10 denotes a hole having a predetermined diameter. When a plurality of the degassing modules 1 are connected, as shown in FIG. 3, the outflow port 4 of the module cap 5 of the first degassing module 1 is connected.
The treated water inlet 9 of the treated water-side module cap 11 faces the inlet 3 of the module cap 5 of the second degassing module 1 and the treated water outlet 10 of the treated water-side module cap 11. Are connected by a predetermined connecting means (for example, bolting or the like). At this time, the distribution port 6 of the partition member 7 is arranged at a position corresponding to the inflow port 3 as described above. Furthermore, when a plurality of the degassing modules 1 are connected, the outlet 4 and the treated water inlet 9 of the degassing module 1 arranged at the most downstream side are sealed by appropriate means (detailed description is omitted). I do.)

Here, the connection of the vacuum suction lines (symbols omitted) between the adjacent module bodies 2 will be described. The connection of this vacuum suction line is performed by connecting the first joint port 20 opened on one side and the second joint port 21 opened on the other side at the center of the module body 2 in the longitudinal direction (vertical direction in FIG. 1). Done through. Specifically, as shown in FIG. 4, a sucker type flow path joining element 22 (for details, refer to Japanese Patent Application No. 10-23851 filed by the present applicant. Hereinafter, abbreviated as "joining element 22"). ).

That is, as shown in FIG. 3, the second joint port 2 of the deaeration module 1 arranged on the most upstream side (first)
1 is inserted with the flow guide 23 of the joining element 22. In this state, the joining element 22 is placed around the second joining port 21.
Of the bonding element 22 around the first bonding port 20 of the degassing module 1 disposed second. Is adsorbed while covering the first joining port 20. Next, the degassing module 1 arranged secondly and the degassing module 1 arranged thirdly are connected via the joining element 22 in the same procedure. The first joining port 20 of the first degassing module 1 is connected to a vacuum suction line (not shown) communicating with a vacuum pump (not shown). The second joining port 21 is sealed by an appropriate means.
Therefore, by using the joining element 22 to connect the vacuum suction lines between the degassing modules 1, the connection interval between the degassing modules 1 can be shortened.

As described above, by connecting the degassing modules 1, the amount of degassed water can be easily increased as desired. That is, as shown in FIG. 3, the water to be treated flowing from the inlet 3 of the degassing module 1 arranged first is divided into the ceiling space 16 and the end space 15. The water to be treated that has flowed into the ceiling-side space 16 passes through the outflow port 4 of the first deaeration module 1 and flows out of the inflow port 3 of the second deaeration module 1. Also flows in. On the other hand, the end face side space 15
The to-be-processed water flowing into the water causes the granular floating body 8 to swing freely by the flow rate of the to-be-processed water. The floating movement of the granular floating body 8 prevents iron and the like from adhering to the end face 12 and removes iron and the like already adhering to the end face 12. And the water to be treated is
And the inside of the module body 2 is evacuated when passing through the module body 2, the dissolved gas in the water to be treated is degassed, and the treated water is passed through the treated water outlet 10 of the treated water side module cap 11. It is supplied to the load side. Further, since the flow ports 6 are formed by small holes smaller than the granular play bodies 8, the granular play bodies 8 do not flow out from the end face side space 15. Further, as shown in FIG. 5, a guide blade 26 may be provided at a position of the partition member 7 facing the distribution port 6 to ensure the floating movement of the granular floating body 8.

Next, a second embodiment of the present invention will be described with reference to FIG. In the first embodiment, the introduction direction of the water to be treated is limited to one direction (from the upper side to the lower side in FIG. 1). In some cases, water is alternately introduced from both ends to backwash the hollow fiber gas separation membrane. The second embodiment has a configuration corresponding to the backwashing. That is, the other-side space 19 formed between the other end face 17 of the module main body 2 described in the first embodiment and the ceiling face 18 of the treated water-side module cap 11 is divided by the partition member 7. An end surface side space portion 27 and a ceiling surface side space portion 28 are formed in the other side space portion 19, and the granular floating body 8 is accommodated in the end surface side space portion 27. In this respect, the configuration other than the configuration described here is the same as that of the first embodiment, and thus the detailed description is omitted.

Next, a third embodiment of the present invention will be described with reference to FIG. Of the constituent members described in the third embodiment, members common to the constituent members described in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

The third embodiment shown in FIG. 7 is for connecting a plurality of deaeration modules 1 and has a module cap having a flow port 29 through which fluid flows at an end of the module body 2. 30 and 30 are fitted respectively, and into one of the two module caps 30 (in this embodiment, the upper side of FIG. 7), the inflow port 3 through which the water to be treated flows
A box-shaped manifold 33 having an outlet 1 and an outlet 32 is fitted, and the granular floating body 8 is accommodated in the module cap 30 on the side where the manifold 33 is fitted. The flow port 29 is formed by a plurality of small holes to prevent the granular floating bodies 8 from flowing out of the module cap 30. In the third embodiment, the flow port 29 is disposed at a position corresponding to the inlet 31 of the manifold 33, similarly to the flow port 6 in the first embodiment.
In addition, since the module cap 30 has the same function as the partition member 7 in the first embodiment, the water to be treated flowing from the inlet 31 flows into the flow port 29 and the module The flow is diverted into the flow into a flow path 34 formed between the outer surface of the cap 30 and the ceiling surface of the manifold 33. In this regard, in the third embodiment, since the function of the partition member 7 described in the first embodiment is substituted by the module cap 30, the degassing treatment of the water to be treated and the like are performed as follows. Detailed description is omitted.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In the third embodiment, the introduction direction of the water to be treated is limited to one direction (from the upper side to the lower side in FIG. 7), but in the fourth embodiment, the introduction direction of the water to be treated is two directions ( It can be changed alternately from upper to lower in FIG. 8 (two directions from lower to upper). That is, the manifold 3 described in the third embodiment
3 are fitted to both the module caps 30, respectively.
The configuration is such that the granular floating bodies 8 are accommodated in the module caps 30 respectively. In this respect, the deaeration treatment of the water to be treated and the like are the same as those in the third embodiment and the second embodiment.

[0033]

As described above, according to the degassing module of the present invention, the adhesion and growth of iron and the like to the end face of the module main body can be prevented, and the degassing module can be easily connected. It is possible to quickly respond to a request for increasing the amount of treated water. Further, the whole apparatus can be made compact.

[Brief description of the drawings]

FIG. 1 is a cross-sectional explanatory view of a first embodiment schematically showing a configuration of a degassing module embodying the present invention.

FIG. 2 is an explanatory front view of FIG. 1;

FIG. 3 is an explanatory sectional view showing a state in which a plurality of deaeration modules shown in FIG. 1 are connected.

FIG. 4 is an enlarged cross-sectional explanatory view showing a configuration of a suction cup type flow path joining element for connecting the module bodies shown in FIG. 3;

FIG. 5 is an enlarged cross-sectional explanatory view showing a state where guide vanes are mounted on the partition member shown in FIG. 1;

FIG. 6 is an explanatory sectional view schematically showing the configuration of a second embodiment of the present invention.

FIG. 7 is an explanatory sectional view schematically showing the configuration of a third embodiment of the present invention.

FIG. 8 is an explanatory sectional view schematically showing a configuration of a fourth embodiment of the present invention.

FIG. 9 is an explanatory sectional view schematically showing a configuration of a conventional degassing module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deaeration module 2 Module main body 3 Inflow port 4 Outflow port 5 Module cap 6 Distribution port 7 Partition member 8 Granular floating body 9 Treated water inlet 10 Treated water outlet 11 Treated water side module cap 12 End face 13 Ceiling surface 14 Space part 15 End face Side space 16 Ceiling side space 26 Guide vane 29 Flow port 30 Module cap 31 Inlet 32 Outlet 33 Manifold

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Moto Abe, 7-7, Horie-cho, Matsuyama-shi, Ehime Miura Kogyo Co., Ltd. (72) Inventor Hiroaki Fujiwara 7, Horie-cho, Matsuyama-shi, Ehime Miura Kogyo Co., Ltd. Reference) 4D006 GA32 HA01 PC31 4D011 AA08 AA16

Claims (8)

[Claims] 1. A module cap 5 having an inflow port 3 and an outflow port 4 through which water to be treated flows is fitted to one end of the module main body 2, and a ceiling surface 13 of the module cap 5 is A space 14 is formed between the module body 2 and the end surface 12, and a partition 6 having a flow opening 6 in the space 14 for partitioning the space 14 into the end surface 12 side and the ceiling surface 13 side. A member 7 is provided.
Forming an end surface side space portion 15 and a ceiling surface side space portion 16 in the space portion 14, accommodating the granular floating bodies 8 in the end surface side space portion 15, and further the other end portion of the module main body 2. A degassing module characterized in that a treated water side module cap 11 having a treated water inlet 9 and a treated water outlet 10 through which treated water flows is fitted. 2. Module caps 5 and 5 having an inlet 3 and an outlet 4 through which fluid flows are fitted to both ends of the module main body 2, respectively.
Ceiling surfaces 13 and 13 and both end surfaces 1 of the module body 2
Spaces 14 and 14 are formed between them and 2 and 12, respectively.
In the two space portions 14, the inside of the space portion 14
Members 7 and 7 are provided with flow openings 6 for partitioning the space side and the ceiling surface 13 side, respectively. The partition members 7 allow the end surface side space portions 15 and 15 and the ceiling surface side space portion in the both space portions 14. A degassing module comprising: a plurality of granular floating bodies formed in the space portions on both end faces; 3. The degassing module according to claim 1, wherein the flow port is formed by a plurality of small holes. 4. A guide blade 26 is provided at a position opposed to said flow port 6.
The degassing module according to any one of claims 1 to 3, further comprising: 5. Module caps 30, 30 having flow ports 29 through which fluid flows at both ends of the module main body 2.
Are fitted to each other, and an inlet 31 and an outlet 3 through which water to be treated flows into one of the two module caps 30.
2. A degassing module characterized in that a manifold 33 having the above-mentioned structure 2 is fitted therein, and the granular floating bodies 8 are accommodated in the module cap 30 on the side where the manifold 33 is fitted. 6. Module caps 30, 30 having flow ports 29 through which fluid flows at both ends of the module body 2.
The manifolds 33, 33 each having an inflow port 31 and an outflow port 32 through which a fluid flows into both module caps 30 are fitted, and the granular floating bodies 8 are placed in both the module caps 30. A degassing module characterized by being housed in each. 7. The flow port according to claim 5, wherein the flow port is formed by a plurality of small holes.
A degassing module according to 1. 8. A guide blade 2 is provided at a position opposed to said flow port 29.
The degassing module according to any one of claims 5 to 7, further comprising: