JP4110625B2 - Deaeration module - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of a degassing module used in a vacuum degassing device for degassing and removing dissolved gas in a liquid using a hollow fiber gas separation membrane or the like , and in particular, the throughput by the vacuum degassing device This is related to the structure of a deaeration module that can respond to the increase in demand, that is, to connect and use a plurality of units according to the required amount of treated water .
[0002]
[Prior art]
In recent years, deaeration devices have come to be used as a countermeasure against red water in buildings such as buildings. In addition, a deaeration device is incorporated in a water supply line to a cooling / heating device such as a boiler, a water heater and a cooler for the purpose of preventing internal corrosion of these devices.
[0003]
As the deaeration device, one using a hollow fiber gas separation membrane or the like is frequently used because of the compactness of the device and the ease of handling. This type of deaeration device connects a deaeration module containing a gas separation membrane such as a hollow fiber gas separation membrane in the water supply line to the equipment used, and feeds raw water into the deaeration module. In this water flow process, the inside of the deaeration module is evacuated to remove the dissolved gas in the raw water. The deaeration module is formed by fitting module caps to both ends of a module body made of an assembly such as a hollow fiber gas separation membrane.
[0004]
By the way, in the deaeration device having the above-described configuration, the deaeration and removal from the dissolved gas in the raw water is performed by passing the raw water through the deaeration module and evacuating the deaeration module during the water passing process. Do. If the dissolved gas in the raw water is continuously degassed and removed, the end surface of the module body (iron side on the fluid inlet side) in which the iron, manganese, mud, algae, etc. in the raw water are composed of aggregates such as hollow fiber gas separation membranes. ) And the iron or the like grows on the end face of the module body over time. In general, in the deaeration device, in order to prevent the adhesion and growth of the iron and the like, a filter is provided in front of the deaeration device, but the ionic or smaller than the filtration accuracy of the filter, It passes through the filter and adheres to the end face of the module body, which grows up and closes the inlet of the hollow fiber separation membrane or the like. When such a blockage (clogging) occurs, the flow rate of treated water in the deaeration device decreases, and the efficiency of the entire deaeration device also decreases. In addition, the lifetime of the module itself is shortened.
[0005]
Therefore, for the purpose of preventing adhesion and growth of iron and the like on the end face of the module body, the present applicant has previously filed a patent application (see Japanese Patent Laid-Open No. 9-103606), and specifically, The gas separation membrane module shown in FIG. 9 is proposed. By the way, recently, it has been demanded to respond to the demand for increasing the processing amount by the deaeration device and to make the entire device compact.
[0006]
[Problems to be solved by the invention]
The present invention provides a deaeration module that can prevent adhesion and growth of iron and the like on the end face of the module body, and can easily meet the demand for an increase in the processing amount by the deaeration device and make the entire device compact. It is intended to do.
[0007]
[Means for Solving the Problems]
This invention was made in order to solve the above-mentioned subject, and the invention according to claim 1 is a deaeration module for connecting and using a desired number according to the required amount of treated water, A module cap having an inlet and an outlet through which water to be treated circulates is fitted to one end of the module main body, and a space portion is formed between the ceiling surface of the module cap and the end surface of the module main body. And a partition member provided with a flow port for partitioning the space portion into the end surface side and the ceiling surface side is provided in the space portion, and the end surface side space portion and the ceiling surface side space are provided in the space portion by the partition member. A treated water side module cap comprising a treated water inlet and a treated water outlet through which treated water flows in the other end of the module body. the fitting In order to enable connection of a plurality of the deaeration modules, the outlet of the module cap on the front stage side and the inlet of the module cap on the next stage side are connected to face each other. And configured so that the treated water outlet of the treated water side module cap on the front stage side and the treated water inlet of the treated water side module cap on the next stage side are connected to each other, and further adjacent to each other The connection of the vacuum suction lines between the module bodies is configured such that the second joint port of the module body on the previous stage side and the first joint port of the module body on the next stage face each other. It is a feature.
[0008]
The invention according to claim 2 forms an other side space portion between a ceiling surface of the treated water side module cap and the other side end surface of the module body, and the inside of the other side space portion is formed in the other side space portion. A partition member having a flow port for partitioning into the other side end surface side and the ceiling surface side is provided, and the end surface side space portion and the ceiling surface side space portion are formed in the other side space portion by the partition member, and the end surface A granular floating body is accommodated in the side space .
[0009]
Furthermore, the invention described in claim 3 is characterized in that the flow port is formed by a plurality of small holes.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, the first embodiment of the present invention will be described. In the present invention, an inlet and an outlet through which water to be treated circulates at one end of a module body made of an assembly of hollow fiber gas separation membranes. And a space portion is formed between a ceiling surface of the module cap and both end surfaces of the module body, and the space portion is defined within the space portion by the end surface side and the ceiling surface side. A partition member provided with a circulation port composed of a plurality of small holes is provided, and the space portion is divided into an end surface side space portion and a ceiling surface side space portion via the partition member, and the end surface side space portion is divided into the space portion. This is realized in a deaeration module configured to accommodate a granular floating body and further to a treated water side module cap having a treated water inlet and a treated water outlet through which the treated water flows at the other end of the module body. .
[0016]
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 appropriately shaped opening hole. When connecting a plurality of the 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 connected by a predetermined connecting means (for example, bolt tightening). To do. Moreover, the distribution port of the partition member is arranged to be 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 disposed on the most downstream side is sealed by an appropriate means. Furthermore, the connection of the vacuum suction lines between the adjacent module main bodies is connected, for example, by a suction cup type flow path joining element, thereby shortening the connection interval between the module main bodies.
[0017]
As described above, the amount of degassed water can be increased by connecting a plurality of degassing modules. That is, the water to be treated that flows in from the inlet of the deaeration module arranged on the most upstream side flows into the ceiling surface side space portion and the end surface side space portion and flows into the ceiling surface side space portion. The treated water then flows into the connected deaeration module. On the other hand, for the water to be treated which has flowed into the end face side space through the circulation port, the granular floating bodies are swirled by the flow rate of the water to be treated. The loose rotation of the granular floating body prevents iron and the like from adhering to the end face and removes iron and the like already adhering to the end face. Then, the water to be treated flows into the module body and is evacuated when passing through the module body, the dissolved gas in the water to be treated is deaerated, and the treated water is treated by the module cap on the treated water side. It is supplied to the load side through the water outlet. Further, the granular floating body does not flow out of the end face side space because the flow port is formed by a small hole smaller than the granular floating body. Furthermore, it is also possible to provide a guide vane at a position opposite to the circulation port so that the granular floating body can be reliably turned freely. Furthermore, the partition member is provided in the treated water side module cap, and the granular floating body can be accommodated in the end face side space formed by the partition member in the same manner as described above.
[0018]
Next, a second embodiment that replaces the first embodiment will be described. The embodiment of the degassing module described here is capable of connecting a plurality of the module main bodies, and is fitted with module caps each having a flow port through which fluid flows at both ends of the module main body. In addition, a manifold having an inlet and an outlet through which fluid flows is fitted to both module caps, and a granular floating body is accommodated in each of the module caps. In addition, the flow port is formed with a plurality of small holes to prevent the granular floating body from flowing out. Furthermore, it is also possible to provide a guide vane at a position opposite to the circulation port so that the granular floating body can be reliably turned freely.
[0019]
Here, in a configuration in which a plurality of the deaeration modules are connected, it will be described that the manifold and the granular floating body are provided on one or both of the module caps. For example, a plurality of the module main bodies are connected, and the module is further connected. In some cases, the water to be treated introduced into the main body is alternately introduced from both ends of the module body. In the case of alternately introducing the water to be treated, the manifolds are respectively fitted to the both ends as in the second embodiment, and the granular floating bodies are accommodated in the respective module caps. In order to cope with the alternate introduction of water to be treated. Therefore, when introduction of water to be treated is limited to either one, either the manifold or the granular floating body may be accommodated. Moreover, since the deaeration process of to-be-processed water is the same as that of said 1st embodiment, description is abbreviate | omitted.
[0020]
As described above, the deaeration module according to the present invention prevents adhesion and growth of iron and the like on the end face of the module main body, facilitates connection of the deaeration module, and makes the entire apparatus compact.
[0021]
【Example】
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional explanatory view of a first embodiment schematically showing the structure of a deaeration module embodying the present invention, FIG. 2 is a front explanatory view of FIG. 1, and FIG. It is sectional explanatory drawing which shows the state which connected the several deaeration module (three in this Example).
[0022]
In FIG. 1, a degassing module 1 according to the present invention is basically fitted to a module main body 2 composed of an assembly of hollow fiber gas separation membranes and one end of the module main body 2 so that the water to be treated is A module cap 5 having an inflow port 3 and an outflow port 4 that circulates, and a treated water inlet 9 and a treated water outlet 10 that are fitted to the other end of the module body 2 and through which treated water circulates are provided. It is comprised by the treated water side module cap 11. FIG.
[0023]
As shown in FIGS. 1 and 2, the module cap 5 is fitted to one end of the module main body 2, so that the end surface 12 of the module main body 2 and the ceiling surface 13 of the module cap 5 are interposed. A space portion 14 is formed in the space. A partition member 7 is provided in the space portion 14 to partition the space portion 14 into the end surface 12 side and the ceiling surface 13 side, and the end surface side space is formed in the space portion 14 by the partition member 7. The part 15 and the ceiling surface side space part 16 are formed. The partition member 7 is provided with a circulation port 6 through which treated water flows. The circulation port 6 is formed by drilling a plurality of small holes smaller than the particle size of the granular floating body 8 accommodated in the end face side space 15 (see FIG. 2). And this circulation port 6 is arrange | positioned so that it may become a position corresponding to the said inflow port 3 (refer FIG. 2). Thereby, the inside of the space portion 14 is divided into two space portions by the partition member 7, and part of the treated water that has flowed in from the inflow port 3 is diverted from the flow port 6 to the end face side. It flows into the space 15. That is, the partition member 7 circulates the water to be treated that circulates in the space portion 14 into the deaeration module 1 that is circulated in the ceiling surface side space portion 16 and connected to the next stage. In addition, it is diverted as treated water into the end face side space portion 15 through the circulation port 6.
[0024]
And the said process water side module cap 11 is fitted to the other edge part of the said module main body 2, The other side end surface 17 of the said module main body 2 and the ceiling surface 18 of the said process water side module cap 11 by this fitting The other side space 19 is formed between the two. The other side space 19 serves as a flow path for the treated water, and the treated water flows out from the treated water outlet 10.
[0025]
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 10 are: A hole with a predetermined diameter is opened. When a plurality of the deaeration modules 1 are connected, as shown in FIG. 3, the outlet 4 of the module cap 5 and the treatment water side module cap 11 of the deaeration module 1 arranged first are treated. The water inlet 9 is opposed to 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, and a predetermined connecting means (for example, bolt tightening) Etc.). At this time, the flow port 6 of the partition member 7 is arranged at a position corresponding to the inflow port 3 as described above. Further, when a plurality of the deaeration modules 1 are connected, the outlet 4 and the treated water inlet 9 of the deaeration module 1 arranged on the most downstream side are sealed by appropriate means (detailed explanation is omitted). To do.)
[0026]
Here, the connection of the vacuum suction lines (reference numerals omitted) between the adjacent module bodies 2 will be described. The vacuum suction line is connected by connecting a first joint port 20 opened on one side and a 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, the suction cup type flow path bonding element 22 as shown in FIG. 4 (for details, see Japanese Patent Application No. 10-23851 relating to the patent application of the present patent applicant. Hereinafter, abbreviated as “bonding element 22”. )).
[0027]
That is, as shown in FIG. 3, the flow path guide portion 23 of the joining element 22 is inserted into the second joining port 21 of the deaeration module 1 arranged on the most upstream side (first). In this state, the first sucker portion 24 of the joining element 22 is adsorbed around the second joint port 21 so as to cover the second joint port 21, and the first degassing module 1 disposed second is used. The second suction cup portion 25 of the bonding element 22 is adsorbed around the bonding port 20 in a state of covering the first bonding port 20. Next, the second arrangement of the deaeration module 1 and the third arrangement of the deaeration module 1 are connected via the joining element 22 in the same procedure. The first joint 20 of the degassing module 1 arranged first is connected to a vacuum suction line (not shown) communicating with a vacuum pump (not shown), and the first degassing module 1 arranged third. The second joint 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.
[0028]
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 that flows from the inlet 3 of the degassing module 1 arranged first is divided into the ceiling surface side space portion 16 and the end surface side space portion 15. The water to be treated that has flowed into the ceiling-side space 16 passes through the inlet 3 of the deaeration module 1 arranged second through the outlet 4 of the first deaeration module 1. It flows in the same way. On the other hand, for the water to be treated which has flowed into the end face side space portion 15 through the circulation port 6, the granular floating body 8 is swirled by the flow velocity of the water to be treated. The loose rotation of the granular floating body 8 prevents iron and the like from adhering to the end surface 12 and removes iron and the like already adhering to the end surface 12. Then, the water to be treated flows into the module body 2 and is evacuated when passing through the module body 2, the dissolved gas in the water to be treated is deaerated, and the treated water is the module on the treated water side. It is supplied to the load side through the treated water outlet 10 of the cap 11. Further, the granular floating body 8 does not flow out of the end face side space portion 15 because the flow port 6 is formed by a small hole smaller than the granular floating body 8. Furthermore, as shown in FIG. 5, a guide vane 26 may be provided at a position facing the flow port 6 of the partition member 7 so as to ensure the loose turning of the granular floating body 8.
[0029]
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 this second embodiment, for example, the water to be treated to be introduced into the module main body 2 is used. Water may be alternately introduced from both ends, and the hollow fiber gas separation membrane may be backwashed. The second embodiment has a configuration corresponding to the backwashing. That is, the other side space portion 19 formed between the other end surface 17 of the module body 2 described in the first embodiment and the ceiling surface 18 of the treated water side module cap 11 is divided by the partition member 7. The end surface side space portion 27 and the 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 overlaps with that of the first embodiment, and thus detailed description thereof is omitted.
[0030]
Next, as another embodiment relating to the present invention, a first other example will be described with reference to FIG. Among the constituent members described in the first other example , members common to those described in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
[0031]
The first other example shown in FIG. 7 is made to connect a plurality of deaeration modules 1, and includes module caps 30, 30 each having a circulation port 29 through which fluid flows at the end of the module body 2. Each of the module caps 30 (in this first other example , in the upper part of FIG. 7), a box-like shape having an inlet 31 and an outlet 32 through which the water to be treated circulates. A manifold 33 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 circulation port 29 is formed by a plurality of small holes to prevent the granular floating body 8 from flowing out of the module cap 30. In the first other example , the flow port 29 is arranged to be at a position corresponding to the flow port 31 of the manifold 33, similarly to the flow port in the first embodiment, and Since the module cap 30 has a function similar to that of the partition member 7 in the first embodiment, the water to be treated that flows in from the inflow port 31 flows into the inflow port 29 and the module cap. The flow is divided into an inflow into a flow path 34 formed between the outer surface of 30 and the ceiling surface of the manifold 33. In this respect, this first other example is the one in which the module cap 30 substitutes the action of the partition member 7 described in the first embodiment. Detailed description is omitted.
[0032]
Next, as another embodiment related to the present invention, a second other example will be described with reference to FIG. In the first other example, 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 this second other example , the introduction direction of the water to be treated is two directions. (from above in FIG. 8 downwards, two directions from below upwards) is obtained by allowing changes alternately. That is, the manifold 33 described in the first other example is fitted to both the module caps 30, and the granular floating bodies 8 are accommodated in the both module caps 30, respectively. In this respect, since the deaeration process of the water to be treated overlaps with the first other example and the second example, detailed description thereof is omitted.
[0033]
【The invention's effect】
As described above, according to the deaeration module of the present invention, it is possible to prevent the adhesion and growth of iron and the like on the end surface of the module body, and to easily connect the deaeration module. Can also respond quickly. Furthermore, the entire 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 deaeration module embodying the present invention.
FIG. 2 is a front view of FIG.
3 is an explanatory cross-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 bonding element that connects the module main bodies shown in FIG. 3; FIG.
FIG. 5 is an enlarged cross-sectional explanatory view showing a state where guide vanes are attached to the partition member shown in FIG. 1;
FIG. 6 is an explanatory cross-sectional view schematically showing a configuration of a second embodiment of the present invention.
FIG. 7 is an explanatory cross-sectional view schematically showing a configuration of a first other example as another embodiment relating to the present invention .
FIG. 8 is an explanatory cross-sectional view schematically showing a configuration of a second other example as another embodiment relating to the present invention .
FIG. 9 is an explanatory cross-sectional view schematically showing a configuration of a conventional deaeration module.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Deaeration module 2 Module main body 3 Inlet 4 Outlet 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 surface 13 Ceiling surface 14 Space 15 End surface Side space part 16 Ceiling surface side space part
17 End face of the other side
18 Ceiling
19 Other side space part 20 1st joint port 21 2nd joint port
27 End side space
28 Ceiling side space

Claims (3)

A degassing module 1 for connecting and using a desired number according to a required amount of treated water, wherein an inlet 3 and an outlet 4 through which treated water circulates at one end of the module body 2 The provided module cap 5 is fitted, and a space portion 14 is formed between the ceiling surface 13 of the module cap 5 and the end surface 12 of the module main body 2, and the space portion 14 is formed in the space portion 14. A partition member 7 having a distribution port 6 for partitioning into an end surface 12 side and a ceiling surface 13 side is provided, and an end surface side space portion 15 and a ceiling surface side space portion 16 are formed in the space portion 14 by the partition member 7. Then, the granular floating body 8 is accommodated in the end face side space portion 15, and the treated water side including the treated water inlet 9 and the treated water outlet 10 through which treated water circulates at the other end of the module body 2. to fit the module cap 11 In order to make it possible to connect a plurality of the deaeration modules 1, the outlet 4 of the module cap 5 on the front stage and the inlet 3 of the module cap 5 on the next stage are opposed to each other. It connects so that it may connect, and the treated water outlet 10 of the said treated water side module cap 11 of the front | former stage side and the treated water inlet 9 of the said treated water side module cap 11 of the next stage are made to oppose. In addition, the connection of the vacuum suction lines between the adjacent module bodies 2 is performed by connecting the second joint port 21 of the module body 2 on the previous stage side and the first joint port 20 of the module body 2 on the next stage side. A deaeration module configured to be connected in a state of being opposed to each other . An other side space portion 19 is formed between the ceiling surface 18 of the treated water side module cap 11 and the other side end surface 17 of the module body 2, and the inside of the other side space portion 19 is formed in the other side space portion 19. A partition member 7 having a flow port 6 for partitioning into the other side end surface 17 side and the ceiling surface 18 side is provided, and the end surface side space portion 27 and the ceiling surface side space are provided in the other side space portion 19 by the partition member 7. The deaeration module according to claim 1, wherein a part 28 is formed and the granular floating body 8 is accommodated in the end face side space part 27 .   The deaeration module according to claim 1 or 2, wherein the circulation port (6) is formed by a plurality of small holes.

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