KR101805461B1 - Flange Device to Check Function of Checl Valve of Membrane - Google Patents

Abstract

The present invention relates to a flange device for inspecting the function of a membrane filtering plate check valve. The device comprises: a pipe combined with a membrane filtering body; a first flange having a circular shape and including a plurality of combination holes combined with the pipe; a plurality of combination bolts combining the first flange with a first short tube flange; the first short tube flange combined by the first combination bolts and comprising a plurality of bolt holes and a circular tap; a plate check valve combined between the first short tube flange and a second short tube flange; a transparent tube having a side inserted into the first flange through the first short tube flange, and having the other side inserted into the second flange through the second short tube flange; the second short tube flange penetrated by the transparent tube, combined with the second flange through the combination bolts, and including a circular tap; a second combination bolt combining the second flange through the bolt holes formed in the second short tube flange; the second flange including a plurality of bolt holes to be combined with the second short tube flange through the second combination bolt; and an air cleaning pipe combined with the second flange.

Description

[0001] Flange Device to Check Function of Check Valve Function [

The present invention is intended to easily confirm that leakage of water occurs due to deterioration of the plate check valve used for membrane filtration. The leakage of a conventional membrane plate check valve can be checked by a sound system, confirmed after disassembly, or confirmed by a drain valve. If the function is deteriorated, replacement work is performed, which is inefficient.

A conventional technique related to the present invention is disclosed in Korean Patent No. 10-0786776 (published on December 18, 2007). 1 is a block diagram of the conventional membrane filtration water treatment apparatus. 1, the conventional membrane filtration water treatment apparatus includes a raw water storage tank for storing raw water, a coagulant injection pump for supplying a coagulant, a raw water storage tank for temporarily storing raw water, and a coagulant injecting pump A mixing tank for mixing the raw water with the raw water mixed with the coagulant to mix the raw water with the raw water mixed with the raw water mixed with the coagulant from the mixing tank; A second membrane filtration device for performing a first water purification treatment on the corresponding raw water, a second membrane filtration device for performing a second water purification treatment on the effluent water supplied from the first membrane filtration device, A first membrane filtration device, a second membrane filtration device provided at a rear end of the coagulation bath or at a front end of the first membrane filtration device, A flow current meter SCD for measuring the flow current value SCV of the raw water flowing in the flow meter SCD and a flow current value SCV measured through the flow current meter SCD and a predetermined reference value set- and controlling the amount of the coagulant introduced into the mixing tank by controlling the coagulant injection pump according to the comparison result. The first membrane filtration apparatus may be a pressurized hollow fiber membrane, the second membrane filtration apparatus may be a submerged hollow fiber membrane, and the submerged hollow fiber membrane may be purified by the first membrane filtration apparatus A membrane module provided in the immersion tank and serving to purify wastewater in the immersion tank; and a membrane module provided at one side of the immersion tank to sense the height of the sludge in the immersion tank, And a sludge discharge valve for discharging the sludge in the immersion tank to the outside under the control of the control means. According to the prior art, the filtration rate can be improved by applying the two-stage membrane filtration process through the first and second membrane filtration apparatuses, and a flow current meter is provided at the front end of the first membrane filtration apparatus The flow rate of the raw water flowing into the first membrane filtration device through the flow current meter is measured, and the coagulant is administered to correspond to the measured flow current value, thereby effectively controlling the coagulant dosage. Therefore, the membrane filtration water treatment apparatus includes the raw water storage tank 101, the mixing tank 102, the flocculation tank 104, the first membrane filtration apparatus 105, the second membrane filtration apparatus 106, and the treatment tank 109 . The raw water storage tank 101 is a space for storing the raw water taken from a river or a lake. The mixing tank 102 receives raw water from the raw water storage tank 101 and temporarily stores the raw water, and is supplied from the coagulant infusion pump 103 Thereby providing a space in which the coagulant and the raw water are mixed. Here, the coagulant injection pump 103 may be provided at one side of the mixing tank 102. The flocculation tank 104 receives the raw water mixed with the flocculant from the mixing tank 102 and stirs the waste water to completely mix the raw water and the flocculant. Meanwhile, the above-mentioned conventional invention applies a two-step membrane filtration process to improve raw water recovery rate. The first membrane filtration device 105 and the second membrane filtration device 106 are configured to improve raw water recovery rate. The first membrane filtration device 105 uses a pressurized hollow fiber membrane, and the second membrane filtration device 106, It is preferable to use the immersible hollow fiber membrane. In addition, the first membrane filtration apparatus 105 using the pressurized hollow fiber membrane is supplied with raw water subjected to the coagulation-flocculation treatment from the flocculation tank 104 to produce purified water with a recovery rate of 90 to 95% To 10% is supplied to the second membrane filtration apparatus 106 as drain water (first concentrated sludge). Here, the treated water subjected to the purified water treatment is supplied to the treatment water tank 109. 2, the second membrane filtration apparatus 106 using the immersion hollow fiber membrane includes an immersion tank 201, a filtration suction pump (not shown), a membrane module 202, a sludge A detection sensor 203, and a sludge discharge valve 205. The immersion tank 201 is a space in which the effluent discharged from the first membrane filtration unit 105 is stored. The effluent water stored in the immersion tank 201 is supplied to the membrane module 202 through the filtration aspiration pump . The sludge sensor 203 is disposed at one side of the second membrane filtration device 106, and the sludge detection sensor 203 is disposed at one side of the second membrane filtration device 106, And serves to measure the sludge height in the immersion tank 201. When the sludge (second concentrated sludge) 204 is higher than a predetermined height in the immersion tank 201, the sludge is discharged to the outside through the sludge discharge valve 205. The treated water having passed through the membrane module 202 And is supplied to the treatment water tank 109. For reference, the process of the second membrane filtration apparatus 106 is carried out in the order of filtration-physical cleaning (backwashing, air cleaning, etc.) Lt; / RTI > 90 to 95% of the raw water (5 to 10% of the original raw water) introduced from the first membrane filtration unit 105 by the second membrane filtration unit 106 is subjected to a purification treatment and finally, The ratio of the purified water treated by the two-membrane filtration apparatuses 105 and 106 is 99 to 99.8%.

Fig. 2 is an installation state of a conventional plate check valve. In FIG. 2, when the function of the conventional plate check valve deteriorates, water is introduced from the plate check valve (A) to the air cleaning pipe (B) during the water supply process and the filtration process.

In the conventional membrane filtration water treatment apparatus configured as described above, a plate check valve is used, or a phenomenon in which water is introduced into the air cleaning pipe due to the deterioration of the plate check valve occurs, However, since it is cleaned with water and air, the backwash effect is deteriorated. Accordingly, an object of the present invention is to visually check the deterioration of the function of the plate check valve and to be able to replace it at an appropriate time.

According to the present invention, there is provided a flange device for checking the function of a membrane filter check valve, comprising: a pipe to be coupled to a filtration process pipe of a main body of a membrane filtration; a circular first flange having a plurality of fastening holes to be fastened to the pipe; A plurality of first fastening bolts for fastening the first flange to the first flange and a first flange for fastening the first flange to the first flange and a plurality of bolt holes formed by the plurality of first fastening bolts, A plate check valve which is fastened between the single pipe first flange and the single pipe second flange, and a plate check valve which is inserted from the outside of the plate check valve into the first flange through the single pipe first flange, 2 a transparent tube inserted into the inside of the flange, and a second tube having a circular tab which is passed through the transparent tube and fastened to the second flange by a plurality of fastening bolts, A second fastening bolt for fastening the second flange by a plurality of bolt holes formed in the short pipe second flange, and a second fastening bolt for fastening the second fastening bolt to the circular flange, A second flange, and an air cleaning pipe connected to the second flange.

Since the flange device for checking the function of the membrane filter check valve of the present invention having the above-described structure is capable of visually checking leakage, it is possible to accurately determine the replacement timing of the plate check valve. Further, another effect of the present invention is that the leak check can be accurately determined, the configuration is simple, and the installation cost is low.

1 is a block diagram of a conventional membrane filtration water treatment apparatus,
2 is a state in which the conventional membrane filter plate check valve is installed,
3 is a view showing the entire configuration of a flange device for checking the membrane filter check valve function of the present invention,
4 is an exploded perspective view of a flange device for checking the membrane filter check valve function of the present invention,
5 is a state in which the plate check valve is in a state in which the transparent pipe is removed.

A flange device for checking the function of the membrane filter check valve of the present invention having the above-described objects will be described with reference to FIGS. 3 to 6. FIG.

3 is a view showing a leakage state of a plate check valve applied to the present invention. 6, the plate check valve 360 according to the present invention is fastened between the first short pipe flange 340 and the second short pipe flange 370. When the function is deteriorated, the plate check valve 360 leaks outside the plate check valve, It is possible to reduce backwash efficiency by washing.

Fig. 4 is an overall configuration view of a flange device for checking the membrane filter check valve function of the present invention. 4, the flange device 300 for checking the function of the membrane filter plate check valve of the present invention includes a pipe 310 to be coupled to a filtration process pipe of a membrane filtration main body, A flange 320, a plurality of first fastening bolts 330 for fastening the first flange to the single-pipe first flange 330, a single-pipe first flange 340 fastened to the first fastening bolt 340, A plate check valve 360 which is fastened between the single pipe first flange and the single pipe second flange inside the transparent pipe 350, A plurality of second fastening bolts (380) for fastening the single pipe second flange and the second flange to each other and a second pipe fastening bolt (380) fastened to the second fastening bolt , A flange (390), and an "a" -shaped ball Which it will indicate that consists of the cleaning pipe 400 for. And a plurality of reinforcing bars for reinforcing the strength of the circular tab are formed on the circular tap.

5 is an exploded perspective view of a flange device for checking the membrane filter check valve function of the present invention. 5, the flange device for checking the membrane filter check valve of the present invention includes a pipe 310 to be coupled to a main body of membrane filtration, a circular first flange 320 having a plurality of fastening holes to be fastened to the pipe, A plurality of first fastening bolts 330 for fastening the first flange to the first flange and a plurality of bolt holes fastened by the first fastening bolts, A plate check valve 360 which is fastened between the single pipe first flange and the single pipe second flange and which has one side from the outside of the plate check valve 360 through the single pipe first flange 340, 1, a transparent tube 350 inserted into the flange and having the other end inserted into the second flange through the single-pipe second flange, and the other end of the transparent tube passes through and is fastened to the second flange by a plurality of fastening bolts The circular tab 372, A second fastening bolt 380 for fastening the second flange 390 by a plurality of bolt holes formed in the short pipe second flange 370 and a second fastening bolt 380 for fastening the second flange 390 to the second fastening bolt 380, A circular second flange 390 formed with a plurality of bolt holes to be fastened to the single pipe second flange, and an air cleaning pipe 400 fastened to the second flange. When the function of the plate check valve is deteriorated due to abrasion of the plate check valve, leakage of the plate check valve occurs, and it is immediately checked with naked eyes without any special equipment You can. The circular tab may include a plurality of reinforcing bars formed on the outer side thereof to increase the strength of the circular tab.

310: pipe, 320: first flange,
330: first fastening bolt, 340: single pipe first flange,
350: transparent tube, 360: check valve,
370: single pipe second flange, 380: second fastening bolt,
390: second flange, 400: air cleaning piping

Claims (5)

delete delete delete delete 1. A flange device for checking the membrane filter plate check valve function of a membrane filtration device,
The flange device for checking the membrane filter plate check valve function of the membrane filtration device,
A pipe 310 coupled to the filtration process piping of the membrane filtration body;
A first flange 320 having a plurality of bolt holes formed in the pipe;
A plurality of first fastening bolts (330) for fastening the first flange to the single pipe first flange (330);
A first flange 320 fastened to the first flange 320 by the first fastening bolt and having a circular tab 342 at one end thereof and a plurality of bolt holes formed at the outer side of the circular tab 330, 340;
A transparent pipe 350 outside the plate check valve 360, one side of which is inserted into the first flange through the single-pipe first flange and the other side thereof is inserted into the second flange through the single-pipe second flange;
A plate check valve 360 which is fastened between the single-pipe first flange and the single-pipe second flange in the transparent tube and is washed with water and air so that the backwash effect is inferior when the function is deteriorated;
A second end flange 370 having a circular tab 372 and a plurality of reinforcing bars and bolt holes formed on the outer side of the circular tap, which is fastened to the second flange by a plurality of fastening bolts through the other end of the transparent tube, ;
A plurality of second fastening bolts (380) for fastening the single pipe second flange and the second flange;
A circular second flange 390 formed with a plurality of bolt holes to be fastened to the plurality of second fastening bolts;
And a "a" air cleaning pipe (400) which is fastened to the second flange.

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