JP2016166672A - Valve element, filter and water supply equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide water supply equipment, and a valve element and a filter using the same, capable of automatically preventing reduction of an amount of through water when a filter is clogged.SOLUTION: Water supply equipment 100 includes a water-tight casing 10 having a water inlet 11 and a water outlet 12, a chlorine removal filter 30 disposed in the casing 10, filtering the water flowing into the casing 10 from the water inlet 11 and allowing the water to flow out from the water outlet 12, and a bypass passage (hollow portion 31) capable of communicating with the water inlet 11 and the water outlet 12 in a direct connection state. A valve element 50 is disposed for opening and closing the hollow portion 31 by opening/closing motion when a water pressure in the casing 10 rises and falls with respect to a predetermined working pressure. In a flow channel 52 of a main body portion 51 of the valve element 50, a pressure opening/closing valve 53 is disposed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a water supply device used as a means for purifying water, and a valve body and a filter used therefor.

  In order to purify tap water used in detached houses and apartment houses, various water purification means have been developed in the past. However, it is used in detached houses and apartment houses as related to the present invention. There is a water purifier having a function of purifying tap water collectively (for example, see Patent Documents 1 and 2). These water purifiers are installed between the water mains piped from the water supply facility and the branch piping to the water supply equipment in the house, and purify the tap water supplied to the house as a whole. is there.

  The "water purifier" described in Patent Document 1 has a function of securing the amount of chlorine contained in the tap water after passing while purifying and sterilizing the tap water passing through the water purifier. However, this “water purifier” has a complicated structure, and the replacement work of the filter is troublesome. Further, when the filter is clogged, there is a problem that the amount of water flowing out from the terminal water supply device is greatly reduced.

  On the other hand, the “water purifier” described in Patent Document 2 has a relatively simple structure, and the filter can be easily replaced. In addition, the residual chlorine concentration of tap water after passing through this "water purifier" can be adjusted with high accuracy, and even when the filter is clogged and the amount of permeate is reduced, it is necessary for the terminal water supply equipment. First-aid measures to secure water volume are possible.

JP 2002-59153 A JP 2009-119388 A

  As described above, the “water purifier” described in Patent Document 2 is superior to the “water purifier” described in Patent Document 1, but it is troublesome to adjust the residual chlorine concentration of tap water. It is not realistic for users to perform adjustment work. In addition, emergency measures are possible when the filter is clogged and the amount of permeated water is reduced, but the emergency measures need to be performed manually, so it is cumbersome and tends to be avoided. It is.

  Furthermore, in a house or the like where a conventional water purifier is installed, a water pipe piped downstream from the water purifier is in a state filled (or fluidized) with water having a lower chlorine concentration than tap water. For this reason, there are some opinions that are regarded as problematic in terms of ensuring sanitation in water pipes.

  Therefore, a problem to be solved by the present invention is to provide a water supply device capable of automatically avoiding a decrease in the amount of permeated water when the filter is clogged, and a valve body and a filter used therefor. .

  The valve body of the present invention comprises at least two openings and a main body having a flow path communicating with the openings, and a pressure opening / closing valve arranged to close the flow path, the pressure opening / closing When the hydraulic pressure applied to the valve rises or falls with a preset operating pressure as a boundary, the pressure on-off valve opens and closes.

  In the valve body, the set value of the operating pressure may be changeable.

  Next, the filter of the present invention is characterized by including a cylindrical filter having a hollow portion penetrating in the axial direction and the above-described valve body connected to the hollow portion.

  Further, the filter of the present invention includes a tubular filter having a hollow portion penetrating in the axial direction, a water passage that communicates the outer periphery of the tubular filter with the hollow portion, and a pressure disposed in the water passage. An on-off valve, and when the hydraulic pressure applied to the pressure on-off valve rises or falls with a preset operating pressure as a boundary, the pressure on-off valve opens and closes.

  The water supply device of the present invention includes a watertight casing having a water inlet and a water outlet, a filter that is disposed in the casing and that filters the water that flows into the casing from the water inlet and flows out from the water outlet. A bypass path that allows the water inlet and the water outlet to communicate with each other in a directly connected state, and opens and closes when the hydraulic pressure in the casing rises and falls with a preset operating pressure as a boundary. The above-described valve body having a function of opening and closing the path is provided.

  Here, a chlorine removal filter can be used as the filter.

  The bypass path can be disposed in the casing.

  Moreover, it is a cylindrical filter which has the hollow part which the said filter penetrates to an axial center direction, Comprising: The said hollow part can be used as the said bypass path, and the said valve body can be attached to the said hollow part.

  In this case, it is desirable that the valve body be detachable from the opening.

  On the other hand, a bypass path capable of communicating the water supply path connected to the water inlet and the water outlet path connected to the water outlet in a directly connected state is provided outside the casing, and the valve body described above is provided as the bypass path. It can also be provided.

  In this case, it is desirable that the valve body be detachable from the bypass path.

  Moreover, it is desirable that the operating pressure set in the valve body can be changed.

  Further, a sub-filter having at least one of a foreign substance removing function or a chlorine removing function for filtering water passing through the valve body or the bypass path is provided as a water flow path upstream or downstream of the pressure opening / closing valve of the valve body. It can also be arranged.

  In addition, a water injection path for mixing raw water before passing through the filter into water passing through the valve body or the bypass path is provided in the water flow path from the valve body to the water outlet. You can also.

  Furthermore, an uneven fitting mechanism that removably engages the casing and the valve body attached to the cylindrical filter can be provided in the casing and the valve body.

  A pressure opening / closing valve that opens at an opening operating pressure lower than the opening operating pressure of the pressure opening / closing valve of the valve body may be attached to the water injection channel.

  An uneven fitting mechanism that removably engages the casing and the valve body attached to the cylindrical filter can be provided in the casing and the valve body.

  The cylindrical sub-filter may be arranged in a circular cross section provided in at least a part of the water flow path upstream or downstream of the pressure opening / closing valve of the valve body.

  ADVANTAGE OF THE INVENTION By this invention, the water supply apparatus which can avoid automatically the fall of the permeated water amount when a filter is clogged, the valve body used for this, and a filter can be provided.

It is a front view which shows the water supply apparatus which is 1st Embodiment of this invention. It is a top view of the water supply apparatus shown in FIG. It is sectional drawing in the AA in FIG. It is sectional drawing which shows the water supply apparatus which is 2nd Embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is 3rd Embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is 4th Embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is 5th Embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is 6th Embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is a partially exploded sectional view which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the water supply apparatus which is other embodiment of this invention. It is sectional drawing which shows the filter which is embodiment of this invention.

  Hereinafter, based on FIGS. 1-14, the water supply apparatus 100,200,300,400,500,600 which is 1st-6th embodiment of this invention and the water supply apparatus which is other embodiment are demonstrated.

  As shown in FIGS. 1 to 3, a water supply device 100 according to a first embodiment of the present invention includes a watertight casing 10 having a water inlet 11 and a water outlet 12, and a watertight casing 10 disposed in the casing 10 from the water inlet 11. And a chlorine removal filter 30 for filtering water flowing into the casing 10 to flow out from the water outlet 12. When the hydraulic pressure in the casing 10 rises or falls with a preset operating pressure as a boundary, an opening / closing operation is performed. A valve body 50 is attached to an opening 31a above a hollow portion 31 of a chlorine removal filter 30 (hereinafter sometimes abbreviated as filter 30).

  Here, the dynamic water pressure refers to the flow of water in the casing 10 by opening a faucet (not shown) that is a water supply device arranged on the secondary side of the water supply device 100 and using water. The water flow pressure on the primary side of the filter 30 generated by the filter 30 or the water pressure on the primary side of the filter 30 that rises when water is about to enter the secondary side of the filter 30 when the filter 30 is clogged or the like. That is.

  As will be described later, a water supply device (not shown) with a large amount of outflow water such as washing water for a flush toilet disposed on the secondary side of the water supply device 100 is opened, or a plurality of water supply devices (not shown). ) At the same time, when a large amount of tap water flows into the casing 10 from the water supply pipe 60 through the water inlet 11, the dynamic water pressure on the primary side of the filter 30 increases. When a part of the water supply device arranged on the next side is closed or the amount of outflow water is reduced, and the amount of water flowing into the casing 10 from the water supply pipe 60 decreases, the dynamic water pressure decreases.

  Further, when the filter 30 is clogged or the like, the water pressure necessary for water to pass through the filter 30 increases, and this also increases the hydraulic pressure on the primary side of the filter 30. In addition, the pressure which raises in the casing 10 from the direction which the water supply apparatus of the secondary side of the filter 30 closes shall differ from the said dynamic water pressure. The pressure applied to the primary side and the secondary side of the filter 30 when the water supply device on the secondary side of the filter 30 is completely closed is a hydrostatic pressure.

  When the valve body 50 is opened, the water inlet 11 and the water outlet 12 can communicate with each other directly through the hollow portion 31 of the chlorine removal filter 30, and when the valve body 50 is closed, the water inlet 11 and the water outlet 12 are The state returns to the state of communication via the filter medium part 32 of the chlorine removal filter 30. That is, the hollow portion 31 of the chlorine removal filter 30 is used as a bypass path that allows the water inlet 11 and the water outlet 12 to communicate directly.

  The casing 10 includes a cylindrical main body 10a, and a circular bottom plate 13 and a lid body 14 that block the lower end portion and the upper end portion thereof, respectively. The lid 14 is detachably attached to the main body 10a by a plurality of screws 15. The water inlet 11 is provided near the center of the main body 10a in the axial direction, and the water outlet 12 is provided near the bottom plate 13 of the main body 10a. The water inlet 11 communicates with the inside of the casing 10, and an elbow 16 that is curved upward by 90 degrees is connected to the open end 12 a of the water outlet 12 in the casing 10. A filter 17 is attached to the water inlet 11 for removing solid foreign matters contained in tap water flowing into the casing 10 from the water supply pipe 60.

  The chlorine removal filter 30 is a cylindrical filter having a hollow portion 31 penetrating in the axial direction. A valve body 50 is attached to an opening 31 a above the hollow portion 31, and an opening 31 b below the hollow portion 31 is attached. The upper end 16a of the elbow 16 is inserted and connected. Although the valve body 50 can be attached to and detached from the chlorine removal filter 30, the valve body 50 and the chlorine removal filter 30 may be integrated. In addition, it can also be set as the structure which has arrange | positioned the valve body 50 in the opening part 31b below the hollow part 31. FIG.

  As shown in FIG. 3, the valve body 50 closes the flow path 52 and the main body 51 containing the two openings 52 a and 52 b and the flow path 52 that communicates the openings 52 a and 52 b. And a pressure open / close valve 53 that opens and closes when the hydraulic pressure applied to the pressure open / close valve 53 rises and falls with a preset operating pressure as a boundary.

  Specifically, the valve body 50 includes a rectangular parallelepiped main body 51, a flow path 52 formed so as to penetrate the main body 51 in an L shape, and the flow path 52 is closed in the flow path 52. And a pressure on / off valve 53 arranged so as to cross the flow path 52. One opening 52 a of the flow path 52 is arranged toward the inside of the casing 10, and the other opening 52 b protruding in a tubular shape from the main body 51 is formed in the opening 31 a above the hollow portion 31 of the chlorine removal filter 30. Insert connected. The pressure on / off valve 53 is disposed at a portion visible from the opening 52 a in the flow path 52.

  The opening 52 b of the valve body 50 is detachably inserted into the opening 31 a of the chlorine removal filter 30, and the upper surface 51 a of the main body 51 is in contact with the inner surface 14 a of the lid 14 of the casing 10. An operating pressure is set in advance in the pressure on / off valve 53 of the valve body 50, and when the hydraulic pressure in the casing 10 rises or falls with the operating pressure as a boundary, the pressure on / off valve 53 opens and closes. When the pressure on / off valve 53 is opened, water can flow in a one-way state from the opening 52a through the pressure on / off valve 53 toward the opening 52b.

  When using the water supply apparatus 100, as shown in FIG. 1, the water supply pipe 60 piped from the water supply source is connected to the water inlet 11, and the water outlet 12 is piped toward the area where tap water is used. Connected water pipe 61 is connected. The tap water flowing into the casing 10 from the water inlet 11 passes through the filter medium part 32 from the outer peripheral surface of the chlorine removal filter 30 and flows into the hollow part 31, and passes through the elbow 16 connected to the lower opening part 31b. Then, it flows out from the water outlet 12 and flows into the water pipe 61. When tap water passes through the filter medium part 32, chlorine and foreign substances are removed.

  When a water supply device provided at the end portion of the water pipe 61, for example, a faucet (not shown) such as a kitchen or a washroom with a relatively small amount of outflow water, is opened, the filter 30 in the casing 10 of the water supply device 100 As long as the primary hydraulic pressure does not exceed the operating pressure of the pressure on / off valve 53, the valve body 50 remains closed, so that the tap water flowing into the casing 10 from the water inlet 11 is the filter medium portion 32 of the chlorine removal filter 30. As a result, the water whose chlorine content has been reduced to a predetermined value (water having a lower chlorine concentration than tap water) flows out of the water supply device 100.

  On the other hand, when a water supply device (not shown) having a large amount of outflow water such as washing water for a flush toilet is opened or a plurality of water supply devices (not shown) are opened simultaneously, the water inlet 11 is provided from the water supply pipe 60. When a large amount of tap water flows into the casing 10 via, the dynamic water pressure on the primary side of the filter 30 in the casing 10 increases. When the dynamic water pressure at this time exceeds the operating pressure of the pressure opening / closing valve 53 of the valve body 50, the valve body 50 is opened, and the water inlet 11 and the water outlet 12 communicate with each other through the flow path 52 and the hollow portion 31. Therefore, the water in which tap water not filtered by the chlorine removal filter 30 is mixed (water having a chlorine concentration close to tap water) flows out from the outlet 12. Further, when the hydraulic pressure on the primary side of the filter 30 in the casing 10 decreases and the hydraulic pressure becomes equal to or lower than the operating pressure of the pressure opening / closing valve 53 of the valve body 50, the valve body 50 is closed again and the water inlet 11 It returns to the state where the communication with the water inlet 12 is blocked.

  In this way, when the amount of water used in the water supply equipment provided at the end portion of the water pipe 61 is small, water containing a small amount of chlorine filtered by the chlorine removal filter 30 is supplied, and when the amount of water used is large, chlorine removal is performed. Since water with a high chlorine content mixed with tap water that is not filtered by the filter 30 is supplied, the residual chlorine concentration can be automatically adjusted according to the amount of effluent water from the terminal water supply equipment.

  Further, the water supply device 100 supplies water having a chlorine concentration lower than that of tap water when the amount of water used by the terminal water supply device is small, and supplies water having a chlorine concentration close to tap water when the amount of water used is large. it can. That is, if a large amount of water is used in the water supply equipment at the end, water whose chlorine concentration is close to tap water flows in the water pipes piped from the water supply device 100 to the water supply equipment. The inside of the pipe can be kept hygienic.

  Further, when the chlorine removal filter 30 of the water supply device 100 is clogged and the amount of permeated water is reduced, the dynamic water pressure on the primary side of the filter 30 in the casing 10 increases, so that the dynamic water pressure is the pressure on / off valve 53 of the valve body 50. When the operating pressure is greatly exceeded, the valve body 50 is fully opened, and the water inlet 11 and the water outlet 12 communicate with each other via the flow path 52. As a result, tap water that compensates for the amount of permeated water that has been reduced due to clogging of the chlorine removal filter 30 flows into the hollow portion 31 via the flow path 52 of the valve body 50 and flows out of the water outlet 12. A decrease in the amount of permeated water caused can be automatically avoided.

  Although the chlorine removal filter 30 is disposed in the casing 10 of the water supply apparatus 100, a substance removal filter (not shown) that does not have a chlorine removal function may be disposed. Even when the substance removal filter is arranged, as described above, when the substance removal filter is clogged and the amount of permeate is reduced, the dynamic water pressure in the casing 10 is increased. When the dynamic water pressure at this time exceeds the operating pressure of the pressure opening / closing valve 53 of the valve body 50, the valve body 50 is fully opened, and the water inlet 11 and the water outlet 12 communicate with each other via the flow path 52. Accordingly, it is possible to automatically avoid a decrease in the amount of permeated water due to the clogging of the substance removal filter in the casing 10.

  Next, water supply devices 200, 300, 400, 500, and 600 that are second, third, fourth, fifth, and sixth embodiments of the present invention will be described with reference to FIGS. In addition, in the water supply apparatus 200,300,400,500,600 shown in FIGS. 4-8, about the part which is common with the water supply apparatus 100 mentioned above, the code | symbol same as the code | symbol shown in FIGS. 1-3 is attached | subjected. Description is omitted.

  In the water supply apparatus 200 shown in FIG. 4, the valve body 50x arrange | positioned in the casing 10 is provided with the adjustment dial 54 for changing the operating pressure set to the said valve body 50x. By operating the adjustment dial 54, the operating pressure can be set higher or lower, so that the usage conditions of the water supply device 200 (for example, the water pressure of the water supply source, the number of water supply devices at the end, It can correspond to the amount of water used). It is also possible to arrange the adjustment dial 54 outside the casing 10 and adjust the operating pressure from the outside, or to make the adjustment dial 54 electrically operated.

  Next, the water supply apparatus 300 which is 3rd Embodiment of this invention is demonstrated based on FIG. As shown in FIG. 5, in the water supply apparatus 300, the valve body 50y disposed in the casing 10 includes a flow path 52y that penetrates the body 51y in a rollover T shape, and the flow path 52y is described above. In addition to the two openings 52a and 52b, an opening 52c is provided. The opening 52c opens on the upper surface 51a of the main body 51y that is in contact with the inner surface 14a of the lid body 14. A filter 55 for removing foreign substances in tap water is detachably inserted from the upper surface 51a into the opening 52c.

  The filter 55 is inserted into a region extending from the opening end portion of the opening 52c (portion located on the upper surface 51a) to the portion where the three openings 52a, 52b, 52c intersect each other (rolling T-shaped intersection). ing. When the pressure on / off valve 53 is opened, the tap water that flows in through the opening 52a and passes through the pressure on / off valve 53 passes through the filter 55 to remove foreign matter, and then passes through the opening 52b to the hollow portion 31. Spill out towards.

  If the lid 14 is opened to expose the upper surface 51a of the main body 51y, the filter 55 can be attached to and detached from the opening 52c. Therefore, replacement work when the filtration performance of the filter 55 is reduced due to clogging or the like is easy. is there. Since the filter 55 has a cylindrical shape and a part of the flow path 52y into which the opening 52c and the filter 55 are inserted has a circular cross section, the filter 55 can be easily attached and detached.

  Next, the water supply apparatus 400 which is 4th Embodiment of this invention is demonstrated based on FIG. As shown in FIG. 6, in the water supply apparatus 400, the valve body 50z is provided with the flow path 52z which penetrates the inside of the main body 51z in a substantially T shape, and is formed on the opposite side of the opening 52a by 180 degrees. A pressure on / off valve 56 is disposed in the portion 52d. The operating pressure of the pressure on / off valve 56 is set lower than the operating pressure of the pressure on / off valve 53. The positional relationship between the opening 52a and the opening 52d is not limited to 180 degrees.

  In the water supply device 400, when the amount of water discharged from the water supply device provided at the end portion of the water pipe 61 is small, water with a small amount of contained chlorine filtered by the chlorine removal filter 30 is supplied, and when the amount of water discharged increases, First, the pressure on / off valve 56 is opened, and water with a little mixed tap water that is not filtered by the chlorine removal filter 30 is supplied. When the amount of discharged water further increases, the pressure on / off valve 53 is also opened and filtered by the chlorine removal filter 30. Water that contains a lot of untreated tap water is supplied.

  Next, the water supply apparatus 500 which is 5th Embodiment of this invention is demonstrated based on FIG. As shown in FIG. 7, in the water supply device 500, the water inlet 11 is provided at the center of the lid 14 above the casing 10, and the water outlet 12 is provided at the center of the lower bottom plate 13. In the cylindrical casing 10, a space defined by a pipe 72 arranged in the axial direction, panels 73 and 74 with nonwoven fabrics attached to the top and bottom of the pipe 72, and an inner peripheral surface 10 b of the casing 10. A chlorine removal filter 70 is formed by filling the granular activated carbon 70a inside.

  The chlorine removal filter 70 has a hollow portion 71 in a pipe 72 penetrating in the axial direction. A valve body 80 is attached to an opening 71 a above the hollow portion 71, and an opening 71 b below the hollow portion 71 is exposed. It faces the water inlet 12.

  The valve body 80 has a linear flow channel 82 that vertically penetrates the main body 81, and a pressure open / close valve 83 is disposed in the flow channel 82. The lower opening 82 b protruding in a tubular shape from the main body 81 is inserted and connected to the upper opening 71 a of the hollow part 71 of the chlorine removal filter 70, and the upper opening 82 a of the flow path 82 faces the water inlet 11. doing. The pressure on / off valve 83 is disposed in a portion visible from the opening 82 a above the flow path 82. The valve body 80 having the pressure opening / closing valve 83 can be attached to the opening 71 b below the hollow portion 71 of the chlorine removal filter 70 with the opening 82 b facing upward.

  In the water supply device 500, when the amount of water discharged from the water supply device provided at the end portion of the water pipe 61 is small, the pressure on / off valve 83 is closed, so that the tap water that has flowed into the casing 10 from the water inlet 11 is closed. After being filtered by the chlorine removal filter 70, the water containing a small amount of chlorine is discharged from the water outlet 12 and discharged from the terminal water supply device via the water pipe 61.

  The amount of water discharged from the water supply device at the end of the water pipe 61 is increased, and the dynamic water pressure in the upper part in the casing 10 (the part between the lid body 14 and the upper surface part 70b of the chlorine removal filter 70) is increased. When the operating pressure set in the above is exceeded, the pressure on / off valve 83 is opened, and water mixed with tap water (tap water that is not filtered by the chlorine removal filter 70) that flows out of the opening 82b and passes through the hollow portion 71 is discharged. It is supplied to the water pipe 61 from the water port 12. That is, when the pressure on-off valve 83 is opened, the hollow portion 71 of the filter 70 functions as a bypass path that allows the water inlet 11 and the water outlet 12 to communicate with each other in a directly connected state.

  Next, the water supply apparatus 600 which is 6th Embodiment of this invention is demonstrated based on FIG. As shown in FIG. 8, in the water supply apparatus 600, the water supply pipe 60 (water supply path) connected to the water inlet 11 of the casing 10 and the water pipe 61 (water outlet path) connected to the water outlet 12 are directly connected. A bypass path 62 that can communicate with the state is provided outside the casing 10. Further, a valve body 90 including a pressure opening / closing valve 91 is detachably disposed in the middle of the bypass path 62. When the dynamic water pressure in the casing 10 rises and falls with a preset operating pressure as a boundary, the pressure on / off valve 91 of the valve body 90 is opened / closed, whereby the bypass path 62 is communicated / blocked.

  Similarly to the water supply device 100 shown in FIG. 1, the chlorine removal filter 30 is also disposed in the casing 10 of the water supply device 600, but the water supply device 600 has an opening (not shown) above the chlorine removal filter 30. It is blocked in a watertight manner.

  In the water supply device 600, when a water supply device provided at the end portion of the water pipe 61, for example, a faucet (not shown) such as a kitchen or a washroom with a relatively small amount of outflow water, is opened. As long as the hydrodynamic pressure in the pipe 60 (in the casing 10) does not exceed the operating pressure of the pressure on-off valve 91, the valve body 90 remains closed. Therefore, the tap water that has flowed into the casing 10 from the water inlet 11 passes through the chlorine removal filter 30 and becomes water whose chlorine content is reduced to a predetermined value (water having a lower chlorine concentration than tap water). It flows out from 12 toward the water pipe 61.

  On the other hand, when a water supply device (not shown) having a large amount of outflow water such as washing water for a flush toilet is opened and a large amount of tap water flows into the casing 10 from the water supply pipe 60 via the water inlet 11, The hydrodynamic pressure on the primary side of the filter 30 increases. Thereby, when the dynamic water pressure in the water supply pipe 60 exceeds the operating pressure of the pressure on-off valve 91, the valve body 90 is opened, and the water supply pipe 60 and the water pipe 61 communicate with each other in a directly connected state via the bypass path 62. It becomes. As a result, water mixed with tap water that is not filtered by the chlorine removal filter 30 (water having a chlorine concentration close to tap water) is supplied to the water pipe 61. Further, when the dynamic water pressure in the casing 10 decreases and becomes equal to or lower than the operating pressure of the pressure opening / closing valve 91 of the valve body 90, the valve body 90 is closed and the bypass path 62 that directly connects the water supply pipe 60 and the water pipe 61 is blocked. Return to the completed state.

  In the case of the water supply device 600, since the valve body 90 is disposed in the bypass path 62 outside the casing 10, operations such as maintenance and replacement of the pressure on-off valve 91 are easy. Further, with respect to an existing water supply device (not shown) having a structure in which a chlorine removal filter 30 is disposed in a casing 10 having a water inlet 11 and a water outlet 12, a bypass path 62 and a valve as shown in FIG. The water supply device 600 can also be formed by providing the body 90.

  Next, water supply devices 100A, 100B, 300A, 400A, 400B, 500A, 600A, and 600B, which are other embodiments of the present invention, will be described with reference to FIGS. In addition, in the water supply apparatus 100A, 100B, 300A, 400A, 400B, 500A, 600A, 600B shown in FIG. 9 to FIG. 16, about the part common to the water supply apparatus 100, 200, 300, 400, 500, 600 described above, The same reference numerals as those shown in FIGS.

  In the water supply apparatus 100A shown in FIG. 9, in order to filter the water passing through the valve body 50, the flat columnar sub-filter 20 having a foreign matter removing function and a chlorine removing function is used for the pressure on-off valve 53 in the valve body 50. It arrange | positions so that attachment or detachment in the downstream flow path 52 is possible.

  When a water supply device (not shown) with a large amount of outflow water such as washing water for a flush toilet is opened or a plurality of water supply devices (not shown) are opened at the same time, the water supply pipe 60 passes through the water inlet 11. Then, when a large amount of tap water flows into the casing 10 and the dynamic water pressure on the primary side of the filter 30 in the casing 10 increases and exceeds the operating pressure of the pressure on / off valve 53, the valve body 50 opens. As a result, the tap water that has flowed into the casing 10 from the water inlet 11 passes through the pressure on / off valve 53, flows through the flow path 52, and flows into the hollow portion 31 of the chlorine removal filter 30.

  At this time, the tap water that has passed through the pressure open / close valve 53 passes through the sub-filter 20 and travels toward the hollow portion 31 of the chlorine removal filter 30, so that chlorine and solid foreign matters contained in the tap water are removed by the sub-filter 20. Then, it flows out from the water outlet 12 toward the water pipe 61. Therefore, even when the pressure on / off valve 53 is open, chlorine, solid foreign matters, etc. in tap water flowing out from the water outlet 12 toward the water pipe 61 can be removed.

  Since the location of the sub-filter 20 is not limited to a portion adjacent to the pressure on / off valve 53 in the flow path 52 on the downstream side of the pressure on / off valve 53, the flow on the upstream side of the pressure on / off valve 53 is shown in FIG. A portion P0 adjacent to the pressure on-off valve 53 in the passage 52, a portion P1 in the vicinity of the opening 52b of the flow passage 52, a position P2 in the vicinity of the opening 31b on the downstream side of the hollow portion 31 (bypass path) of the chlorine removal filter 30, or The sub-filter 20 can also be arranged at the position P3 of the opening of the water outlet 12 or the like.

  In the case where the sub filter 20 is arranged in the portion P0 adjacent to the pressure on / off valve 53 in the flow path 52 on the upstream side of the pressure on / off valve 53, solid foreign matters contained in water on the upstream side of the pressure on / off valve 53, etc. Is collected and removed, which is effective for protecting the pressure on / off valve 53.

  In the water supply apparatus 100B shown in FIG. 10, a short columnar convex portion 14b that protrudes into the casing 10 at the center of the inner surface 14a below the circular lid 14 that closes the upper end portion of the main body 10a of the casing 10. Is formed. On the upper surface 51a of the valve body 50B, a circular concave portion 52e into which the convex portion 14b can be fitted in a watertight manner is provided. The recess 52e communicates with the flow path 52 from the upper surface 51e, and is opened so as to be concentric with the opening 52b.

  As shown in FIG. 10, the valve body 50B is attached so as to insert the opening 52b into the opening 31a of the filter 30 accommodated in the casing 10, and the lid body 14 is attached to the recess 52e of the upper surface 51a of the valve body 50B. The lid body 14 is attached to the upper end portion of the main body 10a so as to insert the convex portion 14b.

  In the water supply apparatus 100B, as a concave / convex fitting mechanism that detachably engages the casing 10 and the valve body 50B attached to the chlorine removal filter 30, a recess 52e and a protrusion 14b that can be engaged and disengaged with each other are provided. Since it is provided, the valve body 50B can be easily attached and detached. If the inner diameter of the recess 52e is the same as the inner diameter size / shape of the opening 31a (that is, the outer diameter of the convex portion 14b is the same as the outer diameter of the opening 52b), only the chlorine removal filter 30 is used. And the center positioning of the filter 30 in the casing 10 is facilitated. Further, two or more valve bodies 50B can be connected and used.

  In the water supply apparatus 300A shown in FIG. 11, the sub-filter 55A is detachably inserted into the flow path 52y of the valve body 50y, and a lid is placed on the recess 52e formed between the upper surface of the sub-filter 55A and the opening 52c. The convex part 14b of the body 14 is engage | inserted so that engagement / disengagement is possible. Since the sub-filter 55A has a function of removing solid foreign matters and chlorine contained in the water, after passing through the pressure on-off valve 53, the solid foreign matters and chlorine etc. in the water passing through the sub-filter 55A are removed. be able to.

  In the water supply apparatus 300A, a recess 52e and a protrusion 14b that can be engaged and disengaged are used as an uneven fitting mechanism that removably engages the casing 10 and the valve body 50y attached to the chlorine removal filter 30. Since it is provided, not only the attachment / detachment of the valve body 50B but also the attachment / detachment of the sub-filter 55A to the valve body 50B is easy.

  In the water supply apparatus 400A shown in FIG. 12, the water flows into the hollow portion 31 (bypass path) through the pressure on-off valves 53 and 56 disposed in the valve body 50z, and flows into the water outlet 12 through the filter. A water injection path 16 b for mixing raw water before passing through 30 is provided in a part of the elbow 16.

  In the water supply apparatus 400A, the filter 30 is supplied from the water injection path 16b to the water that travels through the water passage (the flow path 52z, the hollow portion 31, the elbow 16, and the like) from the valve body 50z to the water outlet 12. Since raw water before passing can be mixed, chlorine of a predetermined concentration in the water from the outlet 12 toward the water pipe 61 can be contained.

  In the water supply apparatus 500 </ b> A shown in FIG. 13, in order to filter the water passing through the valve body 80, the flat columnar sub-filter 20 having a foreign matter removing function and a chlorine removing function is used. It arrange | positions so that attachment or detachment is possible in the part near the opening part 82b in the flow path 82 of the downstream. In addition, a water injection path 81 b is provided that communicates the flow path 82 between the pressure on-off valve 83 and the sub filter 20 and the outside of the valve body 80.

  Since the location of the sub-filter 20 is not limited to the portion near the opening 82b in the flow channel 82, the position P4 upstream of the pressure on-off valve 83 and the hollow portion 71 of the chlorine removal filter 70 are shown in FIG. The sub-filter 20 may be disposed at a position P4 in the vicinity of the opening 71b or a position P6 of the opening 12b on the bottom plate 13 side of the water outlet 12.

  Next, in the water supply apparatus 600 </ b> A shown in FIG. 14, the water injection path 16 b is opened in a part of the elbow 16, and the sub-filter is located at the position of the opening 62 a of the bypass path 62 at the connection portion between the bypass path 62 and the water pipe 61. 20 is arranged. A valve element 90 including a pressure on / off valve 91 is disposed in the middle of the bypass path 62. On the lower surface side of the lid body 14, a mixer 18 for raw water supply is detachably disposed.

  The mixer 18 has a flow path 18 a that passes through the mixer 18. A cylindrical protrusion 14b protruding from the center of the inner surface below the lid 14 can be fitted into the flow path 18a. Further, a water injection path 18b that communicates the outer periphery of the mixer 18 and the flow path 18a is provided. The mixer 18 is locked to the lower surface of the lid body 14 with the convex portion 14b on the lower surface of the lid body 14 fitted in the upper portion of the flow path 18a.

  At the lower end portion of the mixer 18, a short cylindrical projection 18 c having a diameter reduced in a stepped form than the other portions is formed. Since the outer diameter of the protrusion 18 c is equal to the inner diameter of the upper end opening 31 a of the filter 30, when the water supply apparatus 600 </ b> A is assembled, the mixer 18 is inserted into the upper opening 31 a of the filter 30 disposed in the casing 10. The protruding portion 18c is inserted.

  In the water supply apparatus 600A, tap water containing chlorine can be mixed into the water flowing into the water pipe 61 through the chlorine removal filter 30 through the water injection channels 16b and 18b. Further, when the dynamic water pressure in the casing 10 increases due to a large amount of water used, the solid filter or chlorine contained in the water flowing through the pressure on-off valve 91 and flowing into the water pipe 61 is filtered and removed by the sub-filter 20. Can do.

  In addition, in the water supply apparatus 600A, if a pressure on-off valve (not shown) having the same function as the pressure on-off valve 91 is arranged at the location of the water injection passages 16b, 18b, when the dynamic water pressure in the casing 10 increases, Tap water can be mixed into the elbow 16 or the flow path 18a through the pressure on-off valve.

  Further, as shown in FIG. 14, the location of the sub-filter 20 is not limited to the position of the opening 62 a of the bypass path 62 at the connection portion between the bypass path 62 and the water pipe 61. It can also be arranged at position P7 upstream of 91.

  Next, in the water supply apparatus 400 </ b> B shown in FIG. 15, the valve body 50 </ b> A is disposed between the chlorine removal filter 30 accommodated in the casing 10 and the bottom plate 13. Inside the valve body 50A, a T-shaped flow path 52 having three openings 52a, 52b, 52c is formed. A pressure on / off valve 53 is disposed in the flow path 52 on the opening 52a side. Cylindrical protrusions 52s and 52t are formed on the openings 52b and 52c, respectively.

  One protruding portion 52 s of the valve body 50 </ b> A is exposed to the outside of the bottom plate 13 while passing through the opening 13 a of the bottom plate 13. The other protrusion 52t of the valve body 50A is detachably inserted into the opening 31b below the chlorine removal filter 30. A convex portion 14 b on the lower surface of the lid body 14 is inserted into the opening 31 a above the chlorine removal filter 30.

  An elbow 16 having a water outlet 12 is connected to the protruding portion 52 s exposed to the outside from the opening 13 a of the bottom plate 13. A backflow prevention valve 11 a is disposed inside the water inlet 11. Air vent bolts 19b are screwed into the air vent holes 19a formed in the lid body 14.

  Next, in the water supply apparatus 600B shown in FIG. 16, the valve body 50A is attached in a state in which the protrusion 52t is inserted into the opening 31b below the chlorine removal filter 30 accommodated in the casing 10. The other protrusion 52s of the valve body 50A is inserted into one opening 24b of the piping component 24 having the L-shaped flow path 24a. The piping of the water outlet 12 is connected to the other opening 24 c of the piping component 24.

  The raw water tap mixing valve 22 is arranged in the middle of a bypass path 62 that allows the pipe on the water inlet 11 side and the pipe on the water outlet 12 side to communicate with each other in a directly connected state. By operating the operation lever 22a of the mixing valve 22 of the tap water, the tap water can be mixed with the filtered water flowing out from the outlet 12. The amount of raw water supply can be increased or decreased by changing the opening of the operation lever 22a.

  Next, based on FIG. 17, the chlorine removal filter 40 which is embodiment of this invention is demonstrated. As shown in FIG. 17, the chlorine removal filter 40 includes a cylindrical filter body 40 a having a hollow portion 41 penetrating in the direction of the axis 41 c, and a water passage 42 communicating the outer periphery of the filter body 40 a and the hollow portion 41. And a pressure open / close valve 43 disposed in the water passage 42. The cylindrical filter body 40 a has a filter medium part 44 arranged so as to surround the hollow part 41. The filter medium part 44 has a function of removing solids and chlorine.

  Similar to the pressure on / off valve 53 (see FIG. 3), the pressure on / off valve 43 opens / closes when the hydraulic pressure applied to the pressure on / off valve 43 rises / falls at a preset operating pressure. Has the function of closing.

  Since the filter 40 itself includes the pressure on / off valve 43, the pressure on / off valve 43 is opened when the hydraulic pressure on the primary side of the filter 40 exceeds a preset operating pressure, and the primary side of the filter 40 is opened. Water can be allowed to flow into the hollow portion 41 without passing through the filter medium portion 44 of the filter body 40a. Further, when the dynamic water pressure on the primary side of the filter 40 falls below a preset operating pressure, the pressure on / off valve 43 is closed and the inflow of water into the hollow portion 41 is stopped.

  In addition, the water supply apparatus 100,200,300,400,400B, 500,600,100A, 100B, 300A, 500A, 600A, 600B mentioned above and the valve bodies 50, 50A, 50B, 50x, 50y, 50z constituting these. , 80, 90, the chlorine removal filters 30, 40, 70 and the sub-filters 20, 55A are examples of the present invention, and the valve body, the filter and the water supply apparatus according to the present invention are the valve body 50, Limited to 50A, 50B, 50x, 50y, 50z, 80, 90, chlorine removal filter 30, 40, 70 or water supply equipment 100, 200, 300, 400, 500, 600, 100A, 100B, 300A, 500A, 600A, 600B Not.

  The valve body, filter, and water supply apparatus according to the present invention can be widely used as water purification means and components thereof.

DESCRIPTION OF SYMBOLS 10 Casing 10a Main body 10b Inner peripheral surface 11 Water inlet 11a Backflow prevention valve 12 Water outlet 12a Open end 13 Bottom plate 14 Cover body 14a Inner surface 14b, 14g Convex part 14c Protrusion part 14d Flow path 14e, 16b, 18b, 81b Water injection path 15 Screw 16 Elbow 16a Upper end portion 17, 40, 55 Filter 18 Mixer 18a, 24a, 52, 52y, 52z, 82 Flow path 18c, 52s, 52t Protruding portion 19a Air vent hole 19b Air vent bolt 20, 55A Sub filter 22 Mixing valve 22a Operation lever 24 Piping parts 30, 70 Chlorine removal filter 31, 41, 71 Hollow part 24c, 31a, 31b, 52a, 52b, 52c, 52d, 62a, 71a, 71b, 82a, 82b Opening part 32, 44 Filter medium part 40a Filter body 42 Water passage 43, 50 50B, 50x, 50y, 50z, 80, 90 Valve body 51, 51y, 81 Body 51a Upper surface 52e Recess 53, 56, 83, 91 Pressure on / off valve 54 Adjustment dial 60 Water supply pipe 61 Water pipe 62 Bypass path 70a Granular activated carbon 72 Pipe 73,74 Panel with nonwoven fabric 100,100A, 100B, 200,300,300A, 400,400A, 400B, 500,500A, 600,600A, 600B

Claims (17)

  A main body having at least two openings and a flow path communicating with the openings; and a pressure opening / closing valve arranged to close the flow path, and the hydraulic pressure applied to the pressure opening / closing valve is previously A valve element that opens and closes the pressure on / off valve when it rises or falls with a set operating pressure as a boundary.   The valve body according to claim 1, wherein a set value of the operating pressure is changeable.   The filter provided with the cylindrical filter which has the hollow part penetrated to an axial center direction, and the valve body of Claim 1 or 2 connected to the said hollow part.   A tubular filter having a hollow portion penetrating in the axial direction, a water passage communicating the outer periphery of the tubular filter and the hollow portion, and a pressure on-off valve disposed in the water passage, A filter that opens and closes the pressure on / off valve when the hydraulic pressure applied to the pressure on / off valve rises and falls with a preset operating pressure as a boundary.   A watertight casing having a water inlet and a water outlet; a filter disposed in the casing for filtering water flowing into the casing from the water inlet and flowing out from the water outlet; the water inlet and the water outlet And a bypass path capable of communicating directly with each other, and a function of opening and closing the bypass path by opening and closing when the hydraulic pressure in the casing rises and falls with a preset operating pressure as a boundary. A water supply apparatus provided with the valve body according to claim 1 or 2.   The water supply apparatus according to claim 5, wherein the filter is a chlorine removal filter.   The water supply apparatus of Claim 5 or 6 which has arrange | positioned the said bypass path | route in the said casing.   The cylindrical filter having a hollow portion through which the filter penetrates in the axial direction, wherein the hollow portion is used as the bypass path, and the valve body is attached to one opening portion of the hollow portion. A water supply apparatus according to any one of the above.   The water supply device according to claim 8, wherein the valve body is detachable from the opening.   The bypass path capable of communicating in a directly connected state with a water supply path connected to the water inlet and a water outlet path connected to the water outlet is provided outside the casing, and the valve body is provided in the bypass path. The water supply apparatus of Claim 5 or 6.   The water supply device according to claim 10, wherein the valve body is detachable from the bypass path.   The water supply device according to any one of claims 5 to 11, wherein an operating pressure set in the valve body is changeable.   A sub-filter having at least one of a foreign substance removing function and a chlorine removing function for filtering water passing through the valve body or the bypass path is disposed in a water flow path upstream or downstream of the pressure opening / closing valve of the valve body. The water supply apparatus according to any one of claims 5 to 12.   A water injection path for mixing raw water before passing through the filter into water passing through the valve body or the bypass path is provided in a water flow path from the valve body to the water outlet. Item 14. A water supply apparatus according to any one of Items 5 to 13.   The water supply device according to claim 14, wherein a pressure opening / closing valve that opens at an opening operating pressure lower than an opening operating pressure of the pressure opening / closing valve of the valve body is attached to the water injection channel.   In any one of Claims 8-15 which provided the uneven | corrugated fitting mechanism in the said casing and the said valve body which engages and disengages the said casing and the said valve body attached to the said cylindrical filter so that engagement / disengagement is possible. The water supply equipment described.   The cylindrical sub-filter is disposed in a circular cross section provided in at least a part of the upstream or downstream water flow path of the pressure opening / closing valve of the valve body. A water supply apparatus as described in the above section.

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