WO2022137937A1 - 弁装置 - Google Patents
弁装置 Download PDFInfo
- Publication number
- WO2022137937A1 WO2022137937A1 PCT/JP2021/042767 JP2021042767W WO2022137937A1 WO 2022137937 A1 WO2022137937 A1 WO 2022137937A1 JP 2021042767 W JP2021042767 W JP 2021042767W WO 2022137937 A1 WO2022137937 A1 WO 2022137937A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- float
- base
- valve seat
- seat
- Prior art date
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- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 9
- 238000013459 approach Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
- F16T1/22—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats of closed-hollow-body type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K33/00—Floats for actuation of valves or other apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
Definitions
- the technology disclosed here relates to valve devices.
- a valve device in which a float is provided in the valve chamber is disclosed.
- the float moves up and down according to the amount of drain in the valve chamber to open and close the valve hole.
- the float When closing the valve hole, the float not only sits on the valve seat, but also on the float seat. As a result, the state in which the float closes the valve hole is stably maintained.
- the float seat plays an important function for the float to be stably seated on the valve seat. Therefore, if the position accuracy of the float seat is lowered, the stability of the float seating on the valve seat may be lowered.
- the technique disclosed here was made in view of this point, and its purpose is to improve the stability of the float seating on the valve seat.
- the valve device disclosed here is provided in a casing in which a valve chamber is formed, a valve seat provided in the valve chamber and having a valve hole, and provided in the valve chamber according to the amount of drain in the valve chamber.
- a float that moves to open and close the valve hole and a support portion that is seated on the valve seat and supports the float in a state where the valve hole is closed are provided, and the support portion has an opening and has a frame shape. It has a base formed in the base and two float seats provided on the base and on which the float seated in the valve seat with the valve hole closed.
- the stability of the float seating on the valve seat can be improved.
- FIG. 1 is a cross-sectional view showing a schematic configuration of a valve device.
- FIG. 2 is a perspective view of the second part.
- FIG. 3 is a view of the base viewed from the axial direction of the valve hole of the valve seat.
- FIG. 4 is a cross-sectional view showing a valve closed state of the valve device.
- FIG. 5 is a cross-sectional view showing a valve open state of the valve device.
- FIG. 1 is a cross-sectional view showing a schematic configuration of the valve device 100.
- the valve device 100 is a float type valve device.
- the valve device 100 is provided in the casing 1 in which the valve chamber 14 is formed, the valve seat 2 provided in the valve chamber 14 and having the valve hole 21, and the amount of drain in the valve chamber 14. It includes a float 3 that moves accordingly to open and close the valve hole 21, and a support portion 4 that supports the float 3 that sits on the valve seat 2 and closes the valve hole 21.
- the valve device 100 is a drain trap (also referred to as a steam trap or gas trap).
- the fluid flowing into the valve device 100 is drain (condensate) and steam.
- the valve device 100 allows the passage of drain while blocking the passage of steam. That is, the float 3 is configured to open the valve hole 21 while the drain is flowing into the casing 1, while closing the valve hole 21 when steam flows into the casing 1.
- the casing 1 has a divided structure of a first portion 11 and a second portion 12.
- the first portion 11 and the second portion 12 are fastened with bolts to form a closed container.
- a valve chamber 14 is formed inside the casing 1. That is, the first portion 11 and the second portion 12 partition the valve chamber 14.
- the first portion 11 has an opening 11a that opens the valve chamber 14 laterally.
- the second portion 12 is attached to the first portion 11 so as to close the opening 11a.
- the casing 1 has a ceiling wall 17 for partitioning the valve chamber 14, a bottom wall 18, and a side peripheral wall 19 for connecting the ceiling wall and the bottom wall 18.
- the first portion 11 includes a part of the ceiling wall 17, the bottom wall 18, and the side peripheral wall 19.
- the second portion 12 includes the rest of the side peripheral wall 19.
- An opening 11a is formed in a portion of the side peripheral wall 19 included in the first portion 11. The opening 11a is open to the side.
- the first portion 11 is formed with an inflow port 13 through which a fluid flows from the outside of the casing 1 into the valve chamber 14.
- the inflow port 13 is formed so as to penetrate the ceiling wall 17 up and down.
- the bottom wall 18 of the second portion 12 and the first portion 11 is formed with an outflow passage 15 and an outflow outlet 16 through which the fluid flows out from the valve chamber 14 to the outside of the casing 1. That is, the outflow path 15 is continuously formed from the second portion 12 to the bottom wall 18. The upstream end of the outflow passage 15 is formed in the second portion 12 and opens to the lower part of the valve chamber 14. The downstream end of the outflow path 15 is the outflow port 16. The outlet 16 opens downward in the bottom wall 18. The axis of the inlet 13 and the axis of the outlet 16 extend substantially coaxially in the vertical direction.
- a fluid flow path is formed in the casing 1 by an inflow port 13, a valve chamber 14, an outflow path 15, and an outflow port 16.
- the fluid flows into the valve chamber 14 from the inflow port 13, passes through the valve chamber 14, passes through the outflow passage 15, and flows out from the outflow port 16.
- the valve seat 2 is provided in the second part 12.
- the valve seat 2 is provided at the upstream end of the outflow passage 15 in the valve chamber 14. That is, the valve seat 2 is provided in the lower part of the valve chamber 14.
- the valve seat 2 is screwed to the upstream end of the outflow passage 15.
- the valve seat 2 is formed with a valve hole 21 for communicating the valve chamber 14 and the outflow passage 15.
- the float 3 functions as a valve body that opens and closes the valve hole 21.
- the float 3 is formed in a hollow substantially spherical shape.
- the float 3 is movably housed in the valve chamber 14.
- the float 3 floats on the drain in the valve chamber 14. Therefore, the float 3 moves in the vertical direction according to the amount of drain in the valve chamber 14.
- the support portion 4 has an opening 43, a base 41 formed in a frame shape, and two floats provided on the base 41 and seated on the valve seat 2 with the valve hole 21 closed. It has a seat 42.
- the valve seat 2 and the two float seats 42 support the float 3 with the valve hole 21 closed at three points.
- the base 41 is cantilevered in the second portion 12. That is, one end of the base 41 is connected to the second portion 12, and the other end of the base 41 is a free end. Specifically, the base 41 extends inward of the valve chamber 14 from the portion of the second portion 12 below the valve seat 2. More specifically, the base 41 is formed of a second portion 12 and a single member. For example, the second portion 12 and the base 41 are integrally formed by casting.
- the base 41 faces the bottom wall 18 and is arranged so as to form a gap between the base 41 and the bottom wall 18.
- the base 41 is arranged below the float 3 in the valve chamber 14.
- the two float seats 42 are provided at the tip of the base 41.
- the two float seats 42 are provided on the surface of the base 41 facing the float 3.
- the valve seat 2 and the two float seats 42 are arranged to form a triangle in order to realize the three-point support of the float 3.
- the casing 1 may be provided with a screen 51 for removing foreign matter from the fluid flowing into the valve chamber 14, and a bimetal 52 for forcibly opening the float 3 when the valve device 100 is started.
- the screen 51 is provided in the first portion 11.
- the screen 51 is arranged in the valve chamber 14 in the vicinity of the inflow port 13.
- the screen 51 is made of a mesh-like member and is configured to allow fluids such as drain and steam to pass through.
- the bimetal 52 is provided in the second portion 12. One end of the bimetal 52 is fixed to the second portion 12, and the other end of the bimetal 52 is a free end.
- the bimetal 52 has an overall curved shape.
- the bimetal 52 is deformed according to the temperature of the bimetal 52. When the bimetal 52 is at a low temperature, the free end of the bimetal 52 is located near the valve seat 2 and slightly away from the valve seat 2. The free end of the bimetal 52 at this position separates the float 3 from the valve seat 2. When the bimetal 52 is hot, the free end of the bimetal 52 is located close to the valve seat 2. The free end of the bimetal 52 at this position does not prevent the float 3 from sitting on the valve seat 2.
- FIG. 2 is a perspective view of the second portion 12.
- FIG. 3 is a view of the base 41 as viewed facing the axial direction of the valve hole 21 of the valve seat 2.
- the base 41 is generally formed in a fan shape and is curved so as to be recessed toward the bottom wall 18. More specifically, the base 41 has two arms 44 extending from the second portion 12 and a plate 45 connecting the two arms 44. A float seat 42 is provided at the tip of each arm 44. A substantially circular opening 43 is formed through the plate 45.
- the two arms 44 that is, the two float seats 42, are arranged at intervals in the circumferential direction about the axis of the valve hole 21.
- Each arm 44 extends inward of the valve chamber 14 from the second portion 12. That is, one end of each arm 44 in the extending direction is connected to the second portion 12, and the other end of each arm 44 in the extending direction is a free end inside the valve chamber 14.
- Each arm 44 is curved so as to be recessed toward the bottom wall 18.
- Each arm 44 is formed thicker than the plate 45.
- the float seat 42 is provided on the surface of the tip of each arm 44 facing the float 3.
- the plate 45 is connected over the entire area from one end to the other end of each arm 44 in the extending direction.
- the plate 45 is formed so as to be recessed toward the bottom wall 18.
- the arm 44 and the plate 45 are curved so as not to come into contact with the valve seat 2 and the float 3 seated on the two float seats 42.
- FIG. 4 is a cross-sectional view showing a valve closed state of the valve device 100.
- FIG. 5 is a cross-sectional view showing a valve opened state of the valve device 100.
- the valve device 100 is provided, for example, in the piping of a steam system. Steam and drain flowing through the pipe flow into the valve device 100.
- the temperature of the bimetal 52 is relatively low, and the free end of the bimetal 52 is located at a position away from the valve seat 2 as shown in FIG.
- the float 3 is in a state of being forcibly opened by preventing the float 3 from being seated on the valve seat 2 by the bimetal 52.
- the air in the pipe that is, the initial air
- the low temperature drain flows into the valve chamber 14 of the valve device 100
- the initial air or the low temperature drain flows from the valve device 100 through the valve hole 21 and the outflow passage 15. It will flow out.
- the initial air or low temperature drain that has flowed into the valve device 100 is quickly discharged from the valve device 100.
- the initial air or the fluid such as the low temperature drain that has flowed in from the inflow port 13 first passes through the screen 51. At this time, the screen 51 removes foreign matter from the fluid.
- the float 3 descends as the drain decreases, sits on the valve seat 2 and closes the valve hole 21 as shown in FIG. As a result, the outflow of drain from the valve device 100 is stopped. At this time, the float 3 sits on the float seat 42 in addition to the valve seat 2. The float 3 is supported at three points by the valve seat 2 and the two float seats 42 with the valve hole 21 closed. In this state, even if steam flows into the valve chamber 14, the valve hole 21 is immersed in the drain and the valve hole 21 is closed by the float 3, so that the steam flows through the valve hole 21 and the valve device 100. Does not leak from.
- the float 3 moves up and down according to the amount of drain in the valve chamber 14, and the valve hole 21 is opened and closed.
- the drain intermittently passes through the valve device 100.
- the steam is blocked from passing through the valve device 100 both when the valve is opened and when the valve is closed.
- the two float seats 42 of the support portion 4 support the float 3 in a state where the valve seat 2 is seated and the valve hole 21 is closed, together with the valve seat 2. As a result, the state in which the float 3 closes the valve hole 21 is stably maintained.
- the two float seats 42 are provided on the base 41 formed in a frame shape. Since the base 41 is formed in a frame shape, it has a relatively high rigidity. Therefore, the deformation of the base 41 can be reduced, and the positions of the two float seats 42 can be maintained with high accuracy. For example, an external impact may act on the valve device 100 during transportation of the valve device 100. Even in such a case, since the base 41 is formed with high rigidity, it is difficult to be deformed. Therefore, when incorporating the valve device 100 into the piping of the steam system or the like, it is not necessary to deform the base 41 and adjust the positions of the two float seats 42.
- the above-mentioned support portion 4 is provided in the second portion 12 attached to the first portion 11 from the side so as to close the valve chamber 14 opened to the side.
- the configuration of is valid.
- the positional relationship between the valve seat 2 and the float seat is the first portion 11 and the second portion 12. It is greatly affected by the mounting accuracy of.
- the positional relationship between the valve seat 2 and the two float seats 42 is that of the first portion 11 and the second portion 12. Not affected by mounting accuracy.
- valve seat 2 and the two float seats 42 have high positional accuracy in the state before the second portion 12 is attached to the first portion 11, after the second portion 12 is attached to the first portion 11. However, the valve seat 2 and the two float seats 42 maintain high positional accuracy. Further, in this example, since the second portion 12 and the support portion 4 are formed of a single member, the positional relationship between the valve seat 2 and the two float seats 42 is maintained with higher accuracy.
- the two float seats 42 are provided. It is necessary to arrange it at a position some distance from the valve seat 2 (specifically, a position formed by the valve seat 2 and the two float seats 42 so that a triangle that can stably support the float 3).
- a position is conceivable in which a float seat is provided on each of the two beams extending in a cantilever shape from the second portion 12.
- the base 41 extending in a cantilever shape from the second portion 12 is formed in a frame shape, and the base 41 is provided with two float seats 42.
- the rigidity of the base 41 can be improved as compared with a simple beam.
- the position of the float seat 42 can be maintained with high accuracy even if the base 41 is provided in a cantilever shape on the second portion 12.
- the base 41 has a plate 45 for connecting the two arms 44 extending from the second portion 12 and the two arms 44.
- a float seat 42 is provided on each of the two arms 44, and the arm 44 is formed to be thicker than the plate 45.
- the rigidity of the portion of the base 41 where the float seat 42 is provided (that is, the arm 44) can be improved, and the position of the float seat 42 can be maintained with higher accuracy.
- the plates 45 are connected over the entire extending direction of each arm 44. As a result, the overall rigidity of the base 41 is improved, and the position of the float seat 42 can be maintained with higher accuracy.
- valve seat 2 and the two float seats 42 are stably seated by forming the opening 43 in the base 41. Can be done.
- the amount of drain in the valve chamber 14 is reduced and the amount of drain is small.
- the undulation of the drain can be reduced. That is, by forming the opening 43 in the base 41, the drain can pass through the opening 43 around the base 41.
- the base 41 functions as a larger flow resistance in the valve chamber 14 and can slow the flow of drain around the base 41. This reduces the waviness of the drain. As a result, the swing of the float 3 when the float 3 approaches the valve seat 2 and the two float seats 42 is reduced, and the float 3 can be stably seated on the valve seat 2 and the two float seats 42. can.
- the base 41 is arranged below the float 3. Therefore, when the float 3 approaches the valve seat 2 and the two float seats 42, the liquid level of the drain and the base 41 approach each other.
- the effect of the base 41 functioning as a flow resistance to reduce the waviness of the drain becomes greater as the base 41 is closer to the liquid level of the drain.
- the need to reduce the undulation of the drain is also great when the amount of drain is reduced and the float 3 approaches the valve seat 2 and the two float seats 42. That is, the base 41 can more effectively reduce the undulations of the drain when necessary. As a result, the float 3 can be stably seated on the valve seat 2 and the two float seats 42.
- the base 41 faces the bottom wall 18 and is arranged so as to form a gap between the base 41 and the bottom wall 18, the space above the base 41 and the space below the base 41 open an opening 43. Communicate through. Therefore, the amount of drain flowing between the base 41 and the bottom wall 18 increases.
- the base 41 and the bottom wall 18 function as a flow resistance of the drain flowing between the base 41 and the bottom wall 18. That is, when the amount of drain flowing between the base 41 and the bottom wall 18 increases, the flow of the drain becomes slower and the undulation of the drain is further reduced.
- the valve device 100 is provided in the casing 1 in which the valve chamber 14 is formed, the valve seat 2 provided in the valve chamber 14 and having the valve hole 21, and in the valve chamber 14, and is provided in the valve chamber 14.
- the float 3 is provided with a float 3 that moves according to the amount of drainage to open and close the valve hole 21, and a support portion 4 that is seated on the valve seat 2 and supports the float 3 in a state where the valve hole 21 is closed.
- a base 41 having an opening 43 and formed in a frame shape, and two float seats 42 provided on the base 41 and seated on the valve seat 2 with the valve hole 21 closed. Has.
- the float 3 with the valve hole 21 closed is supported at three points by the valve seat 2 and the two float seats 42.
- the base 41 provided with the two float seats 42 has a high rigidity because it is formed in a frame shape. Therefore, the positions of the two float seats 42 are maintained with high accuracy. As a result, the positional relationship between the valve seat 2 and the two float seats 42 is maintained with high accuracy, so that the stability of seating of the float 3 on the valve seat 2 can be improved.
- the base 41 since the base 41 has an opening 43, the drain can pass through the opening 43 and circulate, and the function of the base 41 as a distribution resistance is increased.
- the base 41 can reduce the undulation of the drain, and the swing of the float 3 when the float 3 is seated on the valve seat 2 and the two float seats 42 is reduced. As a result, the stability of seating of the float 3 on the valve seat 2 can be further improved.
- the casing 1 has a divided structure of a first portion 11 and a second portion 12, the first portion 11 and the second portion 12 partition the valve chamber 14, and the valve seat 2 is the second portion.
- the base 41 is provided on the second portion 12 in a cantilever manner.
- the positional relationship between the valve seat 2 and the two float seats 42 is the first portion 11 and the second portion 12. It is maintained with high accuracy without being affected by the mounting accuracy of.
- the base 41 is cantilevered in the second portion 12, it becomes easy to secure a distance between the valve seat 2 and the two float seats 42. Even if the base 41 is cantilevered in the second portion 12, the position accuracy of the two float seats 42 can be ensured by forming the base 41 in a frame shape.
- first portion 11 has an opening 14a that opens the valve chamber 14 laterally, and the second portion 12 is attached to the first portion 11 so as to close the opening 14a.
- a configuration in which the base 41 is provided in the second portion 12 in a cantilever manner is particularly effective.
- a cantilevered configuration in which the base 41 is provided in the second portion 12 it becomes easy to realize a configuration in which the two float seats 42 are arranged in the valve chamber 14.
- the casing 1 has a ceiling wall 17 for partitioning the valve chamber 14, a bottom wall 18, and a side peripheral wall 19 for connecting the ceiling wall 17 and the bottom wall 18, and the first portion 11 has a ceiling wall 17 and a bottom.
- a second portion 12 includes a portion of the wall 18 and a side peripheral wall 19, the second portion 12 includes the remaining portion of the side peripheral wall 19, and an opening 14a is formed in a portion of the side peripheral wall 19 included in the first portion 11 to form a base.
- 41 is arranged so as to face the bottom wall 18 and form a gap between the bottom wall 18 and the bottom wall 18.
- the cantilevered base 41 provided in the second portion 12 is arranged so as to face the bottom wall 18 included in the first portion 11. Then, a gap is formed between the base 41 and the bottom wall 18. Since the base 41 is provided with the opening 43, the drain flows through the opening 43 between the space above the base 41 and the gap between the base 41 and the bottom wall 18. In the gap between the base 41 and the bottom wall 18, the base 41 and the bottom wall 18 function as flow resistance. Therefore, the flow of the drain around the base 41 becomes slower, and the waviness of the drain is further reduced. As a result, the swing of the float 3 is further reduced, and the stability of seating of the float 3 on the valve seat 2 is further improved.
- valve device 100 is not limited to the drain trap.
- the valve device 100 may be a float type valve device provided with a float.
- valve device 100 is configured to be connected to the vertical pipe, but the valve device 100 is not limited to this.
- the valve device 100 may be configured to be connected to a horizontal pipe with the inlet 13 and the outlet 16 opening laterally.
- the base 41 has two arms 44 and a plate 45, but is not limited thereto.
- the base 41 may be formed of a frame having a uniform thickness.
- the base 41 may not have a configuration in which the two arms 44 are totally connected by the plate 45, but may have a configuration in which the tip portions and the like of the two arms 44 are connected by a beam-shaped member.
- the position of the float seat 42 is not limited to the tip of each arm 44.
- the float seat 42 is of the base 41 as long as the valve seat 2 and the two float seats 42 can support the float 3 at three points, that is, as long as the valve seat 2 and the two float seats 42 can form a triangle. It can be placed in any position.
- the float seat 42 may be arranged on the plate 45.
- Valve device 1 Casing 11 1st part 12 2nd part 14 Valve chamber 14a Opening 17 Ceiling wall 18 Bottom wall 19 Side peripheral wall 2 Valve seat 21 Valve hole 3 Float 4 Support part 41 Base 42 Float seat 43 Opening
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Abstract
Description
以上のように、本出願において開示する技術の例示として、前記実施形態を説明した。しかしながら、本開示における技術は、これに限定されず、適宜、変更、置き換え、付加、省略などを行った実施の形態にも適用可能である。また、前記実施形態で説明した各構成要素を組み合わせて、新たな実施の形態とすることも可能である。また、添付図面および詳細な説明に記載された構成要素の中には、課題解決のために必須な構成要素だけでなく、前記技術を例示するために、課題解決のためには必須でない構成要素も含まれ得る。そのため、それらの必須ではない構成要素が添付図面や詳細な説明に記載されていることをもって、直ちに、それらの必須ではない構成要素が必須であるとの認定をするべきではない。
1 ケーシング
11 第1部分
12 第2部分
14 弁室
14a 開口
17 天井壁
18 底壁
19 側周壁
2 弁座
21 弁孔
3 フロート
4 支持部
41 ベース
42 フロート座
43 開口
Claims (4)
- 弁室が形成されたケーシングと、
前記弁室に設けられ、弁孔を有する弁座と、
前記弁室内に設けられ、前記弁室内のドレンの量に応じて移動して前記弁孔を開閉するフロートと、
前記弁座に着座して前記弁孔を閉じた状態の前記フロートを支持する支持部とを備え、
前記支持部は、開口を有し、枠状に形成されたベースと、前記ベースに設けられ、前記弁座に着座して前記弁孔を閉じた状態の前記フロートが着座する2つのフロート座とを有する弁装置。 - 請求項1に記載の弁装置において、
前記ケーシングは、第1部分と第2部分との分割構造となっており、
前記第1部分及び前記第2部分は、前記弁室を区画し、
前記弁座は、前記第2部分に設けられ、
前記ベースは、前記第2部分に片持ち状に設けられている弁装置。 - 請求項2に記載の弁装置において、
前記第1部分は、前記弁室を側方へ開放させる開口を有し、
前記第2部分は、前記開口を塞ぐように前記第1部分に取り付けられている弁装置。 - 請求項3に記載の弁装置において、
前記ケーシングは、前記弁室を区画する天井壁と、底壁と、前記天井壁と前記底壁とを連結する側周壁とを有し、
前記第1部分は、前記天井壁、前記底壁及び前記側周壁の一部を含み、
前記第2部分は、前記側周壁の残りの部分を含み、
前記側周壁のうち前記第1部分に含まれる部分に、前記開口が形成され、
前記ベースは、前記底壁と対向し、前記底壁との間に隙間を形成するように配置されている弁装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021406566A AU2021406566B2 (en) | 2020-12-25 | 2021-11-22 | Valve device |
JP2022516704A JP7082726B1 (ja) | 2020-12-25 | 2021-11-22 | 弁装置 |
KR1020237023767A KR102685313B1 (ko) | 2020-12-25 | 2021-11-22 | 밸브 장치 |
EP21910090.6A EP4269851A4 (en) | 2020-12-25 | 2021-11-22 | VALVE DEVICE |
MX2023007377A MX2023007377A (es) | 2020-12-25 | 2021-11-22 | Dispositivo de valvula. |
US18/340,623 US11953110B2 (en) | 2020-12-25 | 2023-06-23 | Valve device |
Applications Claiming Priority (2)
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