CN101949719A - Water-gas separation device - Google Patents
Water-gas separation device Download PDFInfo
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- CN101949719A CN101949719A CN 201010225690 CN201010225690A CN101949719A CN 101949719 A CN101949719 A CN 101949719A CN 201010225690 CN201010225690 CN 201010225690 CN 201010225690 A CN201010225690 A CN 201010225690A CN 101949719 A CN101949719 A CN 101949719A
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- cavity
- moisture separator
- water
- core assembly
- exhaust outlet
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Abstract
The invention discloses a water-gas separation device comprising a hollow cavity, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are arranged on the side surface of a cavity near the bottom and extend out of the cavity from the side surface. The water-gas separation device is characterized in that the top of the cavity is provided with an exhaust outlet; the middle of the cavity is provided with a path along the length direction of the cavity; a valve plug assembly capable of moving up and down along the path is arranged in the path; a valve plate is connected below the valve plug assembly; the valve plug assembly causes the valve plate to downwards block the water outlet path of the water-gas separation device; the valve plug assembly upwards just blocks the exhaust outlet of the top of the cavity; and simultaneously, the valve plate opens the water outlet path. The water-gas separation device can effectively discharge air in the pipe and prevent a water meter from idling and rotating.
Description
Technical field
The present invention relates to a kind of moisture separator, particularly relate to a kind of moisture separator that is used for water meter.
Background technology
On the common water meter, an aqueous vapor separation chamber or moisture separator all are housed, be used for water before entering the runner of water meter, ducted air is discharged, prevent because air disturbs idle running or the reversing that causes current, it is inaccurate that thereby the runner that causes is measured, general aqueous vapor separation chamber, as Chinese patent CN2488051Y disclosed " high sensitivity gas compensating type tap water meter ", aqueous vapor separation chamber in this water meter is positioned at the top of runner, the below of water inlet, this aqueous vapor separation chamber make the water inlet water of coming in enter into the medial compartment that is provided with runner by the water hole on the dividing plate, on the dividing plate of the edge side of medial compartment the gas intercommunicating pore are arranged still.When just beginning to measure, when water enters into medial compartment by the water hole, air in the medial compartment is discharged from medial compartment by the gas intercommunicating pore on the dividing plate, but the effect that such aqueous vapor separation chamber aqueous vapor is separated is not fine, and the speed that aqueous vapor is separated when water meter is measured water inlet neither be very fast, the use of dividing plate has also cushioned current, has influenced the speed of current, influences the precision that water meter is measured.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of moisture separator that can fast and effeciently discharge the ducted air of water meter at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of moisture separator, comprise the cavity of hollow and be positioned near on the cavity side of bottom, and stretch out in the inlet channel and the outlet conduit of cavity from the side, it is characterized in that: the top of described cavity has exhaust outlet, the middle part of described cavity has one section passage along the cavity length direction, one core assembly that moves up and down along described passage is located in the described passage, the below of described core assembly connects a valve plate, described core assembly makes valve plate block the exhalant canal of moisture separator downwards, and described core assembly is upwards just in time blocked the exhaust outlet and the while valve plate at cavity top and opened exhalant canal.By such moisture separator, effectively the air in the discharge line prevents the idle running and the revolution of water meter.
For support passage, the middle part of described cavity has one cavity is divided into up and down two-part dividing plate, and described passage is formed in the middle of the dividing plate, and has a plurality of through holes on the dividing plate in the described passage outside.
Preferably, described cavity comprises pedestal, be connected the matrix on the pedestal and be connected gas deflation assembly on the described matrix, and described exhaust outlet is positioned at the top of gas deflation assembly, and described inlet channel and outlet conduit are located at the side of matrix bottom respectively.
And in order to seal this cavity better, described pedestal is provided with the groove that inserts for matrix, also be provided with the groove that inserts for matrix on the described gas deflation assembly, and be respectively equipped with O type circle between the groove of the groove of described matrix and described pedestal and described gas deflation assembly.
For overflowing of exhaust and anti-sealing better, described exhaust outlet is provided with lid, and the side of described exhaust outlet is provided with a plurality of vent ports.
For water being made a circulation and exhaust better, described inlet channel enters bending downwards behind the cavity.
In order to block exhaust outlet better when core assembly rises, the top of described core assembly is a T shoulder face, and described T shoulder face places the coboundary of described passage, described exhaust outlet and the corresponding setting of described T shoulder face.
In order to make core assembly upwards seal exhaust outlet better, described exhaust outlet below forms a prominent circle, forms the corresponding groove of a circle on the T shoulder face of described core assembly, and described prominent circle is inserted in the described groove, and also is provided with O-ring seal in the described groove.
And in order to guarantee the buoyancy of this core assembly better, described core assembly is a hollow part.
Compared with prior art; the invention has the advantages that: this moisture separator can just enter water pipe at water, and the air in the emptying pipe to be to prevent to influence the measurement of water meter rapidly, effectively before arriving water meter; and this moisture separator also has the function to the negative pressure protection of pipeline, prevents the idle running or the revolution of water meter.
Description of drawings
Fig. 1 is the cut-open view of moisture separator of the present invention.
Fig. 2 is the working state schematic representation of moisture separator of the present invention, and water has just entered moisture separator under this state, and the buoyancy of core assembly is less than self gravitation at this moment, and valve plate is not opened.
Fig. 3 is the working state schematic representation of moisture separator of the present invention, and the valve plate that enters water meter under this state is opened gradually.
Fig. 4 is the working state schematic representation of moisture separator of the present invention, and the core assembly under this state in the moisture separator outreaches, and this moisture separator is finished aqueous vapor and separated.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Moisture separator of the present invention, be installed between the water inlet and inlet channel of water meter, this moisture separator, shown in Fig. 1-4, the cavity that comprises hollow, this cavity is divided into pedestal 1, and be installed on the matrix 2 on the pedestal 1 and be installed on gas deflation assembly 3 on the matrix 2, the bottom of described matrix 2, the upside of pedestal 1, have the inlet channel 4 and the outlet conduit 5 that stretch out in matrix 2 from the side, and inlet channel 4 is bending downwards in matrix 2, water enters into downwards on the pedestal 1 of matrix 2 bottoms after the water inlet of inlet channel 4 enters inlet channel 4, slowly rises to matrix 2 from pedestal 1 then, and current are by after the bending of inlet channel 4, current have formed circuitous, are used for better ducted air being discharged from this moisture separator.The inlet channel 4 of described moisture separator is connected to water pipe, and outlet conduit 5 is connected to measuring water meter.
Be provided with a dividing plate 7 in the middle of the matrix 2 of moisture separator matrix 2 is divided into two parts up and down, and this dividing plate 7 forms one section passage 72 along matrix 2 length directions in the centre.Also be provided with core assembly 6 in the described matrix 2, described core assembly 6 be located in the described passage 72 and and described passage 72 between form the space, core assembly 6 can upwards float under the buoyancy of water effect along passage 72.The bottom of described core assembly 6 is connected with valve plate 8, and this valve plate 8 is blocked outlet conduit 5.Also there are not emptying, core assembly 6 also less than the time-out of floating downward in the buoyancy of water effect at ducted air, valve plate 8 is blocked outlet conduit 5, water can not enter into water meter by outlet conduit, air emptying in the matrix 2 of moisture separator, when being filled by water fully, core assembly 6 drives valve plate 8 simultaneously and upwards opens outlet conduit 5 because buoyancy of water will upwards float, and ducted water just can enter into by this moisture separator and measure water meter this moment.
This core assembly 6 is the parts of a hollow, in order to guarantee its buoyancy in water.One T shoulder face 61 is formed at the top of this core assembly 6, and this T shoulder face 61 can be resisted against the coboundary of passage 72 when core assembly 6 does not float, prevent that core assembly 6 from dropping.And at core assembly 61 because during buoyancy force, described T shoulder face 61 is blocked the exhaust outlet 31 of the gas deflation assembly 3 of matrix 2 tops.
The top of matrix 2 is provided with gas deflation assembly 3, gas deflation assembly 3 is provided with an exhaust outlet 31, this exhaust outlet 31 is provided with lid 34, the side of the below exhaust outlet 31 of lid 34 is provided with a plurality of vent ports 32, core assembly 6 floats to its T shoulder face 61 when the highest and just in time blocks exhaust outlet 31 on this gas deflation assembly 3 last, and water can not overflowed from vent port 32.Preferably, described exhaust outlet 31 forms a prominent circle 33 downwards, forms a circle corresponding grooves 62 on the T shoulder face 61 of described core assembly 6, and the prominent circle 33 of described exhaust outlet 31 is inserted into sealing these exhaust outlets 31 in back in the groove 62 of core assembly.And can also be provided with O-ring seal 63 in the groove 62 of core assembly 6 is used for sealing better.
And also have a plurality of through holes 71 on the described dividing plate 7, through hole 71 on the described dividing plate and the passage 72 on the dividing plate 7 and the space between the core assembly 6 can make the water in the matrix overflow to the upper space of dividing plate 7 from the below of dividing plate 7.
Preferably, has groove 11 on the described pedestal 1, described matrix 2 is inserted in this groove 11, and being provided with a circle O type circle between matrix 2 and the pedestal 1 seals, also have a circle groove 35 on the gas deflation assembly 3 of matrix 2 tops, the top of matrix 2 also is inserted in the groove 35 and also seals by O type circle.
The principle of work of this moisture separator is shown in Fig. 2-4, this moisture separator is loaded on the front end of water meter, before water does not enter moisture separator by water pipe, has air in the cavity of this moisture separator, this moment, core assembly 6 was because the buoyancy of air is positioned at the bottom of the passage 72 of described dividing plate 7 less than himself gravity, this moment, valve plate 8 was blocked the outlet conduit of moisture separator, and water can not enter into the water meter of the vacuum of outlet conduit 5 connections from this outlet conduit 5.As shown in Figure 2, water enters in the cavity of moisture separator from inlet channel 4 gradually, because this moment, buoyancy of water was also less than the self gravitation of core assembly 6, therefore, this moment, core assembly 6 did not upwards float, and valve plate 8 has still been blocked outlet conduit 5, and water does not enter outlet conduit 5 but slowly begins to be full of the cavity of moisture separator, and discharges gases by vent port 32 simultaneously.
As shown in Figure 3, water enters into matrix 2 from inlet channel 4 gradually, because inlet channel 4 bendings are to the pedestal 1 of bottom, current form circuitous, and the air in the inlet channel 4 will be from the below of dividing plate 7 to the top be discharged from the vent port 32 of the gas deflation assembly 3 of matrix 2 tops more gradually, after the water in the matrix 2 has arrived certain quantity, buoyancy of water is greater than the self gravitation of core assembly 6, core assembly 6 will be along with buoyancy of water floats gradually, and the valve plate 8 of core assembly 6 connections simultaneously will be opened gradually, because this moment, outlet conduit 5 was not had by water logging, so the air that does not have in pipeline or the moisture separator is squeezed in the water meter that enters outlet conduit 5 connections by water.
As shown in Figure 4, along with increasing of water in the moisture separator, core assembly 6 can continue upwards, and when arriving peak, because the application valve core assembly 6 of hydraulic pressure can be blocked the exhaust outlet 31 of gas deflation assembly 3 in buoyancy function and the pipeline, the prominent circle 33 of exhaust outlet 31 belows was inserted in the groove 62 on the T shoulder face 61 of core assembly 6 and sealed up this exhaust outlet 31 this moment.The water that enters from inlet channel 4 can and enter into outlet conduit 5 by moisture separator, can not overflow from the top of moisture separator.Owing to add this moisture separator; when just entering water meter, water just begins the air in the discharge line; do not have the water meter that air enters into the outlet conduit 5 that is connected to moisture separator; this moisture separator also has the function to the negative pressure protection of pipeline simultaneously, prevents the idle running or the revolution of water meter.Promptly when pipeline becomes negative pressure, when the negative pressure value in the pipeline arrives to a certain degree greatly, when being outer atmospheric pressure of pipeline and inner pipe water pressure to the combined action power of core assembly 6 greater than buoyancy, this moment, core assembly 6 can be opened vent port downwards, negative pressure in the pipe will just effectively prevent the pipeline damage owing to the elimination of opening of vent port.If the negative pressure of pipeline can not get eliminating, will suck air from the external world, air is upset current, will cause the reversing of water meter, and the negative pressure inhaled air will cause the idle running of water meter when the water meter side is discharged.
This device utilizes the density of water and air different and differ bigger physical principle, when object utilizes this physics fact to realize automatic come-up or the decline of core assembly 6 much larger than object air in air to the buoyancy of object to the buoyancy of object at Shui Zhongshui; Its buoyancy is less than the gravity of himself when core assembly 6 air in air, therefore this moment, core assembly 6 can not float, at this moment exhaust outlet 31 is also opened, and the gas in the pipeline just can be separated and is discharged to outside the pipeline from exhaust outlet 31 by moisture separator.When air drains, water will be full of the cavity of moisture separator, at this moment water is greater than himself gravity to the buoyancy of core assembly 6, core assembly 6 can float rapidly to the top thus, and under buoyancy, withstand exhausr port, at this moment utilize core assembly 6 exhaust outlet 31 under the acting in conjunction of buoyancy and inner pipe water pressure to be sealed up firmly, even this sealing means also can utilize the automatic sealing effectiveness of strengthening exhausr port of the acting force of hydraulic pressure when hydraulic pressure increases, make when big hydraulic pressure, exhaust outlet 31 also can effectively seal water-tight.
Although more than described the preferred embodiments of the present invention in detail, should be expressly understood that for a person skilled in the art, the present invention can have various changes and variation.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. moisture separator, comprise the cavity of hollow and be positioned near on the cavity side of bottom, and stretch out in the inlet channel (4) and the outlet conduit (5) of cavity from the side, it is characterized in that: the top of described cavity has exhaust outlet (31), the middle part of described cavity has one section passage along the cavity length direction (72), one core assembly (6) that moves up and down along described passage (72) is located in the described passage (72), the below of described core assembly (6) connects a valve plate (8), described core assembly (6) makes valve plate (8) block the exhalant canal (5) of moisture separator downwards, and described core assembly (6) is upwards just in time blocked the exhaust outlet (31) and the while valve plate (8) at cavity top and opened exhalant canal (5).
2. moisture separator as claimed in claim 1, it is characterized in that: the middle part of described cavity has one cavity is divided into up and down two-part dividing plate (7), described passage (72) is formed in the middle of the dividing plate (7), and has a plurality of through holes (71) on the dividing plate (7) in described passage (72) outside.
3. moisture separator as claimed in claim 1, it is characterized in that: described cavity comprises pedestal (1), be connected the matrix (2) on the pedestal (1) and be connected gas deflation assembly (3) on the described matrix (2), described exhaust outlet (31) is positioned at the top of gas deflation assembly (3), and described inlet channel (4) and outlet conduit (5) are located at the side of matrix (2) bottom respectively.
4. moisture separator as claimed in claim 3, it is characterized in that: described pedestal (1) is provided with the groove (11) that inserts for matrix (2), also be provided with the groove (35) that inserts for matrix (2) on the described gas deflation assembly (3), and be respectively equipped with O type circle between the groove (35) of the groove (11) of described matrix (2) and described pedestal (1) and described gas deflation assembly (3).
5. moisture separator according to claim 1, it is characterized in that: described exhaust outlet (31) is provided with lid (34), and the side of described exhaust outlet (31) is provided with a plurality of vent ports (32).
6. moisture separator as claimed in claim 1 is characterized in that: described inlet channel (4) enters bending downwards behind the cavity.
7. moisture separator as claimed in claim 1 is characterized in that: T shoulder face face is formed on the top of described core assembly (6), and described T shoulder face places the coboundary of described passage (72), described exhaust outlet (31) and the corresponding setting of described T shoulder face.
8. moisture separator as claimed in claim 7, it is characterized in that: described exhaust outlet (31) below forms a prominent circle (33), form a circle corresponding groove (62) on the T shoulder face of described core assembly (6), described prominent circle (33) is inserted in the described groove (62), and also is provided with O-ring seal (63) in the described groove (62).
9. as each described moisture separator of claim 1-8, it is characterized in that: described core assembly (6) is a hollow part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102256902A CN101949719B (en) | 2010-07-07 | 2010-07-07 | Water-gas separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102256902A CN101949719B (en) | 2010-07-07 | 2010-07-07 | Water-gas separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949719A true CN101949719A (en) | 2011-01-19 |
| CN101949719B CN101949719B (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102256902A Active CN101949719B (en) | 2010-07-07 | 2010-07-07 | Water-gas separation device |
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| Country | Link |
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| CN (1) | CN101949719B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623633A (en) * | 2017-10-06 | 2019-04-16 | 株式会社迪思科 | Steam-water separation container |
| CN112212933A (en) * | 2020-09-10 | 2021-01-12 | 宁波水表(集团)股份有限公司 | Wet water meter |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708157A (en) * | 1986-10-07 | 1987-11-24 | Flowtron Industries, Inc. | Air eliminator for fluid handling systems |
| JPH1078149A (en) * | 1996-09-05 | 1998-03-24 | Morita Tekkosho:Kk | Quick air valve |
| CN2488051Y (en) * | 2001-06-29 | 2002-04-24 | 白建华 | High-sensitivity air-supplying type running water watermeter |
| CN101000254A (en) * | 2006-07-08 | 2007-07-18 | 孙恩新 | Inner guide multifunction digital water meter |
| CN100359295C (en) * | 2004-09-11 | 2008-01-02 | 赵生益 | Liquid and gas separating metering device |
| CN201007203Y (en) * | 2007-05-25 | 2008-01-16 | 任源峰 | Coal bed gas well test production water vapor separating and metering mechanism |
| JP2008238045A (en) * | 2007-03-27 | 2008-10-09 | Citizen Holdings Co Ltd | Bubble removing apparatus |
| CN101683576A (en) * | 2008-09-24 | 2010-03-31 | 北京名辉宝狮油田设备有限公司 | Separator and flowmeter assembly with same |
| CN101718343A (en) * | 2009-12-10 | 2010-06-02 | 李树槐 | Non-leakage reversible automatic exhaust valve |
| CN201772904U (en) * | 2010-07-07 | 2011-03-23 | 宁波东海仪表水道有限公司 | Water-gas separation device |
-
2010
- 2010-07-07 CN CN2010102256902A patent/CN101949719B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708157A (en) * | 1986-10-07 | 1987-11-24 | Flowtron Industries, Inc. | Air eliminator for fluid handling systems |
| JPH1078149A (en) * | 1996-09-05 | 1998-03-24 | Morita Tekkosho:Kk | Quick air valve |
| CN2488051Y (en) * | 2001-06-29 | 2002-04-24 | 白建华 | High-sensitivity air-supplying type running water watermeter |
| CN100359295C (en) * | 2004-09-11 | 2008-01-02 | 赵生益 | Liquid and gas separating metering device |
| CN101000254A (en) * | 2006-07-08 | 2007-07-18 | 孙恩新 | Inner guide multifunction digital water meter |
| JP2008238045A (en) * | 2007-03-27 | 2008-10-09 | Citizen Holdings Co Ltd | Bubble removing apparatus |
| CN201007203Y (en) * | 2007-05-25 | 2008-01-16 | 任源峰 | Coal bed gas well test production water vapor separating and metering mechanism |
| CN101683576A (en) * | 2008-09-24 | 2010-03-31 | 北京名辉宝狮油田设备有限公司 | Separator and flowmeter assembly with same |
| CN101718343A (en) * | 2009-12-10 | 2010-06-02 | 李树槐 | Non-leakage reversible automatic exhaust valve |
| CN201772904U (en) * | 2010-07-07 | 2011-03-23 | 宁波东海仪表水道有限公司 | Water-gas separation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623633A (en) * | 2017-10-06 | 2019-04-16 | 株式会社迪思科 | Steam-water separation container |
| CN109623633B (en) * | 2017-10-06 | 2023-02-21 | 株式会社迪思科 | Steam-water separation container |
| CN112212933A (en) * | 2020-09-10 | 2021-01-12 | 宁波水表(集团)股份有限公司 | Wet water meter |
| CN112212933B (en) * | 2020-09-10 | 2024-05-28 | 宁波水表(集团)股份有限公司 | Wet water meter |
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| Publication number | Publication date |
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| CN101949719B (en) | 2012-03-28 |
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Address after: 315181 Heng Jie Lin Cun, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO DONGHAI INSTRUMENT WATERWAY Co.,Ltd. Address before: 315181, Zhejiang, Ningbo province Yinzhou District Heng Lin Village Patentee before: NINGBO DONGHAI INSTRUMENT WATERWAY Co.,Ltd. |
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Denomination of invention: Water gas separation device Effective date of registration: 20230815 Granted publication date: 20120328 Pledgee: Ningbo Yinzhou Rural Commercial Bank Co.,Ltd. Hengjie sub branch Pledgor: NINGBO DONGHAI INSTRUMENT WATERWAY CO.,LTD. Registration number: Y2023330001757 |