CN111841153B - Multi-cavity bubble counter for gas leakage detection system - Google Patents
Multi-cavity bubble counter for gas leakage detection system Download PDFInfo
- Publication number
- CN111841153B CN111841153B CN202010511605.2A CN202010511605A CN111841153B CN 111841153 B CN111841153 B CN 111841153B CN 202010511605 A CN202010511605 A CN 202010511605A CN 111841153 B CN111841153 B CN 111841153B
- Authority
- CN
- China
- Prior art keywords
- cavity
- gas
- bubble
- pipeline
- liquid separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 40
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 239000007799 cork Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the technical field of gas leakage detection, in particular to a multi-cavity bubble counter for a gas leakage detection system, which comprises a bubble counting cavity and a first pipeline, wherein part of the first pipeline is inserted into the bubble counting cavity, the end part of the first pipeline, which extends into the bubble counting cavity, is positioned below the liquid level in the bubble counting cavity, the upper part of the bubble counting cavity is provided with a backflow cavity, the upper end part of the first pipeline is positioned in the backflow cavity, and the upper end part of the backflow cavity is provided with a gas inlet. The invention has the advantages that: the backflow cavity is arranged to prevent liquid in the bubble measuring cavity from being sucked back into upstream equipment connected with the air inlet.
Description
Technical Field
The invention relates to the technical field of gas leakage detection, in particular to a multi-cavity bubble counter for a gas leakage detection system.
Background
The bubble counter is a common instrument used in leakage detection, and can be used for leakage observation and manual counting. The traditional bubble counter has the characteristics of simple structure and low cost, and the structural schematic diagram is shown as the attached drawing 1. Leaked gas enters the bubble counter from the inlet and is discharged to the downstream from the outlet. The gas pipe is immersed below the liquid level, and bubbles are formed in the leak detection process so as to be convenient for observation. The use of conventional bubble counters is limited by the magnitude and direction of the leakage air flow. When the leakage gas flow is too large, continuous bubbles are easily formed to cause liquid level splashing, so that the gas discharged from the outlet carries a large amount of liquid drops, and the liquid drops entering the downstream can damage downstream equipment (such as a high-precision gas flow meter).
Disclosure of Invention
To prevent liquid level splashing caused by excessive leakage gas flow, and to enable gas discharged from an outlet to carry a large number of liquid drops into downstream equipment, the invention provides a multi-cavity bubble counter for a gas leakage detection system.
The invention adopts the following technical scheme:
the utility model provides a multi-chamber bubble counter for gas leak detection system, includes the bubble counter chamber, gives vent to anger the end and inserts the first pipeline of bubble counter intracavity liquid level below, still includes the backflow chamber, the inlet end of first pipeline is located the backflow intracavity, still be provided with the air inlet on the backflow chamber.
Specifically, the depth of the first pipeline below the liquid level is not more than the length of the first pipeline in the backflow cavity.
Specifically, the outer side of the bubble measuring cavity is further provided with a gas-liquid separation cavity, the upper end portions of the gas-liquid separation cavity and the bubble measuring cavity are connected through a second pipeline, and the gas-liquid separation cavity is further provided with a gas outlet.
Specifically, the backflow cavity is located at the upper end of the bubble counting cavity, and the second pipeline is of an inverted U-shaped structure.
Specifically, the gas-liquid separation cavity is coaxially and annularly arranged on the outer side of the bubble measuring cavity.
Specifically, the central axis of the gas-liquid separation cavity is used as a central axis, and the gas outlet and the outlet of the second pipeline on the gas-liquid separation cavity are symmetrically arranged.
Specifically, an overpressure protection piece is further arranged at the upper end of the backflow cavity.
In particular, the overpressure protection is a soft plug or a pressure relief valve.
Specifically, a liquid level adjusting port is arranged below the bubble measuring cavity.
Specifically, the second pipeline comprises a first pipeline section and a second pipeline section which are sequentially connected, the upper end part of the first pipeline section is connected with a first joint arranged on the upper end surface of the backflow cavity, and the lower end part extending into the bubble metering cavity is flush with the top wall of the bubble metering cavity; the second pipe section is a bent pipe, one end of the bent pipe is connected with the first joint, and the other end of the bent pipe is connected with a second joint arranged on the gas-liquid separation cavity.
The invention has the advantages that:
(1) the air flow direction of the bubble counter is determined in normal use, but under special conditions, if a low-temperature environment is formed at the upstream, negative pressure is formed due to the sealing property of the air path, so that the liquid in the bubble counter is sucked backwards, the backflow liquid damages upstream equipment, the test effect is influenced, and even the equipment is damaged. This application is through setting up the backflow chamber, and the liquid after the first pipeline refluxes can not directly flow back to upstream equipment in through the air inlet, but flows into the backflow intracavity.
(2) The function of the backflow cavity is that when the back suction is formed, the effective volume of the backflow cavity is enough to contain backflow liquid, wherein the height corresponding to the effective volume is the length of the first pipeline in the backflow cavity, and the maximum amount of backflow liquid corresponds to the depth of the first pipeline extending into the liquid level of the bubble counting cavity. When all the backflow liquid enters the backflow cavity, the liquid level in the bubble counting cavity is lower than the lower end of the first pipeline, and at the moment, even if the backflow continues, no liquid is sucked into upstream equipment, but gas is generated, and damage is avoided. Otherwise, the backflow cavity is invalid, the effective volume is not enough to contain the backflow liquid, the liquid continuously enters the backflow cavity, the liquid level of the liquid is higher than the upper end of the first pipeline, and the backflow liquid continuously enters the backflow cavity until the liquid level in the bubble counting cavity is lower than the lower end of the first pipeline. After that, the gas that continuously absorbs backward gets into the return intracavity through first pipeline, because first pipeline upper end is less than the liquid level, will form the bubble, makes the liquid level unstable, very easily makes and causes the liquid level in the return intracavity too high, returns through the air inlet and flows into the upper reaches, causes the inefficacy.
(3) According to the invention, the second pipeline and the gas-liquid separation cavity are arranged, so that the liquid drops flying out due to overlarge leakage airflow enter the gas-liquid separation cavity, and the separated gas can be discharged to downstream equipment through the gas outlet.
(4) The flow velocity of the gas-liquid mixture can be reduced by the arrangement of the inverted U-shaped structure, and due to the action of gravity, after the gas-liquid mixture fluid enters the annular channel of the gas-liquid separation cavity through the second pipeline, the flow velocity is reduced due to the enlarged space, and the liquid drops can be attached to the inner wall of the gas-liquid separation cavity under the dual actions of gravity and liquid surface tension, so that the gas-liquid separation effect is achieved.
(5) The gas-liquid separation chamber is coaxially and annularly arranged on the outer side of the bubble metering chamber, so that the whole bubble metering device is more compact. The gas inlet and the gas outlet on the gas-liquid separation cavity are farthest in distance due to the symmetrical arrangement, the gas flow path is longest, and the gas-liquid separation effect is best.
(6) Due to the limitation of the first pipeline and the second pipeline in the bubble counter, the flow capacity is limited, a certain degree of air pressure is formed in the backflow cavity of the bubble counter, the structure of the bubble counter can be damaged, and the overpressure protection piece can play a role in reducing the pressure of the backflow cavity, so that the bubble counter is protected.
(7) A soft plug or a pressure relief valve may be used as an overpressure protection.
(8) The liquid level regulating port can be used for supplementing liquid into the bubble measuring cavity or discharging the liquid in the bubble measuring cavity.
Drawings
Fig. 1 is a structural view of a conventional bubble counter.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a structural sectional view of the present invention.
The notations in the figures have the following meanings:
1-overpressure protection 2-gas inlet 3-first joint 4-second pipe section
5-second joint 61-reflux cavity 62-bubble measuring cavity 63-gas-liquid separation cavity
7-air outlet 8-liquid level regulating port 9-first pipeline 10-first pipe section
11-support part
Detailed Description
As shown in fig. 2 to 3, a multi-cavity bubble counter for a gas leak detection system comprises a return flow cavity 61, a bubble counting cavity 62, a gas-liquid separation cavity 63, a first pipeline 9 and a second pipeline. The first pipeline 9 is partially inserted into the bubble counting cavity 62, the end part extending into the bubble counting cavity 62 is positioned below the liquid level in the bubble counting cavity 62, the backflow cavity 61 is arranged above the bubble counting cavity 62, the upper end part of the first pipeline 9 is positioned in the backflow cavity 61, the upper end part of the backflow cavity 61 is provided with an air inlet 2, and the air inlet 2 is provided with a third joint connected with upstream equipment.
In order to prevent the backflow cavity 61 from being failed, the depth of the first pipeline 9 below the liquid level of the bubble counting cavity is not more than the length of the first pipeline 9 in the backflow cavity 61. The greater the difference between the length of the first pipe 9 in the return chamber 61 and the depth of the first pipe 9 below the liquid level of the bubble measuring chamber, the safer the difference is, but the distance between the upper end of the first pipe and the top wall in the return chamber is not too small, otherwise the returned liquid may flow back from the inlet 2 into the upstream equipment.
The gas-liquid separation chamber 63 is arranged outside the bubble counting chamber 62, the upper ends of the gas-liquid separation chamber 63 and the bubble counting chamber 62 are connected through a second pipeline, and the gas outlet 7 is arranged on the gas-liquid separation chamber 63.
The second pipeline is the type of falling U structure, and the flow velocity of gas-liquid mixture can be reduced in the setting of the type of falling U structure, because the action of gravity, after gas-liquid mixture fluid gets into the annular channel in gas-liquid separation chamber through the second pipeline, because the space grow, the flow velocity descends, gravity and liquid surface tension's dual function, and the liquid drop can be attached to the inner wall in gas-liquid separation chamber, plays the effect of gas-liquid separation.
The gas-liquid separation cavity 63 is coaxially and annularly arranged outside the bubble counting cavity 62. In this embodiment, the bubble counter chamber 62 and the gas-liquid separation chamber 63 are concentric cylinders, so that the entire bubble counter will be more compact. The second pipeline comprises a first pipe section 10 and a second pipe section 4 which are connected in sequence, the upper end part of the first pipe section 10 is connected with a first joint 3 arranged on the upper end surface of the backflow cavity 61, and the lower end part extending into the foam metering cavity 62 is flush with the inner top wall of the foam metering cavity 62; the second pipe section 4 is a bent pipe, one end of the bent pipe is connected with the first joint 3, and the other end of the bent pipe is connected with the second joint 5 arranged on the gas-liquid separation cavity 63.
And the gas outlet 7 and the outlet of the second pipeline on the gas-liquid separation cavity 63 are symmetrically arranged by taking the central axis of the gas-liquid separation cavity 63 as a central axis. The symmetrical arrangement makes the gas inlet and the gas outlet 7 on the gas-liquid separation chamber 63 farthest away, the gas flow path is longest, and the gas-liquid separation effect is the best.
The upper end of the return flow chamber 61 is also provided with an overpressure protection 1. In particular, the overpressure protection 1 is a soft plug or a pressure relief valve. The overpressure protection piece 1 is arranged to not only reduce the pressure of the backflow cavity, but also achieve the effect of reducing the pressure of the whole bubble counter due to the fact that the three cavities are connected through the pipeline and the pressure is consistent, and therefore the overpressure protection piece is not limited to the backflow cavity.
A liquid level adjusting port 8 is arranged below the bubble measuring cavity 62. The below of bubble measuring chamber 62 still is provided with supporting part 11, and external pipeline can be made things convenient for to level control mouth 8 like this to can not push down external pipeline and level control mouth 8 because of the weight of whole bubble measuring ware, when only needing the liquid of evacuation bubble measuring chamber 62, can place the container in level control mouth 8 below, supporting part 11 provides the space for the container.
In summary, the air path in the invention is:
the leaked gas enters the return flow cavity 61 from the gas inlet 2 and enters the bubble counting cavity 62 through the first pipeline 9, the gas in the bubble counting cavity 62 sequentially enters the gas-liquid separation cavity 63 through the first pipe section 10, the first joint 3, the second pipe section 4 and the second joint 5, and the gas is discharged to the downstream from the gas outlet 7 after passing through the gas-liquid separation cavity 63.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A multi-cavity bubble counter for a gas leakage detection system comprises a bubble counting cavity (62) and a first pipeline (9) with an air outlet end inserted below the liquid level in the bubble counting cavity (62), and is characterized by further comprising a return flow cavity (61), wherein the air inlet end of the first pipeline (9) is positioned in the return flow cavity (61), and the return flow cavity (61) is further provided with an air inlet (2);
the depth of the first pipeline (9) below the liquid level is not more than the length of the first pipeline (9) in the backflow cavity (61);
a gas-liquid separation cavity (63) is further arranged on the outer side of the bubble measurement cavity (62), the gas-liquid separation cavity (63) is connected with the upper end portion of the bubble measurement cavity (62) through a second pipeline, and a gas outlet (7) is further formed in the gas-liquid separation cavity (63);
the backflow cavity (61) is positioned at the upper end part of the bubble measuring cavity (62), and the second pipeline is of an inverted U-shaped structure;
the gas-liquid separation cavity (63) is coaxially and annularly arranged on the outer side of the bubble measuring cavity (62);
the gas outlet (7) and the outlet of the second pipeline on the gas-liquid separation cavity (63) are symmetrically arranged by taking the central axis of the gas-liquid separation cavity (63) as a central axis;
the second pipeline comprises a first pipe section (10) and a second pipe section (4) which are sequentially connected, the upper end part of the first pipe section (10) is connected with a first joint (3) arranged on the upper end surface of the backflow cavity (61), and the lower end part extending into the bubble counting cavity (62) is flush with the inner top wall of the bubble counting cavity (62); the second pipe section (4) is a bent pipe, one end of the bent pipe is connected with the first joint (3), and the other end of the bent pipe is connected with a second joint (5) arranged on the gas-liquid separation cavity (63);
a third joint connected with upstream equipment is arranged on the air inlet (2);
the overflowed liquid drops caused by overlarge leakage airflow enter the gas-liquid separation cavity (63), so that the separated gas is discharged to downstream equipment through the gas outlet (7).
2. A multi-chamber bubble counter for a gas leak detection system according to claim 1, wherein the upper end of the return chamber (61) is further provided with an overpressure protection (1).
3. A multi-chamber bubble counter for a gas leak detection system according to claim 2, wherein the overpressure protection (1) is a cork or a pressure relief valve.
4. A multi-chamber bubble counter for a gas leak detection system according to claim 1, wherein a level regulating port (8) is provided below the bubble counter chamber (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511605.2A CN111841153B (en) | 2020-06-08 | 2020-06-08 | Multi-cavity bubble counter for gas leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511605.2A CN111841153B (en) | 2020-06-08 | 2020-06-08 | Multi-cavity bubble counter for gas leakage detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111841153A CN111841153A (en) | 2020-10-30 |
| CN111841153B true CN111841153B (en) | 2022-07-19 |
Family
ID=72986377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010511605.2A Active CN111841153B (en) | 2020-06-08 | 2020-06-08 | Multi-cavity bubble counter for gas leakage detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111841153B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617020A (en) * | 1984-10-18 | 1986-10-14 | Bioresearch Inc. | Air leak detector and counter for drainage device |
| CN202886282U (en) * | 2012-08-20 | 2013-04-17 | 青岛众瑞智能仪器有限公司 | Aerosol photometer |
| CN203090632U (en) * | 2012-11-13 | 2013-07-31 | 中国人民解放军军事医学科学院卫生装备研究所 | Efficient leak detection and gas disinfection type high-efficiency air filtering device |
| CN104062081A (en) * | 2013-03-20 | 2014-09-24 | 北京航天试验技术研究所 | Remotely-controlled wide-range gas leakage rate detection device |
-
2020
- 2020-06-08 CN CN202010511605.2A patent/CN111841153B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111841153A (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105784076B (en) | A kind of amount for demarcating horizontal metal tank volume enters to measure double caliberating devices and method | |
| CN208921194U (en) | A kind of ultrasonic water meter | |
| CN205879724U (en) | Setting is at liquid level and close measuring device of desulfurization absorption tower and thick liquid jar | |
| CN102921052A (en) | Disposable self-control precision metering drainage bag | |
| CN111841153B (en) | Multi-cavity bubble counter for gas leakage detection system | |
| CN103223196B (en) | Semi-automatic metering device for medical drainage | |
| CN107041752B (en) | Weighing type vital capacity measuring device | |
| CN106838614A (en) | A kind of positive/negative pressure protector | |
| CN210119256U (en) | Water leakage and water flow testing device | |
| CN106643969A (en) | Open heating pot liquid level measuring system and method | |
| CN207703447U (en) | A kind of measuring and calculating jet stream holds the device of tolerance under the arm | |
| CN206027164U (en) | Gas -liquid separating device | |
| CN113898588A (en) | Self-priming pump testing device | |
| CN219043024U (en) | Full-automatic oxygen flow measuring device | |
| CN216258476U (en) | Drainage bottle with flowing back function | |
| CN211834421U (en) | Micro-precision liquid metering device | |
| CN208567988U (en) | A kind of gas flow measurement soap film flowmeter | |
| CN210863444U (en) | Viscometer for rapidly detecting viscosity of fluid | |
| CN214286082U (en) | Medical anal tube air exhaust bottle with metering function | |
| CN213090866U (en) | Glass rotameter that cleaning performance is good | |
| CN220187789U (en) | Gas production measuring device for lithium battery | |
| CN220649633U (en) | Soap film flowmeter | |
| CN215652901U (en) | Accomodate eduction gear | |
| CN202397863U (en) | Disposable self-control precision-metering drainage bag | |
| CN213129465U (en) | Vital capacity experience tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Hongbiao Inventor after: Wu Huaikun Inventor after: Guo Huaizhou Inventor after: Zhu Shaoyuan Inventor after: Ming You Inventor after: Chen Fengguan Inventor after: Hao Weisha Inventor after: Hu Jun Inventor after: Hu Chunyan Inventor before: Gao Hongbiao Inventor before: Wu Huaikun Inventor before: Guo Huaizhou Inventor before: Zhu Shaoyuan Inventor before: Ming You Inventor before: Chen Fengguan Inventor before: Hao Weisha Inventor before: Hu Jun Inventor before: Hu Chunyan |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240815 Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Country or region after: China Patentee after: SINOMACH GENERAL MACHINERY SCIENCE & TECHNOLOGY CO.,LTD. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Country or region before: China Patentee before: HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |