CN2762131Y - Liquid coupling medium supply device for ultrasonic detector - Google Patents
Liquid coupling medium supply device for ultrasonic detector Download PDFInfo
- Publication number
- CN2762131Y CN2762131Y CN 200420105603 CN200420105603U CN2762131Y CN 2762131 Y CN2762131 Y CN 2762131Y CN 200420105603 CN200420105603 CN 200420105603 CN 200420105603 U CN200420105603 U CN 200420105603U CN 2762131 Y CN2762131 Y CN 2762131Y
- Authority
- CN
- China
- Prior art keywords
- casing
- coupling medium
- liquid level
- liquid
- supersonic reflectoscope
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 66
- 230000008878 coupling Effects 0.000 title claims abstract description 30
- 238000010168 coupling process Methods 0.000 title claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an ultrasonic detector liquid coupling medium feeding device. The detection device comprises a box body, wherein a pair of holes for the penetration of a detected workpiece are formed in the upper part of the box body, a flexible bag body is arranged at the lower part of the box body, the periphery of the upper end of the flexible bag body is fixedly connected with the box body, a cavity is formed between the flexible bag body and the inner wall of the lower part of the box body, and an air inlet pipe and an air outlet pipe which are communicated with the cavity and used for the inlet and outlet of compressed air are arranged on the box. The beneficial effects of the utility model are that, because the interior coupling medium liquid level of box rises, descends steadily, no bubble produces, and the coupling medium leaks the leakage quantity very little in the testing process, and the liquid level is stable, provides the advantage for improving and guaranteeing to detect the precision, can adapt to the needs that detect different cross sectional shape work pieces moreover to reduce ultrasonic detector's running cost, greatly improved the production environment, can extensively apply to trades such as machine-building, petrochemical.
Description
Technical field
The utility model relates to a kind of couplant feedway of supersonic reflectoscope, relates in particular to the liquid coupling medium feedway in a kind of supersonic reflectoscope that applies to workpiece flaw detection, thickness measuring.
Background technology
Utilize supersonic reflectoscope that workpiece is carried out thickness or Non-Destructive Testing, be as the couplant that detects usefulness with water, wet goods liquid, its principle of work is to send ultrasound wave by ultrasonic probe to detected workpiece, receive the signal that ultrasound wave returns then and carry out analyzing and processing, thereby obtain thickness of workpiece and result of detection data.In testing process, if liquid make-up can cause its flow velocity and pressure changing to take place continually, also can produce bubble, these factors all can produce testing result and comparatively seriously influence.
Mainly there is following defective in existing liquid coupling medium feedway:
One, liquid coupling medium is easy to generate bubble in the supply process.Introduce the steel tube supersonic flaw detecting measuring thickness device of Germany as the Tianjin Seamless pipe mill, with water as the ultrasound wave couplant.Adopt steel pipe to pass water tank, in case, supply with low pressure and mass flow water, make inflow greater than the aquifer yield of asking the crack from water tank and outer wall of steel pipe.This device operating cost height, the leakage water yield is very big, has bubble in the water unavoidablely, the flaw detection thickness measuring is had certain influence, and water in service splashes work under bad environment everywhere.
Two, the couplant leakage rate is big in the course of work.As climb the immersion type failure detector that is used for rail examination of steel group independent development, this device has adopted three disjunctor water tanks side by side, and middle water tank is an operating water tank, in establish some probes, two is respectively an inlet water tank, and each tank wall has the hole similar to the rail profile shape.When the equivalent water supply simultaneously of two ends inlet water tank, the interior liquid level of middle work box remains static and keeps certain height.The pond of unnecessary water under the reflow tank of two ends, be withdrawn into the two ends inlet water tank by water circulating pump.The advantage of this method is a level stability in the work box, and no bubble is suitable for various solid light-gauge section bar flaw detection thickness measurings, but is not suitable for the bigger section bar of section, because section is too big, output just can't be protected.Also be not suitable for the flaw detection thickness measuring such as the steel pipe of open section, because during steel pipe turnover water tank, water can flow into the steel pipe inner chamber, the direct influence thickness measuring of detecting a flaw, and, cause the workplace environment abominable from the uncontrollable drop point of water that inner chamber releases.
The utility model content
Technical problem underlying to be solved in the utility model provides that no bubble produces in a kind of couplant supply process, and level stability, supersonic reflectoscope liquid coupling medium feedway that leakage rate is little.
The technical scheme that its technical matters that solves the utility model adopts is: supersonic reflectoscope liquid coupling medium feedway of the present utility model, comprise casing, have the hole that the detected workpiece of a pair of confession passes through on the top of casing, it is characterized in that: the inherent its underpart of described casing is provided with flexible utricule, and the last end periphery of this flexibility utricule is fixedlyed connected with casing; Be formed with cavity between described flexible utricule and the lower box inwall; Described casing be provided with the voltage supply that is connected with described cavity contract air into and out of draft tube, gas outlet.
During non-detection status, liquid coupling medium is positioned under the detected workpiece, the space on the flexible utricule.Behind injecting compressed air in the cavity of described lower box, increase gradually along with this cavity internal pressure, described flexible utricule is extruded distortion, and the compressing liquid coupling medium rises its liquid level gradually, is positioned at the part of casing until flooding detected workpiece.Stop injecting compressed air subsequently, liquid level stabilizing enters the testing state.When the afterbody of detected workpiece near by casing the time, the pressurized air in the described cavity is discharged, the couplant liquid level is very fast in the casing rolls back reference position under steady.
The beneficial effects of the utility model are, because the rising of couplant liquid level, smooth decreasing in the casing, no bubble produces, the couplant leakage rate is very little in testing process, and liquid level stabilizing is for improving and guaranteeing that accuracy of detection provides advantage, and can adapt to the needs that detect the different cross section shape workpiece, and lowered the operating cost of supersonic reflectoscope, and greatly improved production environment, can apply to industries such as machine-building, petrochemical complex widely.
As improvement of the technical scheme, for guaranteeing sealing effectiveness between cabinets cavity and the detected workpiece outside surface, described casing is provided with the packoff of realizing sealing between cabinets cavity and detected workpiece outside surface, the sealing device comprises inner cap, the enclosing cover that has on it with the suitable through hole of detected workpiece cross section shape, size, be provided with intermediate sleeve between inner cap, the enclosing cover, on this intermediate sleeve, be connected with around the circumferential air bag that fills, exits of detected workpiece cross section.After charging into pressurized air to this air bag, under the constraint of inner cap, enclosing cover and intermediate sleeve, air bag is along the radially inwardly expanse of inner cap, enclosing cover, and is close to the outside surface that detects workpiece, have good sealing effectiveness, can reduce the couplant leakage rate to greatest extent.
Description of drawings
This instructions comprises following three width of cloth accompanying drawings:
Fig. 1 is the structural representation of the utility model supersonic reflectoscope liquid coupling medium feedway;
Fig. 2 is the structural representation (the local amplification) of packoff in the utility model supersonic reflectoscope liquid coupling medium feedway;
Fig. 3 is that the utility model supersonic reflectoscope liquid coupling medium feedway applies to the synoptic diagram that steel pipe thickness detects embodiment.
Parts, position and numbering among the figure: detected workpiece 1, casing 10, cavity 11, draft tube 12, gas outlet 13, spout hole 14, flexible utricule 20, sewage draining exit 21, controller 30, solenoid valve 31, solenoid valve 32, supply establishment 33, last liquid level sensor 34, following liquid level sensor 35, solenoid valve 36, vent valve 37, packoff 40, inner cap 41, enclosing cover 42, air bag 43, intermediate sleeve 44, ultrasonic generator 50.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, supersonic reflectoscope liquid coupling medium feedway of the present utility model comprises casing 10, have the hole that the detected workpiece 1 of a pair of confession passes through on the top of casing 10, casing 10 inherent its underparts are provided with flexible utricule 20, and the last end periphery of this flexibility utricule 20 is fixedlyed connected with casing 10.Be formed with cavity 11 between flexible utricule 20 and casing 10 lower inner wall.Casing 10 be provided with the voltage supply that is connected with described cavity 11 contract air into and out of draft tube 12, gas outlet 13.The course of work of above-mentioned feedway is as follows: during non-detection status, liquid coupling medium is positioned at the space under the detected workpiece 1, on the flexible utricule 20; Behind injecting compressed air in the cavity 11 of casing 10 bottoms, increase gradually along with these cavity 11 internal pressures, flexible utricule 20 is extruded distortion, and the compressing liquid coupling medium rises its liquid level gradually, is positioned at the part of casing 10 until flooding detected workpiece 1; Stop injecting compressed air subsequently, liquid level stabilizing enters the testing state; When detected workpiece 1 near by casing 10 time, the pressurized air in the cavity 11 are discharged, the couplant liquid levels roll back reference position gradually down in the casing 10.
Keep the space for making between flexible utricule 20 and the casing 10, it is smooth to be convenient to pressurized air motion, is provided with supporting construction 22 between the bottom of flexible utricule 20 and casing 10.Supporting construction 22 can adopt woven wire as shown in Figure 1, and this woven wire is fixed on the casing 10, makes between the diapire, sidewall of flexible utricule 20 and casing 10 bottoms and maintains a certain distance and form cavity 11.
As shown in Figure 1, have spout hole 14, be used to overflow unnecessary liquid on the top of casing 10.Impurity for ease of in plant maintenance, the eliminating liquid can be provided with a sewage draining exit 21 that extends outside the casing 10 in the bottom of flexible utricule 20.
As shown in Figure 1, for ease of the convenient liquid coupling medium that replenishes in the casing 10, casing 10 is provided with the supply establishment 33 that is made up of feed tube and valve.
As shown in Figure 2, casing 10 is provided with the packoff 40 of realizing sealing between casing 10 inner chambers and detected workpiece 1 outside surface.Packoff 40 can adopt following version, promptly form by inner cap 41, intermediate sleeve 44, air bag 43 and enclosing cover 42, wherein on inner cap 41, enclosing cover 42, have with the suitable through hole of detected workpiece 1 shape of cross section, size and pass through for detected workpiece 1, intermediate sleeve 44 is between inner cap 41, enclosing cover 42, and air bag 43 is fixed within the intermediate sleeve 44.After air bag 43 is inflated by compressed air gas source, under the clamping constraint of inner cap 41, enclosing cover 42 and intermediate sleeve 44, air bag 43 is along the radially inwardly expanse of inner cap 41, enclosing cover 42, and be close to the outside surface that detects workpiece 1, have good sealing effectiveness, can reduce the couplant leakage rate to greatest extent.
As shown in Figure 1, solenoid valve 36 can be set between air bag 43 and compressed air gas source, between this solenoid valve 36 and air bag 43, vent valve 37 be set.When solenoid valve 36 is in opening, inflate to air bag 43 by compressed air gas source.When the sealing between needs releasing casing 10 inner chambers and detected workpiece 1 outside surface, when finishing or next workpiece when preparing to enter casing 10 as a workpiece sensing, solenoid valve 36 is in closed condition, the pressurized air that at this moment needs manual unlocking vent valve 37 to get rid of in the air bag 43.Certainly, vent valve 37 also can adopt solenoid valve to replace, and can be by controller 30 described later with itself and solenoid valve 31,32 centralized control that are used to control cavity 11 inflations, exhaust condition.
As Fig. 1, shown in Figure 3, in order to realize the centralized control of aforementioned liquid level, sealing, on the casing 10 inherent detected workpiece 1, the position under the spout hole 14 is provided with liquid level sensor 34, the position of detected workpiece below 1 is provided with down liquid level sensor 35, be provided with solenoid valve 31 between draft tube 12 and compressed air gas source, gas outlet 13 is provided with solenoid valve 32.Last liquid level sensor 34, following liquid level sensor 35, solenoid valve 31,32,36 are electrically connected with controller 30.Control procedure is as follows: upward liquid level sensor 34, following liquid level sensor 35 pass to controller 30 with detected liquid level signal, by the unlatching of controller 30 control electromagnetic valve 31,32 or close, air supplies that enter in the described cavity 11, discharge in the cavity 11 by gas outlet 13 by draft tube 12 by control and then the liquid level in the control casing 10; The unlatching of controller 30 control electromagnetic valve 36 or close, when outside the solenoid valve 36 during in opening, compressed air gas source is to air bag 43 inflations, and then realizes sealing between detected workpiece 1 and described casing 10.
Embodiment:
Fig. 3 is that the utility model supersonic reflectoscope liquid coupling medium feedway applies to the synoptic diagram that thickness of steel pipe detects.As shown in Figure 3, in the present embodiment, casing 10 is made up of upper and lower two casings, wherein on upper box, have the hole that the detected steel pipe of a pair of confession passes through, the outside in these two holes, respectively be set with a packoff 40 of between upper box inner chamber and detected outer surface of steel tube, realizing sealing on the sidewall of upper box, the version that packoff 40 adopts as shown in Figure 2, and solenoid valve 36 is set between air bag 43 and compressed air gas source, at solenoid valve 36 and air bag 43 vent valves 37.Several ultrasonic generators 50 are arranged in the upper box.Have spout hole 14 on the top of upper box and be provided with the supply establishment 33 that forms by feed tube and valve.On the inherent detected steel pipe of upper box, the position under the spout hole 14 is provided with liquid level sensor 34, the position below the detected steel pipe is provided with down liquid level sensor 35.
As shown in Figure 3, in lower box, be provided with a flexible utricule 20, the roof of lower box has a through hole that connects with upper box, the last end periphery of flexible utricule 20 is fixedlyed connected with the sidewall of this through hole, be formed with cavity 11 between the inwall of flexible utricule 20 and lower box, lower box be provided with the voltage supply that is connected with this cavity 11 contract air into and out of draft tube 12, gas outlet 13.Be provided with solenoid valve 31 between draft tube 12 and compressed air gas source, gas outlet 13 is provided with solenoid valve 32.Last liquid level sensor 34, following liquid level sensor 35, solenoid valve 31,32,36 are electrically connected with controller 30.
It is pointed out that top described principles more of the present utility model that just explain through diagrams, because the those of ordinary skill in constructed field is easy to carry out on this basis some modifications and change.Therefore, this instructions be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (10)
1, a kind of supersonic reflectoscope liquid coupling medium feedway comprises casing (10), has the hole that the detected workpiece of a pair of confession (1) passes through on the top of casing (10), it is characterized in that:
The inherent its underpart of described casing (10) is provided with flexible utricule (20), and the last end periphery of this flexibility utricule (20) is fixedlyed connected with casing (10);
Be formed with cavity (11) between described flexible utricule (20) and casing (10) lower inner wall;
Described casing (10) be provided with the voltage supply that is connected with described cavity (11) contract air into and out of draft tube (12), gas outlet (13).
2, supersonic reflectoscope liquid coupling medium feedway according to claim 1 is characterized in that: be provided with supporting construction (22) between the bottom of described flexible utricule (20) and the casing (10).
3, supersonic reflectoscope liquid coupling medium feedway according to claim 1, it is characterized in that: the top of described casing (10) has spout hole (14).
4, supersonic reflectoscope liquid coupling medium feedway according to claim 3, it is characterized in that: the position on the inherent detected workpiece of described casing (10) (1), under the spout hole (14) is provided with liquid level sensor (34), and the following position of detected workpiece (1) is provided with down liquid level sensor (35).
5, supersonic reflectoscope liquid coupling medium feedway according to claim 1 is characterized in that: described casing (10) is provided with the supply establishment (33) that is made up of feed tube and valve.
6, supersonic reflectoscope liquid coupling medium feedway according to claim 1 is characterized in that: the bottom of described flexible utricule (20) is provided with the sewage draining exit (21) that extends outside the casing (10).
7, supersonic reflectoscope liquid coupling medium feedway according to claim 1, it is characterized in that: described casing (10) is provided with the packoff (40) of realizing sealing between casing (10) inner chamber and detected workpiece (1) outside surface, sealing device (40) comprises and having on it and detected workpiece (1) shape of cross section, the inner cap of the through hole that size is suitable (41), enclosing cover (42), inner cap (41), be provided with intermediate sleeve (44) between the enclosing cover (42), on this intermediate sleeve (44), be connected with around circumferential the filling of detected workpiece (1) xsect, the air bag (43) of venting.
8, supersonic reflectoscope liquid coupling medium feedway according to claim 7, it is characterized in that: be provided with solenoid valve (36) between described air bag (43) and the compressed air gas source, be provided with vent valve (37) between this solenoid valve (36) and the air bag (43).
9, supersonic reflectoscope liquid coupling medium feedway according to claim 1 is characterized in that: be provided with solenoid valve (31) between described draft tube (12) and the compressed air gas source, described gas outlet (13) is provided with solenoid valve (32).
10, according to claim 4,8 or 9 described supersonic reflectoscope liquid coupling medium feedwaies, it is characterized in that:
Described upward liquid level sensor (34), following liquid level sensor (35), solenoid valve (31), (32), (36) are electrically connected with controller (30);
Described upward liquid level sensor (34), following liquid level sensor (35) pass to controller (30) with detected liquid level signal, by the unlatching of controller (30) control electromagnetic valve (31), (32) or close, air supply that enters in the described cavity (11), discharges in the described cavity (11) by gas outlet (13) by draft tube (12) by control and then the liquid level in the control casing (10);
The unlatching of described controller (30) control electromagnetic valve (36) or close, when outside the solenoid valve (36) during in opening, compressed air gas source is to described air bag (43) inflation, and then realizes sealing between detected workpiece (1) and described casing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105603 CN2762131Y (en) | 2004-12-16 | 2004-12-16 | Liquid coupling medium supply device for ultrasonic detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105603 CN2762131Y (en) | 2004-12-16 | 2004-12-16 | Liquid coupling medium supply device for ultrasonic detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762131Y true CN2762131Y (en) | 2006-03-01 |
Family
ID=36095251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420105603 Expired - Fee Related CN2762131Y (en) | 2004-12-16 | 2004-12-16 | Liquid coupling medium supply device for ultrasonic detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762131Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063747A (en) * | 2007-12-27 | 2013-04-24 | 昭和电工株式会社 | Ultrasonic flaw detection method for cast stick and ultrasonic flaw detection device |
| CN103278569A (en) * | 2013-05-03 | 2013-09-04 | 上海和伍新材料科技有限公司 | Method and system for water treatment and water circulation in ultrasonic detection equipment |
| CN104849355A (en) * | 2015-05-26 | 2015-08-19 | 云南大学 | Ultrasonic coupling device for detecting growth condition of plant stems |
| CN106770688A (en) * | 2016-12-19 | 2017-05-31 | 中国科学院武汉岩土力学研究所 | A kind of all-dimensional multi-angle sonic test servicing unit and servicing unit |
-
2004
- 2004-12-16 CN CN 200420105603 patent/CN2762131Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063747A (en) * | 2007-12-27 | 2013-04-24 | 昭和电工株式会社 | Ultrasonic flaw detection method for cast stick and ultrasonic flaw detection device |
| CN103063747B (en) * | 2007-12-27 | 2016-05-04 | 昭和电工株式会社 | The ultrasonic examination inspection method of cast rod and ultrasonic examination testing fixture |
| CN103278569A (en) * | 2013-05-03 | 2013-09-04 | 上海和伍新材料科技有限公司 | Method and system for water treatment and water circulation in ultrasonic detection equipment |
| CN104849355A (en) * | 2015-05-26 | 2015-08-19 | 云南大学 | Ultrasonic coupling device for detecting growth condition of plant stems |
| CN106770688A (en) * | 2016-12-19 | 2017-05-31 | 中国科学院武汉岩土力学研究所 | A kind of all-dimensional multi-angle sonic test servicing unit and servicing unit |
| CN106770688B (en) * | 2016-12-19 | 2019-10-01 | 中国科学院武汉岩土力学研究所 | A kind of all-dimensional multi-angle sonic test auxiliary device and auxiliary device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208155639U (en) | To can polluted-water be used for quickly detecting and sampling tool | |
| CN101629866A (en) | Detection machine universally used for air and water detection of sealing performance | |
| CN106289662A (en) | A kind of steel pipe sealing inflating pressure detection device | |
| CN106323562A (en) | Automatic positioning type leak-hunting detection method for inner container of water heater | |
| CN2762131Y (en) | Liquid coupling medium supply device for ultrasonic detector | |
| CN111307700A (en) | Device for testing corrosion resistance of Q345R steel for container | |
| CN111947853A (en) | Air window washer leakproofness inspection test platform | |
| CN102435398A (en) | Test unit of cavity sluice gate of nuclear power station reactor | |
| CN102141460A (en) | Airtightness test machine for titanium welded pipes | |
| CN205826233U (en) | A kind of water heater liner examination water detection equipment | |
| CN217084592U (en) | Concrete infiltration detection device | |
| CN101975645B (en) | Air tightness detection method of upper pond body on methane pond | |
| CN201438140U (en) | Universal detection machine for sealing performance air-water detection | |
| CN211057932U (en) | Water supply device for osmotic deformation instrument | |
| CN212407050U (en) | Welding type water bottom valve for centrifugal pump | |
| CN110926729B (en) | Tank detection device | |
| CN209961415U (en) | Testing arrangement convenient to test hydro-cylinder sealing member leakproofness | |
| CN206208467U (en) | Gas cylinder test device for air tightness | |
| CN106097862A (en) | A kind of coal and rock infiltration simple experimental device under adjustable artesian water pressure stabilization function | |
| CN112963362B (en) | Hydraulic-driven deep-well pump testing device and testing method thereof | |
| CN220399140U (en) | Pressure-resistant testing mechanism for aircraft heat exchanger | |
| CN205981651U (en) | Water tank advances drainage valve flow and sealing performance detection device | |
| CN215177943U (en) | Device for accurately measuring natural gas leakage flow of seabed cold spring | |
| CN216050526U (en) | Air tightness detection tool for small valve | |
| CN220231424U (en) | Pipeline washout corrosion detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20091216 |