CN204116321U - For sealing and the preactivate device of micro-water detecting instrument - Google Patents
For sealing and the preactivate device of micro-water detecting instrument Download PDFInfo
- Publication number
- CN204116321U CN204116321U CN201420612195.0U CN201420612195U CN204116321U CN 204116321 U CN204116321 U CN 204116321U CN 201420612195 U CN201420612195 U CN 201420612195U CN 204116321 U CN204116321 U CN 204116321U
- Authority
- CN
- China
- Prior art keywords
- sealing
- preactivate
- balancing tank
- guide shell
- micro
- 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
Abstract
The utility model provides a kind of sealing for micro-water detecting instrument and preactivate device, comprise sealing and balancing tank and the guide shell running through sealing and balancing tank, the guide shell sidewall being positioned at sealing and balancing tank offers opening, described opening is provided with and the conducting of sealing and balancing tank and closed gear mechanism; The detecting unit detected for micro-water is arranged in guide shell; Drying agent is provided with in sealing and balancing tank outside described guide shell.The utility model be used for the sealing of micro-water detecting instrument and preactivate apparatus structure simple, reasonable, compact, effectively can ensure that in guide shell, detecting unit is in pre-activated state, adopt micro-water detecting instrument of sealing and preactivate device can realize micro-water fast, accurately and detect.
Description
Technical field
The utility model relates to detection technique, particularly relates to a kind of sealing for micro-water detecting instrument and preactivate device.
Background technology
SF
6the arc extinction performance of gas due to its excellence and the insulating property of high strength, be widely used in high voltage electric equipment.But SF
6the long-term high voltage of gas runs and will cause decomposing, and its analyte and the reaction of moisture in it can generate poisonous and harmful product, not only can reduce SF
6electric property, and these poisonous and harmful products enter air and also will constitute a threat to health of human body, and the portion of product sucking minute quantity just can causing death, so be necessary that the moment monitors SF
6the water cut of gas, analyzes the prevention ahead of time of its variation tendency, in order to avoid cause a serious accident.
Conventional portable declines under the detection probe of water pick-up unit is generally all exposed to normal temperature, normal wet environment, and the SF in high voltage electric equipment
6water cut minimum (General Requirements is less than 300ppm), direct-detection can be too high due to the humidity on detection probe surface, and produce the state being similar to " liquor-saturated oxygen ", can not to SF
6detect.Therefore the conventional portable water pick-up unit that declines is adopted to need to exit in a large number to high voltage electric equipment, the humidity of detection probe is declined, thus " waking up " detection probe, but so not only contaminated environment, the air pressure in high voltage electric equipment more can be caused not enough, need follow-up tonifying Qi, extremely bother, detection time also needs half an hour more than.Therefore, urgently a kind of detection probe that can make before detection keeps the sealing of state of activation and preactivate system.
Utility model content
The purpose of this utility model is, decline under water detecting instrument probe is generally all exposed to normal temperature, normal wet environment for above-mentioned conventional portable, detecting head surface humidity is high, exist measure inaccurate, Measuring Time long, need to put SF in a large number
6the problems such as gas, propose a kind of sealing for micro-water detecting instrument and preactivate device, and this apparatus structure is simple, is positioned over by detecting unit in this device, can sensor is kept for a long time to be in pre-activated state, can carry out accurate fast measurement at any time.
For achieving the above object, the technical solution adopted in the utility model is: a kind of sealing for micro-water detecting instrument and preactivate device, described sealing and preactivate device comprise sealing and balancing tank and run through the guide shell of sealing and balancing tank, the guide shell sidewall being positioned at sealing and balancing tank offers opening, described opening is provided with and makes the sensor in guide shell contact the gear mechanism with isolation with the air in sealing and balancing tank, in the sealing and balancing tank outside described guide shell, be provided with molecular sieve desiccant; Described sealing and balancing tank is provided with the gas transmission sealed interface of sealing gas piping and the Electricity Federation sealed interface of sealing Electricity Federation;
Further, described gear mechanism comprises the gear set and microelectromechanical-systems that gear slide sleeve and driven gear sliding sleeve horizontally slip, and described microelectromechanical-systems is engaged with gear slide sleeve by gear set.
Further, described microelectromechanical-systems is actuating unit, and be preferably micro-step motor, described micro-step motor is engaged with gear slide sleeve by gear set.
Further, O-ring seal is provided with between described gear slide sleeve and guide shell.
Further, described sealing and balancing tank is the sealed shell of tank with certain accommodation space, and described sealing and balancing tank can keep balance and the sealing of sealing and preactivate unit humidity.
Owing to having drying agent in sealing and balancing tank, so when instrument does not enter measuring state, gear slide sleeve slides to non-notch on one side, guide shell exposes breach, detecting unit in guide shell and the conducting of sealing and balancing tank, humidity balances, due to very dry in sealing and balancing tank, so detecting unit is in low moisture environments, sensor is in pre-activated state all the time.When instrument start is measured, gear slide sleeve slides to jagged, and guide shell breach is closed, detecting unit and the isolation of sealing and balancing tank, tested SF
6gas flows through guide shell, and the detecting unit in guide shell just can the humidity of direct measurement gas, and can not be subject to the interference of sealing and balancing tank dry environment.Due in sealing and balancing tank and external environment be also seal isolation, therefore, this low moisture environments can keep for a long time, makes humidity sensor be in pre-activated state all the time, can enter Quick Measurement at any time.Current is all in normal temperature, normal wet lower measurement with quasi-instrument, must when measurement through the activation stage, and this process is carried out by above-mentioned design by the utility model in advance before measuring automatically, thus reaches the object measured efficiently, accurately and fast.
Further, described guide shell setup of entrances and exits has angle coupling and rapid-acting coupling.
Further, described drying agent is molecular sieve.
Further, described drying agent is laid on sealing and balancing pot bottom, and its laying depth is 1/10 of balance tank height.
Further, described sealing and balancing tank bottom surface is provided with through hole, and described through hole adopts rubber blanket and sealing nut sealing.
Further, described guide shell working sections is long-pending is no more than 0.5cm
2.
Further, described gas transmission sealed interface, with O RunddichtringO, ensures seal request when inner gas piping passes through sealing and balancing tank.
Further, described Electricity Federation sealed interface have employed fluid sealant many battery core cast structure, to ensure seal request when electric signal and power supply pass through sealing and balancing tank.
The utility model be used for the sealing of portable micro-water detecting instrument and preactivate apparatus structure simple, reasonable, compact, have the following advantages compared with prior art:
(1), the utility model is used for sealing and the preactivate device of portable micro-water detecting instrument, in the non-detection period, sealing and preactivate device in guide shell opening unlatching, be exposed in dry environment, make the detecting unit being arranged in opening be in micro-water state of preactivate always; During detection, close opening and make guide shell inner isolated with dry environment, in guide shell, pass into gas to be detected, because being in pre-activated state before detecting unit always, therefore the detection of micro-water can be realized fast and accurately;
(2), the guide shell working sections that adopts of the utility model is long-pending less, is generally no more than 0.5cm
2, only need to flow through a small amount of SF
6gas can be measured, and makes detection become very convenient and quick, the impact of testing process on equipment under test and the discharge to atmospheric environment is all reached minimum;
(3), described sealing and balancing pot bottom is provided with through hole, and the drying agent in sealing and balancing tank can be replaced by this through hole, makes the utility model portable micro-water pick-up unit energy Long-Time Service.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model sealing and preactivate device inner draft tube assembly;
Fig. 2 be the utility model sealing and preactivate device inner draft tube assembly with the left pseudosection of power and gear train.
Fig. 3 is the cut-open view of the utility model sealing and preactivate device.
Wherein: 1-guide shell; 2-gear slide sleeve; 3-transfers sea whelk; 4-angle coupling; 5-guide shell erecting frame; 6-rapid-acting coupling; 7-O-ring seal; 8-gear set; 9-micromotor; 10-sensor board; 11-mounting seat; 12-sealing and balancing tank; 13-gas piping; 14 rubber blankets; 15-sealing nut; 16-gas transmission sealed interface; 17-Electricity Federation sealed interface.
Embodiment
Below in conjunction with embodiment, the utility model is further illustrated:
Embodiment 1
Present embodiment discloses a kind of for SF
6the sealing of the micro-water detecting instrument of gas and preactivate device, this device effectively can activate measuring sensor in advance and be in state to be measured all the time, and effectively low moisture environments is isolated before starting measurement, eliminate low moisture environments to the impact of measuring, thus reach object that is accurate, Quick Measurement.
Sealing and preactivate device comprise as shown in Figure 3: sealing and balancing tank 12, guide shell assembly, power and gear train etc.
Wherein, mounting seat 11 is fixed on sealing and balancing tank 12, and guide shell 1 runs through sealing and balancing tank 12, and guide shell 1 is fixed in sealing and balancing tank by guide shell erecting frame 5, mounting seat 11 particularly.Guide shell 1 two ends being positioned at sealing and balancing tank 12 offer opening, and opening is by the gas IO interface outside switching sea whelk 3, angle coupling 4, rapid-acting coupling 6 and gas piping 13 communication seals balance tank.Switching sea whelk 3 is in order at one end SF to be measured
6gas is connected with guide shell 1 by angle coupling 4, allows gas enter in guide shell, at the other end with same structure, by the SF surveyed
6gas is discharged outside sealing and balancing 12 tank.The structure of switching sea whelk 3 is one and is connected with angle coupling by screw thread, and one is passed through a recessed plane and is connected with guide shell.
Guide shell 1 overcoat has sealing mechanism, and close sealing mechanism and guide shell 1 inner space and sealing and balancing tank can be made to completely cut off, namely guide shell 1 inner space is not communicated with sealing and balancing tank.Particularly, in the present embodiment, sealing mechanism comprises coaxial sleeve and is located at gear slide sleeve 2 outside guide shell 1 and O-ring seal 7.In the present embodiment, sealing mechanism also comprises gear slide sleeve 2 can be made along guide shell 1 power and gear train in axial sliding, when gear slide sleeve 2 covers opening part, guide shell 1 inner space and sealing and balancing tank can be made to completely cut off.The present embodiment medium power mechanism is micromotor 9, and micromotor 9 is engaged with gear slide sleeve 2 by gear set 8.Guide shell assembly is also provided with sealing and balancing tank 12 outward, and sealing and balancing tank 12 is for having the tank body of certain accommodation space, and sealing and balancing tank can keep the balance of sealing unit humidity and the sealing to environment, ensures that sensor can realize preactivate.
In the present embodiment, guide shell 1 sectional area is 0.5cm
2, only need a small amount of SF
6gas flows through can be measured, and makes detection become very convenient and quick.Be provided with drying agent in sealing and balancing tank outside guide shell 1, the drying agent that the present embodiment adopts is molecular sieve, long service life, and approximately using 1 ~ 2 year just needs to change.Drying agent is laid on bottom annular seal space 4, and its laying depth is 1/10 of sealing and balancing tank height.Sealing and balancing tank bottom surface is provided with through hole, and through hole adopts rubber blanket 14 and sealing nut 15 to seal.
Seal request when the gas transmission sealed interface 16 in the present embodiment, sealing and balancing tank arranged and Electricity Federation sealed interface 17 ensure that gas piping 13 and Electricity Federation system pass through sealing and balancing tank.
For the sealing of micro-water monitoring instrument and the principle of work of preactivate device as follows:
When not carrying out micro-water and detecting, the sealing mechanism place opening of the guide shell 1 in sealing and balancing tank 12, gear slide sleeve 2 does not cover on opening; Detecting unit (comprising the sensor board 10 being integrated with various sensor) is sealed in sealing and balancing tank 12, and sealing and balancing tank 12 is due to the effect of drying agent, and inner air is in micro-water state always, and now, sensor is in pre-activated state.When carrying out micro-water and detecting, close the sealing mechanism of guide shell 1, gear slide sleeve 2, along guide shell 1 axial sliding movement, until close with switching sea whelk 3, makes to form airtight space in guide shell 1; Now, owing to being in micro-water state before detecting unit always, as long as tested gas flows through, at once just can to SF
6every numerical value of gas detects, and whole detection time is no more than 5 minutes, and high voltage electric equipment only need release a small amount of SF
6gas, makes detection become very convenient and quick, the impact of testing process on tested high voltage electric equipment and the discharge to atmospheric environment is reached minimum.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. the sealing for micro-water detecting instrument and preactivate device, it is characterized in that, comprise sealing and balancing tank and the guide shell running through sealing and balancing tank, the guide shell sidewall being positioned at sealing and balancing tank offers opening, described opening is provided with and makes the sensor in guide shell contact the gear mechanism with isolation with the air in sealing and balancing tank, the detecting unit detected for micro-water is arranged in guide shell; Drying agent is provided with in described sealing and balancing tank; Described sealing and balancing tank is provided with the gas transmission sealed interface of sealing gas piping and the Electricity Federation sealed interface of sealing Electricity Federation.
2. sealing and preactivate device according to claim 1, is characterized in that, described gear mechanism comprises the gear set and microelectromechanical-systems that gear slide sleeve and driven gear sliding sleeve horizontally slip, and described microelectromechanical-systems is engaged with gear slide sleeve by gear set.
3. seal according to claim 2 and preactivate device, it is characterized in that, described microelectromechanical-systems is micro-step motor.
4. seal according to claim 2 and preactivate device, it is characterized in that, between described gear slide sleeve and guide shell, be provided with O-ring seal.
5. seal according to claim 1 and preactivate device, it is characterized in that, described drying agent is molecular sieve.
6. seal according to claim 1 and preactivate device, it is characterized in that, described sealing and balancing tank bottom surface is provided with through hole, and described through hole adopts rubber blanket and sealing nut sealing.
7. sealing and the sealing and balancing tank of preactivate device according to claim 1, it is characterized in that, described drying agent is laid on sealing and balancing pot bottom, and its laying depth is 1/10 of sealing and balancing tank height.
8. seal according to claim 1 and preactivate device, it is characterized in that, described guide shell working sections is long-pending is no more than 0.5cm
2.
9. seal according to claim 1 and preactivate device, it is characterized in that, described gas transmission sealed interface is with O RunddichtringO.
10. seal according to claim 1 and preactivate device, it is characterized in that, described Electricity Federation sealed interface adopts fluid sealant many battery core cast structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612195.0U CN204116321U (en) | 2014-10-22 | 2014-10-22 | For sealing and the preactivate device of micro-water detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612195.0U CN204116321U (en) | 2014-10-22 | 2014-10-22 | For sealing and the preactivate device of micro-water detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116321U true CN204116321U (en) | 2015-01-21 |
Family
ID=52333618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612195.0U Active CN204116321U (en) | 2014-10-22 | 2014-10-22 | For sealing and the preactivate device of micro-water detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204116321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280521A (en) * | 2014-10-22 | 2015-01-14 | 湖州爱迪电气有限公司 | Sealing and pre-activating device used for micro-water detecting instrument |
-
2014
- 2014-10-22 CN CN201420612195.0U patent/CN204116321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280521A (en) * | 2014-10-22 | 2015-01-14 | 湖州爱迪电气有限公司 | Sealing and pre-activating device used for micro-water detecting instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103017991B (en) | Suction type SF6 gas leakage monitoring method | |
| CN105203710A (en) | Sulfur hexafluoride (SF6) gas monitoring device of high-voltage electrical device, method and system | |
| CN203881678U (en) | Portable SF6 detection device underground coal mine | |
| CN203146025U (en) | Multi-parameter sensor for coal mine | |
| CN202008455U (en) | Circular flow measurement type on-line monitoring transmitter for SF6 micro-water and density | |
| CN104535456A (en) | Novel sulfur hexafluoride gas density micro-water transmitter | |
| CN204116321U (en) | For sealing and the preactivate device of micro-water detecting instrument | |
| CN206945640U (en) | A kind of electric locomotive compressed air quality on-line computing model | |
| CN202693564U (en) | Comprehensive sulfur hexafluoride gas detection device | |
| CN110850240A (en) | High tension switchgear partial discharge ozone on-line monitoring device | |
| CN101839959A (en) | Method and device for locating electrical failure of SF6 equipment | |
| CN210426906U (en) | Waterproof test fixture | |
| CN202916062U (en) | Suction-type SF6 gas leakage monitoring device | |
| CN104267160A (en) | Portable trace moisture detection device | |
| CN104280521A (en) | Sealing and pre-activating device used for micro-water detecting instrument | |
| CN209542219U (en) | Sulfur hexafluoride leakage monitor | |
| CN204307835U (en) | Air electrode of zinc-air battery anti-permeability testing arrangement | |
| CN204165859U (en) | The micro-water transmitter of a kind of novel sulfur hexafluoride gas density | |
| CN204594860U (en) | A kind of ammonia and VOC toxic and harmful nanocomposite optical sensor | |
| CN206514975U (en) | Fluorescence fiber temperature measurement device applied to high-tension switch cabinet | |
| CN207662873U (en) | A kind of adsorbent media service life instruction device of dry type spy tail-gas processing equipment | |
| CN201740843U (en) | SF6 equipment electrical failure location device | |
| CN203071425U (en) | High-tension switchgear having self-checking function | |
| CN205067450U (en) | Intelligent gas property analytical equipment of environmental protection | |
| CN201716265U (en) | SF6 environmental monitoring device based on infrared difference method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |