CN209343990U - A kind of high-precision gas density monitor - Google Patents
A kind of high-precision gas density monitor Download PDFInfo
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- CN209343990U CN209343990U CN201821587640.7U CN201821587640U CN209343990U CN 209343990 U CN209343990 U CN 209343990U CN 201821587640 U CN201821587640 U CN 201821587640U CN 209343990 U CN209343990 U CN 209343990U
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Abstract
Including gas density relay shell, the intracorporal pedestal of shell, end seat, Baden pipe, temperature compensating element, signal regulation mechanism and several microswitches as signal generator is arranged in a kind of high-precision gas density monitor；The density monitor further includes the microswitch contact trigger element being fabricated by elastic material, microswitch contact trigger element one end is immobilized in the shell, the button of the other end and button-type microswitch is correspondingly arranged, and is resisted against on the button of each microswitch correspondingly；When gas density value changes, Baden pipe and temperature compensating element generate displacement, the displacement passes sequentially through the signal trigger mechanism and drives the microswitch contact trigger element, position change occurs for microswitch contact trigger element, so that the microswitch is generated corresponding signal, completes the function of gas density relay.The utility model has the advantages that precision is high, contact conduction property is good.
Description
Technical field
The utility model relates to a kind of gas density relay more particularly to a kind of high-precision gas density monitor, with
And the method for improving gas density relay precision.
Background technique
SF6And its mixed gas or other environment-friendly type outlet openings products have been widely used in power department, industrial and mineral enterprise
Industry promotes the fast development of power industry.And SF6The arc-extinguishing medium and dielectric of electric product is SF6Gas, Bu Nengfa
Raw gas leakage.If gas leakage occurs, it cannot guarantee SF6The reliable and secure operation of electric product.So monitoring SF6The SF of electric product6It is close
Angle value is very necessary.
A kind of pointer SF of machinery is generallyd use at present6Gas density relay monitors SF6Density works as SF6Electrically
The relay can be alarmed and is latched when gas leakage occurs for product, while can also displaying scene density value.The density monitor its connect
Point generally uses hairspring-type magnetic-type electrical contact, although increasing magnetic auxiliary suction.But this magnetic-type electrical contact density after
Electric appliance generally uses balance spring type electric contact, because movable contact is dynamic with pointer when density is higher than setting value, so
The power of balance spring cannot be big, and otherwise show value is just not allowed.In addition magnetic auxiliary suction can not be adjusted too big, otherwise density monitor
Return value will be very big, be more than technical standard.Therefore for magnetic-type electrical contact, since itself contact closure power is small,
Time is slightly long, if contact aoxidizes, contact will obstructed or contact it is unreliable.For no oil type, magnetic-type electrical contact contact is sudden and violent
In air, be very easy to oxidation or product has dust to dew, and contact is easy poor contact or obstructed.Special emphasis is, on edge
Haiti area, containing salt fog, is more easier that contact is caused to be easy poor contact or obstructed since there was dampness in the air.For oil-filled type,
Although magnetic-type electrical contact contact is immersed in silicone oil, but for a long time, and after movement for several times, contact performance can decline, in addition oil
Film has insulating effect, and contact also can poor contact or obstructed.Experiments have shown that there especially can have contact in low temperature to be unreliable existing
As.In addition, there is oil leak defect in density monitor, and for the density monitor of light leakage oil, magnetic-type electrical contact contact is just
Exposure in air, is very easy to oxidation or even product has dust, contact is easy poor contact or obstructed.
And existing market also develops the SF that a kind of contact uses microswitch6Gas density relay, the SF6Gas is close
Spending microswitch used by relay is band swing rod (or microswitch be equipped with motion arm), structure as shown in Figure 1, by
It is equipped with axis 903 in swing rod 902, axis 903 is arranged on microswitch 9.In order to set swing rod 902 can with flexible rotating, axis 903
Set on microswitch 9 just have gap, while swing rod 902 can also wave.Since the displacement of Baden pipe is also small, there is gap,
And generate and wave, it is not very stable for allowing for the precision of this density monitor in this way.Because swing rod has gap and waves
The reason of, so that the position of swing rod changes, the precision of this microswitch type density monitor will be caused to deviate,
It is not very stable, it is difficult to realize the high-precision of density monitor, as shown in Figure 1.Above-mentioned SF6Used by gas density relay
Although microswitch have the advantages that it is certain, due to its microswitch structure it is unreasonable, in use there are still with
Lower problem:
1) when vibrating, swing rod has gap, and position varies slightly, and will seriously affect the precision of density monitor.2)
Simultaneously in debugging, it is also difficult to the very quasi- of precision tune, that is, be difficult to make high-precision density monitor.
In summary, it is necessary to a kind of high-precision, high electrical property gas density relay is developed, to guarantee SF6
Or the electrical equipment reliably working of the gas-insulateds such as its mixed gas or arc extinguishing.
Utility model content
In order to solve the above problems existing in the present technology, the purpose of this utility model is to provide a kind of high-precision gas
Density monitor, for controlling and monitoring SF in sealing container6The density of equal gases, and it is directed to SF6In the electrical equipment of equal gases
The gas leakage situation of appearance issues alarm signal and block signal in time, to ensure that electric power safety plays a role.
A kind of high-precision gas density monitor, including gas density relay shell, setting are in the intracorporal pedestal of shell, end
Seat, Baden pipe, temperature compensating element, signal regulation mechanism and several microswitches as signal generator；The Baden pipe
One end be connected on the pedestal, the other end of the Baden pipe, which is connected to, sits up straight, one end of the temperature compensating element
It is sat up straight described in being connected to, the other end of the temperature compensating element is connected with signal regulation mechanism；
The microswitch is button-type microswitch；
The gas density relay further includes microswitch contact trigger element, microswitch contact trigger element one end
It is immobilized in the shell, the button of the other end and the button-type microswitch is correspondingly arranged, and is resisted against correspondingly each
On the button of microswitch；
When gas density value changes, the Baden pipe and temperature compensating element generate displacement, which passes sequentially through
The signal trigger mechanism can drive the microswitch contact trigger element, when gas density value changes to corresponding setting value
When, the microswitch contact trigger element just presses or the button far from the microswitch, generates the microswitch
Corresponding signal completes the function of gas density relay, and after gas density value restores normal, the Baden pipe and temperature are mended
It repays element and generates corresponding displacement, which passes sequentially through the signal trigger mechanism and drive the microswitch contact triggering member
Part, the microswitch contact trigger element be reset to gas density it is normal when state.
Further include display machine core, dial and pointer, one end of the temperature compensating element by display connecting rod with it is described
One end of the connection of display machine core or the temperature compensating element is directly connect with display machine core, and the pointer is installed on described aobvious
Show on machine core and is set to before the dial.
A kind of high-precision gas density monitor, including relatively independent signal control portion and indicating value display portion；Institute
Stating signal control portion includes control pedestal, control end seat, control Baden pipe, control temperature compensating element, signal regulation mechanism
And several microswitches as signal generator；One end of the control Baden pipe is connected on the control pedestal, described
The other end of control Baden pipe is connected in control end seat, and one end of the control temperature compensating element is connected to control end seat
On, the other end of the control temperature compensating element is connected with signal regulation mechanism；
The gas density relay further includes microswitch contact trigger element, microswitch contact trigger element one end
It is immobilized in the shell, the button of the other end and the button-type microswitch is correspondingly arranged, and is resisted against correspondingly each
On the button of microswitch；
When gas density value changes, driving Baden pipe and temperature compensating element generate displacement, which passes sequentially through
The signal trigger mechanism can drive the microswitch contact trigger element, when gas density value changes to corresponding setting value
When, the microswitch contact trigger element just presses or the button far from the microswitch, generates the microswitch
Corresponding signal completes the function of gas density relay, after gas density value restores normal, Baden pipe and temperature is driven to mend
It repays element and generates corresponding displacement, which passes sequentially through the signal trigger mechanism and drive the microswitch contact triggering member
Part, the microswitch contact trigger element be reset to gas density it is normal when state；
The indicating value display portion includes display Baden pipe, displays temperature compensating element, display base, display end seat, shows
Show machine core, dial and pointer, one end of the display Baden pipe is connected on the display base, the display Baden pipe
The other end is connected to display end and takes, and one end of the displays temperature compensating element, is connected to the display end and takes, described aobvious
The other end of temperature displaying function compensating element, by display connecting rod with it is described show machine core connect or the temperature compensating element it is another
One end is directly connect with the display machine core, and the pointer is installed on the display machine core and is set to before the dial.
It further include locating part, locating part limitation signal regulation mechanism moves in a certain range, the touching of microswitch contact
Hair element moves in its elastic range always；The signal regulation mechanism, which is equipped with, adjusts screw；It further include cushioning balance mechanism,
The antivibration that the cushioning balance mechanism improves density monitor is horizontal.
The shape of the microswitch contact trigger element is straight or bending shape；The microswitch contact triggering
The relative position of element and microswitch can be horizontal or with gradient.
The effective width of the microswitch contact trigger element front end and signal regulation mechanism contact site is 3-
18mm。
It further include position-limit mechanism, when density monitor is vibrated, which ensures signal regulation mechanism just
Movement in normal working range, and the position-limit mechanism signal regulation mechanism is limited in a setting and be greater than density and alarm
The corresponding position of value.
It further include auxiliary member, auxiliary member is fixed on the middle front end of microswitch contact trigger element, is can be improved altogether by elasticity
The local stiffness for the microswitch contact trigger element that material is fabricated.
The microswitch contact trigger element part width being fabricated by elastic material be reduce, or part be have it is scarce
Mouthful, or part is porose.
The temperature compensating element is bimetal leaf or the Baden pipe filled with gas.
The signal control part is arranged with anti-error operation mechanism.
The gas density relay further includes pressure sensor, temperature sensor, signal processing unit, and signal transmission is single
Member has remote transfer signal, realizes density on-line monitoring.
A method of improving gas density relay precision, comprising: gas density relay shell is arranged in shell
Pedestal, end seat, Baden pipe, temperature compensating element, signal regulation mechanism and several microswitches as signal generator；Institute
The one end for stating Baden pipe is connected on the pedestal, and the other end of the Baden pipe, which is connected to, sits up straight, the temperature-compensating member
One end of part, which is connected to, sits up straight, and the other end of the temperature compensating element is connected with signal regulation mechanism；The fine motion is opened
Closing is button-type microswitch；The gas density relay further includes microswitch contact trigger element, microswitch contact
Trigger element one end is immobilized in the shell, and the button of the other end and the button-type microswitch is correspondingly arranged, and is corresponded
Ground is resisted against on the button of each microswitch；
When gas density value changes, the Baden pipe and temperature compensating element generate displacement, which passes sequentially through
The signal trigger mechanism can drive the microswitch contact trigger element, when gas density value changes to corresponding setting value
When, the microswitch contact trigger element just presses or the button far from the microswitch, generates the microswitch
Corresponding signal completes the function of gas density relay, and after gas density value restores normal, the Baden pipe and temperature are mended
It repays element and generates corresponding displacement, which passes sequentially through the signal trigger mechanism and drive the microswitch contact triggering member
Part, the microswitch contact trigger element be reset to gas density it is normal when state.
When signal trigger mechanism generates displacement, microswitch contact trigger element is triggered by microswitch contact at this time
The elastic force of element itself also and then generates displacement by the thrust of signal trigger mechanism, when arriving setting value, opens the fine motion
It closes and issues corresponding alarm or block signal.And when gas density value is normal, the microswitch contact trigger element resets
To state of gas density when normal.
I.e. when the decline of the gas density of electrical equipment, the Baden pipe and temperature compensating element of gas density relay are generated
Displacement, signal trigger mechanism are also and then generated and are displaced, and microswitch contact trigger element also and then generates displacement at this time, to centainly
When degree, the microswitch is made to generate corresponding signal.
The utility model high-precision gas density monitor makes itself and prior art phase due to using above technical scheme
Than, have the characteristics that following clear advantage and:
1, due to using signal generator of the microswitch as density monitor, it is ensured that contact is reliably connected,
Guarantee system reliably working.
2, the microswitch contact trigger element being fabricated due to using elastic material, microswitch contact triggering
Elastic force of the element by microswitch contact trigger element itself or the thrust by signal trigger mechanism, make the microswitch
Issue corresponding alarm or block signal.And the microswitch contact trigger element that elastic material is fabricated is with microswitch
What correspondence was fixed together, it is very close to each other, it will not wave, and then precision would not be caused to be deteriorated, in vibration or transport, just
It will not influence the precision of density monitor, so that the precision of density monitor is very stable.Simultaneously in debugging, also it is easy to essence
Degree is adjusted very quasi-, it is easy to make high-precision density monitor.
Detailed description of the invention
In the following, in conjunction with attached drawing, the utility model is described in further detail:
Fig. 1 is the structural schematic diagram of the microswitch of prior art pointer-type gas density relay；
Fig. 2 is the structural schematic diagram of the high-precision gas density monitor of the utility model embodiment one；
Fig. 3 is the diagrammatic cross-section of the high-precision gas density monitor of the utility model embodiment one；
Fig. 4 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment one
Figure；
Fig. 5 is the diagrammatic cross-section of the high-precision gas density monitor of the utility model embodiment two；
Fig. 6 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment two
Figure；
Fig. 7 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment three
Figure；
Fig. 8 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment four
Figure；
Fig. 9 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment five
Figure；
Figure 10 is the diagrammatic cross-section of the high-precision gas density monitor of the utility model embodiment six；
Figure 11 is a kind of implementation of microswitch contact trigger element of the high-precision gas density monitor of the utility model
Example diagram；
Figure 12 is that the microswitch contact trigger element of the high-precision gas density monitor of the utility model is another real
Apply example diagram；
Figure 13 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment seven
Figure.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The utility model is illustrated and illustrates for providing a kind of high-precision gas density relay.Referring specifically to figure
2, Fig. 3 and Fig. 4, Fig. 2 and Fig. 3 are the part section signal of the sulfur hexafluoride gas density relay of the utility model embodiment one
Figure, as shown in Figure 2, Figure 3 and Figure 4, the utility model embodiment one discloses a kind of high-precision gas density monitor, with SF6
For gas density relay.The utility model high-precision SF6Gas density relay is mainly by connector 1, display machine core 2, table
Shell 3, dial 4, pointer 5, Baden pipe 6, temperature-compensating plate 7 (width 5.5-18mm), junction block 8, several (present case with
For three) microswitch 91,92,93, printed circuit board 10, fixed plate 11, signal regulation mechanism 12, several adjust screw
131,132,133, pull rod 14, watch crystal 15, cover circle 16, position-limit mechanism 17, end seat 18, pedestal 19, the triggering of microswitch contact
The composition such as element 201,202,203, locating part 21, microswitch contact trigger element fixing piece 22, anti-error operation mechanism 23.Its
In, connector 1 is fixed on watchcase 3, and display machine core 2 is fixed on pedestal 19.One end of Baden pipe 6 be welded on pedestal 19 and with
Connection, the other end is welded in end seat 18.And end seat 18 is connected with one end of temperature-compensating plate 7, temperature-compensating plate 7 it is another
One end is connected with signal regulation mechanism 12.It is fixed in signal regulation mechanism 12 that there are three adjust screw 131,132,133.Signal
Regulating mechanism 12 is connected with connecting rod 15 again, and connecting rod 15 is connected with display machine core 2 again.Three microswitches 91,92,93 are distinguished
It is fixed on printed circuit board 10, printed circuit board 10 is fixed in fixed plate 11, and fixed plate 11 is in turn mounted on pedestal 19.It is micro-
Dynamic switch 91,92,93 is all button-type microswitch, is respectively provided with button 9101,9201,9301.The triggering of microswitch contact
Element 201,202,203 is fabricated by high performance elastic material, have well elasticity, in certain field of load or
Elastic failure problem will not occur in motion range, and there is memory function, deformation, Ke Yiyou can be restored after external force disappearance
The elastic material of the high performances such as 65Mn steel, beryllium-bronze, phosphor bronze, spring steel, titanium-nickel alloy is fabricated, can also be by having
The nonmetallic materials of the plastic material of memory function are fabricated, or are fabricated by the metal material with memory function；
Outside titanium-nickel alloy, it is also possible to the elastic material with high performance such as gold-cadmium alloy, copper-zinc alloy and is fabricated.Fine motion
Make and break contact trigger element 201,202,203 is immobilized in the shell by microswitch contact trigger element fixing piece 22, fine motion
Make and break contact trigger element 201,202,203 is correspondingly arranged with microswitch 91,92,93 respectively, i.e., microswitch contact triggers
Element 201,202,203 is correspondingly arranged with the button 9101,9201,9301 of microswitch 91,92,93 respectively, and fine motion is opened
Coila trigger element 201,202,203 is correspondingly arranged at each top for adjusting screw 131,132,133, as shown in figure 4, its
In, microswitch contact trigger element 201 is fixed on the top for adjusting screw 131, and microswitch contact trigger element 202 is fixed
In the top for adjusting screw 132, microswitch contact trigger element 203 is fixed on the top for adjusting screw 133.Locating part 21 is solid
It is scheduled in shell, locating part 21 is correspondingly arranged with microswitch contact trigger element 201,202,203.Pointer 5 and dial 4 divide
It is not fixed on display machine core 2.The signal contact of microswitch is connected on junction block 8 by electric wire from printed circuit board 10,
Junction block 8 is fixed on watchcase 3.Watch crystal 15, cover circle 16 are separately fixed on watchcase 3, its internal mechanism can be protected from machine
Tool damage and dirt, rainwater invade.Position-limit mechanism 17 is immobilized in the shell, and there are gaps between signal regulation mechanism 12.Limit
The effect of position mechanism 17 is, when switch divide-shut brake generates vibration, to prevent signal regulation mechanism 12 from axially generating excessively along it
Displacement prevents adjusting screw 131,132,133 from blocking or being detached from showing for microswitch contact trigger element 201,202,203
As guaranteeing system reliably working.In the present embodiment, the shape of microswitch contact trigger element 201,202,203 is straight；It is micro-
The relative position of dynamic make and break contact trigger element 201,202,203 and microswitch 91,92,93 is horizontal；Temperature-compensating member
Part 7 is made for bimetal leaf material, or is the compensation Baden pipe filled with gas.
In addition, relay is also provided with anti-error operation mechanism 23, and when density monitor is vibrated, the false action-proof machine
Structure 23 can limit the amplitude of Baden pipe 6, signal regulation mechanism 12, thus be greatly improved the resistance to shock of relay, guarantee
System reliably working.
The action principle of the utility model high-precision gas density monitor is to utilize temperature based on elastic element Baden pipe 6
The pressure and temperature of 7 pairs of compensating plate variations of degree is modified, the variation of reaction gas density.I.e. in measured medium (such as SF6)
Under the pressure effect of gas, because of the effect of temperature-compensating plate 7, the variation of density value, pressure value also changes accordingly,
It forces the end of Baden pipe 6 to generate corresponding flexible deformation-displacement to be passed to aobvious by means of temperature-compensating plate 7 and connecting rod 15
Show that machine core 2, display machine core 2 pass to pointer 5 again, then indicate tested gas density value on dial 4.If leakage
Gas, density value decline (reach alarm or locking value) to a certain extent, and Baden pipe 6 generates accordingly to bottom offset, passes through
Temperature-compensating plate 7 makes signal regulation mechanism 12 to bottom offset, and the adjusting screw 131,132,133 in signal regulation mechanism 12 is just
Gradually from corresponding microswitch contact trigger element 201,202,203, microswitch contact trigger element 201,202,203 is just gradually
Button 9101,9201,9301 from corresponding microswitch 91,92,93, to a certain extent when, corresponding microswitch 91,
92,93 contacts are switched on, and are generated corresponding signal (alarm or locking), are reached monitoring and control the gas in the equipment such as electric switch
Volume density makes electrical equipment trouble free service.If its density value increases, pressure value also increases accordingly, is increased to certain journey
Degree, Baden pipe 6 are also generated and are shifted up accordingly, by temperature-compensating plate 7, shift up signal regulation mechanism 12, signal
Adjusting screw 131,132,133 on regulating mechanism 12 just shifts up, and just pushes corresponding microswitch contact trigger element
201, it 202,203 shifts up, so that the contact of microswitch 91,92,93 be made just to disconnect, signal (alarm or locking) is just solved
It removes.In the present embodiment, temperature compensating element 7 can be made by two independent bimetal leaf materials, i.e., contact controls
The temperature compensating element that part has a bimetal leaf material to be made, and display portion has another bimetal leaf material
The temperature compensating element being made.It can be further improved temperature-compensating performance in this way, improve the precision of density monitor.Separately
Outside, when gas density value changes, the Baden pipe 6 and temperature compensating element 7 will generate displacement, which passes sequentially through
The signal trigger mechanism 12 can drive the microswitch contact trigger element 201,202,203.When gas density value becomes
When changing to corresponding setting value (when such as alarming value or when locking value), the microswitch contact trigger element 201,202,203 is sent out
Raw corresponding deformation and the button far from the microswitch, make the microswitch 91,92,93 generate corresponding signal, complete
The function of gas density relay, and after gas density value restores normal, the Baden pipe 6 and temperature compensating element 7 also can
Corresponding displacement is generated, which passes sequentially through the signal trigger mechanism 12 and drive the microswitch contact trigger element
201,202,203, the microswitch contact trigger element deformation is reset to original state, or be restored to gas density it is normal when
Corresponding state.In short, when the decline of the gas density of electrical equipment, the Baden pipe 6 of gas density relay and temperature-compensating
Element 7 generate displacement, signal trigger mechanism 12 also and then generate displacement, at this time microswitch contact trigger element (201,202,
203) also and then generate displacement, to a certain extent when, so that the microswitch (91,92,93) is generated corresponding signal.In a word when
Gas density value changes, and the Baden pipe 6 and temperature compensating element 7 generate displacement, which passes sequentially through the signal
Trigger mechanism 12 can drive the microswitch contact trigger element 201,202,203, when gas density value changes to accordingly
When setting value, the microswitch contact trigger element 201,202,203 makes described micro- far away from the button of the microswitch
Dynamic switch generates corresponding signal, completes the function of gas density relay, after gas density value restores normal, the Baden
Pipe and temperature compensating element generate corresponding displacement, which passes sequentially through the signal trigger mechanism and the microswitch is driven to connect
Point trigger element, the microswitch contact trigger element be reset to gas density it is normal when state.I.e. gas density is normal
When, microswitch contact trigger element presses the button of microswitch, and when gas density decline, the triggering of microswitch contact
For element far away from the button of microswitch, microswitch has normally-open normally-close contact.
It the microswitch and adjusts screw and is not limited to three, can also be one, two, four or multiple.
Fig. 5 is the partial cutaway schematic of the sulfur hexafluoride gas density relay of the utility model embodiment two, such as Fig. 5
With shown in Fig. 6, microswitch contact trigger element 201,202,203 is correspondingly arranged under each adjusting screw 131,132,133
Side, i.e. microswitch contact trigger element 201 are fixed on the lower section for adjusting screw 131, and microswitch contact trigger element 202 is solid
It is scheduled on the lower section for adjusting screw 132, microswitch contact trigger element 203 is fixed on the lower section for adjusting screw 133.Locating part 21
It is immobilized in the shell, locating part 21 is correspondingly arranged with microswitch contact trigger element 201,202,203.If electrical equipment leaks
Gas, density value decline (reach alarm or locking value) to a certain extent, and Baden pipe 6 generates accordingly to bottom offset, passes through
Temperature-compensating plate 7 makes signal regulation mechanism 12 to bottom offset, and the adjusting screw 131,132,133 in signal regulation mechanism 12 is just
Close to corresponding microswitch contact trigger element 201,202,203, microswitch contact trigger element 201,202,203 is just connect
The button 9101,9201,9301 of nearly corresponding microswitch 91,92,93, to a certain extent when, microswitch contact triggering member
Just pressing drives corresponding 91,92,93 contact of microswitch to part 201,202,203 respectively, generates (the alarm of corresponding signal
Or locking), reach monitoring and control the gas density in the equipment such as electric switch, makes electrical equipment trouble free service.If its is close
Angle value increases, and pressure value also increases accordingly, increases to a certain extent, Baden pipe 6 is also generated and shifted up accordingly, is passed through
Temperature-compensating plate 7 shifts up signal regulation mechanism 12, and the adjusting screw 131,132,133 in signal regulation mechanism 12 is just
It shifts up, elastic force of the corresponding microswitch contact trigger element 201,202,203 in own resilient and microswitch push-button
It is just shifted up under effect, so that the contact of microswitch 91,92,93 be made just to disconnect, signal (alarm or locking) is just released.
Equally, the adjusting screw 131,132,133 that locating part 21 limits signal regulation mechanism 12 moves in a certain range, protects micro-
Dynamic make and break contact trigger element 201,202,203 moves in its elastic range always, microswitch contact trigger element 201,
202,203 will not occur elastic failure problem in this certain field of load, it is ensured that high-precision to realize and ensure contact essence
The long-time stability of degree.The adjusting screw of microswitch contact trigger element 201,202,203 front end and signal regulation mechanism 12
131,132,133 effective widths for being in contact position are 4.0-18mm, improve vibration resistance.The embodiment, when gas density value
It changes, the Baden pipe 6 and temperature compensating element 7 generate displacement, which passes sequentially through the signal trigger mechanism 12
The microswitch contact trigger element 201,202,203, when gas density value changes to corresponding setting value, institute can be driven
The button that microswitch contact trigger element 201,202,203 just presses the microswitch is stated, the microswitch is generated
Corresponding signal completes the function of gas density relay.When i.e. gas density is normal, microswitch contact trigger element is separate
Microswitch does not press the button of microswitch, and when gas density decline, microswitch contact trigger element just presses micro-
The button of dynamic switch.Microswitch has normally-open normally-close contact.
Fig. 7 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment three
Figure, as shown in fig. 7, the shape of microswitch contact trigger element 201,202,203 is bending, microswitch contact triggering member
The relative position band of part 201,202,203 and microswitch 91,92,93 is gradient.In the embodiment, when gas density value is sent out
Changing, the Baden pipe 6 and temperature compensating element 7 generate displacement, which passes sequentially through 12 energy of signal trigger mechanism
The microswitch contact trigger element 201,202,203 is enough driven, it is described when gas density value changes to corresponding setting value
Microswitch contact trigger element 201,202,203 does not press the button of microswitch far away from the button of the microswitch,
So that the microswitch is generated corresponding signal, completes the function of gas density relay.When i.e. gas density is normal, fine motion is opened
Coila trigger element presses the button of microswitch, and when gas density decline, microswitch contact trigger element is with regard to remote
Button from microswitch.
Fig. 8 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment four
Figure, as shown in figure 8, when electrical equipment gas density is normal, microswitch contact trigger element 201,202,203 be pressing against it is micro-
The button 9101,9201,9301 of dynamic switch 91,92,93.When gas leakage, the tune of signal trigger mechanism 12 is relied on respectively
The thrust for saving screw 131,132,133 makes microswitch contact trigger element 201,202,203 generate displacement, is respectively further from micro-
The button 9101,9201,9301 of dynamic switch 91,92,93, when arriving setting value, make the microswitch issue alarm accordingly or
Block signal.
Fig. 9 is the microswitch signal structure explanation of the high-precision gas density monitor of the utility model embodiment five
Figure, as shown in figure 9, the adjusting screw 131,132,133 of signal trigger mechanism 12 pushes away when electrical equipment gas density is normal
Power makes microswitch contact trigger element 201,202,203 press against the button 9101,9201,9301 of microswitch 91,92,93.
When gas leakage, signal trigger mechanism and its adjusting screw are generated and are displaced, separate microswitch contact trigger element, and fine motion
Make and break contact trigger element rely on respectively itself elastic force and microswitch push-button itself elastic force so that microswitch contact touch
Button 9101,9201,9301 of the element far from microswitch 91,92,93 is sent out, when arriving setting value, issues the microswitch
Corresponding alarm or block signal.When gas leakage, signal trigger mechanism and its adjusting screw generate displacement, open far from fine motion
Coila trigger element, and microswitch contact trigger element relies on the elastic force of itself, so that microswitch contact trigger element
Button 9101,9201,9301 far from microswitch 91,92,93 when arriving setting value, issues the microswitch corresponding
Alarm or block signal.When gas leakage, signal trigger mechanism and its adjusting screw generate displacement, far from microswitch contact
Trigger element, and microswitch contact trigger element relies on the elastic force of microswitch push-button itself, so that microswitch contact touches
Button 9101,9201,9301 of the element far from microswitch 91,92,93 is sent out, when arriving setting value, the microswitch issues phase
The alarm answered or block signal.
Figure 10 is the diagrammatic cross-section of the high-precision gas density monitor of the utility model embodiment six, as shown in Figure 10
A kind of high-precision gas density monitor, including relatively independent signal control portion and indicating value display portion；Signal control part
Point include control pedestal 19, control end seat 18A, control Baden pipe 6A, control temperature compensating element 7A, signal regulation mechanism 12 and
Several microswitches 91,92,93 as signal generator；One end of control Baden pipe 6A is connected on control pedestal 19, control
The other end of Baden pipe 6A processed be connected to control temperature compensating element 7A one end, control temperature compensating element 7A the other end with
Signal regulation mechanism 12 is connected.Microswitch 91,92,93 is button-type microswitch, which further includes
The microswitch contact trigger element 201,202,203 being fabricated by elastic material, microswitch contact trigger element 201,
202,203 one end are immobilized in the shell, and the button of the other end and the button-type microswitch 91,92,93 is correspondingly arranged, and one
One is accordingly resisted against on the button of each microswitch.When gas density value changes, control Baden pipe 6A and control are warm
It spends compensating element, 7A and generates displacement, the adjusting screw 131,132,133 which passes sequentially through signal trigger mechanism 12 drives respectively
Dynamic microswitch contact trigger element 201,202,203, microswitch contact trigger element 201,202,203 occur position and change
Become, so that microswitch 91,92,93 is generated corresponding signal respectively, complete the function of gas density relay.The high-precision gas
Density monitor includes cushioning balance mechanism 24, which has supporting role to signal trigger mechanism 12, into one
The antivibration that step improves density monitor is horizontal.In addition the high-precision gas density monitor adjustably installs a position-limit mechanism
25, the position-limit mechanism 25 is being limited in a setting for signal regulation mechanism 12 and be greater than the correspondence of density alarming value with flexible
Position also can be further improved the resistance to shock of density monitor.
Meanwhile the high-precision density monitor of the embodiment, it further include relatively independent indicating value display portion, such as Figure 10 institute
Show, the indicating value display portion include display Baden pipe 6B, displays temperature compensating element, 7B, display base 19, display end seat 18B,
Show machine core 2, dial and pointer 5.One end of display Baden pipe 6B is connected on display base 19, and the other end passes through display end
Seat 18B is connected with one end of displays temperature compensating element, 7B, and the other end of displays temperature compensating element, 7B passes through display connecting rod 14
It is connect with display machine core 2 or the other end of temperature compensating element 7B is directly connect with display machine core 2, pointer 5 is installed on display
It on machine core 2 and is set to before dial, is used to indicate gas density value.Present case control pedestal and display base are combined into one
Body, can also be seperated.
In addition, the high-precision gas density monitor of the utility model can also include pressure sensor, temperature sensor,
Signal processing unit, signal transmission unit have remote transfer signal, realize density on-line monitoring.
A kind of method of the raising gas density relay precision of the utility model, as shown in Figure 2, Figure 3, Figure 4, the density
Relay includes: including gas density relay shell 3, the pedestal being arranged in shell 3 19, end seat 18, Baden pipe 6, temperature
Compensating element, 7, signal regulation mechanism 12 and several microswitches 91,92,93 as signal generator；One end of Baden pipe 6
It is connected on pedestal 19, the other end of Baden pipe 6, which is connected to, sits up straight on 18, and one end of temperature compensating element 7, which is connected to, sits up straight 18
On, the other end of temperature compensating element 7 is connected with signal regulation mechanism 12；Microswitch 91,92,93 is that button-type fine motion is opened
It closes；The gas density relay further includes the microswitch contact trigger element 201,202,203 being fabricated by elastic material,
201,202,203 one end of microswitch contact trigger element is immobilized in the shell by fixing piece 22, the other end and the button
The button 9101,9201,9301 of type microswitch is correspondingly arranged, and is resisted against the button of each microswitch correspondingly
9101, on 9201,9301；When gas density value changes, Baden pipe 6 and temperature compensating element 7 generate displacement, the displacement according to
The secondary adjusting screw 131,132,133 by signal trigger mechanism 12, the adjusting screw 131,132,133 respectively drive fine motion and open
Position change occurs respectively, makes for coila trigger element 201,202,203, microswitch contact trigger element 201,202,203
The microswitch 91,92,93 generates corresponding signal, completes the function of gas density relay.I.e. when the gas of electrical equipment
When volume density declines, the Baden pipe 6 and temperature compensating element 7 of gas density relay generate displacement, signal trigger mechanism 12
And then generate displacement, at this time microswitch contact trigger element 201,202,203 also and then generate displacement, to a certain extent when,
The microswitch 91,92,93 is set to generate corresponding signal.In short, when signal trigger mechanism 12 generates displacement, fine motion at this time
Make and break contact trigger element 201,202,203 by microswitch contact trigger element 201,202,203 itself elastic force or according to
By the thrust of the adjusting screw 131,132,133 of signal trigger mechanism 12, make microswitch contact trigger element 201,202,203
Also displacement is and then generated, when arriving setting value, the microswitch is made to issue corresponding alarm or block signal.
The innovative point and core point of the utility model are: the microswitch contact being fabricated due to using elastic material
Trigger element, the microswitch contact trigger element are touched by the elastic force of microswitch contact trigger element itself or by signal
The thrust for sending out mechanism makes the microswitch issue corresponding alarm or block signal.And the fine motion that elastic material is fabricated
Make and break contact trigger element and microswitch be it is corresponding be fixed together, it is very close to each other, will not wave, and then would not make
It is deteriorated at precision, in vibration or transport, the precision of density monitor would not be influenced, so that the precision of density monitor is very steady
It is fixed.It simultaneously in debugging, is also easy to the very quasi- of precision tune, it is easy to make high-precision density monitor.While by
In using signal generator of the microswitch as density monitor, it is ensured that contact is reliably connected, and guarantees that system is reliable
Work ensures electric power netting safe running, can apply well in SF6On the electrical equipment of equal gases.By contrast test, from table
1 using the contact precision of the density monitor of the art of this patent, stability than the density monitor of the prior art as can be seen that had
There is better performance, there is substantive distinguishing features outstanding and significant progress, microswitch type density can be greatly improved
The precision and stability of relay ensures the reliable and secure operation of power grid.
It is from table 1 it is recognised that very good using the contact precision of the density monitor of the art of this patent, stability, reach
Density monitor adaptive capacity to environment can be improved in high-precision requirement.Simultaneously, it is important to which its stability is very good, Bu Huiyi
Vibration will be such that precision becomes.
The contact performance comparison table of the density monitor of the density monitor and prior art of 1 the art of this patent of table
Microswitch contact trigger element it is single can to form the triggering of microswitch contact with integrated design, as shown in figure 11
Member, can also mutually indepedent seperated design.In addition, as shown in figure 11,203 front end of microswitch contact trigger element, two side baffle
Height be 2.6-18mm, the front end of microswitch contact trigger element 203 can also be respectively equipped with one piece of end plate B, end plate B with
Two side baffle C together the front end of microswitch contact trigger element 203 collectively form one can limit adjust screw be detached from it is micro-
The semi enclosed area of dynamic make and break contact trigger element 203.After the measure, the high-precision gas density monitor of the utility model
It can avoid microswitch contact trigger element when switching divide-shut brake generation vibration and adjust screw displacement, and make to adjust
Screw will not guarantee system reliably working there is a phenomenon where blocking or being detached from microswitch contact trigger element.It substantially increases
The resistance to shock of product.Meanwhile each microswitch contact trigger element front end can be set as square with the position that screw contacts is adjusted
Shape plate, the width of the rectangular plate are 4.4-8mm, avoid microswitch contact trigger element and adjust screw displacement,
And make to adjust screw will not be there is a phenomenon where blocking or being detached from microswitch contact trigger element, guarantee system reliably working, into
The resistance to shock of one step raising product.It as shown in figure 11, further include auxiliary member 26, auxiliary member 26 is fixed on the touching of microswitch contact
Send out the middle front end of element.Purpose is to improve the local stiffness for the microswitch contact trigger element being fabricated by elastic material,
Due to being fixed on the middle front end of microswitch contact trigger element, but still ensure the fine motion being fabricated by elastic material
Make and break contact trigger element is subjected to displacement the supporting point of (or the deformation such as bending).When ensuring that contact movement in this way and returning
Difference in an appropriate range, it is ensured that the differential gap of density monitor meets relevant criterion.
As shown in figure 12, the width of the local E for the microswitch contact trigger element being fabricated by elastic material is
It reduces.That is the width at the E of part is small than the width of front end.Or part is jaggy, or part be it is porose,
At F.In this way, it is equal to the rigidity for improving the front end for the microswitch contact trigger element being fabricated by elastic material,
Difference when ensuring that contact movement in this way and returning is in an appropriate range, it is ensured that the differential gap of density monitor
Meet relevant criterion.In short, the microswitch contact trigger element shape being fabricated by elastic material be it is various, fix
Mode is also multiplicity.In addition, microswitch contact trigger element can be triggered with integrated design group as microswitch contact
Unit, as shown in figure 12；It can also mutually indepedent seperated design；Or sectoral integration design, part are individually designed.
It is that the shape of the microswitch contact trigger element can be straight or bending as shown in Fig. 4, Fig. 7, Figure 13,
I.e. its shape can be straight or be bent into different angle.
In addition, the hull outside package of the density monitor can be equipped with insulating layer, the influence of the temperature difference is reduced.
In addition it can take: between the pallet of rear, the pallet and shell being equipped with anti-vibration pad, (such as spring is kept away
Vibration pad), machine core can also the machine core with damping mechanism or indicating value display portion be antivibration machine core (specific antivibration machine core packet
Include torsional spring), density monitor shell be filled with the measures such as shockproof oil, improve resistance to shock.
And the microswitch and pedestal is located at the two sides of signal regulation mechanism, i.e. microswitch distinguishes position
In the top of signal regulation mechanism corresponding thereto；Or the microswitch and pedestal is located at signal regulation mechanism
Side, i.e. microswitch are located at the lower section of signal regulation mechanism corresponding thereto.
The high-precision density monitor of the utility model technology can also include the holding mechanism after signalizing activity, and
It can also include the holding mechanism and resetting-mechanism after signalizing activity.
In short, those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Utility model, and being not used as the restriction to the utility model, if in the spirit of the utility model, to
Variation, the modification of the upper embodiment will all be fallen in the Claims scope of the utility model.
Claims (10)
1. a kind of high-precision gas density monitor, including gas density relay shell, setting are in the intracorporal pedestal of shell, end
Seat, Baden pipe, temperature compensating element, signal regulation mechanism and several microswitches as signal generator；The Baden pipe
One end be connected on the pedestal, the other end of the Baden pipe, which is connected to, sits up straight, one end of the temperature compensating element
It is sat up straight described in being connected to, the other end of the temperature compensating element is connected with signal regulation mechanism；It is characterized in that,
The microswitch is button-type microswitch；
The gas density relay further includes microswitch contact trigger element, and microswitch contact trigger element one end is fixed
In shell, the button of the other end and the button-type microswitch is correspondingly arranged, and is resisted against each fine motion correspondingly
On the button of switch；
When gas density value changes, the Baden pipe and temperature compensating element generate displacement, which passes sequentially through institute
It states signal trigger mechanism and drives the microswitch contact trigger element, it is described when gas density value reaches corresponding setting value
The pressing of microswitch contact trigger element or the button far from the microswitch make the microswitch generate corresponding letter
Number, complete the function of gas density relay；
After gas density value restores normal, the Baden pipe and temperature compensating element generate corresponding displacement, which successively leads to
It crosses the signal trigger mechanism and drives the microswitch contact trigger element, the microswitch contact trigger element is reset to
State when gas density is normal.
2. high-precision gas density monitor as described in claim 1, which is characterized in that further include display machine core, dial
And pointer, one end of the temperature compensating element is connect by display connecting rod with the display machine core or temperature-compensating member
One end of part is directly connect with display machine core, and the pointer is installed on the display machine core and is set to before the dial.
3. a kind of high-precision gas density monitor, including relatively independent signal control portion and indicating value display portion；It is described
Signal control portion include control pedestal, control end seat, control Baden pipe, control temperature compensating element, signal regulation mechanism and
Several microswitches as signal generator；One end of the control Baden pipe is connected on the control pedestal, the control
The other end of Baden pipe processed is connected in control end seat, and one end of the control temperature compensating element is connected in control end seat,
The other end of the control temperature compensating element is connected with signal regulation mechanism；It is characterized in that,
The gas density relay further includes microswitch contact trigger element, and microswitch contact trigger element one end is fixed
In shell, the button of the other end and the button-type microswitch is correspondingly arranged, and is resisted against each fine motion correspondingly
On the button of switch；
When gas density value changes, Baden pipe and temperature compensating element is driven to generate displacement, which passes sequentially through institute
The microswitch contact trigger element can be driven by stating signal trigger mechanism, when the variation of gas density value reaches corresponding setting value
When, the microswitch contact trigger element just presses or the button far from the microswitch, generates the microswitch
Corresponding signal completes the function of gas density relay；
After gas density value restores normal, Baden pipe and temperature compensating element is driven to generate corresponding displacement, which successively leads to
It crosses the signal trigger mechanism and drives the microswitch contact trigger element, the microswitch contact trigger element is reset to
State when gas density is normal；
The indicating value display portion includes display Baden pipe, displays temperature compensating element, display base, display end seat, display machine
One end of core, dial and pointer, the display Baden pipe is connected on the display base, described to show the another of Baden pipe
End is connected to display end and takes, and one end of the displays temperature compensating element, is connected to the display end and takes, the display temperature
The other end of degree compensating element, is connect by display connecting rod with the display machine core or the other end of the temperature compensating element
It is directly connect with the display machine core, the pointer is installed on the display machine core and is set to before the dial.
4. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: further include locating part, locating part
Limitation signal regulation mechanism moves in a certain range, and microswitch contact trigger element is transported in its elastic range always
It is dynamic；The signal regulation mechanism, which is equipped with, adjusts screw；It further include cushioning balance mechanism, which improves density relay
The antivibration of device is horizontal.
5. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: the microswitch contact
The shape of trigger element is straight or bending shape；The relative position of the microswitch contact trigger element and microswitch can
With horizontal or having with gradient, described microswitch contact trigger element front end and signal regulation mechanism contact site
Effect width is 3-18mm.
6. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: further include position-limit mechanism, close
When degree relay is vibrated, which ensures that signal regulation mechanism moves in normal range of operation, and the limit
The signal regulation mechanism is limited in a corresponding position setting and greater than density alarming value by mechanism.
7. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: further include auxiliary member, auxiliary member
It is fixed on the middle front end of microswitch contact trigger element, the microswitch contact touching being fabricated by elastic material can be improved altogether
Send out the local stiffness of element.
8. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: be fabricated by elastic material
Microswitch contact trigger element part width be reduce, or part is jaggy, or part is porose.
9. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: the temperature compensating element is
Bimetal leaf or Baden pipe filled with gas, the signal control part are arranged with anti-error operation mechanism.
10. high-precision gas density monitor as claimed in claim 1 or 3, it is characterised in that: the gas density relay
It further include pressure sensor, temperature sensor, signal processing unit, signal transmission unit has remote transfer signal, realizes that density exists
Line monitoring.
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| CN201821587640.7U CN209343990U (en) | 2018-09-28 | 2018-09-28 | A kind of high-precision gas density monitor |
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| CN201821587640.7U CN209343990U (en) | 2018-09-28 | 2018-09-28 | A kind of high-precision gas density monitor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411893A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | A kind of gas density monitor and system with contact point signal output |
| CN110426315A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and system of electromechanical integration |
| CN110426316A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of economical gas density detecting device and system |
| CN110441194A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of gas density relay of self-test contact contact resistance |
| CN110850278A (en) * | 2019-09-04 | 2020-02-28 | 上海卓电电气有限公司 | Electromechanical integrated gas density relay |
| CN111654107A (en) * | 2020-06-11 | 2020-09-11 | 国家电网有限公司华东分部 | Equipment switch state analysis system based on image recognition |
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2018
- 2018-09-28 CN CN201821587640.7U patent/CN209343990U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411893A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | A kind of gas density monitor and system with contact point signal output |
| CN110426315A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and system of electromechanical integration |
| CN110426316A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of economical gas density detecting device and system |
| CN110441194A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of gas density relay of self-test contact contact resistance |
| CN110850278A (en) * | 2019-09-04 | 2020-02-28 | 上海卓电电气有限公司 | Electromechanical integrated gas density relay |
| CN111654107A (en) * | 2020-06-11 | 2020-09-11 | 国家电网有限公司华东分部 | Equipment switch state analysis system based on image recognition |
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