A kind of vibration pointer type sulfur hexafluoride gas tensimeter
Technical field
The utility model relates to a kind of tensimeter, relates in particular to a kind of vibration pointer type sulfur hexafluoride gas tensimeter that is applied on the sulfur hexafluoride electrical equipment.
Background technology
The sulfur hexafluoride electric product has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.The reliable and secure operation that guarantees the sulfur hexafluoride electric product has become one of vital task of power department.The arc-extinguishing medium of sulfur hexafluoride electric product and insulating medium are sulfur hexafluoride gas; Can not leak gas; If leak gas, just can not guarantee the reliable and secure operation of sulfur hexafluoride electric product, so the sulfur hexafluoride force value of monitoring sulfur hexafluoride electric product or density value are very necessary.
The existing equipment that is used for monitoring sulfur hexafluoride gas pressure or density is a kind of mechanical pointer tensimeter or density meter, and it has the on-the-spot performance that shows force value or density value.Tensimeter or density meter body and joint join, in the tensimeter or density meter of this structure.As depicted in figs. 1 and 2, the tensimeter of this structure or density meter comprise housing 1, movement 2, end seat 3, temperature compensating element (connecting rod) 4, pedestal 5, index dial 6, pointer 7, table cover 8 and the Baden manage 9.Wherein, Baden pipe 9 is to be arranged on housing 1 with the mode that its opening direction is positioned at the four-quadrant on the planimetric coordinates that horizontal center line and vertical center line by index dial constitute.During sulfur hexafluoride electrical equipment, because the insufficient strength of Baden's pipe 9 is big, make the fluctuation of Baden's pipe 9 big, thereby the displacement that is delivered to movement 2 is just big in operation, pointer 7 amplitudes of fluctuation are also big, its antivibration ability just a little less than.In order to improve its vibration resistance, generally all in housing 1, be filled with silicone oil, but because on making, the ubiquity oil leakage phenomenon.Leakage of oil taking place for the user, have only again and change, causes direct economic loss.
Therefore, but demand developing a kind of oil-filled resistance to shock good sulfur hexafluoride gas tensimeter or density meter of not needing urgently.
Summary of the invention
In order to solve the problems referred to above that prior art exists; The purpose of the utility model is to provide a kind of vibration pointer type sulfur hexafluoride gas tensimeter; Its resistance to shock is good, range of application is big, particularly in the occasion of low-pressure (rated pressure is lower than 0.1Mpa), is used for keeping watch on airtight container SF
6The pressure of gas or its mixed gas or density value, and to SF
6The gas leakage situation that occurs in the electrical equipment is in time indicated, for ensureing that electric power safety plays effect.
To achieve these goals; The utility model adopts following technical scheme: a kind of vibration pointer type sulfur hexafluoride gas tensimeter; Comprise housing, be positioned at housing openend index dial and be arranged on pedestal, Baden pipe, end seat, connecting rod, movement and the pointer of this housing, said Baden manages c-shaped, and is located at coaxially in the said housing with said index dial; Its end is welded on the said pedestal and is communicated with it, and the other end is welded on the said end seat.Wherein: the said Guan Yiqi of Baden opening direction is arranged in the first quartile of the planimetric coordinates that horizontal center line and vertical center line by said index dial constitute or the mode of second quadrant is provided with; So that said pedestal is positioned on the horizontal center line of said index dial, said end seat is positioned on the vertical center line of said index dial.
Above-mentioned vibration pointer type sulfur hexafluoride gas tensimeter, wherein: the xsect of said Baden pipe is rectangular or oval, and its width is 16~40mm.
Above-mentioned vibration pointer type sulfur hexafluoride gas tensimeter; Wherein: said index dial is directly installed on the said movement or through transition piece and is installed on the said pedestal; So that the third quadrant of scale index line in said planimetric coordinates on the index dial deasil extends to four-quadrant; Perhaps said index dial is directly installed on the said pedestal, so that the four-quadrant of scale index line in said planimetric coordinates on the index dial deasil extends to first quartile.
Above-mentioned vibration pointer type sulfur hexafluoride gas tensimeter, wherein: said connecting rod is a temperature compensating element, this temperature compensating element is the compensation Baden pipe that bimetallic material or airtight has been filled with the gas that temperature compensation uses.
Above-mentioned vibration pointer type sulfur hexafluoride gas tensimeter, wherein: described movement has damping mechanism.
Adopted above-mentioned technical scheme; Make that the utility model vibration pointer type sulfur hexafluoride gas tensimeter can suit to use in various transformer stations; Control and the pressure or the density of keeping watch on sulfur hexafluoride gas in the airtight container are applied on the sulfur hexafluoride electrical equipment, to the gas leakage situation that occurs in the sulfur hexafluoride electrical equipment simultaneously; Can show immediately, for ensureing that electric power safety plays effect.Because to the improvement of Baden pipe, make that the fluctuation of Baden's pipe is little and intensity increases, the displacement that is delivered to movement like this is just little, and the beat of pointer is just little, and its antivibration ability is just strong.Therefore, the vibration pointer type sulfur hexafluoride gas tensimeter of the utility model has the advantage of not being afraid of vibration, can not fill silicone oil, overcomes the leakage of oil problem fully, can be applied in well on the sulfur hexafluoride electrical equipment of different environments for use.
Explanation in addition, the described a kind of vibration pointer type sulfur hexafluoride gas tensimeter of the utility model comprises sulfur hexafluoride gas density table and sulfur hexafluoride gas mixture tensimeter or density meter.
Description of drawings
Fig. 1 is a kind of structural representation of prior art pointer sulfur hexafluoride gas gauge;
Fig. 2 is the inner structure synoptic diagram of Fig. 1;
Fig. 3 is the manometric a kind of structural representation of the vibration pointer type sulfur hexafluoride gas of the utility model;
Fig. 4 is the inner structure synoptic diagram of Fig. 3;
Fig. 5 is the manometric second kind of structural representation of the vibration pointer type sulfur hexafluoride gas of the utility model;
Fig. 6 is manometric the third structural representation of the vibration pointer type sulfur hexafluoride gas of the utility model;
Fig. 7 is manometric the 4th kind of structural representation of the vibration pointer type sulfur hexafluoride gas of the utility model;
Fig. 8 is the inner structure synoptic diagram of Fig. 7;
Fig. 9 is the schematic internal view of manometric the 5th kind of structure of the vibration pointer type sulfur hexafluoride gas of the utility model.
Embodiment
In order to understand the technical scheme of the utility model better, below through embodiment particularly and combine accompanying drawing at length to explain:
See also Fig. 3 and Fig. 4; The vibration pointer type sulfur hexafluoride gas tensimeter of the utility model, comprise joint, housing 1, be positioned at housing 1 openend index dial 6 and be arranged on pedestal 5, Baden pipe 9, end seat 3, connecting rod 4, movement 2, transition piece 10 and the pointer 7 of this housing 1.Wherein, joint is fixed on the housing 1 and with outside sulfur hexafluoride electrical equipment and is connected; Movement 2 is fixed on pedestal 5 or housing 1 inside; Pedestal 5 all is arranged in the housing 1 with end seat 3, and end seat 3 is connected with an end of connecting rod 4, and the other end of connecting rod 4 is connected with movement 2.Index dial 6 is connected on the pedestal 5 through transition piece 10, and guarantees that index dial 6 is upright, is accustomed to and makes things convenient for reading.Connecting rod 4 is a temperature compensating element, and this temperature compensating element is the compensation Baden pipe that bimetallic material or airtight has been filled with the gas that temperature compensation uses.Watch glass, table lid cover on the index dial 6 successively and are fixed on the housing 1, can protect its internal mechanism to avoid mechanical damage and invade with dirt, rainwater, or housing 1 is sealed, and reach the function of absolute pressure gauge.
It is 9 c-shaped that manage the Baden, and its xsect is rectangular or oval, and its end is welded on the pedestal 5 and is communicated with it, and the other end is welded on the end seat 3.In order to improve resistance to shock; This Baden pipe 9 is positioned at the first quartile of the planimetric coordinates that horizontal center line and vertical center line by index dial 6 constitute and is located at housing 1 with index dial 6 coaxial modes with its opening direction; So that on the horizontal center line of pedestal 5 near index dial 6, on end seat 3 the vertical center line near index dial 6.Width with Baden's pipe 9 is increased to 16~40mm in addition, also can improve the resistance to shock of Baden's pipe 9.
Because the position of Baden's pipe 9 is arranged like this, has improved Baden's pipe 9 and has received force direction.When the operation sulfur hexafluoride electrical equipment, make the intensity of Baden's pipe 9 increase, make that like this fluctuation of Baden's pipe 9 is little, the displacement that is delivered to movement 2 like this is just little, and pointer 7 swings are just little, and its antivibration ability is just strong.Reach the resistance to shock of further raising density meter, improve the quality of products greatly.In addition; Owing to increased transition piece 10, index dial 6 just can be installed on the transition piece 10 through fixture, can guarantee that index dial 6 is upright; Be that the third quadrant of scale index line in planimetric coordinates deasil extends to four-quadrant, be accustomed to and make things convenient for reading.
Fig. 5 is the second kind of pointer sulfur hexafluoride gas gauge or the density meter of the utility model; Index dial 6 can directly be installed on the movement 2 through fixture; Guarantee that like this index dial 6 is upright; Be that the third quadrant of scale index line in planimetric coordinates deasil extends to four-quadrant, be accustomed to and make things convenient for reading.
Fig. 6 is the third pointer sulfur hexafluoride gas gauge or density meter of the utility model; Index dial 6 is to be directly installed on the pedestal 5 through fixture; Index dial 6 is edge-on like this; Be that the four-quadrant of scale index line in planimetric coordinates deasil extends to first quartile, this moment, its resistance to shock improved.
Fig. 7 and Fig. 8 are the 4th kind of the pointer sulfur hexafluoride gas gauge or the density meter of the utility model; Baden pipe 9 is positioned at second quadrant of the planimetric coordinates that horizontal center line and vertical center line by index dial 6 constitute and is located at housing 1 with index dial 6 coaxial modes with its opening direction; So that on the horizontal center line of pedestal 5 near index dial 6, on end seat 3 the vertical center line near index dial 6.Because the position of Baden's pipe 9 is arranged like this, has changed the force direction that receives of Baden's pipe 9, when the operation sulfur hexafluoride electrical equipment; Make the intensity of Baden's pipe 9 increase, make that like this fluctuation of Baden's pipe 9 is little, the displacement that is delivered to movement 2 like this is just little; Pointer 7 swings are just little, and its antivibration ability is just strong.Reach the resistance to shock of further raising density meter, improve the quality of products greatly.Index dial 6 is connected on the pedestal 5 through transition piece 10 in addition, can guarantee that index dial 6 is upright, and promptly the third quadrant of scale index line in planimetric coordinates deasil extends to four-quadrant, is accustomed to and makes things convenient for reading.
Fig. 9 is the 5th kind of the pointer sulfur hexafluoride gas gauge or the density meter of the utility model; Wherein, Pedestal 5 prolongs and is fixed on the centre of watchcase 1, and index dial 6 is to be directly installed on the pedestal 5 through fixture, guarantees that like this index dial 6 is upright; Be that the third quadrant of scale index line in planimetric coordinates deasil extends to four-quadrant, be accustomed to and make things convenient for reading.
Pointer pressure of the utility model or the movement of density meter 2 can also have damping mechanism, further improve its resistance to shock.
The action principle of the utility model density meter is based on flexible member Baden pipe 9, utilizes the pressure and temperature of 4 pairs of variations of temperature compensating element to revise, the variation of reaction sulfur hexafluoride gas density.Promptly under the pressure effect of measured medium sulfur hexafluoride gas, because the effect of temperature compensating element 4, the variation of its density value have been arranged; Force value also changes accordingly; Force the not end of Baden's pipe 9 to produce corresponding elastic deformation-displacement,, pass to movement 2 by means of temperature compensating element 4; Movement 2 passes to pointer 7 again, by tested sulfur hexafluoride gas density value is indicated on index dial 6.
In sum, the utility model makes the force direction that receives of Baden's pipe 9 obtain changing owing to the position of Baden's pipe 9 is arranged like this; When the operation sulfur hexafluoride electrical equipment,, make the intensity of Baden's pipe 9 increase owing to adopt such improvement; Make like this that the fluctuation of Baden pipe 9 is little and intensity increases; The displacement that is delivered to movement 2 like this is just little, and pointer 7 swings are just little, and its antivibration ability is just strong.Can further improve the resistance to shock of density meter, improve the quality of products greatly.Said density meter can also comprise having the teletransmission communication function.
Those of ordinary skill in the art will be appreciated that; Above embodiment only is used for explaining the utility model; And be not the qualification that is used as the utility model; As long as in the connotation scope of the utility model, all will drop in claims scope of the utility model variation, the modification of the above embodiment.