CN201662467U - Pointer type sulfur hexafluoride gas density meter with wide Burdon tube - Google Patents
Pointer type sulfur hexafluoride gas density meter with wide Burdon tube Download PDFInfo
- Publication number
- CN201662467U CN201662467U CN2010201206738U CN201020120673U CN201662467U CN 201662467 U CN201662467 U CN 201662467U CN 2010201206738 U CN2010201206738 U CN 2010201206738U CN 201020120673 U CN201020120673 U CN 201020120673U CN 201662467 U CN201662467 U CN 201662467U
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- baden
- sulfur hexafluoride
- wide
- pipe
- pointer
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Abstract
The utility model provides a pointer type sulfur hexafluoride gas density meter with a wide Burdon tube, which comprises a shell, and a base, a Burdon tube, a temperature compensating element, end base, a machine core and a pointer which are arranged in the shell. The base is fixed on the shell; one end of the Burdon tube is welded on and communicated with the base, and the other end thereof is connected with one end of the temperature compensating element by the end base; and the inner diameter of the shell is less than or equal to 75mm, and the width of the Burdon tube is 15.5-40mm. The pointer type sulfur hexafluoride gas density meter with the wide Burdon has the advantage of good shock proof, and can be well applied to sulfur hexafluoride electrical devices.
Description
Technical field
The utility model relates to a kind of sulfur hexafluoride (SF that is applied in
6) density meter on the electrical equipment, relate in particular to a kind of pointer sulfur hexafluoride gas density table with wide Baden pipe.
Background technology
Sulfur hexafluoride (SF
6) electric product has been widely used in power department, industrial and mining enterprises have promoted the fast development of power industry.Guarantee SF
6The reliable and secure operation of electric product has become one of vital task of power department.SF
6The arc-extinguishing medium of electric product and insulating medium are SF
6Gas can not leak gas, if leak gas, just can not guarantee SF
6The reliable and secure operation of electric product.So monitoring SF
6The SF of electric product
6Density value is very necessary.Be used for monitoring SF now
6Density generally adopts a kind of pointer density meter of machinery, has the SF of working as
6Performance that can on-the-spot display density value when gas leakage takes place electric product.The width of its Baden's pipe of the table of prior art all 14 millimeters and below because the Baden is not in control 14 mm wides, its intensity is big not enough, when push pointer shows or dead weight will cause actual density value and pointer displayed value variant.In addition because Baden's pipe insufficient strength is big, in the occasion of low-pressure, owing to be subjected to the restriction of profile, usually needing housing diameter is 65 density monitor, because housing diameter is little, Baden's pipe will be undersized, add that force value is little, make the pressure that is added in Baden's pipe just little, Baden's pipe is just soft, the power that can be with is just little, its resistance to shock is just poor, and swing causes displayed value to change a little, can not guarantee system's reliably working, the user has only replacing table again, causes direct economic loss.
In sum, current all low-pressures, housing diameter are the SF below 75 millimeters
6The resistance to shock of gas density table is bad, mission life is not long.Be necessary to develop the good pointer SF of a kind of resistance to shock
6The gas density table is to guarantee the electric system reliably working.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, the pointer sulfur hexafluoride gas density table that provides a kind of resistance to shock well to have wide Baden pipe, and it can be used for control and monitor airtight container SF
6The density of gas is at SF
6The gas leakage situation that occurs in the electrical equipment in time gives to show accurately, for ensureing that electric power safety plays effect.
The purpose of this utility model is achieved in that a kind of pointer sulfur hexafluoride gas density table with wide Baden pipe, comprise housing and be arranged on housing interior pedestal, Baden's pipe, temperature compensating element, end seat, movement, pointer, described pedestal is fixed on the housing, one end of described Baden pipe is welded on the described pedestal and is communicated with it, the other end is connected with an end of temperature compensating element by described end seat, the internal diameter of described shell is smaller or equal to 75mm, and the width of described Baden pipe is 15.5～40mm.
The above-mentioned pointer sulfur hexafluoride gas density table with wide Baden pipe, wherein, the rated pressure of described density meter is lower than 0.1Mpa.
The above-mentioned pointer sulfur hexafluoride gas density table with wide Baden pipe, wherein, the temperature compensating element of described density meter is bimetallic material or the airtight Baden's pipe that is filled with gas.
The above-mentioned pointer sulfur hexafluoride gas density table with wide Baden pipe, wherein, the movement of described density meter has damping mechanism.
Technical scheme with wide Baden pipe pointer sulfur hexafluoride gas density table of the present utility model compared with prior art, has following tangible advantage and characteristics:
Because the width widen of Baden's pipe, its acting force become big, just can prevent that pointer from too swinging, can not be damaged assurance system reliably working.Also can play simultaneously the vibrations when resisting transportation, thereby can improve the resistance to shock and the reliability of this density meter greatly.
Description of drawings
Fig. 1 is the structural representation with pointer sulfur hexafluoride gas density table of wide Baden pipe of the present utility model;
Fig. 2 is that the A of Fig. 1 is to partial sectional view.
Embodiment
See also Fig. 1 and Fig. 2, pointer sulfur hexafluoride gas density table with wide Baden pipe of the present utility model comprises joint, housing 1, index dial 6, pointer 7, Baden's pipe 9, temperature compensating element 4, pedestal 5, end seat 3, movement 2, watch glass, cover circle 8, wherein
The rated pressure of density meter is lower than 0.1Mpa; The internal diameter of housing 1 is 65mm; Joint is fixed on the housing 1; Movement 2 is fixed on the pedestal 5; The width of Baden's pipe 9 is L=15.5～40mm, to improve resistance to shock; One end of Baden's pipe 9 is welded on the pedestal 5 and is communicated with it, and the other end welds together with end seat 3; And temperature compensating element 4 is made by bimetallic material or the airtight Baden's pipe that is filled with gas, and its end is connected on the end seat 3, the other end be connected with movement 2 (or with movement 2 be connected by connecting link); Watch glass, cover circle 8 are separately fixed on the housing 1, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater are invaded.4 pairs of density meters of temperature compensating element play temperature compensation and use;
Action principle with pointer sulfur hexafluoride gas density table of wide Baden pipe of the present utility model is:
Based on flexible member Baden pipe 9, utilize the pressure and temperature of 4 pairs of variations of temperature compensating element to revise, the variation of reflection sulfur hexafluoride gas density.Promptly under the pressure effect of measured medium sulfur hexafluoride gas, because the effect of temperature compensating element 4 has been arranged, the variation of its density value, force value also changes accordingly, force the 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.If leaked gas, its density value drops to a certain degree (reach report to the police or locking value), and Baden's pipe 9 produces accordingly to bottom offset, and by temperature compensating element 4, pointer shows and just diminish, and reaches to monitor and control SF in the equipment such as electric beginning
6Gas density makes the electrical equipment trouble free service.
Pointer sulfur hexafluoride gas density table with wide Baden pipe of the present utility model the most important thing is, in order to increase resistance to shock, with the width increase of Baden's pipe 9, makes Baden's pipe 9 can easily drive temperature compensating element 4, movement 2 and pointer 7.Because Baden's pipe is wide, its area is just big, according to formula: F (pressure)=P (pressure) X S (area), we can obtain: when same pressure P, increase area S, pressure F will increase so, pressure on Baden's pipe 9 is increased, thereby can easily drive temperature compensating element 4, movement 2 and pointer 7 are not afraid of the interference of external force yet, as vibration or impact, make when low-pressure (rated pressure is lower than 0.1Mpa), housing 1 internal diameter requires less than the occasion below 65 millimeters, have extraordinary performance, can reach: A) long service life can reach 30 years or longer; B) resistance to shock is better; C) anti-movement capacity is stronger.
In order further to improve resistance to shock, can also adopt the movement 2 that has damping mechanism, make the resistance to shock of density meter better.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (4)
1. pointer sulfur hexafluoride gas density table with wide Baden pipe, comprise housing and be arranged on housing interior pedestal, Baden's pipe, temperature compensating element, end seat, movement, pointer, described pedestal is fixed on the housing, one end of described Baden pipe is welded on the described pedestal and is communicated with it, the other end is connected with an end of temperature compensating element by described end seat, it is characterized in that the internal diameter of described shell is smaller or equal to 75mm, the width of described Baden pipe is 15.5～40mm.
2. the pointer sulfur hexafluoride gas density table with wide Baden pipe according to claim 1 is characterized in that the rated pressure of described density meter is lower than 0.1Mpa.
3. the pointer sulfur hexafluoride gas density table with wide Baden pipe according to claim 1 is characterized in that, the temperature compensating element of described density meter is bimetallic material or the airtight Baden's pipe that is filled with gas.
4. the pointer sulfur hexafluoride gas density table with wide Baden pipe according to claim 1 is characterized in that the movement of described density meter has damping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201206738U CN201662467U (en) | 2010-03-01 | 2010-03-01 | Pointer type sulfur hexafluoride gas density meter with wide Burdon tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201206738U CN201662467U (en) | 2010-03-01 | 2010-03-01 | Pointer type sulfur hexafluoride gas density meter with wide Burdon tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662467U true CN201662467U (en) | 2010-12-01 |
Family
ID=43232886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201206738U Expired - Fee Related CN201662467U (en) | 2010-03-01 | 2010-03-01 | Pointer type sulfur hexafluoride gas density meter with wide Burdon tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662467U (en) |
-
2010
- 2010-03-01 CN CN2010201206738U patent/CN201662467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161215 Address after: 201802 Shanghai City, Jiading District Nanxiang Town, Yun North Road 1755 Lane 21, B zone four Patentee after: Shanghai joy Electric Co., Ltd. Address before: 201802 Qingpu District, Zhujiajue, Zhu Feng Road, No. A, building, 1603 Patentee before: Shanghai Roye Electronic Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20190301 |