CN201478199U - Sulphur hexafluoride gas density relay - Google Patents
Sulphur hexafluoride gas density relay Download PDFInfo
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- CN201478199U CN201478199U CN2009202092178U CN200920209217U CN201478199U CN 201478199 U CN201478199 U CN 201478199U CN 2009202092178 U CN2009202092178 U CN 2009202092178U CN 200920209217 U CN200920209217 U CN 200920209217U CN 201478199 U CN201478199 U CN 201478199U
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- bourdon tube
- gas density
- density relay
- temperature compensating
- sulfur hexafluoride
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Abstract
The utility model relates to an SF6 gas density relay with low pressure, which structurally carries out separated design on a control part and a display part, wherein the control part comprises a Bourdon tube, a temperature compensating element and a connecting point operation arm, the display part also comprises a Bourdon tube and a temperature compensating element, both of the Bourdon tubes are welded on a base, the other end of the Bourdon tubes is connected with an end seat, the end seat is connected with one end of the temperature compensating elements, and the other end of the temperature compensating elements is connected with the connecting point operating arm or a mechanism core. Thereby, the display part and the control part can not influence each other during operation, in addition, the display precision and the display range of the display part and the control part can not be limited, and the electric performance and the service life of the relay can be greatly improved.
Description
Technical field
The utility model relates to a kind of relay, relates in particular to a kind of sulphur hexafluoride (SF that is applied in
6) SF on the electric equipment
6The SF of gas density relay, particularly a kind of low-pressure
6Gas density relay.
Background technology
SF
6Electric product has been widely used in power department, and 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 dielectric 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 monitor of machinery, has the SF of working as
6Can on-the-spot display density value when gas leakage takes place electric product, and also have and report to the police and blocking function, and these density monitors all are to measure SF basically
6The gas relative pressure.And seal with regard to the housing that needs density monitor for some occasion (as the table of low-pressure, or high altitude localities), its performance just is not subjected to height above sea level, climatic influences like this, can be applied in each place.Though this measurement SF is arranged in the market
6The hermetically sealed density monitor of gas absolute pressure, the transducer of its gaging pressure adopts bellows, though and contact adopts the sensitive switch form because the displacement of bellows is little, precision also is difficult to carry out; Most important this density monitor is not with demonstration, and signal output is only arranged, and can not satisfy actual needs, adds that manufacturing cost is also high owing to adopt bellows as pressure sensor.In sum, need a kind of SF of utility model
6Gas density relay: sealing is reliable, and the temperature-compensating performance is accurate, the precision height, and the contact contact is reliable, has Presentation Function, be not subjected to height above sea level or effects of air pressure, and resistance to shock is good, improves the quality of products greatly, lowers manufacturing cost and is very important.
The present in addition generally pointer SF of a kind of machinery that adopts
6Gas density relay (Fig. 1) is monitored SF
6Density is promptly worked as SF
6This relay can be reported to the police and locking when gas leakage took place electric product, can also show on-the-spot density value simultaneously.This density monitor generally adopts single Bourdon tube 3, single temperature compensating element 4 and hairspring type magnetic help formula electric contact 7, help formula suction though increased magnetic, the reliable closure of docking point is helpful, but the difference of density value when also causing actual act and pointer show value, in addition when density is higher than set point, its movable contact is to move along with pointer 2, because the power of hairspring is very little, make magnetic help formula suction can not transfer too greatly, in case when density value had arrived setting operating value (report to the police or locking), signalling contact (reporting to the police or locking) had moved, if pointer in its vicinity at this moment, can produce vibration, signal is disconnected again, send misoperation.In addition, when contact (reporting to the police or locking) was closed, its closing force only depends on the small power of the hairspring of contact, helps formula power even add magnetic, and was also still very little, therefore extremely was afraid of to shake.Most critical be that magnetic helps formula hairspring type electric contact because its closing force only depends on the small power of the hairspring of contact, help formula power even add magnetic, also still very little, so contact badly, be subjected to oxidation or pollution, often come in contact bad phenomenon, cause serious consequence.It is slow that magnetic helps the breaking speed of formula electric contact in addition, and its contact capacity is little, and the life-span is short.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, Bourdon tube 3 will be undersized, add that force value is little, make the pressure that is added in Bourdon tube 3 just little, Bourdon tube 3 is just soft, the power that can be with is just little, and it is little that this just needs magnetic to help formula electric contact applied force also to need, and whole magnetic helps the active force of formula electric contact 7 little, profile is little, just is difficult to guarantee electric property and life-span.In case go wrong, the user has only replacing again, causes economic loss, can not finely meet the demands.
And the present another kind of contact of developing adopts the no oil type SF of sensitive switch
6Gas density relay, this SF
6The structure of gas density relay such as Fig. 2, shown in Figure 3, it comprises SF6 gas connection 29, movement 9, housing 31, dial 34, pointer 19, Bourdon tube 1, temperature compensating element 32, junction block 28, sensitive switch 41,42,43, printed circuit board 36, location-plate 33, fixed head 8, electric wire 37, regulating part 111,112,113, connecting rod 7, contact motion arm 12, watch crystal 35, cover circle 27, pedestal 3 and SF
6Air shooter 30.Wherein, SF
6Gas connection 29, junction block 28, watch crystal 35, cover circle 27 and pedestal 3 are separately fixed on the housing 31.Movement 9 and fixed head 8 are installed in respectively on the pedestal 3, and pointer 19 and dial 34 are separately fixed on the movement 9.One end of Bourdon tube 1 is welded on the pedestal 3 and is communicated with it, the other end is connected with an end of temperature compensating element 32 by end seat 6, the other end of temperature compensating element 32 is connected with contact motion arm 12,13, one end of contact motion arm 12,13 is connected with an end of connecting rod 7, and the other end of connecting rod 7 is connected with movement 9.Be fixed with regulating part 111,112,113 on the contact motion arm 12.Sensitive switch 41,42,43 is welded on respectively on the printed circuit board 36, and printed circuit board 36 is installed on the fixed head 8, and fixed head 8 is installed in again on the pedestal 3.Sensitive switch 41 is fixed on the below of regulating part 111, and sensitive switch 42 is fixed on the below of regulating part 112, and sensitive switch 43 is fixed on the below of regulating part 113.Be respectively equipped with motion arm 411,421,431 on each sensitive switch.Location-plate 33 is fixed on the movement 9, and its front end extends to the below of the end seat 6 of the end that Bourdon tube 1 links to each other with temperature compensating element 32, and its function is: work as SF
6When gas density dropped to certain value, spacing Bourdon tube 1 moved down, the protection sensitive switch, and then protection contact operating axis 12 do not damaged by pressure and is out of shape, and makes whole system keep reliably working.
The contact of sensitive switch by electric wire 37, is connected on the junction block 28 from printed circuit board 36, and junction block 28 is fixed on the housing 31.Watch crystal 35, cover circle 27 are separately fixed on the housing 31, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater are invaded.SF
6One end of air shooter 30 is connected with pedestal 3, and positiver sealing, SF
6The other end of air shooter 30 is connected with joint 29, and positiver sealing.
Above-mentioned SF
6Though the sensitive switch that gas density relay adopted has certain advantage,,, also there is following problem under the low-pressure situation, under the situation of diameter of the housing requirement below 65 millimeters owing to have only the Bourdon tube of employing:
1, because this SF
6The structure of gas density relay is being measured SF
6During the gas low-pressure, add that housing diameter is below 65 millimeters the time,, be difficult to drive sensitive switch work because Bourdon tube is soft, thus can not be fine assurance system reliably working.
2, because this SF
6Gas density relay is under the soft situation of Bourdon tube, and show value can not be well synchronous, is difficult to guarantee system's reliably working.
In sum, current all low-pressures, housing diameter are the SF below 65 millimeters
6The electric property of gas density relay is all good inadequately or the contact contact is stable inadequately, resistance to shock is bad, working life is not long or range of application is subjected to the influence of height above sea level big.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, provide that a kind of signal generator electric property is fine, the contact contact is fine, long working life, sulfur hexafluoride gas density relay that range of application is big, be used for control and monitor airtight container SF
6The density of gas or its mist, and at SF
6The gas leakage situation that occurs in the electric equipment is in time sent alarm signal and block signal, for ensureing that electric power safety plays effect.
The utility model is achieved in that
A kind of sulfur hexafluoride gas density relay comprises SF
6The housing of gas density relay, be arranged on the pedestal in this housing, end seat and as the control Bourdon tube of signal controlling part, temperature compensating element, the signal generator of some density monitors, with the corresponding regulating part of signal generator, it also comprises with signal control part divides relative independently display part, described display part is fixed in the watchcase, and comprise the demonstration Bourdon tube, temperature compensating element, movement, pointer, one end of Bourdon tube is welded on the pedestal, the other end is welded on the end seat, the end seat is connected with an end of temperature compensating element, the other end of temperature compensating element is connected with movement or by connecting rod, and pointer is installed on the movement; Described signal generator is a sensitive switch.
Described sulfur hexafluoride gas density relay, the temperature compensating element of described signal controlling part are bimetallic material or the airtight Bourdon tube that has been filled with the gas that temperature-compensating uses.
Described sulfur hexafluoride gas density relay, the temperature compensating element of described display part are bimetallic material or the airtight Bourdon tube that has been filled with the gas that temperature-compensating uses.
Described sulfur hexafluoride gas density relay, described control Bourdon tube and demonstration Bourdon tube are setting that be arranged side by side or orthogonal.
Described sulfur hexafluoride gas density relay, control Bourdon tube and demonstration Bourdon tube are welded on the integrated pedestal respectively or divide on the susceptor body.
Described sulfur hexafluoride gas density relay, the width of described control Bourdon tube are 16～40mm.
Described sulfur hexafluoride gas density relay, described movement has damping mechanism.
Described sulfur hexafluoride gas density relay, described housing seals.
Described sulfur hexafluoride gas density relay, signal generator is connected with lead, and this lead seals with housing at the housing place of drawing.
Described sulfur hexafluoride gas density relay, it comprises that also one is used for reinforcing mechanisms that sensitive switch is strengthened, the i.e. reinforcing mechanisms that the sensitive switch shell is strengthened, reinforcing mechanisms is fixed in the housing, comprises at least one reinforcement that is fixed on selected sensitive switch shell side.
The utility model sulfur hexafluoride gas density relay makes it compared with prior art owing to adopted above technical scheme, has following tangible advantage and characteristics:
In technique scheme of the present utility model, independent design is structurally carried out in control section and display part in this density monitor, comprise control Bourdon tube, temperature compensating element, signal generator (employing sensitive switch) at control section, the display part has also comprised demonstration Bourdon tube, temperature compensating element.Two Bourdon tubes all are welded on the pedestal, and two temperature compensating elements are connected with corresponding Bourdon tube respectively.Therefore it is unaffected mutually to make that display part and control section work together, the sensitive switch of control section, contact motion arm can be limited in certain scope because of the Bourdon tube that it is corresponding that needs protection, display precision and indication range can not be restricted simultaneously, the sensitive switch of control section is selected not to be restricted in addition, can further improve the resistance to shock of relay; In addition, the vibration of the pointer of display part and the sensitive switch of control section are irrelevant, and be more convenient to the unnecessary difference of taking into account display part and control section of the selection of temperature-compensating sheet, makes compensation performance more accurate.The signal contact of very important control section can be selected sensitive switch in addition, can further improve resistance to shock, electric property and the life-span of relay; In addition, most important because the two Bourdon tubes of employing are wherein controlled only control-signals generator (being sensitive switch) of Bourdon tube, so just can make the sensitive switch reliably working, just can make signal generator select sensitive switch, the electric property and the useful life of having improved this relay so greatly.Adopt sensitive switch to export, contact loose contact phenomenon can not take place, guarantee system's reliably working as contact point signal; So just improved this SF greatly
6The contact performance of gas density relay and precision property and range of application are the remarkable SF of a kind of genuine performance
6Gas density relay can be applied in SF well
6On the electric equipment.
Explanation in addition, a kind of SF described in the utility model
6Gas density relay comprises SF
6Gas density relay and SF
6The mist density monitor.
Description of drawings
Fig. 1 is prior art pointer-type SF
6A kind of structural representation of gas density relay;
Fig. 2 is prior art pointer-type SF
6The another kind of structural representation of gas density relay;
Fig. 3 is the partial side view of structure shown in Figure 2;
Fig. 4 is SF of the present utility model
6The internal structure schematic diagram of gas density relay;
Fig. 5 is SF of the present utility model
6The perspective view of the internal structure of gas density relay;
Fig. 6 SF of the present utility model
6The structural representation of gas density relay;
Fig. 7 SF of the present utility model
6The control Bourdon tube of gas density relay is vertical setting with the demonstration Bourdon tube;
Fig. 8 is SF of the present utility model
6The another kind of structural representation of gas density relay.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and in conjunction with the accompanying drawings the utility model is described in detail:
Present embodiment is an example with the relay that has two sensitive switches, and its regulating part is fixed on the contact motion arm, and the contact motion arm is fixed on again on the end seat, regulating part control sensitive switch, output signal.
See also Fig. 4 and Fig. 5 and in conjunction with Fig. 6, SF of the present utility model
6Gas density relay mainly by joint, pedestal 1, movement 2, temperature compensating element 3, temperature compensating element 4, control Bourdon tube 5, show Bourdon tube 6, sensitive switch 7 (2), two regulating parts 9 and 11, contact motion arm 10, housing 14, pointer 15, watch crystal 16, sealing ring 17, dial 18, cable 19, cover circle 20, packing ring 21, end seat, wherein, in order to improve resistance to shock, we can widen the width of Bourdon tube, as being designed to 20～40mm to the width of control Bourdon tube 5;
Joint is fixed on the housing 14; Wherein an end of the control Bourdon tube 5 of signal controlling part is welded on the pedestal 1 and is communicated with it, and the other end is welded on the end seat; The end seat is connected with an end of temperature compensating element 4 (present case employing bimetallic material), the other end of temperature compensating element 4 is connected with contact motion arm 10, be fixed with regulating part 9 and 11 on the contact motion arm 10, sensitive switch 7 with each regulating part corresponding pairs setting, sensitive switch 7 is fixed in the housing, and present case is fixed on the pedestal 1.Two sensitive switch 7 correspondences are arranged on a side of each regulating part 9,11, and its warning or locking contact point signal are by cable 19 outputs, and cable 19 is drawn the place at housing, seals with housing; And pedestal 1 is fixed on the housing 14.And wherein an end of the demonstration Bourdon tube 6 of display part is welded on the pedestal 1 and is communicated with it, and the other end is welded on the end seat; The end seat is connected with an end of temperature compensating element 3 (present case also adopts bimetallic material), and the other end of temperature compensating element 3 is connected with movement 2, and movement 2 is fixed on the pedestal 1; Dial plate is fixed on above the movement 2, and pointer 15 is fixed on the movement 2.Cover circle 20, watch crystal 16, two sealing rings 17, packing rings 21 are separately fixed on the housing 14, guarantee that whole housing seal, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater intrusion simultaneously.
The utility model utilizes temperature compensating element 3, temperature compensating element 4, and the pressure and temperature that changes is revised, and can react SF
6The variation of gas density.
Demonstration Bourdon tube 6 in the display part is flexible members, utilizes the pressure and temperature of 3 pairs of variations of temperature compensating element to revise, reaction SF
6The variation of gas density.Promptly at measured medium SF
6Under the pressure effect of gas, because the effect of temperature compensating element 3 has been arranged, the variation of its density value, force value also changes accordingly, force the not end that shows Bourdon tube 6 to produce corresponding strain and be subjected to displacement,, pass to movement 2 by means of temperature compensating element 3, movement 2 passes to pointer 15 again, pursues tested SF
6The gas density value indicates on scale.Density monitor just can show the SF6 density value like this.
Equally, the control Bourdon tube 5 in the control section also is a flexible member, utilizes the pressure and temperature of 4 pairs of variations of temperature compensating element to revise, reaction SF
6The variation of gas density.Promptly at measured medium SF
6Under the pressure effect of 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 not end of control Bourdon tube 5 to produce corresponding strain and be subjected to displacement, if leaked gas, its density value drops to a certain degree (reach and report to the police or the locking value), control Bourdon tube 5 produces accordingly to bottom offset, by temperature compensating element 4, make contact motion arm 10 to bottom offset, two regulating parts 9 on the contact motion arm 10 and 11 just promote pairing two sensitive switch 7 contacts and connect, send corresponding signal (report to the police or locking), reach and monitor and control SF in the equipment such as electric beginning
6Gas density makes the electric equipment trouble free service.If its density value has raise, force value also raises accordingly, be elevated to a certain degree, control Bourdon tube 5 also produces accordingly to top offset, by temperature compensating element 4, make contact motion arm 10 to top offset, two regulating parts 9 on the contact motion arm 10 and 11 are just to top offset, and regulating part 9 and 11 just can not run into sensitive switch 7, and its contact just disconnects, signal (reporting to the police or locking) is just removed, and so just finishes the function of density monitor.
Because the signal generator of this density monitor adopts sensitive switch 7 forms, also the control of sensitive switch 7 contacts all control by contact motion arm 10, so the contact good electric property, the life-span is long.
In addition, when density value descended, control Bourdon tube 5 just moved down, and until the action of signal (reporting to the police or locking) contact, promptly sensitive switch 7 contacts are connected.Density value descends more, and it is firm more that sensitive switch is just connected.
In density monitor of the present utility model, control section and display part are relatively independent, it has the following advantages: can accomplish that 1) actual act value and pointer show value are just the same, and traditional pointer density monitor, owing to exist switch resistance and magnetic to help formula power, always there are certain deviation in its actual operating value and pointer show value, make troubles to the user.2) the show value scope can accomplish-0.1Mpa begins, and is convenient.3) because display part and control section branch come, the resistance when sensitive switch moves in the control section just can not influence show value, so just can select the big sensitive switch of action force, and then improve the resistance to shock of density monitor greatly.4) same owing to showing and control to divide and come that the vibration of pointer does not influence the sensitive switch of control section, this improves the resistance to shock of density monitor again greatly.5) can select compensating element, according to the density of show value and the density of contact operating value, can improve the compensation precision of density monitor like this.6) because the display part is what to separate with control part, we just can control two Bourdon tubes in place, and then improve the resistance to shock and the reliability of density monitor greatly.7) of paramount importance is owing to adopting the control Bourdon tube and showing the Bourdon tube independent design, just can realize signal generator selection sensitive switch, the electric property and the useful life of having improved this relay so greatly.The product that just can design the performance brilliance comes.
In another embodiment, as shown in Figure 8, the temperature compensating element of the signal controlling of density monitor part adopts the airtight Bourdon tube 4 that has been filled with the gas that temperature-compensating uses.The action principle of present case is based on flexible member temperature compensating element (compensation Bourdon tube) 4, utilizes the calibrating gas that is filled with compensation usefulness in the temperature compensating element 4 (compensation Bourdon tube) that the pressure and temperature that changes is revised, reaction SF
6The variation of gas density.Promptly under same ambient temperature, SF
6Temperature in the electric equipment raises or reduces, then (the SF of the normal pressure in the temperature compensating element 4
6) gas raises too or reduce, and just overcome Temperature Influence.Promptly at measured medium SF
6Under the pressure effect of gas, the variation of its density value, force value also changes accordingly, force the end of control Bourdon tube 5 to produce corresponding strain-displacement, if electric equipment has leaked gas, the gas density value of control Bourdon tube 5 descends, and control Bourdon tube 5 produces accordingly to bottom offset, make the also corresponding displacement of end seat, its density value drops to the SF that is lower than the cavity internal standard
6To a certain degree (reach report to the police or locking value) of gas density value, regulating part on the contact motion arm just promotes corresponding sensitive switch 7, corresponding sensitive switch 7 contacts are just connected, and send corresponding signal (reporting to the police or locking), reach the SF in the equipment such as supervision and control electric switch
6Gas density makes the electric equipment trouble free service.If its density value has raise, force value also raises accordingly, be elevated to a certain degree, control Bourdon tube 5 also produces accordingly to top offset, makes the corresponding displacement of end seat, and the regulating part on the end seat is with regard to corresponding displacement, its density value is elevated to a certain degree (reaching and report to the police or the locking value) of the SF6 gas density value that is higher than the cavity internal standard, just away from corresponding sensitive switch 7, its contact just disconnects, and signal (reporting to the police or locking) is just removed.Because under same ambient temperature, if SF
6Gas density value height, then its force value is also big; If SF
6The gas density value is low, and then its force value is also little.So just overcome the influence that temperature on density is measured.Work as SF
6The SF of electric equipment
6The gas density value is higher than the SF of cavity internal standard
6The gas density value to a certain degree the time, SF then
6The SF of electric equipment
6Gas pressure value is just than the SF of cavity internal standard
6Gas pressure value is big, and its contact just disconnects during promptly greater than set point, and signal (reporting to the police or locking) is just removed; And work as SF
6The SF of electric equipment
6The gas density value is lower than the SF of cavity internal standard
6The gas density value to a certain degree the time, SF then
6The SF of electric equipment
6Gas pressure value is just than the SF of cavity internal standard
6Gas pressure value is little, and its contact is just connected during promptly less than set point, just sends corresponding signal (reporting to the police or locking).And demonstration Bourdon tube 3 is still adopted in the display part, and compensating element, adopts bimetallic material 17 to realize temperature-compensating.
It is same because signal generator of the present utility model adopts the sensitive switch form, and the control of sensitive switch contact is all controlled by regulating part, and the control of regulating part is carried out by contact motion arm and control Bourdon tube, density value has descended, the control Bourdon tube moves with regard to corresponding, until the action of signal (reporting to the police or locking) contact, promptly the sensitive switch contact is connected.Density value descends more, and it is firm more that sensitive switch is just connected, and Bourdon tube is used on the sensitive switch with bigger masterpiece, and sensitive switch is under the good pressure and in the good connection, is not afraid of vibration.Because the displacement of Bourdon tube is bigger than bellows, just easily precision is done standard simultaneously, processing easily, debugging can reduce cost easily.Because contact adopts the sensitive switch form, increase contact rating simultaneously, improve contact reliability.
The temperature compensating element 4 of density monitor (adopt Bourdon tube, case does not have figure) is communicated with by the tube connector bulb gas circuit outer with being located at housing.During use, bulb and tested source of the gas are in the same environment.So just make density monitor can accurately reflect SF measured or monitoring
6The temperature of the gas of equipment, the SF that can actual response monitors
6The density of equipment.Improved this SF greatly
6The range of application of gas density relay is the remarkable SF of a kind of genuine performance
6Gas density relay can be applied in SF well
6On the electric equipment.
In sum, the utility model is owing to adopted Bourdon tube as pressure sensor, adopted the principle of control and demonstration independent design, so just can require less than the occasion below 65 millimeters at low-pressure, housing diameter, its signal generator can adopt sensitive switch.Through handling like this, we just can realize, particularly at low-pressure (rated pressure is below the 0.1Mpa) and the housing diameter requirement less than the density monitor below 66 millimeters, just have extraordinary performance, reach: A) electric property is very good; B) long service life can reach 30 years or longer; C) the temperature-compensating performance is more accurate; D) precision is higher; E) contact is more reliable; F) resistance to shock is better; G) sealing is more reliable; H) manufacturing cost is lower.So just improved the performance and the cost performance, particularly low-pressure (rated pressure is that 0.1Mpa is following) of this density monitor greatly and housing diameter requires less than the density monitor below 66 millimeters.
Those of ordinary skill in the art will be appreciated that, above embodiment only be used for illustrating of the present 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.As sensitive switch also can be fixed on adjusting rod above or below.
Claims (10)
1. sulfur hexafluoride gas density relay, the housing that comprises the SF6 gas density relay, be arranged on the pedestal in this housing, end seat and as the control Bourdon tube of signal controlling part, temperature compensating element, the signal generator of some density monitors, with the corresponding regulating part of signal generator, it is characterized in that: it also comprises with signal control part divides relative independently display part, described display part is fixed in the watchcase, and comprise the demonstration Bourdon tube, temperature compensating element, movement, pointer, one end of Bourdon tube is welded on the pedestal, the other end is welded on the end seat, the end seat is connected with an end of temperature compensating element, the other end of temperature compensating element is connected with movement or by connecting rod, and pointer is installed on the movement; Described signal generator is a sensitive switch.
2. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: the temperature compensating element of described signal controlling part is bimetallic material or the airtight Bourdon tube that has been filled with the gas that temperature-compensating uses.
3. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: the temperature compensating element of described display part is bimetallic material or the airtight Bourdon tube that has been filled with the gas that temperature-compensating uses.
4. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: described control Bourdon tube and demonstration Bourdon tube are setting that be arranged side by side or orthogonal.
5. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: control Bourdon tube and demonstration Bourdon tube are welded on the integrated pedestal respectively or divide on the susceptor body.
6. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: the width of described control Bourdon tube is 16～40mm.
7. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: described movement has damping mechanism.
8. sulfur hexafluoride gas density relay as claimed in claim 1 is characterized in that: described housing seals.
9. sulfur hexafluoride gas density relay as claimed in claim 1, it is characterized in that: signal generator is connected with lead, and this lead seals with housing at the housing place of drawing.
10. sulfur hexafluoride gas density relay as claimed in claim 1, it is characterized in that: it comprises that also one is used for reinforcing mechanisms that sensitive switch is strengthened, the i.e. reinforcing mechanisms that the sensitive switch shell is strengthened, reinforcing mechanisms is fixed in the housing, comprises at least one reinforcement that is fixed on selected sensitive switch shell side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202092178U CN201478199U (en) | 2009-09-04 | 2009-09-04 | Sulphur hexafluoride gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202092178U CN201478199U (en) | 2009-09-04 | 2009-09-04 | Sulphur hexafluoride gas density relay |
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| Publication Number | Publication Date |
|---|---|
| CN201478199U true CN201478199U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202092178U Expired - Fee Related CN201478199U (en) | 2009-09-04 | 2009-09-04 | Sulphur hexafluoride gas density relay |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013357A (en) * | 2009-09-04 | 2011-04-13 | 上海乐研电气科技有限公司 | Sulfur hexafluoride gas density relay |
| US11885827B2 (en) | 2020-03-11 | 2024-01-30 | Shanghai Roye Electric Co., Ltd. | High anti-vibration gas density monitor |
-
2009
- 2009-09-04 CN CN2009202092178U patent/CN201478199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013357A (en) * | 2009-09-04 | 2011-04-13 | 上海乐研电气科技有限公司 | Sulfur hexafluoride gas density relay |
| US11885827B2 (en) | 2020-03-11 | 2024-01-30 | Shanghai Roye Electric Co., Ltd. | High anti-vibration gas density monitor |
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