CN209929222U - Remote transmission type sulfur hexafluoride gas density controller - Google Patents
Remote transmission type sulfur hexafluoride gas density controller Download PDFInfo
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- CN209929222U CN209929222U CN201920522603.6U CN201920522603U CN209929222U CN 209929222 U CN209929222 U CN 209929222U CN 201920522603 U CN201920522603 U CN 201920522603U CN 209929222 U CN209929222 U CN 209929222U
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- sulfur hexafluoride
- gas density
- hexafluoride gas
- density controller
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 77
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 77
- 230000005540 biological transmission Effects 0.000 title claims description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001739 density measurement Methods 0.000 claims 2
- 230000003321 amplification Effects 0.000 abstract description 20
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 20
- 238000012544 monitoring process Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a teletransmission formula sulfur hexafluoride gas density controller, including protective housing, base, end seat, bourdon tube, U-shaped metalwork and a plurality of electronic component as gas density controller signal generator. The one end of barton pipe is connected on the base, and the other end passes through the one end of end seat and U-shaped metalwork links to each other, micro switch installs on the base and has trigger button, gas density controller still including a head with the other end of U-shaped metalwork is connected, and the drive of amplification end micro switch's trigger button is so that the displacement amplification mechanism of contact switch-on or disconnection on the micro switch, and when gas density value changes, barton pipe and U-shaped metalwork produce the displacement, and this displacement passes through the displacement amplification mechanism and enlargies the back and transmit micro switch, has improved density controller's precision to make micro switch send corresponding signal, accomplish density controller's function.
Description
Technical Field
The utility model relates to a gas density controller especially relates to an use teletransmission formula sulfur hexafluoride gas density controller who has teletransmission function on sulfur hexafluoride electrical equipment.
Background
Sulfur hexafluoride electrical products are widely applied to the electric power sector and industrial and mining enterprises, and rapid development of the electric power industry is promoted. Ensuring the reliable and safe operation of sulfur hexafluoride electrical products has become one of the important tasks of the power sector. The arc extinguishing medium and the insulating medium of the sulfur hexafluoride electrical product are sulfur hexafluoride gas, so that gas leakage cannot occur, and if gas leakage occurs, reliable and safe operation of the sulfur hexafluoride electrical product cannot be guaranteed. Therefore, it is necessary to monitor the density value of sulfur hexafluoride in sulfur hexafluoride electrical products. At present, a mechanical pointer type sulfur hexafluoride gas density controller (shown in figure 1) is generally adopted for monitoring the sulfur hexafluoride gas density, namely, the controller can give an alarm and lock when the sulfur hexafluoride electrical product leaks gas, and can display the field density value. The density controller generally adopts a dial, a pointer, a single bourdon tube, a single U-shaped metal piece, a base, a movement and a hairspring type magnetic auxiliary electric contact. When the contact is closed, the closing force is small only by the small force of the contact spring even if a magnetic force is applied, so that the contact is extremely weak to vibration and the contact closing is not firm enough. And above all, when it is oxidized or contaminated, the phenomenon of poor contact of the electric contacts 7 often occurs, with serious consequences. In addition, the magnetic-assisted electric contact is low in breaking speed and small in contact capacity, so that the service life is short. Therefore, the density controller is difficult to ensure the electrical performance and the service life, and once a problem occurs, a user only needs to replace the density controller again, so that economic loss is caused, and the requirements cannot be well met. Most importantly, the sulfur hexafluoride gas density controller used for monitoring the sulfur hexafluoride gas density has the following problems: 1) when the sulfur hexafluoride electrical product leaks, only when the gas pressure of the sulfur hexafluoride electrical product is reduced to an alarm value, an alarm signal is sent out, and at the moment, much sulfur hexafluoride gas is leaked. For example, a density controller with alarm pressure of 0.52Mpa and lock pressure of 0.50Mpa is commonly used in sulfur hexafluoride electrical equipment with rated pressure of 0.6 Mpa. At present, many substations are unattended substations, so for the sulfur hexafluoride electrical equipment, if gas leaks, when the gas is reduced from the rated pressure of 0.6Mpa to the alarm pressure of 0.52Mpa, an attendant can find the gas leakage, and then inform a maintainer to deal with the leakage accident on site, and at the moment, much sulfur hexafluoride gas is leaked. Therefore, in an unattended transformer substation, the density of sulfur hexafluoride electrical equipment needs to be monitored on line, and gas leakage of the sulfur hexafluoride electrical equipment needs to be found in time. 2) The density controller contacts typically employ hairspring type magnetic assisted electrical contacts. When the contact is closed, the closing force is small, and the contact closing is not firm enough. And most importantly, when the cable is oxidized or polluted, the phenomenon of poor contact of the electric contact is often generated, so that the cable is out of work, and serious consequences are generated. Therefore, improvement and innovation are needed to create a remote sulfur hexafluoride gas density controller with high precision, good contact electrical performance and stable contact of the contact.
In order to ensure the reliable operation of sulfur hexafluoride electrical equipment, improve the continuous reliable operation capability of an electric power system and realize online state detection, monitoring and fault prediction on the performance of the sulfur hexafluoride electrical equipment, the method becomes an important research direction in the application of the sulfur hexafluoride electrical equipment. With the requirements of the unattended transformer substation on remote control and remote measurement, the online monitoring of the density value of sulfur hexafluoride gas in sulfur hexafluoride electrical equipment has very important practical significance. In addition, along with the development of the unattended transformer substation towards networking and digitization and the continuous enhancement of the requirements on remote control and remote measurement, the method has important practical significance on the online monitoring of the sulfur hexafluoride gas density of the sulfur hexafluoride electrical equipment.
In summary, the current sulfur hexafluoride gas density controller has poor electrical performance, or the contact of the contact is not stable enough, and the remote transmission function of the density value cannot be realized, and the online monitoring of the sulfur hexafluoride gas density of the sulfur hexafluoride electrical equipment is difficult to realize, so that the sulfur hexafluoride gas density controller which has high precision, good electrical performance, reliable contact of the contact and the realization of the density remote transmission function is needed to be created.
Disclosure of Invention
In order to solve the above-mentioned problem that prior art exists, the utility model aims to provide a precision is high, signal generator's electrical property is good, the contact contacts well, realize simultaneously that the sulfur hexafluoride gas density controller that has the density teletransmission function for control and the gaseous density of sulfur hexafluoride among the keep watch on the sealed container, and to the gas leakage condition that appears in the sulfur hexafluoride electrical equipment, in time send alarm signal and blocking signal, realize the on-line monitoring to sulfur hexafluoride gas density of sulfur hexafluoride electrical equipment simultaneously, play a role for guarantee electric power safety.
One technical scheme for achieving the purpose is as follows: a remote transmission type sulfur hexafluoride gas density controller comprises a base, an end seat, a Barton tube, a connecting device, a displacement amplifying mechanism and a low-pressure warning device, wherein one end of the Barton tube is connected to the base, the other end of the Barton tube is provided with the end seat, the displacement amplifying mechanism is connected with the low-pressure warning device, the displacement amplifying mechanism is connected with the end seat through the connecting device, and when the Barton tube deforms due to under-pressure, deformation is transmitted to the displacement amplifying mechanism through the end seat, and the displacement amplifying mechanism drives the low-pressure warning device to act to warn after amplification operation is carried out on the Barton tube;
the displacement amplifying mechanism comprises two clamping plates, a fan-shaped curved surface gear, a central gear, a connecting rod, a connecting arm and a U-shaped metal piece, wherein the two clamping plates are arranged in parallel, the fan-shaped curved surface gear is arranged in a space between the two clamping plates and is connected with the two clamping plates through a fan-shaped curved surface gear rotating shaft, a rotating shaft is also arranged on the clamping plates and is arranged at the lower part of the left side of the clamping plates, the rotating shaft vertically penetrates through the two clamping plates, the central gear is arranged at the position of the rotating shaft in the inner space of the two clamping plates and is mutually meshed with the rotating shaft of the fan-shaped curved surface gear, a transmission arm is arranged on the fan-shaped curved surface gear, the transmission arm radially extends towards the outer side of the fan-shaped curved surface gear, a sliding groove is arranged on the side surface of the upper, the other end of the connecting rod is connected with one end of a connecting arm, the other end of the connecting arm is fixedly arranged at one end of a U-shaped metal piece, and the other end of the U-shaped metal piece is fixedly arranged with an end seat;
the low-voltage warning device comprises a microswitch, the microswitch is electrically connected with the warning device, the microswitch is arranged in a space above the rear side of the base, at least 2 groups of microswitches are arranged, a trigger button is arranged at the bottom of the microswitch, a central shaft is arranged at the rear end of the rotating shaft, the central shaft and the rotating shaft are coaxially arranged, a plurality of eccentric wheels are arranged on the side wall of the central shaft, the eccentric wheels are arranged below the microswitch, and when the eccentric wheels rotate to coincide with the microswitch, the eccentric wheels push the trigger button to enable the microswitch to be switched on.
The front end of the base is provided with a dial, the front side of the dial is provided with a pointer, and the pointer is fixedly connected with the front end of the rotating shaft.
The base outside set up the protective housing, the leading flank of protective housing sets up the round hole, the round hole side sets up the groove, sets up calibrated scale glass on the round hole, sets up the safety cover in calibrated scale glass's front side, fixes calibrated scale glass through safety cover and protective housing, sets up the sealing washer on safety cover and protective housing contact surface.
The lower extreme of buckton pipe is connected the pipe, and pipe one end stretches into in the base, stretches out the protective housing on the other end, sets up the joint at the tip that the pipe stretches out the one end of protective housing.
The gas density controller collects pressure and temperature signals through the pressure transmitter and the temperature transmitter, the pressure and temperature signals are processed and converted into density values through embedded computer software, and the density values of the sulfur hexafluoride gas are converted into current signals through the A/D converter, the voltage and current converter and the current galvanostat so as to realize remote transmission and further realize online monitoring of the density of the sulfur hexafluoride gas electrical equipment.
Temperature transmitter contacts with the left surface or the right flank of base, the trailing flank of pressure transmitter base contacts, and integrated circuit is located the inside or the rear side of protective housing.
The protective housing is filled with shockproof oil, a shock-absorbing pad is arranged on the protective housing, and a heat-insulating layer wraps the outer surface of the protective housing.
And a wire holder is arranged on the lower side of the protective shell, and the contact of the micro switch is connected with the wire holder through a wire.
The utility model discloses a sulfur hexafluoride gas density controller makes it compare with prior art owing to adopted above technical scheme, has following obvious advantage and characteristics:
due to the adoption of the displacement amplifying mechanism, the displacement is amplified, and the precision of the density controller is greatly improved. Meanwhile, a pressure transmitter and a temperature transmitter are adopted, pressure and temperature signals are collected through the pressure transmitter and the temperature transmitter, are converted into density values through processing of an embedded computer, and the density values of sulfur hexafluoride gas can be converted into current signals through processing of an A/D converter, a voltage current converter and a current galvanostat, so that remote transmission is realized, and the density of sulfur hexafluoride gas electrical equipment can be monitored on line. And the displacement of the bourdon tube and the U-shaped metal piece is amplified by the displacement amplifying mechanism and then goes to control the signal generator (a plurality of micro switches) to achieve the purpose of improving the precision. The displacement amplification mechanism controls the micro switch according to the gas density value, so that the micro switch sends a corresponding signal to complete the function of the density controller, the problem of low precision in the prior art is solved, the advantages of high precision, good electrical performance, good contact, long service life and the like of the density controller are ensured, the reliable work of a system is ensured, and the sulfur hexafluoride gas density controller is worthy of the name, has excellent performance, high precision and good performance, and can be well applied to sulfur hexafluoride electrical equipment.
Drawings
Fig. 1 is a schematic diagram of a structure in the prior art.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a schematic view of the displacement amplification mechanism of the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by way of specific embodiments with reference to the accompanying drawings:
referring to fig. 2-3, the utility model relates to a teletransmission formula sulfur hexafluoride gas density controller, including bourdon tube 3, U-shaped metalwork 4, base 5, connecting rod 6, displacement mechanism 7 of amplification, protective housing 19, joint 23, micro switch 101, eccentric wheel 111, linking arm 9, end socket 8, connection terminal 24, table glass 22, housing 21, temperature transmitter 20, pressure transmitter 18, amplifier circuit 17, embedded computer 16, power module 15, A/D converter 14, voltage current converter 13, current galvanostat 12, printed board 11, electric wire 10 and switch reinforcing mechanism, this embodiment regards three micro switch 101 as gas density controller signal generator, this gas density controller still has calibrated scale 1 and pointer 2 that are used for showing the indicating value. Wherein, temperature transmitter 20 is fixed in the right flank of base 5 in a sealed manner to temperature transmitter 20 and sulfur hexafluoride gas contact each other, can the gaseous temperature value of accurate measurement sulfur hexafluoride. A pressure transducer 18 is sealingly fixed behind the base 5, while the amplifier circuit 17, the embedded computer 16, the power supply module 15, the a/D converter 14, the voltage-to-current converter 13, the current galvanostat 12 are fixed on the printed board 11, while the printed board 11 is located behind the base 5 and behind the protective housing.
The working principle or steps of the remote sulfur hexafluoride gas density controller are as follows: the pressure and temperature are measured by the pressure transmitter 18 and the temperature transmitter 20, the signals of the measured pressure and temperature are amplified by the amplifying circuit 17, the amplified signals of the pressure and temperature are collected by the embedded computer 16, and the density P of the sulfur hexafluoride gas is obtained by calculation in the embedded computer 1620Density P of the sulfur hexafluoride gas20Converted into a voltage signal by the A/D converter 1420UThen the voltage signal P is converted by the voltage-current converter 1320UP converted into current signal20IThen the sulfur hexafluoride gas density P of the current signal is enabled through the action of the current galvanostat 1220IThe device can be used for remote transmission, and further can realize on-line monitoring of the density of sulfur hexafluoride gas electrical equipment.
One end of the Bardon tube 3 of the density controller is welded on the base 5, the other end of the Bardon tube is welded on the end seat 8, the end seat 8 is fixed with one end of the U-shaped metal piece 4, and the other end of the U-shaped metal piece 4 is fixed with the connecting arm 9; the connecting arm 9 is fixed with one end of the connecting rod 6, and the other end of the connecting rod 6 is connected with the starting end of the displacement amplifying mechanism 7; the displacement amplifying mechanism 7 is a fan-shaped curved surface transmission mechanism. The microswitch 101 is fixed on the base 5, and the bottom of the microswitch 101 is provided with a trigger button 1011. The eccentric wheels 111 are arranged in pairs corresponding to the microswitch 101 and are each mounted on a central shaft 72, the central shaft 72 being an extension of the shaft 70 and being integral with the shaft 70. The dial 1 is fixed on the base 5, and the pointer 2 is fixed on the front end of the spindle 70. The eccentric wheel 111 drives a trigger button 1011 according to the gas density value and the pressure value, so that the contact on the micro switch 101 is switched on or off; the contact of the micro switch is connected to a wire holder 24 through the electric wire 10, and the wire holder 24 is fixed on the protective shell 19; the joint 23 is fixed on the protective shell 19, and the watch glass 22, the cover 21 and the sealing ring thereof are respectively fixed on the protective shell 19, so that the internal mechanism of the protective shell 19 can be protected from mechanical damage and invasion of dirt and rainwater. One end of the conduit is connected with the base 5 and is reliably sealed; the other end of the conduit is connected with the joint 23 and is reliably sealed; the switch reinforcing mechanism is fixed on the micro switch, and can prevent the shell of the micro switch from being broken when the switch is switched on and off to generate strong vibration, and prevent the trigger button of the micro switch from falling off, so that the vibration resistance of the controller can be greatly improved, and the reliable work of the system can be ensured.
Referring to fig. 4, the connecting arm 9 is connected to one end of the connecting rod 6, and the other end of the connecting rod 6 is connected to the starting end of the displacement amplification mechanism 7; the displacement amplification mechanism 7 is a sector curved surface transmission mechanism and comprises a shaft 70, a sector curved surface gear 71, a central gear 73 and a clamping plate 75; the two clamping plates 75 are arranged, the two clamping plates 75 are fixed on the base 5 at intervals and in parallel, a sector curved surface gear rotating shaft 710 is connected between the clamping plates 75, a transmission arm 711 extends radially and integrally from the center of the sector curved surface gear 71, the sector curved surface gear 71 is installed on the sector curved surface gear rotating shaft 710, and one end of the transmission arm 711 is connected with the other end of the connecting rod 6 as the starting end of the displacement amplification mechanism 7; the central gear 73 is fixedly installed on the shaft 70 as an amplification end of the displacement amplification mechanism 7 and is in meshed connection with the sector curved gear 71; the radius of the sector gear 71 is 3 times smaller than that of the sun gear 73, and therefore, the sector gear can perform an amplification function. The utility model discloses a sulfur hexafluoride gas density controller is because signal generator adopts micro-switch to the control of micro-switch contact is whole by displacement mechanism of amplification through enlargiing after control, utilizes this displacement mechanism of amplification 7 to enlarge the displacement, and the purpose makes the precision improve, reaches the effect of high accuracy.
When the gas density value changes, the bourdon tube 3 and the U-shaped metal piece 4 generate displacement, the displacement is transmitted to the starting end of the displacement amplification mechanism 7 through the connecting rod 6, the amplification end of the displacement amplification mechanism 7 is connected with the trigger button 1011 of the micro switch 101 through the eccentric wheel 111, the trigger button 1011 is driven according to the gas density value and the pressure value, the contact on the micro switch 101 is switched on or off, the micro switch sends a corresponding signal, and the function of the density controller is completed.
The utility model discloses a sulfur hexafluoride gas density controller is based on elastic element bourdon tube 3, utilizes U-shaped metalwork 4 to revise the change pressure and temperature, reacts the change of sulfur hexafluoride gas density. Under the pressure of the measured medium sulfur hexafluoride gas, due to the action of the U-shaped metal piece 4, the change of the density value and the corresponding change of the pressure value force the tail end of the bourdon tube 3 to generate corresponding elastic deformation-displacement, and the elastic deformation-displacement is transmitted to the shaft 70 of the displacement amplifying mechanism 7 by means of the U-shaped metal piece 4 and the connecting rod 6, and the shaft 70 is transmitted to the pointer 2, so that the density value of the measured sulfur hexafluoride gas is indicated on the dial 1. If air leaks, the density value of the sulfur hexafluoride gas is reduced to a certain degree (reaching an alarm or locking value), the bourdon tube 3 generates corresponding downward displacement, the connecting arm 9 is enabled to move downward through the U-shaped metal piece 4 and is transmitted to the connecting rod 6, the connecting rod 6 is transmitted to the displacement amplifying mechanism 7, the fan-shaped shaft 71 is transmitted to the central shaft and is amplified, the central shaft 72 drives the eccentric wheel 111 to rotate, when the density value reaches a certain degree, the eccentric wheel 111 triggers the trigger button 1011 of the microswitch 101, the contact of the microswitch 101 is switched on, and a signal (alarm or locking) is sent out to monitor and control the density of the sulfur hexafluoride gas in equipment such as an electrical switch and the like, so that. If the density value is increased, the pressure value is correspondingly increased to a certain degree, the Bowden tube 3 also generates corresponding upward displacement, the connecting arm 9 is enabled to move upward through the U-shaped metal piece 4 and is transmitted to the connecting rod 6, the connecting rod 6 is transmitted to the displacement amplification mechanism 7, the fan-shaped shaft 71 is transmitted to the central shaft 72, the central shaft 72 drives the eccentric wheel 111, when the density value is increased to a certain degree, the eccentric wheel 1113 does not trigger the micro switch 101, the contact of the micro switch 101 is disconnected, and the signal (alarm or locking) is released.
The utility model discloses in, micro-switch 101 set up two sets ofly at least, preferably set up three groups, the eccentric wheel that corresponds also sets up three groups, set up three micro-switches of group and can guarantee that the alarm is by the safe seeing off.
The utility model discloses in, can also set up the shockproof oil in the protective housing 19 and keep away the pad that shakes, the surface parcel of protective housing 19 has the heat preservation, makes the protection effect of protective housing better like this.
To sum up, the utility model discloses can convert sulfur hexafluoride gas density value to current signal (4 ~ 20mA), realize remote transmission, and then realize the density of on-line monitoring sulfur hexafluoride gas electrical equipment this density controller is owing to signal generator adopts micro-switch in addition to the control of micro-switch contact is whole to be controlled by displacement amplification mechanism after enlargiing, the purpose makes the precision improve, reach the effect of high accuracy, so the precision is high, the contact electrical property is good, long-lived, temperature compensation performance is more accurate, is a genuine high performance's teletransmission formula sulfur hexafluoride gas density controller.
It should be understood by those skilled in the art that the above embodiments are only used for illustrating the present invention, and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (7)
1. A remote transmission sulfur hexafluoride gas density controller is characterized in that: the displacement amplifying mechanism is connected with the end seat through the connecting device, and when the Bardon tube deforms due to under-pressure, the deformation quantity is transmitted to the displacement amplifying mechanism through the end seat, and the displacement amplifying mechanism drives the low-pressure warning device to act to warn after the Bardon tube is amplified; the displacement amplifying mechanism comprises two clamping plates, a fan-shaped curved surface gear, a central gear, a connecting rod, a connecting arm and a U-shaped metal piece, wherein the two clamping plates are arranged in parallel, the fan-shaped curved surface gear is arranged in a space between the two clamping plates and is connected with the two clamping plates through a fan-shaped curved surface gear rotating shaft, a rotating shaft is also arranged on the clamping plates and is arranged at the lower part of the left side of the clamping plates, the rotating shaft vertically penetrates through the two clamping plates, the central gear is arranged at the position of the rotating shaft in the inner space of the two clamping plates and is mutually meshed with the rotating shaft of the fan-shaped curved surface gear, a transmission arm is arranged on the fan-shaped curved surface gear, the transmission arm radially extends towards the outer side of the fan-shaped curved surface gear, a sliding groove is arranged on the side surface of the upper, the other end of the connecting rod is connected with one end of a connecting arm, the other end of the connecting arm is fixedly arranged at one end of a U-shaped metal piece, and the other end of the U-shaped metal piece is fixedly arranged with an end seat; the low-voltage warning device comprises a microswitch, the microswitch is electrically connected with the warning device, the microswitch is arranged in a space above the rear side of the base, at least 2 groups of microswitches are arranged, a trigger button is arranged at the bottom of the microswitch, a central shaft is arranged at the rear end of the rotating shaft, the central shaft and the rotating shaft are coaxially arranged, a plurality of eccentric wheels are arranged on the side wall of the central shaft, the eccentric wheels are arranged below the microswitch, and when the eccentric wheels rotate to coincide with the microswitch, the eccentric wheels push the trigger button to enable the microswitch to be conducted;
still include electron density measurement transmission equipment, electron density measurement transmission equipment includes pressure transmitter, temperature transmitter and integrated circuit, temperature transmitter contacts with the left surface or the right flank of base, pressure transmitter contacts with the trailing flank of base, and integrated circuit is located the inside or the rear side of protective housing.
2. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: the front end of the base is provided with a dial, the front side of the dial is provided with a pointer, and the pointer is fixedly connected with the front end of the rotating shaft.
3. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: the base outside set up the protective housing, the leading flank of protective housing sets up the round hole, the round hole side sets up the groove, sets up calibrated scale glass on the round hole, sets up the safety cover in calibrated scale glass's front side, fixes calibrated scale glass through safety cover and protective housing, sets up the sealing washer on safety cover and protective housing contact surface.
4. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: the lower extreme of buckton pipe is connected the pipe, and pipe one end stretches into in the base, stretches out the protective housing on the other end, sets up the joint at the tip that the pipe stretches out the one end of protective housing.
5. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: the integrated circuit comprises a printed board, wherein an amplifying circuit, an MCU, a power supply module, an A/D converter, a voltage-current converter and a current galvanostat are arranged on the printed board, the gas density controller collects pressure and temperature signals through a pressure transmitter and a temperature transmitter, the pressure and temperature signals are processed through embedded computer software and converted into density values, the density values of the sulfur hexafluoride gas are converted into current signals after being processed through the A/D converter, the voltage-current converter and the current galvanostat, remote transmission is achieved, and then the density of sulfur hexafluoride gas electrical equipment is monitored on line.
6. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: the protective housing is filled with shockproof oil, a shock-absorbing pad is arranged on the protective housing, and a heat-insulating layer wraps the outer surface of the protective housing.
7. The remote sulfur hexafluoride gas density controller recited in claim 1 wherein: and a wire holder is arranged on the lower side of the protective shell, and the contact of the micro switch is connected with the wire holder through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522603.6U CN209929222U (en) | 2019-04-17 | 2019-04-17 | Remote transmission type sulfur hexafluoride gas density controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920522603.6U CN209929222U (en) | 2019-04-17 | 2019-04-17 | Remote transmission type sulfur hexafluoride gas density controller |
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| CN209929222U true CN209929222U (en) | 2020-01-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595628A (en) * | 2020-11-23 | 2021-04-02 | 国网安徽省电力有限公司检修分公司 | Oil-free anti-seismic remote transmission type sulfur hexafluoride gas density monitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595628A (en) * | 2020-11-23 | 2021-04-02 | 国网安徽省电力有限公司检修分公司 | Oil-free anti-seismic remote transmission type sulfur hexafluoride gas density monitor |
| CN112595628B (en) * | 2020-11-23 | 2024-04-05 | 国网安徽省电力有限公司检修分公司 | Oilless anti-seismic remote sulfur hexafluoride gas density monitor |
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