CN206540790U - A kind of digital display density transmitter - Google Patents
A kind of digital display density transmitter Download PDFInfo
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- CN206540790U CN206540790U CN201720036305.7U CN201720036305U CN206540790U CN 206540790 U CN206540790 U CN 206540790U CN 201720036305 U CN201720036305 U CN 201720036305U CN 206540790 U CN206540790 U CN 206540790U
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Abstract
The utility model is related to a kind of digital display density transmitter, including housing, the dial being arranged on housing and the control chip installed in enclosure interior, dial includes the light viewing area of multiple different colours, each light viewing area is made up of the display lamp of one or more same colors, each display lamp indicates a gas density scope, the external data that control chip is received according to digital display density transmitter is calculated, obtain the gas density scope that is presently in of under test gas, and under send instructions to light display lamp corresponding with gas density scope.The utility model indicates the density state of under test gas in air chamber using the display lamp on dial, make staff can be with simple and clear situation about understanding in air chamber, and refresh, show the exact numerical of under test gas density without the moment, but density range substantially is represented with display lamp, and accurate numerical value is checked on backstage, cost is not only reduced, power consumption has been also saved significantly on.
Description
Technical field
The utility model is related to gas-monitoring field, more particularly to a kind of digital display density transmitter.
Background technology
Gas density is monitored, especially the density of pernicious gas is monitored be modern industry important ring
Section.By taking sulfur hexafluoride gas as an example, sulfur hexafluoride electric product is widely used in the enterprises such as electric power, industrial and mineral, promotes electric power row
The fast development of industry, it is ensured that the reliable and secure operation of sulfur hexafluoride electric product is one of vital task of power department.Hexafluoro
The arc quenching characteristic and insulation characterisitic for changing sulphur gas are the important guarantees of electric product safe operation, if lithium in electric equipment products
Sulphur gases did escape, can not only cause larger security incident, and surrounding air can be polluted, therefore to electrically production
It is very necessary that the density of sulfur hexafluoride gas, which is monitored, in product.
Transmitter is the important component of gas controlling device.The effect of transmitter is that the output signal of sensor is changed into
Can be recognized by controller signal (or by the non electrical quantity that sensor is inputted be converted into electric signal and meanwhile amplify so as to for a distant place measurement
With the signal source of control) converter.Sensor and transmitter together constitute with the monitoring signals source automatically controlled.Different physics
Amount needs different sensors and corresponding transmitter.The species of transmitter is a lot, mainly there is temperature transmitter, pressure inverting
Device, flow transmitter, current transducer, voltage transmitter etc..
The U of Chinese patent literature CN 202661348 disclose a kind of SF6 digital displays density transmitter, include body interface,
Pressure sensor is provided with body interface, body interface is connected with sensor holder, and sensor holder is connected with one end of shell, sensing
Device seat is also connected by support column with circuit board, and circuit board is located in shell, and the other end of shell passes through aviation socket and aviation
Plug is engaged, and aviation plug is connected with cable, and the status information of pressure sensor and temperature sensor collection is changed by A/D
The accessible information of single-chip microcomputer is formed, gas density value is transmitted with RS485 form of communication after single-chip microcomputer is handled, and can pass through
The alarm of the present utility model of RS485 communication settings, locking value, with simple in construction, accuracy rate is high, workload is small, efficiency high and
The characteristics of incipient fault being found in time.But the digital display density transmitter of this application only exports analog or digital signal, it is impossible to
Check the density case of SF6 air chambers on the spot at the scene.
The B of Chinese patent literature CN 101464671 disclose a kind of sulfur hexafluoride gas and its derivative gas-monitoring monitoring
Apparatus and method, the invention is made up of main frame and the multiple transmitters being attached thereto, and main frame mainly includes cabinet, touches screen display
Show device, mainboard CPU, calendar clock device, voice device, nonvolatile memory, host power supply and respectively with blower fan and alarm
The connected drive device of device；Main frame is with that can realize that the host computer of remote control is connected；Transmitter mainly includes cabinet, collection and passed
Sensor, data mainboard CPU, high-pressure modular.The invention devises the double detections of two-way and compares sulfur hexafluoride gas and its derivative gas
Concentration monitor circuit, when being had a question to the Monitoring Data of main sulfur hexafluoride gas and its derivative gas concentration observation circuit, automatically
Start the sulfur hexafluoride gas compared and its derivative gas concentration observation circuit is compared, substantially increase reliability.It can match somebody with somebody
A variety of transmitters are connect, the independent monitoring capacity with multiple regions, and can be real to multiple objects such as ventilating fan, temperature-dropping fan etc.
Existing coordinated signals；And with data recording function, record preservation is carried out to various alarms and the action of control object, record has a power failure
Do not lose；It can be docked by the way that corresponding bitcom is coupled with software for substation monitoring and control configuration, realize the remote signalling of system, remote measurement, distant
Brake；The invention simultaneously also has light structure, and the features such as installation and working service facilitate is a kind of preferably new hexafluoro
Change the device of sulphur gas and its derivative gas content monitoring.But, the display device of the patent of invention is complex, accordingly
Ground adds the cost of product and the power consumption of equipment.Due to accurate density value can backstage checked, at the scene only need understand
The density state of sulfur hexafluoride air cell substantially, it is possible to optimized to display device, reaching reduces cost, reduces power consumption
Purpose.
So, how to provide a kind of small power consumption, cost low digital display density transmitter so that staff at the scene can
It is the problem of those skilled in the art need solution to be clearly visually known the density state of gas in air chamber.
Utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of digital display density transmitter, including housing,
The dial and the control chip installed in enclosure interior being arranged on housing, the light that dial includes multiple different colours show
Show area, each light viewing area is made up of the display lamp of one or more same colors, each display lamp indicates that a gas is close
Scope is spent, the external data that control chip is received according to digital display density transmitter is calculated, obtain the current institute of under test gas
The gas density scope at place, and under send instructions to light display lamp corresponding with gas density scope.
Further, digital display density transmitter is connected with external sensor, and external sensor is used to gather external data, outside
Portion's data are the analogue data of under test gas.
Preferably, external sensor is temperature and pressure integrative sensor, and analogue data includes the current pressure simulation of under test gas
Data and temperature simulation data.
Further, control chip includes the data receipt unit, Date Conversion Unit, data processing unit being connected with each other
And data determining unit, data receipt unit receives analogue data, and analogue data is converted to numerical data by Date Conversion Unit,
And transmit to data processing unit, data processing unit calculates the current gas density value of under test gas, number according to numerical data
It is judged that unit judges the gas density scope that under test gas is presently according to gas density value, and under send instructions to come some and expose
The display lamp answered.
Preferably, control chip also includes data outputting unit, the number that data outputting unit is used in output control chip
Digital data and gas density value.
Further, the output interface of data outputting unit is RS485 interfaces.
Preferably, power regulator is additionally provided with housing, power regulator includes multiple PMUs, dial
It is connected respectively from different PMUs with control chip.
Further, display lamp is LED display lamps.
Preferably, light viewing area includes red, yellow and green viewing area, and it is respectively by multiple red, yellow
Constituted with the LED display lamps of green.
Further, under test gas is sulfur hexafluoride gas.
The digital display density transmitter that the utility model is provided indicates to treat in air chamber using the display lamp on dial
The density state of gas is surveyed, makes staff can be with simple and clear situation about understanding in air chamber, the utility model is without the moment
Refresh, show the exact numerical of under test gas density, but density range substantially is represented with display lamp, and accurate numerical value leads to
Later platform is checked, is not only reduced the cost of digital display density transmitter, has been also saved significantly on power consumption.
For the above of the present utility model can be become apparent, preferred embodiment cited below particularly is simultaneously detailed with reference to accompanying drawing
Explanation.
Brief description of the drawings
Fig. 1 is digital display density transmitter structure chart；
Fig. 2 is graduated disk structure figure；
Fig. 3 is control chip internal element connection figure.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.Although description of the invention will combine preferred embodiment
Introduce together, but this feature for not representing this invention is only limitted to the embodiment.On the contrary, being invented with reference to embodiment
The purpose of introduction is the other selections or transformation for being possible to extend to cover the claim based on the present invention.In order to carry
Understand for the depth to the present invention, many concrete details will be included in describing below.The present invention can also be thin without using these
Section is implemented.In addition, in order to avoid the emphasis of the chaotic or fuzzy present invention, some details will be omitted in the de-scription.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
" on ", " under ", "left", "right", " top ", " bottom " in addition, used in the following description, should not be construed as pair
The limitation of the present invention.
As shown in figure 1, the utility model provides a kind of digital display density transmitter 100, including housing, it is arranged on housing
Dial 1 and the control chip 2 installed in enclosure interior.Dial 1 includes the light viewing area of multiple different colours, every
Numeral incremental in the direction of the clock is labeled with the beginning and end of individual light viewing area, the density of the digitized representation gas
Value, as shown in Figure 2.The quantity of light viewing area can be increased or decreased according to the required precision of monitoring.Each light shows
Show that area is made up of the display lamp 11 of one or several same colors, according to position of the display lamp 11 on dial, each
Display lamp 11 can indicate a gas density scope.Control chip 2 receives external data, and it is calculated, and is treated
Survey the gas density scope that is presently in of gas, and under send instructions to light the display lamp corresponding with the gas density scope
11。
The digital display density transmitter 100 that the utility model is provided indicates gas using the display lamp 11 on dial 1
The density state of under test gas in room, make staff can with simple and clear situation about understanding in air chamber, the utility model without
Take carve refresh, the exact numerical of display under test gas density, but represent gas density scope substantially with display lamp 11, both
The demand that staff is understood the state in air chamber is met, the cost of digital display density transmitter 100 is reduced again, is shown
Work saves power consumption.
Further, digital display density transmitter 100 is connected with external sensor, and external sensor is used to gather external number
According to the data that external sensor is collected are the analogue data of under test gas.Preferably, the simulation number that external sensor is collected
According to pressure simulation data and temperature simulation data including under test gas.Due to the sensor and the sensor of measuring pressure of testing temperature
All it is the more commonly used sensor of in the market, advantageously reduces the cost of monitoring device, therefore utilize the temperature and pressure of gas
It is a kind of method for optimizing for obtaining gas density to calculate gas density.Pass between temperature, pressure and the gas density of gas
It is to be：
In formula：P20 is the pressure value of gas at 20 DEG C, as gas density, units MPa；
Pt is the pressure value of gas at t DEG C, units MPa；
T is gas temperature angle value, unit DEG C.
External sensor in the utility model is temperature and pressure integrative sensor, and temperature sensor and pressure sensor are closed into two
For one, the quantity of reduction external sensor, convenient installation.
Further, as shown in figure 3, control chip 2 includes data receipt unit 21, the Date Conversion Unit being connected with each other
22nd, data processing unit 23 and data determining unit 24, data receipt unit 21 receive analogue data, and Date Conversion Unit 22 will
Analogue data is converted to numerical data, and transmits to data processing unit 23, and data processing unit 23 is calculated according to numerical data
The current gas density value of under test gas, data determining unit 24 judges the gas that under test gas is presently according to gas density value
Volume density scope, and under send instructions to light corresponding display lamp 11.Analogue data is converted to numeral by Date Conversion Unit 22
During data, first analogue data can be amplified, then convert it to numerical data.Numerical data herein can be with
It is the pressure on the number data and temperature digital data of gas or other digital numbers of foundation can be calculated as gas density
According to.
Preferably, control chip 2 also includes data outputting unit 25, and data outputting unit 25 is used for output control chip 2
In numerical data and gas density value.Data outputting unit 25 can be by the numerical data sum obtained in Date Conversion Unit 22
Backstage receiving terminal is sent to according to the gas density value obtained in processing unit 23, facilitates staff in state of the backstage to air chamber
Carry out more accurate observation and control.
Further, the output interface of data outputting unit 25 is RS485 interfaces, and RS485 interfaces are data outputting units
25 preferred output interface.RS485 interfaces only need to two connections, you can to enter between two or more equipment
Row data transfer.It is very convenient when RS485 interfaces are for multi-point interconnection, many signal wires can be saved.Can using RS485 interfaces
Distributed system is constituted to network, it allows 32 drivers in parallel and 32 receivers.
Preferably, power regulator 3 is additionally provided with housing, power regulator 3 includes multiple PMUs, scale
Disk 1 and control chip 2 are connected from different PMUs respectively, so that the independently confession to dial 1 and control chip 2
Electricity is managed.
Further, display lamp 11 is LED display lamps, and LED price is low, and energy consumption is low, can further reduce digital display close
The cost of transmitter 100 is spent, its power consumption is saved.
Preferably, light viewing area includes red, yellow and green viewing area, and it is respectively by multiple red, yellow
Constituted with the LED display lamps of green.Red, yellow and green are preferred mark colors, and user can also select as needed
Other colors.
Further, under test gas is sulfur hexafluoride gas.Sulfur hexafluoride electric product is widely used in electric power, industrial and mineral etc.
Enterprise, the arc quenching characteristic and insulation characterisitic of sulfur hexafluoride gas are the important guarantees of electric product safe operation, if electric equipment products
In sulfur hexafluoride gas leak, can not only cause larger security incident, and surrounding air can be polluted, this
The digital display density transmitter that utility model is provided has great promotional value in sulfur hexafluoride electric product field.
In summary, the utility model provides the low digital display density transmitter of a kind of small power consumption, cost so that work people
Member can just understand the density state for being visually known gas in air chamber at the scene.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (10)
1. a kind of digital display density transmitter, including housing, dial on the housing is set and in the housing
The control chip in portion, it is characterised in that the dial includes the light viewing area of multiple different colours, each light shows
Show that area is made up of the display lamp of one or more same colors, each display lamp indicates a gas density scope, described
The external data that control chip is received according to the digital display density transmitter is calculated, and obtains what under test gas was presently in
Gas density scope, and under send instructions to light the display lamp corresponding with the gas density scope.
2. digital display density transmitter according to claim 1, it is characterised in that the digital display density transmitter is passed with outside
Sensor is connected, and the external sensor is used to gather the external data, and the external data is the simulation of the under test gas
Data.
3. digital display density transmitter according to claim 2, it is characterised in that the external sensor is that temperature and pressure are integrally passed
Sensor, the analogue data includes the current pressure simulation data and temperature simulation data of the under test gas.
4. digital display density transmitter according to claim 2, it is characterised in that the control chip includes what is be connected with each other
Data receipt unit, Date Conversion Unit, data processing unit and data determining unit, the data receipt unit receive described
The analogue data is converted to numerical data by analogue data, the Date Conversion Unit, and is transmitted to the data processing list
Member, the data processing unit calculates the current gas density value of the under test gas, the data according to the numerical data
Judging unit judges the gas density scope that the under test gas is presently according to the gas density value, and issues institute
Instruction is stated to light the corresponding display lamp.
5. digital display density transmitter according to claim 4, it is characterised in that the control chip also includes data output
Unit, the data outputting unit is used to export the numerical data and the gas density value in the control chip.
6. digital display density transmitter according to claim 5, it is characterised in that the output interface of the data outputting unit
For RS485 interfaces.
7. digital display density transmitter according to claim 1, it is characterised in that power supply voltage stabilizing is additionally provided with the housing
Device, the power regulator includes multiple PMUs, the dial and the control chip respectively from different institutes
PMU is stated to be connected.
8. digital display density transmitter according to claim 1, it is characterised in that the display lamp is LED display lamps.
9. digital display density transmitter according to claim 8, it is characterised in that the light viewing area includes red, yellow
Color and green viewing area, it is made up of the LED display lamps of multiple red, yellow and green respectively.
10. according to any described digital display density transmitter in claim 1~9, it is characterised in that the under test gas is six
Sulfur fluoride gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036305.7U CN206540790U (en) | 2017-01-12 | 2017-01-12 | A kind of digital display density transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036305.7U CN206540790U (en) | 2017-01-12 | 2017-01-12 | A kind of digital display density transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206540790U true CN206540790U (en) | 2017-10-03 |
Family
ID=59938988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720036305.7U Active CN206540790U (en) | 2017-01-12 | 2017-01-12 | A kind of digital display density transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206540790U (en) |
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2017
- 2017-01-12 CN CN201720036305.7U patent/CN206540790U/en active Active
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