CN211013113U - Automatic calibrating device of carbon balance oil consumption instrument - Google Patents
Automatic calibrating device of carbon balance oil consumption instrument Download PDFInfo
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- CN211013113U CN211013113U CN201922478800.5U CN201922478800U CN211013113U CN 211013113 U CN211013113 U CN 211013113U CN 201922478800 U CN201922478800 U CN 201922478800U CN 211013113 U CN211013113 U CN 211013113U
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Abstract
An automatic calibrating device for a carbon balance fuel consumption instrument comprises a data acquisition control unit, a fan, a flow numerical control valve, a digital standard flowmeter and a plurality of gas electromagnetic valves, wherein a gas input port of each gas electromagnetic valve is connected with a gas pipe used for connecting a standard gas cylinder, gas output ports of all the gas electromagnetic valves are connected in parallel with a gas pipe used for connecting a calibration gas input port of the carbon balance fuel consumption instrument, the fan, the flow numerical control valve and the digital standard flowmeter are arranged in the same wind pipe used for connecting a gas input port to be tested of the carbon balance fuel consumption instrument, the data acquisition interface of the data acquisition control unit is connected with the data output port of the digital standard flowmeter, and the control signal output interface of the data acquisition control unit is connected with the electric control ports of the fan, the gas electromagnetic valve and the flow numerical control valve. The utility model has the advantages that improved verification efficiency, reduced examination personnel's intensity of labour, it is more objective to detect data.
Description
Technical Field
The utility model relates to a device of examination carbon balanced oil consumption appearance is exclusively used in.
Background
The carbon balance fuel consumption meter is a metering device mainly used for detecting fuel consumption indexes of vehicles. As a metering device, a metering department needs to use a special calibrating device to calibrate the carbon-balanced fuel consumption meter every year. In order to ensure the accuracy of the full-scale range, the carbon-containing gas with different concentrations is used for detecting the carbon-balanced fuel consumption instrument, and different flow points are used for detecting the exhaust flow of the carbon-balanced fuel consumption instrument. In the verification process, the air bottle needs to be replaced manually, the flow of the fan needs to be adjusted manually, and data are recorded manually, so that the verification workload is large, and the operation time is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic calibrating installation of carbon balanced oil consumption appearance to breakthrough the above limitation, bring the convenience for metrological verification work.
The utility model discloses a realize like this: an automatic calibrating device for a carbon balance fuel consumption meter comprises a data acquisition control unit, a fan, a flow numerical control valve, a digital standard flowmeter and a plurality of gas electromagnetic valves;
the gas input ports of the plurality of gas electromagnetic valves are respectively connected with a gas pipe used for connecting a standard gas cylinder, and the gas output ports of the plurality of gas electromagnetic valves are connected in parallel with a gas pipe used for connecting a calibration gas input port of a carbon balance oil consumption instrument;
the fan, the flow numerical control valve and the digital standard flowmeter are arranged in the same air pipe which is used for connecting a gas input port to be detected of the carbon balance oil consumption instrument;
the data acquisition control unit is provided with a data acquisition interface and a control signal output interface, and the data acquisition interface is connected with a data output port of the digital standard flowmeter and is used for connecting a data output port of the carbon balance fuel consumption instrument; and the control signal output interface is connected with the fan, the electric control port of each gas electromagnetic valve and the electric control port of the flow numerical control valve.
The utility model has the advantages that improved verification efficiency, reduced examination personnel's intensity of labour, it is more objective to detect data. The concrete expression is as follows: 1. through the control of the data acquisition control unit on the plurality of gas electromagnetic valves, different standard gas cylinders can be automatically selected and connected, so that the standard gas with different concentrations can be automatically introduced into the carbon balance oil consumption instrument to be detected, and the gas cylinders do not need to be manually replaced; 2. the flow of the gas circuit can be automatically controlled by controlling the fan and the flow numerical control valve through the data acquisition control unit, so that different flow points of the carbon balance oil consumption meter can be verified without manually adjusting the flow of the fan; 3. the data acquisition control unit records and processes the data output by the carbon balance oil consumption instrument and outputs the verification result, so that the data is not required to be manually recorded, the detection efficiency is improved, and the detection data is more objective and accurate.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the calibration apparatus of the present invention;
fig. 2 is a schematic diagram of the calibrating installation connected with a standard gas cylinder and a carbon balance oil consumption instrument.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
An embodiment of the automatic calibrating installation of carbon balanced fuel consumption appearance is shown in figure 1, this calibrating installation includes data acquisition control unit 1, fan 2, flow numerical control valve 3, digital standard flowmeter 4 to and a plurality of gas solenoid valve 5.
The gas inlet of each gas solenoid valve 5 is connected with a gas pipe 6. As shown in fig. 2, each gas tube 6 is used to connect to a standard gas cylinder 7. Different standard gas cylinders are filled with standard carbon-containing gas mixtures (HC/CO/CO 2 gas mixtures) with different concentrations. The gas outlets of all the gas solenoid valves 5 are connected in parallel to the same gas pipe 8. As shown in fig. 2, the gas pipe 8 is used to connect to a calibration gas input port 11 of the carbon fuel consumption balance 10.
The fan 2, the flow numerical control valve 3 and the digital standard flowmeter 4 are arranged in the same air pipe 9. As shown in fig. 2, the air duct 9 is used to connect to a gas inlet 12 of the carbon fuel consumption balance 10. Specifically, the flow numerical control valve 3 may employ a numerical control butterfly valve.
The data acquisition control unit 1 is provided with a data acquisition interface 1a and a control signal output interface 1 b. The data acquisition interface 1a is connected with a data output port of the digital standard flowmeter 4. As shown in fig. 2, the data acquisition interface 1a is further configured to connect to a data output port 13 of the carbon fuel consumption balance meter 10. The data acquisition interface 1a CAN adopt conventional data interface types such as RS232, RS485, CAN and the like.
And a control signal output interface 1b of the data acquisition control unit 1 is connected with the fan 2, an electric control port of each gas electromagnetic valve 5 and an electric control port of the flow numerical control valve 3. The signal output type of the control signal output interface 1b is determined according to the types of the fan 2, the gas electromagnetic valve 5 and the flow numerical control valve 3. Taking the fan as an example, if the fan 2 is a variable frequency fan, the control signal output interface 1b connected to the fan 2 outputs a variable frequency signal, and if the fan 2 is a voltage-regulated fan, the control signal output interface 1b connected to the fan 2 outputs a variable voltage.
It should be noted that the data acquisition interface 1a may be implemented by a plurality of sockets or plugs, and similarly, the control signal output interface 1b may be implemented by a plurality of sockets or plugs.
It should be noted that, if the flow rate numerical control valve 3 has a feedback signal output end, which can feed back the opening degree of the valve body itself, the feedback signal output end of the flow rate numerical control valve 3 may be connected to the data acquisition interface 1a of the data acquisition control unit 1, and the data acquisition control unit 1 monitors the working state of the flow rate numerical control valve 3 in real time, so as to control the flow rate numerical control valve 3 more accurately. Similarly, if the fan 2 or the gas solenoid valve 5 has a feedback signal output end, the feedback signal output end can be connected to the data acquisition interface 1a of the data acquisition control unit 1, and the data acquisition control unit 1 monitors the working states of the fan 2 and the gas solenoid valve 5 in real time.
The data acquisition control unit 1 can adopt a P L C control circuit with a display screen and keyboard input, a microcomputer or a combination thereof.
The working principle of the calibrating device is described in detail below with reference to the accompanying drawings.
Referring to fig. 2, the standard gas cylinders 7 containing carbon-containing standard mixed gas with different concentrations are connected with different gas electromagnetic valves 5, and the data acquisition control unit 1 opens the corresponding gas electromagnetic valves 5 according to the standard gas concentration value set by the verification personnel, so that the carbon-containing standard mixed gas with the corresponding concentration is introduced into the calibration gas input port 11 of the carbon balance fuel consumption instrument 10 to be detected. After stabilization, the data acquisition control unit 1 reads and records the gas concentration data output by the carbon-balanced fuel consumption meter 10, averages the gas concentration data, compares the final result with a standard value as a final result, and calculates an error. The data acquisition control unit 1 performs such an operation on the concentration data of each gas output by the carbon fuel consumption balance meter 10.
When the standard carbon-containing mixed gas of all the gas cylinders 7 is respectively introduced into the carbon balance oil consumption instrument 10 to complete verification, the data acquisition control unit 1 starts the fan 2, and performs closed-loop control on the flow of the fan 2 through the flow numerical control valve 3 and the digital standard flow meter 4 until the flow of the fan 2 reaches a set value, so that the gas input port 12 to be detected of the carbon balance oil consumption instrument 10 to be detected obtains the set flow. Then the data acquisition control unit 1 reads the flow value output by the carbon balance fuel consumption instrument 10 to be detected, compares the flow value with the set flow value, namely the current flow value of the digital standard flowmeter 4, and calculates the error. When the verification of different flow values (such as high, middle and low flow values) is completed, the data acquisition control unit 1 automatically outputs all the verification results. The output of the verification results may be displayed on a display screen and/or output to a data store.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. For those skilled in the art, without departing from the spirit of the present invention, several modifications and improvements can be made without departing from the scope of the present invention. The protection scope of the present invention should be subject to the appended claims.
Claims (1)
1. The utility model provides an automatic calibrating installation of carbon balanced oil consumption appearance which characterized in that: the system comprises a data acquisition control unit, a fan, a flow numerical control valve, a digital standard flowmeter and a plurality of gas electromagnetic valves;
the gas input ports of the plurality of gas electromagnetic valves are respectively connected with a gas pipe used for connecting a standard gas cylinder, and the gas output ports of the plurality of gas electromagnetic valves are connected in parallel with a gas pipe used for connecting a calibration gas input port of a carbon balance oil consumption instrument;
the fan, the flow numerical control valve and the digital standard flowmeter are arranged in the same air pipe which is used for connecting a gas input port to be detected of the carbon balance oil consumption instrument;
the data acquisition control unit is provided with a data acquisition interface and a control signal output interface, and the data acquisition interface is connected with a data output port of the digital standard flowmeter and is used for connecting a data output port of the carbon balance fuel consumption instrument; and the control signal output interface is connected with the fan, the electric control port of each gas electromagnetic valve and the electric control port of the flow numerical control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478800.5U CN211013113U (en) | 2019-12-31 | 2019-12-31 | Automatic calibrating device of carbon balance oil consumption instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478800.5U CN211013113U (en) | 2019-12-31 | 2019-12-31 | Automatic calibrating device of carbon balance oil consumption instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211013113U true CN211013113U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922478800.5U Active CN211013113U (en) | 2019-12-31 | 2019-12-31 | Automatic calibrating device of carbon balance oil consumption instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211013113U (en) |
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2019
- 2019-12-31 CN CN201922478800.5U patent/CN211013113U/en active Active
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