CN215180047U - Comprehensive calibration device for sensor alarm - Google Patents
Comprehensive calibration device for sensor alarm Download PDFInfo
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- CN215180047U CN215180047U CN202121326260.XU CN202121326260U CN215180047U CN 215180047 U CN215180047 U CN 215180047U CN 202121326260 U CN202121326260 U CN 202121326260U CN 215180047 U CN215180047 U CN 215180047U
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Abstract
The utility model discloses a comprehensive calibration device of a sensor alarm instrument, which comprises a cabinet body and a detection unit, wherein the cabinet body is provided with a negative pressure sealing gas cabin and a gas cylinder cabinet; the gas cylinder cabinet is provided with a plurality of standard gas cylinders arranged in a gas cylinder cabinet, each standard gas cylinder is respectively communicated with a gas mixing cavity through a gas cylinder pipeline, a pressure reducing valve and an electromagnetic valve are respectively arranged on each gas cylinder pipeline, the gas mixing cavity is communicated with a gas pump through a first air pipeline and is communicated with the outside through a second air pipeline, a first air electromagnetic valve and a second air electromagnetic valve are respectively and correspondingly arranged on the first air pipeline and the second air pipeline, a gas outlet of the gas mixing cavity is communicated with an inlet of the multi-way connector through a gas outlet pipeline, each way of outlet of the multi-way connector is respectively communicated with a detection pipeline with a flow meter, and a negative pressure sealed gas cabin is communicated with an exhaust pipeline with a pipeline exhaust device and an air purification device. The utility model discloses the advantage lies in can detect many instruments simultaneously, can dispose the automatic distribution of gas appearance as required.
Description
Technical Field
The utility model belongs to the technical field of the sensor detects and specifically relates to a calibration equipment is synthesized to sensor alarm.
Background
At present, most of gas sensors and alarm instruments in various industries are manually operated, detection instruments are simple and crude, one instrument is used for detecting for half an hour according to the detection standard, time and labor are consumed, the instrument is manually operated, the process is complicated, the instrument is busy in calculation, and the error rate is high.
Disclosure of Invention
An object of the utility model is to provide a calibration equipment is synthesized to sensor alarm.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
sensor alarm instrument synthesize calibration equipment, calibration equipment includes
The cabinet body is provided with a negative pressure sealing gas cabin and a gas cylinder cabinet;
the detection unit is provided with a plurality of standard gas cylinders, the standard gas cylinders are arranged in the gas cylinder cabinet, each standard gas cylinder is respectively communicated with a gas mixing cavity through a gas cylinder pipeline, a pressure reducing valve and an electromagnetic valve are respectively arranged on each gas cylinder pipeline, an air inlet of the gas mixing cavity is communicated with an air pump through a first air pipeline, a first air electromagnetic valve is arranged on the first air pipeline, an air outlet of the gas mixing cavity is communicated with the outside through a second air pipeline, a second air electromagnetic valve is arranged on the second air pipeline, an air outlet of the gas mixing cavity is communicated with an inlet of a multi-way connector through an air outlet pipeline, each outlet of the multi-way connector is respectively communicated with one detection pipeline, a flow meter is respectively arranged on each detection pipeline, and an exhaust pipeline is communicated in the negative pressure sealing gas cabin, the exhaust pipeline is provided with a pipeline exhaust device and an air purification device;
the outlet of each detection pipeline extends into the negative pressure sealed gas cabin, and the outlet end of each detection pipeline is provided with a sensor to be detected; the flowmeters are uniformly distributed on the cabinet body at intervals.
The calibration device comprises a control unit, wherein the control unit comprises a PLC, a current acquisition module, a frequency acquisition module, a communication module, a data interface terminal and a sensor wiring terminal;
the control output end of the PLC is respectively electrically connected with the control input ends of the pressure reducing valve, the electromagnetic valve, the air pump, the first air electromagnetic valve, the second air electromagnetic valve, the pipeline exhaust device and the air purification device, the signal input end of the PLC is respectively electrically connected with the signal output ends of the flowmeter, the data interface terminal, the sensor wiring terminal, the current acquisition module and the frequency acquisition module, and the PLC is in communication connection with an upper computer through the communication module.
And a gas leakage alarm device is arranged in the gas cylinder cabinet.
The utility model discloses the advantage lies in can detect many instruments simultaneously, easy operation, and safe convenient need not the conversion, takes a breath automatically, exhausts, carries out according to the state newest standard completely, can dispose the automatic distribution of gas appearance as required.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the pipeline connection of the present invention.
Fig. 3 is a schematic block circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1, 2 and 3, the comprehensive calibration device for the sensor alarm instrument of the present invention comprises a cabinet body 10, wherein the cabinet body 10 is provided with a negative pressure sealed gas cabin 20 and a gas cylinder cabinet 21, the negative pressure sealed gas cabin 20 can isolate the detected instrument, thereby avoiding gas leakage, ensuring safe and reliable operation, and effectively reducing environmental pollution and personal injury; the gas distribution device comprises a detection unit, wherein the detection unit is provided with a plurality of standard gas cylinders 30 (the number of the gas cylinders is 8 according to the gas distribution requirement), the 8 standard gas cylinders 30 are arranged in a gas cylinder cabinet 21, each standard gas cylinder 30 is respectively communicated with a gas mixing cavity 32 through a gas cylinder pipeline 31, a pressure reducing valve 33 and an electromagnetic valve 34 are respectively arranged on each gas cylinder pipeline 31, and a plurality of standard gas samples with different concentrations can be configured, and the accuracy is +/-1% FS; an air inlet of the air mixing cavity 32 is communicated with an air pump 36 through a first air pipeline 35, a first air electromagnetic valve 37 is arranged on the first air pipeline 35, an air outlet of the air mixing cavity 32 is communicated with the outside through a second air pipeline 38, a second air electromagnetic valve 39 is arranged on the second air pipeline 38, an air outlet of the air mixing cavity 32 is communicated with an inlet of the multi-way joint 50 through an air outlet pipeline 40, each way outlet of the multi-way joint 50 is respectively communicated with one detection pipeline 51 (the number of the detection pipelines 51 is not equal according to detection requirements, 8 in the figure), each detection pipeline 51 is respectively provided with a flow meter 60, an exhaust pipeline 70 is communicated with the negative pressure sealed air chamber 20, and a pipeline exhaust device 71 and an air purification device 72 are arranged on the exhaust pipeline 70; the outlet of each detection pipeline 51 extends into the negative pressure sealed gas cabin 20, and the outlet end of each detection pipeline is provided with a sensor 82 to be detected through a data interface terminal 80 and a sensor wiring terminal 81; the flowmeters 60 are uniformly distributed on the cabinet body 10 at intervals; the control unit comprises a PLC, a current acquisition module, a frequency acquisition module, a communication module, a data interface terminal 80 and a sensor wiring terminal 81; wherein, PLC's control output end is connected with solenoid valve 34, air pump 36, first air solenoid valve 37, second air solenoid valve 39 and pipeline exhaust apparatus 71's control input end electricity respectively, PLC's signal input end is connected with flowmeter 60, data interface terminal 80, sensor binding post 81, current acquisition module and frequency acquisition module's signal output end electricity respectively, PLC passes through communication module and upper computer communication connection, be provided with gas leakage alarm device in gas cylinder cabinet 21, can ensure safety.
The working principle is as follows: during the detection test, the instrument to be detected is connected with the equipment through the data interface terminal 80 and the sensor wiring terminal 81 as required, the 8 standard gas cylinders 30 start to be detected through automatic gas distribution of the preset proportioning proportion, the acquired data information is uploaded to the software of the upper computer through the current acquisition module, the frequency acquisition module and the communication module, and the verification, calibration and test, data storage and printing operations are carried out. After the test is completed, the second air solenoid valve 39, the air pump 36, the pipeline exhaust device 71 and the air purification device 72 are opened, the residual gas in the pipeline can be rapidly cleaned, the exhaust gas is exhausted outdoors after being purified through the exhaust pipeline 70, the whole instrument calibration and inspection process is automated, manpower is liberated, and calibration and inspection of the instrument and the instrument are performed more efficiently, accurately and safely.
Claims (3)
1. A comprehensive calibration device for a sensor alarm is characterized in that the calibration device comprises
The cabinet body is provided with a negative pressure sealing gas cabin and a gas cylinder cabinet;
the detection unit is provided with a plurality of standard gas cylinders, the standard gas cylinders are arranged in the gas cylinder cabinet, each standard gas cylinder is respectively communicated with a gas mixing cavity through a gas cylinder pipeline, a pressure reducing valve and an electromagnetic valve are respectively arranged on each gas cylinder pipeline, an air inlet of the gas mixing cavity is communicated with an air pump through a first air pipeline, a first air electromagnetic valve is arranged on the first air pipeline, an air outlet of the gas mixing cavity is communicated with the outside through a second air pipeline, a second air electromagnetic valve is arranged on the second air pipeline, an air outlet of the gas mixing cavity is communicated with an inlet of a multi-way connector through an air outlet pipeline, each outlet of the multi-way connector is respectively communicated with one detection pipeline, a flow meter is respectively arranged on each detection pipeline, and an exhaust pipeline is communicated in the negative pressure sealing gas cabin, the exhaust pipeline is provided with a pipeline exhaust device and an air purification device;
the outlet of each detection pipeline extends into the negative pressure sealed gas cabin, and the outlet end of each detection pipeline is provided with a sensor to be detected; the flowmeters are uniformly distributed on the cabinet body at intervals.
2. The sensor alarm comprehensive verification device of claim 1, wherein: the calibration device comprises a control unit, wherein the control unit comprises a PLC, a current acquisition module, a frequency acquisition module, a communication module, a data interface terminal and a sensor wiring terminal;
the control output end of the PLC is respectively electrically connected with the control input ends of the pressure reducing valve, the electromagnetic valve, the air pump, the first air electromagnetic valve, the second air electromagnetic valve, the pipeline exhaust device and the air purification device, the signal input end of the PLC is respectively electrically connected with the signal output ends of the flowmeter, the data interface terminal, the sensor wiring terminal, the current acquisition module and the frequency acquisition module, and the PLC is in communication connection with an upper computer through the communication module.
3. The sensor alarm comprehensive verification device of claim 2, wherein: and a gas leakage alarm device is arranged in the gas cylinder cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121326260.XU CN215180047U (en) | 2021-06-15 | 2021-06-15 | Comprehensive calibration device for sensor alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121326260.XU CN215180047U (en) | 2021-06-15 | 2021-06-15 | Comprehensive calibration device for sensor alarm |
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| CN215180047U true CN215180047U (en) | 2021-12-14 |
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| CN202121326260.XU Active CN215180047U (en) | 2021-06-15 | 2021-06-15 | Comprehensive calibration device for sensor alarm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167007A (en) * | 2022-01-07 | 2022-03-11 | 天地（常州）自动化股份有限公司 | Pipeline gas sensor test calibration equipment, control system and control method |
| CN114994254A (en) * | 2022-06-01 | 2022-09-02 | 华北电力大学（保定） | City yardstick bioaerosol monitoring and early warning device |
-
2021
- 2021-06-15 CN CN202121326260.XU patent/CN215180047U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167007A (en) * | 2022-01-07 | 2022-03-11 | 天地（常州）自动化股份有限公司 | Pipeline gas sensor test calibration equipment, control system and control method |
| CN114994254A (en) * | 2022-06-01 | 2022-09-02 | 华北电力大学（保定） | City yardstick bioaerosol monitoring and early warning device |
| CN114994254B (en) * | 2022-06-01 | 2023-07-04 | 华北电力大学（保定） | Urban scale biological aerosol monitoring and early warning device |
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