CN203216883U - High-pressure nitrogen dew point detecting device - Google Patents
High-pressure nitrogen dew point detecting device Download PDFInfo
- Publication number
- CN203216883U CN203216883U CN 201320233680 CN201320233680U CN203216883U CN 203216883 U CN203216883 U CN 203216883U CN 201320233680 CN201320233680 CN 201320233680 CN 201320233680 U CN201320233680 U CN 201320233680U CN 203216883 U CN203216883 U CN 203216883U
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- China
- Prior art keywords
- dew point
- microprocessor
- pressure nitrogen
- contact
- knob
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- Expired - Fee Related
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Abstract
A high-pressure nitrogen dew point detecting device comprises a reducing valve, a fast connector, a hose, a dew point sensor, a shell, a battery, a microprocessor, an LED display, a power button, a calibration button and a detecting button. The dew point sensor is an aluminum oxide resistance-capacitance sensor. By the high-pressure nitrogen dew point detecting device, fast detection of high-pressure nitrogen dew point can be achieved, and automatic correction of dry-end shift of the dew point sensor can be completed to achieve an automatic calibration function. The high-pressure nitrogen dew point detecting device has the advantages that by the reducing valve, safety of high-pressure nitrogen dew point detecting is guaranteed, impact of the high-pressure nitrogen on the dew point sensor is reduced, parts such as the reducing valve, the hose, the dew point sensor are easy to mount and demount, and the whole dew point detecting device is fast in response, simple in structure, low in mass, and convenient to carry.
Description
Technical field
The utility model relates to a kind of dew point pick-up unit, specifically relates to a kind of high pressure nitrogen dew point pick-up unit.
Background technology
High pressure nitrogen can use as cold-producing medium, and the high pressure nitrogen that uses as cold-producing medium requires its dew point low, otherwise high pressure nitrogen its contained moisture when throttling can freeze with the line clogging of refrigeration system.Therefore, need a kind of simple in structure, response speed is fast, quality is little, be easy to carry, be applicable to the pick-up unit that the high pressure nitrogen dew point is measured.
The utility model content
The purpose of this utility model be to provide one simple in structure, response speed is fast, quality is little, be easy to carry, be mainly used in the high pressure nitrogen dew point pick-up unit that the high pressure nitrogen dew point is measured.
The utility model high pressure nitrogen dew point pick-up unit is made up of reduction valve, rapid-acting coupling, flexible pipe, dew point transducer, housing, battery, microprocessor, light-emitting diode display, power knob, calibration knob and test button; Microprocessor is subjected to the control of calibration knob and test button, receive the electric signal that imports into of dew point transducer, electric signal is passed through to amplify, change, calculate corresponding dew point output, the output terminal of microprocessor is connected with light-emitting diode display, microprocessor is fixedly mounted in the housing, and contacts with signal output contact, calibration knob contact, the test button contact of dew point transducer by the contact; Light-emitting diode display, power knob, calibration knob, test button are embedded on the housing; Light-emitting diode display is connected with microprocessor by line, and the result of calculation of microprocessor is shown; The effect of power knob is the connecting and disconnecting power supplys; The effect of calibration knob is the calibration function that starts the dew point pick-up unit, and the effect of test button is the measuring ability that starts the dew point pick-up unit; Reduction valve is used for reducing the pressure of high pressure nitrogen, the protection dew point transducer is not subjected to the impact of high pressure nitrogen, and four joints are arranged on the reduction valve, and wherein two joints connect two tensimeters, one in two other joint connects the high pressure nitrogen cylinder valve, and another is connected with flexible pipe by rapid-acting coupling; Dew point transducer is the aluminium oxide resistive-capacitive sensor, be used for detecting the dew point of nitrogen, the sample gas import of dew point transducer is connected with flexible pipe by rapid-acting coupling, the other end is inserted in the housing of dew point pick-up unit, the electric signal output contact of dew point transducer contacts with the electric signal input contact of microprocessor, and there is the outlet of sample gas the side of dew point transducer; Battery is lithium battery, is used for to the pick-up unit power supply, and two output port of power source of battery contact with the power port of microprocessor, and are stuck in the housing.
The principle of work of the utility model high pressure nitrogen dew point device is: when pressing power knob and pressing test button, microprocessor switches to sample gas trace routine, sample gas is after the reduction valve decompression, enter dew point transducer from flexible pipe, sample gas after detected is discharged through the outlet throttling pipe that passes dew point sensor side, microprocessor receives the electric signal that dew point transducer imports into, electric signal is passed through to amplify, change, calculate corresponding dew point, light-emitting diode display shows the microprocessor result calculated at display; When pressing power knob and pressing test button, microprocessor switches to the dew point transducer calibration procedure, standard gas is after the reduction valve decompression, enter dew point transducer from flexible pipe, standard gas after detected is discharged through the outlet throttling pipe of biography dew point sensor side, and the electric signal that microprocessor reception dew point transducer imports into passes through electric signal to amplify, changes, calibrates automatically, finish the automatic correction to the dry end mark drift of dew point transducer, and result is shown at light-emitting diode display.
Advantage of the present utility model is, pass through reduction valve, solved the safety issue that the gases at high pressure dew point is measured, having reduced high pressure nitrogen impacts dew point transducer, response speed is fast, parts such as reduction valve, flexible pipe, dew point transducer are assembling and dismounting easily, and whole dew point pick-up unit is simple in structure, quality is little, be easy to carry.
Description of drawings
Fig. 1 is the structural representation in the utility model front.
Fig. 2 is the utility model enclosure interior structural representation.
In Fig. 1, Fig. 2: 1, reduction valve; 2, rapid-acting coupling; 3, flexible pipe; 4, rapid-acting coupling; 5, dew point transducer; 6, housing; 7, microprocessor; 8, light-emitting diode display; 9, battery; 10, power knob; 11, calibration knob; 12, test button.
Embodiment
Below in conjunction with the drawings and the specific embodiments enforcement of the present utility model is described further:
As shown in Figure 1, the utility model high pressure nitrogen dew point pick-up unit is made up of reduction valve 1, rapid-acting coupling 2, flexible pipe 3, rapid-acting coupling 4, dew point transducer 5, housing 6, microprocessor 7, light-emitting diode display 8, battery 9, power knob 10, calibration knob 11, test button 12; Four joints are arranged on the reduction valve 1, and wherein two joints connect two tensimeters, and one in two other joint connects the high pressure nitrogen cylinder valve, and another is connected with flexible pipe 3 by rapid-acting coupling 2; The sample gas import of dew point transducer 5 is connected with flexible pipe 3 by rapid-acting coupling 4, the other end is inserted in the housing 6 of dew point pick-up unit, the electric signal output contact of dew point transducer 5 contacts with the electric signal input contact of microprocessor 7, and there is sample gas outlet throttling pipe the side of dew point transducer 5; Light-emitting diode display 8 is connected by the output terminal of line with microprocessor 7, microprocessor 7 is fixedly mounted in the housing, and contact with signal output contact, calibration knob 11 contacts, test button 12 contacts of dew point transducer 5 by the contact, light-emitting diode display 8, power knob 10, calibration knob 11, test button 12 are embedded on the housing 6, two output port of power source of battery 9 contact with the power port of microprocessor 7, and are stuck in the housing 6.
Principle of work is:
One, dew point detects:
Two, dew point transducer calibration:
Claims (1)
1. a high pressure nitrogen dew point pick-up unit is made up of reduction valve, rapid-acting coupling, flexible pipe, dew point transducer, housing, battery, microprocessor, light-emitting diode display, power knob, calibration knob and test button; It is characterized in that: microprocessor is subjected to the control of calibration knob and test button, receive the electric signal that imports into of dew point transducer, electric signal is passed through to amplify, change, calculate corresponding dew point output, the output terminal of microprocessor is connected with light-emitting diode display, microprocessor is fixedly mounted in the housing, and contacts with signal output contact, calibration knob contact, the test button contact of dew point transducer by the contact; Light-emitting diode display, power knob, calibration knob, test button are embedded on the housing; Light-emitting diode display is connected with microprocessor by line, and the result of calculation of microprocessor is shown; The effect of power knob is the connecting and disconnecting power supplys; The effect of calibration knob is the calibration function that starts the dew point pick-up unit, and the effect of test button is the measuring ability that starts the dew point pick-up unit; Reduction valve is used for reducing the pressure of high pressure nitrogen, the protection dew point transducer is not subjected to the impact of high pressure nitrogen, and four joints are arranged on the reduction valve, and wherein two joints connect two tensimeters, one in two other joint connects the high pressure nitrogen cylinder valve, and another is connected with flexible pipe by rapid-acting coupling; Dew point transducer is the aluminium oxide resistive-capacitive sensor, be used for detecting the dew point of nitrogen, the sample gas import of dew point transducer is connected with flexible pipe by rapid-acting coupling, the other end is inserted in the housing of dew point pick-up unit, the electric signal output contact of dew point transducer contacts with the electric signal input contact of microprocessor, and there is the outlet of sample gas the side of dew point transducer; Battery is lithium battery, is used for to the pick-up unit power supply, and two output port of power source of battery contact with the power port of microprocessor, and are stuck in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233680 CN203216883U (en) | 2013-04-16 | 2013-04-16 | High-pressure nitrogen dew point detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233680 CN203216883U (en) | 2013-04-16 | 2013-04-16 | High-pressure nitrogen dew point detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216883U true CN203216883U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320233680 Expired - Fee Related CN203216883U (en) | 2013-04-16 | 2013-04-16 | High-pressure nitrogen dew point detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360029A (en) * | 2014-12-11 | 2015-02-18 | 哈尔滨东方报警设备开发有限公司 | Structure capable of directly calibrating portable gas detector |
| CN106501462A (en) * | 2016-12-15 | 2017-03-15 | 河南华瑞高新材料科技股份有限公司 | A kind of measurement apparatus of detection bottled gas moisture |
| CN111551586A (en) * | 2020-06-19 | 2020-08-18 | 广州能源检测研究院 | Compressed air pressure dew point detection device and method |
-
2013
- 2013-04-16 CN CN 201320233680 patent/CN203216883U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360029A (en) * | 2014-12-11 | 2015-02-18 | 哈尔滨东方报警设备开发有限公司 | Structure capable of directly calibrating portable gas detector |
| CN106501462A (en) * | 2016-12-15 | 2017-03-15 | 河南华瑞高新材料科技股份有限公司 | A kind of measurement apparatus of detection bottled gas moisture |
| CN111551586A (en) * | 2020-06-19 | 2020-08-18 | 广州能源检测研究院 | Compressed air pressure dew point detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140416 |