CN203517325U - Digital display gas automatic switching device - Google Patents
Digital display gas automatic switching device Download PDFInfo
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- CN203517325U CN203517325U CN201320566221.6U CN201320566221U CN203517325U CN 203517325 U CN203517325 U CN 203517325U CN 201320566221 U CN201320566221 U CN 201320566221U CN 203517325 U CN203517325 U CN 203517325U
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- gas
- pressure
- switching device
- gas transmission
- control box
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- 230000005540 biological transmission Effects 0.000 claims abstract 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a gas source automatic switching device applied to gas engineering, which ensures that the gas outlet pressure is in a rated range and the gas is supplied uninterruptedly, in particular to a digital display type gas automatic switching device, which comprises a control box and is characterized in that an ARM single chip microcomputer is arranged in the control box, and the device also comprises a main gas pipe, a gas transmission pipeline I and a gas transmission pipeline II, wherein normally open type electromagnetic valves are respectively arranged on the gas transmission pipeline I and the gas transmission pipeline II; the main air pipe, the air conveying pipeline I and the air conveying pipeline II are communicated through a differential pressure type switching valve, and a pressure transmitter is arranged on the main air pipe; the normally open type electromagnetic valve and the pressure transmitter are connected with the ARM single chip microcomputer; the utility model discloses a have: 1) gas switching and conveying can be realized under the condition of power-on or power-off; 2) the alarm box has the advantages of displaying pressure in real time and monitoring the pressure of an air source.
Description
Technical field
The utility model relates to a kind of source of the gas that is applied in gas engineering and automatically switches, and guarantees out atmospheric pressure in rated range and the device of uninterrupted air feed, specifically a kind of digital display type gas automatic switching device.
Background technique
Air supply system industrial and medical first-class various fields all needs uninterrupted air feed, and institute's supplied gas kind and pressure rating are also different.In order to realize uninterrupted air feed, adopt two sources of the gas more, one of them source of the gas is work source of the gas, and another source of the gas is bailout gas.When the bleed pressure of work is reduced to predetermined value, air feed source of the gas is switched, bailout gas starts air feed, become work source of the gas, and former work source of the gas becomes bailout gas, so repeatedly, realizes the uninterrupted air feed to output terminal.
Model utility content
The utility model provides a kind of and guarantees out atmospheric pressure in rated range and the digital display type gas automatic switching device of uninterrupted air feed.
The concrete technological scheme adopting of the utility model is:
Digital display type gas automatic switching device, comprises control box, it is characterized in that, ARM single-chip microcomputer is installed in control box, also comprises main tracheae, air delivering pipeline I, air delivering pipeline II, in air delivering pipeline I, air delivering pipeline II, is respectively arranged with normally open solenoid valve; Main tracheae, air delivering pipeline I, air delivering pipeline II are communicated with by differential pressure type switching valve, on main tracheae, pressure transmitter are set; Described normally open solenoid valve, pressure transmitter are connected with ARM single-chip microcomputer.
Pressure transmitter detects the atmospheric pressure that of air delivering pipeline I, air delivering pipeline II, main tracheae, pressure signal is converted to the electrical signal of 4-20mA, pass to ARM single-chip microcomputer, calculating and initialize program by ARM single-chip microcomputer judge, intelligent opening or close normally open solenoid valve, maintains out atmospheric pressure in rated range.
During system cut-off, gas now switches to be realized by differential pressure type switching valve, because the normally open solenoid valve of air delivering pipeline I, air delivering pipeline II is all opening state, by differential pressure type switching valve, according to air pressure difference in air delivering pipeline I, air delivering pipeline II, realize the switching of gas.
Wherein, liquid crystal display panel, acousto-optic-electric alarm are installed on described control box shell, are reported to the police and eliminate button, liquid crystal display panel, acousto-optic-electric alarm, the elimination button of reporting to the police are connected with ARM single-chip microcomputer.
Wherein, described pressure transmitter Pressure testing scope is: 0～25MPa, and the overpressure alarm adjustable extent of suction pressure is: 0.2～16.5Mpa; The overpressure alarm adjustable extent that goes out atmospheric pressure is: 0.2～1.2MPa; Specifiedly go out atmospheric pressure adjustable extent and be: 0.03～0.85MPa.
Wherein, the RS-485 or the CAN EBI that are connected with ARM single-chip microcomputer are also installed, to facilitate later expansion and communication on described control box.
Compared with prior art, the utility model has the advantages that:
1) use of normally open solenoid valve, differential pressure type switching valve can realize and under energising or powering-off state, can realize gas switching and carry; 2) use of ARM single-chip microcomputer, pressure transmitter can preset pressure range, and endotracheal pressure is monitored in real time; 3) on warning box, display screen can show in real time to pressure, acousto-optic-electric alarm can report to the police to error situation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Embodiment
As shown in Figure 1, the utility model comprises control box, ARM single-chip microcomputer is installed in control box, also comprise main tracheae, air delivering pipeline I, air delivering pipeline II, in air delivering pipeline I, air delivering pipeline II, be respectively arranged with normally open solenoid valve, main tracheae, air delivering pipeline I, air delivering pipeline II are communicated with by differential pressure type switching valve, on main tracheae, pressure transmitter are set; Described normally open solenoid valve, pressure transmitter are connected with ARM single-chip microcomputer; Liquid crystal display panel, acousto-optic-electric alarm are installed on described control box shell, are reported to the police and eliminate button, liquid crystal display panel, acousto-optic-electric alarm, the elimination button of reporting to the police are connected with ARM single-chip microcomputer; Described pressure transmitter Pressure testing scope is: 0～25MPa; The CAN EBI being connected with ARM single-chip microcomputer is also installed on described control box.
The in the situation that of energising, the pressure of ARM Intelligent Single-Chip Based judgement air delivering pipeline I, air delivering pipeline II, by automatically connecting desired gas loop to the control of normally open solenoid valve; Under powering-off state, owing to adopting normally open solenoid valve, before differential switching valve, air delivering pipeline I, air delivering pipeline II are path, by the adjusting of differential pressure type switching valve, connect the gas circuit of high pressure one side, to realize the switching of gas circuit.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566221.6U CN203517325U (en) | 2013-09-12 | 2013-09-12 | Digital display gas automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566221.6U CN203517325U (en) | 2013-09-12 | 2013-09-12 | Digital display gas automatic switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203517325U true CN203517325U (en) | 2014-04-02 |
Family
ID=50376256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566221.6U Expired - Fee Related CN203517325U (en) | 2013-09-12 | 2013-09-12 | Digital display gas automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203517325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799831A (en) * | 2018-08-03 | 2018-11-13 | 容县康瑞医疗器械有限公司 | Supply monitoring alarm device |
-
2013
- 2013-09-12 CN CN201320566221.6U patent/CN203517325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799831A (en) * | 2018-08-03 | 2018-11-13 | 容县康瑞医疗器械有限公司 | Supply monitoring alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20200912 |