CN219140511U - Instrument gas low pressure interlocking control device for long-chain dibasic acid production - Google Patents
Instrument gas low pressure interlocking control device for long-chain dibasic acid production Download PDFInfo
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- CN219140511U CN219140511U CN202320019957.5U CN202320019957U CN219140511U CN 219140511 U CN219140511 U CN 219140511U CN 202320019957 U CN202320019957 U CN 202320019957U CN 219140511 U CN219140511 U CN 219140511U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to an instrument gas supply system in the long-chain binary acid industry, in particular to an instrument gas low-pressure interlocking control device for long-chain binary acid production. The device comprises a standby air compressor (1), an instrument air compressor (2), a control instrument (5) and a pressure sensor (6); the utility model discloses a gas control system for the instrument, including instrument gas air compressor machine (2), pressure sensor (6), control instrument (5), instrument gas main valve (3) are provided with on the instrument gas main pipe to instrument gas air compressor machine (2), reserve air compressor machine (1) with be provided with diverter valve (4) between instrument gas air compressor machine (2), pressure sensor (6) real-time supervision instrument gas main pipe pressure to give control instrument (5) with signal transmission, control instrument (5) are according to the pressure control that detects instrument gas main valve (3) and the switch of diverter valve (4). The utility model avoids the production safety accident caused by out-of-control production control because of insufficient air pressure of the instrument due to the failure of the air supply system.
Description
Technical Field
The utility model relates to an air supply system in the long-chain binary acid industry, in particular to an instrument air low-pressure interlocking control device for producing long-chain binary acid.
Background
In modern industrial production, the automatic unmanned direction is increasingly developed, the production and manufacturing industry of long-chain dibasic acid is no exception, a large number of pneumatic valves are used for controlling the process flow in the production control process, the power source of a pneumatic actuator is instrument gas, once the pressure of the instrument gas is reduced or even eliminated, the pneumatic valves are invalid, the production is out of control, production accidents are caused, and serious property loss and safety accidents are caused for companies and personnel; it becomes important how to ensure a continuous and stable supply of instrument gas during production.
The existing instrument air system is characterized in that high-pressure air is generated through a screw air compressor and then is sent to an air supply pipe network for production, once the air compressor is damaged or an air supply main pipe leaks air, the air supply main pipe is cut off, the air consumption of a workshop is reduced, the instrument air pressure in the pipe network is ensured as much as possible, and meanwhile, the instrument air system is gripped for emergency repair; therefore, the maintenance is very inconvenient, the continuity of the process production is also interrupted, and no small loss is brought to the company.
Disclosure of Invention
The utility model provides an instrument gas low-pressure interlocking control device for producing long-chain binary acid, which can effectively ensure the gas supply pressure of instrument gas and maintain the normal operation of an automatic pneumatic actuator, thereby ensuring the safe and effective operation of industrial production.
In order to achieve the above object, the present utility model provides the following technical solutions: the instrument gas low-pressure interlocking control device for producing the long-chain dibasic acid comprises a standby air compressor, an instrument gas air compressor, a control instrument and a pressure sensor; the instrument air compressor supplies air through a pipeline, an instrument air main valve is arranged on an instrument air main pipe, a switching valve is arranged between the standby air compressor and the instrument air compressor, the pressure sensor monitors the pressure of the instrument air main pipe in real time and transmits signals to a control instrument, and the control instrument controls the instrument air main valve and the switching valve to be opened and closed according to the detected pressure.
Preferably, when the pressure of the gas main pipe of the pressure sensor detection instrument is more than 0.5MPa, a signal is transmitted to the control instrument, the control instrument controls the gas main valve of the instrument to be opened, the switching valve is closed, and the two gas paths respectively work and supply gas.
Preferably, when the pressure of the gas main pipe of the pressure sensor detection instrument is lower than 0.5MPa, a signal is transmitted to the control instrument, the control instrument controls the gas main valve of the instrument to be closed, and the switching valve is opened, so that the standby air compressor can be supplied to the gas pipe network of the instrument for temporary use.
Preferably, the control instrument further comprises an audible and visual alarm, wherein a normally open output point K1 of the control instrument is closed, a coil of the contactor KM is electrified, the normally open contact KM is closed, and the audible and visual alarm works to send out audible and visual alarm to remind a worker to check and maintain.
Preferably, the standby air compressor is a standby machine of an instrument air compressor or an air compressor supplied by other systems.
Preferably, the instrument gas main pipe is connected with other system gas supply main pipes through a pipeline, and the pipeline is provided with an adjusting valve.
Preferably, the input signal end of the control instrument is electrically connected with the pressure sensor, and the output end of the control instrument is electrically connected with the instrument gas main valve, the switching valve and the audible-visual annunciator respectively.
Preferably, when the control instrument is electrically connected with the audible and visual alarm, a manual reset function can be additionally arranged; only when the fault is removed and the pressure returns, the audible and visual alarm is turned off when the manual reset is carried out. If the pressure is recovered after being reduced temporarily, the audible and visual alarm is still in an alarm state at the moment, so that a worker is reminded of checking whether the dew point or hidden danger exists, and if the hidden danger is eliminated, the audible and visual alarm is extinguished after manual reset.
Compared with an instrument gas system without the device, the device has the beneficial effects that:
1) The automatic switching device can ensure the air supply pressure of the instrument air, and can automatically switch the standby device to replace once the air supply pressure of the instrument is too low, and send out an alarm to remind workers to carry out emergency repair and treatment.
2) The device automatically monitors pressure fluctuation, does not need manual participation, and works more reliably and labor-saving.
3) The continuous and controllable production is ensured, and the safety risk is reduced.
Drawings
FIG. 1 is a schematic diagram of an instrument gas low-pressure interlocking control device for producing long-chain dibasic acid;
fig. 2 is an electrical schematic diagram of the manual reset function.
Reference numerals: 1-standby air compressor, 2-instrument air compressor, 3-instrument air main valve, 4-switching valve, 5-control instrument, 6-pressure sensor, 7-audible and visual alarm, K0-reset button, K1-control instrument normally open output point and KM-contactor.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1-2.
As shown in fig. 1, the instrument gas low-pressure interlocking control device for producing long-chain dibasic acid in the embodiment comprises a standby air compressor 1, an instrument gas air compressor 2, a pressure sensor 6, a control instrument 5 and an instrument gas main valve 3; the instrument air compressor 2 supplies air through a pipeline, an instrument air main valve 3 is arranged on an instrument air main pipe, a switching valve 4 is arranged between the standby air compressor 1 and the instrument air compressor 2, the pressure sensor 6 monitors the pressure of the instrument air main pipe in real time and transmits signals to a control instrument 5, and the control instrument 5 controls the opening and closing of the instrument air main valve 3 and the switching valve 4 according to the detected pressure. The backup air compressor 1 is, for example, a high-pressure air compressor.
The air supply pressure of the standby air compressor 1 and the instrument air compressor 2 is between 0.5MPa and 0.7 MPa; the pressure sensor 6 monitors the pressure of the gas main pipe of the instrument in real time and transmits signals to the control instrument 5.
When the pressure sensor 6 detects that the pressure of the main gas pipe of the instrument is above 0.5MPa, a signal is transmitted to the control instrument 5, the control instrument 5 controls the main gas valve 3 of the instrument to be smooth, the switching valve 4 is closed, and the two gas paths respectively work and supply gas.
When the pressure sensor 6 detects that the pressure of the instrument gas main pipe is lower than 0.5MPa, a signal is transmitted to the control instrument 5, the control instrument 5 controls the instrument gas main valve 3 to be closed, the switching valve 4 is opened, the high-pressure gas 1 can be supplied to the instrument gas pipe network for temporary use, meanwhile, the normally open output point K1 of the control instrument 5 is closed, as shown in fig. 2, the contactor KM coil is electrified, the normally open contact KM is closed, and the audible and visual alarm 7 works to send out audible and visual alarm to remind a worker to check and maintain.
After the maintenance and inspection of the staff are finished, the pressure sensor 6 detects that the air pressure of the instrument recovers to more than 0.5MPa, a sensor signal is transmitted to the control instrument 5, the control instrument 5 controls the instrument air main valve 3 to be smooth, the switching valve 4 is closed, the high-pressure air 1 and the instrument air 2 recover to work respectively, meanwhile, the normally open output point K1 of the control instrument 5 is disconnected, as shown in fig. 2, the manual reset button K0 is pressed and then loosened, the coil of the contactor KM is powered off, the normally open contact KM is disconnected, the audible-visual annunciator 7 is extinguished, and the manual reset is successful.
The utility model provides an instrument air low-pressure interlocking control device, which solves the problem that the air pressure of an instrument is too low due to the fault of an air supply system, so that the process control is out of control. The utility model effectively controls the stability of the air supply pressure of the instrument air, ensures the normal operation of an automatic device and promotes the safe and effective continuous production; the device automatically monitors and controls the pressure without manual participation, and has high safety and reliability.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (8)
1. The instrument air low-pressure interlocking control device for producing the long-chain dibasic acid is characterized by comprising a standby air compressor (1), an instrument air compressor (2), a control instrument (5) and a pressure sensor (6); the utility model discloses a gas control system for the instrument, including instrument gas air compressor machine (2), pressure sensor (6), control instrument (5), instrument gas main valve (3) are provided with on the instrument gas main pipe to instrument gas air compressor machine (2), reserve air compressor machine (1) with be provided with diverter valve (4) between instrument gas air compressor machine (2), pressure sensor (6) real-time supervision instrument gas main pipe pressure to give control instrument (5) with signal transmission, control instrument (5) are according to the pressure control that detects instrument gas main valve (3) and the switch of diverter valve (4).
2. The instrument gas low-pressure interlocking control device according to claim 1, wherein when the pressure of the instrument gas main pipe detected by the pressure sensor (6) is more than 0.5MPa, a signal is transmitted to the control instrument (5), the control instrument (5) controls the instrument gas main valve (3) to be opened, the switching valve (4) is closed, and the two gas paths respectively work and supply gas.
3. The instrument gas low-pressure interlocking control device according to claim 1, wherein when the pressure of the instrument gas main pipe detected by the pressure sensor (6) is lower than 0.5MPa, a signal is transmitted to the control instrument (5), and the control instrument (5) controls the instrument gas main valve (3) to be closed and opens the switching valve (4), so that the standby air compressor (1) can be supplied to the instrument gas pipe network for temporary use.
4. The instrument air low-voltage interlocking control device according to claim 3, further comprising an audible and visual alarm (7), wherein a normally open output point (K1) of the control instrument (5) is closed, a contactor (KM) coil is electrified, a normally open contact (KM) is closed, and the audible and visual alarm (7) works to send out audible and visual alarm to remind a worker to check and repair.
5. The instrument air low-pressure interlocking control device according to claim 1, wherein the standby air compressor (1) is an air compressor for supplying air to a standby machine or other systems of the instrument air compressor.
6. The instrument gas low-pressure interlocking control device according to claim 1, wherein a pipeline is connected between the instrument gas main pipe and other system gas supply main pipes, and a regulating valve is arranged on the pipeline.
7. The instrument air low-pressure interlocking control device according to claim 4, wherein an input signal end of the control instrument (5) is electrically connected with the pressure sensor (6), and an output end of the control instrument is electrically connected with the instrument air main valve (3), the switching valve (4) and the audible-visual alarm (7) respectively.
8. The instrument air low-pressure interlocking control device according to claim 1, wherein a manual reset function is additionally arranged when the control instrument (5) is electrically connected with the audible and visual alarm (7); only when the fault is removed and the pressure returns, the audible and visual alarm (7) is turned off when the manual reset is carried out; if the pressure is recovered after being reduced temporarily, the audible and visual annunciator (7) is still in an alarm state at the moment, the staff is reminded to check whether the dew point or hidden danger exists, and if the hidden danger is eliminated, the audible and visual annunciator (7) is extinguished after manual reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320019957.5U CN219140511U (en) | 2023-01-05 | 2023-01-05 | Instrument gas low pressure interlocking control device for long-chain dibasic acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320019957.5U CN219140511U (en) | 2023-01-05 | 2023-01-05 | Instrument gas low pressure interlocking control device for long-chain dibasic acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219140511U true CN219140511U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320019957.5U Active CN219140511U (en) | 2023-01-05 | 2023-01-05 | Instrument gas low pressure interlocking control device for long-chain dibasic acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219140511U (en) |
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2023
- 2023-01-05 CN CN202320019957.5U patent/CN219140511U/en active Active
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