CN220727944U - Compressed air control system for continuous air supply - Google Patents
Compressed air control system for continuous air supply Download PDFInfo
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- CN220727944U CN220727944U CN202322508312.0U CN202322508312U CN220727944U CN 220727944 U CN220727944 U CN 220727944U CN 202322508312 U CN202322508312 U CN 202322508312U CN 220727944 U CN220727944 U CN 220727944U
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 6
- 230000001954 sterilising effect Effects 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 9
- 238000007605 air drying Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The application provides a compressed air control system for continuous air supply, which comprises a plurality of air compressors electrically connected with a control cabinet, wherein the air outlet of each air compressor is connected with the air inlet of a buffer tank through a pipeline, the air outlet of the buffer tank is connected with a plurality of drier absorbers through a pipeline, the air outlet of each drier absorber is connected to two air storage tanks through a pipeline, a pressure sensor is arranged on each air storage tank, and the air outlet pipelines of the two air storage tanks are summarized to an air outlet main pipe; the dryer and the pressure sensor are electrically connected with the control cabinet. The system has a plurality of combined air supply modes, and can provide air with different air pressures, different purities and bacteria or not so as to meet different air consumption requirements. Meanwhile, when one device in one link fails, the other standby devices in the link can be directly started, so that the continuity of air supply in single failure is ensured.
Description
Technical Field
The utility model relates to the technical field of medical compressed air, in particular to a compressed air control system for continuously supplying air.
Background
The medical compressed air system is an important component of a centralized air supply system of a modern hospital, is suitable for new construction, expansion and reconstruction engineering of the hospital, and is mainly used for providing aerodynamic force for medical equipment in aspects of an intensive care unit, a rescue unit, an operating room, a supply unit, dentistry, physiotherapy, rehabilitation and the like and providing medical gas such as oxygen or mixed gas of oxygen and air for patients.
The medical compressed air system mainly comprises an air compressor, a dryer and an air storage tank, wherein the air compressor, the dryer and the air storage tank are connected in series to form a single air supply system for hospitals. However, the system is fixed, so that medical equipment cannot work, and medical accidents can be caused. Therefore, some hospitals use dual air supply systems, i.e., one air supply system for air supply and the other air supply system for standby.
However, if a certain air compressor, a dryer or an air storage tank fails in the double air supply system, the corresponding air supply system needs to be integrally closed, a standby air supply system is started, then staff needs to conduct one-to-one investigation, and a failed device is determined, so that time and labor are wasted. In addition, if different devices in the two air supply systems fail, the compressed air system of the hospital is paralyzed, and medical accidents are caused.
Disclosure of Invention
In order to solve the technical problems in the background art, the utility model provides a compressed air control system for continuously supplying air.
The technical scheme of the utility model is as follows:
the compressed air control system for continuous air supply comprises a plurality of air compressors electrically connected with a control cabinet, wherein an air outlet of each air compressor is connected with an air inlet of a buffer tank through a pipeline, the air outlet of the buffer tank is connected with a plurality of drier absorbers through a pipeline, the air outlet of each drier absorber is connected to two air storage tanks through a pipeline, a pressure sensor is arranged on each air storage tank, and air outlet pipelines of the two air storage tanks are summarized to an air outlet main pipe; wherein, the dryer and the pressure sensor are electrically connected with the control cabinet.
In this application, a plurality of air compressors and a plurality of drier can carry out the supporting use of different combinations according to specific user demand and carry out the air feed. For example: only one air compressor works, and a plurality of suction dryers can be arranged behind the air compressor to dry air, so that the air drying efficiency is improved, and the air compressor can be used one to one, one to one or many to many, and can be used according to the use requirement, and can supply air according to the requirement.
In addition, once one of the plurality of air compressors or the plurality of suction dryers fails, the normal use of other devices is not affected, the continuous supply of compressed air can be ensured, and the occurrence of medical accidents is avoided.
The number of air compressors is preferably two, one working and the other as a backup, and when one fails, the other can be started. In addition, when the air supply quantity needs to be increased or the pipeline has an air leakage fault to reduce the pressure of compressed air, the two air compressors can be started to work simultaneously.
The number of suction machines is preferably two, one working and the other as a backup, the other being started when one fails. In addition, when the air humidity is higher or the drying efficiency needs to be improved, two air compressors can be started to work simultaneously.
In the scheme, when one air compressor fails, the other air compressor can be directly started to be matched with the working suction drier to continue air supply; similarly, when one suction drier fails, the other suction drier can be directly started to supply air in cooperation with the working air compressor.
In order to meet the air consumption requirement of purer air, an air filter can be arranged on a pipeline between the drier and the air storage tank to purify the compressed air.
In addition, the pipelines at the two sides of the air inlet and the air outlet of the air filter are communicated through a parallel pipeline, and a one-way control valve is arranged on the parallel pipeline. When pure air is not needed, the parallel pipeline can be directly opened, so that compressed air directly passes through the parallel pipeline, and the loss of the air filter is reduced.
Similarly, a one-way control valve and a degerming filter connected with the one-way control valve in parallel are arranged on the air outlet header pipe. When sterile air is needed, a one-way control valve on the air outlet main pipe is closed, and a pipeline connected in parallel is opened, so that the air is sterilized through a sterilizing filter; otherwise, when no aseptic treatment is required, the parallel pipeline is closed, and the one-way control valve on the air outlet main pipe is opened, so that the compressed air directly passes through.
In order to facilitate the control of the opening and closing of the pipeline and the starting and the replacement of the devices, the pipelines on both sides of the air inlet and the air outlet of the air compressor, the buffer tank, the dryer, the air filter, the air storage tank and the degerming filter are respectively provided with a one-way control valve, so that the backflow of compressed air can be avoided, and fault equipment and the air supply pipeline can be isolated during the replacement and the maintenance without influencing the normal air supply. When a certain device is not needed, the one-way control valve at the air inlet side of the device can be directly closed.
The control cabinet comprises a PLC (programmable logic controller) which is electrically connected with the air compressor, the dryer and the pressure sensor and used for controlling the starting and the closing of the air compressor and the dryer, collecting fault information of the air compressor and the dryer and AI information of the pressure sensor, determining whether faults occur or not by the PLC through internal operation according to the fault information and starting a preparation scheme, such as starting a standby device, starting two air compressors to ensure air pressure and the like, so as to ensure continuous air supply.
In addition, the control cabinet further comprises a display unit which is connected with the PLC and used for displaying a device with faults, so that workers can quickly know where the faults occur, and repair or replacement can be timely performed, and continuous use of the compressed air control system is guaranteed.
In addition, the control cabinet also comprises an audible and visual alarm unit which is connected with the PLC. When a fault occurs, the PLC controls the audible and visual alarm unit to send alarm sound and alarm light to remind a worker, so that the worker can learn that the fault occurs in time and needs to repair or replace in time, and the continuous use of the compressed air control system is ensured.
The compressed air control system for continuous air supply provided by the utility model has a plurality of combined air supply modes, and can provide air with different air pressures, different purities and bacteria or not so as to meet different air use requirements. Meanwhile, when one device in one link fails, the other standby devices in the link can be directly started, so that the continuity of air supply is ensured.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of a compressed air control system;
FIG. 2 is a schematic diagram of electrical connections of a compressed air control system.
The components represented by the reference numerals in the figures are:
1. a control cabinet; 2. an air compressor; 3. a buffer tank; 4. a suction drier; 5. a gas storage tank; 6. a pressure sensor; 7. a gas outlet main pipe; 8. an air filter; 9. a sterilizing filter; 10. an electrical distribution box.
Detailed Description
As shown in fig. 1 and 2, an embodiment of the present utility model provides a compressed air control system for continuous air supply, which includes a control cabinet 1, an air compressor 2, a buffer tank 3, a dryer 4, an air tank 5, and a pressure sensor 6.
In practical application, the air compressors 2, the suction dryers 4 and the pressure sensors 6 are relatively vulnerable parts, and the probability of faults is relatively high, so that the compressed air control system specifically comprises a plurality of air compressors 2 electrically connected with a control cabinet 1, the air outlet of each air compressor 2 is connected with the air inlet of a buffer tank 3 through a pipeline, the air outlet of the buffer tank 3 is connected with a plurality of suction dryers 4 through a pipeline, the air outlet of each suction dryer 4 is connected to two air storage tanks 5 through a pipeline, the pressure sensors 6 are arranged on the air storage tanks 5, and the air outlet pipelines of the two air storage tanks 5 are summarized to an air outlet manifold 7; the suction drier 4 and the pressure sensor 6 are electrically connected with the control cabinet 1, and the control cabinet 1 is electrically connected with the distribution box 10.
In this application, a plurality of air compressors 2 and a plurality of suction cleaners 4 can be used in combination according to specific use requirements to supply air. For example: only one air compressor 2 works, and a plurality of suction dryers 4 can be arranged behind the air compressor to dry air, so that the air drying efficiency is improved, and the air compressor can be used one by one, one by one or many by many, and can be particularly selected according to the use requirement and can supply air according to the requirement.
In addition, once one of the plurality of air compressors 2 or the plurality of suction dryers 4 fails, the normal use of other devices is not affected, the continuous supply of compressed air can be ensured, and the occurrence of medical accidents is avoided.
In this embodiment, the number of air compressors 2 is preferably two, one is operated and the other is used as a backup, and when one fails, the other can be started. In addition, when the air supply amount needs to be increased or the pipeline has an air leakage fault to reduce the pressure of the compressed air, the two air compressors 2 can be started to work simultaneously.
In this embodiment, the number of the suction machines 4 is also preferably two, one for operation and the other for standby, and when one fails, the other can be started. In addition, when the air humidity is high or the drying efficiency needs to be improved, the two air compressors 2 can be started to work simultaneously.
When one air compressor 2 fails, the other air compressor 2 can be directly started to be matched with the working suction drier 4 to continue air supply; similarly, when one suction drier 4 fails, the other suction drier 4 can be directly started to supply air in cooperation with the working air compressor 2, so that continuous air supply is ensured.
In order to facilitate the opening and closing of the control pipeline and the starting or not and the replacement of each device, the pipelines on the two sides of the air inlet and outlet of the air compressor 2, the buffer tank 3, the suction drier 4 and the air storage tank 5 are respectively provided with a one-way control valve, so that the backflow of compressed air can be avoided, and fault equipment and the air supply pipeline can be isolated during the replacement and maintenance without influencing the normal air supply.
To accommodate the air demand for cleaner air, an air filter 8 may be provided in the line between the extractor 4 and the air reservoir 5 to clean the compressed air.
In addition, the two side pipelines of the air inlet and the air outlet of the air filter 8 are communicated through a parallel pipeline, a one-way control valve is arranged on the parallel pipeline, and the one-way control valve is arranged between the parallel pipeline and the air inlet and the air outlet of the air filter 8 to control whether the air filter 8 is used or not. When pure air is not needed, the parallel pipeline can be directly opened, and the one-way control valves at the two sides of the air filter 8 are closed, so that compressed air directly passes through the parallel pipeline, and the loss of the air filter 8 is reduced.
Similarly, a one-way control valve and a sterilizing filter 9 connected in parallel with the one-way control valve are arranged on the air outlet header pipe 7, and the two sides of the air inlet and the air outlet of the sterilizing filter 9 are provided with one-way control valves to control whether the sterilizing filter 9 is used or not. When the sterile air is needed, the one-way control valve on the air outlet header pipe 7 is closed, and the one-way control valves on the two sides of the sterilizing filter 9 are opened, so that the air passes through the sterilizing filter 9 for sterilization.
In this embodiment, the control cabinet 1 includes a PLC, which is electrically connected to the air compressor 2, the suction dryer 4 and the pressure sensor 6, and is used to control the start and stop of the air compressor 2 and the suction dryer 4, collect fault information of the air compressor 2 and the suction dryer 4, and Analog Input (AI) information of the pressure sensor 6, and the PLC determines whether a fault occurs according to these information through internal operation, and starts a preparation scheme, for example, starts a standby device, starts two air compressors 2 to ensure air pressure, so as to ensure continuous air supply.
Specifically, the PLC collects a dry junction fault signal, i.e., a switching signal, output by the air compressor 2 and the suction dryer 4, to determine whether the air compressor 2 and the suction dryer 4 have a fault.
When the PLC detects that the fault signal of the air compressor 2 is closed, the air compressor 2 can be obtained to be out of order, and the other air compressor 2 is started to work so as to ensure that compressed air can still be continuously supplied.
When the PLC detects that the fault signal of the suction drier 4 is closed, the suction drier 4 is out of order, and the other suction drier 4 is started to work so as to ensure that the compressed air can still be continuously supplied.
For the pressure sensor 6, the plc acquires AI signals of the pressure sensor 6. In this embodiment, the measuring range of the pressure sensor 6 is usually 0-1.6 Mpa when detecting the gas pressure in the gas storage tank 5, when the PLC detects that the pressure value obtained by the internal operation of the PLC through the AI signal is smaller than 0Mpa or larger than 1.6Mpa, the pressure sensor 6 is judged to be faulty, and the PLC uses the gas pressure value detected by the other pressure sensor 6 as a reference to perform system control.
When the PLC detects that the gas pressure values detected by the two pressure sensors 6 are lower than the normal operation pressure value, the leakage point and the leakage fault of the gas outlet header pipe 7 can be judged, and the PLC controls the two air compressors 2 and the two suction dryers 4 to operate simultaneously so as to improve the air pressure and ensure that the using end obtains the compressed air with the normal pressure value.
In this application, each air compressor machine 2, each drier 4 and each pressure sensor 6 of compressed air control system all are the independent detection, only need keep apart the device air supply line with the device when breaking down maintain or change can, do not influence other devices' normal use, have improved the ability of continuous air feed when single trouble.
In addition, the control cabinet 1 further comprises a display unit which is connected with the PLC and used for displaying which device has faults, so that a worker can quickly know where the faults occur, and the worker can maintain or replace the devices in time, thereby ensuring the continuous use of the compressed air control system.
In addition, the control cabinet 1 further comprises an audible and visual alarm unit which is connected with the PLC. When a fault occurs, the PLC controls the audible and visual alarm unit to send alarm sound and alarm light to remind a worker, so that the worker can learn that the fault occurs in time and needs to repair or replace in time, and the continuous use of the compressed air control system is ensured.
The compressed air control system for continuous air supply provided by the utility model has a plurality of combined air supply modes, and can provide air with different air pressures, different purities and bacteria or not so as to meet different air use requirements. Meanwhile, when one device in one link fails, the other standby devices in the link can be directly started, so that the continuity of air supply in single failure is ensured.
Claims (10)
1. The compressed air control system for continuous air supply is characterized by comprising a plurality of air compressors (2) electrically connected with a control cabinet (1), wherein the air outlet of each air compressor (2) is connected with the air inlet of a buffer tank (3) through a pipeline, the air outlet of the buffer tank (3) is connected with a plurality of drier absorbers (4) through a pipeline, the air outlet of each drier absorber (4) is connected to two air storage tanks (5) through a pipeline, a pressure sensor (6) is arranged on each air storage tank (5), and the air outlet pipelines of the two air storage tanks (5) are summarized to an air outlet main pipe (7);
the suction drier (4) and the pressure sensor (6) are electrically connected with the control cabinet (1).
2. A continuously supplied compressed air control system according to claim 1, characterized in that the number of air compressors (2) is two.
3. A continuously supplied compressed air control system according to claim 2, characterized in that the number of suction machines (4) is two.
4. A continuously supplied compressed air control system according to claim 3, characterized in that an air filter (8) is arranged in the line between the suction machine (4) and the air reservoir (5).
5. A compressed air control system for continuous air supply according to claim 4, wherein the air inlet and outlet side pipes of the air filter (8) are connected by a parallel pipe, and the parallel pipe is provided with a one-way control valve.
6. A compressed air control system for continuous gas supply according to claim 5, characterized in that the gas outlet manifold (7) is provided with a one-way control valve and a sterilizing filter (9) connected in parallel with the one-way control valve.
7. The compressed air control system for continuous air supply according to claim 6, wherein the air compressor (2), the buffer tank (3), the dryer (4), the air filter (8), the air storage tank (5) and the degerming filter (9) are respectively provided with one-way control valves on the pipelines at both sides of the air inlet and the air outlet.
8. A continuously supplied compressed air control system according to claim 1, characterized in that a PLC is provided in the control cabinet (1), which PLC is electrically connected to the air compressor (2), the suction drier (4) and the pressure sensor (6).
9. A continuously supplied compressed air control system according to claim 8, characterized in that the control cabinet (1) is further provided with a display unit connected to the PLC.
10. A continuously supplied compressed air control system according to claim 9, characterized in that the control cabinet (1) is further provided with an audible and visual alarm unit connected to the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508312.0U CN220727944U (en) | 2023-09-15 | 2023-09-15 | Compressed air control system for continuous air supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508312.0U CN220727944U (en) | 2023-09-15 | 2023-09-15 | Compressed air control system for continuous air supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727944U true CN220727944U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322508312.0U Active CN220727944U (en) | 2023-09-15 | 2023-09-15 | Compressed air control system for continuous air supply |
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| Country | Link |
|---|---|
| CN (1) | CN220727944U (en) |
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2023
- 2023-09-15 CN CN202322508312.0U patent/CN220727944U/en active Active
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