CN113577474B - Centralized oxygen supply monitoring system for hospital - Google Patents
Centralized oxygen supply monitoring system for hospital Download PDFInfo
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- CN113577474B CN113577474B CN202110821311.4A CN202110821311A CN113577474B CN 113577474 B CN113577474 B CN 113577474B CN 202110821311 A CN202110821311 A CN 202110821311A CN 113577474 B CN113577474 B CN 113577474B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
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- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a centralized oxygen supply monitoring system for hospitals, wherein a pressure sensor and a first flowmeter are arranged on a first main pipe led out from a liquid oxygen station, a second flowmeter is arranged on a second main pipe led out from an emergency air source, a plurality of branch pipes respectively leading to a plurality of oxygen supply areas are led out after the first main pipe and the second main pipe are connected, and a first stop valve and a third flowmeter which are close to the head ends of the branch pipes and a second stop valve and a fourth flowmeter which are close to the tail ends of the branch pipes are arranged on the branch pipes; when the pressure fed back by the pressure sensor is abnormal or the flow fed back by the first flowmeter is abnormal, the liquid oxygen station sends out a corresponding alarm, and the emergency gas source responds to an abnormal signal and automatically switches the valve to feed the oxygen of the busbar steel cylinder into the second main pipe so as to supply the oxygen to the branch pipe.
Description
Technical Field
The invention relates to the technical field of medical oxygen supply, in particular to a centralized oxygen supply monitoring system for hospitals.
Background
The medical gas is an important component of a hospital life support system, wherein the oxygen is the most extensive medical gas in clinical use in hospitals, the medical gas equipment source is connected to a use terminal, the medical gas equipment source is composed of a main gas source, a standby gas source, an emergency gas source, a transmission pipeline, a tail end gas socket and auxiliary accessories, the hospital integral oxygen supply system is established according to relevant design specifications, in actual work, a busbar of the emergency gas source is in butt joint with an oxygen main pipe through a valve, when the pressure of the oxygen main pipe is reduced due to some reason, the default oxygen demand of a pressure detection system is increased, and the emergency gas source is switched to be put into use through the valve switching so as to maintain the stability of gas supply pressure. In recent years, with the development of industry and the improvement of technical progress and the safety consciousness of medical institutions, some medical gas systems of hospitals with stronger safety consciousness are equipped with an oxygen supply pressure monitoring system, even some liquid oxygen stations of hospitals are equipped with liquid oxygen tank liquid level display and pressure remote alarm systems, pipeline pressure overpressure or underpressure, monitoring equipment gives an alarm, the system can give an alarm continuously when the pressure is low, through automatic switching control device, emergent oxygen is merged into an oxygen main pipe, the oxygen supply is supplemented properly, when the pressure is recovered to a normal interval, the alarm of the monitoring equipment can be relieved automatically, and the default oxygen supply state of the system is recovered to be normal.
At present, the medical industry is vigorously developed, huge medical buildings are continuously developed, the distance between an oxygen supply station and a medical room is further and further increased, outdoor oxygen main pipelines tend to be zigzag, the environmental risk is increased, the outdoor ground damage phenomenon of the buildings happens, or construction settlement, or geological settlement, or vehicle collapse is caused, particularly, the surrounding geology of a newly-built building is soft, the ground settlement needs to last for many years, and in addition, the installation of some oxygen pipelines is not standard, the danger that the pipelines are easy to break and damage exists, and accidents that various pipelines are broken can often happen. The oxygen system of hospital is constantly operated round the clock, maintain the safeguard function of a large amount of medical units, consider situations such as outdoor main line rupture and big leakage, even in tens minutes, a large amount of emergent bottled oxygen on the busbar consume totally fast after automatic switch-over, consider factors such as the leak source judgement time is longer and bottled oxygen memory space is limited, so there is very big hidden danger in blindly carrying out valve automatic switch-over between emergent air supply and the oxygen suppliment house steward, so need apply automatic switching over device and must be based on oxygen flow real-time detection and the reliable basis of alarm principle just actual meaning, the result of blindly switching over, not only consume emergent oxygen volume fast, also will lead to each medical area of hospital to be in the oxygen suppliment scarce state, endanger all medical gas unit.
Disclosure of Invention
The technical problem to be solved by the invention is how to shorten the time for judging the leakage point, and the invention provides the hospital centralized oxygen supply monitoring system, which can quickly and accurately judge the leakage point, and can effectively isolate the problem pipeline and the normal pipeline by automatically switching the first stop valve, thereby reducing the misjudgment crisis.
The technical scheme includes that the hospital centralized oxygen supply monitoring system is used in an oxygen supply system comprising a liquid oxygen station and an emergency air source which are connected in parallel, a pressure sensor and a first flowmeter are arranged on a first main pipe led out from the liquid oxygen station, a second flowmeter is arranged on a second main pipe led out from the emergency air source, multi-path branch pipes which are respectively communicated with a plurality of oxygen supply areas are led out after the first main pipe and the second main pipe are connected, and a first stop valve and a third flowmeter which are close to the head ends of the branch pipes and a second stop valve and a fourth flowmeter which are close to the tail ends of the branch pipes are arranged on the branch pipes; when the pressure fed back by the pressure sensor is abnormal or the flow fed back by the first flowmeter is abnormal, the liquid oxygen station sends out corresponding alarm, the emergency gas source responds to an abnormal signal and automatically switches a valve to throw busbar steel cylinder oxygen into the second main pipe to be supplied to the branch pipes, if the pressure of the first main pipe is still abnormal and the sum of the flow rates fed back by the first flow meter and the second flow meter is larger than the sum of the flow rates fed back by the fourth flow meters on the branch pipes, at this time, if the flow fed back by the third flow meter on the branch pipe is larger than the flow fed back by the fourth flow meter on the branch pipe, the branch pipe automatic switching valve closes the first stop valve, an oxygen supply area where the branch pipe is located gives out corresponding alarm, and when the pressure fed back by the pressure sensor returns to normal, the liquid oxygen station stops giving the alarm.
In one embodiment, the oxygen supply area includes, but is not limited to, an ICU, an emergency department, a surgical department, and a diseased area.
In one embodiment, the feedback is a pressure anomaly when the pressure detected by the pressure sensor is less than 85% of the rated pressure.
As an implementation mode, a plurality of uniformly distributed thread ring grooves are arranged in the branch pipe along the length direction of the branch pipe, a position sensor close to the thread ring grooves is further arranged on the inner wall of the branch pipe, a walking mechanism used for walking in the branch pipe is further arranged in the branch pipe, one side of the walking mechanism is provided with a first motor with a rotating shaft along the axial direction of the branch pipe, a mounting disc is connected to the rotating shaft of the first motor through a supporting frame expanding towards the inner wall of the branch pipe, a via hole is arranged at the center of the mounting disc, one side of the mounting disc is provided with a ball barrel, the two sides of the ball barrel are provided with openings, the middle of the ball barrel is provided with a ball body with a through hole, the outer wall of the ball body is in airtight contact with the middle inner wall of the ball barrel, and the outer side of the ball barrel is provided with a second motor for driving the ball body to rotate, the through hole of the sphere is completely covered by the middle inner wall of the sphere barrel after rotating along with the sphere and the sphere blocks the openings at the two sides of the sphere barrel, a sealing ring is further arranged on one side, facing the ball barrel, of the mounting disc, a turnover motor capable of turning the sealing ring outwards towards the side where the supporting frame is located and enabling the outer side wall of the sealing ring to elastically abut against the periphery of the mounting disc is arranged on the periphery of the mounting disc, an annular sealing ring is arranged at the position, close to the supporting frame, of the periphery of the mounting disc, an annular sealing groove is arranged at the position, close to the ball cylinder, of the outer side wall of the sealing ring, the sealing ring is embedded into the sealing groove after the sealing ring is turned out, the inner side wall of the sealing ring is provided with an external thread which can be matched with the thread ring groove after being turned out, and the branch pipe is also provided with a ventilation interface close to the head end of the branch pipe; after the first stop valve is closed, the travelling mechanism travels from the head end to the tail end in the branch pipe and stops traveling when being detected by the position sensor, the second motor and the overturning motor respectively drive the ball body to rotate and the sealing ring to turn outwards after the travelling mechanism stops traveling, then the first motor drives the mounting disc to rotate, so that the external thread and the thread ring groove which are positioned on the outer side of the periphery of the mounting disc along with the turning outwards of the sealing ring are in sealed contact, and then the branch pipe is subjected to gas supply and pressure measurement at the ventilation interface to detect whether a leak point exists from the position of the first stop valve to the position of the travelling mechanism.
As an implementation manner, a rotating disc is arranged on a rotating shaft of the first motor, and the supporting frame is connected between the rotating disc and the mounting disc.
In one embodiment, the cross section of the sealing ring is semicircular.
In one embodiment, the cross section of the sealing groove is trapezoidal.
As an implementation mode, running gear includes cylindric installation casing, one side of installation casing provides first motor installation, the circumference of installation casing is equipped with three evenly distributed's third motor, the third motor passes through the gear and establishes the runner transmission connection in its both sides, both sides the axis of runner with the axis of third motor is the font so that the runner can laminate divide the pipe inner wall, the third motor with the junction of runner is equipped with transmission casing, transmission casing with be equipped with the cover between the installation casing and be in the spring in the third motor outside so that the runner can elasticity laminating divide the pipe inner wall.
In one embodiment, the circumferential surface of the runner is provided with anti-skid lines.
Compared with the prior art, the invention has the advantages that the oxygen supply system of the existing hospital can be perfected, particularly, the problem oxygen supply area can be judged quickly and accurately, the effective isolation between the problem pipeline and the normal pipeline is realized through the automatic switching of the first stop valve, the judgment of misjudgment and misjudgment crisis is reduced, the obvious effect is achieved, and the safety guarantee level of the system can be promoted to be continuously improved. How to quickly and accurately judge the problem oxygen supply area? When the pressure fed back by the pressure sensor is abnormal or the flow fed back by the first flowmeter is abnormal, the liquid oxygen station sends out a corresponding alarm, the emergency gas source responds to an abnormal signal and automatically switches the valve to feed oxygen in the busbar steel cylinder into the second main pipe to be supplied to the branch pipes, if the pressure of the first main pipe is still abnormal and the sum of the flows fed back by the first flowmeter and the second flowmeter is larger than the sum of the flows fed back by the fourth flowmeters on the branch pipes, at the moment, if the flow fed back by the third flowmeter on the branch pipes is larger than the flow fed back by the fourth flowmeter on the branch pipes, the oxygen supply area where the branch pipes are located is judged to be a problem oxygen supply area.
Drawings
Fig. 1 is a pneumatic schematic diagram of a hospital centralized oxygen supply monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the split pipe according to the embodiment of the present invention;
FIG. 3 is a first structural schematic diagram of a traveling mechanism and components thereof according to an embodiment of the present invention;
FIG. 4 is a second structural schematic diagram of a traveling mechanism and components thereof according to an embodiment of the present invention;
FIG. 5 is a schematic sectional view of a ball barrel and a ball body according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of a seal ring and seal groove provided in accordance with an embodiment of the present invention;
fig. 7 is a third structural schematic diagram of the traveling mechanism and the upper part thereof according to the embodiment of the invention.
In the figure: 1. a pressure sensor; 2. a first flow meter; 3. a second flow meter; 4. a first shut-off valve; 5. a third flow meter; 6. a second stop valve; 7. a fourth flow meter; 8. pipe distribution; 9. a thread ring groove; 10. a position sensor; 11. a traveling mechanism; 111. installing a shell; 112. a third motor; 113. a rotating wheel; 114. a transmission housing; 115. a spring; 116. anti-skid lines; 12. a first motor; 13. a support frame; 14. mounting a disc; 15. a via hole; 16. a ball cylinder; 17. a feed-through hole; 18. a sphere; 19. a second motor; 20. a seal ring; 21. turning over a motor; 22. a seal ring; 23. a sealing groove; 24. an external thread; 25. a vent interface; 26. a turntable.
Detailed Description
The foregoing and additional embodiments and advantages of the present invention are described more fully hereinafter with reference to the accompanying drawings. It is to be understood that the described embodiments are merely some, and not all, embodiments of the invention.
In one embodiment, as shown in FIG. 1.
The embodiment provides a centralized oxygen supply monitoring system for hospitals, which is used in an oxygen supply system comprising a liquid oxygen station and an emergency air source which are connected in parallel, wherein a pressure sensor 1 and a first flowmeter 2 are arranged on a first main pipe led out from the liquid oxygen station, a second flowmeter 3 is arranged on a second main pipe led out from the emergency air source, a plurality of branch pipes leading to a plurality of oxygen supply areas are led out after the first main pipe and the second main pipe are connected, four branch pipes are shown in the figure and are respectively supplied to an ICU, an emergency department, an operation department and a disease area. And the branch pipe is provided with a first stop valve 4 and a third flow meter 5 which are close to the head end of the branch pipe, and a second stop valve 6 and a fourth flow meter 7 which are close to the tail end of the branch pipe. Only the 1-way branch pipe for the ICU is shown, as is the other three. When the pressure fed back by the pressure sensor 1 is abnormal or the flow fed back by the first flowmeter 2 is abnormal, the liquid oxygen station gives out corresponding alarm, the emergency air source responds to an abnormal signal and automatically switches the valve to put the oxygen in the busbar steel cylinder into the second main pipe to be supplied to the branch pipes, if the pressure of the first main pipe is still abnormal and the sum of the flows fed back by the first flowmeter 2 and the second flowmeter 3 is larger than the sum of the flows fed back by the fourth flowmeters 7 on each branch pipe, at the moment, if the flow fed back by the third flowmeter 5 on the branch pipe is larger than the flow fed back by the fourth flowmeter 7 on the branch pipe, the automatic branch pipe switching valve closes the first stop valve 4, an oxygen supply area where the branch pipe is located gives out corresponding alarm, and when the pressure fed back by the pressure sensor 1 is normal, the liquid oxygen station stops giving the alarm.
In this embodiment, can perfect the oxygen system of present hospital, specifically quick and accurate judgement problem oxygen suppliment is regional to the automatic switch-over through first stop valve 4 realizes the effective isolation of problem pipeline and normal pipeline, to reducing the wrong crisis of judging by mistake, has obvious effect, can promote the system safety guarantee level and constantly promote. How to quickly and accurately judge the problem oxygen supply area? In the embodiment, when the pressure fed back by the pressure sensor 1 is abnormal or the flow fed back by the first flow meter 2 is abnormal, the liquid oxygen station sends a corresponding alarm, the emergency air source automatically switches the valve to throw the busbar steel cylinder oxygen into the second main pipe in response to an abnormal signal to supply to the branch pipes, if the pressure of the first main pipe is still abnormal and the sum of the flows fed back by the first flow meter 2 and the second flow meter 3 is greater than the sum of the flows fed back by the fourth flow meters 7 on the branch pipes, at this time, if the flow fed back by the third flow meter 5 on the branch pipe is greater than the flow fed back by the fourth flow meters 7 on the branch pipes, the oxygen supply area where the branch pipe is located is determined to be a problem oxygen supply area. At the moment, the pressure fed back by the pressure sensor 1 and the flow fed back by the first flowmeter 2 can be recovered to be normal, and the corresponding liquid oxygen station stops alarming. And the warning in the oxygen suppliment region still exists, after the branch pipe automatic switch-over valve made first stop valve 4 close, to one section of first stop valve 4 to second stop valve 6, can artifical investigation, repaired the pipeline after finding the leak source. Therefore when certain department's oxygen suppliment region has the leak source, can be fast and accurate judge problem oxygen suppliment region and realize the effective isolation of problem pipeline and normal pipeline through the automatic switch-over of first stop valve 4, prevent that the oxygen suppliment region of normal pipeline from receiving the influence. For the problem oxygen supply area, an emergency oxygen steel cylinder can be started or bottled oxygen emergency can be directly started. In the present embodiment, when the pressure detected by the pressure sensor 1 is less than 85% of the rated pressure, the feedback is a pressure abnormality.
In one embodiment, as shown in fig. 2-5.
In the centralized oxygen supply monitoring system for hospitals provided by the embodiment, a plurality of thread ring grooves 9 which are uniformly distributed and are arranged on the inner wall of a branch pipe 8 are arranged in the branch pipe 8 along the length direction of the branch pipe, a position sensor 10 which is close to the thread ring grooves 9 is also arranged on the inner wall of the branch pipe 8, a walking mechanism 11 which is used for walking in the branch pipe 8 is also arranged in the branch pipe 8, a first motor 12 with a rotating shaft along the axial direction of the branch pipe 8 is arranged on one side of the walking mechanism 11, a mounting disc 14 is connected on the rotating shaft of the first motor 12 through a supporting frame 13 which is expanded towards the inner wall of the branch pipe 8, a through hole 15 is arranged in the center of the mounting disc 14, a ball barrel 16 with openings on two sides and a spherical surface which is bulged outwards is arranged on one side of the mounting disc 14, one side of the ball barrel 16 is connected with the through hole 15, a ball 18 with a through hole 17 is arranged in the middle of the ball barrel 16, the outer wall of the ball barrel 18 is in airtight contact with the middle inner wall of the ball barrel 16, the outer side of the ball barrel 16 is provided with a second motor 19 for driving the ball 18 to rotate, the through hole 17 of the ball 18 is completely covered by the middle inner wall of the ball barrel 16 after the ball 18 rotates, the ball 18 blocks the openings at the two sides of the ball barrel 16, one side of the mounting disc 14 facing the ball barrel 16 is further provided with a sealing ring 20, the periphery of the mounting disc 14 is provided with a turnover motor 21 which can turn the sealing ring 20 outwards towards one side where the support frame 13 is located and enable the outer side wall of the sealing ring 20 to elastically abut against the periphery of the mounting disc 14, the periphery of the mounting disc 14 close to the support frame 13 is provided with an annular sealing ring 22, the outer side wall of the sealing ring 20 close to the ball barrel 16 is provided with an annular sealing groove 23, the sealing ring 22 is embedded into the sealing groove 23 after the sealing ring 20 is turned out, the inner side wall of the sealing ring 20 is provided with an external thread 24 which can be matched with the thread ring groove 9 after being turned out, and the branch pipe 8 is further provided with a ventilation interface 25 close to the head end of the branch pipe 8. When the first stop valve 4 is closed, the travelling mechanism 11 travels from the head end to the tail end in the branch pipe 8 and stops traveling when detected by the position sensor 10, the second motor 19 and the overturning motor 21 respectively drive the ball 18 to rotate and the sealing ring 20 to turn outwards after the travelling mechanism 11 stops traveling, then the first motor 12 drives the mounting disc 14 to rotate so that the external thread 24 and the thread ring groove 9 which are positioned on the outer side of the periphery of the mounting disc 14 along with the turning outwards of the sealing ring 20 are in sealing contact, and then air and pressure are supplied to the ventilation interface 25 to detect whether a leakage point exists between the position of the branch pipe 8 from the first stop valve 4 to the position of the travelling mechanism 11.
In the present embodiment, after the branch pipe 8 automatically switches the valves to close the first stop valve 4, a manual check may be performed on a section from the first stop valve 4 to the second stop valve 6 to find a leak point and then repair the pipeline. How can a specific leak point of the branch pipe 8 be found quickly? The branch pipe 8 in the present embodiment is different from the existing branch pipe. As shown in fig. 2, a plurality of threaded ring grooves 9 and adjacent position sensors 10 are uniformly distributed in the branch pipe 8 along the length direction, and each position sensor 10 is located at a detection point. And the branch pipe 8 is also provided with a head end ventilation interface 25 close to the branch pipe 8. During normal ventilation, oxygen is conveyed to the tail end of the branch pipe 8 through the through hole 17 of the ball 18 and the through hole 15 of the ball barrel 16, and can also be conveyed to the tail end of the branch pipe 8 through a gap between the mounting plate 14 and the inner wall of the branch pipe 8. During the investigation, after the first stop valve 4 is closed, the traveling mechanism 11 travels from the head end to the tail end in the branch pipe 8, and sequentially passes through the position sensors 10 to perform detection one by one until a leak point is found. Specifically, the traveling mechanism 11 stops traveling when detected by the position sensor 10, the second motor 19 and the turning motor 21 respectively drive the sphere 18 to rotate and the sealing ring 20 to turn outwards after the traveling mechanism 11 stops traveling, the sphere 18 blocks a channel which can originally circulate after rotating, and the sealing ring 20 turns outwards and then is in airtight contact with the mounting disc 14 through the matching of the sealing ring 22 and the sealing groove 23. As for the gap between the sealing ring 20 and the inner wall of the branch pipe 8, after the sealing ring 20 is turned outwards, the mounting disc 14 is driven by the first motor 12 to rotate so that the external thread 24 is in close contact with the thread ring groove 9. When the running gear 11 stops running, its rest point is therefore the position in which the sealing ring 20 is located exactly in the thread ring groove 9. Thereafter, it is detected whether or not there is a leak from the position of the branch pipe 8 from the first stop valve 4 to the position of the traveling mechanism 11 by supplying and measuring air at the air vent 25. If no leakage point exists, the pressure value in the branch pipe 8 is stable after the air is supplied for a certain time. If there is a leak point, the pressure value in the branch pipe 8 is not increased.
In one embodiment, as shown in FIG. 4.
In the centralized oxygen supply monitoring system for hospitals provided by the embodiment, the rotating shaft of the first motor 12 is provided with the rotating disc 26, and the supporting frame 13 is connected between the rotating disc 26 and the mounting disc 14.
In the present embodiment, a connection structure between the first motor 12 and the mounting plate 14 is provided, specifically, a connection is made through the support frame 13 and the turntable 26. The support 13 is shaped to expand outwardly like an umbrella rib when the umbrella is unfolded, and the support 13 includes 3 struts uniformly distributed in the circumferential direction.
In one embodiment, as shown in FIG. 6.
In the centralized oxygen supply monitoring system for hospitals according to the present embodiment, the cross section of the sealing ring 22 is semicircular. The cross section of the sealing groove 23 is trapezoidal.
In the present embodiment, by providing the seal ring 22 having a semicircular cross section and the seal groove 23 having a trapezoidal cross section, a better sealing effect can be provided. Since the trapezoid has both sides of the oblique sides, the rounded faces may contact on both sides of the oblique sides, respectively. In terms of the angles of the seal ring 22 and the seal groove 23, two line contacts exist between the seal ring 22 and the seal groove 23, so that a good sealing effect can be achieved.
In one embodiment, as shown in FIG. 7.
The embodiment provides a hospital centralized oxygen supply monitoring system, a traveling mechanism 11 of which comprises a cylindrical mounting shell 111, a first motor 12 is provided on one side of the mounting shell 111, three third motors 112 which are uniformly distributed are arranged on the circumference of the mounting shell 111, the third motors 112 are in transmission connection with rotating wheels 113 arranged on two sides of the third motors through gears, the axes of the rotating wheels 113 on two sides and the axes of the third motors 112 are in a shape of a letter, so that the rotating wheels 113 can be attached to the inner wall of a branch pipe 8, a transmission shell 114 is arranged at the connection position of the third motors 112 and the rotating wheels 113, and a spring 115 which is sleeved on the outer side of the third motors 112 is arranged between the transmission shell 114 and the mounting shell 111, so that the rotating wheels 113 can be elastically attached to the inner wall of the branch pipe 8. The runner 113 is provided with an anti-slip pattern 116 on the circumferential surface thereof.
In the present embodiment, the traveling mechanism 11 is used in the branch pipe 8, and therefore, three sets of the runners 113 are provided, and the axis of each set of the runners 113 and the axis of the third motor 112 are in a letter shape, so that the runners 113 can be more favorably attached to the inner wall of the branch pipe 8. Further, in order to allow the traveling mechanism 11 to travel stably, for example, when passing through a position where the screw ring groove 9 is provided, the traveling can be kept stable by providing the spring 115 between the transmission case 114 and the mounting case 111.
The above embodiments further describe the object, technical means, and advantageous effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (8)
1. A centralized oxygen supply monitoring system for hospitals is used in an oxygen supply system comprising a liquid oxygen station and an emergency air source which are connected in parallel, and is characterized in that a pressure sensor (1) and a first flowmeter (2) are arranged on a first main pipe led out from the liquid oxygen station, a second flowmeter (3) is arranged on a second main pipe led out from the emergency air source, multipath branch pipes which are respectively led to a plurality of oxygen supply areas are led out after the first main pipe and the second main pipe are connected, and a first stop valve (4) and a third flowmeter (5) which are close to the head end of the branch pipes, and a second stop valve (6) and a fourth flowmeter (7) which are close to the tail end of the branch pipes are arranged on the branch pipes; when the pressure fed back by the pressure sensor (1) is abnormal or the flow fed back by the first flow meter (2) is abnormal, the liquid oxygen station gives a corresponding alarm, the emergency gas source automatically switches a valve to feed the busbar steel cylinder oxygen to the second main pipe in response to an abnormal signal to supply the branch pipe, if the pressure of the first main pipe is still abnormal and the sum of the flow fed back by the first flow meter (2) and the second flow meter (3) is larger than the sum of the flow fed back by the fourth flow meters (7) on each branch pipe, at the moment, if the flow fed back by the third flow meter (5) on the branch pipe is larger than the flow fed back by the fourth flow meter (7) on the branch pipe, the branch pipe automatically switches the valve to close the first stop valve (4), the oxygen supply area where the branch pipe is located gives a corresponding alarm, and when the pressure fed back by the pressure sensor (1) returns to be normal, the liquid oxygen station stops alarming;
divide and be equipped with a plurality of evenly distributed's seting up along its length direction in pipe (8) divide screw ring groove (9) of pipe (8) inner wall, divide pipe (8) inner wall still to be equipped with and be close to position sensor (10) of screw ring groove (9), divide still to be equipped with in pipe (8) to be used for running gear (11) of walking in pipe (8), one side of running gear (11) is equipped with the pivot along the axial first motor (12) of pipe (8), be equipped with mounting disc (14) in the pivot of first motor (12), one side of mounting disc (14) is equipped with sealing ring (20), the periphery of mounting disc (14) be equipped with can with sealing ring (20) turn up and make the lateral wall elasticity of sealing ring (20) is contradicted in the peripheral upset motor (21) of mounting disc (14), the periphery of mounting disc (14) is equipped with annular seal ring (22), the lateral wall of sealing ring (20) is equipped with ring seal groove (23), sealing washer (22) are in embedding after sealing ring (20) turns over in seal groove (23), the inside wall of sealing ring (20) is equipped with and can cooperates after turning over external screw thread (24) of screw thread annular (9), first motor (12) drive mounting disc (14) rotate the messenger external screw thread (24) with screw thread annular (9) airtight contact, still be equipped with on the branch pipe (8) and be close to head end air vent interface (25) of branch pipe (8).
2. The hospital centralized oxygen supply monitoring system according to claim 1, wherein the oxygen supply areas include, but are not limited to, ICU, emergency department, surgical department, and ward.
3. The hospital central oxygen supply monitoring system according to claim 1, wherein the feedback is a pressure anomaly when the pressure detected by the pressure sensor (1) is less than 85% of the rated pressure.
4. The hospital centralized oxygen supply monitoring system according to claim 1, wherein a rotating disc (26) is provided on a rotating shaft of the first motor (12), a support frame (13) which is expanded to the inner wall of the branch pipe (8) is provided on the rotating disc (26), and the support frame (13) is connected to the mounting disc (14).
5. The hospital central oxygen supply monitoring system according to claim 1, wherein the cross section of the sealing ring (22) is semicircular.
6. The hospital central oxygen supply monitoring system according to claim 5, wherein the cross section of the sealing groove (23) is trapezoidal.
7. Hospital oxygen centralized monitoring system according to claim 1, wherein the walking mechanism (11) comprises a cylindrical mounting housing (111), one side of the mounting shell (111) is provided for mounting the first motor (12), three third motors (112) which are uniformly distributed are arranged on the circumferential direction of the mounting shell (111), the third motor (112) is in transmission connection with the rotating wheels (113) arranged on the two sides of the third motor through gears, the axes of the rotating wheels (113) on the two sides and the axis of the third motor (112) are in a character shape so that the rotating wheels (113) can be attached to the inner wall of the branch pipe (8), a transmission shell (114) is arranged at the joint of the third motor (112) and the rotating wheel (113), a spring (115) sleeved outside the third motor (112) is arranged between the transmission shell (114) and the mounting shell (111) so that the rotating wheel (113) can be elastically attached to the inner wall of the branch pipe (8).
8. The hospital central oxygen supply monitoring system according to claim 7, wherein the rotating wheel (113) is provided with anti-skid lines (116) on the circumferential surface.
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