CN212208527U - Intelligent monitoring and alarming system for liquid oxygen station of hospital - Google Patents
Intelligent monitoring and alarming system for liquid oxygen station of hospital Download PDFInfo
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- CN212208527U CN212208527U CN202021105939.1U CN202021105939U CN212208527U CN 212208527 U CN212208527 U CN 212208527U CN 202021105939 U CN202021105939 U CN 202021105939U CN 212208527 U CN212208527 U CN 212208527U
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Abstract
The utility model relates to a liquid oxygen station intelligent monitoring alarm system of hospital, including liquid oxygen jar system, multichannel data collection station, computer and wireless network bridge, liquid oxygen jar system with multichannel data collection station connects, multichannel data collection station with the computer is connected, the computer with wireless network bridge connects. The utility model discloses utilize differential pressure formula liquid level changer, pressure sensor, hall proximity switch, through multichannel data collection station, show visual and all kinds of parameters of quantization on the computer, record all kinds of parameters to can upload or preserve to the room-on-duty server on, have liquid oxygen liquid feeding automatic statistics, use jar flowing water when instructing, the liquid level early warning when being close low liquid level and lower limit report to the police, remind the staff in time more to switch over and use jar to reserve jar, guarantee safe in utilization.
Description
Technical Field
The utility model relates to a medical field, concretely relates to liquid oxygen station intelligent monitoring alarm system of hospital.
Background
In the medical field, most of main oxygen of a central oxygen supply system is supplied by a liquid oxygen station, and the oxygen supply of a gas cylinder oxygen station is only emergency standby of main oxygen. The staff needs to know and master the operating state and data of each liquid oxygen tank in time. So as to ensure the safe oxygen supply of the liquid oxygen station.
The existing liquid oxygen station only has pointer type liquid level meters and pressure gauges as basic monitoring instruments of the liquid oxygen station, no power transmission signal output is generated, manual regular patrol and manual recording are needed, the liquid adding amount of instruments such as the pointer type liquid level meters cannot accurately count the liquid adding amount due to different observation habits and angles of observers and factors such as errors of conversion curves, the real-time running state of the liquid oxygen station cannot be reflected in time, and most liquid oxygen stations of many hospitals are electric contact pressure gauge switching pressure alarms with output pressure.
Disclosure of Invention
In view of this, to foretell weak point, the utility model provides an efficient, visual and all kinds of parameters of quantization, the liquid oxygen liquid feeding of being convenient for is makeed statistics of, and the staff in time more switches to use jar to reserve jar.
The utility model relates to a liquid oxygen station intelligent monitoring alarm system of hospital, including liquid oxygen jar system, multichannel data collection station, computer and wireless network bridge, liquid oxygen jar system with multichannel data collection station connects, multichannel data collection station with the computer is connected, the computer with wireless network bridge connects.
The utility model discloses further set up: the liquid oxygen tank system is provided with at least two groups, the liquid oxygen tank system comprises a liquid oxygen tank, a gas phase pressure tapping, a liquid phase pressure tapping, an upper liquid feeding opening and a lower liquid feeding opening are formed on the liquid oxygen tank, the upper liquid feeding opening is connected with an upper liquid feeding pipeline, the lower liquid feeding opening is connected with a lower liquid feeding pipeline, a first liquid feeding valve is arranged on the upper liquid feeding pipeline, a first proximity switch is arranged on one side of the first liquid feeding valve, a second liquid feeding valve is arranged on the lower liquid feeding pipeline, a second proximity switch is arranged on one side of the second liquid feeding valve, a liquid outlet is further formed in the lower end part of the liquid oxygen tank, the liquid outlet is connected with a liquid discharging pipeline, a liquid discharging valve, a vaporizer and a vaporizing pressure transmitter are sequentially arranged on the liquid discharging pipeline, a liquid discharging valve proximity switch is further arranged on one side of the liquid discharging valve, and a liquid level valve set is, the liquid phase pressure tapping is connected with differential pressure type liquid level transmitter through three valves of liquid level, the gaseous phase pressure tapping is connected with self-evaporation pressure transmitter through three valves of liquid level, first proximity switch, second proximity switch, play liquid valve proximity switch, self-evaporation pressure transmitter, differential pressure type liquid level transmitter and vaporization pressure transmitter all with multichannel data collector connects.
The utility model discloses further set up: the multi-channel data acquisition unit is also connected with a liquid oxygen station output pressure sensor and an oxygen flow sensor.
The utility model has the advantages that: the utility model discloses utilize differential pressure formula liquid level changer, pressure sensor, hall proximity switch, through multichannel data collection station, show visual and all kinds of parameters of quantization on the computer, record all kinds of parameters to can upload or preserve to the room-on-duty server on, have liquid oxygen liquid feeding automatic statistics, use jar flowing water when instructing, the liquid level early warning when being close low liquid level and lower limit report to the police, remind the staff in time more to switch over and use jar to reserve jar, guarantee safe in utilization.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals:
100. a liquid oxygen tank; 1. a first liquid inlet valve; 2. a second liquid inlet valve; 3. a first proximity switch; 4. a second proximity switch; 5. an upper liquid inlet pipeline; 6. a lower liquid inlet pipeline; 7. a liquid outlet pipeline; 8. a liquid outlet valve; 9. a vaporizer; 10. a vaporization pressure transmitter; 11. a liquid outlet valve is close to the switch; 12. a liquid level three-valve group; 13. a differential pressure type liquid level transmitter; 14. a self-evaporating pressure transmitter; 15. the liquid oxygen station outputs a pressure sensor; 16. an oxygen flow sensor; 17. a multi-channel data acquisition unit; 18. a computer; 19. a wireless bridge.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model relates to a liquid oxygen station intelligent monitoring alarm system of hospital, including liquid oxygen jar 100 systems, multichannel data collection station 17, computer 18 and wireless bridge 19, liquid oxygen jar 100 systems with multichannel data collection station 17 connects, multichannel data collection station 17 with computer 18 connects, computer 18 with wireless bridge 19 connects.
The liquid oxygen tank 100 system is provided with at least two sets, the liquid oxygen tank 100 system comprises a liquid oxygen tank 100, a gas phase pressure tapping, a liquid phase pressure tapping, an upper liquid feeding port and a lower liquid feeding port are formed on the liquid oxygen tank 100, the upper liquid feeding port is connected with an upper liquid feeding pipeline 5, the lower liquid feeding port is connected with a lower liquid feeding pipeline 6, a first liquid feeding valve 1 is arranged on the upper liquid feeding pipeline 5, a first proximity switch 3 is arranged on one side of the first liquid feeding valve 1, a second liquid feeding valve 2 is arranged on the lower liquid feeding pipeline 6, a second proximity switch 4 is arranged on one side of the second liquid feeding valve 2, a liquid outlet is also formed at the lower end part of the liquid oxygen tank 100, a liquid outlet is connected with a liquid outlet pipeline 7, a liquid outlet valve 8, a vaporizer 9 and a vaporization pressure transmitter 10 are sequentially arranged on the liquid outlet pipeline 7, a liquid outlet valve 8 proximity switch is also arranged on one side of the liquid outlet, the gaseous phase is got the pressure mouth and is connected with liquid level three valves 12, the liquid phase is got the pressure mouth and is connected with differential pressure formula level transmitter 13 through three valves 12 of liquid level, the gaseous phase is got the pressure mouth and is connected with self-evaporation pressure transmitter 14 through three valves 12 of liquid level, first proximity switch 3, second proximity switch 4, go out liquid valve 8 proximity switch, self-evaporation pressure transmitter 14, differential pressure formula level transmitter 13 and vaporization pressure transmitter 10 all with multichannel data collector 17 connects.
The multi-channel data acquisition unit 17 is also connected with a liquid oxygen station output pressure sensor 15 and an oxygen flow sensor 16.
The automatic liquid oxygen and liquid adding statistical system comprises an upper liquid adding opening, a lower liquid adding opening, an upper liquid inlet pipeline 5, a lower liquid inlet pipeline 6, a first liquid inlet valve 1, a first proximity switch 3, a second liquid inlet valve 2, a second proximity switch 4, a liquid level three-valve group 12, a differential pressure type liquid level transmitter 13, a multi-channel data collector 17, a computer 18 and the like; the proximity switch of the liquid outlet valve 8, the multi-channel data acquisition unit 17 and the computer 18 form a use side flow water indicating system of each liquid oxygen tank 100; the liquid level three-valve group 12, the differential pressure type liquid level transmitter 13, the self-evaporation pressure transmitter 14, the vaporization pressure transmitter 10, the liquid oxygen station output pressure sensor 15, the oxygen flow sensor 16, the multi-channel data acquisition device 17 and the computer 18 form a monitoring system for internal liquid level display of each liquid oxygen tank 100 and parameters such as tank body self-evaporation pressure, vaporization pressure, output flow and the like, the system can reflect the parameters such as internal liquid level of each liquid oxygen tank 100 and tank body self-evaporation pressure on line, and when the liquid level in the tank is close to a low liquid level, early warning is carried out at a lower limit, warning is carried out at the time of evaporation pressure overpressure and underpressure, the vaporization pressure, the output pressure and the output flow can be warne. Although oxygen is not flammable gas, if oxygen-rich zones are generated due to leakage, the oxygen-rich zones can be burnt and exploded when meeting oil, static sparks and the like, devices such as a transmitter, a Hall proximity switch and the like in the liquid oxygen station are sealed and explosion-proof, the control cabinet is arranged outside the station, and the connecting pipeline is explosion-proof.
The working principle of the intelligent monitoring and alarming system of the medical liquid oxygen station is as follows: first, a differential pressure level transmitter 13 is used, which has two pressure ports for gas and liquid phases. The pressure at the gas phase pressure taking point is the gas phase pressure at the upper part in the equipment; the pressure at the liquid phase pressure taking point is under the action of the lower gas phase pressure and the static pressure of the liquid column, and the difference between the liquid phase pressure and the gas phase pressure is the static pressure generated by the liquid column. When one end of the differential pressure gauge is connected with a liquid phase and the other end is connected with a gas phase, the differential pressure gauge has the following components according to the hydrostatic principle:
PB＝PA+Hρg (1)
in the formula: h-liquid height; rho is the density of the medium to be measured; g is the gravity acceleration of the measured local area.
Obtainable from formula (1): Δ P ═ PB-PA ═ H ρ g; in general, the density and the gravity acceleration of the measured medium are known, so that the differential pressure measured by the differential pressure gauge is proportional to the height H of the liquid, which changes the problem of measuring the height of the liquid into the problem of measuring the differential pressure.
According to the fluid statics, the liquid level can be judged according to the static pressure of the liquid column of the object to be measured. The static pressure can be detected by a differential pressure gauge and other instruments. The liquid level and the differential pressure have the following relations:
H＝△P/ρ (2)
in the formula (2), H-liquid level height (mm); Δ P-differential pressure (Pa); ρ -liquid density (g/cm 3).
When the liquid density is constant, the liquid level height can be known by measuring the differential pressure, and the liquid level is independent of the liquid volume, or the liquid height is known, namely the differential pressure is known, namely delta P is rho H. The simulation verification method is based on the principle.
The volume L of liquid oxygen in the liquid oxygen tank 100 is in cubic meters,
L＝HSρ (3)
in formula (3): l-liquid oxygen volume amount (M3); h-liquid level height (M); s-can body cross section (M2); ρ -liquid oxygen density (T/M3).
Because the liquid oxygen tank 100 is composed of two volume bodies, the upper part and the lower part are ellipsoids, the volume of the liquid oxygen tank only occupies about 1/10 of the whole tank body, the middle cylinder occupies about 4/5, S is the S lower part + S cylinder + S upper part, the S lower part and the S upper part adopt a computational mathematical model for establishing the cross section of the ellipsoids, if the lower limit value of the ellipsoids close to the lower part is set, the upper limit value of the ellipsoids close to the upper part is set, and thus the computational formula is greatly simplified.
The differential pressure type liquid level transmitter 13 is an OR gate circuit consisting of a first proximity switch 3 and a second proximity switch 4 of each liquid oxygen tank 100, when any one proximity switch (normally closed) of a corresponding group is turned on, a liquid adding switch signal can be automatically sent, a corresponding metering statistical passage is turned on, the corresponding liquid level differential pressure transmitter and the multi-channel data acquisition unit 17 are combined, and after the computer 18 runs corresponding to a corresponding software program, the initial liquid level (La) is obtained at the moment, and automatic liquid adding starts to perform statistics; on the contrary, when all the proximity switches of the corresponding group are closed, the automatic liquid feeding channel is closed, and the end liquid level (Lb) is obtained, and the initial liquid level is subtracted from the end liquid level of the real-time liquid feeding amount ((. DELTA.L) ((Lb) - (La)) of the liquid oxygen tank 100. All sampling signals are output to a multi-channel data acquisition unit 17, and after corresponding software programs are run by a computer 18 and a computer, various corresponding liquid adding amount data are measured and stored, are used for real-time statistics of liquid adding amount each time and monthly accumulation statistics, and are displayed on a screen and stored. If the parameters of the liquid level L displayed in real time are close to the early warning value and the lower limit value, early warning and alarming are carried out in time, and meanwhile, the liquid level L is transmitted to a server of a duty room through network transmission systems such as a wireless network bridge 19.
The liquid outlet valve 8 approach switch of the liquid oxygen tank 100, the multi-channel data collector 17 and the computer 18 form a use side flow water indication system of each liquid oxygen tank 100, when a valve of the liquid outlet valve 8 approach switch (normally open type) of a certain liquid oxygen tank 100 is opened, a switch signal can be automatically sent, a corresponding metering statistical passage is opened, and after the multi-channel data collector 17 is operated by a corresponding software program of the computer 18 computer, a use side flows through flow water indication at the moment; otherwise, when the proximity switch valve is closed, the flowing water indicates closing.
The self-evaporation pressure transmitter 14, the evaporation pressure transmitter 10, the liquid oxygen station output pressure sensor 15, the oxygen flow sensor 16, the multi-channel data collector 17 and the computer 18 form a monitoring system for parameters of the tank body self-evaporation pressure, the output flow and the like of each liquid oxygen tank 100.
The computer 18, the wireless network bridge 19 and the like form a network communication system with the duty room server.
The utility model discloses a medical liquid oxygen station intelligent monitoring alarm system can assist the liquid oxygen's liquid feeding volume statistics, reminds the staff to know the liquid oxygen tank 100 inside liquid level, self-evaporation pressure, liquid oxygen vaporization pressure, oxygen output pressure, the use side flowing water of liquid oxygen station managed and instructs etc. visual and all kinds of parameters of quantization, reach liquid feeding automatic statistics, use oxygen flow statistics, each position pressure automatic monitoring, guarantee the operation safety at liquid oxygen station. Utilize differential pressure formula liquid level transmitter 13, pressure sensor, hall proximity switch, through multichannel data collection station 17, show visual and all kinds of parameters of quantization on computer 18, record all kinds of parameters to can upload or preserve to the room-on-duty server on, have liquid oxygen liquid feeding automatic statistics, use jar flowing water instruction, early warning when the liquid level is close low liquid level and alarm when the lower limit, remind the staff in time more switch over to use jar to reserve jar, guarantee safe in utilization.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a liquid oxygen station intelligent monitoring alarm system of hospital which characterized in that: including liquid oxygen jar system, multichannel data collection station, computer and wireless bridge, liquid oxygen jar system with multichannel data collection station connects, multichannel data collection station with the computer is connected, the computer with wireless bridge connects.
2. The intelligent monitoring and alarm system for the liquid oxygen station of the hospital according to claim 1, characterized in that: the liquid oxygen tank system is provided with at least two groups, the liquid oxygen tank system comprises a liquid oxygen tank, a gas phase pressure tapping, a liquid phase pressure tapping, an upper liquid feeding opening and a lower liquid feeding opening are formed on the liquid oxygen tank, the upper liquid feeding opening is connected with an upper liquid feeding pipeline, the lower liquid feeding opening is connected with a lower liquid feeding pipeline, a first liquid feeding valve is arranged on the upper liquid feeding pipeline, a first proximity switch is arranged on one side of the first liquid feeding valve, a second liquid feeding valve is arranged on the lower liquid feeding pipeline, a second proximity switch is arranged on one side of the second liquid feeding valve, a liquid outlet is further formed in the lower end part of the liquid oxygen tank, the liquid outlet is connected with a liquid discharging pipeline, a liquid discharging valve, a vaporizer and a vaporizing pressure transmitter are sequentially arranged on the liquid discharging pipeline, a liquid discharging valve proximity switch is further arranged on one side of the liquid discharging valve, and a liquid level valve set is, the liquid phase pressure tapping is connected with differential pressure type liquid level transmitter through three valves of liquid level, the gaseous phase pressure tapping is connected with self-evaporation pressure transmitter through three valves of liquid level, first proximity switch, second proximity switch, play liquid valve proximity switch, self-evaporation pressure transmitter, differential pressure type liquid level transmitter and vaporization pressure transmitter all with multichannel data collector connects.
3. The intelligent monitoring and alarm system for the liquid oxygen station of the hospital according to claim 1 or 2, characterized in that: the multi-channel data acquisition unit is also connected with a liquid oxygen station output pressure sensor and an oxygen flow sensor.
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| CN202021105939.1U CN212208527U (en) | 2020-06-15 | 2020-06-15 | Intelligent monitoring and alarming system for liquid oxygen station of hospital |
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| CN202021105939.1U CN212208527U (en) | 2020-06-15 | 2020-06-15 | Intelligent monitoring and alarming system for liquid oxygen station of hospital |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566120A (en) * | 2021-07-20 | 2021-10-29 | 杭州依技设备成套工程有限公司 | Non-electric pneumatic automatic switching system in medical liquid oxygen station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566120A (en) * | 2021-07-20 | 2021-10-29 | 杭州依技设备成套工程有限公司 | Non-electric pneumatic automatic switching system in medical liquid oxygen station |
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