CN208388912U - A kind of helium oxygen mixing automatic feeding system - Google Patents
A kind of helium oxygen mixing automatic feeding system Download PDFInfo
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- CN208388912U CN208388912U CN201721413067.3U CN201721413067U CN208388912U CN 208388912 U CN208388912 U CN 208388912U CN 201721413067 U CN201721413067 U CN 201721413067U CN 208388912 U CN208388912 U CN 208388912U
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Abstract
The utility model relates to a kind of helium oxygen mixing automatic feeding systems, it includes medical oxygen cabinet, vacuum pump and control platform, the air supply system further includes helium oxygen blending tank, surge tank, oxygen feeding tube is connected on helium oxygen blending tank and into helium tube, oxygen feeding tube and into being respectively mounted electrically-controlled valve and flowmeter on helium tube, the outlet of helium oxygen blending tank and the import of surge tank connect, a positive ballasting air supply pipe and a negative pressure cab air supply pipe are drawn in the outlet of surge tank, are respectively mounted electrically-controlled valve on positive ballasting air supply pipe and negative pressure cab air supply pipe；Oxygen concentration sensor and baroceptor are mounted in positive ballasting and in negative pressure cab；The control terminal of the signal output end and each electrically-controlled valve of each flowmeter and each sensor is electrically connected with the controller.The utility model has the advantages that structure is simple, manipulation is convenient, gas mixing effect is good, cabin pressure is reliable and stable.
Description
Technical field
The utility model relates to medical oxygen cabinet field, specifically a kind of helium oxygen mixing automatic feeding system.
Background technique
Hyperbaric oxygen chamber is mainly used for the hyperbaric oxygentherapy rehabilitation and rescue of various ischemic hypoxia diseases.It is exhaled for some
Desorption system disease, such as the patient of interstitial lung disease, laryngeal edema, respiratory failure airway obstructive disease, for example, II type
According to conventional therapy if single suction enters pure oxygen in oxygen cabin, ideal therapeutic effect is not only not achieved, instead in the patient of respiratory failure
And the state of an illness can be aggravated, and can solve if being input to after by a certain proportion of helium and oxygen mix and being sucked in hyperbaric oxygen chamber
This problem obtains ideal therapeutic effect.Due to the physicochemical property of helium, after treatment ratio helium oxygen mixing, the
One can damage to avoid high-concentration oxygen to body, second can be very good to carry oxygen disperse in patient airway, can be with
The tiny micro- air flue in distal end is permeated into, solves the problems, such as that patient air flow is limited, has difficulty in breathing, meanwhile, reduce patient airway resistance, row
Carbon dioxide is more thorough out, keeps breathing more unobstructed, improves ventilation /perfusion ratio, improves patients ' life quality.
Current medical oxygen cabinet usually only has the treatment function of hyperbaric oxygen chamber, and hyperbaric oxygentherapy applies in general to coal gas
The diseases such as poisoning, the altitude sickness of equal gases.Simulation and treatment for low-oxygen environment, such as the anoxia tolerance to mountaineer
Experiment, common medical oxygen cabinet do not have the simulation of negative pressure low-oxygen environment, and therefore, it is necessary to a kind of doctors for having both positive pressure and negative pressure function
Treat oxygen cabin.Gas supply problem and cabin stable gas pressure regulation problem are the key problems of medical oxygen cabinet, in view of the above-mentioned problems, this case mentions
For a kind of helium oxygen mixing automatic feeding system for being exclusively used in medical oxygen cabinet.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of structures simply, manipulation is convenient, gas mixing effect is good,
The reliable and stable helium oxygen mixing automatic feeding system of cabin pressure.
In order to solve the above technical problems, the helium oxygen mixing automatic feeding system of the utility model includes medical oxygen cabinet, vacuum
Pump and control platform, medical oxygen cabinet are divided into positive ballasting and negative pressure cab, and vacuum pump is inhaled by positive ballasting air intake duct and negative pressure cab respectively
Tracheae is connect with positive and negative ballasting, and the control terminal of control platform built-in controller, vacuum pump is electrically connected with the controller, and structure is special
It further includes helium oxygen blending tank, surge tank that point, which is the air supply system, oxygen feeding tube is connected on helium oxygen blending tank and into helium tube, on oxygen feeding tube
First electrically-controlled valve and first flowmeter are installed, into helium tube on the second electrically-controlled valve and second flowmeter be installed, helium oxygen blending tank goes out
Mouth is connect with the import of surge tank, a positive ballasting air supply pipe and a negative pressure cab air supply pipe is drawn in the outlet of surge tank, just
Third electrically-controlled valve is installed on ballasting air supply pipe, the 4th electrically-controlled valve is installed on negative pressure cab air supply pipe；In positive ballasting and in negative pressure cab
Oxygen concentration sensor and baroceptor are installed；It is automatically controlled that the 5th is installed respectively on positive ballasting air intake duct and negative pressure cab air intake duct
Valve and the 6th electrically-controlled valve；The control terminal of the signal output end and each electrically-controlled valve of each flowmeter and each sensor is electric with controller
Connection.
It using the above structure, is pressed gas due to being passed through the indoor gas in cabin, by baroceptor, controller control
Vacuum pump processed and the five, the 6th two electrically-controlled valves, are adjusted the pressure in two cabins, to guarantee that cabin room pressure is steady
Fixed, especially negative pressure cab passes through the stable a certain height above sea level of air pressure adjustment analog due to the corresponding height above sea level of each air pressure
Highly, so as to tester's progress adaptation to high altitude training or test；In order to realize the automatic mixing of oxygen and helium,
First electrically-controlled valve and first flowmeter are installed on oxygen feeding tube, into the second electrically-controlled valve and second flowmeter is installed on helium tube, controlled
Device is adjusted the valve opening of electrically-controlled valve according to the data of flowmeter, accurately adjusts the proportion of two kinds of gas；Third, the 4th
The automatically controlled gaseous mixture dosage for controlling two cabins respectively, controller is according to air pressure size in patient's quantity in cabin and cabin, to third
It is carried out automatically controlling with the 4th electrically-controlled valve.As it can be seen that realizing the automatic feeding to positive/negative-pressure oxygen cabin by the air supply system, lead to
It crosses acquisition transducing signal and closed-loop control is carried out to each electrically-controlled valve, manipulation is more convenient, and stable gas pressure is reliable in cabin, the mixing of helium carrier of oxygen
It is accurate in scale, it ensure that the therapeutic effect in oxygen cabin.
In specifically used, according to conditions of patients needs, flow of oxygen is few under normal conditions, and helium dosage is more, two kinds of gases
It can be uniformly mixed and directly affect therapeutic effect.For the specific structure of helium oxygen blending tank comprising vertically arranged hollow tank
Body, tank body top end wall are internally connected with the upper casing extended straight down, and upper casing extends close to the position of tank body bottom end
Place's cut-off, tank body base end wall are internally connected with the setting of casing extended straight up, and cased internal diameter is greater than the outer of upper casing
Diameter, setting of casing extends close to be ended at the position on tank body top；Oxygen feeding tube is connected on tank body top end wall, the inner end of oxygen feeding tube
Portion protrudes into casing and ends at the position close to tank body top；It is connected in tank body base end wall into helium tube, into helium tube
Inner end is protruded into tank body and is extended upwardly into casing until ending at the position of oxygen feeding tube inner end；The side wall of tank body
On open up mixed gas outlet, in order to increase the length of gas flow paths, mixed gas outlet is provided with close to helium oxygen blending tank bottom
On the position in portion.
It oxygen feeding tube and is oppositely arranged into the inner end of helium tube, can mutually dispel air inlet and is mixed in upper casing, on
Annular compartment is formed between sleeve outer wall and inside pipe wall of trapping, traps and also forms annular compartment between pipe outer wall and inner tank wall,
Two annular compartments are connected to and are formed the gas passage of detour, can be by the more uniform of two gas mixings, and mixed gas is by tank body bottom
The mixed gas outlet in portion flows out.The tank structure is simple, and it is convenient to realize, ensure that the mixed effect of helium carrier of oxygen.
Mixture output tube is connected between the outlet of the helium oxygen blending tank and the import of surge tank, on mixture output tube
It is parallel with sampling pipe, the 7th electrically-controlled valve, third flowmeter and oxygen analyser is installed on sampling pipe, third flowmeter and oxygen analyser
The control terminal of signal output end and the 7th electrically-controlled valve is electrically connected with the controller.After two kinds of gases are sufficiently mixed in blending tank
It is transported in surge tank by mixture output tube.When the 7th electrically-controlled valve is opened, sub-fraction gaseous mixture enters sampling pipe, warp
Oxygen concentration test is carried out by oxygen analyser, wherein the 7th electrically-controlled valve plays the role of controlling gas sampled on-off, third flowmeter
With the 7th electrically-controlled valve mating reaction, play the role of accurately controlling gas flow in sampling pipe.The oxygen content number of oxygen analyser measurement
It shows according to by the display screen on controller, is observed convenient for operator, adjustment oxygen supply in time does not guarantee mixture for helium amount at that time
In required air range.Meanwhile using the bound of the settable oxygen concentration of oxygen analyser, an electric signal control helium is exported
Supply opens or closes.In addition, just in case when operator's misoperation or other reasons cause oxygen concentration to reach lower limit, for helium
Electrically-controlled valve will close in time, guarantee helium in controlled range, when oxygen content reaches critical field, open for the automatically controlled of helium
Valve continues for helium.
The person-computer union and combined aural and visual alarm being electrically connected with the controller are installed in the control platform.It is arranged man-machine
Interface touch screen, the person's of being more convenient to operate manipulation, setting combined aural and visual alarm can be carried out in gas pressure or not normal gas concentration
Alarm.
In conclusion the utility model has, structure is simple, manipulation is convenient, gas mixing effect is good, cabin pressure is stablized
Reliable advantage.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
Fig. 1 is the principle schematic diagram of the utility model；
Fig. 2 is the concrete structure schematic diagram of helium oxygen blending tank in the utility model.
Specific embodiment
Referring to attached drawing, the helium oxygen mixing automatic feeding system of the utility model includes that medical oxygen cabinet, vacuum pump 1 and control are flat
Platform, medical oxygen cabinet are divided into positive ballasting 2 and negative pressure cab 3, vacuum pump 1 respectively by positive ballasting air intake duct 4 and negative pressure cab air intake duct 5 with
Positive and negative ballasting connection, the control terminal of control platform built-in controller 6, vacuum pump 1 are electrically connected with controller 6, and the air supply system is also
Oxygen feeding tube 9 is connected including helium oxygen blending tank 7, surge tank 8, on helium oxygen blending tank 7 and into helium tube 10, installs first on oxygen feeding tube 9
Electrically-controlled valve K1 and first flowmeter L1, into helium tube 10 on the second electrically-controlled valve K2 and second flowmeter L2 is installed, helium oxygen blending tank 7
Outlet is connect with the import of surge tank 8, and a positive ballasting air supply pipe 11 and a negative pressure cab gas supply are drawn in the outlet of surge tank 8
Pipe 12 installs third electrically-controlled valve K3 on positive ballasting air supply pipe 11, installs the 4th electrically-controlled valve K4 on negative pressure cab air supply pipe 12；Positive ballasting
Oxygen concentration sensor 13 and baroceptor 14 are mounted in 2 and in negative pressure cab 3；Positive ballasting air intake duct 4 and negative pressure cab are inhaled
5th electrically-controlled valve K5 and the 6th electrically-controlled valve K6 is installed respectively on tracheae 5；The signal output end of each flowmeter and each sensor and
The control terminal of each electrically-controlled valve is electrically connected with controller 6.
It is pressed gas due to being passed through the indoor gas in cabin in above structure, by baroceptor 14, controller 6
Vacuum pump 1 and the five, the 6th two electrically-controlled valves are controlled, the pressure in two cabins are adjusted, to guarantee cabin room pressure
Stablize, especially negative pressure cab, due to the corresponding height above sea level of each air pressure, passes through the stable a certain sea of air pressure adjustment analog
Degree of lifting, so as to carry out adaptation to high altitude training or test to tester.In order to realize the automatic mixing of oxygen and helium,
First electrically-controlled valve K1 and first flowmeter L1 is installed on oxygen feeding tube 9, into installing the second electrically-controlled valve K2 and second on helium tube 10
Flowmeter L2, controller 6 are adjusted the valve opening of electrically-controlled valve according to the data of flowmeter, accurate two kinds of gases of adjusting
Proportion.Third, the 4th automatically controlled gaseous mixture dosage for controlling two cabins respectively, controller 6 is according in cabin in patient's quantity and cabin
Air pressure size carries out automatically controlling the third and fourth electrically-controlled valve.As it can be seen that realizing by the air supply system to positive/negative-pressure oxygen
The automatic feeding in cabin carries out closed-loop control to each electrically-controlled valve by acquisition transducing signal, and manipulation is more convenient, and stable gas pressure can in cabin
It leans on, helium carrier of oxygen mixed proportion is accurate, ensure that the therapeutic effect in oxygen cabin.
In specifically used, oxygen is stored in oxygen container, and helium is stored in storage helium tank, due to medical oxygen cabinet it is generally necessary to big
The oxygen of amount, therefore, storage of higher pressures is in oxygen container usually in a manner of liquid oxygen for oxygen, and helium is since usage amount is smaller,
Therefore, helium can be stored in high pressure gas cylinder.Flow of oxygen is big, and helium dosage is small, and can two kinds of gases be uniformly mixed directly
Influence therapeutic effect.Referring to attached drawing, for the specific structure of helium oxygen blending tank 7 comprising vertically arranged hollow tank body 71, tank
Body top end wall is internally connected with the upper casing 72 extended straight down, and upper casing 72 extends close at the position of tank body bottom end
Cut-off, tank body base end wall are internally connected with the setting of casing 73 extended straight up, and the internal diameter of setting of casing 73 is greater than upper casing 72
Outer diameter, setting of casing 73 extends close to be ended at the position on tank body top；Oxygen feeding tube 9 is connected on tank body top end wall, into oxygen
The inner end of pipe 9 protrudes into casing 72 and ends at the position close to tank body top；Tank body bottom end is connected into helium tube 10
On wall, the inner end into helium tube 10 is protruded into tank body and is extended upwardly into upper casing 72 until close to the position of 9 inner end of oxygen feeding tube
Set place's cut-off；Mixed gas outlet 74 is opened up on the side wall of tank body, in order to increase the length of gas flow paths, mixed gas outlet 74
It is provided on the position of 7 bottom of helium oxygen blending tank.
As shown, oxygen feeding tube 9 and the inner end into helium tube 10 are oppositely arranged, mutually air inlet can be dispelled and in upper set
Mixing, forms annular compartment in pipe between upper 72 outer wall of casing and 73 inner wall of setting of casing, 73 outer wall of setting of casing and inner tank wall it
Between also form annular compartment, two annular compartments are connected to and are formed the gas passage of detour, can by the more uniform of two gas mixings,
Mixed gas is flowed out by the mixed gas outlet of tank base.The tank structure is simple, and it is convenient to realize, ensure that the mixed of helium carrier of oxygen
Close effect.
Referring to attached drawing, mixture output tube 15, mixing are connected between the outlet of helium oxygen blending tank 7 and the import of surge tank 8
It is parallel with sampling pipe 16 on gas efferent duct 15, the 7th electrically-controlled valve K7, third flowmeter L3 and oxygen analyser are installed on sampling pipe 16
The control terminal of the signal output end and the 7th electrically-controlled valve K7 of 17, third flowmeter L3 and oxygen analyser 17 is electrically connected with controller
It connects.Two kinds of gases are transported in surge tank 8 after being sufficiently mixed in blending tank by mixture output tube 15.When the 7th electrically-controlled valve
When K7 is opened, sub-fraction mixed gas enters sampling pipe 16, carries out oxygen concentration test via oxygen analyser 17, wherein the 7th electricity
Control valve K7 plays the role of controlling gas sampled on-off, third flowmeter L3 and the 7th electrically-controlled valve K7 mating reaction, plays accurate
Control the effect of gas flow in sampling pipe.The oxygen content data that oxygen analyser 17 measures are shown by the display screen on controller 6,
Convenient for operator's observation, adjustment oxygen supply in time at that time does not guarantee mixture in required air range for helium amount.Meanwhile it utilizing
The bound of the settable oxygen concentration of oxygen analyser 16 exports opening or closing for an electric signal control helium supply.In addition, ten thousand
It when one operator's misoperation or other reasons cause oxygen concentration to reach lower limit, will close, guarantee in time for the electrically-controlled valve of helium
Helium is in controlled range, and when oxygen content reaches critical field, the electrically-controlled valve opened for helium continues for helium.
Referring to attached drawing, the person-computer union 18 and combined aural and visual alarm being electrically connected with controller 6 are installed in control platform
19.Person-computer union 18 is set, and combined aural and visual alarm 19 is arranged in the person's of being more convenient to operate manipulation, dense in gas pressure or gas
When spending not normal, it can alarm.
In conclusion the utility model is not limited to above-mentioned specific embodiment.Those skilled in the art are not departing from this reality
Under the premise of with novel spirit and scope, several change or modification can be done.It is practical that above-mentioned change or modification each fall within book
Novel protection scope.
Claims (6)
1. a kind of helium oxygen mixing automatic feeding system, including medical oxygen cabinet, vacuum pump (1) and control platform, medical oxygen cabinet are divided into
Positive ballasting (2) and negative pressure cab (3), vacuum pump (1) respectively by positive ballasting air intake duct (4) and negative pressure cab air intake duct (5) with it is positive and negative
Ballasting connection, the control terminal of control platform built-in controller (6), vacuum pump (1) are electrically connected with controller (6), it is characterized in that should
Air supply system further includes helium oxygen blending tank (7) and surge tank (8), oxygen feeding tube (9) is connected on helium oxygen blending tank (7) and into helium tube
(10), the first electrically-controlled valve (K1) and first flowmeter (L1) are installed on oxygen feeding tube (9), into helium tube (10) on the second electrically-controlled valve is installed
(K2) it is connect with second flowmeter (L2), the outlet of helium oxygen blending tank (7) with the import of surge tank (8), the outlet of surge tank (8)
One positive ballasting air supply pipe (11) of upper extraction and a negative pressure cab air supply pipe (12), installation third electricity on positive ballasting air supply pipe (11)
It controls valve (K3), the 4th electrically-controlled valve (K4) is installed on negative pressure cab air supply pipe (12)；It is respectively mounted in positive ballasting (2) and in negative pressure cab (3)
There are oxygen concentration sensor (13) and baroceptor (14)；Pacify respectively on positive ballasting air intake duct (4) and negative pressure cab air intake duct (5)
Fill the 5th electrically-controlled valve (K5) and the 6th electrically-controlled valve (K6)；The signal output end and each electrically-controlled valve of each flowmeter and each sensor
Control terminal is electrically connected with controller (6).
2. helium oxygen mixing automatic feeding system as described in claim 1, it is characterized in that the helium oxygen blending tank (7) includes vertical
The hollow tank body (71) being arranged, tank body top end wall are internally connected with the upper casing (72) extended straight down, upper casing (72)
It extends close to and ends at the position of tank body bottom end, tank body base end wall is internally connected with the setting of casing extended straight up
(73), the internal diameter of setting of casing (73) is greater than the outer diameter of upper casing (72), and setting of casing (73) extends close to the position on tank body top
Place's cut-off；Oxygen feeding tube (9) is connected on tank body top end wall, and the inner end of oxygen feeding tube (9) protrudes into casing (72) and close
End at the position on tank body top；It is connected in tank body base end wall into helium tube (10), the inner end into helium tube (10) protrudes into tank body
It is interior and extend upwardly into casing (72) until ending at the position of oxygen feeding tube (9) inner end；It is opened up on the side wall of tank body
Mixed gas outlet (74).
3. helium oxygen mixing automatic feeding system as claimed in claim 2, it is characterized in that the mixed gas outlet (74) is close to helium
The bottom of oxygen blending tank (7).
4. helium oxygen mixing automatic feeding system as described in claim 1, it is characterized in that the outlet of the helium oxygen blending tank (7) with
Mixture output tube (15) are connected between the import of surge tank (8), sampling pipe (16) is parallel on mixture output tube (15), adopts
7th electrically-controlled valve (K7), third flowmeter (L3) and oxygen analyser (17), third flowmeter (L3) and survey are installed on sample pipe (16)
The control terminal of the signal output end of oxygen instrument (17) and the 7th electrically-controlled valve (K7) is electrically connected with the controller.
5. helium oxygen mixing automatic feeding system as described in claim 1, it is characterized in that installation and control in the control platform
The person-computer union (18) of device (6) electrical connection.
6. helium oxygen mixing automatic feeding system as described in claim 1, it is characterized in that being equipped with and controlling in the control platform
The combined aural and visual alarm (19) of device (6) electrical connection processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413067.3U CN208388912U (en) | 2017-10-30 | 2017-10-30 | A kind of helium oxygen mixing automatic feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413067.3U CN208388912U (en) | 2017-10-30 | 2017-10-30 | A kind of helium oxygen mixing automatic feeding system |
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| Publication Number | Publication Date |
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| CN208388912U true CN208388912U (en) | 2019-01-18 |
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| CN201721413067.3U Active CN208388912U (en) | 2017-10-30 | 2017-10-30 | A kind of helium oxygen mixing automatic feeding system |
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| CN (1) | CN208388912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714358A (en) * | 2017-10-30 | 2018-02-23 | 潍坊潍医医院 | A kind of helium oxygen mixing automatic feeding system |
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2017
- 2017-10-30 CN CN201721413067.3U patent/CN208388912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714358A (en) * | 2017-10-30 | 2018-02-23 | 潍坊潍医医院 | A kind of helium oxygen mixing automatic feeding system |
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Address after: Weifang City, Shandong province 261000 Yuanfei road Kuiwei District No. 360 building 3 Patentee after: Weifang Weien hospital Address before: Weifang City, Shandong province 261000 Yuanfei road Kuiwei District No. 360 building 3 Patentee before: WEIFANG MEDICAL Hospital |