CN208525602U - Gas circuit structure, gas flow adjusting means and the ventilator with the device - Google Patents
Gas circuit structure, gas flow adjusting means and the ventilator with the device Download PDFInfo
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- CN208525602U CN208525602U CN201820221129.9U CN201820221129U CN208525602U CN 208525602 U CN208525602 U CN 208525602U CN 201820221129 U CN201820221129 U CN 201820221129U CN 208525602 U CN208525602 U CN 208525602U
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Abstract
It includes: the first air inlet, first filter, pressure regulator valve, cavity, proportioning valve, the second filter and flow sensor that the utility model, which provides a kind of gas circuit structure, gas flow adjusting means and the ventilator with the device, the gas circuit structure,；First air inlet, the first filter, the pressure regulator valve, the cavity, the proportioning valve, second filter and the flow sensor are sequentially connected.The utility model increases pressure regulator valve and cavity in the front end of proportioning valve, gas passes through pressure regulator valve pressure regulation, it reduces gas pressure and stablizes in setting range, the presence of cavity can weaken the air-flow vibration of the air inlet of proportioning valve, further stabilize the pressure of gas, to which the performance of the performance for proportioning valve and the accurate control of proportioning valve provide a great convenience, the requirement of comparative example valve performance is reduced while guaranteeing gas flow accuracy controlling, to reduce equipment cost.
Description
Technical field
The utility model relates to medical instruments field more particularly to a kind of gas circuit structures, gas flow adjusting means and tool
There is the ventilator of the device.
Background technique
Effective means of the ventilator as an energy artificial substituting expiratory positive airway pressure function, has been commonly used to caused by a variety of causes
Respiratory failure, the anesthesia respiration management during major operation, in Breathing Suppotion treatment and emergency resuscitation, accounted in Modern Medical Field
There is highly important position.
Current most ventilator by proportioning valve adjusting gas flow, in order to obtain particular flow rate gas (such as
The gases such as oxygen, laughing gas), comparative example valve it is more demanding, so that cost be made to increase.
Utility model content
In order to solve the technical problems existing in the prior art, the utility model provides a kind of gas circuit structure, gas stream
Quantity regulating device and ventilator with the device.Equipment cost is reduced while aiming to gas flow accuracy controlling.
A kind of gas circuit structure, comprising: the first air inlet, first filter, pressure regulator valve, cavity, proportioning valve, the second filter
And flow sensor；
First air inlet is connect with the first gas source；
The first filter is disposed proximate to first air inlet, for filtering from first air inlet entrance
Gas；
The pressure regulator valve is used to adjust the pressure of filtered gas；
The cavity is arranged between the pressure regulator valve and the proportioning valve, for storing the gas outlet of the pressure regulator valve
Gas；
The proportioning valve is used to adjust the pressure of the gas of the first gas outlet of the cavity；
The air inlet of the flow sensor is arranged in second filter, for filter the flow sensor into
The gas of port；
The flow sensor, the flow of the gas of the gas outlet for detecting the proportioning valve.
The gas outlet of the flow sensor and the air inlet of blower connect.
First gas source is hyperbaric oxygen gas source.
The gas circuit structure further includes needle-valve and switch valve, the second gas outlet of the air inlet of the needle-valve and the cavity
Connection, the gas outlet of the needle-valve are connect with the air inlet of the switch valve, and the gas outlet of the switch valve and atomization interface connect
It connects.
The gas outlet of the switch valve is provided with the first slotting angle coupling fastly, and the gas outlet of the switch valve passes through described the
One inserts angle coupling fastly connect with the atomization interface.
The gas circuit structure further includes the second air inlet, and one end of second air inlet is connect with the second gas source, described
The other end of second air inlet is connect with flow sensor.
Second gas source is Low Pressure Oxygen gas source.
Second air inlet is provided with second and inserts direct connector fastly, and second air inlet is fast slotting straight by described second
Angle joint is connect with second gas source.
A kind of gas flow adjusting means, including above-mentioned gas circuit structure.
A kind of ventilator, including above-mentioned gas flow regulator.
A kind of gas circuit structure, gas flow adjusting means and the ventilator with the device provided by the utility model, institute
Stating gas circuit structure includes: the first air inlet, first filter, pressure regulator valve, cavity, proportioning valve, the second filter and flow sensing
Device；First air inlet is connect with the first gas source；The first filter is disposed proximate to first air inlet, is used for
Filter the gas entered from first air inlet；The pressure regulator valve is used to adjust the pressure of filtered gas；The cavity is set
It sets between the pressure regulator valve and the proportioning valve, the gas of the gas outlet for storing the pressure regulator valve；The proportioning valve is used
In the pressure of the gas for the first gas outlet for adjusting the cavity；Second filter be arranged in the flow sensor into
Port, the gas of the air inlet for filtering the flow sensor；The flow sensor is connect with the proportioning valve, is used for
Detect the flow of the gas of the gas outlet of the proportioning valve.The front end of the utility model proportioning valve in gas circuit structure increases pressure regulation
Valve and cavity, gas pass through pressure regulator valve pressure regulation, reduce gas pressure and stablize in setting range, go out from the gas outlet of pressure regulator valve
The gas come enters back into the air inlet of proportioning valve by cavity, and the presence of cavity can weaken the air-flow shake of the air inlet of proportioning valve
It is dynamic, the pressure of gas is further stabilized, to provide pole for the performance of the performance of proportioning valve and the accurate control of proportioning valve
Big convenience reduces the requirement of comparative example valve performance while guaranteeing gas flow accuracy controlling, to reduce costs.
Detailed description of the invention
Fig. 1 is the schematic diagram of the gas circuit structure of one embodiment；
Fig. 2 is the stereoscopic schematic diagram of the gas flow adjusting means of one embodiment；
Fig. 3 is a sectional stereogram of gas flow adjusting means in Fig. 2；
Fig. 4 is another sectional stereogram of gas flow adjusting means in Fig. 2；
Description of symbols:
Gas flow adjusting means 10；
Gas circuit structure 100；
First air inlet 101；First filter 102；Pressure regulator valve 103；Cavity 104；Proportioning valve 105；Second filter
106；Flow sensor 107；Needle-valve 108；Switch valve 109；First inserts angle coupling 110 fastly；Second air inlet 111；Second is fast
Insert angle coupling 112；
The entrance A of NIST connector；The air inlet B of pressure regulator valve；The gas outlet C of pressure regulator valve；First gas outlet D of cavity；Hold
Second gas outlet E of chamber；The air inlet F of needle-valve；The gas outlet G of needle-valve；The air inlet H of switch valve；The gas outlet W of switch valve；
The air inlet J of first fast slotting angle coupling；The gas outlet K of first fast slotting angle coupling；The air inlet L of proportioning valve；Proportioning valve
Gas outlet M；The air inlet N of flow sensor；The gas outlet O of flow sensor；The air inlet P of second fast slotting angle coupling；The
The gas outlet Q of two fast slotting angle couplings；
First gas source 200；
Fan air inlet 300；
Second gas source 400；
It is atomized interface 500；
Check valve 600.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
A kind of gas circuit structure provided by the utility model and the gas comprising the gas circuit structure are described in detail with reference to the accompanying drawings
Body flow regulator.
As shown in Figure 1, according to the gas circuit structure 100 of the utility model embodiment, comprising: the first air inlet 101(is in Fig. 1
In be not shown), first filter 102, pressure regulator valve 103, cavity 104, proportioning valve 105, the second filter 106 and flow sensor
107；First air inlet 101 is connect with the first gas source 200；First filter 102 is disposed proximate to the first air inlet 101, is used for
Filter the gas entered from the first air inlet 101；Pressure regulator valve 103 is used to adjust the pressure of filtered gas；Cavity 104 is arranged
Between pressure regulator valve 103 and proportioning valve 105, the gas outlet C(for storing pressure regulator valve is not shown in Fig. 1) gas；Ratio
Valve 105 is used to adjust the first gas outlet D(of cavity and be not shown in Fig. 1) gas pressure；The setting of second filter 106 exists
The air inlet N(of flow sensor is not shown in Fig. 1) at, the gas of the air inlet N for filtering traffic sensor；Flow passes
Sensor 107, the gas outlet M(for detection ratio valve are not shown in Fig. 1) gas flow.
Specifically, the first air inlet 101 is connect with the first gas source 200, and the first air inlet 101 is equipped in the present embodiment
NIST(Non-Interchangeable screw-threaded) connector (special screw thread standard connector) is (such as Fig. 2 to Fig. 4 institute
Show), the first air inlet 101 connects the first gas source 200 by NIST connector, and the first gas source 200 can be high pressure oxygen source, high pressure
Air-source or high pressure laughing gas source etc., in the present embodiment, the first gas source 200 is hyperbaric oxygen gas source.The setting of first filter 102 exists
The rear end of first air inlet 101, and be disposed proximate to the first air inlet 101, first filter 102 is for filtering from the first air inlet
Mouthfuls 101 gases entered, in the present embodiment, first filter is sintered copper filter, and sintered copper filter is by copper alloy powder
High temperature sintering forms, and filtering accuracy is high, good permeability, high mechanical strength, and stock utilization is high.Pressure regulator valve 103 was for adjusting
The pressure of gas after filter makes gas stablize the aperture phase of the range of pressure values and pressure regulator valve in certain range of pressure values
It closes, can according to need the pressure limit for presetting the aperture of pressure regulator valve and then reaching the gas of needs.It is high in the present embodiment
Press source of oxygen oxygen pressure be 280 kpa to 600kpa, after pressure regulator valve, oxygen pressure stablize 170kpa extremely
250kpa.Cavity 104 is the cavity with certain volume, is arranged between pressure regulator valve 103 and proportioning valve 105, from pressure regulator valve 103
Gas out reaches proportioning valve 105 by cavity 104 again, and cavity 104 reduces the vibration of gas, further stabilizes gas
Pressure, gas reach proportioning valve 105, by proportioning valve 105 by gas flow adjust to setting value, come out from proportioning valve 105
Setting flow gas, it is as shown in Figure 4 by the air inlet N(of the second filter 106 and flow sensor), flow sensor
The flow of 107 detection gas, when the flow of gas reaches setting value, gas comes out from the gas outlet O of flow sensor, flow
The gas outlet O of sensor is connect with fan air inlet, and gas enters fan air inlet.Setting value identical for gas flow,
By gas circuit structure provided by the utility model, gas gas pressure before entering proportioning valve is lowered and stablizes, to drop
The low performance requirement of comparative example valve, thereby reduces equipment cost.
In some embodiments, gas circuit structure 100 further includes needle-valve 108 and switch valve 109, the air inlet F and appearance of needle-valve
Second gas outlet E connection of chamber, the air inlet H connection of the gas outlet G and switch valve of needle-valve, the gas outlet W of switch valve and atomization
Interface 500 connects.Specifically, gas comes out from the second gas outlet E of cavity, enters needle-valve 108 from the air inlet F of needle-valve, leads to
Overregulate the aperture of needle-valve 108 to control the uninterrupted of gas, gas comes out from the gas outlet G of needle-valve, from switch valve into
Port H access switch valve 109, switch valve 109 control the on-off of time branch, and when switch valve 109 is opened, gas is from switch valve
Gas outlet W comes out and flows into atomization interface 500, provides the gas of particular flow rate needed for atomization for patient.Further, it switchs
It is as shown in Figure 2 that the gas outlet W of valve is provided with the first fast slotting angle coupling 110(), the gas outlet W of switch valve is inserted directly fastly by first
Angle joint 110 is connect with atomization interface.Specifically, gas comes out from the gas outlet W of switch valve, from the first fast slotting angle coupling
Air inlet J enters first and inserts angle coupling 110 fastly, then comes out from the gas outlet K of the first fast slotting angle coupling and enter atomization and connect
Mouth 500.
In some embodiments, gas circuit structure 100 further includes the second air inlet 111, one end of the second air inlet and second
Gas source 400 connects, and the other end of the second air inlet is connect with flow sensor 107.Further, the second gas source 400 is low pressure
Source of oxygen.Specifically, when no hyperbaric oxygen gas source, low oxygen enters the second air inlet 111 by one end of the second air inlet, from
The other end of second air inlet flows out into flow sensor 107, and low oxygen is flowed out into from flow sensor 107 again
Check valve 600 can be set between the second air inlet 111 and the second gas source 400, for controlling the branch in fan air inlet 300
The on-off of gas circuit.Second can be set at the second air inlet 111, and slotting angle coupling 112, the second gas source 400 pass through check valve fastly
600, angle coupling 112 is inserted fastly by second, into the second air inlet 111.
Fig. 2 to Fig. 4 is a kind of gas flow adjusting means 10 comprising above-mentioned gas circuit structure provided by the utility model.It should
Gas flow adjusting means 10 further include driving circuit and controller.Controller, driving circuit, proportioning valve, flow sensor according to
Secondary connection, and controller is bi-directionally connected with driving circuit, controller is connected with flow sensor；Flow sensor, driving circuit
A double closed-loop control system based on flow, current feedback can be formed by gas flow, current feedback to controller respectively,
Realize the control of comparative example valve.
Referring to gas flow adjusting means adjusting gas flow of Fig. 2 to Fig. 4 description comprising above-mentioned gas circuit structure
Process.The gas of first gas source is entered by the entrance A of NIST connector, enters air flue by the filtering of first filter 102, from tune
After the air inlet B of pressure valve enters pressure regulator valve 103, pressure regulation is carried out by pressure regulator valve 103, is then entered from the gas outlet C of pressure regulator valve
Cavity 104, the presence of cavity 104 can weaken the vibration of air-flow at the air inlet L of proportioning valve, thus further stabilizing gas
Pressure, gas are two branches in cavity punishment, and a branch is gone out, from the first gas outlet D of cavity by the air inlet of proportioning valve
Mouth L, into proportioning valve 105, controller exports a control amount to driving circuit, and driving circuit controls ratio after amplifying signal
The output of the flow of 105 regulating gas of valve, gas is after the adjusting of proportioning valve 105, after the gas outlet M of proportioning valve output adjusting
Flow gas, the gas of the flow after adjusting enters flow sensor 107, flow by the air inlet N of flow sensor
The flow value of the acquisition output of sensor 107 is simultaneously fed back to controller, meanwhile, it, can in order to accelerate the adjustment speed of proportioning valve 103
Target flow is rapidly reached, driving circuit will control current feedback to controller, real gas flow of the controller to feedback
Handled with the electric current of feedback, then export control amount to driving circuit, realize it is accurate to gas flow, rapidly adjust and
Control, when gas flow reaches target flow, the gas of target flow is flowed out from the gas outlet O of flow sensor, passes through wind
Machine air inlet 300 enters blower；Another branch is gone out, from the second gas outlet E of cavity by the air inlet F of needle-valve, into needle
Valve 108, needle-valve 108 are a tapered openings, can control the air-flow size of gas by the aperture of metering pin valve, gas from
The gas outlet G of needle-valve comes out, and from the air inlet H access switch valve 109 of switch valve, switch valve 109 is used to control the logical of this branch
Disconnected, when switch valve 109 is opened, the air inlet J that gas passes through the first fast slotting angle coupling from the gas outlet W of switch valve out enters
First inserts angle coupling 110 fastly, and first inserts the connection atomization interface 500 of angle coupling 110 fastly, provides required for atomization for patient
Gas flow.When in special circumstances, without the first gas source hyperbaric oxygen gas source, it can be inserted directly by the way that second at the second air inlet 111 is fast
Angle joint connects Low Pressure Oxygen gas source, the low oxygen of Low Pressure Oxygen gas source by check valve 600, through the second fast slotting angle coupling into
Port P enters second and inserts angle coupling 110 fastly, comes out from the gas outlet Q of the second fast slotting angle coupling, into flow sensor
Air inlet N, then Low Pressure Oxygen air-flow is exported from the gas outlet Q of flow sensor.
A kind of gas circuit structure provided by the utility model and the gas flow adjusting means comprising the gas circuit structure, by
The front end of proportioning valve increases pressure regulator valve and cavity, and gas passes through pressure regulator valve pressure regulation, reduces gas pressure and stablizes in setting model
It encloses, the gas come out from the gas outlet of pressure regulator valve enters back into the air inlet of proportioning valve by cavity, and the presence of cavity can weaken
The air-flow of the air inlet of proportioning valve shakes, and further stabilizes the pressure of gas, thus performance and ratio for the performance of proportioning valve
The accurate control of example valve provides a great convenience, and reduces comparative example valve performance while guaranteeing gas flow accuracy controlling
Requirement, to reduce equipment cost.Increase needle-valve and switch valve in gas circuit, needle-valve and switch valve pass through the first fast slotting right angle
Connector is connect with atomization interface, gas needed for atomization can be provided for patient；The gas circuit structure passes through the second slotting heading joint fastly
Head is connect with check valve and the second gas source, and required second gas can be provided for patient.
Ventilator provided by the utility model, including gas flow adjusting means provided by the utility model.
Ventilator with above-mentioned gas flow regulator, can be by the first gas by pressure regulator valve, cavity and proportioning valve
The gas in source is converted into pressure and stablizes, and flux controllable gas is handled for ventilator subsequent module.With above-mentioned gas
The needle-valve and switch valve of the ventilator of flow regulator are inserted angle coupling by first fastly and are connect with atomization interface, and patient is facilitated
Atomization medicine treatment is carried out by ventilator.Under special circumstances, the second gas source low pressure source of oxygen can also be accessed, is supplied for patient
Oxygen.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, those skilled in the art can incite somebody to action
Different embodiments or examples described in this specification are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of gas circuit structure characterized by comprising the first air inlet, first filter, pressure regulator valve, appearance
Chamber, proportioning valve, the second filter and flow sensor；
First air inlet is connect with the first gas source；
The first filter is disposed proximate to first air inlet, for filtering the gas entered from first air inlet
Body；
The pressure regulator valve is used to adjust the pressure of filtered gas；
The cavity is arranged between the pressure regulator valve and the proportioning valve, the gas of the gas outlet for storing the pressure regulator valve
Body；
The proportioning valve is used to adjust the pressure of the gas of the first gas outlet of the cavity；
The air inlet of the flow sensor is arranged in second filter, for filtering the air inlet of the flow sensor
Gas；
The flow sensor, the flow of the gas of the gas outlet for detecting the proportioning valve.
2. gas circuit structure according to claim 1, which is characterized in that the gas outlet of the flow sensor with
The air inlet of blower connects.
3. gas circuit structure according to claim 1, which is characterized in that first gas source is hyperbaric oxygen gas source.
4. gas circuit structure according to claim 1, which is characterized in that further include needle-valve and switch valve, the needle-valve into
Port is connect with the second gas outlet of the cavity, and the gas outlet of the needle-valve is connect with the air inlet of the switch valve, described
The gas outlet of switch valve is connect with atomization interface.
5. gas circuit structure according to claim 4, which is characterized in that it is fast slotting that the gas outlet of the switch valve is provided with first
Angle coupling, the gas outlet of the switch valve are inserted angle coupling by described first fastly and are connect with the atomization interface.
6. gas circuit structure according to claim 1, which is characterized in that it further include the second air inlet, second air inlet
One end connect with the second gas source, the other end of second air inlet is connect with flow sensor.
7. gas circuit structure according to claim 6, which is characterized in that second gas source is Low Pressure Oxygen gas source.
8. gas circuit structure according to claim 6, which is characterized in that it is fast slotting direct that second air inlet is provided with second
Connector, second air inlet are inserted angle coupling by described second fastly and are connect with second gas source.
9. a kind of gas flow adjusting means, which is characterized in that including gas circuit knot described in any one of claim 1-8
Structure.
10. a kind of ventilator, which is characterized in that including gas flow adjusting means as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221129.9U CN208525602U (en) | 2018-02-08 | 2018-02-08 | Gas circuit structure, gas flow adjusting means and the ventilator with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221129.9U CN208525602U (en) | 2018-02-08 | 2018-02-08 | Gas circuit structure, gas flow adjusting means and the ventilator with the device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208525602U true CN208525602U (en) | 2019-02-22 |
Family
ID=65399507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820221129.9U Active CN208525602U (en) | 2018-02-08 | 2018-02-08 | Gas circuit structure, gas flow adjusting means and the ventilator with the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208525602U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721673A (en) * | 2021-08-31 | 2021-11-30 | 北京七星华创流量计有限公司 | Gas mass flow control method and device |
| CN114034472A (en) * | 2021-06-09 | 2022-02-11 | 上海智能新能源汽车科创功能平台有限公司 | Construction method of test flow channel of air compressor equipment |
| CN113721673B (en) * | 2021-08-31 | 2024-05-10 | 北京七星华创流量计有限公司 | Gas mass flow control method and device |
-
2018
- 2018-02-08 CN CN201820221129.9U patent/CN208525602U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034472A (en) * | 2021-06-09 | 2022-02-11 | 上海智能新能源汽车科创功能平台有限公司 | Construction method of test flow channel of air compressor equipment |
| CN113721673A (en) * | 2021-08-31 | 2021-11-30 | 北京七星华创流量计有限公司 | Gas mass flow control method and device |
| CN113721673B (en) * | 2021-08-31 | 2024-05-10 | 北京七星华创流量计有限公司 | Gas mass flow control method and device |
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