CN217187307U - Atomizing air supply module with stable pressure and flow - Google Patents
Atomizing air supply module with stable pressure and flow Download PDFInfo
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- CN217187307U CN217187307U CN202123314786.9U CN202123314786U CN217187307U CN 217187307 U CN217187307 U CN 217187307U CN 202123314786 U CN202123314786 U CN 202123314786U CN 217187307 U CN217187307 U CN 217187307U
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Abstract
An atomization gas supply module with stable pressure and flow comprises an atomization gas path, and a gas pressure reducing valve, a solenoid valve, a pressure reducing component and a throttling hole which are sequentially connected in series on the atomization gas path in the direction of gas flow; the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer; the electromagnetic valve is electrically connected with the control circuit, and the control circuit sends a switching signal to control the electromagnetic valve to open or close the atomization gas path of the atomizer. The utility model discloses a set up pressure reducing assembly on atomizing gas way, atomizing pressure, the problem that the flow reduces when having solved current breathing machine oxygen flow increase can guarantee to get into the gas pressure and the flow stability of atomizer, and then guarantee the atomization efficiency of liquid, and the liquid granularity after the atomizing is littleer, helps the suspension, and then helps the patient to inhale, has solved among the prior art because of the too big problem of the atomization effect that causes of preceding stage pressure fluctuation.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to atomizing air feed module of pressure and stable flow, this module can be applied to the breathing machine of taking the atomizing function or directly be applied to the atomizer.
Background
The aerosol therapy mainly refers to aerosol inhalation therapy. Aerosol refers to fine solid or liquid particles suspended in air. Therefore, the aerosol inhalation therapy is to disperse the medicine into tiny droplets or particles by using an atomization device, suspend the tiny droplets or particles in the air, and enable the tiny droplets or particles to enter a breathing passage and lungs so as to achieve the purposes of humidifying the air passage and treating respiratory tract inflammation.
Taking a respirator with an atomizing function as an example, the respirator comprises an atomizing unit and an oxygen mixing unit, high-pressure oxygen enters the respirator and then is divided into two branches, the first branch enters an oxygen mixing chamber of the oxygen mixing unit, and the second branch enters an atomizer of the atomizing unit. The above prior art finds the following problems in long-term use:
when the oxygen demand of the oxygen mixing unit rises to cause the oxygen flow of the first branch to increase, the oxygen pressure in the second branch can drop along with the oxygen flow, so that the gas pressure and flow entering the atomizer are unstable, and the problem of poor atomization effect is caused;
secondly, the pressure and the flow demand of different specification atomizers can not be adapted to the existing atomizing unit.
Therefore, the present invention is to solve the above-mentioned deficiencies of the prior art and to provide a solution to the problems.
Disclosure of Invention
The utility model aims at providing a pressure and stable atomizing air feed module of flow.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an atomization gas supply module with stable pressure and flow comprises an atomization gas path, and a gas pressure reducing valve, an electromagnetic valve, a pressure reducing assembly and a throttling hole which are sequentially connected in series on the atomization gas path according to the direction of gas flow; the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer; the electromagnetic valve is electrically connected with a control circuit, and the control circuit sends a switching signal to control the electromagnetic valve to open or close the atomization gas path of the atomizer.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the pressure reduction subassembly includes pressure regulating spring and pressure regulating diaphragm, the pressure regulating spring acts on one side of pressure regulating diaphragm, the section setting of giving vent to anger that the opposite side of pressure regulating diaphragm corresponds a first gas flow channel, and then adjusts the tension that pressure regulating diaphragm applyed through the pressure regulating spring the gas pressure of the section of giving vent to anger in the first gas flow channel.
2. In the above solution, the pressure reducing assembly may also be a second gas pressure reducing valve.
3. In the above solution, the throttle hole includes a second gas flow channel, and the size of the cross section of the second gas flow channel is adjusted by an adjusting mechanism;
the regulating mechanism comprises a valve needle which is provided with a conical head part, the conical head part extends into the second gas flow passage along the length direction of the gas flow passage, and the section size of the gas flow passage is changed through linear displacement.
4. In the above scheme, the second airflow channel includes an inlet section and an outlet section, and the pipe diameter of the outlet section is smaller than that of the inlet section; the conical head extends into the inducer, changing the cross-sectional size of the inducer by linear displacement.
5. In the above solution, the orifice may also be an orifice with a fixed aperture, and the aperture of the orifice is smaller than the diameter of the atomization gas path.
6. In the above scheme, still be equipped with a manometer on the atomizing gas way, this manometer concatenate in gas relief pressure valve with between the solenoid valve, be convenient for observe pressure numerical value.
In order to achieve the above object, the utility model discloses a another technical scheme is:
an atomizing gas supply module with stable pressure and flow comprises an atomizing gas path, a gas pressure reducing valve, a pressure reducing component, an electromagnetic valve and a throttling hole, wherein the gas pressure reducing valve, the pressure reducing component, the electromagnetic valve and the throttling hole are sequentially connected to the atomizing gas path in series according to the direction of gas flow; the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer; the electromagnetic valve is electrically connected with a control circuit, and the control circuit sends out a switching signal to control the electromagnetic valve to open or close the atomization gas circuit of the atomizer.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the pressure reduction subassembly includes pressure regulating spring and pressure regulating diaphragm, the pressure regulating spring acts on one side of pressure regulating diaphragm, the section setting of giving vent to anger that the opposite side of pressure regulating diaphragm corresponds a first gas flow channel, and then adjusts the tension that pressure regulating diaphragm applyed through the pressure regulating spring the gas pressure of the section of giving vent to anger in the first gas flow channel.
2. In the above solution, the pressure reducing component may also be a second gas pressure reducing valve.
3. In the above solution, the throttle hole includes a second gas flow channel, and the size of the cross section of the second gas flow channel is adjusted by an adjusting mechanism;
the adjusting mechanism comprises a valve needle, the valve needle is provided with a conical head part, the conical head part extends into the second gas flow passage along the length direction of the second gas flow passage, and the section size of the second gas flow passage is changed through linear displacement.
4. In the above scheme, the second airflow channel includes an inlet section and an outlet section, and the pipe diameter of the outlet section is smaller than that of the inlet section; the conical head extends into the inducer, changing the cross-sectional size of the inducer by linear displacement.
5. In the above solution, the orifice may also be an orifice with a fixed aperture, and the aperture of the orifice is smaller than the diameter of the atomization gas path.
6. In the above scheme, still be equipped with a manometer on the atomizing gas way, this manometer concatenates gas relief pressure valve with between the solenoid valve, be convenient for observe pressure value.
The utility model discloses a theory of operation and advantage as follows:
the utility model relates to an atomizing gas supply module with stable pressure and flow, which comprises an atomizing gas circuit, and a gas pressure reducing valve, a solenoid valve, a pressure reducing component and a throttling hole which are sequentially connected in series on the atomizing gas circuit according to the direction of gas flow; the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer; the electromagnetic valve is electrically connected with the control circuit, and the control circuit sends a switching signal to control the electromagnetic valve to open or close the atomization gas path of the atomizer.
Compared with the prior art, the utility model has the advantages that:
one, through set up the pressure reducing assembly on atomizing gas way, can guarantee to get into the gas pressure and the flow stability of atomizer, and then guarantee the atomization efficiency of liquid, and the liquid particle size after the atomizing is littleer, helps the suspension, and then helps the patient to inhale, has solved among the prior art because of the too big problem of the atomization effect who causes of preceding stage pressure fluctuation.
And secondly, the orifice is set to be adjustable in aperture, so that the pressure and flow requirements of atomizers with different specifications can be adapted.
Thirdly, the problem that the atomization pressure and the flow are reduced when the oxygen flow of the existing breathing machine is increased is solved, and the basic stability of the output of the pressure and the flow can be realized.
Drawings
Fig. 1 is a structural block diagram of a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of a pressure reducing assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the adjustment of the aperture of a throttle hole according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of adjusting the aperture of a throttle hole according to the first embodiment of the present invention;
fig. 5 is a block diagram of a second embodiment of the present invention.
In the above drawings: A. an atomization gas circuit; 1. a gas pressure reducing valve; 2. an electromagnetic valve; 3. a pressure relief assembly; 4. an orifice; 5. a gas source; 6. an atomizer; 7. a pressure regulating spring; 8. film regulating and pressing; 9. a first gas flow passage; 10. an air outlet section; 11. a second gas flow channel; inlet section 11 a; 11 b. an outlet section; 12. a valve needle; 13. a conical head; 14. a pressure gauge; B. an oxygen mixing gas circuit; 15. an electromagnetic proportional valve; 16. a flow sensor; 17. and an oxygen mixing chamber.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows: the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
The terms "first," "second," and the like, as used herein, are not intended to be limited to a particular order or sequence, nor are they intended to be used to limit the scope of the present disclosure, but only to distinguish components or operations described by the same terms.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
Referring to fig. 1, an atomizing air supply module with stable pressure and flow includes an atomizing air path a, and an air pressure reducing valve 1, an electromagnetic valve 2, a pressure reducing assembly 3, and an orifice 4 connected in series to the atomizing air path a in sequence according to the air flow direction.
The air inlet end of the atomization air path A is communicated with an external air source 5, the air source 5 provides high-pressure oxygen, the aperture of the throttling hole 4 is smaller than or equal to the diameter of the atomization air path A, and the air outlet side of the throttling hole 4 is communicated with the atomizer 6.
The electromagnetic valve 2 is electrically connected with a control circuit, and the control circuit sends out on-off signals to control the electromagnetic valve 2 to open or close the atomization gas path A of the atomizer 6.
As shown in fig. 2, the pressure reducing assembly 3 includes a pressure regulating spring 7 and a pressure regulating diaphragm 8, the pressure regulating spring 7 acts on one side of the pressure regulating diaphragm 8, the other side of the pressure regulating diaphragm 8 corresponds to the air outlet section 10 of a first gas flow channel 9, and the first gas flow channel 9 is communicated with the atomization gas path a. And the gas pressure of the gas outlet section 10 in the first gas flow channel 9 is adjusted by the tension applied to the pressure regulating diaphragm 8 by the pressure regulating spring 7. By means of the design, the pretightening force of the pressure regulating spring 7 can be set or the pressure regulating spring 7 corresponding to the pretightening force can be selected according to the target value of pressure reduction, the gas pressure of the gas outlet section 10 in the first gas flow passage 9 and the pretightening force of the pressure regulating spring 7 realize mechanical balance on the pressure regulating diaphragm 8, the pressure reduction effect is achieved, the pressure at the front end of the throttling hole 4 is further stabilized, and therefore the stability of the gas pressure and the flow at the front end of the atomizer 6 is realized.
Alternatively, the pressure reducing assembly 3 may be a second gas pressure reducing valve.
Preferably, as shown in fig. 3 and 4, the orifice 4 is an orifice with adjustable aperture, and includes a second gas flow channel 11, and the size of the cross section of the second gas flow channel 11 is adjusted by an adjusting mechanism; the adjustment mechanism comprises a valve needle 12, the valve needle 12 having a conical head 13, the conical head 13 extending into the second gas flow channel 11 along the length of the second gas flow channel 11, and being driven to vary the cross-sectional size of the second gas flow channel 11 by linear displacement. Borrow this design, the pressure of giving vent to anger of adjustable second gas flow channel 11 to the atomizer 6 that satisfies different models makes to the characteristic demand of gas flow, pressure the utility model discloses atomizing air feed module can possess wider application scope, reduces the manufacturing cost of enterprise's end. The second gas channel 11 is adjusted in the axial direction through the valve needle 12, so that the adjusting mechanism is simple and reliable, and the adjusting operation is convenient and accurate.
Preferably, the second airflow channel 11 includes an inlet section 11a and an outlet section 11b, and the pipe diameter of the outlet section 11b is smaller than that of the inlet section 11 a; the conical head 13 projects into the inlet section 11a and changes the cross-sectional size of the inlet section 11a by linear displacement.
Alternatively, the orifice 4 may be a fixed-diameter orifice 4, and the diameter of the orifice 4 is smaller than the diameter of the atomization gas path a. However, this scheme is not preferable because the pressure and flow rate of the outlet gas are fixed.
Still be equipped with a manometer 14 on the atomizing gas circuit A, this manometer 14 concatenates gas relief pressure valve 1 with between the solenoid valve 2 for show the pressure value.
The second embodiment: as shown in fig. 5, the difference from the first embodiment is that the positions of the pressure reducing assembly 3 and the solenoid valve 2 are changed, and the other parts are the same as the first embodiment, and thus are not described again.
The utility model discloses an among the atomizing air feed module can be applied to the breathing machine, this breathing machine still including mixing oxygen gas circuit B, should mix oxygen gas circuit B's inlet end even locate gas relief pressure valve 1 with on the atomizing gas circuit A between the solenoid valve 2.
An electromagnetic proportional valve 15 and a flow sensor 16 are sequentially connected in series on the oxygen mixing gas circuit B according to the direction of air flow, and the air outlet end of the oxygen mixing gas circuit B is communicated with an oxygen mixing chamber 17. The electromagnetic proportional valve 15 receives a control signal of the control circuit, controls the oxygen flow in the oxygen mixing gas circuit B by an opening degree, and the flow sensor 16 detects the actual oxygen flow in the oxygen mixing gas circuit B in real time and feeds the detection value back to the control circuit in real time. If the actual oxygen flow is found to be smaller than the set oxygen flow, a signal is sent out to control the electromagnetic proportional valve 15 to increase the opening; if the actual oxygen flow is found to be larger than the set oxygen flow, a signal is sent to control the electromagnetic proportional valve 15 to reduce the opening. Thereby realizing the closed-loop real-time control of oxygen supply to the oxygen mixing chamber 17.
The utility model discloses a set up pressure reducing assembly on atomizing gas way, atomizing pressure, the problem that the flow reduces when having solved current breathing machine oxygen flow increase can guarantee to get into the gas pressure and the flow stability of atomizer, and then guarantee the atomization efficiency of liquid, and the liquid granularity after the atomizing is littleer, helps the suspension, and then helps the patient to inhale, has solved among the prior art because of the too big problem of the atomization effect that causes of preceding stage pressure fluctuation.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a pressure and stable atomizing air feed module of flow which characterized in that:
the device comprises an atomization gas path, and a gas pressure reducing valve, an electromagnetic valve, a pressure reducing component and a throttling hole which are sequentially connected in series on the atomization gas path in the direction of gas flow;
the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer;
the electromagnetic valve is electrically connected with a control circuit, and the control circuit sends a switching signal to control the electromagnetic valve to open or close the atomization gas path of the atomizer.
2. The atomizing air supply module with stable pressure and flow according to claim 1, wherein: pressure reducing component includes pressure regulating spring and pressure regulating diaphragm, the pressure regulating spring acts on one side of pressure regulating diaphragm, the section setting of giving vent to anger that the opposite side of pressure regulating diaphragm corresponds a first gas flow way, and then adjusts the tension that pressure regulating diaphragm applyed through the pressure regulating spring give vent to anger the gas pressure of section in the first gas flow way.
3. The atomizing air supply module with stable pressure and flow according to claim 1, wherein: the pressure reducing assembly is a second gas pressure reducing valve.
4. The atomizing air supply module with stable pressure and flow according to claim 1, wherein: the throttling hole comprises a second gas flow channel, and the size of the cross section of the second gas flow channel is adjusted through an adjusting mechanism;
the adjusting mechanism comprises a valve needle, the valve needle is provided with a conical head part, the conical head part extends into the second gas flow passage along the length direction of the second gas flow passage, and the section size of the second gas flow passage is changed through linear displacement.
5. The atomizing air supply module with stable pressure and flow according to claim 4, wherein: the second airflow channel comprises an inlet section and an outlet section, and the pipe diameter of the outlet section is smaller than that of the inlet section; the conical head extends into the inducer, changing the cross-sectional size of the inducer by linear displacement.
6. The atomizing air supply module with stable pressure and flow according to claim 1, wherein: the orifice is an orifice with a fixed aperture, and the aperture of the orifice is smaller than the diameter of the atomization gas path.
7. The atomizing air supply module with stable pressure and flow according to claim 1, wherein: and a pressure gauge is further arranged on the atomized gas path and connected in series between the gas pressure reducing valve and the electromagnetic valve.
8. The utility model provides a pressure and stable atomizing air feed module of flow which characterized in that:
the device comprises an atomization gas path, and a gas pressure reducing valve, a pressure reducing component, an electromagnetic valve and a throttling hole which are sequentially connected in series on the atomization gas path according to the direction of gas flow;
the air inlet end of the atomization air path is communicated with an external air source, the aperture of the throttling hole is smaller than or equal to the diameter of the atomization air path, and the air outlet of the throttling hole is communicated with the atomizer;
the electromagnetic valve is electrically connected with a control circuit, and the control circuit sends out a switching signal to control the electromagnetic valve to open or close the atomization gas circuit of the atomizer.
9. The atomizing air supply module with stable pressure and flow according to claim 8, wherein: the pressure reducing component comprises a pressure regulating spring and a pressure regulating diaphragm, wherein the pressure regulating spring acts on one side of the pressure regulating diaphragm, the air outlet section of a first gas flow channel is arranged on the other side of the pressure regulating diaphragm, and then tension applied to the pressure regulating diaphragm is regulated through the pressure regulating spring to regulate the gas pressure of the air outlet section in the first gas flow channel.
10. The atomizing air supply module with stable pressure and flow according to claim 8, wherein: the throttling hole comprises a second gas flow channel, and the size of the cross section of the second gas flow channel is adjusted through an adjusting mechanism;
the adjusting mechanism comprises a valve needle, the valve needle is provided with a conical head part, the conical head part extends into the second gas flow passage along the length direction of the second gas flow passage, and the section size of the second gas flow passage is changed through linear displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314786.9U CN217187307U (en) | 2021-12-27 | 2021-12-27 | Atomizing air supply module with stable pressure and flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314786.9U CN217187307U (en) | 2021-12-27 | 2021-12-27 | Atomizing air supply module with stable pressure and flow |
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| CN217187307U true CN217187307U (en) | 2022-08-16 |
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| CN202123314786.9U Active CN217187307U (en) | 2021-12-27 | 2021-12-27 | Atomizing air supply module with stable pressure and flow |
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