CN117180655A - Breathing follow-up type breathing mask air supply device and air supply control method - Google Patents
Breathing follow-up type breathing mask air supply device and air supply control method Download PDFInfo
- Publication number
- CN117180655A CN117180655A CN202311403227.6A CN202311403227A CN117180655A CN 117180655 A CN117180655 A CN 117180655A CN 202311403227 A CN202311403227 A CN 202311403227A CN 117180655 A CN117180655 A CN 117180655A
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- Prior art keywords
- fan
- air
- signal
- electric valve
- air supply
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 230000000241 respiratory effect Effects 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
The invention provides a breathing follow-up type breathing mask air supply device and an air supply control method, wherein the air supply device comprises a shell, a fan, an electric valve, a control unit and a power supply, and the fan and the electric valve are arranged in the shell; the air inlet of the fan is connected with the air inlet of the shell and is connected with the canister through the mounting interface, and the air outlet of the fan is connected with the air outlet of the shell and is connected with the mask of the gas mask through the air duct; the electric valve is arranged at the air inlet or the air outlet of the fan; the control unit is used for receiving and processing the breathing state sensing signals transmitted by the external breathing sensor and controlling the rotating speed of the fan and the opening and closing of the electric valve; the power supply is used for providing required power for the fan, the electric valve and the control unit. The air supply device can receive various respiration state sensing signals, and can timely adjust the air supply quantity of the gas mask according to the respiration condition of people, so that the use efficiency of the canister is effectively improved, and the protection time of the gas mask is prolonged.
Description
Technical Field
The invention belongs to the technical field of air supply control of respirators, and particularly relates to a breathing follow-up air supply device of a respirators and an air supply control method.
Background
The filtering type breathing mask is a respiratory protection article which can absorb, catalyze or filter inhaled operation environment air through a purification component, and the like, and is used as an air source after harmful substances are removed, so that the life safety of operators can be effectively protected in a toxic and harmful gas environment. Because the adsorption material filled in the canister can generate larger ventilation resistance, when workers wear the breathing mask for a long time or work with high intensity, larger physiological load can be generated, thereby influencing the workers. In order to improve the uncomfortable feeling of people wearing the breathing mask, an electric air blower is mainly arranged on the breathing mask at present, and the ventilation resistance of the canister is overcome by an active air blowing mode. The method can effectively reduce ventilation resistance and improve respiratory comfort, but the current air supply device on the market has the following two common disadvantages: firstly, the air flow provided by the air blower is constant, the air quantity can not be dynamically adjusted in time along with the breathing condition of a wearer, and the air quantity can be manually adjusted generally; secondly, when personnel exhale, the air supply ware still is in the air supply state, leads to the air supply ware during operation, and external gas purifies through the canister all the time, extravagant canister's purifying capacity, reduces canister's availability factor, finally reduces the guard time of breathing mask. Therefore, there is a need to design a follow-up air supply control device and an air supply control method, which can adjust the air supply quantity in time according to the breathing condition of the person, so as to effectively improve the protection time of the gas mask.
Disclosure of Invention
First, the technical problem to be solved
The invention provides a breathing follow-up type breathing mask air supply device and an air supply control method, which are used for solving the technical problem that the conventional breathing mask air supply device cannot timely adjust the air supply quantity along with the breathing condition.
(II) technical scheme
In order to solve the technical problems, the invention provides a breathing follow-up type breathing mask air supply device, which comprises a shell, a fan, an electric valve, a control unit and a power supply; wherein, the fan and the electric valve are both arranged in the shell; the air inlet of the fan is connected with the air inlet of the shell and is connected with the canister through the mounting interface, and the air outlet of the fan is connected with the air outlet of the shell and is connected with the mask of the gas mask through the air duct; the electric valve is arranged at the air inlet or the air outlet of the fan; the control unit is used for receiving and processing the breathing state sensing signals transmitted by the external breathing sensor and controlling the rotating speed of the fan and the opening and closing of the electric valve; the power supply is used for providing required power for the fan, the electric valve and the control unit.
Further, the electric valve is a normally open electric valve.
Further, the electric valve is a normally open type flow regulating valve with the valve caliber capable of being continuously regulated.
Further, the respiration sensor includes a respiration sensor that uses at least one of a pressure signal, a carbon dioxide concentration signal, a photoelectric signal, a piezoelectric signal, a temperature signal, and a humidity signal as a sensing signal.
In addition, the invention also provides a breathing follow-up type breathing mask air supply control method for the air supply device, which comprises the steps that when the air supply control device does not work, the electric valve is in a normally open state; when the control unit receives a signal of the expiration ending or inspiration state transmitted by the external respiration sensor, the electric valve is controlled to be powered off and in an opening state, air flow enters the fan from the canister, and the fan supplies air to the mask of the gas mask through the electric valve and the air duct; when the control unit receives an expiration state signal transmitted by the external respiration sensor, the electric valve is controlled to be closed, the air outlet channel of the fan is blocked, and the fan stops supplying air to the mask.
Further, the electric valve is a normally open electric valve.
Further, the electric valve is a normally open type flow regulating valve with the valve caliber capable of being continuously regulated.
Further, the respiration state sensing signal received by the control unit includes at least one of a pressure signal, a carbon dioxide concentration signal, a photoelectric signal, a piezoelectric signal, a temperature signal, and a humidity signal.
(III) beneficial effects
The invention provides a breathing follow-up type breathing mask air supply device and an air supply control method, wherein the air supply device comprises a shell, a fan, an electric valve, a control unit and a power supply, and the fan and the electric valve are arranged in the shell; the air inlet of the fan is connected with the air inlet of the shell and is connected with the canister through the mounting interface, and the air outlet of the fan is connected with the air outlet of the shell and is connected with the mask of the gas mask through the air duct; the electric valve is arranged at the air inlet or the air outlet of the fan; the control unit is used for receiving and processing the breathing state sensing signals transmitted by the external breathing sensor and controlling the rotating speed of the fan and the opening and closing of the electric valve; the power supply is used for providing required power for the fan, the electric valve and the control unit. The air supply device can receive various respiration state sensing signals, and can timely adjust the air supply quantity of the gas mask according to the respiration condition of people, so that the use efficiency of the canister is effectively improved, and the protection time of the gas mask is prolonged.
Drawings
Fig. 1 is a schematic diagram of a breathing follow-up breathing mask air supply device according to an embodiment of the present invention.
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the present invention will be given with reference to the accompanying drawings and examples.
The embodiment provides a breathing follow-up breathing mask air supply device, the composition of which is shown in fig. 1, and the air supply device 4 mainly comprises a shell, a fan 2, an electric valve 3, a control unit and a power supply. Wherein, the fan 2 and the electric valve 3 are both arranged in the shell; the air inlet of the fan 2 is connected with the air inlet of the shell and is connected with the air outlet of the canister 1 through an interface, the air outlet of the fan 2 is connected with one end of the electric valve 3, and the other end of the electric valve 3 is connected with the air outlet of the shell and is connected with the mask 6 of the gas mask through the air duct 5; the control unit is used for receiving a respiration state sensing signal transmitted by an external respiration sensor and sending a signal to the fan 2 and the electric valve 3 to control the air quantity of the fan 2 and the opening and closing of the electric valve 3; the power supply is used for providing the fan 2, the electric valve 3 and the control unit with the required power.
In this embodiment, the electrically operated valve 3 is a normally open electrically operated valve, or may be a normally open flow regulating valve with a continuously adjustable valve caliber. Respiratory state sensing signals received by the control unit include, but are not limited to, pressure signals, carbon dioxide concentration signals, photoelectric signals, piezoelectric signals, temperature signals, and humidity signals.
The working principle of the breathing follow-up type breathing mask air supply device is as follows: when the control unit receives a signal of the expiration ending or inspiration state transmitted by an external respiration sensor, the electric valve 3 is controlled to be opened, air flow enters the fan 2 from the canister 1 through the shell, and the fan 2 supplies air to the mask 6 of the breathing mask through the electric valve 3 and the air duct 5; when the control unit receives an expiration state signal transmitted by an external respiration sensor, the electric valve 3 is controlled to be closed, the air outlet channel of the fan 2 is blocked, and the fan 2 stops supplying air to the mask 6.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (8)
1. The breathing follow-up type breathing mask air supply device is characterized by comprising a shell, a fan, an electric valve, a control unit and a power supply; wherein, the fan and the electric valve are both arranged in the shell; the air inlet of the fan is connected with the air inlet of the shell and is connected with the canister through the mounting interface, and the air outlet of the fan is connected with the air outlet of the shell and is connected with the mask of the gas mask through the air duct; the electric valve is arranged at the air inlet or the air outlet of the fan; the control unit is used for receiving and processing the breathing state sensing signals transmitted by the external breathing sensor and controlling the rotating speed of the fan and the opening and closing of the electric valve; the power supply is used for providing required power for the fan, the electric valve and the control unit.
2. The respirator blower of claim 1, wherein the electrically operated valve is a normally open electrically operated valve.
3. The respirator blower of claim 1, wherein the electrically operated valve is a normally open flow regulator valve having a valve aperture that is continuously adjustable.
4. The respirator blower of claim 1, wherein the respiration sensor comprises a respiration sensor that senses at least one of a pressure signal, a carbon dioxide concentration signal, a photoelectric signal, a piezoelectric signal, a temperature signal, and a humidity signal.
5. A method of controlling the ventilation of a respiratory follow-up respirator for use in a ventilation apparatus as claimed in any one of claims 1 to 4, the method comprising, when the ventilation apparatus is not in operation, the electrically operated valve being normally open; when the control unit receives a signal of the expiration ending or inspiration state transmitted by the external respiration sensor, the electric valve is controlled to be powered off and in an opening state, air flow enters the fan from the canister, and the fan supplies air to the mask of the gas mask through the electric valve and the air duct; when the control unit receives an expiration state signal transmitted by the external respiration sensor, the electric valve is controlled to be closed, the air outlet channel of the fan is blocked, and the fan stops supplying air to the mask.
6. The method of controlling air supply according to claim 5, wherein the electrically operated valve is a normally open electrically operated valve.
7. The method of controlling air supply according to claim 5, wherein the electrically operated valve is a normally open type flow rate regulating valve with a continuously adjustable valve caliber.
8. The method of air supply control according to claim 5, wherein the respiration state sensing signal received by the control unit includes at least one of a pressure signal, a carbon dioxide concentration signal, a photoelectric signal, a piezoelectric signal, a temperature signal, and a humidity signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311403227.6A CN117180655A (en) | 2023-10-27 | 2023-10-27 | Breathing follow-up type breathing mask air supply device and air supply control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311403227.6A CN117180655A (en) | 2023-10-27 | 2023-10-27 | Breathing follow-up type breathing mask air supply device and air supply control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117180655A true CN117180655A (en) | 2023-12-08 |
Family
ID=88989000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311403227.6A Pending CN117180655A (en) | 2023-10-27 | 2023-10-27 | Breathing follow-up type breathing mask air supply device and air supply control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117180655A (en) |
-
2023
- 2023-10-27 CN CN202311403227.6A patent/CN117180655A/en active Pending
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