CN215822165U - Standby air source device of constant-flow air breathing system - Google Patents
Standby air source device of constant-flow air breathing system Download PDFInfo
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- CN215822165U CN215822165U CN202023328276.2U CN202023328276U CN215822165U CN 215822165 U CN215822165 U CN 215822165U CN 202023328276 U CN202023328276 U CN 202023328276U CN 215822165 U CN215822165 U CN 215822165U
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Abstract
The utility model discloses a standby air source device of a constant-flow air breathing system, which comprises an air bottle group and a pressure reducing valve group; the gas cylinder group is connected with the pressure reducing valve group and then connected with an output gas pipeline through a one-way valve, and the output gas pipeline is connected with a main gas supply pipeline and then connected with a breathing mask to supply gas for the breathing mask; the gas cylinder group is also connected with an inflation interface which is used for connecting an external inflation device, the gas cylinder group can automatically switch the standby gas source to ensure continuous gas supply under the condition that the gas supply of the main gas source fails, and simultaneously alarms, so that the escape of operation constructors in an anaerobic environment is guaranteed when the main gas source fails, and the working safety coefficient of operators is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of chemical engineering operation, and particularly relates to a standby air source device of a constant-flow air breathing system.
Background
The constant flow type air breathing system is applied to the operation in the oxygen-free environment or the environment containing toxic and harmful gases. The standby air source of the constant-flow air breathing system adopts a high-pressure-reducing air supply system and is used for providing emergency air supply places for the breathing system, and when the pressure of a compressed air source (generally an air compressor) of the on-site constant-flow air breathing system is reduced due to failure, operators can generate danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a standby air source device of a constant-flow air breathing system, which can ensure air supply when the constant-flow air breathing system fails.
In order to achieve the purpose, the utility model provides the following technical scheme:
a backup air supply arrangement for a constant flow air breathing system, comprising: a gas cylinder group and a pressure reducing valve group; the gas cylinder group is connected with the pressure reducing valve group and then connected with a main gas supply pipeline through a one-way valve, and the main gas supply pipeline is connected with a gas output port; the gas cylinder group is also provided with an inflation interface which is used for connecting an external air supply device.
Further, the air supply device is an air compressor or an oxygen cylinder.
Furthermore, a flow switch is connected to the gas path between the pressure reducing valve group and the output gas port.
Further, flow switch sets up in explosion-proof block terminal.
Furthermore, an alarm is further arranged and is powered through an explosion-proof distribution box.
Furthermore, the gas cylinder group is formed by connecting four gas cylinders in parallel.
Further, a ball valve is arranged between the gas cylinder group and the gas charging connector.
The utility model has the following beneficial technical effects: the utility model can adopt the standby air source to ensure continuous air supply under the condition that the main air source fails to supply air, and simultaneously alarms, thereby greatly improving the working safety coefficient of operators.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a backup air supply device for a constant flow air breathing system, comprising: a gas cylinder group 1 and a pressure reducing valve group 2; the gas cylinder group 1 is connected with the pressure reducing valve group 2 and then connected with a main gas supply pipeline 10 through a one-way valve 3, and the main gas supply pipeline 10 is connected with a gas outlet 4; the gas bottle group is also provided with an inflation connector 5 in a connecting way, the inflation connector 5 is used for connecting an external air supply device, and when the gas in the gas bottle group 1 is in pressure loss, the external air supply device can be used for inflating the gas.
The air supply device is an air compressor or an oxygen cylinder.
A flow switch 6 is also connected on the gas path between the pressure reducing valve group 2 and the output gas 4.
The flow switch 6 is arranged in the explosion-proof distribution box 7.
Still be equipped with alarm 8, the alarm passes through explosion-proof block terminal 8 power supply.
The gas cylinder group 1 is formed by connecting four gas cylinders 11 in parallel.
A ball valve 9 is arranged between the gas cylinder group 1 and the gas charging connector 5.
The working principle is as follows: when the gas supply device is used, the gas output port 4 is connected with the gas supply pipeline of the main gas supply source, the gas supply pipeline is connected with the mask of an operator, the gas supply source is an air compressor generally, other compressed gas sources can be adopted, if the main gas supply source breaks down, the gas pressure in the gas supply pipeline can be reduced, the pressure reducing valve group can be opened after the gas cylinder group 1 in the standby gas source device starts to supply gas at the moment, the alarm 8 is triggered to start alarming, the pressure reducing valve group 2 is closed after the main gas supply source recovers the gas supply pressure, and the gas output port stops supplying gas.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A standby air source device of a constant-flow type air breathing system is characterized by comprising: a gas cylinder group and a pressure reducing valve group; the gas cylinder group is connected with the pressure reducing valve group and then connected with a main gas supply pipeline through a one-way valve, and the main gas supply pipeline is connected with an output gas port; the gas cylinder group is also provided with an inflation interface which is used for connecting an external air supply device.
2. The backup air supply arrangement for a constant flow air breathing system of claim 1, wherein: the air supply device is an air compressor or an oxygen cylinder.
3. The backup air supply device of constant flow type air breathing system according to claim 1, wherein a flow switch is further connected to the air path between the pressure reducing valve set and the output air port.
4. The backup air supply arrangement for a constant flow air breathing system of claim 3 wherein said flow switch is disposed within an explosion-proof electrical box.
5. The standby air supply device of a constant-flow air breathing system according to claim 4, further comprising an alarm, wherein the alarm is powered by an explosion-proof distribution box.
6. The alternate air supply device for a constant flow air breathing system according to claim 1 wherein the air cylinder group is composed of four air cylinders connected in parallel.
7. The alternate air supply device for a constant flow air breathing system as claimed in claim 1 wherein a ball valve is provided between the air bottle group and the inflation port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328276.2U CN215822165U (en) | 2020-12-31 | 2020-12-31 | Standby air source device of constant-flow air breathing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328276.2U CN215822165U (en) | 2020-12-31 | 2020-12-31 | Standby air source device of constant-flow air breathing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215822165U true CN215822165U (en) | 2022-02-15 |
Family
ID=80186720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023328276.2U Active CN215822165U (en) | 2020-12-31 | 2020-12-31 | Standby air source device of constant-flow air breathing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215822165U (en) |
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2020
- 2020-12-31 CN CN202023328276.2U patent/CN215822165U/en active Active
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