CN2424792Y - Chemical oxygen combined respiratory apparatus - Google Patents
Chemical oxygen combined respiratory apparatus Download PDFInfo
- Publication number
- CN2424792Y CN2424792Y CN 00224680 CN00224680U CN2424792Y CN 2424792 Y CN2424792 Y CN 2424792Y CN 00224680 CN00224680 CN 00224680 CN 00224680 U CN00224680 U CN 00224680U CN 2424792 Y CN2424792 Y CN 2424792Y
- Authority
- CN
- China
- Prior art keywords
- air suction
- oxygen
- medicine tank
- breathing
- guide pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a chemical oxygen combined respiratory device. The center of a medicine tank is provided with an air suction conduit. An air suction valve is installed on the upper top part of the air suction conduit. A radiation piece is arranged on one side of the air suction conduit. An upper and a lower screen boards are respectively arranged on the upper and the lower parts of the air suction conduit. Oxygen producing agent is filled between the upper and the lower screen boards. The lower part of the medicine tank is provided with an oxygen gasbag and an air discharge valve. The upper part of the medicine tank is provided with a respiratory soft conduit, a mouth appliance, a nose clip and a back protective band. The utility model has the advantages of reasonable design, high oxygen utilization efficiency, small air suction resistance, low temperature, good performance and comfortable wearing.
Description
The utility model relates to a coal mine safety rescue instrument equipment, in particular to a breathing device of a chemical oxygen self-rescuer.
The breathing systems of the existing chemical oxygen self-rescuer are two types, one type is a circulating breathing system, the other type is a reciprocating breathing system, the circulating breathing system has a complex structure, a large volume and high cost, the reciprocating breathing system generates oxygen quickly and has low oxygen utilization rate, particularly, the back and forth airflow of breathing gas passes through the oxygen generating agent to form secondary oxygen generation, the oxygen generating agent is easy to melt and agglomerate, oxygen is wasted, the breathing gas resistance is large, the breathing temperature is high, and a wearer feels uncomfortable.
The purpose of the utility model is to provide a chemical oxygen composite breathing device which has simple structure, light volume, low cost, high oxygen utilization rate, small air suction resistance, low temperature, uniform oxygen generation, avoidance of oxygen generation agent melting and caking and comfortable wearing.
The technical solution of the utility model is that: the chemical oxygen combined breathing device comprises a nose clip, a mouth tool, a breathing hose, a back protecting belt, an exhaust valve, an oxygen bag, an upper mesh plate, a lower mesh plate, amedicine tank and an oxygen generating agent, wherein the oxygen bag is arranged at the lower part of the medicine tank, the exhaust valve is arranged at the middle surface part of the oxygen bag, the upper part of the medicine tank is connected with the breathing hose, the mouth tool and the nose clip are arranged at the upper end of the hose, an air suction guide pipe is arranged at the center of the medicine tank, an air suction valve is arranged at the upper top part of the air suction guide pipe, a radiating fin is arranged at one side of the air suction guide pipe, the lower end of the air suction guide pipe is opened and is communicated with the oxygen bag, the upper mesh plate and the lower mesh plate are respectively arranged at the upper part and the lower part of the outer wall of the air suction guide pipe, the.
When a wearer exhales with the mouth piece, the exhaled air flow flows to the inhalation valve through the breathing hose, and because the inhalation valve is closed, the exhaled air flow is divided from the top of the inhalation valve to the periphery and enters the oxygen generating agent through the upper net plate, and water vapor and CO in the exhaled air flow2With oxygen generating agent (KO)2) The following chemical reactions take place:
during the reaction process, carbon dioxide is purified while oxygen is generated, at the moment, oxygen-enriched gas enters the oxygen bag for storage, during inspiration, the main part of the oxygen-enriched gas in the oxygen bag enters the inspiration hose through the inspiration duct and the inspiration valve (at the moment, the inspiration valve is opened), the other part of the oxygen-enriched gas is purified again through the oxygen generating agent layer and also enters the breathing hose simultaneously, the flow of the oxygen-enriched gas determines the melting condition of the oxygen generating agent layer, and the larger the melting degree is, the larger the resistance of the gas flow is. The two paths of air flow are converged to a breathing hose and enter the lung of a person through a mouth piece to complete the whole breathing cycle. When the self-rescuer is used, the nose clip is clipped on the nose of a wearer to form a closed breathing system which is isolated from outside toxic and harmful gas, thus realizing the purpose of self-rescuing and escaping of people in danger in toxic and harmful environment.
In conclusion, the novel structure of the device determines the performance of the device, the air suction guide pipe is hollow, so the air suction resistance is small, the air suction guide pipe is arranged in the center of the oxygen generating agent, so partial high temperature can be taken away during air suction, the reaction temperature of the oxygen generating agent is reduced, potassium superoxide is prevented from melting and caking, the purpose of small expiration resistance is achieved, and the other small part of sucked gas passes through the oxygen generating agent layer to purify CO again2Oxygen is generated. When the oxygen generating agent layer generates melting resistance, the air suction guide pipe can adjust air suction flow and balance air suction resistance. Because the utility model discloses a suction catheter and suction valve design have synthesized the circulating and reciprocating type advantage of modern self-rescuer simultaneously in the central authorities of oxygen device, have formed neotype composite construction, therefore simple structure, oxygen generation are even, the oxygen utilization ratio is high, and the resistance of breathing in is little, and the temperature is low, and technical performance is good, wears comfortablely.
Fig. 1 is the structure schematic diagram of the utility model:
the present invention will be described in detail with reference to the accompanying drawings:
figure 1-nose clip 2-mouth tool 3-breathing soft tube 4-back protective belt 5-exhaust valve
6-oxygen bag 7-lower net plate 8-medicine tank 9-oxygen generating agent 10-radiating fin 11-air suction conduit 12-air suction valve 13-upper net plate, the air suction conduit 11 is mounted in the centre of medicine tank 8, the air suction valve 12 is a one-way valve, and is mounted on the upper top portion of air suction conduit 11, the radiating fin 10 is mounted on the left side of air suction conduit 11, upper net plate 13 and lower net plate 7 are respectively mounted on the upper portion and lower portion of air suction conduit 11, the oxygen generating agent 9 is filled between upper net plate and lower net plate, after the above-mentioned components are combined, all the above-mentioned components are placed in the medicine tank 8, so that the invented chemical oxygen generating reaction equipment. The lower part of the device is provided with an oxygen bag 6, the middle surface part of the oxygen bag 6 is provided with an exhaust valve 5, the upper part of the device is connected with a breathing hose 3, and the upper end of the breathing hose 3 is provided with a mouth piece 2, thereby forming a chemical oxygen generation composite closed-circuit breathing system.
Claims (1)
1. A chemical oxygen combined breathing device comprises a nose clip, a mouth tool, a breathing hose, a back protecting belt, an exhaust valve, an oxygen bag, an upper mesh plate, a lower mesh plate, amedicine tank and an oxygen generating agent, wherein the oxygen bag is arranged at the lower part of the medicine tank, the exhaust valve is arranged at the middle surface part of the oxygen bag, the upper part of the medicine tank is connected with the breathing hose, the upper end of the hose is provided with the mouth tool and the nose clip, the chemical oxygen combined breathing device is characterized in that an air suction guide pipe is arranged at the center of the medicine tank, an air suction valve is arranged at the upper top part of the air suction guide pipe, a radiating fin is arranged at one side of the air suction guide pipe, the lower end of the air suction guide pipe is provided with an opening and is communicated with the oxygen bag, the upper mesh plate and the lower mesh plate are respectively arranged at the upper part and the lower part of the outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224680 CN2424792Y (en) | 2000-04-25 | 2000-04-25 | Chemical oxygen combined respiratory apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224680 CN2424792Y (en) | 2000-04-25 | 2000-04-25 | Chemical oxygen combined respiratory apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2424792Y true CN2424792Y (en) | 2001-03-28 |
Family
ID=33588986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00224680 Expired - Fee Related CN2424792Y (en) | 2000-04-25 | 2000-04-25 | Chemical oxygen combined respiratory apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2424792Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
-
2000
- 2000-04-25 CN CN 00224680 patent/CN2424792Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671318A (en) * | 2012-05-14 | 2012-09-19 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
| CN102671318B (en) * | 2012-05-14 | 2014-07-23 | 北京安氧特科技有限公司 | Chemical oxygen-making respirator for normal temperature phase change material refrigeration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |