CN206896622U - Middle pressure breathing air supply and air supply system - Google Patents

Abstract

Safe labour protection field is the utility model is related to, in particular to middle pressure breathing air supply and air supply system.Middle pressure breathing air supply includes vehicle frame, shell, air compressor, filter assemblies, gas supply assembly, control panel and the oxygen concentration detector for detecting oxygen concentration in supply of breathing gas；Shell is arranged on vehicle frame, control panel is arranged on outer shell outer wall, air compressor is connected with filter assemblies import, filter assemblies outlet is connected with gas supply assembly, air is sent into filter assemblies by air compressor, toxic gas in air and fuel gas etc. are filtered out, it can effectively detect whether the components such as air compressor, filter assemblies and gas supply assembly are revealed by gas leakage detector simultaneously, once leakage can inform user with the very first time, user is set to have the sufficient time to withdraw scene or more exchange device.

Description

Medium pressure breathing air supply and air supply system

technical field

The utility model relates to the technical field of safety labor protection, in particular to a medium-pressure breathing air supplier and an air supply system.

Background technique

Mobile breathing air supply devices are often used in the production process of petroleum, chemical industry, shipbuilding, metallurgy and building materials and various forms of emergency rescue and disaster relief. Usually mobile breathing air supply devices use compressed air cylinders as the air source. When the gas storage in the gas cylinder is used up, the gas storage cylinder needs to be replaced manually to continue the air supply. The work of replacing the gas storage cylinder is intensive and takes a long time. , increase the risk of gas supply interruption, and need enough spare gas cylinders, which cannot meet the needs of long-term and continuous supply of breathing air in some production processes and rescue and disaster relief processes.

Air respirators are widely used in fire protection, chemical industry, shipbuilding, petroleum, smelting, warehouses, laboratories, mines and other departments, for firefighters and emergency rescue personnel to breathe safely and effectively in various environments such as dense smoke, poisonous gas, steam or lack of oxygen. Carry out fire fighting, emergency relief and ambulance work. In various complex emergency rescue sites, firefighters and emergency rescue personnel are always in danger, and secondary disasters such as collapse, poisonous gas, and dense smoke appear at any time. At the same time, in order to speed up the work efficiency of emergency rescue, it is necessary to stay at the accident site for a long time, and to effectively avoid the intrusion of poisonous gas. However, in the prior art, rescuers need to frequently replace the gas supply cylinders, which not only affects work efficiency, but also in When entering the rescue site, it is necessary to carry a large number of gas supply cylinders, which increases the burden and affects the rescue progress.

Therefore, it is an important technical problem to be solved by those skilled in the art to provide a medium-pressure breathing air supplier and an air supply system capable of supplying air normally for a long time.

Utility model content

The purpose of the utility model is to provide a medium-pressure breathing air supply device and an air supply system to alleviate the technical problem of difficulty in long-term normal air supply in the prior art.

The utility model provides a medium-pressure breathing air supplier, comprising: a vehicle frame, a casing, an air compressor, a filter assembly, an air supply assembly, a control panel, and an oxygen concentration detector for detecting the oxygen concentration in the supplied breathing gas;

The casing is arranged on the vehicle frame, the air compressor, the filter assembly and the air supply assembly are arranged inside the casing, the control panel is arranged on the outer wall of the casing, and the oxygen concentration The detector is arranged in the gas supply assembly;

The air compressor is connected to the inlet of the filter assembly, the outlet of the filter assembly is connected to the air supply assembly, and both the air compressor and the oxygen concentration detector are connected to the control panel.

Further, the filter assembly includes a filter and a filter distributor;

One end of the filter is connected to the air compressor, the other end is connected to the filter distributor, and the other end of the filter distributor is connected to the air supply assembly.

Further, the air supply assembly includes a reel and an air supply pipe;

One end of the coiler is connected to the air supply pipe, and the other end is connected to the filter distributor.

Further, the reel is provided with an automatic switching valve, and the automatic switching valve is provided with a first air inlet, a second air inlet and an air outlet, the air outlet is connected to the reel, and the first air inlet is connected to the reel. An air inlet is connected with the filter distributor, and the second air inlet is connected with a backup high-pressure air source.

Further, the backup high-pressure air source includes a high-pressure air bottle, a pressure reducing valve and an air pipeline;

The air delivery pipe is connected with the second air inlet.

Further, an air pressure detector for detecting the air pressure of the air supply is arranged inside the housing, and the air pressure detector is connected with the control panel.

Further, a gas detector for detecting the concentration of combustible gas and toxic gas in the air is arranged inside the housing, and the gas detector is connected with the control panel.

Further, an alarm is provided on the casing, and the alarm is connected with the control panel.

Further, a power supply and a gas leakage detector for detecting whether the supplied breathing gas leaks are arranged inside the housing;

The power supply is connected to the control panel, and the gas leakage detector is arranged inside the housing and connected to the control panel.

An air supply system provided by the utility model includes the medium-pressure breathing air supply device and a breathing mask connected to the medium-pressure breathing air supply device.

Beneficial effect:

A medium-pressure breathing air supplier provided by the utility model includes a vehicle frame, a casing, an air compressor, a filter assembly, an air supply assembly, a control panel and an oxygen concentration detector for detecting the oxygen concentration in the supplied breathing gas; the casing It is arranged on the frame, and a cavity is formed between the shell and the frame. The air compressor, filter assembly, air supply assembly and gas leakage detector are set inside the shell, and the control panel is set on the outer wall of the shell. Through the control panel, the air The compressor and the gas leakage detector are regulated, the air compressor is connected to the inlet of the filter assembly, the outlet of the filter assembly is connected to the air supply assembly, and the air is sent into the filter assembly through the air compressor to filter the air and remove the toxic substances in the air. Gases and combustible gases are filtered out, which can continuously supply breathing air for users for a long time; at the same time, the gas leak detector can effectively detect whether the components such as air compressors, filter components and air supply components are leaking. Inform the user in a timely manner, so that the user has sufficient time to evacuate the site or replace the equipment; and detect the oxygen content of the supplied air through the oxygen concentration detector to ensure the quality of the supplied air.

An air supply system provided by the utility model includes a medium-pressure breathing air supply device and a breathing mask connected with the medium-pressure breathing air supply device.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic diagram of the overall structure of the medium-pressure breathing air supplier provided by the embodiment of the present invention;

Fig. 2 is the back view of Fig. 1;

Fig. 3 is a side view of Fig. 1;

Fig. 4 is a schematic structural diagram of the automatic switching valve in Fig. 1 .

Icons: 100-frame; 200-housing; 300-air compressor; 400-filter assembly; 401-filter; 402-filter distributor; 501-reel; 5011-automatic switching valve; 5012-air outlet; 5013-first air inlet; 5014-second air inlet; 502-air supply pipe; 503-backup high-pressure air source; 600-control panel; 700-gas leak detector; 701-gas detector; 800-alarm .

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The utility model will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the medium-pressure breathing air supplier provided by the embodiment of the present invention; Fig. 2 is the rear view of Fig. 1; Fig. 3 is the side view of Fig. 1; Fig. 4 is the structure of the automatic switching valve in Fig. 1 schematic diagram.

As shown in Figures 1 to 4, a medium-pressure breathing air supplier provided by the embodiment of the present invention includes a vehicle frame 100, a housing 200, an air compressor 300, a filter assembly 400, an air supply assembly, a control panel 600 and An oxygen concentration detector for detecting the oxygen concentration in the supplied breathing gas; the housing 200 is arranged on the vehicle frame 100, the air compressor 300, the filter assembly 400, the air supply assembly and the gas leakage detector 700 are arranged inside the housing 200, and the control panel 600 is set on the outer wall of the housing 200; the air compressor 300 is connected to the inlet of the filter assembly 400, the outlet of the filter assembly 400 is connected to the air supply assembly, and both the air compressor 300 and the gas leakage detector 700 are connected to the control panel 600.

A medium-pressure breathing air supplier provided by the embodiment of the utility model includes a vehicle frame 100, a housing 200, an air compressor 300, a filter assembly 400, an air supply assembly, a control panel 600 and a device for detecting whether the supplied breathing air leaks. Gas leakage detector 700; the housing 200 is arranged on the vehicle frame 100, a cavity is formed between the housing 200 and the vehicle frame 100, the air compressor 300, the filter assembly 400, the air supply assembly and the gas leakage detector 700 are arranged inside the housing 200 , the control panel 600 is arranged on the outer wall of the casing 200, and the air compressor 300 and the gas leakage detector 700 can be regulated through the control panel 600, the air compressor 300 is connected to the inlet of the filter assembly 400, and the outlet of the filter assembly 400 is connected to the air supply assembly , through the air compressor 300, the air is sent into the filter assembly 400, the air is filtered, and the toxic gas and combustible gas in the air are filtered out, so that the user can continuously supply breathing air for a long time; at the same time, through the gas leakage detection The device 700 can effectively detect whether the components such as the air compressor 300, filter assembly 400, and air supply assembly are leaking. Once the leak occurs, the user can be notified at the first time, so that the user has enough time to evacuate the site or replace the equipment; and through the oxygen concentration detector Detect the oxygen content of the supplied air to ensure the quality of the supplied air.

It should be pointed out that the housing 200 , air compressor 300 , filter assembly 400 , air supply assembly, control panel 600 and gas leakage detector 700 are all arranged on the vehicle frame 100 , and the whole device can be easily moved through the vehicle frame 100 .

It should also be pointed out that the oxygen concentration detector is arranged inside the air supply assembly, which can detect the oxygen concentration in the supplied air, and if the oxygen concentration is low, the control panel 600 will send out an alarm.

It should also be pointed out that the gas leak detector 700 can use an ultrasonic leak detector. Any gas passing through the leak hole will generate an eddy current, and there will be a part of the ultrasonic wave band, so that the leak detection system of the ultrasonic detector can sense any kind of leakage. Gas leak.

It should also be pointed out that a specific gas generator can be set in the filter assembly 400, and the gas leakage detector 700 is used to detect a specific gas. Once the filter assembly 400 and its subsequent components leak, the specific gas will leak to the outside and be detected. Gas leak detector 700 detects.

It should also be pointed out that the gas leakage detector 700 is used to detect whether the whole equipment leaks the filtered gas. If the filtered gas leaks, it means that the equipment is damaged, which is very dangerous to the staff.

It should also be pointed out that the air compressor 300 is connected with the filter assembly 400, and the filter assembly 400 can filter out toxic substances such as toxic gas and flammable gas in the air, and supply healthy air to the user for a long time.

In an optional solution of this embodiment, the filter assembly 400 includes a filter 401 and a filter distributor 402; one end of the filter 401 is connected to the air compressor 300, the other end is connected to the filter distributor 402, and the other end of the filter distributor 402 is connected to the air supply Gas component connection.

The filter assembly 400 includes a filter 401 and a filter distributor 402. One end of the filter 401 is connected to the air compressor 300, the other end is connected to the filter distributor 402, and the other end of the filter distributor 402 is connected to the air supply assembly. The delivered gas enters the filter distributor 402 through the filter 401, so that the filtered gas can be delivered smoothly for the user to breathe.

It should be pointed out that the filter 401 includes a ball valve, an oil-water separator, a main filter element and an oil removal filter element. Through the mutual cooperation of multiple components, it can effectively filter and separate dangerous objects such as toxic gases and combustible gases in the air. Enable users to breathe healthy gas.

In an optional solution of this embodiment, the air supply assembly includes a pipe coil 501 and an air supply pipe 502 ; one end of the pipe coil 501 is connected to the air supply pipe 502 , and the other end is connected to the filter distributor 402 .

The air supply assembly is connected to the filter assembly 400. The air supply assembly includes a coil 501 and an air supply pipe 502. One end of the pipe coil 501 is connected to the air supply pipe 502, and the other end is connected to the filter distributor 402. The air supply pipe 502 is set on the coil. 501, it is convenient to accommodate the air supply pipe 502, and the air supply radius can be extended through the air supply pipe 502, so that the user can work in a narrow environment while getting sufficient healthy air supply.

It should be pointed out that one end of the air supply pipe 502 is connected to the coiler 501 , and the other end is connected to a device such as a breathing mask worn by the user.

It should also be pointed out that multiple coils 501 can be installed, and multiple coils 501 are connected to different outlets of the filter distributor 402. At this time, the equipment can supply air to multiple users at the same time, which greatly saves costs and reduces The burden of emergency rescue and disaster relief users.

It should also be pointed out that the filter distributor 402 is provided with an on-off valve, which can be freely closed to adjust the opening and closing of multiple outlets and the flow rate of the gas.

In an optional solution of this embodiment, an automatic switching valve 5011 is provided on the coiler 501, and the automatic switching valve 5011 is provided with a first air inlet 5013, a second air inlet 5014, and an air outlet 5012, and the air outlet 5012 It is connected with the coiler 501 , the first air inlet 5013 is connected with the filter distributor 402 , and the second air inlet 5014 is connected with the backup high-pressure air source 503 .

The hose reel 501 is connected with the filter distributor 402, which can receive the filtered gas, and then supply the filtered gas to the user. In order to ensure that the emergency rescue personnel can always get the supply of healthy air, even if the power supply is exhausted or the filter assembly 400 When damage occurs, an automatic switching valve 5011 is specially provided on the coiler 501, and the automatic switching valve 5011 is connected with the standby high-pressure gas source 503, wherein the automatic switching valve 5011 is provided with an air outlet 5012 and two air inlets, two The first air inlet 5013 and the second air inlet 5014 of the two air inlets respectively, the first air inlet 5013 is connected with the filter distributor 402, the second air inlet 5014 is connected with the standby high-pressure gas source 503, and one keeps One is kept closed, and the gas outlet 5012 is connected to the coil 501. At this time, if the gas delivered from the filter distributor 402 cannot meet the demand, it will automatically switch to the second gas inlet 5014, and the backup high-pressure gas source 503 supplies air to the user, especially when an accident occurs in emergency rescue, the air compressor 300 stops working, so that the user can have sufficient oxygen supply to evacuate from the dangerous area.

In an optional solution of this embodiment, the backup high-pressure air source 503 includes a high-pressure air bottle, a pressure reducing valve, and an air delivery pipe; the air delivery pipe is connected to the second air inlet 5014 .

The standby high-pressure air source 503 is arranged in the housing 200, and the standby high-pressure air source 503 is connected to the second air inlet 5014. The standby high-pressure air source 503 includes a high-pressure air bottle, a pressure reducing valve and an air pipeline. When the second air inlet 5014 is opened Yes, the air in the high-pressure air bottle enters the second air inlet 5014 through the decompression valve and the air delivery pipe to supply the user with breathing.

It should be pointed out that each hose reel 501 is connected with a plurality of backup high-pressure air sources 503, so as to ensure the safety of the staff when an accident occurs.

In an optional solution of this embodiment, an air pressure detector for detecting the air pressure of the air supply is provided inside the housing 200 , and the air pressure detector is connected to the control panel 600 .

In order to ensure the stability of the air pressure of the gas supplied to the user, an air pressure detector for detecting the air pressure of the air supply is provided in the casing 200. Specifically, the air pressure detector is arranged on the coil 501, which can effectively detect the air pressure of the gas finally delivered to the user .

It should be pointed out that, when the air pressure is too small, the signal is transmitted to the control panel 600, and the control panel 600 will automatically control the work of the air compressor 300. If the air pressure caused by the damage of the air compressor 300 is small, when the control panel 600 After the air compressor 300 sends the command, if the air pressure still does not change towards the set value, then the first air inlet 5013 is cut off, the second air inlet 5014 is opened, and the backup high-pressure air source 503 is used to supply air to prevent accidents and wait for work Carry out maintenance after evacuating from the dangerous area.

In an optional solution of this embodiment, a gas detector 701 for detecting the concentration of combustible gas and poisonous gas in the air is provided inside the housing 200 , and the gas detector 701 is connected to the control panel 600 .

In order to ensure the safety of users, a gas detector 701 for detecting the concentration of combustible gas and poisonous gas in the air is provided in the casing 200. The gas detector 701 is used to detect the concentration of combustible gas and poisonous gas in the outside air, because if the When the concentration of gas and poisonous gas is high, accidents are prone to occur, and emergency personnel will cause huge accidents due to manipulation without knowing it. Therefore, when the gas detector 701 detects that the concentration of combustible gas and poisonous gas in the outside air is too high, An alarm will be issued to let the user work carefully until it is safe to evacuate.

It should be noted that the gas detector 701 will transmit the detection data to the control panel 600 for analysis and processing by the control panel 600.

In an optional solution of this embodiment, an alarm 800 is arranged on the casing 200, and the alarm 800 is connected with the control panel 600.

In order to let the user know the alarm state of the gas detector 701 more clearly, an alarm 800 is installed on the casing 200. When the concentration of combustible gas and poisonous gas in the outside air is too high, the control panel 600 will control the alarm 800 to alarm.

It should be pointed out that this alarm 800 can also perform alarm work for the gas leakage detector 700 at the same time. When the gas leakage detector 700 detects that the equipment is leaking, the alarm 800 will also alarm. The alarm 800 is for gas leakage detection The alarm difference between the alarm 700 and the gas detector 701 can be that the sound and color of the alarm 800 are different, so that the user can distinguish which situation it is.

In an optional solution of this embodiment, a power supply is provided inside the housing 200 and is connected to the control panel 600 .

A power supply is provided in the housing 200 to supply power to the equipment, and a generator can also be installed in the equipment to supply power to the equipment.

An air supply system provided by an embodiment of the utility model includes a medium-pressure breathing air supplier and a breathing mask connected to the medium-pressure breathing air supplier.

An air supply system provided by an embodiment of the utility model includes a medium-pressure breathing air supply device and a breathing mask connected to the medium-pressure breathing air supply device. Syria.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A medium-pressure breathing air supplier, characterized in that it comprises: a vehicle frame, a shell, an air compressor, a filter assembly, an air supply assembly, a control panel and an oxygen concentration detector for detecting the oxygen concentration in the supply breathing gas ; The casing is arranged on the vehicle frame, the air compressor, the filter assembly and the air supply assembly are arranged inside the casing, the control panel is arranged on the outer wall of the casing, and the oxygen concentration The detector is arranged in the gas supply assembly; The air compressor is connected to the inlet of the filter assembly, the outlet of the filter assembly is connected to the air supply assembly, and both the air compressor and the oxygen concentration detector are connected to the control panel. 2. The medium pressure breathing air supplier of claim 1, wherein the filter assembly comprises a filter and a filter distributor; One end of the filter is connected to the air compressor, the other end is connected to the filter distributor, and the other end of the filter distributor is connected to the air supply assembly. 3. The medium-pressure breathing air supplier according to claim 2, wherein the air supply assembly includes a coil and an air supply pipe; One end of the coiler is connected to the air supply pipe, and the other end is connected to the filter distributor. 4. The medium-pressure breathing air supplier according to claim 3, characterized in that, the reel is provided with an automatic switching valve, and the automatic switching valve is provided with a first air inlet, a second air inlet and An air outlet, the air outlet is connected to the coil, the first air inlet is connected to the filter distributor, and the second air inlet is connected to a backup high-pressure air source. 5. The medium-pressure breathing air supplier according to claim 4, wherein the backup high-pressure air source includes a high-pressure air bottle, a pressure reducing valve and an air pipeline; The air delivery pipe is connected with the second air inlet. 6 . The medium-pressure breathing air supplier according to claim 1 , wherein an air pressure detector for detecting the air pressure of the air supply is arranged inside the casing, and the air pressure detector is connected to the control panel. 7 . 7. The medium-pressure breathing air supplier according to claim 1, wherein a gas detector for detecting the concentration of combustible gas and toxic gas in the air is arranged inside the housing, and the gas detector is connected with the control panel connect. 8. The medium-pressure breathing air supplier according to claim 7, wherein an alarm is provided on the housing, and the alarm is connected to the control panel. 9. The medium-pressure breathing air supplier according to claim 1, wherein a power supply and a gas leakage detector for detecting whether the supplied breathing gas leaks are arranged inside the housing; The power supply is connected to the control panel, and the gas leakage detector is arranged inside the housing and connected to the control panel. 10. An air supply system, characterized by comprising the medium-pressure breathing air supplier according to any one of claims 1-9 and a breathing mask connected to the medium-pressure breathing air supply.