Micro-miniature spherical power gas compressor refrigerating device and oxygen respirator system thereof

Abstract

The invention relates to the technical field of fire fighting equipment, in particular to a miniature spherical power gas compressor refrigeration device and an oxygen respirator system thereof.The miniature spherical power gas compressor refrigeration device comprises a backpack bin and a breathing mask, the backpack bin is provided with a wearing belt, an oxygen bottle is installed in the backpack bin, and a pressure reducing valve is installed on the oxygen bottle; when rescue workers carry out high-intensity rescue actions, carbon dioxide in exhaled air reacts with calcium hydroxide in the filter box, the temperature in the filter box can rapidly rise, and therefore the rescue workers can conduct high-intensity rescue actions. When the temperature in the filter box reaches the boiling point of a refrigerant (the refrigerant is selected according to the actual situation of an enterprise, and the boiling point does not exceed 35 DEG C) or above, the filter box can be regarded as an evaporation bin to evaporate the refrigerant into a gas state, and then heat in the filter box is continuously absorbed under the action of the refrigeration mechanism, so that in the using process of the device, the heat in the filter box is continuously absorbed. Rescue workers can inhale the gas with the appropriate temperature all the time.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, in particular to a miniature spherical power gas compressor refrigeration device and an oxygen respirator system thereof. Background Art

[0002] In existing oxygen respirator technology, refrigeration plays a crucial role, ensuring that rescuers breathe gases at the appropriate temperature while performing their missions. Traditional refrigeration methods primarily use water ice or chemical blue ice. These two refrigerants must be stored in a refrigerated or frozen environment under normal conditions to ensure effective cooling. However, in practical applications, these methods have numerous shortcomings.

[0003] First, water ice and chemical blue ice must be removed from refrigeration or freezing and installed in oxygen respirators before use. This process is not only cumbersome but also time-consuming, significantly impacting rescue efficiency. Especially in emergency situations, a delay can have immeasurable consequences.

[0004] Secondly, storing this refrigerant requires additional cold rooms, which undoubtedly increases the complexity and cost of rescue equipment. Furthermore, traditional refrigeration methods also suffer from temperature regulation issues. In the early stages of using oxygen respirators, the refrigerant temperature is too low, resulting in cold air for rescuers, which can easily cause discomfort.

[0005] To overcome the shortcomings of traditional cooling methods, industry insiders have proposed semiconductor refrigeration technology. Semiconductor refrigeration offers advantages such as simple structure, compact size, and the absence of additional storage space, which significantly improves cooling efficiency and convenience. However, in practical applications, semiconductor refrigeration technology has also exposed some drawbacks.

[0006] Because semiconductor materials have relatively low thermal conductivity, they absorb heat slowly, resulting in less-than-ideal cooling performance. This is particularly true in high-temperature environments, such as fire scenes, where semiconductor cooling can be severely limited or even inoperable. Furthermore, semiconductor cooling's temperature control is easily affected by the external environment, making the cooling effect less stable.

[0007] In summary, existing oxygen respirator refrigeration technology has many shortcomings and cannot meet the rescuers' needs for inhaled gas temperature stability and comfort. Therefore, a new type of refrigeration device is urgently needed that can overcome the shortcomings of traditional refrigeration methods, achieve precise control of gas temperature and stable output, and provide rescuers with a more comfortable and efficient breathing environment. To this end, we propose a micro-spherical power gas compressor refrigeration device and its oxygen respirator system. Summary of the Invention

[0008] To solve the above technical problems, the present invention provides a miniature spherical powered gas compressor refrigeration device, comprising a backpack compartment and a breathing mask, wherein the backpack compartment is provided with a wearing belt, an oxygen cylinder is installed in the backpack compartment, and a pressure reducing valve is installed on the oxygen cylinder, and a pressure gauge is connected to the pressure reducing valve via a first hose, and further comprising: An airbag compartment, the airbag compartment being installed inside the backpack compartment; A filter box is installed inside the backpack compartment, contains calcium hydroxide particles, is located below the airbag compartment, and is connected to the airbag compartment via a second hose; An air supply pipe, one end of which is connected to the air inlet of the breathing mask, and the other end of which passes through the backpack compartment and is connected to the airbag compartment. The air supply pipe is divided into two parts. The part close to the breathing mask is cylindrical, and the part away from the breathing mask is a semicircular tube in the normal horizontal plane. The curved part of the semicircular tube is made of plastic material with good thermal insulation effect, and the flat part is made of composite plastic material with good thermal conductivity and is thin. An oxygen supply pipe, which is connected between the air supply pipe and the pressure reducing valve and is internally provided with an electrically controlled flow valve; A recovery tube, one end of which is connected to the exhaust port of the breathing mask, and the other end of which passes through the backpack and is connected to the filter box. The recovery tube has the same structure as the air supply tube, and the flat parts of the two are fixed together. The air supply tube and the recovery tube are bonded together to form a Y-shaped tube; A spherical compressor, the spherical compressor being installed in the backpack compartment via a bracket; The refrigeration mechanism is installed inside the backpack and is connected to the spherical compressor and the filter box. The refrigeration mechanism absorbs the heat generated by the reaction of carbon dioxide in the rescuer's exhaled gas with the carbon dioxide in the filter box, and the heat of the hot air exhaled by the rescuer during heavy physical activities, and uses the absorbed heat as a source of evaporation heat to achieve cooling inside the filter box.

[0009] In some embodiments, the refrigeration mechanism includes a pipe group installed inside the filter box, the pipe group is composed of a number of pipes distributed in a transverse array and a longitudinal array and connected to each other, and evenly distributed inside the filter box, the pipe group is filled with refrigerant, the top side of the pipe group is connected to a liquid inlet pipe, the diagonally opposite part is connected to an exhaust pipe, the exhaust pipe is connected to the air inlet of the spherical compressor by a first pipe, the exhaust port of the spherical compressor is installed with a first three-way pipe, the first three-way pipe is connected to a second three-way pipe in a mirrored manner, the second three-way pipe is connected to an S-shaped pipe, and also includes an adaptive condensation component installed in the backpack.

[0010] In some embodiments, the adaptive condensation component includes an electrically controlled pressure valve installed at the connection part between one of the openings of the second tee and the first tee, the electrically controlled pressure valve has a built-in pressure sensor, and also includes a sealed box installed at the connection part between the other opening of the second tee and the first tee, the sealed box is circular and is connected to the second tee, the axis of the sealed box is away from the corresponding second tee, a turbine is coaxially installed on the sealed box, a first rotating shaft is installed on the turbine, a second rotating shaft is installed on the backpack, a fan is sleeved on the second rotating shaft, a protective shell is installed in the backpack, the protective shell surrounds the fan, a gear acceleration group is installed between the second rotating shaft and the first rotating shaft, the first rotating shaft is connected to the input end of the gear acceleration group, and the second rotating shaft is connected to the output end of the gear acceleration group, and also includes a cooling component installed between the end of the S-shaped tube away from the second tee and the end of the liquid inlet pipe away from the pipeline group.

[0011] In some embodiments, the cooling component includes a cooling tube that connects one end of the S-shaped tube away from the second tee tube with one end of the liquid inlet tube away from the pipeline group, and the cooling tube is hourglass-shaped.

[0012] In some embodiments, the connection portion between the recovery pipe and the filter box, and the connection portion between the second hose and the filter box are both installed with isolation nets.

[0013] In some embodiments, a through hole is provided on the filter box, which is located on the side opposite to the cover of the backpack compartment. The edge of the through hole is designed as an anti-flow groove, a sealing cover is installed on the through hole, and a sealing ring is installed on the sealing cover.

[0014] In some embodiments, an air pressure sensor is installed in the airbag compartment, and the air pressure sensor is electrically connected to the spherical compressor.

[0015] In some embodiments, the cooling component includes a first sealing plate installed on the end of the S-shaped tube away from the second tee tube, and a second sealing plate installed on the end of the liquid inlet tube away from the pipeline group. A capillary tube is connected between the first sealing plate and the second sealing plate. There are several capillaries that are evenly distributed.

[0016] An oxygen respirator system adopts the above-mentioned miniature spherical power gas compressor refrigeration device, and a non-contact breathing sensor is arranged in the breathing mask. The non-contact breathing sensor is electrically connected to the air pressure sensor and the spherical compressor.

[0017] The present invention has at least the following beneficial effects: 1. The temperature of the exhaled gas of the rescuer is close to the human body temperature. The Y-shaped arrangement of the gas supply pipe and the recovery pipe after bonding ensures that heat is always transferred between the exhaled gas and the inhaled gas during the breathing process of the rescuer, thereby regulating the temperature of the gas inhaled by the rescuer; 2. When rescuers conduct high-intensity rescue operations, the temperature inside the filter box will rise rapidly as the carbon dioxide in the exhaled gas reacts with the calcium hydroxide in the filter box. When the temperature inside the filter box reaches the boiling point of the refrigerant (the refrigerant is selected according to the actual situation of the enterprise, and the boiling point shall not exceed 35°C), the filter box can be regarded as an evaporation chamber, evaporating the refrigerant into a gaseous state. Subsequently, under the action of the refrigeration mechanism, the heat in the filter box is continuously absorbed, so that rescuers can always inhale gas at a suitable temperature during the use of this device. 3. With the cooperation of adaptive condensing elements and spherical compressor, this device can achieve corresponding cooling efficiency according to the actual breathing frequency and amount of exercise of the rescuer during the rescue process, and make efficient use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view structural diagram of the present invention; Figure 3 Schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the decomposition structure of the filter box of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle; Figure 6 This is a schematic diagram of the internal side structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B in the middle; Figure 8 This is a schematic diagram of the refrigeration mechanism structure of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the structure at C in the middle; Figure 10 This is a structural diagram of Example 2 of the present invention.

[0019] Figure: 1, backpack; 11, breathing mask; 111, non-contact breathing sensor; 12, wearing belt; 13, oxygen cylinder; 14, pressure reducing valve; 15, first hose; 16, pressure gauge; 2, air bag compartment; 21, air pressure sensor; 3, filter box; 31, second hose; 32, isolation net; 4, air supply pipe; 5, oxygen supply pipe; 51, electric control flow valve; 6, recovery pipe; 7, spherical compressor; 8, refrigeration mechanism; 81, pipeline group; 82, liquid inlet pipe; 83, exhaust pipe; 84, first pipe Channel; 85. First three-way pipe; 86. Second three-way pipe; 87. S-shaped pipe; 88. Adaptive condensation component; 881. Electric pressure valve; 882. Sealed box; 883. Turbine; 884. First rotating shaft; 885. Second rotating shaft; 886. Fan; 887. Protective shell; 888. Gear acceleration group; 889. Cooling component; 8891. Cooling pipe; 8892. First sealing plate; 8893. Second sealing plate; 8894. Capillary tube; 91. Through hole; 92. Sealing cover; 93. Sealing ring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0021] See also Figures 1-9 The present invention provides a technical solution: a miniature spherical power gas compressor refrigeration device, comprising a backpack 1 and a breathing mask 11, the backpack 1 being provided with a wearing belt 12, an oxygen cylinder 13 being installed in the backpack 1, the oxygen cylinder 13 being provided with a pressure reducing valve 14, the pressure reducing valve 14 being connected to a pressure gauge 16 via a first hose 15, and further comprising: The airbag compartment 2 is installed inside the backpack compartment 1; The filter box 3 is installed inside the backpack compartment 1 and contains calcium hydroxide particles. The filter box 3 is located below the airbag compartment 2 and is connected to the airbag compartment 2 via a second hose 31. The air supply pipe 4 has one end connected to the air inlet of the breathing mask 11, and the other end passes through the backpack compartment 1 and is connected to the airbag compartment 2. The air supply pipe 4 is divided into two parts. The part close to the breathing mask 11 is cylindrical, and the part away from the breathing mask 11 is a semicircular tube in the normal horizontal plane. The curved part of the semicircular tube is made of plastic material with good thermal insulation effect, and the flat part is made of composite plastic material with good thermal conductivity and is thin; The curved part can be made of silicone or PVC material, and the flat part can be made by adding a metal layer such as copper, aluminum, etc. inside or outside the plastic hose, or filling the plastic hose with thermal conductive materials such as graphite, thermal oil, thermal conductive plastic particles, etc., and then using a two-color injection molding process to achieve better thermal conductivity.

[0022] The oxygen supply pipe 5 is connected between the gas supply pipe 4 and the pressure reducing valve 14, and an electric control flow valve 51 is provided inside the oxygen supply pipe 5; Recovery pipe 6, one end of which is connected to the exhaust port of the breathing mask 11, and the other end of which passes through the backpack 1 and is connected to the filter box 3. The recovery pipe 6 has the same structure as the air supply pipe 4, and the flat parts of the two are fixed together. After being bonded, the air supply pipe 4 and the recovery pipe 6 form a Y-shaped pipe; The temperature of the rescuer's exhaled gas is close to the human body temperature. The Y-shaped arrangement of the gas supply pipe 4 and the recovery pipe 6 after bonding allows heat to be transferred between the rescuer's exhaled gas and the gas to be inhaled during the breathing process, thereby regulating the temperature of the gas inhaled by the rescuer.

[0023] The spherical compressor 7 is installed in the backpack compartment 1 through a bracket; The refrigeration mechanism 8 is installed inside the backpack 1 and is connected to the spherical compressor 7 and the filter box 3. The refrigeration mechanism 8 absorbs the heat generated by the reaction of carbon dioxide in the rescuer's exhaled gas with the carbon dioxide in the filter box 3, and the heat of the hot air exhaled by the rescuer during heavy physical activities, and uses the absorbed heat as a source of evaporation heat to achieve cooling inside the filter box 3.

[0024] The refrigeration mechanism 8 includes a pipe group 81 installed inside the filter box 3. The pipe group 81 is composed of a number of pipes distributed in a transverse array and a longitudinal array that are interconnected and evenly distributed inside the filter box 3. The pipe group 81 is filled with refrigerant. The top side of the pipe group 81 is connected to a liquid inlet pipe 82, and the diagonally opposite part is connected to an exhaust pipe 83. The exhaust pipe 83 is connected to the air inlet of the spherical compressor 7 by a first pipe 84. The exhaust port of the spherical compressor 7 is installed with a first three-way pipe 85, and the first three-way pipe 85 is connected to a second three-way pipe 86 in a mirror image, and the second three-way pipe 86 is connected to an S-shaped pipe 87. It also includes an adaptive condensation component 88 installed in the backpack 1.

[0025] The adaptive condensation member 88 includes an electrically controlled pressure valve 881 installed at the connection portion between one of the ports of the second three-way pipe 86 and the first three-way pipe 85. The electrically controlled pressure valve 881 has a built-in pressure sensor. The adaptive condensation member 88 also includes a sealed box 882 installed at the connection portion between the other port of the second three-way pipe 86 and the first three-way pipe 85. The sealed box 882 is circular and communicates with the second three-way pipe 86. The axis of the sealed box 882 is away from the corresponding second three-way pipe 86. The sealed box 882 is coaxially mounted with a turbine 883. The turbine 883 is mounted with a first rotating shaft 884. The back compartment 1 A second rotating shaft 885 is installed on it, and a fan 886 is sleeved on the second rotating shaft 885. A protective shell 887 is installed in the backpack 1, and the protective shell 887 surrounds the fan 886. A gear acceleration group 888 is installed between the second rotating shaft 885 and the first rotating shaft 884. The first rotating shaft 884 is connected to the input end of the gear acceleration group 888, and the second rotating shaft 885 is connected to the output end of the gear acceleration group 888. It also includes a cooling component 889 installed between the end of the S-shaped tube 87 away from the second three-way tube 86 and the end of the liquid inlet pipe 82 away from the pipeline group 81.

[0026] The cooling element 889 includes a cooling tube 8891 that connects one end of the S-shaped tube 87 away from the second three-way tube 86 with one end of the liquid inlet tube 82 away from the pipeline group 81. The cooling tube 8891 is hourglass-shaped.

[0027] Compared with the capillary tube 8894, the hourglass-shaped cooling tube 8891 is cheaper, stronger, has a lower damage rate, and is more practical at disaster sites.

[0028] The connection portion between the recovery pipe 6 and the filter box 3 and the connection portion between the second hose 31 and the filter box 3 are both installed with an isolation net 32 ​​.

[0029] The isolation net 32 ​​can prevent calcium hydroxide particles from entering the recovery pipe 6 and the second hose 31.

[0030] A through hole 91 is provided on the filter box 3 , and the through hole 91 is located on the side opposite to the cover of the backpack compartment 1 . The edge of the through hole 91 is designed as an anti-flow groove. A sealing cover 92 is installed on the through hole 91 , and a sealing ring 93 is installed on the sealing cover 92 .

[0031] Rescue workers can fill or replace the calcium hydroxide particles in the filter box 3 by removing or installing the sealing cover 92 .

[0032] An air pressure sensor 21 is installed in the air bag chamber 2, and the air pressure sensor 21 is electrically connected to the spherical compressor 7.

[0033] An oxygen respirator system adopts the above-mentioned miniature spherical power gas compressor refrigeration device, and a non-contact breathing sensor 111 is set in the breathing mask 11. The non-contact breathing sensor 111 is electrically connected to the air pressure sensor 21 and the spherical compressor 7.

[0034] Working principle: Before entering the disaster site, the rescuer wears the backpack 1 on his back using the wearing belt 12, opens the pressure reducing valve 14 and the electronically controlled flow valve 51, and the exhaled gas of the rescuer enters the filter box 3 through the recovery pipe 6. The carbon dioxide in this part of the gas reacts with the calcium hydroxide in the filter box 3, so that the carbon dioxide in the rescuer's exhaled gas is retained in the filter box 3, and the rest enters the airbag compartment 2 through the second hose 31. When the rescuer inhales, the oxygen cylinder 13 replenishes oxygen to the air supply pipe 4 through the pressure reducing valve 14, the electronically controlled flow valve 51, and the oxygen supply pipe 5, thereby realizing the recycling of gas. When the rescuer's exercise volume increases, the non-contact breathing sensor 111 detects that the rescuer's breathing rate accelerates. At the same time, the pressure in the airbag compartment 2 will continue to increase in a short period of time, which is detected by the air pressure sensor 21. That is, a large amount of carbon dioxide reacts with calcium hydroxide, and the power of the spherical compressor 7 is increased accordingly to ensure the refrigeration effect. The specific principle is: an exothermic reaction occurs during the reaction of carbon dioxide and calcium hydroxide, which increases the temperature in the filter box 3. When the temperature in the filter box 3 reaches the boiling point of the refrigerant, the refrigerant in the pipeline group 81 evaporates into a gaseous state. It should be noted that the boiling point of the refrigerant can be changed according to different material selections. Enterprises can set it according to their own conditions. However, the boiling point of the refrigerant cannot be higher than 35°C to ensure that the temperature of the gas inhaled by the rescuer is not too high. Under the action of the spherical compressor 7, the high-temperature gaseous refrigerant is compressed into a high-temperature and high-pressure gas and enters the first three-way pipe 85. There are two openings connecting the first three-way pipe 85 and the second three-way pipe 86. The opening where the electric-controlled pressure valve 881 is located initially completely seals the corresponding opening. The high-temperature and high-pressure gas passes through the opening on the other side and drives the turbine 883 to rotate. The turbine 883 drives the fan 886 to rotate at high speed through the first rotating shaft 884, the gear acceleration group 888, and the second rotating shaft 885. After passing through the turbine 883 and entering the S-shaped pipe 87, the high-temperature and high-pressure gas is cooled by the fan 886 and converted into a high-temperature and high-pressure liquid. When the fan 886 reaches a certain speed, the force driving it to maintain the certain speed decreases due to inertia. At this time, the electric-controlled pressure valve 881 opens partially, diverting the high-temperature and high-pressure gaseous refrigerant in the first three-way pipe 85. Under the condition of constant power of spherical compressor 7, when high temperature and high pressure gas completely passes through turbine 883, fan 886 rotates at the highest speed. Since driving turbine 883 to rotate loses some power, the flow rate slows down. If electric pressure valve 881 is fully opened, the power driving turbine 883 to rotate is minimum, that is, fan 886 rotates at the slowest speed, and the flow rate of refrigerant in S-shaped tube 87 is the fastest. In other words, the speed of fan 886 is inversely proportional to the flow rate of refrigerant in S-shaped tube 87. When high temperature and high pressure gas passes through hourglass-shaped cooling tube 8891, the flow rate of refrigerant in large space is reduced. The refrigerant flows out through the narrow area, and the pressure drops as it flows. When the pressure drops, the temperature also drops sharply, turning into a low-temperature, low-pressure liquid, and then enters the filter box 3, where it is evaporated again, completing the refrigeration cycle. Refrigerants with different flow rates can achieve different cooling effects. Based on this point, those skilled in the art can combine the non-contact breathing sensor 111 and the pressure sensor to monitor the corresponding activity intensity of the rescue personnel, change the state of the electronically controlled pressure valve 881, and cooperate with the operating power of the spherical compressor 7 to accurately respond to the temperature changes in the filter box 3 in real time.

[0035] In this device, the principle of changing the cooling effect by controlling the flow rate is as follows: when the rescuer is carrying out rescue work in the early stage and the temperature in the filter box 3 is temporarily within a comfortable range, the spherical compressor 7 is temporarily not started. As the rescue time increases, the electric pressure valve 881 is gradually opened to gradually increase the flow rate of the refrigerant, thereby accelerating the refrigerant circulation speed and taking away more heat in the filter box 3. Example 2

[0036] See also Figure 10 Based on Example 1, the present invention proposes another solution for the cooling element 889: The cooling element 889 includes a first sealing plate 8892 installed on the end of the S-shaped tube 87 away from the second three-way tube 86, and a second sealing plate 8893 installed on the end of the liquid inlet tube 82 away from the pipeline group 81. A capillary tube 8894 is connected between the first sealing plate 8892 and the second sealing plate 8893. There are several capillary tubes 8894, which are evenly distributed.

[0037] Compared with the hourglass-shaped cooling tube 8891, the capillary tube 8894 can achieve a stronger cooling effect.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A miniature spherical powered gas compressor refrigeration device, comprising a backpack (1) and a breathing mask (11), wherein the backpack (1) is provided with a wearing belt (12), an oxygen cylinder (13) is installed in the backpack (1), a pressure reducing valve (14) is installed on the oxygen cylinder (13), and a pressure gauge (16) is connected to the pressure reducing valve (14) via a first hose (15), characterized in that: Also includes: An airbag compartment (2), wherein the airbag compartment (2) is installed inside the backpack compartment (1); A filter box (3), the filter box (3) being installed inside the backpack bin (1), containing calcium hydroxide particles, located below the airbag bin (2), and connected to the airbag bin (2) via a second hose (31); An air supply pipe (4), one end of the air supply pipe (4) being connected to the air inlet of the breathing mask (11), and the other end of the air supply pipe (4) being connected to the air bag chamber (2) after passing through the backpack chamber (1), the air supply pipe (4) being divided into two parts, the part close to the breathing mask (11) being cylindrical, and the part away from the breathing mask (11) being a semicircular tube in its normal horizontal plane, the arc-shaped part of the semicircular tube being made of a plastic material with good heat insulation effect, and the flat part being made of a composite plastic material with good heat conduction effect and thin in thickness; An oxygen supply pipe (5), the oxygen supply pipe (5) being connected between the air supply pipe (4) and the pressure reducing valve (14), and having an electrically controlled flow valve (51) disposed therein; A recovery pipe (6), one end of the recovery pipe (6) being connected to the exhaust port of the breathing mask (11), and the other end of the recovery pipe (6) being connected to the filter box (3) after passing through the backpack (1), the recovery pipe (6) and the air supply pipe (4) having the same structure, and the planar parts of the two are fixed together, and the air supply pipe (4) and the recovery pipe (6) are bonded together to form a Y-shaped pipe; A spherical compressor (7), wherein the spherical compressor (7) is installed in the backpack compartment (1) via a bracket; A refrigeration mechanism (8) is installed inside the backpack (1) and is connected to the spherical compressor (7) and the filter box (3). The refrigeration mechanism (8) absorbs heat generated by the reaction between carbon dioxide in the rescuer's exhaled gas and carbon dioxide in the filter box (3) and heat from the hot air exhaled by the rescuer during heavy physical activity, and uses the absorbed heat as a source of evaporation heat to achieve cooling inside the filter box (3).

2. The miniature spherical power gas compressor refrigeration device according to claim 1 is characterized in that: The refrigeration mechanism (8) comprises a pipe group (81) installed inside the filter box (3), the pipe group (81) comprising a plurality of pipes arranged in a transverse array and a longitudinal array, which are interconnected and evenly distributed inside the filter box (3), the pipe group (81) is filled with refrigerant, a liquid inlet pipe (82) is connected to one side of the top of the pipe group (81), and an exhaust pipe (83) is connected to the diagonally opposite portion, a first pipe (84) is connected between the exhaust pipe (83) and the air inlet of the spherical compressor (7), a first three-way pipe (85) is installed on the exhaust port of the spherical compressor (7), a second three-way pipe (86) is connected to the first three-way pipe (85) in a mirror image, and an S-shaped pipe (87) is connected to the second three-way pipe (86), and an adaptive condensing member (88) is installed in the backpack (1).

3. The miniature spherical power gas compressor refrigeration device according to claim 2 is characterized in that: The adaptive condensing member (88) includes an electrically controlled pressure valve (881) installed at a portion where one of the ports of the second three-way pipe (86) is connected to the first three-way pipe (85), the electrically controlled pressure valve (881) having a built-in pressure sensor, and also includes a sealed box (882) installed at a portion where another port of the second three-way pipe (86) is connected to the first three-way pipe (85), the sealed box (882) is circular and communicates with the second three-way pipe (86), the axis of the sealed box (882) is away from the corresponding second three-way pipe (86), the sealed box (882) is coaxially mounted with a turbine (883), the turbine (883) is mounted with a first rotating shaft (884), and the backpack (1 ) is mounted on a second rotating shaft (885), a fan (886) is sleeved on the second rotating shaft (885), a protective shell (887) is mounted in the backpack (1), the protective shell (887) surrounds the fan (886), a gear acceleration group (888) is mounted between the second rotating shaft (885) and the first rotating shaft (884), the first rotating shaft (884) is connected to the input end of the gear acceleration group (888), the second rotating shaft (885) is connected to the output end of the gear acceleration group (888), and also includes a cooling member (889) mounted between an end of the S-shaped tube (87) away from the second three-way tube (86) and an end of the liquid inlet tube (82) away from the pipeline group (81).

4. The miniature spherical power gas compressor refrigeration device according to claim 3 is characterized in that: The cooling element (889) comprises a cooling tube (8891) which connects one end of the S-shaped tube (87) away from the second three-way tube (86) with one end of the liquid inlet tube (82) away from the pipeline group (81); the cooling tube (8891) is in the shape of an hourglass.

5. The miniature spherical power gas compressor refrigeration device according to claim 1 is characterized in that: The connection portion between the recovery pipe (6) and the filter box (3) and the connection portion between the second hose (31) and the filter box (3) are both installed with an isolation net (32).

6. The miniature spherical power gas compressor refrigeration device according to claim 1 is characterized in that: The filter box (3) is provided with a through hole (91), the through hole (91) being located on a side opposite to the cover of the backpack bin (1), the edge of the through hole (91) being designed as an anti-flow groove, the through hole (91) being provided with a sealing cover (92), and the sealing cover (92) being provided with a sealing ring (93).

7. The miniature spherical power gas compressor refrigeration device according to claim 1 is characterized in that: An air pressure sensor (21) is installed in the air bag compartment (2), and the air pressure sensor (21) is electrically connected to the spherical compressor (7).

8. The miniature spherical power gas compressor refrigeration device according to claim 3 is characterized in that: The cooling element (889) comprises a first sealing plate (8892) installed on one end of the S-shaped tube (87) away from the second three-way tube (86), and a second sealing plate (8893) installed on one end of the liquid inlet tube (82) away from the pipeline group (81), a capillary tube (8894) is connected between the first sealing plate (8892) and the second sealing plate (8893), and there are a plurality of capillary tubes (8894) which are evenly distributed.

9. An oxygen respirator system, using the micro-spherical power gas compressor refrigeration device according to any one of claims 1 to 8, characterized in that: The invention comprises a non-contact breathing sensor (111) arranged in the breathing mask (11), wherein the non-contact breathing sensor (111) is electrically connected to the air pressure sensor (21) and the spherical compressor (7).

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