CN2333438Y - Hypoxia instrument - Google Patents

Abstract

The utility model relates to a hypoxia instrument for obtaining nominal hypoxia partial pressure mixed gas, and a breath passage formed by successively connecting through flow components such as a filtering device, a membrane module three-way sleeve barrel, a pressure reducing valve, a gas storing can, a flow meter, a throttling valve, etc. is arranged in the hypoxia instrument. After the air is led into a membrane module under certain pressure, the oxygen permeates from an organic membrane to form a rich oxygen area because of a module separating membrane having different permeating speed rates to the oxygen and nitrogen in the air. The concentration of the nitrogen of the other left part is higher to form a hypoxia area, and the hypoxia mixed gas is led out to a gas outlet port. The hypoxia instrument can be used for the hypoxic stress training of the athlete, the aviator, etc. and the recovery health care therapy of various illnesses, and can be also used for the popular hypoxia body building activity.

Description

Hypoxia instrument

The utility model belongs to gas preparation facilities technical field, thereby relates to a kind of Hypoxia instrument that the percent volume to volume of oxygen in the air obtains specified low oxygen partial pressure mist that reduces.

As everyone knows, anaerobic environment is to the one side of the existing damage of metabolic alterations of physical function, the one side that anti-damage is also arranged, key are factors such as degree that anoxic takes place and duration, and therefore suitable hypoxic training improves body anti-anoxia ability, the very significant effect of having built up health.In the physiology of exercise practice, the hypoxic training mode of altitutde training or simulated altitude training to some special professionals (as the sportsman, the pilot, the astronaut, diver and plateau worker etc.) effect that improves aspects such as sports achievement and ability to work is proved to be effective already, and some clinical medicine practises of being done in recent years also show, low oxygen therapy can make the human erythrocyte number, hemoglobin, hematocrit and blood circulation and oxygen utilize ability to improve, and are of value to respiratory system, cardio-cerebrovascular, digestive system, class treatment of diseases and health-care recoveries such as gynemetrics and neural and spirit.

Usually mainly contain chemical method, distribution method and rebreathing method in order to the method for preparing the low-oxygen gas mixture body in the prior art.Chemical method is to utilize sodium dithionite (having another name called low sulfurous acid) solution as oxygen scavenger air to be filtered through this solution, reduces the content of its oxygen, because the mechanism of this method deoxygenation is sodium dithionite and O ₂React, thereby make hydrosulfurous acid na concn in the solution, cause except that O with the carrying out and constantly reduce of reaction ₂Decrease in efficiency, and this variation is the curve of a time to time change, and difficult control partial pressure of oxygen is utilized chemical method to prepare hypoxemia and still needed and increase oxygen determination and flow-control equipment, cost is strengthened, and also difficult the solution regulated in flow-control that causes thus and the coordination between the oxygen content.The distribution method is a kind of method of utilizing purity nitrogen and pure oxygen gas to be mixed with the mist of certain composition, this method can be divided into high pressure preparation and normal pressure preparation dual mode again, the low-oxygen environment of Flying Training, Air Force employing at present is exactly to obtain in this way, though the method for high pressure preparation low-oxygen gas mixture body is comparatively simple, but owing to be under the condition of high pressure and purity nitrogen filling, to work, so distribution needs to carry out under explosion-proof condition, workplace there is special requirement of explosion proof, and the gas for preparing need be determined its oxygen content with the gas analyzer of costliness, and the oxygen content of the gas of preparing can not be regulated again; The atmospheric gas distribution method will be used the hypobaric chamber of sealing, makes the low pressure condition that reaches predetermined in the cabin by pumped vacuum systems and a series of control instrument, though this method oxygen content can be regulated, investment is big, floor space is big, mobility is poor.Rebreathing method is to allow the trainee suck the air of next constant volume of normal pressure, thereby the continuous discharge by carbon dioxide in the expiratory air makes the continuous method that forms low-oxygen environment that reduces of oxygen content in the constant volume air, though this method is very easy, but along with constantly carrying out of trainee's respiratory, oxygen content descends gradually, and respiratory resistance is bigger, may form respiration dead space and the inconvenience utilization.

Since the eighties, a kind of film air separation technology that adopts macromolecular material to carry out air separation has obtained swift and violent development, makes the separation technology field of gas liquid that a revolutionary variation take place.Membrane separation technique is to make double base or multicomponent mixture gas wear the organic polymer diffusion barrier of different shape and structure thoroughly under certain driving force effect and penetrate the different technology that make component separate or make specific components enrichment purpose that reach of speed of film according to each component gas.Because the membrane separation technique energy consumption is low, reliability is high, the life-span is long, working environment is not had specific (special) requirements and can not cause environmental pollution, therefore it has become the current important method that is used to produce rich nitrogen mixture gas in the world, and is widely used in large scale industry fields such as petrochemical industry, electronics, non-ferrous metal metallurgy, Industrial Boiler be combustion-supporting.The Hypoxia instrument of using according to above know-why and as training and medical from the nineties from the beginning of producing in that states such as Russia, Switzerland, Kuwait are existing, as Qomolangma I number (Э B e p e c T-I) Hypoxia instrument of Russian clinical medicine and film bioprocess technology Unit Instrument, Inc, the 100V of Switzerland hypoxemia medical treatment Co., Ltd ₃Type Hypoxia instrument etc. has applied to the intermittence low-oxygen training, and obtained certain achievement in research, but above-mentioned instrument owing to involve great expense, volume and weight excessive being difficult for apply in that the developing countries especially China are domestic, therefore, develop the Hypoxia instrument that is fit to China's national situation, make it to produce as early as possible the task of top priority that good social benefit and economic benefit had become this area job development already.

The purpose of this utility model is to overcome the existing in prior technology deficiency, provide a kind of rational in infrastructure, simple to operate, cost is low, applied range, can prepare the Hypoxia instrument of specified low oxygen partial pressure mist according to multiple needs such as training, health care and nationwide fitness programs.

Goal of the invention of the present utility model is to realize by following technical scheme: the Hypoxia instrument that is provided is a kind of instrument that utilizes advanced film air separation technology to make, in instrument, be provided with by a plurality of passage components and connect the breathing path that dress is formed, said each parts comprise two-stage filter, in membrane module threeway sleeve, pressure-reducing valve, humidification gas tank, flowmeter of air separation membrane etc. are housed, company's dress of each parts is in proper order: air inlet → two-stage filter → membrane module threeway sleeve → pressure-reducing valve → humidification gas tank → flowmeter → choke valve → gas outlet.In the use, air inlet and air pressure conveying equipment are connected, the gas outlet is connected to breathing mask.Because the infiltration rate of different types of gas in the organic polymer membrane module is that different (as being example with the PS membrane, under certain pressure, its infiltration rate is arranged in the following order: N ₂＜CH ₄＜CO＜Ar＜O ₂＜CO ₂＜He＜H ₂＜H ₂O), after the process filter enters membrane module under the effect of air at certain pressure, membrane module is different to the infiltration rate of oxygen in the air and nitrogen, the permeability of oxygen is far longer than nitrogen, under action of pressure, oxygen forms oxygen-rich area than the easy organic film of infiltrate, and the nitrogen gas concn that is detained part is increased like this, oxygen content reduces, and also drawing the low-oxygen gas mixture body thus transports to gas outlet (referring to Fig. 4) to form the hypoxemia district.

In the practical solution design, the utility model also can adopt air compressor is directly arranged in version in the instrument, promptly set up air compressor before the two-stage filter in instrument, so in use the air inlet of instrument can be directly and source of the gas 17 connect, and in instrument directly to the membrane module inlet plenum.The structure that adopts this scheme product is relatively compact, operation is also fairly simple, also have simultaneously mobile, carry, easy to maintenance, advantage such as be easy to apply.

Below with reference to accompanying drawing the utility model content is described further.

Fig. 1 is a theory structure schematic diagram of the present utility model.

Fig. 2 is the schematic diagram of a specific embodiment structure of the present utility model.

Fig. 3 is the side view of Fig. 2 structure.

Fig. 4 is a film air separation schematic diagram.

With reference to accompanying drawing 1, this Hypoxia instrument is by filter 12,13, membrane module threeway sleeve 1, pressure-reducing valve 12, humidification gas tank 9, flowmeter 8, choke valve 6, Pressure gauges etc. constitute breathes path, perhaps by mini air compressor 16, filter 12,13, membrane module threeway sleeve 1, pressure-reducing valve 11, humidification gas tank 9, flowmeter 8, choke valve 6, Pressure gauges etc. constitute breathes path, after source of the gas 17 deliver a gas to membrane module from instrument inlet port, by poor at membrane module two ends build-up of pressure, make airborne component pass through membrane module, form the low-oxygen gas mixture body with different infiltration rates.In the practical work process, because the pressure and the flow of the pressure of the gas oxygen content of drawing from the hypoxemia district and membrane material, film thickness, input gas and flow, output gas are relevant, and the parameter of membrane material and thickness is constant after selected, therefore can be by regulating input gas or the pressure of output gas and the mist that flow obtains different oxygen (18～10%).From the production technology angle, can both form pressure differential to the positive pressure operation and the negative-pressure operation of membrane module, specifically, and can be in the supercharging of film device entrance point, promptly the pressure that improves entrance point with air compressor makes the membrane module two ends form pressure differential; Or in the decompression of the film device port of export, promptly vacuumize with vavuum pump, cause the pressure differential at film device two ends.The utility model scheme adopts positive pressure operation, is difficult to problems such as stable and maintenance cost increase because of gas leaks build-up of pressure in the time of can avoiding negative-pressure operation like this.In addition because the low-oxygen gas mixture body is directly to pass through from the fenestra of air separation membrane, for eliminate airborne dust and air compressor discharge in the gas with oil droplet, so two-stage filter 12,13 and Pressure gauge accordingly should be set before film component device; Again because the oxygen content in the mist of discharging through film device is linear substantially with the flow of mist, thereby adopt valve 6 to regulate flows obtaining the low-oxygen gas mixture body of certain content, and monitor flows with spinner flowmeter 8; Instrument is in service because membrane module is very high to the transmitance of water, airborne moisture content is discharged from the oxygen enrichment mouth 1a of membrane module threeway sleeve 1, make the low-oxygen gas mixture body relatively drier, should not be directly used in people's breathing, before flowmeter 8, be provided with the gas tank 9 of humidification and pressure stabilization function, so that the low-oxygen gas mixture body of output is comparatively moistening and keep-up pressure stable for this reason.

Fig. 2 and Figure 3 shows that a kind of specific embodiment structure of the present utility model, its design form is to be equipped with two-stage filter 12,13, membrane module threeway sleeve 1, pressure-reducing valve 11, humidification gas tank 9, spinner flowmeter 8 along air inlet to leading to successively by appendix 4 in an instrument box 2, the entrance point of appendix 4 and the port of export all pick out outside the casing 2, and the air separation membrane 1b of filling is a PS membrane class hollow-fibre membrane in membrane module threeway sleeve 1.Number in the figure 3,5,10 and 15 is pipe joint; 7 is plastic tube; 14 is Pressure gauge.In establish the apparatus structure of air compressor machine and illustrated embodiment structure roughly the same, just air compressor machine 16 strings are contained in the instrument box entrance point to the appendix 4 between the two-stage filter 12,13.

Compare with existing similar technology, the project organization advanced person of Hypoxia instrument described in the utility model, reasonable, low, the conveniently moving of cost, simple to operate, be easy to safeguard, the percent volume to volume of the mist oxygen of exporting is 10～18 %, continuously adjustable, and nontoxic, dustless, the free from extraneous odour of mist of output. In the practical application, this Hypoxia instrument product both can be used for clinical medicine domain to treatment and the health-care recovery of various diseases, also can be used for the special professionals such as sportsman, pilot, astronaut simulate " plateau " training under the condition of Plain hypoxic stress training, improve its aerobic and anaerobic endurance quality, also can be used for the hypoxemia body-building of the general public, improve the human potential, promote the enhancing of national physique.

Claims (4)

1, a kind of Hypoxia instrument that is used to obtain specified low oxygen partial pressure mist, it is characterized in that being provided with in it and connect the breathing path that dress is formed by a plurality of passage components, said each parts comprise two-stage filter (12,13), in membrane module threeway sleeve (1), pressure-reducing valve (11), gas tank (9) and the flowmeter (8) of air separation membrane (1b) are housed, company's dress of each parts is in proper order: air inlet → two-stage filter (12,13) → membrane module threeway sleeve (1) → pressure-reducing valve (11) → humidification gas tank (9) → flowmeter (8) → choke valve (6) → gas outlet.

2, Hypoxia instrument as claimed in claim 1 is characterized in that at the preceding air compressor (16) that is provided with of two-stage filter (12,13).

3, Hypoxia instrument as claimed in claim 1, it is characterized in that in an instrument box (2), being equipped with two-stage filter (12,13), membrane module threeway sleeve (1), pressure-reducing valve (11), humidification gas tank (9), spinner flowmeter (8), choke valve (6) along air inlet to leading to successively by appendix (4), the entrance point of appendix (4) and the port of export all pick out outside the casing (2), are filled with PS membrane class hollow-fibre membrane in membrane module threeway sleeve (1).

4, Hypoxia instrument as claimed in claim 2, it is characterized in that in an instrument box (2), being equipped with air compressor (16), two-stage filter (12,13), membrane module threeway sleeve (1), pressure-reducing valve (11), humidification gas tank (9), spinner flowmeter (8), choke valve (6) along air inlet to leading to successively by appendix (4), the entrance point of appendix (4) and the port of export all pick out outside the casing (2), are filled with PS membrane class hollow-fibre membrane in membrane module threeway sleeve (1).

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