CN217410270U

CN217410270U - Small-size three adsorption tower system oxygen system

Info

Publication number: CN217410270U
Application number: CN202221597836.0U
Authority: CN
Inventors: 张赟; 吕婷; 李春贺; 王军政; 刘旭山; 宫立国; 孙旭东; 刘伟
Original assignee: Mingshi Innovation Industry Technology Research Institute Co ltd; Mingshi Innovation Yantai Micro Nano Sensor Technology Research Institute Co ltd
Current assignee: Mingshi Innovation Industry Technology Research Institute Co ltd; Mingshi Innovation Yantai Micro Nano Sensor Technology Research Institute Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-13
Anticipated expiration: 2032-06-23

Abstract

The utility model belongs to the technical field of the oxygen generation equipment, concretely relates to small-size three adsorption tower system oxygen systems, including air cleaner, adsorption tower molecular sieve, system oxygen system controller, the last air compressor that is provided with of air cleaner, the last cooler that is provided with of air compressor, be provided with two-position three way solenoid valve on the cooler, two-position three way solenoid valve links to each other with the adsorption tower molecular sieve, be provided with the check valve of taking capillary hole on the adsorption tower molecular sieve. The utility model discloses a be provided with and adopt three adsorption tower molecular sieve to prepare oxygen, need not to set up the oxygen buffer tank, the oxygen rate of recovery simultaneously obtains promoting by a wide margin, and the noise of taking a breath reduces by a wide margin, under the prerequisite of guaranteeing oxygen concentration, reduces single adsorption tower height by a wide margin, has saved a large amount of installation space, and it is low to have solved current oxygen system oxygen rate of recovery, and the noise is big, and is bulky, and must set up the shortcoming of oxygen tank buffering.

Description

Small-size three adsorption tower system oxygen system

Technical Field

The utility model relates to an oxygen generating equipment technical field specifically is a small-size three adsorption tower system oxygen system.

Background

An oxygen making system of an adsorption tower is a system which utilizes the pressure swing adsorption principle of molecular sieves to produce oxygen with the concentration of 93 plus or minus 3 percent by separating nitrogen and oxygen in the atmosphere and directly provides oxygen for an anoxic patient to inhale. The system is generally composed of an air compressor, a cooler, an adsorption tower molecular sieve separation system, an oxygen buffer tank, an output flow control display device, an oxygen concentration monitoring device, a timing device and an alarm system.

The existing small molecular sieve oxygen generation system generally adopts two adsorption towers to respectively carry out the same cycle process, one adsorption tower is fed with air and adsorbs to generate oxygen, the other adsorption tower utilizes finished product oxygen to reversely blow the molecular sieve to complete a cycle period, and then the molecular sieve is buffered by an oxygen buffer tank to realize continuous air supply.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a small-size three adsorption tower system oxygen system has solved current system oxygen recovery rate low, and the noise is big, and is bulky, and must set up the shortcoming of oxygen cylinder buffering.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a small-size three adsorption tower system oxygen systems, includes air cleaner, adsorption tower molecular sieve, system oxygen system controller, the last air compressor that is provided with of air cleaner, the last cooler that is provided with of air compressor, be provided with two-position three way solenoid valve on the cooler, two-position three way solenoid valve links to each other with the adsorption tower molecular sieve, be provided with the check valve of taking the capillary hole on the adsorption tower molecular sieve, be provided with pressure sensor on the system oxygen system controller, the last glass rotameter that is provided with of pressure sensor, all be provided with flow pressure regulating valve on taking the capillary hole check valve and the pressure sensor.

Preferably, the adsorption tower molecular sieve includes molecular sieve hold-down spring, water conservancy diversion orifice plate, crosses filter pulp, oxygen generation molecular sieve, molecular sieve drier, the both ends of molecular sieve drier are provided with the water conservancy diversion orifice plate respectively and cross the filter pulp, the lower extreme of water conservancy diversion orifice plate is provided with another cross the filter pulp, cross and be provided with another on the filter pulp the water conservancy diversion orifice plate, another be provided with molecular sieve hold-down spring on the water conservancy diversion orifice plate, another the lower extreme of crossing the filter pulp is provided with the oxygen generation molecular sieve, through the design of adsorption tower molecular sieve, can carry out adsorption treatment to nitrogen gas.

Preferably, the check valve with the capillary holes comprises a check valve body, a check valve core, a check valve spring and a check valve core capillary hole, wherein the check valve core is arranged inside the check valve body, the check valve spring is arranged inside the check valve body, and the flow of nitrogen can be controlled by the design of the check valve with the capillary holes.

Preferably, an exhaust silencer is arranged between the two-position three-way electromagnetic valve and the adsorption tower molecular sieve, and exhaust noise can be reduced through the design of the exhaust silencer.

Preferably, one end of the one-way valve spring is in contact with the one-way valve core, the other end of the one-way valve spring is in contact with the one-way valve body, and the one-way valve core can be driven to move through the design of the one-way valve spring.

Preferably, the one-way valve plug is provided with a plurality of one-way valve plug pores, and the one-way valve plug pores have the characteristics of corrosion resistance and high strength.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a be provided with and adopt three adsorption tower molecular sieve to prepare oxygen, need not to set up the oxygen buffer tank, the oxygen rate of recovery simultaneously obtains promoting by a wide margin, and the noise of taking a breath reduces by a wide margin, under the prerequisite of guaranteeing oxygen concentration, reduces single adsorption tower height by a wide margin, has saved a large amount of installation space, and it is low to have solved current oxygen system oxygen rate of recovery, and the noise is big, and is bulky, and must set up the shortcoming of oxygen tank buffering.

2. The utility model discloses an adopt the check valve to go out oxygen, oxygen pressure can reach 200kPa within range adjustable, and the actual measurement of oxygen flow accords with the design standard.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the adsorption tower molecular sieve in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the internal structure of the check valve with capillary holes in fig. 1 according to the present invention.

In the figure: 1. an air filter; 2. an air compressor; 3. a cooler; 4. a two-position three-way electromagnetic valve; 5. an exhaust muffler; 6. adsorption tower molecular sieve; 7. a check valve with capillary holes; 8. a flow pressure regulating valve; 9. a pressure sensor; 10. a glass rotameter; 11. an oxygen generation system controller; 12. a molecular sieve hold-down spring; 13. a flow-guiding orifice plate; 14. filtering cotton; 15. an oxygen generating molecular sieve; 16. a molecular sieve desiccant; 17. a one-way valve body; 18. a one-way valve spool; 19. a check valve spring; 20. one-way valve core capillary.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a small-sized oxygen generation system with three adsorption towers comprises an air filter 1, an adsorption tower molecular sieve 6 and an oxygen generation system controller 11, wherein the air filter 1 is provided with an air compressor 2, the air compressor 2 is provided with a cooler 3, the cooler 3 is provided with a two-position three-way electromagnetic valve 4, the two-position three-way electromagnetic valve 4 is connected with the adsorption tower molecular sieve 6, an exhaust silencer 5 is arranged between the two-position three-way electromagnetic valve 4 and the adsorption tower molecular sieve 6, and exhaust noise can be reduced through the design of the exhaust silencer 5.

Referring to fig. 1 and 2, the adsorption tower molecular sieve 6 includes a molecular sieve compression spring 12, a flow guide pore plate 13, filter cotton 14, an oxygen generation molecular sieve 15, and a molecular sieve desiccant 16, wherein two ends of the molecular sieve desiccant 16 are respectively provided with the flow guide pore plate 13 and the filter cotton 14, the lower end of the flow guide pore plate 13 is provided with another filter cotton 14, the filter cotton 14 is provided with another flow guide pore plate 13, the other flow guide pore plate 13 is provided with the molecular sieve compression spring 12, the lower end of the other filter cotton 14 is provided with the oxygen generation molecular sieve 15, and nitrogen can be adsorbed by the design of the adsorption tower molecular sieve 6.

Referring to fig. 1 and 3, a one-way valve 7 with capillary holes is arranged on an adsorption tower molecular sieve 6, the one-way valve 7 with capillary holes comprises a one-way valve body 17, a one-way valve core 18, a one-way valve spring 19 and one-way valve core capillary holes 20, the one-way valve core 18 is arranged inside the one-way valve body 17, the one-way valve spring 19 is arranged inside the one-way valve body 17, one end of the one-way valve spring 19 is in contact with the one-way valve core 18, the other end of the one-way valve spring 19 is in contact with the one-way valve body 17, the one-way valve core 18 can be driven to move by the design of the one-way valve spring 19, the nitrogen flow can be controlled by the design of the one-way valve 7 with capillary holes, the one-way valve core capillary holes 20 are arranged on the one-way valve core 18, the number of the one-way valve core capillary holes 20 is multiple, the one-way valve core capillary holes 20 have corrosion-resistant and high-strength oxygen production characteristics, and a pressure sensor 9 is arranged on a controller 11 of the one-way valve core, the pressure sensor 9 is provided with a glass rotameter 10, and the check valve 7 with the capillary hole and the pressure sensor 9 are both provided with a flow pressure regulating valve 8.

The utility model discloses specific implementation process as follows: the oxygen generation principle of the tower attached oxygen generation system is that the molecular sieve 6 of the adsorption tower is divided into a first tower, a second tower and a third tower; taking tower I as an example, the specific working process is as follows: 1. adsorption: inside compressed air entered into I tower through two-position three way reversing valve 4, along with the continuous promotion of pressure in I tower of adsorption tower, nitrogen gas was adsorbed, oxygen passed I tower of adsorption tower after, through the I tower of check valve 7 discharge of taking capillary hole, most oxygen can flow out through going out the oxygen pipeline, a small amount of oxygen can be by II towers III towers of reverse entering II towers of capillary hole's check valve 7 of III tower lower extremes in area capillary hole, carry out the sweeping of remaining nitrogen gas to II towers III towers. 2. Pressure equalizing and reducing: before the oxygen concentration breakthrough point of tower I oxygen output end did not appear, two-position three way reversing valve 4 of II towers opened a short period of time simultaneously, made I tower atmospheric pressure before flow into II towers together with front end pipeline compressed air, made I tower pressure descend in the twinkling of an eye, II tower pressure promote in the twinkling of an eye, utilized I tower pressure to reach the purpose that reduces the energy consumption. 3. Emptying: in the stage, the two-position three-way reversing valve 4 of the tower I is used for reversing to ensure that the tower I is directly connected with the external atmosphere, the pressure is lowest, and the nitrogen adsorbed by the molecular sieve is desorbed along with the pressure reduction of the tower I and is directly discharged into the atmosphere through the steam exhaust silencer 5. 4. Purging and cleaning: in the stage I, the tower is communicated with the atmosphere continuously through the two-position three-way reversing valve 4, oxygen generated by the tower II reversely enters the tower I through the capillary hole of the one-way valve 7 with the capillary hole at the lower end of the tower I, and the nitrogen participating in the tower I is blown, cleaned and regenerated, so that the molecular sieve in the tower I is ready for next pressure-increasing adsorption. 5. Pressure equalization and rise: before the oxygen concentration penetration point of the oxygen outlet end of the tower III in the stage does not appear, the two-position three-way reversing valve 4 of the tower I is opened for a short period of time simultaneously, so that the air pressure of the front tower III flows into the tower I together with the compressed air of the front end pipeline, the pressure of the tower III is reduced instantly, the pressure of the tower I is increased instantly, and the purpose of reducing the energy consumption is achieved by utilizing the pressure of the tower III.

The steps are repeated in the same way as the steps I, II, III and III. When the tower I is used for producing oxygen, the tower I boosts the pressure of the tower II and simultaneously cleans the tower III; correspondingly, when the second tower is used for generating oxygen, the second tower is used for boosting the pressure of the third tower and cleaning the first tower; when the tower III is used for oxygen generation, the tower III is used for boosting the pressure of the tower I and cleaning the tower II. Thus, the colloid in the first, second and third towers is used for preparing oxygen, and the system can be ensured to continuously produce oxygen.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a small-size three adsorption tower system oxygen system, includes air cleaner (1), adsorption tower molecular sieve (6), system oxygen system controller (11), its characterized in that: be provided with air compressor (2) on air cleaner (1), be provided with cooler (3) on air compressor (2), be provided with two-position three way solenoid valve (4) on cooler (3), two-position three way solenoid valve (4) link to each other with adsorption tower molecular sieve (6), be provided with on adsorption tower molecular sieve (6) take fine hair pore check valve (7), be provided with pressure sensor (9) on system oxygen controller (11), be provided with glass rotameter (10) on pressure sensor (9), all be provided with flow pressure regulating valve (8) on take fine hair pore check valve (7) and pressure sensor (9).

2. The small scale three adsorption tower oxygen generation system of claim 1, wherein: adsorption tower molecular sieve (6) are including molecular sieve pressure spring (12), water conservancy diversion orifice plate (13), filter pulp (14), oxygen generation molecular sieve (15), molecular sieve drier (16), the both ends of molecular sieve drier (16) are provided with water conservancy diversion orifice plate (13) and filter pulp (14) respectively, the lower extreme of water conservancy diversion orifice plate (13) is provided with another filter pulp (14), be provided with another on filter pulp (14) water conservancy diversion orifice plate (13), another be provided with molecular sieve pressure spring (12) on water conservancy diversion orifice plate (13), another the lower extreme of filter pulp (14) is provided with oxygen generation molecular sieve (15).

3. The small scale three adsorption tower oxygen generation system of claim 1, wherein: the check valve (7) with the capillary holes comprises a check valve body (17), a check valve core (18), a check valve spring (19) and a check valve core capillary hole (20), wherein the check valve core (18) is arranged inside the check valve body (17), and the check valve spring (19) is arranged inside the check valve body (17).

4. The small scale three adsorption tower oxygen generation system of claim 1, wherein: an exhaust silencer (5) is arranged between the two-position three-way electromagnetic valve (4) and the adsorption tower molecular sieve (6).

5. The small scale three adsorption tower oxygen generation system of claim 3, wherein: one end of the one-way valve spring (19) is in contact with the one-way valve core (18), and the other end of the one-way valve spring (19) is in contact with the one-way valve body (17).

6. The small scale three adsorption tower oxygen generation system of claim 3, wherein: the valve core (18) of the one-way valve is provided with a plurality of valve core pores (20), and the number of the valve core pores (20) of the one-way valve is multiple.