Oxygen generator temperature control system and oxygen generator

Abstract

The application provides an oxygen generator temperature control system and an oxygen generator, and the control system comprises a compressor, a cooling device, a solenoid valve, an adsorber and a gas storage tank, the compressor is connected with the cooling device, the cooling device is connected with the solenoid valve, the solenoid valve is connected with the adsorber, and the adsorber is connected with the gas storage tank; the compressor is used for compressing air and inputting the compressed air into the cooling device, the cooling device is used for refrigerating the compressed air and inputting the refrigerated air into the adsorber through the solenoid valve, the adsorber is used for adsorbing nitrogen in the refrigerated air through a molecular sieve to generate oxygen and inputting the oxygen into the gas storage tank. The application can refrigerate the aluminum pipe through the refrigeration sheet, rapidly dissipate heat of the aluminum pipe, thereby reducing the temperature of the gas, compared with dissipating heat by using the aluminum pipe, the temperature of the control system of the application is controlled constantly, the effect is more obvious, and the service life of the electronic elements in the control system can be well protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical instrument control, and particularly relates to an oxygen generator temperature control system and an oxygen generator. BACKGROUND

[0002] The oxygen generator is commonly a pressure swing adsorption oxygen generator, which is characterized by using zeolite molecular sieve to adsorb different gases according to different adsorption characteristics, adsorbing nitrogen at high pressure to obtain oxygen, desorbing nitrogen at low pressure, and regenerating the molecular sieve. The adsorption and desorption of nitrogen are alternately completed in sequence, so that oxygen can be obtained continuously.

[0003] In the prior art, the cooling device of the oxygen generator is an aluminum pipe or a copper pipe about one meter long, and the heat dissipation effect is not ideal. The gas temperature is relatively high, usually reaching 65-80 degrees, which can easily cause damage to the electromagnetic valve, flow meter, concentration meter and other devices inside the oxygen generator. Long-term high temperature can also cause the molecular sieve to lose adsorption effectiveness, thereby affecting the oxygen concentration. SUMMARY

[0004] Therefore, the present application aims to overcome the deficiencies in the prior art, and provides an oxygen generator temperature control system and an oxygen generator.

[0005] The present application provides the following technical solutions:

[0006] In a first aspect, the present application provides an oxygen generator temperature control system, comprising:

[0007] a compressor, a cooling device, an electromagnetic valve, an adsorber and a gas storage tank, the compressor being connected with the cooling device, the cooling device being connected with the electromagnetic valve, the electromagnetic valve being connected with the adsorber, and the adsorber being connected with the gas storage tank;

[0008] The compressor is used to compress air and input the compressed air into the cooling device.

[0009] The cooling device comprises a refrigeration fin, an aluminum block, an aluminum pipe, a temperature sensor and a refrigeration device, the aluminum pipe being connected with the compressor, the aluminum pipe, the refrigeration fin and the temperature sensor all being connected with the aluminum block, the temperature sensor being connected with the refrigeration device, and the refrigeration device being connected with the refrigeration fin.

[0010] After the compressor inputs the compressed air into the aluminum pipe, the temperature of the aluminum pipe and the aluminum block connected with the aluminum pipe rises. When the temperature of the aluminum block detected by the temperature sensor exceeds a preset temperature, a start signal is sent to the refrigeration device. The refrigeration device starts to refrigerate the refrigeration fin according to the start signal. The refrigeration fin refrigerates the aluminum pipe, so that the compressed air in the aluminum pipe is refrigerated, and the refrigerated air is input into the adsorber through the electromagnetic valve.

[0011] The adsorber is used to adsorb nitrogen in the refrigeration air by molecular sieve to generate oxygen, and the oxygen is input into the gas storage tank.

[0012] In one embodiment, the cooling device further comprises a drain pipe, the aluminum block comprises a mounting groove, the aluminum pipe and the drain pipe are both mounted in the mounting groove, and the drain pipe is used to collect condensed water generated when the aluminum pipe cools the compressed air.

[0013] In one embodiment, the cooling device further comprises a tee joint, the drain pipe comprises a first silica gel pipe, a second silica gel pipe and a third silica gel pipe, one end of the first silica gel pipe and one end of the second silica gel pipe are respectively mounted at two ends of the mounting groove, the other end of the first silica gel pipe and the other end of the second silica gel pipe are both connected with one end of the tee joint, the other end of the tee joint is connected with the third silica gel pipe, and the third silica gel pipe is used to drain the condensed water collected by the first silica gel pipe and the second silica gel pipe out of the cooling device.

[0014] In one embodiment, the control system further comprises a filtering device, one end of the filtering device is connected with an air input pipeline, and the other end of the filtering device is connected with the compressor, so as to filter the air input by the air input pipeline and input the filtered air into the compressor.

[0015] In one embodiment, the control system further comprises an air inlet silencer, one end of the air inlet silencer is connected with the filtering device, and the other end of the air inlet silencer is connected with the compressor, so as to silence the filtered air.

[0016] In one embodiment, the adsorber comprises a first adsorber and a second adsorber, both the first adsorber and the second adsorber are used to adsorb nitrogen in the refrigeration air to generate oxygen, and input the oxygen into the gas storage tank.

[0017] The electromagnetic valve comprises a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is used to control the connection between the first adsorber and the refrigeration equipment, and the second electromagnetic valve is used to control the connection between the second adsorber and the refrigeration equipment.

[0018] When the first working duration of the first adsorber reaches a preset duration, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the first adsorber discharges the adsorbed nitrogen, and the second adsorber starts to work.

[0019] When the second working duration of the second adsorber reaches the preset duration, the second electromagnetic valve is closed, the first electromagnetic valve is opened, the second adsorber discharges the adsorbed nitrogen, and the first adsorber starts to work.

[0020] In one embodiment, the control system further comprises a nitrogen exhaust muffler connected to the first adsorber and the second adsorber for muffling when the first adsorber or the second adsorber exhausts the nitrogen.

[0021] In one embodiment, the control system further comprises an exhaust pipe connected to the gas storage tank and a pressure regulating valve arranged on the exhaust pipe for regulating the oxygen pressure when the gas storage tank outputs oxygen.

[0022] In one embodiment, the control system further comprises a flow valve arranged on the exhaust pipe for regulating the oxygen flow when the gas storage tank outputs oxygen.

[0023] In a second aspect, the present application provides an oxygen generator comprising the oxygen generator temperature control system according to the first aspect.

[0024] The embodiments of the present application have the following beneficial effects:

[0025] The oxygen generator temperature control system provided by the present application can quickly dissipate heat from the aluminum pipe through the refrigeration sheet, thereby reducing the temperature of the gas. Compared with the conventional aluminum pipe heat dissipation method, the control system provided by the present application can control the temperature constantly and has a more obvious effect, which can well protect the service life of the electronic components inside the control system.

[0026] In order to make the above objectives, characteristics and advantages of the present application more apparent and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 Fig. 1 shows a schematic diagram of the framework structure of an oxygen generator temperature control system;

[0029] Figure 2 Fig. 2 shows a schematic diagram of the mechanical structure of a cooling device;

[0030] Figure 3 Fig. 3 shows a schematic diagram of the mechanical structure of an oxygen generator temperature control system.

[0031] Explanation of main element symbols:

[0032] 1 compressor; 2 cooling device; 3 electromagnetic valve; 4 adsorber; 5 gas storage tank; 6 filter device; 7 intake silencer; 8 exhaust port; 9 pressure regulating valve; 10 flow valve; 11 housing; 12 nitrogen discharge silencer; 13 concentration meter; 14 oxygen discharge port; 15 side intake port; 16 bottom intake port; 21 refrigeration fin; 22 aluminum block; 23 aluminum pipe; 24 temperature sensor; 25 drain pipe; 26 tee joint; 41 first adsorber; 42 second adsorber. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the attached drawings. The embodiments described below are examples of the present application and are not intended to limit the present application. The same or similar components are denoted by the same or similar reference numerals throughout the drawings.

[0034] It is understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, although the terms "first," "second," etc. can be used herein to describe various elements, these elements should not be limited by these terms since the elements can be identified in other ways.

[0035] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, the terms "first", "second", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is used only for the purpose of describing particular embodiments and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] Referring to Figure 1 , Figure 1 A schematic diagram of a framework structure of an oxygen generator temperature control system is provided for the present embodiment. The control system can be used for temperature control of an oxygen generator, and can also be used for other devices similar to the principle of temperature control of an oxygen generator. The control system comprises:

[0039] A compressor 1, a cooling device 2, a solenoid valve 3, an adsorber 4 and a gas storage tank 5, wherein the compressor 1 is connected to the cooling device 2, the cooling device 2 is connected to the solenoid valve 3, the solenoid valve 3 is connected to the adsorber 4, and the adsorber 4 is connected to the gas storage tank 5;

[0040] The compressor 1 is used to compress air and input the compressed air to the cooling device 2;

[0041] The cooling device 2 is used to cool the compressed air and input the cooled air to the adsorber 4 through the solenoid valve 3;

[0042] The adsorber 4 is used to generate oxygen by adsorbing nitrogen in the cooled air through molecular sieve, and input the oxygen into the gas storage tank 5. For other trace gases in the air, since the composition is extremely small, it does not affect normal use, and users can also choose not to process.

[0043] The present embodiment cools the compressed air through the cooling device 2, and generates oxygen according to the cooled air, thereby realizing temperature control of oxygen of the oxygen generator.

[0044] Referring to Figure 2 , Figure 2 A schematic diagram of a mechanical structure of the cooling device 2 is provided for the present embodiment.

[0045] The cooling device 2 comprises a cooling fin 21, an aluminum block 22, an aluminum pipe 23, a temperature sensor 24 and a refrigerator, wherein the aluminum pipe 23 is connected to the compressor 1, the aluminum pipe 23, the cooling fin 21 and the temperature sensor 24 are all connected to the aluminum block 22, the temperature sensor 24 is connected to the refrigerator, and the refrigerator is connected to the cooling fin 21;

[0046] When the compressor 1 inputs the compressed air into the aluminum pipe 23, the temperature of the aluminum pipe 23 and the aluminum block 22 connected with the aluminum pipe 23 increases. When the temperature sensor 24 detects that the temperature of the aluminum block 22 exceeds the preset temperature, the temperature sensor 24 sends a starting signal to the refrigerating device. The refrigerating device starts to refrigerate the refrigerating sheet 21 according to the starting signal. The refrigerating sheet 21 refrigerates the aluminum pipe 23, so that the compressed air in the aluminum pipe 23 is refrigerated, and the refrigerated air is input into the adsorber 4 through the electromagnetic valve 3.

[0047] The temperature of the compressed air increases after the compressor 1 compresses the air. If the compressed air is directly input into the adsorber 4, the service life of the molecular sieve in the adsorber 4 or the service life of other elements may be affected.

[0048] Therefore, when the temperature of the aluminum pipe 23 and the aluminum block 22 increases due to the compressed air, if the temperature sensor 24 detects that the temperature of the aluminum block 22 is at a normal level, the refrigeration is not performed. When the temperature of the aluminum block 22 exceeds the preset temperature, it indicates that the temperature of the compressed air is too high at this time. The temperature sensor 24 sends a starting signal to the refrigerating device. The starting signal can be an electrical signal or a digital signal. After the refrigerating device receives the starting signal, the refrigerating device works to refrigerate the refrigerating sheet 21. Since the refrigerating sheet 21 is connected with the aluminum pipe 23, the temperature of the aluminum pipe 23 also decreases, so that the temperature of the compressed air in the aluminum pipe 23 decreases, thereby realizing the refrigeration of the compressed air, and protecting the service life of the elements in the control system and the molecular sieve in the adsorber 4.

[0049] In an embodiment, the cooling device 2 further comprises a drain pipe 25. The aluminum block 22 comprises a mounting groove. The aluminum pipe 23 and the drain pipe 25 are both mounted in the mounting groove. The drain pipe 25 is used to collect the condensed water generated when the aluminum pipe 23 refrigerates the compressed air.

[0050] When the compressed air in the aluminum pipe 23 is refrigerated, due to the temperature difference between the air inside and outside the aluminum pipe 23, a part of the condensed water is gathered on the outer wall of the aluminum pipe 23. Therefore, after the aluminum pipe 23 is mounted in the mounting groove, a drain pipe 25 is mounted below the aluminum pipe 23 in the mounting groove. The upper half of the drain pipe 25 can be provided as an open structure, so that the condensed water can be discharged through the drain pipe 25, thereby avoiding the influence of the condensed water on the refrigeration effect of the cooling device 2. In order to save materials, the mounting groove can be directly used as the drain pipe 25, and the condensed water can be directly discharged through the mounting groove.

[0051] In an embodiment, the cooling device 2 further comprises a three-way joint 26, the drain pipe 25 comprises a first silica gel pipe, a second silica gel pipe and a third silica gel pipe, one end of the first silica gel pipe and one end of the second silica gel pipe are respectively installed at both ends of the installation groove, the other end of the first silica gel pipe and the other end of the second silica gel pipe are both connected with one end of the three-way joint 26, the other end of the three-way joint 26 is connected with the third silica gel pipe, and the third silica gel pipe is used to drain the condensed water collected by the first silica gel pipe and the second silica gel pipe out of the cooling device 2.

[0052] When the drain pipe 25 is provided, the first silica gel pipe and the second silica gel pipe can be connected to both sides of the drain pipe 25 respectively, and when the drain pipe 25 is not provided, the first silica gel pipe and the second silica gel pipe are directly connected to both sides of the installation groove. No matter which side the condensed water flows out, it can be collected through the first silica gel pipe or the second silica gel pipe, and then drained through the third silica gel pipe, so that the influence of the condensed water accumulation on the refrigeration effect of the cooling device 2 can be avoided.

[0053] Referring to Figure 3 , Figure 3 A mechanical structure schematic diagram of an oxygen generator temperature control system is provided for the embodiment.

[0054] The control system further comprises a filtering device 6, one end of the filtering device 6 is connected with the air input pipeline, and the other end of the filtering device 6 is connected with the compressor 1, which is used to filter the air input by the air input pipeline and input the filtered air into the compressor 1.

[0055] Since dust, water vapor and various impurities may exist in the external air, before the air is input into the compressor 1, a filtering device 6 can be arranged to filter the impurities in the air, so as to avoid the influence of the impurities on the work of the compressor 1 or the concentration and purity of the oxygen.

[0056] In an embodiment, the control system further comprises a side air inlet 15 and a bottom air inlet 16, which can ensure the air intake demand of the compressor 1 and also can take away the heat inside the instrument.

[0057] In an embodiment, the control system further comprises an air intake silencing device 7, one end of the air intake silencing device 7 is connected with the filtering device 6, and the other end of the air intake silencing device 7 is connected with the compressor 1, which is used to silence the filtered air.

[0058] Since the compressor 1 compresses air, a large pressure difference before and after compression will generate air noise, so an air inlet of the compressor 1 can be provided with a silencer for silencing air noise, so that air compression is noise-free, improving user experience.

[0059] In an embodiment, the adsorber 4 includes a first adsorber 41 and a second adsorber 42, both of which are used to adsorb nitrogen in the refrigeration air to generate oxygen and input the oxygen into the gas tank 5.

[0060] The electromagnetic valve 3 includes a first electromagnetic valve 3 and a second electromagnetic valve 3, the first electromagnetic valve 3 is used to control the connection of the first adsorber 41 with the refrigeration equipment, and the second electromagnetic valve 3 is used to control the connection of the second adsorber 42 with the refrigeration equipment.

[0061] When the first working duration of the first adsorber 41 reaches a preset duration, the first electromagnetic valve 3 is closed, the second electromagnetic valve 3 is opened, the first adsorber 41 discharges the adsorbed nitrogen, and the second adsorber 42 starts working.

[0062] When the second working duration of the second adsorber 42 reaches the preset duration, the second electromagnetic valve 3 is closed, the first electromagnetic valve 3 is opened, the second adsorber 42 discharges the adsorbed nitrogen, and the first adsorber 41 starts working.

[0063] Since the adsorber 4 has a certain adsorption limit, the first adsorber 41 and the second adsorber 42 are set to work alternately, and then an electromagnetic valve 3 is set for each of the first adsorber 41 and the second adsorber 42 to control the opening and closing of the first adsorber 41 and the second adsorber 42. When the first electromagnetic valve 3 is opened, the first adsorber 41 starts working to generate oxygen. After the first adsorber 41 works for a period of time, the second electromagnetic valve 3 is opened and the first electromagnetic valve 3 is closed. At this time, the second adsorber 42 starts working to generate oxygen, and the first adsorber 41 discharges the adsorbed nitrogen to facilitate continuous oxygen generation for the next work.

[0064] The embodiment realizes continuous generation of oxygen by using two adsorbers 4, improving the production efficiency of oxygen.

[0065] In an embodiment, the control system further includes a nitrogen discharge silencer 12 connected with the first adsorber 41 and the second adsorber 42 for silencing when the first adsorber 41 or the second adsorber 42 discharges the nitrogen.

[0066] The control system can further comprise an exhaust port 8 connected with the nitrogen exhaust silencer 12, for exhausting the nitrogen in the first adsorber 41 or the second adsorber 42.

[0067] When the first adsorber 41 or the second adsorber 42 exhausts the nitrogen, there is a pressure difference between the first adsorber 41 or the second adsorber 42 and the outside, and the exhaust noise is generated when the nitrogen is exhausted. Therefore, the exhaust noise can be filtered by the nitrogen exhaust silencer 12, so as to reduce the noise pollution and improve the user experience.

[0068] In an embodiment, the control system further comprises an exhaust pipeline connected with the gas storage tank 5 and a pressure regulating valve 9 arranged on the exhaust pipeline, for regulating the oxygen pressure when the gas storage tank 5 outputs the oxygen, wherein the exhaust pipeline and the gas storage tank 5 can be connected through an oxygen outlet 14.

[0069] The exhaust pipeline is used for exhausting the oxygen in the gas storage tank 5. Since the oxygen in the gas storage tank 5 is generally compressed and stored, direct use can easily cause safety accidents. Therefore, a pressure regulating valve 9 can be arranged on the exhaust pipeline, for regulating the oxygen pressure when the oxygen is exhausted, so as to meet the normal use of the user.

[0070] In an embodiment, the control system further comprises a flow valve 10 arranged on the exhaust pipeline, for regulating the oxygen flow when the gas storage tank 5 outputs the oxygen.

[0071] Since the oxygen usage scenarios are different, the oxygen flow is also different. If it is electric welding or other industrial fields, the oxygen flow demand is relatively high. If it is used for patient assisted breathing equipment, the oxygen flow is relatively low, and it also needs to be accurately controlled. Therefore, a flow valve 10 can be arranged on the exhaust pipeline to control the flow when the oxygen flows out, so as to meet the different use requirements of the user.

[0072] In an embodiment, the control system further comprises a concentration meter 13 arranged on the exhaust pipeline, for detecting the oxygen concentration when the gas storage tank 5 outputs the oxygen. The user can accurately know the oxygen production situation of the oxygen production equipment according to the oxygen concentration, so as to timely adjust the data of the oxygen production equipment, so that the oxygen concentration meets the actual demand.

[0073] In an embodiment, the control system further comprises a shell 11 arranged on the periphery of other components of the control system, for protecting the components of the control system.

[0074] In an embodiment, the application also provides an oxygen generator comprising the oxygen generator temperature control system as described in any of the above embodiments, thus the oxygen generator also comprises all the features and advantages of the oxygen generator temperature control system as described above.

[0075] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not limiting, and thus other examples of the example embodiments can have different values.

[0076] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it is not necessary to further define and explain it in the subsequent views.

[0077] The above described embodiments are merely illustrative of several ways to make and use the present application and that this description should not be deemed to limit the scope of the application in any way. It should be noted that, for the present application, several modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the application.

Claims

1. An oxygen concentrator temperature control system, characterized in that: include: A compressor, a cooling device, a solenoid valve, an adsorber, and an air storage tank, wherein the compressor is connected to the cooling device, the cooling device is connected to the solenoid valve, the solenoid valve is connected to the adsorber, and the adsorber is connected to the air storage tank; The compressor is used to compress the air and input the compressed air into the cooling device; The cooling device includes a refrigeration fin, an aluminum block, an aluminum tube, a temperature sensor and a refrigerator, wherein the aluminum tube is connected to the compressor, the aluminum tube, the refrigeration fin and the temperature sensor are all connected to the aluminum block, the temperature sensor is connected to the refrigerator, and the refrigerator is connected to the refrigeration fin; After the compressor inputs the compressed air into the aluminum tube, the temperature of the aluminum tube and the aluminum block connected to the aluminum tube increases. When the temperature sensor detects that the temperature of the aluminum block exceeds a preset temperature, it sends a start signal to the refrigerator. The refrigerator is started according to the start signal to cool the refrigeration plate. The refrigeration plate cools the aluminum tube, so that the compressed air in the aluminum tube is cooled, and the cooled air is input into the adsorber through the solenoid valve. The adsorber is used to adsorb nitrogen in the refrigerated air through a molecular sieve to generate oxygen, and input the oxygen into the gas storage tank; The cooling device further includes: a drain pipe, the aluminum block includes a mounting groove, the aluminum tube and the drain pipe are both mounted in the mounting groove, and the drain pipe is used to collect condensed water generated when the aluminum tube cools the compressed air; The cooling device also includes: a three-way joint, the drain pipe includes a first silicone tube, a second silicone tube and a third silicone tube, one end of the first silicone tube and one end of the second silicone tube are respectively installed at the two ends of the installation groove, the other end of the first silicone tube and the other end of the second silicone tube are both connected to one end of the three-way joint, and the other end of the three-way joint is connected to the third silicone tube, and the third silicone tube is used to discharge the condensed water collected by the first silicone tube and the second silicone tube out of the cooling device.

2. The oxygen concentrator temperature control system according to claim 1, characterized in that: The control system further comprises a filter device, one end of which is connected to the air input pipe, and the other end of which is connected to the compressor, for filtering the air inputted from the air input pipe and inputting the filtered air into the compressor.

3. The oxygen concentrator temperature control system according to claim 2, characterized in that: The control system further includes an air intake silencer, one end of which is connected to the filter device, and the other end of which is connected to the compressor, for silencing the filtered air.

4. The oxygen concentrator temperature control system according to claim 1, characterized in that: The adsorber includes a first adsorber and a second adsorber, wherein the first adsorber and the second adsorber are both used for adsorbing nitrogen in the refrigerated air to generate oxygen, and inputting the oxygen into the gas storage tank; The solenoid valve includes a first solenoid valve and a second solenoid valve, the first solenoid valve is used to control the connection between the first adsorber and the cooling device, and the second solenoid valve is used to control the connection between the second adsorber and the cooling device; When the first operating time of the first adsorber reaches a preset time, the first solenoid valve is closed, the second solenoid valve is opened, the first adsorber discharges the adsorbed nitrogen, and the second adsorber starts working; When the second operating time of the second adsorber reaches the preset time, the second solenoid valve is closed, the first solenoid valve is opened, the second adsorber discharges the adsorbed nitrogen, and the first adsorber starts to work.

5. The oxygen concentrator temperature control system according to claim 4, characterized in that: The control system further includes a nitrogen exhaust silencing device connected to the first adsorber and the second adsorber, and configured to perform silencing when the first adsorber or the second adsorber discharges nitrogen.

6. The oxygen concentrator temperature control system according to claim 1, characterized in that: The control system further includes an exhaust pipe and a pressure regulating valve. The exhaust pipe is connected to the gas storage tank. The pressure regulating valve is arranged on the exhaust pipe and is used to adjust the oxygen pressure when the gas storage tank outputs oxygen.

7. The oxygen concentrator temperature control system according to claim 6, characterized in that: The control system further comprises a flow valve, which is arranged on the exhaust pipe and is used to adjust the oxygen flow rate when the gas storage tank outputs oxygen.

8. An oxygen concentrator, characterized in that: The oxygen concentrator comprises the temperature control system according to any one of claims 1 to 7.

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