A direct-acting oxygen-generating valve

Abstract

The present invention discloses a direct-acting oxygen-making valve, which belongs to the technical field of oxygen-making valves. It comprises: a manifold, which is provided with an air inlet channel, an air outlet channel, an exhaust channel and a connecting channel, wherein the air inlet channel is connected to an external compressor, and the air outlet channel is connected to an external molecular sieve; a valve group, which has at least one valve group, comprising an air inlet valve and an exhaust valve, both of which are connected to the manifold, and the air inlet channel, the air inlet valve, the connecting channel, the exhaust valve and the exhaust channel are connected in sequence, and the air outlet channel is connected to the connecting channel. The entire oxygen-making valve can realize zero-pressure start-up, and each valve group can be individually pressure-regulated to achieve the purpose of staggered output, thereby improving the adaptability of the entire oxygen-making valve, and the pressure regulation can also make the gas pressure output into the molecular sieve remain constant, meet the gas pressure requirement of the oxygen concentrator, thereby ensuring that the oxygen-making capacity of the oxygen concentrator is good and the oxygen concentration is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of oxygen-generating valves, and in particular relates to a direct-acting oxygen-generating valve. Background Art

[0002] Oxygen is an indispensable substance for maintaining human life. However, in some special cases, people have to face an environment lacking oxygen or need a higher concentration of oxygen. Based on this demand, oxygen generators are used. Among them, oxygen generator valves are devices that extract oxygen from the air. They use physical adsorption and desorption technologies to adsorb nitrogen in the air, and the remaining unabsorbed oxygen is collected and purified to obtain high-purity clean oxygen.

[0003] The current oxygen generator has some gas remaining inside after each use, which means that each subsequent use requires a minimum starting pressure value to start the valve, which is inconvenient to use. At the same time, the valve body of this oxygen generator often only has the functions of opening and closing, and cannot adjust the pressure during use to meet the pressure requirements of different oxygen generators. Summary of the invention

[0004] The present invention aims at the above problems existing in the prior art and proposes a direct-acting oxygen-making valve which can be started at zero air pressure and can adjust the pressure during use.

[0005] The present invention can be achieved through the following technical solutions:

[0006] A direct-acting oxygen-generating valve, comprising:

[0007] A manifold having an air inlet channel, an air outlet channel, an exhaust channel and a connecting channel, wherein the air inlet channel is connected to an external compressor, and the air outlet channel is connected to an external molecular sieve;

[0008] A valve group, with at least one valve group, comprising an intake valve and an exhaust valve, wherein the intake valve and the exhaust valve are both connected to the manifold, the intake channel, the intake valve, the connecting channel, the exhaust valve and the exhaust channel are connected in sequence, and the outlet channel is connected to the connecting channel.

[0009] As a further improvement of the present invention, the air intake valve comprises an air intake valve inlet, an air intake valve cavity and an air intake valve outlet, and the air intake valve inlet is connected to the air intake valve outlet through the air intake valve cavity.

[0010] As a further improvement of the present invention, the exhaust valve comprises an exhaust valve air inlet, an exhaust valve cavity and an exhaust valve air outlet, and the exhaust valve air inlet is connected to the exhaust valve air outlet through the exhaust valve cavity.

[0011] As a further improvement of the present invention, the baffle plate is further provided with a baffle plate air inlet, and both ends of the air inlet channel are respectively connected to the baffle plate air inlet and the air inlet of the air inlet valve.

[0012] As a further improvement of the present invention, the baffle plate is further provided with a baffle plate air outlet, and both ends of the air outlet channel are respectively connected to the connecting channel and the baffle plate air outlet.

[0013] As a further improvement of the present invention, the baffle plate is further provided with a baffle plate exhaust port, and both ends of the exhaust channel are respectively connected to the exhaust valve outlet and the baffle plate exhaust port.

[0014] As a further improvement of the present invention, when the number of the valve groups is plural, the air inlet of each of the air inlet valves is communicated with the air inlet passage, and the air outlet of each of the air exhaust valves is communicated with the exhaust passage.

[0015] As a further improvement of the present invention, it also includes a sealing steel ball, which is placed in the connecting channel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the oxygen production work is completed, close the air inlet valve and only open the exhaust valve to discharge the residual gas inside the entire oxygen production valve from the exhaust channel to the outside, ensuring that the air pressure inside the oxygen production valve is equal to the external air pressure, so that the purpose of zero air pressure start can be achieved when the oxygen production work is carried out next time.

[0018] 2. When the pressure entering the molecular sieve is insufficient, close the exhaust valve and only open the intake valve until the gas pressure entering the molecular sieve meets the pressure requirement; when the pressure meets the pressure requirement of the oxygen concentrator, the gas pressure entering the molecular sieve needs to be stabilized, then open the exhaust valve to continuously discharge part of the gas to the outside, and keep the intake and exhaust volumes constant by adjusting the pressure, thereby achieving the purpose of stabilizing the pressure, thereby ensuring that the oxygen concentrator has a good oxygen production capacity and increasing the oxygen concentration.

[0019] 3. The number of valve groups can be set according to actual needs, and each valve group can be individually pressure-regulated, so that the air pressure output by one valve group is suitable for an oxygen concentrator with a pressure corresponding to a certain requirement, and the air pressure output by another valve group is suitable for an oxygen concentrator with a pressure corresponding to another requirement, and so on, thereby achieving the purpose of staggered output and improving the adaptability of the entire oxygen concentrator.

[0020] 4. By adjusting the air intake of the air intake valve and the air outlet of the air outlet valve, the purpose of fast air intake, slow air intake, smooth air intake or separate exhaust can be achieved according to actual needs, which is more flexible in use.

[0021] 5. Use a sealing steel ball to block the end of the connecting channel that is connected to the outside world to ensure that the oxygen valve is well sealed and there is no air leakage, thereby ensuring the stability of the pressure output. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the direct-acting oxygen-making valve of the present invention;

[0023] Figure 2 The present invention Figure 1 A schematic diagram of the structure from another perspective;

[0024] Figure 3 It is a cross-sectional view of the air inlet channel, the connecting channel and the air outlet channel of the direct-acting oxygen-generating valve of the present invention;

[0025] Figure 4 is a cross-sectional view of an air intake passage and an air intake valve of a direct-acting oxygen-generating valve of the present invention;

[0026] Figure 5 It is a cross-sectional view of the exhaust valve and the exhaust passage of the direct-acting oxygen-generating valve of the present invention.

[0027] In the figure, 100, manifold; 101, manifold air inlet; 102, manifold air outlet; 103, manifold exhaust port; 110, air inlet channel; 120, air outlet channel; 130, exhaust channel; 140, connecting channel; 150, sealing steel ball; 200, valve group; 210, air inlet valve; 211, air inlet port of air inlet valve; 212, air outlet of air inlet valve; 220, exhaust valve; 221, air inlet port of exhaust valve; 222, air outlet of exhaust valve. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figure 1-5 The present invention provides a direct-acting oxygen-generating valve, comprising:

[0030] The conduit plate 100 is provided with an air inlet channel 110, an air outlet channel 120, an exhaust channel 130 and a connecting channel 140. The air inlet channel 110 is connected to an external compressor (not shown in the figure), and the air outlet channel 120 is connected to an external oxygen generator molecular sieve (not shown in the figure). The compressor delivers gas into the air inlet channel 110 and outputs it to the oxygen generator molecular sieve, while the gas in the conduit plate 100 can be discharged to the outside through the exhaust channel 130.

[0031] The valve group 200 is provided with at least one valve group 200, and includes an inlet valve 210 and an exhaust valve 220. The inlet valve 210 and the exhaust valve 220 are both connected to the manifold 100. The inlet channel 110, the inlet valve 210, the connecting channel 140, the exhaust valve 220 and the exhaust channel 130 are sequentially connected, and the outlet channel 120 is connected to the connecting channel 140. That is to say, when the oxygen generator needs to perform oxygen production, the external compressor is turned on, and the compressed gas passes through the inlet channel 110, the inlet valve 210, the connecting channel 140, and the outlet channel 120 in sequence and enters the molecular sieve of the oxygen generator to perform oxygen production. After the oxygen production work is completed, the inlet valve 210 is closed, and only the exhaust valve 220 is opened to discharge the residual gas inside the entire oxygen generator from the exhaust channel 130 to the outside, ensuring that the air pressure inside the oxygen generator is equal to the air pressure outside, thereby achieving the purpose of zero air pressure start when the oxygen production work is performed next time.

[0032] Because the air inlet valve 210 and the air exhaust valve 220 in the present embodiment can be opened or closed separately, the pressure can be continuously adjusted during the oxygen production process to meet the pressure requirement of the oxygen generator. For example, when the pressure entering the molecular sieve is insufficient, the exhaust valve 220 is closed and only the air inlet valve 210 is opened until the pressure of the gas entering the molecular sieve meets the pressure requirement. When the pressure meets the pressure requirement of the oxygen generator, it is necessary to stabilize the pressure of the gas entering the molecular sieve, then the exhaust valve 220 is opened to continuously discharge part of the gas to the outside, so that the air intake and exhaust volumes are kept constant, thereby achieving the purpose of stabilizing the pressure, thereby ensuring that the oxygen production capacity of the oxygen generator is good and the oxygen concentration is increased. At the same time, by adjusting the air intake volume of the air inlet valve 210 and the air outlet volume of the air outlet valve 220, the purpose of fast air intake, slow air intake, smooth air intake or separate exhaust can be achieved according to actual needs, which is more flexible in use.

[0033] In addition, the number of valve groups 200 can be set in multiple groups according to actual needs. In the present embodiment, the number of valve groups 200 is preferably two groups, and the two valve groups 200 can perform individual pressure regulation to achieve the purpose of staggered output. That is to say, the two valve groups 200 can output different air pressures respectively through pressure regulation, so that the air pressure output by one valve group 200 is adapted to an oxygen concentrator with a pressure corresponding to a certain requirement, and the air pressure output by the other valve group 200 is adapted to another oxygen concentrator with a pressure corresponding to a certain requirement, thereby improving the adaptability of the entire oxygen concentrator.

[0034] Similarly, when there are multiple valve groups 200, each valve group 200 can also perform independent pressure regulation to meet different requirements of the oxygen generator.

[0035] Preferably, the air intake valve 210 includes an air intake valve inlet 211, an air intake valve cavity (not shown in the figure) and an air intake valve outlet 212. The air intake valve inlet 211 is connected to the air intake valve outlet 212 through the air intake valve cavity. The gas enters the air intake valve cavity from the air intake valve inlet 211 and then flows out from the air intake valve outlet 212.

[0036] Preferably, the exhaust valve 220 includes an exhaust valve air inlet 221, an exhaust valve cavity and an exhaust valve air outlet 222. The exhaust valve air inlet 221 is connected to the exhaust valve air outlet 222 through the exhaust valve cavity. The gas enters the exhaust valve cavity from the exhaust valve air inlet 221 and then flows out from the exhaust valve air outlet 222.

[0037] Preferably, the busbar 100 is also provided with a busbar air inlet 101, a busbar air outlet 102 and a busbar exhaust port 103; the two ends of the air inlet channel 110 are respectively connected to the busbar air inlet 101 and the air inlet valve inlet 211; the two ends of the air outlet channel 120 are respectively connected to the connecting channel 140 and the busbar air outlet 102; the two ends of the exhaust channel 130 are respectively connected to the exhaust valve outlet 222 and the busbar exhaust port 103.

[0038] Specifically, when the oxygen generator is working, the air inlet valve 210 is opened, and the external compressor inputs the compressed gas from the manifold inlet port 101, and the compressed gas passes through the air inlet channel 110, the air inlet port 211 of the air inlet valve, the air outlet port 212 of the air inlet valve, the connecting channel 140, the air outlet channel 120, and the manifold outlet port 102 in sequence, and then enters the molecular sieve of the oxygen generator to produce oxygen. When the air pressure entering the molecular sieve reaches the pressure requirement of the oxygen generator, the exhaust valve 220 is opened, and the air from the air inlet port 212 of the air inlet valve flows out. The compressed gas entering the connecting channel 140, part of the gas directly enters the molecular sieve through the gas outlet channel 120 and the manifold gas outlet 102, while the other part of the gas is discharged outward from the connecting channel 140 through the exhaust valve gas inlet 221, the exhaust valve gas outlet 222, the exhaust channel 130, and the manifold gas outlet 103 in sequence, thereby keeping the pressure of the gas entering the molecular sieve stable and meeting the pressure requirement of the oxygen generator, thereby ensuring that the oxygen generator has a good oxygen production effect and obtains high-purity oxygen.

[0039] Preferably, when there are multiple valve groups 200, the air inlet 211 of the air inlet valve of each valve group 200 is individually connected to the air inlet passage 110, and the air outlet 222 of the air outlet valve of each valve group 200 is individually connected to the air outlet passage 130. That is to say, when air is inhaled, the external gas enters the air inlet passage 110 from the manifold air inlet 101 and is divided into several parts and enters the air inlet 211 of each valve group 200 respectively. At this time, if it is necessary to accurately adjust the pressure of each valve group 200, it is only necessary to control each valve group 20 0, so that the gas pressure output to the molecular sieve meets the required pressure value. During exhaust, the gas flowing out from the exhaust valve outlet 222 of each valve group 200 converges into the exhaust channel 130 and is discharged outwardly from the exhaust port 103 of the manifold. Therefore, after each oxygen production work is completed, it is only necessary to close the air inlet valve 210 of each valve group 200 and open the exhaust valve 220 to perform exhaust work, thereby ensuring that the gas in the entire oxygen production valve is completely discharged outwardly, so that the purpose of zero air pressure start-up can still be achieved when it is used next time.

[0040] Preferably, a sealing steel ball 150 is further included, which is placed in the end of the connecting channel 140 close to the outside world. The sealing steel ball 150 blocks the end of the connecting channel 140 that is connected to the outside world, ensuring that the oxygen valve is well sealed and there is no air leakage, thereby ensuring the stability of the pressure output.

[0041] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical schemes composed of any combination of the above technical features. The above is a specific implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, four, etc., unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A direct-acting oxygen valve, It is characterized in that include: A manifold having an air inlet channel, an air outlet channel, an exhaust channel and a connecting channel, wherein the air inlet channel is used to connect to an external compressor, and the air outlet channel is used to connect to an external molecular sieve; A valve group, with at least one valve group, comprising an intake valve and an exhaust valve, wherein the intake valve and the exhaust valve are both connected to the manifold, the intake channel, the intake valve, the connecting channel, the exhaust valve and the exhaust channel are connected in sequence, and the outlet channel is connected to the connecting channel.

2. A direct-acting oxygen-generating valve according to claim 1, It is characterized in that The air intake valve comprises an air intake port, an air intake valve cavity and an air intake valve outlet. The air intake port of the air intake valve is communicated with the air intake valve outlet through the air intake valve cavity.

3. A direct-acting oxygen-generating valve according to claim 2, It is characterized in that The exhaust valve comprises an exhaust valve air inlet, an exhaust valve cavity and an exhaust valve air outlet, and the exhaust valve air inlet is communicated with the exhaust valve air outlet through the exhaust valve cavity.

4. A direct-acting oxygen-generating valve according to claim 3, It is characterized in that The manifold is also provided with a manifold air inlet, and both ends of the air inlet passage are respectively connected with the manifold air inlet and the air inlet of the air inlet valve.

5. A direct-acting oxygen-generating valve according to claim 3, It is characterized in that The baffle plate is also provided with a baffle plate air outlet, and both ends of the air outlet channel are respectively communicated with the connecting channel and the baffle plate air outlet.

6. A direct-acting oxygen-generating valve according to claim 3, It is characterized in that The manifold is also provided with a manifold exhaust port, and two ends of the exhaust passage are respectively communicated with the exhaust valve outlet and the manifold exhaust port.

7. A direct-acting oxygen-generating valve according to claim 1, It is characterized in that When the number of the valve groups is plural, the air inlet of each of the air inlet valves is communicated with the air inlet passage, and the air outlet of each of the air exhaust valves is communicated with the exhaust passage.

8. A direct-acting oxygen-generating valve according to claim 1, It is characterized in that Also included is a sealing steel ball, which is placed in the connecting channel.

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