Integrated molecular sieve assembly

Abstract

The utility model relates to the technical field of oxygen generator molecular sieves, and discloses an integrated molecular sieve assembly, which comprises a molecular sieve cylinder, a molecular sieve upper cover and a molecular sieve lower cover, the molecular sieve cylinder comprises two molecular sieve cavities and an oxygen storage cavity, a pressure regulating valve communicated with the oxygen storage cavity is arranged on the molecular sieve upper cover, and the molecular sieve lower cover is provided with a pressure regulating valve communicated with the oxygen storage cavity. The molecular sieve lower cover communicates the two molecular sieve cavities with the oxygen storage cavity through communicating channels, the molecular sieve cavities communicate with each other through a communicating pipe, and an on-off valve is arranged on the communicating pipe and used for controlling opening and closing of the communicating pipe. According to the utility model, the oxygen storage cavity and the molecular sieve cavity are integrally arranged in the molecular sieve cylinder, and the communication channel is integrated on the molecular sieve lower cover to communicate the molecular sieve cavity with the oxygen storage cavity, so that a redundant pipeline structure is effectively avoided, and meanwhile, the on-off valve is arranged to ensure that the air pressure in the two molecular sieve cavities is stable and balanced; and meanwhile, the nitrogen discharge efficiency in a single molecular sieve cavity can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen generator molecular sieve technical field, concretely is a kind of integrated molecular sieve assembly. BACKGROUND

[0002] Molecular sieve is important component in medical and household oxygen generator, it is using pressure swing adsorption technology to realize the separation of oxygen and nitrogen in air, obtain high concentration oxygen, and supply patient to use.Oxygen generator in prior art is mainly including two molecular towers, two molecular towers alternate oxygen production and analysis, the oxygen separated in molecular tower directly enters the oxygen tank outside, and the nitrogen separated enters the silencer outside, so that the structure involved in oxygen generator is more, pipeline is more complex, oxygen generator volume is larger, it is not conducive to quick assembly forming, improves production cost. UTILITARY MODEL

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides an integrated molecular sieve assembly, solves the problems, such as low integration of molecular sieve assembly for oxygen generator, complex structure and pipeline, inconvenient quick assembly forming and improving production cost.

[0005] (II) technical scheme

[0006] To achieve the above object, the utility model is realized by the following technical schemes:

[0007] An integrated molecular sieve assembly, comprising molecular sieve cylinder, molecular sieve upper cover and molecular sieve lower cover, the molecular sieve cylinder includes two molecular sieve cavities and an oxygen storage cavity, the molecular sieve upper cover is arranged with pressure regulating valve communicated with the oxygen storage cavity, the molecular sieve lower cover is communicated with two molecular sieve cavities and oxygen storage cavity through communication channel, the molecular sieve cavities are communicated with each other through communication pipe, and the communication pipe is provided with on-off valve to control the opening and closing of communication pipe.

[0008] Preferably, the molecular sieve cylinder is arranged on one side of compressor shell, the middle part of molecular sieve cylinder is fixedly arranged through hoop frame, and the compressor shell is provided with air inlet assembly communicated with the molecular sieve upper cover.

[0009] Preferably, the molecular sieve upper cover is provided with straight plug connector communicated with the oxygen storage cavity, and the straight plug connector is installed with pressure relief safety valve.

[0010] Preferably, the molecular sieve lower cover is detachably installed with sealing cover plate matched with communication channel, and sealing washer is arranged between the sealing cover plate and communication channel.

[0011] Preferably, the communication passage is provided with an internal thread at both ends communicating with the molecular sieve cavity, and a fixed hole part is threadedly connected to the port at both ends of the communication passage, and a fixed diameter hole is arranged in the middle of the fixed hole part to increase the pressure and limit the flow.

[0012] Preferably, the oxygen outlet communicating with the communication passage is arranged on the lower cover of the molecular sieve, and a one-way valve is arranged on the oxygen outlet through a connecting pipe.

[0013] (III) Beneficial effects

[0014] The utility model has the following beneficial effects:

[0015] The integrated molecular sieve assembly is provided with two molecular sieve cavities and an oxygen storage cavity arranged on the molecular sieve cylinder, which can efficiently integrate the molecular sieve cylinder and the oxygen storage tank, and avoid excessive accessories affecting the overall assembly efficiency; the communication passage arranged on the lower cover of the molecular sieve communicates the molecular sieve cavity and the oxygen storage cavity, effectively reducing the traditional pipeline connection; the communication pipe and the on-off valve can be arranged, so that when one molecular sieve cavity is in the air entering separation oxygen production state and the other molecular sieve cavity discharges the separated nitrogen gas, the on-off valve can be opened, and the oxygen in the molecular sieve cavity for separation oxygen production can partially enter the lower part of the molecular sieve cavity in the nitrogen discharge state, thereby assisting the rapid discharge and emptying of nitrogen, which is beneficial to ensuring that the subsequent separation oxygen production process is always in an ideal state. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model is an installation application structure schematic view;

[0017] Figure 2 The utility model is an overall structure schematic view;

[0018] Figure 3 The utility model is an A-A cross section structure schematic view (in the figure, the one-way valve, the fixed hole part and the connecting pipe are hidden);

[0019] Figure 4 The utility model is a first view angle each component split structure schematic view;

[0020] Figure 5 The utility model is a second view angle each component split structure schematic view;

[0021] Figure 6 The utility model is a second view angle each component split structure schematic view

[0022] In the figure: 1, compressor housing; 2, air inlet assembly; 3, molecular sieve cylinder; 31, molecular sieve cavity; 32, oxygen storage cavity; 4, molecular sieve upper cover; 5, pressure regulating valve; 6, molecular sieve lower cover; 61, communication passage; 62, sealing washer; 63, closing cover plate; 64, on-off valve; 65, communication pipe; 66, oxygen inlet; 67, fixed hole part; 68, one-way valve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figure 1 The utility model provides a kind of technical solutions: a kind of integrated molecular sieve assembly, including molecular sieve cylinder 3, molecular sieve upper cover 4 and molecular sieve lower cover 6, molecular sieve cylinder 3 includes two molecular sieve cavities 31 and one oxygen storage cavity 32, pressure regulating valve 5 is arranged on molecular sieve upper cover 4 and communicated with oxygen storage cavity 32, two molecular sieve cavities 31 are communicated with oxygen storage cavity 32 respectively by communication passage 61 on molecular sieve lower cover 6, molecular sieve cavity 31 is communicated with each other by communication pipe 65, on-off valve 64 is provided on communication pipe 65, to control the opening and closing of communication pipe 65.

[0025] The utility model, by being integrated with two molecular sieve cavities 31 and oxygen storage cavity 32 on molecular sieve cylinder 3, can efficiently integrate molecular sieve cylinder 3 and oxygen storage tank, avoid excessive accessories to affect overall assembly efficiency;By the communication passage 61 integrated on the molecular sieve lower cover 6, the molecular sieve cavity 31 and the oxygen storage cavity 32 are communicated, which effectively reduces the traditional pipeline connection;By the communication pipe 65 and the on-off valve 64 arranged, when one molecular sieve cavity 31 is in the air entering separation oxygen production state, another molecular sieve cavity 31 discharges nitrogen separated therein, the on-off valve 64 can be opened, so that the oxygen in the molecular sieve cavity 31 for separation oxygen production can partially enter the lower part of the molecular sieve cavity 31 in the nitrogen discharge state, thereby playing the role of assisting the rapid discharge and emptying of nitrogen, which is beneficial to ensure that the subsequent separation oxygen production process is always in an ideal state.

[0026] Referring to Figure 1 In the embodiment, the molecular sieve cylinder 3 is arranged on one side of the compressor housing 1, and the middle part of the molecular sieve cylinder 3 is fixedly arranged by a hoop, and the compressor housing 1 is provided with an air inlet assembly 2 communicated with the molecular sieve upper cover 4. The hoop can ensure the stability of the molecular sieve assembly during daily transportation and movement.

[0027] Referring toFigure 1 As shown in the figure, in the embodiment, a straight plug connector is arranged on the upper cover 4 of the molecular sieve and communicates with the oxygen storage cavity 32, and a pressure relief safety valve is mounted on the straight plug connector. Through the pressure relief safety valve arranged, when the oxygen pressure in the oxygen storage cavity 32 exceeds the safety value, the oxygen can be discharged through pressure relief, and the safety of the entire molecular sieve assembly is improved.

[0028] In the embodiment, a detachable closing cover plate 63 matched with the communication channel 61 is detachably mounted on the lower cover 6 of the molecular sieve, and a sealing washer 62 is arranged between the closing cover plate 63 and the communication channel 61.

[0029] Referring to Figure 5 As shown in the figure, in the embodiment, the communication channel 61 is provided with an inner thread at the port communicating with the molecular sieve cavity 31 at both ends, and a fixed hole part is arranged on the port of both ends of the communication channel 61, and a fixed diameter hole is arranged through the middle part of the fixed hole part, so as to increase the pressure and limit the flow, so that the pressure in the oxygen storage cavity is rapidly increased, so as to facilitate the subsequent discharge of oxygen.

[0030] Referring to Figure 6 As shown in the figure, in the embodiment, the lower cover of the molecular sieve is respectively provided with an oxygen outlet communicating with the communication channel, and a one-way valve is arranged on the oxygen outlet through a connecting pipe. Through the one-way valve arranged on the oxygen storage cavity 32, it can be ensured that oxygen can only be sent from the molecular sieve cavity 31 into the oxygen storage cavity 32 for storage, avoiding backflow of oxygen.

[0031] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation. The statement "including a limited element" does not exclude the existence of another same element in the process, method, article or equipment including the element.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated molecular sieve assembly, comprising a molecular sieve cylinder, a molecular sieve upper cover, and a molecular sieve lower cover, characterized in that: The molecular sieve cylinder includes two molecular sieve chambers and an oxygen storage chamber. A pressure regulating valve connected to the oxygen storage chamber is arranged on the upper cover of the molecular sieve. The lower cover of the molecular sieve connects the two molecular sieve chambers to the oxygen storage chamber through a connecting channel. The molecular sieve chambers are connected to each other through a connecting pipe. An on / off valve is provided on the connecting pipe to control the opening and closing of the connecting pipe.

2. The integrated molecular sieve assembly according to claim 1, characterized in that: The molecular sieve cylinder is disposed on one side of the compressor housing, and the middle part of the molecular sieve cylinder is fixed by a hoop. An air intake assembly communicating with the upper cover of the molecular sieve is disposed on the compressor housing.

3. The integrated molecular sieve assembly according to claim 1, characterized in that: The molecular sieve cover is provided with a straight-through connector that communicates with the oxygen storage chamber, and a pressure relief safety valve is installed on the straight-through connector.

4. An integrated molecular sieve assembly according to claim 1, characterized in that: The molecular sieve bottom cover is detachably fitted with a sealing cover plate that mates with the connecting channel, and a sealing gasket is provided between the sealing cover plate and the connecting channel.

5. An integrated molecular sieve assembly according to claim 1 or 4, characterized in that: Both ends of the connecting channel are provided with internal threads at the ports that connect to the molecular sieve cavity. Both ends of the connecting channel are threadedly connected with fixed hole components. A fixed diameter hole is provided through the middle of the fixed hole component for pressurization and flow restriction.

6. An integrated molecular sieve assembly according to claim 5, characterized in that: The molecular sieve cover is provided with oxygen outlets that are connected to the communication channel, and one-way valves are arranged on the oxygen outlets through connecting pipes.

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