Efficient molecular sieve adsorption type nitrogen making machine

Abstract

The utility model relates to the field of nitrogen making machines, in particular to an efficient molecular sieve adsorption type nitrogen making machine. The device comprises a reaction cylinder, and an inner cylinder is fixedly connected to the interior of the reaction cylinder. The conical filter plate in the treatment mechanism is in a big-end-down shape, impurities in gas can be effectively filtered out, the unique shape of the conical filter plate can guide the impurities to slide to the flow guide groove along the inclined face, then the impurities are collected in a centralized mode through the collecting cavity, the impurities are prevented from entering the inner cylinder to affect the performance of the molecular sieve, and the purity of gas treatment is guaranteed; the nitrogen generation efficiency and quality are improved; moreover, the driving motor drives the conical filter plate to rotate, so that the gas treatment efficiency and quality of the nitrogen making machine can be remarkably improved, the contact frequency of the surface of the conical filter plate and impurities in the gas is greatly increased in the rotating process, and the impurity intercepting effect is remarkably enhanced; and meanwhile, the impurities are promoted to move towards the edge of the filter plate and slide to the diversion trench along the inclined surface due to the centrifugal force.

Description

A high-efficiency molecular sieve adsorption nitrogen generator Technical Field

[0001] This utility model relates to the field of nitrogen generators, specifically to a high-efficiency molecular sieve adsorption nitrogen generator. Background Technology

[0002] The high-efficiency molecular sieve adsorption nitrogen generator is a device that utilizes the selective adsorption characteristics of molecular sieves for different gases in a gas to separate nitrogen from impurities such as oxygen in the gas through physical adsorption, thereby producing high-purity nitrogen.

[0003] There are many existing technologies for high-efficiency molecular sieve adsorption nitrogen generators, such as:

[0004] Chinese patent application CN218740860U discloses a pressure swing adsorption (PSA) carbon molecular sieve nitrogen generator, which includes a nitrogen generating chamber and a filter chamber disposed on one side of the nitrogen generating chamber. The filter chamber has mounting grooves on both the front and back sides. A filter screen is slidably connected to the inner surface of the mounting groove. A sealing plate adapted to the mounting groove is fixedly connected to one side of the filter screen. A motor is fixedly connected to the top of the filter chamber. One end of the motor's output shaft passes through the filter chamber and is fixedly connected to a rotating rod. A cleaning strip is sleeved and fixedly connected to the outer surface of the rotating rod, and the bottom of the cleaning strip is in close contact with the top of the filter screen. This invention, through the setting of the filter screen, filters impurities, prevents impurities from entering the nitrogen generating chamber, and increases the service life of the adsorption material inside the nitrogen generating chamber.

[0005] However, when the above-mentioned device is in use, the gas is unevenly distributed when it enters the inner cylinder and comes into contact with the molecular sieve. Due to the lack of an effective gas dispersion device, the gas cannot fully contact the molecular sieve, so the adsorption capacity of the molecular sieve cannot be fully utilized, and the nitrogen production effect is greatly reduced, making it difficult to meet the industrial production demand for high-purity and high-yield nitrogen. In view of this, we propose a high-efficiency molecular sieve adsorption nitrogen generator. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a high-efficiency molecular sieve adsorption nitrogen generator, which solves the problem that the gas is not easily and evenly sprayed onto the molecular sieve after treatment.

[0007] To achieve the above objectives, this utility model provides a high-efficiency molecular sieve adsorption nitrogen generator, comprising a reaction cylinder, an inner cylinder fixedly connected inside the reaction cylinder, a processing mechanism at the top of the inner cylinder, and a sealing cap installed at the top of the reaction cylinder, wherein:

[0008] The processing mechanism includes a rotating rod rotatably connected to the sealing cover. A conical filter plate is fixedly connected to the bottom of the rotating rod. A ventilation element for uniform airflow is provided below the conical filter plate. The conical filter plate is shaped with a smaller top and a larger bottom to guide and filter impurities in the gas.

[0009] The beneficial effects of this utility model are:

[0010] 1. In this utility model, the conical filter plate in the processing mechanism is small at the top and large at the bottom, which can effectively filter impurities in the gas. Its unique shape can guide impurities to slide down the inclined surface to the guide groove, and then be collected in a collection cavity. This avoids impurities from entering the inner cylinder and affecting the performance of the molecular sieve, ensuring the purity of the gas processing and improving the efficiency and quality of nitrogen production.

[0011] Furthermore, by driving the conical filter plate to rotate via the drive motor, the gas processing efficiency and quality of the nitrogen generator can be significantly improved. During the rotation, the contact frequency between the surface of the conical filter plate and impurities in the gas increases significantly, and the impurity interception effect is significantly enhanced. At the same time, the generation of centrifugal force causes impurities to move towards the edge of the filter plate and slide down the inclined surface to the guide groove, effectively preventing impurities from accumulating and clogging on the filter plate, ensuring smooth gas passage. In addition, the rotating conical filter plate can also stir and disperse the air entering the nitrogen generator, allowing the air to enter the inner cylinder more evenly through the ventilation components, creating favorable conditions for the subsequent efficient adsorption of molecular sieves.

[0012] As a further improvement to this technical solution, an output pipe is fixedly connected to the bottom of the reaction cylinder, and the output pipe is connected to the inner cylinder. A control valve for opening and closing the output pipe is fixedly installed on the output pipe. A guide groove is opened between the reaction cylinder and the inner cylinder to guide the impurities sliding down the conical filter plate. A collection chamber is fixedly installed on the outer ring of the bottom of the reaction cylinder. A fixed cover is snapped onto the bottom of the collection chamber. A support mesh plate is fixedly connected to the bottom of the inner cylinder to support the molecular sieve filled inside the inner cylinder. Support legs for supporting the reaction cylinder are fixedly connected to the outer wall of the bottom of the reaction cylinder.

[0013] The beneficial effects of adopting the above-mentioned further solution are that the guide channel can guide the impurities sliding down from the conical filter plate to the collection chamber, thereby achieving the separation of impurities from reaction products. The collection chamber is used to collect impurities in a concentrated manner, which is convenient for regular cleaning and prevents impurities from accumulating in the reaction cylinder and affecting the reaction effect or clogging the pipeline. The fixed cover is snapped into the bottom of the collection chamber, which makes it convenient to open the collection chamber when cleaning impurities, and can ensure its sealing after cleaning to prevent leakage.

[0014] As a further improvement to this technical solution, a diversion gas injection pipe is connected through the top of the sealing cover, and a connecting pipe for connecting to an external gas supply pipe is connected through one end of the diversion gas injection pipe. A drive motor is fixedly installed in the middle of the top of the sealing cover, and the output end of the drive motor is splinedly connected to the bottom end of the rotating rod. The bottom of the conical filter plate is circular and has the same diameter as the inner cylinder, so that impurities filtered in the gas can flow into the interior of the guide groove through the conical filter plate. The venting component includes a filter cotton layer that snaps into the inner cylinder, and a gas flow plate is fixedly connected to the bottom of the filter cotton layer for guiding the gas to be evenly sprayed onto the molecular sieve.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the filter cotton layer can further filter out tiny impurities in the gas, improve the purity of the gas, protect the molecular sieve from impurity contamination, and the gas flow plate can evenly spray the gas onto the molecular sieve, so that the gas and the molecular sieve can fully contact each other, improve the utilization rate of the molecular sieve, enhance the reaction effect, and ensure the efficient progress of the reaction. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is an overall sectional view of this utility model;

[0018] Figure 3 is a schematic diagram of the overall cutting of this utility model;

[0019] Figure 4 is a schematic diagram of the processing mechanism of this utility model.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 100. Reaction cylinder; 101. Inner cylinder; 102. Flow guide channel; 103. Collection chamber; 104. Support mesh plate;

[0022] 200. Processing mechanism; 201. Rotating rod; 202. Conical filter plate; 203. Ventilation component; 2031. Filter cotton layer; 2032. Gas flow plate;

[0023] 300, sealing cap; 400, output pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The present invention provides the following preferred embodiments.

[0026] Please refer to Figures 1-4. This embodiment provides a high-efficiency molecular sieve adsorption nitrogen generator, including a reaction cylinder 100, an inner cylinder 101 fixedly connected inside the reaction cylinder 100, a processing mechanism 200 provided on the top of the inner cylinder 101, and a sealing cap 300 installed on the top of the reaction cylinder 100, wherein:

[0027] The processing mechanism 200 includes a rotating rod 201 rotatably connected to the sealing cover 300. A conical filter plate 202 is fixedly connected to the bottom of the rotating rod 201. A ventilation component 203 for uniform ventilation is provided below the conical filter plate 202. The conical filter plate 202 is shaped with a smaller top and a larger bottom, and is used to guide and filter impurities in the gas.

[0028] The conical filter plate 202 in the processing unit 200 is shaped like a smaller top and a larger bottom, which can effectively filter impurities in the gas. Its unique shape can guide impurities to slide down the inclined surface to the guide groove 102, and then be collected in the collection chamber 103. This prevents impurities from entering the inner cylinder 101 and affecting the performance of the molecular sieve, ensuring the purity of the gas treatment and improving the nitrogen production efficiency and quality. The ventilation component 203 consists of a filter cotton layer 2031 and a gas flow plate 2032. The filter cotton layer 2031 can further filter the gas, and the gas flow plate 2032 can evenly disperse the gas, so that the gas can fully contact the molecular sieve, ensuring that the adsorption process of the molecular sieve on the gas is more complete and efficient, and improving the nitrogen production effect of the nitrogen generator.

[0029] The improvement in this embodiment is as follows:

[0030] An output pipe 400 is fixedly connected to the bottom of the reaction cylinder 100, and the output pipe 400 is connected to the inner cylinder 101. A control valve for opening and closing the output pipe 400 is fixedly installed on the output pipe 400. A guide groove 102 is opened between the reaction cylinder 100 and the inner cylinder 101 to guide the impurities that slide off the conical filter plate 202. A collection chamber 103 is fixedly installed on the outer ring of the bottom of the reaction cylinder 100. A fixed cover is snapped into the bottom of the collection chamber 103. A support mesh plate 104 is fixedly connected to the bottom of the inner cylinder 101 to support the molecular sieve filled inside the inner cylinder 101. A support leg for supporting the reaction cylinder 100 is fixedly connected to the outer wall of the bottom of the reaction cylinder 100.

[0031] A guide groove 102 is provided between the reaction cylinder 100 and the inner cylinder 101. Impurities sliding off the conical filter plate 202 are guided to the collection chamber 103 along the guide groove 102 under the action of gravity. This design utilizes the principles of gravity and flow guidance to achieve automatic collection of impurities, thereby separating impurities from the reaction area and preventing impurities from accumulating in the reaction cylinder 100 and affecting the reaction effect.

[0032] A diversion gas injection pipe is connected through the top of the sealing cover 300. One end of the diversion gas injection pipe is connected through a connecting pipe for connecting to an external gas supply pipe. A drive motor is fixedly installed in the middle of the top of the sealing cover 300. The output end of the drive motor is splinedly connected to the bottom end of the rotating rod 201. The bottom of the conical filter plate 202 is circular and has the same diameter as the inner cylinder 101, so that the impurities filtered in the gas can flow into the interior of the guide groove 102 through the conical filter plate 202. The ventilation component 203 includes a filter cotton layer 2031 that is snapped into the inner cylinder 101. A gas flow plate 2032 is fixedly connected to the bottom of the filter cotton layer 2031 for guiding the gas to be evenly distributed to the molecular sieve.

[0033] The bottom of the conical filter plate 202 is circular and has the same diameter as the inner cylinder 101. When gas containing impurities passes through the conical filter plate 202, using gravity and the filtration principle, the impurities are trapped on the conical filter plate 202 under the action of gravity and slide down along the conical surface to the guide groove 102, and then flow into the collection chamber 103. This achieves gas-solid separation, effectively filters impurities in the gas, and prevents impurities from entering the inner cylinder 101 and affecting the performance and reaction effect of the molecular sieve.

[0034] In practical use, the high-efficiency molecular sieve adsorption nitrogen generator of this utility model connects the connecting pipe on the sealing cover 300 to the external gas supply pipe to ensure that the gas can be smoothly input into the nitrogen generator. Check that the control valve is in the closed state to ensure that the equipment is safe and stable in the initial state. External gas enters the nitrogen generator through the connecting pipe and the diversion gas injection pipe, and enters the reaction cylinder 100 through the sealing cover 300. Before the gas enters the inner cylinder 101, the conical filter plate 202 performs preliminary filtration on the gas, intercepting impurities and guiding them to the guide groove 102.

[0035] The drive motor on the sealing cover 300 is started. The drive motor drives the rotating rod 201 to rotate through the spline connection, which in turn causes the conical filter plate 202 to rotate, enhancing the filtration effect. At the same time, the gas continues to flow downward and undergoes secondary filtration through the filter cotton layer 2031 of the ventilation component 203 to remove tiny impurities. The gas after secondary filtration is evenly dispersed through the gas flow plate 2032 and enters the inner cylinder 101 to fully contact the molecular sieve filled therein. The molecular sieve adsorbs oxygen and other components in the gas and separates nitrogen.

[0036] The generated nitrogen gas is connected to the inner cylinder 101 and the output pipe 400, and is discharged through the output pipe 400. The operator can adjust the output flow rate and start / stop of the nitrogen gas by controlling the valve according to actual needs, so as to provide the required nitrogen gas for subsequent production processes.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency molecular sieve adsorption nitrogen generator, comprising a reaction chamber (100), characterized in that: The reaction cylinder (100) is fixedly connected to an inner cylinder (101). A processing mechanism (200) is provided at the top of the inner cylinder (101). A sealing cover (300) is installed at the top of the reaction cylinder (100). The processing mechanism (200) includes a rotating rod (201) rotatably connected to the sealing cover (300). A conical filter plate (202) is fixedly connected to the bottom of the rotating rod (201). A ventilation component (203) for uniform ventilation is provided below the conical filter plate (202). The conical filter plate (202) is shaped with a smaller top and a larger bottom, and is used to guide and filter impurities in the gas.

2. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 1, characterized in that: The bottom of the reaction cylinder (100) is fixedly connected to an output pipe (400), and the output pipe (400) is connected to the inner cylinder (101). A control valve for opening and closing the output pipe (400) is fixedly installed on the output pipe (400).

3. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 1, characterized in that: A flow guide groove (102) is provided between the reaction cylinder (100) and the inner cylinder (101) to guide the impurities that slide off the conical filter plate (202). A collection chamber (103) is fixedly installed on the outer ring of the bottom of the reaction cylinder (100), and a fixed cover is snapped onto the bottom of the collection chamber (103).

4. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 3, characterized in that: A support mesh plate (104) is fixedly connected to the bottom of the inner cylinder (101) to support the molecular sieve filled inside the inner cylinder (101), and a support leg for supporting the reaction cylinder (100) is fixedly connected to the outer wall of the bottom of the reaction cylinder (100).

5. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 1, characterized in that: The top of the sealing cap (300) is connected to a shunt gas injection pipe, one end of which is connected to a connecting pipe for connecting to an external gas supply pipe, and a drive motor is fixedly installed in the middle of the top of the sealing cap (300).

6. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 5, characterized in that: The output end of the drive motor is splined to the bottom end of the rotating rod (201). The bottom of the conical filter plate (202) is circular and has the same diameter as the inner cylinder (101), so that impurities filtered in the gas can flow into the interior of the guide groove (102) through the conical filter plate (202).

7. The high-efficiency molecular sieve adsorption nitrogen generator according to claim 6, characterized in that: The ventilation component (203) includes a filter cotton layer (2031) that snaps into the inner cylinder (101). A gas flow plate (2032) is fixedly connected to the bottom of the filter cotton layer (2031) to guide the gas to be evenly distributed to the molecular sieve.

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