CN216457904U - Compressing device for molecular sieve of nitrogen making machine for coal mine - Google Patents
Compressing device for molecular sieve of nitrogen making machine for coal mine Download PDFInfo
- Publication number
- CN216457904U CN216457904U CN202123222859.1U CN202123222859U CN216457904U CN 216457904 U CN216457904 U CN 216457904U CN 202123222859 U CN202123222859 U CN 202123222859U CN 216457904 U CN216457904 U CN 216457904U
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- China
- Prior art keywords
- molecular sieve
- adsorption tower
- piston
- coal mine
- limit switch
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 55
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 25
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 66
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 7
- 238000005056 compaction Methods 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000010298 pulverizing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model provides a closing device of nitrogen generator molecular sieve for coal mine belongs to pressure swing adsorption gas separation technical field to in solving nitrogen generator working process, adsorption tower top pressure is lower and bottom pressure is higher, causes the upper and lower atress inequality, very easily leads to carbon molecular sieve pulverization, and pour into the coal mine after collecting space area down, have the collecting space area to cause the dangerous problem of conflagration, include: the adsorption tower comprises an adsorption tower flange cover, wherein a compaction cylinder is arranged on the adsorption tower flange cover; a piston is arranged in the pressing cylinder in a sliding manner; and six reinforced pressing ejector rods are arranged at the bottom of the piston. The utility model compresses the piston and the upper sieve plate through the compressing cylinder, thereby preventing the violent movement caused by the displacement of the molecular sieve and ensuring the yield and purity of the produced nitrogen; the position of the piston is controlled by utilizing the limit switch, and the pressure value in the tower is detected and protected in real time, so that the maintenance personnel is prompted to add and supplement the molecular sieve in the tower in time, and the normal operation of the system is ensured.
Description
Technical Field
The utility model belongs to the technical field of pressure swing adsorption gas separation, more specifically say, in particular to closing device of nitrogen generator molecular sieve for coal mine.
Background
The pressure swing adsorption nitrogen making machine takes air as a raw material, takes a high-quality carbon molecular sieve as an adsorbent, and adopts the pressure swing adsorption principle to selectively adsorb the air so as to achieve the purpose of nitrogen-oxygen separation. It has the advantages of wide applicable gas source, relatively simple process, high product purity, low production cost, etc.
In the working process of the existing nitrogen making machine, high-pressure gas enters from the bottom of an adsorption tower, meanwhile, the pressure at the top of the adsorption tower is lower, the pressure at the bottom of the adsorption tower is higher, the stress on the upper portion and the lower portion is uneven, the molecular sieve moves relatively, the generated friction force easily causes pulverization of the carbon molecular sieve, the efficiency of the molecular sieve after pulverization is reduced until the molecular sieve loses the capability of adsorbing oxygen, the purity and the flow of the produced nitrogen are finally influenced, the flame retardant property of the nitrogen is reduced, and after the nitrogen is injected into a goaf under a coal mine, the danger of fire caused by the goaf exists.
In view of the above, research and improvement are made on the existing structure and defects, and a compressing device for a molecular sieve of a nitrogen making machine for coal mines is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a closing device of nitrogen machine molecular sieve for coal mine to in solving nitrogen machine working process, adsorption tower top pressure is lower and bottom pressure is higher, causes the upper and lower atress inequality, very easily leads to the carbon molecular sieve pulverization, and pour into behind the colliery collecting space area down, have the collecting space area to cause the dangerous problem of conflagration.
The utility model relates to a closing device's of nitrogen generator molecular sieve for coal mine purpose and efficiency are reached by following specific technological means:
a closing device of nitrogen generator molecular sieve for coal mine includes: the adsorption tower comprises an adsorption tower flange cover, wherein a compression cylinder is arranged on the adsorption tower flange cover; the compaction cylinder is of a cylindrical cavity structure, a piston is arranged in the compaction cylinder in a sliding mode, and a communicating pipe is arranged at the top of the compaction cylinder; six reinforced pressing ejector rods are arranged at the bottom of the piston and distributed in an annular array mode; a piston rod is arranged at the top of the piston and penetrates through the top wall of the pressing cylinder in a sliding manner; the piston rod is provided with a limit switch; the limit switch comprises an early warning limit switch and a shutdown limit switch; the adsorption tower flange cover is provided with a one-way stop valve; the adsorption tower flange cover is fixedly arranged at the top end of the adsorption tower body; the adsorption tower is internally provided with a molecular sieve.
Furthermore, a piston lower cavity threaded connector is arranged at the bottom end of the compression air cylinder and connected with the adsorption tower flange cover in a threaded mode, and the compression air cylinder is used as a compression structure of the adsorption tower body and is a main component for ensuring stable use of the molecular sieve and safe operation of the adsorption tower.
Furthermore, the six reinforced pressing ejector rods penetrate through the adsorption tower flange cover, so that the normal work of the pressing device is ensured.
Further, strengthen compressing tightly the ejector pin top and be connected with the piston, and strengthen compressing tightly the molecular sieve that the ejector pin bottom was connected with the adsorption tower body, the piston is driven by compressing tightly the cylinder to can make the piston rod stretch out and draw back, drive simultaneously and strengthen compressing tightly ejector pin and molecular sieve, carry out the developments to compressing tightly to this internal molecular sieve of adsorption tower.
Furthermore, the one-way stop valve is communicated with the adsorption tower body, a pressure gauge is arranged at the top of the one-way stop valve, and the pressure gauge is connected with the one-way stop valve so as to detect the real-time pressure value inside the adsorption tower body.
Further, the pressure gauge is connected with the communicating pipe, the pressure gauge is communicated with the compressing cylinder through the communicating pipe, and the one-way stop valve is connected with the pressure gauge and the communicating pipe, so that gas in the adsorption tower body enters the upper part of the piston of the compressing cylinder.
Furthermore, the early warning limit switch and the shutdown limit switch are respectively arranged on the left side and the right side of the outer peripheral surface of the piston rod;
the early warning limit switch is linked with the piston rod, and when the piston rod reaches an early warning position, the system starts early warning;
the stop limit switch is linked with the piston rod, and when the piston rod reaches a stop position, the system automatically stops.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. utilize this internal compressed air of adsorption tower, carry out the developments and compress tightly the molecular sieve, when the molecular sieve produced the displacement, compress tightly the cylinder and then carry out corresponding compensation displacement to guarantee that the molecular sieve is in the state of compressing tightly all the time in the adsorption tower body, compress tightly piston and last sieve through compressing tightly the cylinder, thereby prevent the violent motion because of the molecular sieve displacement appears, ensure output and the purity of output nitrogen gas.
2. The position of the piston is controlled by utilizing the limit switch, so that the working stroke of the molecular sieve is controlled, the pressure value in the tower can be detected and protected in real time, and the maintenance personnel is prompted to add and supplement the molecular sieve in the tower in time, so that the normal operation of the system is ensured.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is the view structure diagram of the section view angle of the partial adsorption tower flange cover and the compression cylinder of the utility model.
Fig. 3 is a schematic view of the connection structure of the reinforced pressing ejector rod, the piston and the piston rod of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an adsorption tower flange cover; 2. a pressing cylinder; 3. the pressing ejector rod is strengthened; 4. a piston; 5. an early warning limit switch; 6. a piston rod; 7. a stop limit switch; 8. a pressure gauge; 9. a one-way stop valve; 10. a communicating pipe; 11. an adsorption tower body; 12. a molecular sieve; 13. the piston lower cavity is provided with a threaded interface.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 3:
the utility model provides a closing device of nitrogen generator molecular sieve for coal mine, include: the adsorption tower comprises an adsorption tower flange cover 1, wherein a compaction cylinder 2 is arranged on the adsorption tower flange cover 1; the bottom end of the compression cylinder 2 is provided with a piston lower cavity threaded interface 13, the piston lower cavity threaded interface 13 is connected with the adsorption tower flange cover 1 in a threaded manner, and the compression cylinder 2 is used as a compression structure of the adsorption tower body 11 and is a main part for ensuring the stable use of the molecular sieve 12 and the safe operation of the adsorption tower; the pressing cylinder 2 is of a cylindrical cavity structure, a piston 4 is arranged in the pressing cylinder 2 in a sliding mode, and a communicating pipe 10 is arranged at the top of the pressing cylinder 2; six reinforced pressing ejector rods 3 are arranged at the bottom of the piston 4, and the six reinforced pressing ejector rods 3 are distributed in an annular array mode; the top of the piston 4 is provided with a piston rod 6, and the piston rod 6 penetrates through the top wall of the pressing cylinder 2 in a sliding manner; a limit switch is arranged on the piston rod 6; the limit switch comprises an early warning limit switch 5 and a stop limit switch 7; the flange cover 1 of the adsorption tower is provided with a one-way stop valve 9; the adsorption tower flange cover 1 is fixedly arranged at the top end of the adsorption tower body 11; the adsorption tower body 11 is internally provided with a molecular sieve 12.
Six reinforced pressing ejector rods 3 penetrate through the adsorption tower flange cover 1, so that normal work of the pressing device is guaranteed; the top end of the reinforced pressing ejector rod 3 is connected with the piston 4, the bottom end of the reinforced pressing ejector rod 3 is connected with the molecular sieve 12 of the adsorption tower body 11, the piston 4 is driven by the pressing cylinder 2, the piston rod 6 can stretch and retract, the reinforced pressing ejector rod 3 and the molecular sieve 12 are driven at the same time, and the molecular sieve 12 in the adsorption tower body 11 is dynamically pressed; the one-way stop valve 9 is communicated with the adsorption tower body 11, a pressure gauge 8 is arranged at the top of the one-way stop valve 9, and the pressure gauge 8 is connected with the one-way stop valve 9 so as to detect a real-time pressure value inside the adsorption tower body 11; the pressure gauge 8 is connected with the communicating pipe 10, the pressure gauge 8 is communicated with the compressing cylinder 2 through the communicating pipe 10, the one-way stop valve 9 is connected with the pressure gauge 8 and the communicating pipe 10, so that gas in the adsorption tower body 11 enters the upper part of the piston 4 of the compressing cylinder 2, the molecular sieve 12 is dynamically compressed by utilizing compressed air in the adsorption tower body 11, when the molecular sieve 12 generates displacement, the compressing cylinder 2 carries out corresponding compensation displacement, and the molecular sieve 12 in the adsorption tower body 11 is always in a compression state.
The early warning limit switch 5 and the shutdown limit switch 7 are respectively arranged on the left side and the right side of the outer peripheral surface of the piston rod 6; the early warning limit switch 5 is linked with the piston rod 6, and when the piston rod 6 reaches an early warning position, the system starts early warning; the stop limit switch 7 is linked with the piston rod 6, when the piston rod 6 reaches a stop position, the system is automatically stopped, and the position of the piston 4 is controlled by using the limit switch, so that the working stroke of the molecular sieve 12 is controlled.
The specific use mode and function of the embodiment are as follows:
the utility model discloses in, equipment during operation produces the displacement when molecular sieve 12, and gas then gets into the upper portion of piston 4 through one-way stop valve 9 in the adsorption tower body 11, makes piston 4 correspondingly carry out the displacement downwards to the drive is strengthened and is compressed tightly ejector pin 3 and move downwards, thereby compresses tightly the last sieve of molecular sieve 12 in the adsorption tower body 11. Due to the action of the one-way stop valve 9, the upper pressure of the piston 4 is always higher than or equal to the pressure in the adsorption tower body 11, so that the dynamic stable compression of the compression cylinder 2 on the molecular sieve 12 in the adsorption tower body 11 is ensured;
when the molecular sieve 12 sinks when generating displacement and the piston 4 drives the piston rod 6 to reach the position of the early warning limit switch 5, the system starts to give an alarm to prompt overhaul and maintenance personnel to add the molecular sieve 12 under possible conditions; if the system needs to be used continuously, the compaction cylinder 2 drives the piston rod 6 to move and continuously reach the stop limit switch 7, namely the limit stop position, the system is automatically stopped, the molecular sieve 12 needs to be added at the moment, and the system can normally run.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a closing device of nitrogen generator molecular sieve for coal mine which characterized in that: compressing apparatus of nitrogen generator molecular sieve for coal mine includes: the adsorption tower comprises an adsorption tower flange cover (1), wherein a compression cylinder (2) is arranged on the adsorption tower flange cover (1); the pressing cylinder (2) is of a cylindrical cavity structure, a piston (4) is arranged in the pressing cylinder (2) in a sliding mode, and a communicating pipe (10) is arranged at the top of the pressing cylinder (2); six reinforced pressing ejector rods (3) are arranged at the bottom of the piston (4), and the six reinforced pressing ejector rods (3) are distributed in an annular array mode; a piston rod (6) is arranged at the top of the piston (4), and the piston rod (6) penetrates through the top wall of the pressing cylinder (2) in a sliding manner; a limit switch is arranged on the piston rod (6); the limit switch comprises an early warning limit switch (5) and a stop limit switch (7); a one-way stop valve (9) is arranged on the adsorption tower flange cover (1); the adsorption tower flange cover (1) is fixedly arranged at the top end of the adsorption tower body (11); the adsorption tower body (11) is internally provided with a molecular sieve (12).
2. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 1, characterized in that: the bottom end of the compressing cylinder (2) is provided with a piston lower cavity threaded connector (13), and the piston lower cavity threaded connector (13) is connected with the adsorption tower flange cover (1) in a threaded mode.
3. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 1, characterized in that: six reinforced pressing ejector rods (3) penetrate through the adsorption tower flange cover (1).
4. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 1, characterized in that: the top end of the reinforced pressing ejector rod (3) is connected with the piston (4), and the bottom end of the reinforced pressing ejector rod (3) is connected with the molecular sieve (12) of the adsorption tower body (11).
5. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 1, characterized in that: the one-way stop valve (9) is communicated with the adsorption tower body (11), and a pressure gauge (8) is arranged at the top of the one-way stop valve (9).
6. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 5, characterized in that: the pressure gauge (8) is connected with the communicating pipe (10), and the pressure gauge (8) is communicated with the compressing cylinder (2) through the communicating pipe (10).
7. The compacting device of the molecular sieve of the nitrogen making machine for the coal mine according to claim 1, characterized in that: the early warning limit switch (5) and the shutdown limit switch (7) are respectively arranged on the left side and the right side of the outer peripheral surface of the piston rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123222859.1U CN216457904U (en) | 2021-12-21 | 2021-12-21 | Compressing device for molecular sieve of nitrogen making machine for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123222859.1U CN216457904U (en) | 2021-12-21 | 2021-12-21 | Compressing device for molecular sieve of nitrogen making machine for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216457904U true CN216457904U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123222859.1U Expired - Fee Related CN216457904U (en) | 2021-12-21 | 2021-12-21 | Compressing device for molecular sieve of nitrogen making machine for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216457904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358008A (en) * | 2023-12-05 | 2024-01-09 | 杭州鼎岳空分设备有限公司 | Compacting device for solid particle filler |
-
2021
- 2021-12-21 CN CN202123222859.1U patent/CN216457904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358008A (en) * | 2023-12-05 | 2024-01-09 | 杭州鼎岳空分设备有限公司 | Compacting device for solid particle filler |
| CN117358008B (en) * | 2023-12-05 | 2024-02-27 | 杭州鼎岳空分设备有限公司 | Compacting device for solid particle filler |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |