CN215196180U - Automatic compressing and compensating device for molecular sieve - Google Patents
Automatic compressing and compensating device for molecular sieve Download PDFInfo
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- CN215196180U CN215196180U CN202120802214.6U CN202120802214U CN215196180U CN 215196180 U CN215196180 U CN 215196180U CN 202120802214 U CN202120802214 U CN 202120802214U CN 215196180 U CN215196180 U CN 215196180U
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Abstract
The utility model relates to an automatic compensation arrangement that compresses tightly of molecular sieve, include: the adsorption tower comprises an adsorption tower body, a ventilating partition plate for dividing the adsorption tower body into an upper cavity and a lower cavity, a molecular sieve arranged in the lower cavity, a lower ventilating pipe arranged outside the adsorption tower body and having one end communicated with the lower end of the lower cavity, an upper ventilating device having one end communicated with the upper cavity and the other end extending out of the adsorption tower body, a compensation cylinder having the lower end penetrating through the upper end of the adsorption tower body and the ventilating partition plate and positioned at the upper end of the molecular sieve, a compensation molecular sieve arranged in the compensation cylinder and positioned at the upper side of the molecular sieve, a pressing plate arranged in the compensation cylinder and pressing the upper end of the compensation molecular sieve, and an automatic pressing device for pressing a compensation piston at the upper end of the pressing plate. The automatic compaction compensation device for the molecular sieve can automatically compact and compensate the molecular sieve in time through the automatic compaction device, prevent the local overload of the molecular sieve, improve the utilization rate of the molecular sieve and prolong the service life of the molecular sieve.
Description
Technical Field
The utility model belongs to the technical field of the pressure swing adsorption technique and specifically relates to an automatic compensation arrangement that compresses tightly of molecular sieve.
Background
The Pressure Swing Adsorption (PSA) is a new gas separation technology, and the principle is that the gas mixture is separated by utilizing the difference of adsorption performance of molecular sieves on different gas molecules; the carbon molecular sieve is used more during nitrogen production, the zeolite molecular sieve is used more during oxygen production, and nitrogen or oxygen is separated by the molecular sieve based on different diffusion rates of gas on the surface of the molecular sieve to obtain nitrogen or oxygen; the pressure swing adsorption method generally uses two adsorption towers with molecular sieves arranged in parallel to alternately perform pressure adsorption and decompression regeneration so as to obtain continuous nitrogen flow or oxygen flow; the structure of the molecular sieve can be known from a pressure swing adsorption molecular sieve oxygen generation device disclosed in the invention of Chinese patent application No. CN 03157042.9; in a general adsorption tower, a lower vent pipe and an upper vent pipe are directly contacted with a molecular sieve, the molecular sieve is a granular substance, the filling process cannot be absolutely compact, the molecular sieve adsorption and regeneration are alternately carried out, the pressure of the molecular sieve is continuously changed, the molecular sieve is easy to loosen, excessive friction and pulverization of molecular sieve particles are caused, a trace gap is formed, meanwhile, airflow is directly blown to the molecular sieve, the molecular sieve particles are easy to damage, the service life of the molecular sieve is shortened, and local overload of the molecular sieve is easy to cause due to the fact that the airflow is intensively blown to one position, and the utilization rate of the molecular sieve is low; therefore, the design of the automatic molecular sieve compaction compensation device can overcome the defects that the molecular sieve particles are damaged due to excessive friction pulverization caused by the alternate adsorption and regeneration of the molecular sieve, the molecular sieve particles are blown to one place due to the concentrated blowing of the air flow, the local overload of the molecular sieve is caused, the utilization rate of the molecular sieve is increased, and the service life of the molecular sieve is prolonged, so that the problem to be solved urgently is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming present molecular sieve and having because absorption and regeneration go on in turn, easily arouse the excessive friction pulverization of molecular sieve granule to form the trace space, the air current directly blows to the molecular sieve, cause the damaged life who reduces the molecular sieve of molecular sieve granule easily, and because the air current is concentrated to blow to easily cause the local overload of molecular sieve to make the less not enough of utilization ratio of molecular sieve, it can go on in turn to absorption and regeneration because of the molecular sieve to provide one kind, the trace space that the excessive friction pulverization of molecular sieve granule formed, the air current directly blows and causes the damaged timely automatic compensation that compresses tightly of molecular sieve granule easily to the molecular sieve, prevent the local overload of molecular sieve, improve molecular sieve utilization ratio and life's molecular sieve automatic compensation arrangement that compresses tightly.
The utility model discloses a concrete technical scheme is:
an automatic compaction compensation device for a molecular sieve, comprising: the adsorption tower comprises an adsorption tower body, a ventilating partition plate, a molecular sieve, a lower ventilating pipe, an upper ventilating device, a compensation cylinder, a compensation molecular sieve, a pressing plate and an automatic pressing device, wherein the ventilating partition plate divides the adsorption tower body into an upper cavity and a lower cavity; the material of the air-permeable partition board is a microporous air-permeable board.
Preferably, the automatic pressing device comprises: the cover plate is connected with the upper end of the compensation cylinder, and the cylinder is provided with a cylinder piston position detection warning device and is connected with the upper end of the cover plate; the piston rod of the cylinder penetrates through the cover plate to be connected with the upper end of the compensation piston.
Preferably, the automatic pressing device further comprises: and the check valve is arranged on the cover plate and is communicated with the rodless cavity of the cylinder.
Preferably, the cylinder piston position detection warning device includes: a magnet ring or a magnet arranged on the piston of the cylinder, and a plurality of alarms provided with cylinder inductors; the alarms are arranged along the motion direction of the cylinder piston and are respectively connected with the cylinder body of the cylinder.
Preferably, the cylinder inductor is a magnetic switch or a Hall switch; the alarm is a voice alarm or a light alarm.
Preferably, the upper ventilation device comprises: the air vent is sleeved outside the compensation cylinder, the side wall of the air vent is connected with the adsorption tower body, one end of the upper vent pipe is connected with the side wall of the air vent, and a plurality of air outlet holes are circumferentially distributed along the side wall of the air vent and are communicated with the upper cavity; the other end of the upper breather pipe is provided with a connecting flange.
Preferably, the upper ventilation device comprises: a plurality of vertical vent pipes which are arranged in the lower cavity and one end of each vertical vent pipe passes through the breathable partition plate and is communicated with the upper cavity, and a transverse vent pipe one end of which passes through the side wall of the adsorption tower body and is respectively communicated with the other end of each vertical vent pipe; the other end of the transverse air pipe is provided with a connecting flange.
Preferably, the molecular sieve and the compensation molecular sieve are both carbon molecular sieves when preparing nitrogen, and are both zeolite molecular sieves when preparing oxygen.
Preferably, the pressing plate is made of a palm cushion.
Preferably, the upper end of the adsorption tower body is provided with a plurality of hoisting lugs.
The compensation method of the automatic molecular sieve compaction compensation device comprises the following steps that (1) airflow entering a lower cavity from a lower vent pipe is adsorbed by a molecular sieve, prepared nitrogen or oxygen enters an upper cavity through a breathable partition plate and flows out and is collected from an upper vent device, and when the molecular sieve is adsorbed to be close to saturation, the molecular sieve is decompressed and regenerated; (2) the adsorption and regeneration of the molecular sieve are alternately carried out, the molecular sieve particles are excessively rubbed and pulverized to form micro gaps, airflow is directly blown to the molecular sieve to damage the molecular sieve particles, and when the airflow is intensively blown to one position to cause local overload of the molecular sieve, a cylinder piston rod of the automatic pressing device automatically presses down the compensating molecular sieve through a compensating piston and a pressing plate to perform pressing compensation on the molecular sieve in time; (3) the check valve communicated with the rodless cavity of the air cylinder can block the backflow of compressed air, so that the pressure of the pressure plate for pressing the compensation molecular sieve is kept stable; (4) the cylinder inductor of the cylinder piston position detection warning device is matched with the magnetic ring or the magnet on the cylinder piston to detect the position of the cylinder piston and send out an alarm prompt through the alarm, when the compensating piston reaches a set maximum stroke position, the corresponding set alarm sends out the alarm prompt, and the failed molecular sieve and the compensating molecular sieve need to be replaced.
Compared with the prior art, the beneficial effects of the utility model are that: the automatic molecular sieve compaction compensation device can automatically and downwards compress and compensate the molecular sieve in time through the compensation piston and the pressing plate by the air cylinder piston rod of the automatic compaction device, can alternatively adsorb and regenerate the molecular sieve, and can easily cause the damage of molecular sieve particles in time and automatically compact and compensate by directly blowing air flow and micro gaps formed by excessive friction and pulverization of the molecular sieve particles to the molecular sieve, thereby preventing the local overload of the molecular sieve, improving the utilization rate of the molecular sieve and prolonging the service life of the molecular sieve. The check valve communicated with the rodless cavity of the air cylinder can block the backflow of compressed air, so that the pressure of the pressure plate for pressing the compensation molecular sieve is kept stable. The cylinder inductor of the cylinder piston position detection warning device is matched with the magnetic ring or the magnet on the cylinder piston to detect the position of the cylinder piston and send an alarm prompt through the alarm, when the compensating piston reaches a set maximum stroke position, the corresponding set alarm sends the alarm prompt, and replacement of failed molecular sieves and compensating molecular sieves is facilitated. The material of clamp plate is the palm pad, does benefit to the difficult damaged of increase compensation molecular sieve upper strata granule and clamp plate's area of contact. The other end of the upper vent pipe is provided with a connecting flange, and the other end of the transverse vent pipe is provided with a connecting flange, so that the connection is facilitated. The hoisting lug is beneficial to hoisting.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: the device comprises an adsorption tower body 1, an upper cavity 2, a lower cavity 3, a ventilating partition plate 4, a molecular sieve 5, a compensation cylinder 6, a compensation molecular sieve 7, a pressing plate 8, a compensation piston 9, a cover plate 10, an air cylinder 11, a check valve 12, an air cylinder sensor 13, an alarm 14, a cylinder body 15 of the air cylinder, a ventilation cylinder 16, an upper ventilation pipe 17, an air outlet hole 18, a connecting flange 19, a vertical ventilation pipe 20, a transverse ventilation pipe 21 and a hoisting lug 22.
Detailed Description
The invention will be further described with reference to the drawings.
Example 1, as shown in figure 1: an automatic compaction compensation device for a molecular sieve, comprising: the adsorption tower comprises an adsorption tower body 1, a ventilating partition plate 4 for dividing the adsorption tower body 1 into an upper cavity 2 and a lower cavity 3, a molecular sieve 5 arranged in the lower cavity 3, a lower ventilating pipe (not shown) arranged outside the adsorption tower body 1 and one end of the lower ventilating pipe is communicated with the lower end of the lower cavity 3, an upper ventilating device with one end communicated with the upper cavity 2 and the other end extending out of the adsorption tower body 1, a compensation cylinder 6 with the lower end penetrating through the upper end of the adsorption tower body 1 and the ventilating partition plate 4 and positioned at the upper end of the molecular sieve 5, a compensation molecular sieve 7 arranged in the compensation cylinder 6 and positioned at the upper side of the molecular sieve 5, a pressure plate 8 arranged in the compensation cylinder 6 and used for pressing the upper end of the compensation molecular sieve 7, and an automatic pressing device used for pressing a compensation piston 9 at the upper end of the pressure plate 8; the material of the air-permeable partition plate 4 is a microporous air-permeable plate.
The automatic pressing device comprises: the cover plate 10 is in threaded connection with the upper end of the compensation cylinder 6, and the cylinder 11 is provided with a cylinder piston position detection warning device and is in threaded connection with the upper end of the cover plate 10; the piston rod of the cylinder 11 passes through the cover plate 10 and is in threaded connection with the upper end of the compensation piston 9.
The automatic pressing device further comprises: and a check valve 12 installed on the cover plate 10 and communicating with the rodless chamber of the cylinder 11.
11 piston position of cylinder detect warning device include: a magnetic ring (not shown) arranged on the cylinder piston, two alarms 14 provided with cylinder inductors 13; the alarm devices 14 are arranged along the moving direction of the piston of the cylinder and are respectively screwed with the cylinder body 15 of the cylinder.
The cylinder inductor 13 is a magnetic switch or a Hall switch; the alarm 14 is a voice alarm or a light alarm.
The upper ventilating device comprises: the air vent pipe 16 is sleeved outside the compensation cylinder 6, the side wall of the air vent pipe 16 is welded with the adsorption tower body 1, one end of the upper air vent pipe 17 is welded with the side wall of the air vent pipe 16, and four air outlet holes 18 are circumferentially distributed along the side wall of the air vent pipe 16 and are communicated with the upper cavity 2; the other end of the upper vent pipe 17 is provided with a connecting flange 19. The molecular sieve 5 and the compensation molecular sieve 7 are both carbon molecular sieves 5 when preparing nitrogen, and the molecular sieve 5 and the compensation molecular sieve 7 are both zeolite molecular sieves 5 when preparing oxygen.
The pressing plate 8 is made of a palm cushion.
The compensating method of the automatic molecular sieve compaction compensating device comprises the following steps that (1) airflow entering the lower cavity 3 from the lower vent pipe is adsorbed by the molecular sieve 5, prepared nitrogen or oxygen enters the upper cavity 2 through the air-permeable partition plate 4 and flows out and collects from the upper vent device, and when the molecular sieve 5 is adsorbed and nearly saturated, the molecular sieve 5 is decompressed and regenerated; (2) because the adsorption and regeneration of the molecular sieve 5 are alternately carried out, particles of the molecular sieve 5 are excessively rubbed and pulverized to form micro gaps, airflow is directly blown to the molecular sieve 5 to damage the particles of the molecular sieve 5, and when the molecular sieve 5 is locally overloaded due to the concentrated blowing of the airflow to one position, a cylinder piston rod of the automatic compressing device automatically presses down the compensating molecular sieve 7 through the compensating piston 9 and the pressing plate 8 to compress and compensate the molecular sieve 5 in time; (3) the check valve 12 communicated with the rodless cavity of the air cylinder 11 can block the backflow of compressed air, so that the pressure of the pressure plate 8 for pressing the compensation molecular sieve 7 is kept stable; (4) the cylinder sensor 13 of the cylinder piston position detection warning device is matched with a magnetic ring or a magnet on the cylinder piston to detect the position of the cylinder piston and send out an alarm prompt through the alarm 14, when the compensating piston 9 reaches a set maximum stroke position, the corresponding set alarm 14 sends out the alarm prompt, and the failed molecular sieve 5 and the compensating molecular sieve 7 need to be replaced.
Example 2, as shown in figure 2: an automatic compaction compensation device for a molecular sieve, comprising: the adsorption tower comprises an adsorption tower body 1, a ventilating partition plate 4 for dividing the adsorption tower body 1 into an upper cavity 2 and a lower cavity 3, a molecular sieve 5 arranged in the lower cavity 3, a lower ventilating pipe arranged outside the adsorption tower body 1 and one end of the lower ventilating pipe is communicated with the lower end of the lower cavity 3, an upper ventilating device with one end communicated with the upper cavity 2 and the other end extending out of the adsorption tower body 1, a compensating cylinder 6 with the lower end penetrating through the upper end of the adsorption tower body 1, the ventilating partition plate 4 and the side wall welded with the adsorption tower body 1, a compensating molecular sieve 7 arranged in the compensating cylinder 6 and positioned on the upper side of the molecular sieve 5, a pressing plate 8 arranged in the compensating cylinder 6 and used for pressing the upper end of the compensating molecular sieve 7, and an automatic pressing device used for pressing a compensating piston 9 on the upper end of the pressing plate 8; the material of the air-permeable partition plate 4 is a microporous air-permeable plate.
The automatic pressing device comprises: the cover plate 10 is in threaded connection with the upper end of the compensation cylinder 6, and the cylinder 11 is provided with a cylinder piston position detection warning device and is in threaded connection with the upper end of the cover plate 10; the piston rod of the cylinder 11 passes through the cover plate 10 and is in threaded connection with the upper end of the compensation piston 9.
The cylinder piston position detection warning device include: a magnetic ring arranged on the cylinder piston, two alarms 14 provided with cylinder inductors 13; the alarm devices 14 are arranged along the moving direction of the piston of the cylinder and are respectively screwed with the cylinder body 15 of the cylinder.
The cylinder inductor 13 is a magnetic switch or a Hall switch; the alarm 14 is a voice alarm or a light alarm.
The upper ventilating device comprises: two vertical vent pipes 20 which are arranged in the lower cavity 3 and one end of which passes through the ventilating partition plate 4 and is communicated with the upper cavity 2, and a transverse vent pipe 21 one end of which passes through the side wall of the adsorption tower body 1 and is respectively communicated with the other end of the vertical vent pipe 20; the other end of the transverse air pipe 21 is provided with a connecting flange 19.
The molecular sieve 5 and the compensation molecular sieve 7 are both carbon molecular sieves 5 when preparing nitrogen, and the molecular sieve 5 and the compensation molecular sieve 7 are both zeolite molecular sieves 5 when preparing oxygen.
The pressing plate 8 is made of a palm cushion.
The upper end of the adsorption tower body is provided with a plurality of hoisting lugs 22.
The compensation method of the automatic molecular sieve compaction compensation device comprises the following steps that (1) airflow entering a lower cavity 3 from a lower vent pipe is adsorbed by a molecular sieve 5, and then prepared nitrogen or oxygen enters an upper cavity 2 from a ventilating partition plate 4 and flows out and collects from an upper ventilating device, and (2) the pressure of the airflow entering from the lower vent pipe is reduced to decompress and regenerate the molecular sieve 5; (3) because the adsorption and regeneration of the molecular sieve 5 are alternately carried out, particles of the molecular sieve 5 are excessively rubbed and pulverized to form micro gaps, airflow is directly blown to the molecular sieve 5 to damage the particles of the molecular sieve 5, and when the molecular sieve 5 is locally overloaded due to the concentrated blowing of the airflow to one position, a cylinder piston rod of the automatic compressing device automatically presses down the compensating molecular sieve 7 through the compensating piston 9 and the pressing plate 8 to compress and compensate the molecular sieve 5 in time; (4) the check valve 12 communicated with the rodless cavity of the air cylinder 11 can block the backflow of compressed air, so that the pressure of the pressure plate 8 for pressing the compensation molecular sieve 7 is kept stable; (5) the cylinder sensor 13 of the cylinder piston position detection warning device is matched with a magnetic ring or a magnet on the cylinder piston to detect the position of the cylinder piston and send out an alarm prompt through the alarm 14, when the compensating piston 9 reaches a set maximum stroke position, the corresponding set alarm 14 sends out the alarm prompt, and the failed molecular sieve 5 and the compensating molecular sieve 7 need to be replaced.
In addition to the above embodiments, the technical features or technical data of the present invention can be selected and combined again within the scope disclosed in the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without creative efforts, and therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (10)
1. An automatic compaction compensation device for a molecular sieve, comprising: adsorption tower body, characterized by, molecular sieve automatic compaction compensation arrangement still include: the adsorption tower comprises a gas-permeable partition plate, a molecular sieve, a lower vent pipe, an upper ventilating device, a compensation cylinder, a compensation molecular sieve, a pressing plate and an automatic pressing device, wherein the gas-permeable partition plate divides the adsorption tower body into an upper cavity and a lower cavity, the molecular sieve is arranged in the lower cavity, the lower vent pipe is communicated with the lower end of the lower cavity, one end of the upper ventilating device is communicated with the upper cavity, the other end of the upper ventilating device extends out of the adsorption tower body, the lower end of the compensation cylinder penetrates through the upper end of the adsorption tower body and the gas-permeable partition plate and is positioned at the upper end of the molecular sieve, the compensation molecular sieve is arranged in the compensation cylinder and is positioned at the upper side of the molecular sieve, the pressing plate is arranged in the compensation cylinder and presses the upper end of the compensation molecular sieve, and the automatic pressing device is arranged for pressing a compensation piston at the upper end of the pressing plate.
2. The automatic compaction compensation device for molecular sieves of claim 1, wherein: the automatic pressing device comprises: the cover plate is connected with the upper end of the compensation cylinder, and the cylinder is provided with a cylinder piston position detection warning device and is connected with the upper end of the cover plate; the piston rod of the cylinder penetrates through the cover plate to be connected with the upper end of the compensation piston.
3. The automatic compaction compensation device for molecular sieves of claim 2, wherein: the automatic pressing device further comprises: a check valve in communication with the rodless chamber of the cylinder.
4. The automatic compaction compensation device for molecular sieves of claim 2 or 3, wherein: the cylinder piston position detection warning device include: a magnet ring or a magnet arranged on the piston of the cylinder, and a plurality of alarms provided with cylinder inductors; the alarms are arranged along the motion direction of the cylinder piston and are respectively connected with the cylinder body of the cylinder.
5. The automatic compaction compensation device for molecular sieves of claim 4, wherein: the cylinder inductor is a magnetic switch or a Hall switch; the alarm is a voice alarm or a light alarm.
6. The automatic compaction compensation device for molecular sieves of claim 1, 2 or 3, wherein: the upper ventilating device comprises: the air vent is sleeved outside the compensation cylinder, the side wall of the air vent is connected with the adsorption tower body, one end of the upper vent pipe is connected with the side wall of the air vent, and a plurality of air outlet holes are circumferentially distributed along the side wall of the air vent and are communicated with the upper cavity; the other end of the upper breather pipe is provided with a connecting flange.
7. The automatic molecular sieve packing compensation device of claim 1, 2 or 3, wherein the upper aeration device comprises: a plurality of vertical vent pipes which are arranged in the lower cavity and one end of each vertical vent pipe passes through the breathable partition plate and is communicated with the upper cavity, and a transverse vent pipe one end of which passes through the side wall of the adsorption tower body and is respectively communicated with the other end of each vertical vent pipe; the other end of the transverse air pipe is provided with a connecting flange.
8. The automatic molecular sieve compaction compensation device of claim 1, 2 or 3, wherein the molecular sieve and the compensation molecular sieve are both carbon molecular sieves when producing nitrogen and zeolite molecular sieves when producing oxygen.
9. The automatic compaction compensation device for molecular sieves of claim 1, 2 or 3 wherein the material of the pressure plate is a coir mat.
10. The automatic molecular sieve compaction compensation device of claim 1, 2 or 3, wherein the adsorption tower body is provided with a plurality of lifting lugs at the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120802214.6U CN215196180U (en) | 2021-04-19 | 2021-04-19 | Automatic compressing and compensating device for molecular sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120802214.6U CN215196180U (en) | 2021-04-19 | 2021-04-19 | Automatic compressing and compensating device for molecular sieve |
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| Publication Number | Publication Date |
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| CN215196180U true CN215196180U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120802214.6U Active CN215196180U (en) | 2021-04-19 | 2021-04-19 | Automatic compressing and compensating device for molecular sieve |
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2021
- 2021-04-19 CN CN202120802214.6U patent/CN215196180U/en active Active
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