CN212701221U

CN212701221U - Assembled pressure swing adsorption jar

Info

Publication number: CN212701221U
Application number: CN202021049149.6U
Authority: CN
Inventors: 彭宗文; 许明
Original assignee: GANZHOU CHUANHUI GAS EQUIPMENT MANUFACTURING CO LTD
Current assignee: GANZHOU CHUANHUI GAS EQUIPMENT MANUFACTURING CO LTD
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-03-16
Anticipated expiration: 2030-06-09

Abstract

The utility model relates to an air separation equipment technical field provides an assembled pressure swing adsorption jar. Including the cylindrical jar body, the internal carbon molecular sieve that is equipped with of jar, the top of the jar body is equipped with the extrusion room, the extrusion room slides there is the piston board, the bottom of piston board is equipped with the coconut palm board, the extrusion of coconut palm board bottom has the carbon molecular sieve, the bottom in extrusion room is fixed with the retaining ring, the upper end of retaining ring is fixed with press switch, the lateral wall of the jar body is equipped with the warning light, the outside in extrusion room is fixed with curved screen plate, screen plate is connected with the outlet duct, be equipped with the voltage-sharing outlet duct at jar body middle part, the bottom of carbon molecular sieve also is equipped with the coconut palm pad, the bottom that the coconut palm was filled up has accumulational inert porcelain ball, the bottom of inert porcelain ball is supported by curved screen plate, jar body bottom is equipped with the air. The utility model discloses be convenient for installation and transportation, can real time monitoring adsorption tank interior molecular sieve quantity, can in time remind and add molecular sieve or replace the molecular sieve, improve production efficiency.

Description

Assembled pressure swing adsorption jar

Technical Field

The utility model relates to an air separation equipment technical field, in particular to assembled pressure swing adsorption jar.

Background

The method for separating nitrogen from oxygen by using air as a raw material and a carbon molecular sieve as an adsorbent applies a pressure swing adsorption principle and utilizing selective adsorption of the carbon molecular sieve on the oxygen and the nitrogen is known as PSA (pressure swing adsorption) nitrogen preparation, the separation effect of the molecular sieve on the oxygen and the nitrogen is mainly based on the difference of diffusion rates of the two gases on the surface of the molecular sieve, and the carbon molecular sieve is carbon-based adsorption with certain characteristics of activated carbon and the molecular sieve.

Factors that affect the adsorption efficiency of molecular sieves include the process conditions during nitrogen generation, and the nature of the molecular sieve adsorbent itself. In the adsorption tower, the newly added molecular sieve is particles with a certain particle size, and in the process of pressurizing nitrogen production, the molecular sieve has pulverization and sinking of different degrees due to the impact of high-pressure gas and continuous flowing abrasion of airflow, so that on one hand, the loss of the molecular sieve adsorbent is caused, and on the other hand, the particle size of the pulverized molecular sieve becomes very small, so that the bed pressure drop of the adsorption tower is increased, and the nitrogen production efficiency is reduced. The regeneration efficiency of the molecular sieve will also have a great influence on the adsorption capacity of the molecular sieve. Therefore, the height of the carbon level in the carbon molecular sieve adsorption tower needs to be monitored in real time, and the carbon molecular sieve is supplemented in time when sinking to the warning level.

Meanwhile, in the prior art, the pressure swing adsorption tower is generally high, so that the space of a factory is fully utilized, and the air separation efficiency is improved. However, too high an adsorption tower is a difficult problem for transportation and installation. Therefore, the prior art has improved the adsorption tower in the direction of reducing the height of the adsorption tower and increasing the contact area of the molecular sieve and the air.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an assembled pressure swing adsorption jar, mainly used solve provide the adsorption tank of being convenient for the equipment, modularize into the adsorption tower high shorter adsorption tank, and the transportation and the equipment of being convenient for replace or add the adsorption tower convenience that the molecular sieve is also higher than the height.

The above technical problem of the present invention can be solved by the following technical solutions: the carbon molecular sieve extrusion tank comprises a cylindrical tank body, wherein a carbon molecular sieve is arranged in the tank body, a compression chamber is arranged at the top of the tank body, a piston plate slides in the compression chamber, a top cover is arranged at the top end cover of the compression chamber, a compression cylinder is fixed in the middle of the top cover, a cylinder ejector rod is connected to the bottom of the compression cylinder, the bottom of the cylinder ejector rod is connected with the piston plate, a coconut pad is arranged at the bottom of the piston plate, the carbon molecular sieve is extruded at the bottom of the coconut pad, a check ring is fixed at the bottom of the compression chamber, a press switch is fixed at the upper end of the check ring, a warning lamp is arranged on the side wall of the tank body, the press switch is electrically connected with the warning lamp, an arc-shaped sieve plate is fixed at the outer side of the compression chamber, the bottom of the sieve plate is also fixed on the inner wall of the tank body, the utility model discloses a carbon molecular sieve, including the jar body, sieve plate, carbon molecular sieve, coconut palm pad, jar body bottom also is equipped with carbon molecular sieve, the sieve plate bottom is connected with the outlet duct, the outlet duct will gas collection storehouse and external intercommunication the jar body middle part is equipped with the voltage-sharing outlet duct, the pipe shaft of voltage-sharing outlet duct is equipped with the air vent, the voltage-sharing outlet duct by carbon molecular sieve parcel, carbon molecular sieve's bottom also is equipped with the coconut palm pad, the bottom of coconut pad is piled up inert porcelain ball, the bottom of inert porcelain ball is supported by arc sieve plate, jar body bottom is in the sieve plate below is equipped with the draft slot, the draft slot bottom is fixed with the pivot, the top of pivot is rotated and is connected with the turbofan, the lateral wall bottom.

Preferably, the sleeves form 120 degrees with each other about the central axis of the tank body, the sleeve columns form 120 degrees with each other about the central axis of the tank body, and a sleeve column is arranged at the bottom of the tank body right below each sleeve. The sleeves and the sleeve columns which are distributed at equal angles can meet the requirement that the sleeve column of the tank body positioned above can be sleeved into the sleeve of the tank body positioned below when the tank bodies are stacked.

Preferably, the top of the tank body is provided with a plurality of lifting rings, and the lifting rings are used for lifting the tank body.

Preferably, the compression cylinder is provided with a pressure gauge, and the pressure gauge measures the pressure in the compression cylinder. The pressure in the compressing cylinder is monitored to control the force of the piston plate for compressing the carbon molecular sieve, so that the distribution density of the molecular sieve is ensured.

Preferably, threaded holes are formed in four corners of the bottom of the tank body, and the threaded holes are reserved for mounting anchor feet. The screw hole of reservation installation lower margin can guarantee the variety of adsorption tank installation, both can directly cup joint the installation between adsorption tank and adsorption tank, also can install on the shelf of adsorption tower through the lower margin.

Preferably, the pipe body of the pressure equalizing air outlet pipe is in a cross structure. The contact area between the pressure equalizing air outlet pipe and the molecular sieve can be increased, so that the pressure in the adsorption tank can be released more quickly and uniformly under the ventilation state of the pressure equalizing air outlet pipe.

Preferably, the screen plate is provided with a reinforcing ring, the bottom of the reinforcing ring is further provided with a plurality of stand columns, and the stand columns are fixed at the bottom of the tank body. The bearing capacity of the screen plate at the bottom is increased, and the screen plate is prevented from being collapsed and deformed by the molecular sieve.

The utility model has the advantages that: miniaturize the adsorption tower into the adsorption tank of being convenient for the installation, be convenient for installation and transportation, molecular sieve quantity in the adsorption tank can real time monitoring simultaneously can in time remind and add molecular sieve or replace the molecular sieve, and the pressure-equalizing outlet duct designs into the cross shape, can accelerate the voltage-equalizing speed, shortens the voltage-equalizing time to improve production efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an installation structure of the present invention;

the notation in the figure is: 1. the pressure cylinder comprises a tank body, 2, a pressure cylinder, 3, a top cover, 4, a cylinder ejector rod, 5, a piston plate, 6, a pressure gauge, 7, a coconut pad, 8, a retainer ring, 9, a press switch, 10, a warning lamp, 11, a screen plate, 12, an air outlet pipe, 13, a pressure equalizing air outlet pipe, 1301, an air vent, 14, a reinforcing ring, 15, a stand column, 16, a turbine fan, 17, a rotating shaft, 18, an air inlet pipe, 19, a sleeve column, 20, a sleeve, 21, a lifting ring, 22, a threaded hole, 23, an inert ceramic ball, 24, a carbon molecular sieve, 25, an air collecting bin, 26, a squeezing chamber and 27, wherein the pressure cylinder is arranged.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): an assembled pressure swing adsorption tank of this embodiment, as shown in fig. 1-2, includes a cylindrical tank body 1, a carbon molecular sieve 24 is disposed in the tank body 1, a squeezing chamber 26 is disposed on the top of the tank body 1, a piston plate 5 slides in the squeezing chamber 26, a top cover 3 is disposed on the top end cover of the squeezing chamber 26, a compressing cylinder 2 is fixed in the middle of the top cover 3, a cylinder rod 4 is connected to the bottom of the compressing cylinder 2, the bottom of the cylinder rod 4 is connected to the piston plate 5, a coconut pad is disposed on the bottom of the piston plate 5, the carbon molecular sieve 24 is squeezed at the bottom of the coconut pad, a retainer ring 8 is fixed at the bottom of the squeezing chamber 26, a press switch 9 is fixed at the upper end of the retainer ring 8, a warning light 10 is disposed on the side wall of the tank body 1, the press switch 9 is electrically connected to the warning light 10, an arc-shaped sieve plate 11 is fixed on the outer side of the squeezing chamber 26, the bottom of the sieve plate 11 is also, the bottom of the screen plate 11 is also provided with a carbon molecular sieve 24, the screen plate 11 is connected with an air outlet pipe 12, the air outlet pipe 12 connects the gas collecting bin 25 with the outside, be equipped with voltage-sharing outlet duct 13 in the middle part of jar body 1, the shaft of voltage-sharing outlet duct 13 is equipped with air vent 1301, voltage-sharing outlet duct 13 is wrapped up by carbon molecular sieve 24, carbon molecular sieve 24's bottom also is equipped with coconut pad 7, coconut pad 7's bottom is piled up there is inert porcelain ball 23, inert porcelain ball 23's bottom is supported by arc screen board 11, jar body 1 bottom is equipped with air duct 27 in screen board 11 below, air duct 27 bottom is fixed with pivot 17, the top of pivot 17 is rotated and is connected with turbine 16, jar body 1's lateral wall bottom is equipped with intake pipe 18, intake pipe 18 is with air duct 27 and external intercommunication, jar body 1's top is equipped with a plurality of sleeves 20, jar body 1's bottom is equipped with a plurality of sleeves 19, all be equipped with a sleeve 19 under every sleeve.

Wherein, the sleeves 20 mutually form 120 degrees with respect to the central axis of the tank body 1, and the sleeve columns 19 also mutually form 120 degrees with respect to the central axis of the tank body 1. The sleeves 20 and the sleeve columns 19 which are distributed at equal angles can meet the requirement that the sleeve column 19 of the upper tank body 1 can be sleeved into the sleeve 20 of the lower tank body 1 when the tank bodies 1 are stacked.

Wherein, the top of jar body 1 is equipped with a plurality of rings 21, and rings 21 are used when being used for hoisting jar body 1.

Wherein, compress tightly cylinder 2 and be equipped with manometer 6, manometer 6 measures and compresses tightly the cylinder 2 internal pressure. The pressure in the compressing cylinder 2 is monitored to control the force of the piston plate 5 compressing the carbon molecular sieve 24, so that the distribution density of the molecular sieve is ensured.

Wherein, the bottom four corners of jar body 1 is equipped with screw hole 22, and screw hole 22 reserves and is used for installing the lower margin. Reserve the screw hole 22 of installation lower margin, can guarantee the variety of adsorption tank installation, both can directly cup joint the installation between adsorption tank and adsorption tank, also can install on the shelf of adsorption tower through the lower margin.

Wherein, the pipe body of the pressure equalizing air outlet pipe 13 is in a cross structure. The contact area between the pressure equalizing air outlet pipe 13 and the molecular sieve can be increased, so that the pressure in the adsorption tank can be released more quickly and uniformly in the ventilation state of the pressure equalizing air outlet pipe 13.

Wherein, sieve plate 11 is equipped with reinforcing ring 14, and reinforcing ring 14 bottom still is equipped with many stands 15, and stand 15 is fixed in jar body 1 bottom. The bearing capacity of the screen plate 11 at the bottom is increased, and the screen plate is prevented from being collapsed and deformed by the molecular sieve.

During the specific use, let in compressed air from intake pipe 18, compressed air drives 16 leaves of turbine fan and rotates, and 16 leaves of turbine fan disperse compressed air's blowing direction to make the even through sieve plate 11 of following each angle of air ability. The compressed air passing through the screen plate 11 enters the inert ceramic balls 23, and under the blocking and collision action of the inert ceramic balls 23, the compressed air is redirected and the impact force is weakened again, so that the carbon molecular sieve 24 is prevented from being impacted by excessive force. Meanwhile, because the gap between the ceramic balls is large, in order to prevent the carbon molecular sieve 24 from falling into the ceramic balls, a coconut pad is also added between the ceramic balls and the molecular sieve. Meanwhile, after the sieve is used for a period of time, the molecular sieve which is thinned by air impact can be blocked by the coconut pad, and cannot enter the ceramic balls too much to block the sieve plate 11 finally, so that the maintenance is difficult.

The compressing cylinder 2 at the top of the tank body 1 is set to have a uniform pressure value, acts on the piston plate 5 through the cylinder ejector rod 4, compresses the carbon molecular sieve 24, avoids leaving a large gap between the molecular sieves, enables the molecular sieves to be impacted by compressed air and collide with each other, enables the molecular sieves to be broken into small blocks, and weakens the adsorption efficiency. In the process of molecular sieve consumption, compress tightly cylinder 2 and constantly push down piston plate 5 in order to guarantee the density between the molecular sieve, move to push down switch 9 top when piston plate 5 to when pushing down push down switch 9, warning light 10 lights, and the operation personnel should control the valve this moment, and the adsorption tank that will need to add or replace carbon molecular sieve 24 is shut down, opens top cap 3 at adsorption tank top and adds or replace carbon molecular sieve 24.

In normal operation, under the pressurization condition of the adsorption tank, the carbon molecular sieve 24 adsorbs oxygen, nitrogen is retained in the carbon molecular sieve 24, flows into the coconut pad from the carbon molecular sieve 24 and enters the gas collection bin 25, and finally flows into the gas outlet pipe 12 from the gas collection bin 25 and enters the gas storage tank connected with the gas outlet pipe 12.

The adsorption tanks can be installed and spliced in the process of on-site planning, a plurality of adsorption tanks can be directly spliced into a higher adsorption tower for use, and the adsorption tanks can be installed and fixed on the support. In the embodiment, a plurality of adsorption tanks are directly spliced for use, and the attached figure 2 is a schematic diagram of an assembled structure. The adsorption tank is directly hoisted, and the purpose of assembly and use is achieved through the positioning and fixing of the sleeve 20 and the sleeve column 19. However, it is more convenient to mount the canister on the support from the viewpoint of adding or replacing the carbon molecular sieve 24.

The present embodiment is only an exemplary embodiment of the present invention, and for those skilled in the art, based on the application method and principle disclosed in the present invention, various modifications or variations can be easily made, and not only limited to the structure described in the above embodiments of the present invention, therefore, the manner described in the foregoing is only a preferred embodiment, but not limiting, and all equivalent changes and modifications made according to the present invention are within the scope of the present invention.

Claims

1. The assembled pressure swing adsorption tank comprises a cylindrical tank body (1), wherein a carbon molecular sieve (24) is arranged in the tank body (1), and is characterized in that a compression chamber (26) is arranged at the top of the tank body (1), a piston plate (5) slides in the compression chamber (26), a top cover (3) is arranged at the top end of the compression chamber (26), a compression cylinder (2) is fixed in the middle of the top cover (3), a cylinder ejector rod (4) is connected to the bottom of the compression cylinder (2), the bottom of the cylinder ejector rod (4) is connected with the piston plate (5), a coconut pad (7) is arranged at the bottom of the piston plate (5), the carbon molecular sieve (24) is extruded at the bottom of the coconut pad (7), a retainer ring (8) is fixed at the bottom of the compression chamber (26), a press switch (9) is fixed at the upper end of the retainer ring (8), a warning lamp (10) is arranged on the side wall of the tank body (1), the pressing switch (9) is electrically connected with the warning lamp (10), an arc-shaped screen plate (11) is fixed on the outer side of the squeezing chamber (26), the bottom of the screen plate (11) is further fixed on the inner wall of the tank body (1), a gas collecting bin (25) is formed among the screen plate (11), the inner wall of the tank body (1) and the outer wall of the squeezing chamber (26), a carbon molecular sieve (24) is also arranged at the bottom of the screen plate (11), the screen plate (11) is connected with an air outlet pipe (12), the air outlet pipe (12) communicates the gas collecting bin (25) with the outside, a pressure-equalizing air outlet pipe (13) is arranged in the middle of the tank body (1), a vent hole (1301) is formed in the pipe body of the pressure-equalizing air outlet pipe (13), the air outlet pipe (13) is wrapped by the pressure-equalizing carbon molecular sieve (24), a coconut pad (7) is also arranged at the bottom of the carbon molecular sieve, the bottom of coconut palm pad (7) is piled up there is inert porcelain ball (23), the bottom of inert porcelain ball (23) is supported by arc screen board (11), the jar body (1) bottom is in screen board (11) below is equipped with ventilation groove (27), ventilation groove (27) bottom is fixed with pivot (17), the top of pivot (17) is rotated and is connected with turbofan (16), the lateral wall bottom of the jar body (1) is equipped with intake pipe (18), intake pipe (18) will ventilation groove (27) and external intercommunication, the top of the jar body (1) is equipped with a plurality of sleeves (20), the bottom of the jar body (1) is equipped with a plurality of cover posts (19).

2. An assembled pressure swing adsorption tank according to claim 1 wherein said sleeves (20) are spaced 120 ° from each other about the central axis of said tank (1), said studs (19) are also spaced 120 ° from each other about the central axis of said tank (1), and one said stud (19) is disposed directly below each said sleeve (20).

3. An assembled pressure swing adsorption tank according to claim 1, wherein the top of the tank body (1) is provided with a plurality of lifting rings (21).

4. An assembled pressure swing adsorption tank according to claim 1, wherein the hold-down cylinder (2) is provided with a pressure gauge (6), the pressure gauge (6) measuring the pressure in the hold-down cylinder (2).

5. The assembled pressure swing adsorption tank of claim 1, wherein threaded holes (22) are formed in four corners of the bottom of the tank body (1), and the threaded holes (22) are reserved for mounting anchor feet.

6. An assembled pressure swing adsorption tank according to claim 1, wherein the body of the pressure equalizing outlet pipe (13) is in a cross structure.

7. The assembled pressure swing adsorption tank of claim 1, wherein the screen plate (11) is provided with a reinforcing ring (14), the bottom of the reinforcing ring (14) is further provided with a plurality of columns (15), and the columns (15) are fixed to the bottom of the tank body (1).