CN215626810U

CN215626810U - Pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making

Info

Publication number: CN215626810U
Application number: CN202122187447.2U
Authority: CN
Inventors: 谢贵琴; 周飞; 杨非; 李光飞
Original assignee: Jiangsu Air Separation Technology Equipment Manufacturing Co ltd
Current assignee: Jiangsu Air Separation Technology Equipment Manufacturing Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-25
Anticipated expiration: 2031-09-10

Abstract

The utility model belongs to the field of nitrogen making equipment, in particular to a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making, aiming at the problems that the installation steps of the prior adsorption tower are too complicated, the subsequent maintenance and disassembly of the adsorption tower are inconvenient, and the cost of the subsequent maintenance is increased, the utility model provides a scheme which comprises a box body with an opening arranged at the front side, two positioning plates are fixedly arranged on the inner wall of the rear side of the box body, the two positioning plates are respectively provided with two positioning plates, the same first adsorption tower and the same second adsorption tower can be detachably clamped on the two positioning plates, and a clamping block is fixedly arranged on the inner wall of the rear side of the box body. The maintenance cost is reduced.

Description

Pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making

Technical Field

The utility model relates to the technical field of nitrogen making equipment, in particular to a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making.

Background

The pressure swing adsorption nitrogen production technology is characterized in that the nitrogen is separated under the pressurization condition and the tail gas is desorbed during depressurization by utilizing the difference of two or more gases in the aspects of adsorption quantity, adsorption speed, adsorption force and the like of a carbon molecular sieve and the characteristic that the adsorption capacity of the carbon molecular sieve changes along with the change of pressure, so that the gas separation and the recycling of the carbon molecular sieve are realized. PSA nitrogen production has the advantages that: the process is mature, about 99.99 to 99.999 percent of stable nitrogen can be prepared, and the gas production time is about 30 minutes.

The publication No. CN205803006U discloses a pressure swing adsorption nitrogen generator capable of replacing membrane separation nitrogen generation, the installation steps of the adsorption tower are too complicated, the subsequent maintenance and disassembly of the adsorption tower are inconvenient, and the cost of the subsequent maintenance is increased, so we provide a pressure swing adsorption nitrogen generator capable of replacing membrane separation nitrogen generation, so as to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the installation steps of an adsorption tower are too complicated, the adsorption tower is inconvenient to maintain and disassemble subsequently and the cost of the subsequent maintenance is increased in the prior art, and provides a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making comprises a box body with an opening on the front side, a positioning plate is fixedly arranged on the inner wall of the rear side of the box body, two positioning plates are arranged, the same first adsorption tower and the same second adsorption tower can be detachably clamped on the two positioning plates, a clamping block is fixedly arranged on the inner wall of the rear side of the box body, the clamping block is arranged in a hollow way, the same first shaft and the same second shaft are rotatably arranged on the inner wall of the top part and the inner wall of the bottom part of the clamping block, a first hoop and a second hoop are respectively and fixedly arranged on the first shaft and the second shaft, and the number of the first hoop and the second hoop is two, the left sides of the two first hoops and the right sides of the two second hoops respectively extend to the left side and the right side of the clamping block, and the two first hoops and the two second hoops can be respectively and movably clamped with the first adsorption tower and the second adsorption tower in a detachable mode.

Preferably, for the convenience of promoting driven reliability, the top fixed mounting of grip block has the motor of holding tightly, and holds the inside that the top of motor output shaft extended to the grip block tightly, the bottom fixed mounting who holds the motor output shaft tightly has the lead screw, and the outside threaded connection of lead screw has the drive plate, an axle and No. two axles all are connected with the drive plate transmission.

Preferably, in order to simplify the installation steps and improve the linkage, the front side of the drive plate is rotatably provided with two cranks, the bottoms of the two cranks are respectively and movably provided with a rack, the outer sides of the first shaft and the second shaft are respectively and fixedly sleeved with a gear, and the gears are meshed with the corresponding racks.

Preferably, for the convenience of being linked up connecting pipe, lower connecting pipe, intake pipe and blast pipe, the top and the equal sealed intercommunication in bottom of adsorption tower and No. two adsorption towers have communicating pipe, and the inside that is located two communicating pipes of top all is provided with the connecting pipe, and the inside that is located two communicating pipes of below all is provided with down the connecting pipe, and the top sealing threaded connection of two last connecting pipes has same blast pipe, and the bottom sealing threaded connection of two lower connecting pipes has same intake pipe.

Preferably, for the convenience of subsequent maintenance dismantlement operation, the one end that intake pipe and blast pipe kept away from each other extends to the left side and the right side of box respectively, the equal sealed intercommunication in one side that intake pipe and blast pipe are close to each other has the screwed joint pipe, the screwed joint pipe and its corresponding last connecting pipe and the sealed threaded connection of lower connecting pipe, the inside seal slidable mounting of communicating pipe has the sleeve pipe, and the sleeve pipe is connected with its corresponding last connecting pipe and the sealed rotation of lower connecting pipe.

Preferably, for the flexibility of hoisting device body, be convenient for remove it, the front side of box articulates there are two shutters, and two shutters cover the opening of box completely, the bottom fixed mounting of box has the board of accepting, and the bottom four corners position of just accepting the board all is provided with the brake wheel.

The utility model has the beneficial effects that: the specifications of the first adsorption tower, the second adsorption tower and the holding motor can be selected according to actual requirements, a plurality of molecular sieves with different pressures are filled in the first adsorption tower and the second adsorption tower, electromagnetic valves are arranged on the outer sides of the two upper connecting pipes and the two lower connecting pipes, when the first adsorption tower and the second adsorption tower are installed, the stop door is firstly opened, the first adsorption tower and the second adsorption tower are positioned on the positioning plate, the switch of the holding motor is pressed, the lead screw rotates along with the output shaft of the holding motor, the lead screw is in threaded connection with the driving plate, the rotation of the lead screw can be converted into upward movement of the driving plate, and then through the two cranks, mutually-close acting forces can be provided for the two racks, the racks are meshed with the gears, the transverse movement of the racks can be converted into arc movement of the first shaft and the second shaft, and the first adsorption tower and the second adsorption tower are clamped by the two first hoops and the two second hoops on the first shaft After the first adsorption tower and the second adsorption tower are clamped, the two upper connecting pipes and the two lower connecting pipes are respectively connected with the exhaust pipe and the air inlet pipe in a sealing and threaded manner, compared with a conventional pressure swing adsorption nitrogen making device, the two adsorption towers are arranged in number, so that adsorption and desorption can be alternately completed, the working efficiency is high, the adsorption towers can be conveniently mounted and dismounted, the subsequent maintenance steps are simplified, and the maintenance cost is reduced;

in order to solve the problem that the upper connecting pipe and the lower connecting pipe are not convenient to separate from the exhaust pipe and the air inlet pipe, the upper connecting pipe and the lower connecting pipe can be conveniently detached through the detachable threaded connection relationship between the upper connecting pipe and the threaded connector pipe;

in order to solve the problem that an adsorption tower and No. two adsorption towers are not convenient for carry out the location, through two locating plates that set up, two location arc walls have all been seted up to the front side of two locating plates, can be convenient for fix a position the installation to an adsorption tower and No. two adsorption towers.

Drawings

FIG. 1 is a perspective view of a partial structure of a pressure swing adsorption nitrogen plant according to the present invention, which can replace membrane separation nitrogen production;

FIG. 2 is a schematic front view of a pressure swing adsorption nitrogen plant according to the present invention, which can replace membrane separation nitrogen production;

FIG. 3 is a perspective view of a positioning plate structure of a pressure swing adsorption nitrogen generator of the present invention, which can replace membrane separation nitrogen generation;

fig. 4 is an enlarged schematic view of a part a of the structure in fig. 2 of a pressure swing adsorption nitrogen generator capable of replacing membrane separation nitrogen generation according to the present invention.

In the figure: the device comprises a bearing plate 1, a brake wheel 2, a box body 3, a positioning plate 4, an adsorption tower 5, an adsorption tower 6 and a adsorption tower II, an air inlet pipe 7, an air outlet pipe 8, a threaded joint pipe 9, a motor 10, an upper connecting pipe 11, a lower connecting pipe 12, a communicating pipe 13, a clamping block 14, a hoop 15, a hoop 16 and a hoop II, a screw rod 17, a drive plate 18, a crank 19, a rack 20, a shaft 21, a shaft 22 and a gear 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-4, a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making, comprising a box body 3 with an opening on the front side, a door arranged on the opening of the box body 3 for facilitating the opening of the box body 3 and facilitating the maintenance of the components inside the box body 3, a positioning plate 4 fixedly arranged on the inner wall of the back side of the box body 3, two positioning plates 4 arranged in number, an arc-shaped positioning groove arranged on the front side of the positioning plate 4 for positioning the adsorption tower, a same first adsorption tower 5 and a same second adsorption tower 6 detachably and movably clamped on the two positioning plates 4, a plurality of molecular sieves arranged inside the first adsorption tower 5 and the second adsorption tower 6, a clamping block 14 fixedly arranged on the inner wall of the back side of the box body 3, the clamping block 14 arranged in a hollow manner, a same first shaft 21 and a same second shaft 22 rotatably arranged on the inner wall of the top and the bottom of the clamping block 14, the specifications of the first shaft 21 and the second shaft 22 are consistent, the first hoop 15 and the second hoop 16 are fixedly installed on the first shaft 21 and the second shaft 22 respectively, the number of the first hoop 15 and the second hoop 16 is two, the left sides of the two first hoops 15 and the right sides of the two second hoops 16 extend to the left side and the right side of the clamping block 14 respectively, the two first hoops 15 and the two second hoops 16 can be separated from the first adsorption tower 5 and the second adsorption tower 6 respectively and movably clamped, the position stability of the first adsorption tower 5 and the second adsorption tower 6 after being clamped is high, in order to improve the reliability of transmission, the clamping motor 10 is fixedly installed at the top of the clamping block 14, the clamping motor 10 can be a stepping motor, the top of an output shaft of the clamping motor 10 extends to the inside of the clamping block 14, the bottom of the output shaft of the clamping motor 10 is fixedly installed with the screw rod 17, and the outer side of the screw rod 17 is in threaded connection with the driving plate 18, two limiting columns are further arranged at the top of the clamping block 14 and are in sliding connection with the driving plate 18, the driving plate 18 is limited, a first shaft 21 and a second shaft 22 are in transmission connection with the driving plate 18, in order to simplify installation steps, linkage is improved, cranks 19 are rotatably installed on the front side of the driving plate 18, the number of the cranks 19 is two, the two cranks 19 are arranged in a splayed mode, racks 20 are movably installed at the bottoms of the two cranks 19, transverse plates are fixed on the inner wall of the left side and the inner wall of the rear side of the clamping block 14, the tops of the transverse plates are in sliding connection with the bottoms of the corresponding racks 20, gears 23 are fixedly sleeved on the outer sides of the first shaft 21 and the second shaft 22, the gears 23 are meshed with the corresponding racks 20, and the racks 20 and the gears 23 cannot be disengaged.

Example two

The following further improvements are made on the basis of the first embodiment:

in the utility model, in order to facilitate the communication of an upper connecting pipe 11, a lower connecting pipe 12, an air inlet pipe 7 and an air outlet pipe 8, the tops and the bottoms of a first adsorption tower 5 and a second adsorption tower 6 are hermetically communicated with communicating pipes 13, the interiors of two communicating pipes 13 positioned above are respectively provided with the upper connecting pipe 11, the upper connecting pipe 11 is hermetically communicated with the communicating pipes 13, the interiors of two communicating pipes 13 positioned below are respectively provided with the lower connecting pipe 12, the lower connecting pipe 12 is hermetically communicated with the communicating pipes 13, the tops of the two upper connecting pipes 11 are hermetically and threadedly connected with the same air outlet pipe 8, the bottoms of the two lower connecting pipes 12 are hermetically and threadedly connected with the same air inlet pipe 7, in order to facilitate subsequent maintenance and disassembly operations, the ends of the air inlet pipe 7 and the air outlet pipe 8 far away from each other extend to the left side and the right side of a box body 3 respectively, and the sides of the air inlet pipe 7 and the air outlet pipe 8 close to each other are hermetically communicated with a threaded joint pipe 9, the inside of screwed joint pipe 9 sets up the internal thread, and screwed joint pipe 9 all is provided with the external screw thread with its corresponding last connecting pipe 11 and the sealed threaded connection of lower connecting pipe 12 in screwed joint pipe 9, the outside of going up connecting pipe 11 and lower connecting pipe 12, and the inside sealed slidable mounting of communicating pipe 13 has the sleeve pipe, and the sleeve pipe rotates with its corresponding last connecting pipe 11 and the sealed connection of lower connecting pipe 12.

In the utility model, in order to improve the flexibility of the device body and facilitate the movement of the device body, two stop doors are hinged on the front side of the box body 3, the two stop doors completely cover the opening of the box body 3, a bearing plate 1 is fixedly arranged at the bottom of the box body 3, and brake wheels 2 are arranged at four corners of the bottom of the bearing plate 1.

In the utility model, when the first adsorption tower 5 and the second adsorption tower 6 are installed, firstly, the stop door is opened, the first adsorption tower 5 and the second adsorption tower 6 are positioned on the positioning plate 4, then the switch of the holding motor 10 is pressed down, the screw rod 17 rotates along with the output shaft of the holding motor 10, the rotation of the screw rod 17 can be converted into the upward movement of the drive plate 18 due to the threaded connection of the screw rod 17 and the drive plate 18, then the two cranks 19 are arranged to provide mutually approaching acting force for the two racks 20, the rack 20 is meshed with the gear 23, the transverse movement of the rack 20 can be converted into the arc motion of the first shaft 21 and the second shaft 22, the first adsorption tower 5 and the second adsorption tower 6 are clamped by using the two first hoops 15 and the two second hoops 16 on the first shaft 21 and the second shaft 22, and after the first adsorption tower 5 and the second adsorption tower 6 are clamped, the two upper connecting pipes 11 and the two lower connecting pipes 12 are respectively connected with the exhaust pipe 8 and the air inlet pipe 7 in a sealing threaded connection manner Compared with the conventional pressure swing adsorption nitrogen making device, the adsorption tower has two adsorption towers, can alternately complete adsorption and desorption, has high working efficiency, can be convenient to install and disassemble the adsorption towers, simplifies the steps of subsequent maintenance and reduces the maintenance cost.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making comprises a box body (3) with an opening arranged on the front side, and is characterized in that a positioning plate (4) is fixedly arranged on the inner wall of the rear side of the box body (3), two positioning plates (4) are arranged, a same first adsorption tower (5) and a same second adsorption tower (6) can be movably clamped on the two positioning plates (4) in a detachable mode, a clamping block (14) is fixedly arranged on the inner wall of the rear side of the box body (3), the clamping block (14) is arranged in a hollow mode, a same first shaft (21) and a same second shaft (22) are rotatably arranged on the inner wall of the top portion and the inner wall of the bottom portion of the clamping block (14), a first hoop (15) and a second hoop (16) are fixedly arranged on the first shaft (21) and the second shaft (22) respectively, and the number of the first hoop (15) and the second hoop (16) is two, the left sides of the two first hoops (15) and the right sides of the two second hoops (16) respectively extend to the left side and the right side of the clamping block (14), and the two first hoops (15) and the two second hoops (16) can be movably clamped with the first adsorption tower (5) and the second adsorption tower (6) in a detachable mode.

2. The pressure swing adsorption nitrogen generation device capable of replacing membrane separation nitrogen generation as claimed in claim 1, wherein a holding motor (10) is fixedly mounted at the top of the clamping block (14), the top of an output shaft of the holding motor (10) extends to the inside of the clamping block (14), a lead screw (17) is fixedly mounted at the bottom of the output shaft of the holding motor (10), a driving plate (18) is connected to the outer side of the lead screw (17) in a threaded manner, and the first shaft (21) and the second shaft (22) are in transmission connection with the driving plate (18).

3. The pressure swing adsorption nitrogen generation device capable of replacing membrane separation nitrogen generation as claimed in claim 2, wherein the front side of the driving plate (18) is rotatably provided with two cranks (19), racks (20) are movably mounted at the bottoms of the two cranks (19), gears (23) are fixedly sleeved on the outer sides of the first shaft (21) and the second shaft (22), and the gears (23) are meshed with the corresponding racks (20).

4. The pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making according to claim 1, wherein the top and the bottom of the first adsorption tower (5) and the second adsorption tower (6) are hermetically communicated with communicating pipes (13), the inside of each of the two communicating pipes (13) positioned above is provided with an upper connecting pipe (11), the inside of each of the two communicating pipes (13) positioned below is provided with a lower connecting pipe (12), the top of each of the two upper connecting pipes (11) is hermetically and threadedly connected with the same exhaust pipe (8), and the bottom of each of the two lower connecting pipes (12) is hermetically and threadedly connected with the same air inlet pipe (7).

5. The pressure swing adsorption nitrogen generation device capable of replacing membrane separation nitrogen generation according to claim 4, wherein one ends of the air inlet pipe (7) and the air outlet pipe (8) far away from each other extend to the left side and the right side of the box body (3) respectively, one sides of the air inlet pipe (7) and the air outlet pipe (8) close to each other are hermetically communicated with a threaded joint pipe (9), the threaded joint pipe (9) is hermetically and threadedly connected with an upper connecting pipe (11) and a lower connecting pipe (12) corresponding to the threaded joint pipe, a sleeve is slidably installed inside the communicating pipe (13) in a sealing mode, and the sleeve is hermetically and rotatably connected with the upper connecting pipe (11) and the lower connecting pipe (12) corresponding to the sleeve.

6. The pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making according to claim 1, wherein the front side of the box body (3) is hinged with two shutters, the two shutters completely cover the opening of the box body (3), the bottom of the box body (3) is fixedly provided with the bearing plate (1), and the four corners of the bottom of the bearing plate (1) are provided with brake wheels (2).