CN108910842B

CN108910842B - Nitrogen purification equipment

Info

Publication number: CN108910842B
Application number: CN201811055754.1A
Authority: CN
Inventors: 李可心; 李士华
Original assignee: Hangzhou Boda Purifying Equipment Co ltd
Current assignee: Hangzhou Boda Purifying Equipment Co ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2020-05-12
Anticipated expiration: 2038-09-11
Also published as: CN108910842A

Abstract

The invention belongs to the technical field of gas purification equipment, and mainly relates to nitrogen purification equipment, which comprises a purification tank, and an air inlet and an air outlet which are arranged on the purification tank, wherein a feed pipe and a discharge pipe are arranged on the purification tank, the feed pipe and the discharge pipe are connected with a reaction pipe inside the purification tank, the reaction pipe is communicated with the purification tank, the feed pipe, the discharge pipe and the reaction pipe have the same pipe diameter and are positioned on the same circle, catalysts are respectively arranged in the feed pipe, the discharge pipe and the reaction pipe, the catalysts used for purifying nitrogen are contained in the catalysts, and the catalysts can be used for sealing the feed pipe and the discharge pipe.

Description

Nitrogen purification equipment

Technical Field

The invention belongs to the technical field of gas purification equipment, and particularly relates to nitrogen purification equipment.

Background

The gas purification technology is to remove trace oxygen, water and other impurities in high-purity gas by means of adsorption, catalysis and the like under the normal temperature or temperature change state through an adsorbent and a catalyst. Often there are multiple in a certain kind of purified gas to be got rid of impurity, corresponding just provides corresponding demand to the adsorbent kind of purifier inside, often the inside chemical substances such as multiple catalyst that are equipped with of purifier, when this kind of chemical substance work reaches the state that saturation became invalid for a period of time, need operating personnel to carry out new catalyst promptly, the change of adsorbent, still need take out old catalyst, adsorbent simultaneously, and it is comparatively inconvenient when changing the catalyst at present, need open the purification jar when carrying out the change of catalyst, adsorbent more, it is loaded down with trivial details still leads to gas leakage easily to change.

Disclosure of Invention

Based on the problems mentioned in the background art, the invention provides nitrogen purification equipment, which is convenient for replacing a catalyst, does not need to open a purification tank when replacing the catalyst, does not influence the normal operation of nitrogen purification, and can avoid the leakage of nitrogen in the purification tank.

The technical scheme adopted by the invention is as follows:

the utility model provides a nitrogen gas purification equipment, includes the purification jar and installs air inlet and gas outlet on the purification jar, install inlet pipe and discharging pipe on the purification jar, inlet pipe and discharging pipe have a reaction tube in purification jar internal connection, the reaction tube communicates with the purification jar each other, the pipe diameter of inlet pipe, discharging pipe and reaction tube is the same, and is located same circle, all install the catalyst converter in inlet pipe, discharging pipe and the reaction tube, the splendid attire has the catalyst that is used for purification nitrogen gas in the catalyst converter, and the catalyst converter still can be used to seal inlet pipe and discharging pipe simultaneously.

On the basis of the technical scheme, the invention is further improved as follows:

further define, the catalyst converter includes holding pipe and rubber piston, rubber piston fixed mounting is at the both ends of holding the pipe, hold and have seted up a plurality of through-holes on the pipe. The catalyst filled in the containing pipe contacts with the gas in the purifying tank under the action of the through hole, which is beneficial to the normal reaction of the catalyst.

Further limit, the two ends of the piston are provided with chamfers, and the angles of the chamfers are 20-30 degrees. Under the effect of chamfer structure, when installing the catalyst converter in to the inlet tube, the piston can be better gets into in the inlet tube, and it is more convenient to use.

Further inject, it includes body and lower body to hold the pipe, the piston includes piston and lower piston, the seal groove has been seted up on piston and the body down, be equipped with on piston and the body of going up with seal groove assorted seal ring. Under the action of the sealing groove and the sealing washer, the upper piston and the lower piston are conveniently connected in a sealing mode.

Further inject, the cover is equipped with the seal cover on the catalyst converter, the seal cover includes the lantern ring and cover bag, the lantern ring is all installed at cover bag both ends, the lantern ring cover is established on the piston, cover bag cover is established on holding the pipe. Under the action of the bag, the catalyst can be sealed to avoid the reaction between the catalyst and air, so that a large amount of catalyst can be prepared in advance for use.

Further defined, a plurality of pull rings are integrally formed on the lantern ring. Under the effect of pull ring, conveniently make power when demolising the seal cover, and then be convenient for take off the seal cover.

Further limiting, a plurality of communicating grooves are axially formed in the tube wall of the reaction tube, and the distance between every two adjacent communicating grooves is equal. Under the effect of the communicating groove, the catalyst can be exposed in the purifying tank in a large area, the purifying efficiency is favorably improved, and meanwhile, the catalyst can be better limited by the reaction tube.

Further inject, the central angle of the circular arc that the catalyst converter is located is 90 degrees, the structure of inlet pipe and discharging pipe is the same, and inlet pipe and discharging pipe place circular arc central angle be 100 ~ 120 degrees, inlet pipe and discharging pipe contained angle are 91 ~ 95 degrees between the outside one end tip of purification jar. Such structural design, when installing new catalyst converter, no matter what kind of position is removed to the catalyst converter, all must have the piston to carry out the shutoff in inlet pipe and the discharging pipe to ensure the leakproofness of purification jar, prevented when changing the catalyst converter, gas leakage in the purification jar.

Further limiting, a T-shaped groove is formed in the piston at one end of the catalytic converter, and a T-shaped clamp is mounted on the piston at the other end of the catalytic converter. Such structural design, the cooperation of T type groove and T shape card through, when installing new catalyst converter, can be connected new catalyst converter and the catalyst converter in inlet pipe and the discharging tube, the catalyst converter that has reacted in the new catalyst converter or the discharging tube of avoiding changeing when removing drops.

Further inject, the equal spiro union of inlet pipe and discharging pipe in the outside one end tip of purification jar is installed and is sealed the lid. The feed pipe and the discharge pipe are sealed through the sealing cover, so that the sealing performance of the purification tank is further ensured.

The invention has the beneficial effects that:

1. the catalyst is convenient to replace, the purification tank does not need to be opened when the catalyst is replaced, the normal operation of nitrogen purification is not influenced, and the leakage of nitrogen in the purification tank can be avoided;

2. convenient to use, catalyst all packs into the catalyst converter in advance and keeps, when needs are changed catalyst in the catalyst converter, with the catalyst converter from the feed pipe in insert can, it is comparatively convenient to use.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of a first embodiment of a nitrogen purification apparatus according to the present invention;

FIG. 2 is a schematic sectional view of a nitrogen purification apparatus according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic diagram of a catalyst in an embodiment of a nitrogen purification apparatus according to the present invention;

FIG. 5 is a schematic structural diagram of a sealing sleeve in a first embodiment of the nitrogen purification apparatus of the present invention;

FIG. 6 is a schematic diagram of a catalyst in a second embodiment of a nitrogen purification apparatus according to the present invention;

the main element symbols are as follows:

the device comprises a purification tank 1, an air inlet 21, an air outlet 22, a feeding pipe 31, a discharging pipe 32, a reaction pipe 33, a catalytic converter 4, an upper pipe body 41, a lower pipe body 42, an upper piston 43, a lower piston 44, a sealing groove 45, a through hole 46, a T-shaped clamping groove 48, a lantern ring 51, a bagging 52 and a pull ring 53.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Example one

As shown in FIGS. 1 to 5, the nitrogen purification device of the present invention comprises a purification tank 1, and an air inlet 21 and an air outlet 22 installed on the purification tank 1, wherein a feed pipe 31 and a discharge pipe 32 are installed on the purification tank 1, the feed pipe 31 and the discharge pipe 32 are connected with a reaction pipe 33 inside the purification tank 1, the reaction pipe 33 is communicated with the purification tank 1, the feed pipe 31, the discharge pipe 32 and the reaction pipe 33 have the same pipe diameter and are located on the same circle, the feed pipe 31 and the discharge pipe 32 are both screwed with a sealing cover at one end of the outside of the purification tank 1, catalysts 4 are installed inside the feed pipe 31, the discharge pipe 32 and the reaction pipe 33, wherein a plurality of communication grooves are axially formed on the pipe wall of the reaction pipe 33, the distance between two adjacent communication grooves is equal, each catalyst 4 comprises a containing pipe and a rubber piston, the rubber pistons are fixedly installed at both ends of the containing pipe, the two ends of the piston are provided with chamfers, the chamfers have an angle of 20-30 degrees, the accommodating pipe comprises an upper pipe body 41 and a lower pipe body 42, the piston comprises an upper piston 43 and a lower piston 44, the lower piston 44 and the lower pipe body 42 are provided with sealing grooves 45, the upper piston 43 and the upper pipe body 41 are provided with sealing gaskets matched with the sealing grooves 45, the catalyst 4 is filled with a catalyst for purifying nitrogen, meanwhile, the catalyst 4 can also be used for sealing the feed pipe 31 and the discharge pipe 32, the central angle of the circular arc where the catalyst 4 is located is 90 degrees, the feed pipe 31 and the discharge pipe 32 have the same structure, the central angles of the circular arcs where the feed pipe 31 and the discharge pipe 32 are located are 100-120 degrees, the included angle between the feed pipe 31 and the discharge pipe 32 and the end part of one end part outside the purifying tank 1 is 91-95 degrees, the piston at one end of the catalyst is provided with a T-shaped, the catalytic converter 4 is sleeved with a sealing sleeve, the sealing sleeve comprises a sleeve ring 51 and a sleeve bag 52, the two ends of the sleeve bag 52 are provided with the sleeve rings 51, the sleeve ring 51 is sleeved on the piston, the sleeve ring 51 is integrally formed with a plurality of pull rings 53, and the sleeve bag 52 is covered on the accommodating pipe.

When in use, gas to be purified is injected into the purification tank 1 through the gas inlet 22, and the catalyst in the large catalyst 4 in the purification tank 1 treats the gas in the purification tank 1; when the catalyst 4 needs to be replaced, firstly, the sealing covers arranged on the feeding pipe 31 and the discharging pipe 32 are detached, then a new catalyst 4 is selected, after the sealing sleeves are detached, one end of the catalyst 4 is inserted into the feeding pipe 31 and extends along the feeding pipe 31 until the catalyst is completely inserted; during the reinsertion of a new catalytic converter 4, the catalytic converter 4 located in the purification tank 1 slides into the outlet pipe 32, and when a new catalytic converter 4 is reinserted, the catalytic converter 4 located in the outlet pipe 32 is pushed out and then replaced with a new catalytic converter.

Example two

As shown in fig. 1 to 6, the difference from the first embodiment is that when installing a new catalyst 4, two ends of the new catalyst 4 are respectively connected to the catalyst in the feeding pipe and the discharging pipe, so that the T-shaped clip 48 is buckled in the T-shaped groove 47, then the new catalyst 4 is pushed into the feeding pipe 31 by rotating the catalyst 4, the catalyst 4 originally located in the feeding pipe 31 is pushed into the reaction pipe 33, the discharging pipe 32 is pushed out of the discharging pipe 32 by the reacted catalyst 4, and finally the reacted catalyst 4 is removed and the sealing cover is covered.

The nitrogen purification apparatus provided by the present invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a nitrogen purification equipment, includes purification jar (1) and installs air inlet (21) and gas outlet (22) on purification jar (1), its characterized in that: a feed pipe (31) and a discharge pipe (32) are arranged on the purification tank (1), the feed pipe (31) and the discharge pipe (32) are connected with a reaction pipe (33) in the purification tank (1), the reaction pipe (33) is communicated with the purification tank (1), the pipe diameters of the feeding pipe (31), the discharging pipe (32) and the reaction pipe (33) are the same and are positioned on the same circle, the feed pipe (31), the discharge pipe (32) and the reaction pipe (33) are all internally provided with a catalyst (4), the catalyst (4) is internally filled with a catalyst for purifying nitrogen, meanwhile, the catalyst (4) can also be used for sealing the feed pipe (31) and the discharge pipe (32), the catalyst (4) comprises a containing pipe and rubber pistons, wherein the rubber pistons are fixedly arranged at two ends of the containing pipe, and a plurality of through holes (46) are formed in the containing pipe.

2. A nitrogen purification apparatus according to claim 1, characterized in that: and chamfers are arranged at two ends of the piston, and the angles of the chamfers are 20-30 degrees.

3. A nitrogen purification apparatus according to claim 2, characterized in that: the accommodating pipe comprises an upper pipe body (41) and a lower pipe body (42), the piston comprises an upper piston (43) and a lower piston (44), a sealing groove (45) is formed in the lower piston (44) and the lower pipe body (42), and sealing gaskets matched with the sealing groove (45) are arranged on the upper piston (43) and the upper pipe body (41).

4. A nitrogen purification apparatus according to claim 3, characterized in that: the catalytic converter is characterized in that a sealing sleeve is sleeved on the catalytic converter (4), the sealing sleeve comprises a sleeve ring (51) and a sleeve bag (52), the sleeve ring (51) is installed at two ends of the sleeve bag (52), the piston is sleeved with the sleeve ring (51), and the sleeve bag (52) is covered on the accommodating pipe.

5. A nitrogen purification apparatus according to claim 4, wherein: the lantern ring (51) is integrally formed with a plurality of pull rings (53).

6. A nitrogen purification apparatus according to claim 5, wherein: the pipe wall of the reaction pipe (33) is axially provided with a plurality of communicating grooves, and the distance between every two adjacent communicating grooves is equal.

7. A nitrogen purification apparatus according to claim 6, wherein: the central angle of catalyst converter (4) place circular arc is 90 degrees, the structure of inlet pipe (31) and discharging pipe (32) is the same, and inlet pipe (31) and discharging pipe (32) place circular arc central angle be 100 ~ 120 degrees, inlet pipe (31) and discharging pipe (32) are 91 ~ 95 degrees between the outside one end tip of purification jar (1) contained angle.

8. A nitrogen purification apparatus according to claim 2, characterized in that: a T-shaped groove (47) is formed in the piston at one end of the catalytic converter, and a T-shaped clamp (48) is mounted on the piston at the other end of the catalytic converter.