CN212799643U

CN212799643U - Nitrogen purification device

Info

Publication number: CN212799643U
Application number: CN202021182564.9U
Authority: CN
Inventors: 崔文朋; 林宏洪; 朱泽喜
Original assignee: Jiangsu Qingyue Gas Technology Co ltd
Current assignee: Jiangsu Qingyue Gas Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-26
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a nitrogen purification device, including desicator an and support, the support mounting is on desicator a lower extreme outer wall, be provided with the chassis on the support lower extreme outer wall, when using nitrogen purification device, the heating pipe heats the ordinary nitrogen gas that gets into, the trace oxygen in the ordinary nitrogen gas after being heated mixes with the carbon material and burns, continuous trace oxygen has participated in the burning, and it is combustion-supporting, the trace oxygen in the messenger's nitrogen gas reduces rapidly, thereby has clear away trace oxygen, make the purity of nitrogen gas improve rapidly, later the rethread connector gets into in the second reaction tank, continue to carry out the purification reaction, and the reactant after burning is stayed on the spacer screen, the accessible spacer screen that nitrogen gas can be free simultaneously, this nitrogen purification device simple structure, convenient operation, it is safe in utilization, can improve the purity of nitrogen gas very easily, because increased the second reaction tank, therefore, in operation, the nitrogen can be deoxidized repeatedly, and the deoxidizing efficiency is high.

Description

Nitrogen purification device

Technical Field

The utility model belongs to the technical field of the nitrogen gas purification is relevant, concretely relates to nitrogen gas purification device.

Background

Nitrogen purification refers to the physical or chemical removal of impurities from nitrogen. The nitrogen impurity removal is mainly used for removing oxygen in nitrogen in industry to improve the purity of the nitrogen, and the nitrogen is used for catalytic oxygen removal. The high-efficiency adsorbent and the high-efficiency filter remove impurity oxygen, water vapor, dust and the like in the nitrogen. Two groups are used alternately, the equipment can run continuously for a long time, two adsorption dryers are connected in parallel, one adsorption dryer works, and the other adsorption dryer can only carry out regeneration treatment. The work and the regeneration are mutually alternated to ensure the continuous operation. The dryer operates at ambient temperature. When the dryer is regenerated, the temperature is required to be raised to 350 ℃, and pure gas is used for washing and regeneration; the working process is as follows: raw material hydrogen enters a pipeline through a flowmeter and enters a deaerator together with raw material nitrogen, the raw material hydrogen and the raw material nitrogen are fully combined in a palladium catalyst, generated water vapor is carried away from the deaerator by a large amount of nitrogen and is gradually cooled through a cooler, the temperature of the water vapor is reduced to normal temperature through a refrigeration dryer, the water vapor finally enters a drying tower, the water in the nitrogen is physically adsorbed and removed by a 5A molecular sieve, and the purified nitrogen enters a user process point through a nitrogen outlet valve.

The prior nitrogen purification device has the following problems: at present, a carbon-adding combustion method is adopted for a nitrogen purification device to remove trace oxygen in nitrogen, and when carbon and oxygen are adopted to react to generate carbon dioxide, insufficient reaction is easily caused, and the concentration of generated nitrogen is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nitrogen gas purification device to it adopts the not high problem of nitrogen gas concentration that the carbonization combustion method easily caused the insufficient formation of reaction to propose present nitrogen gas purification device in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a nitrogen purification device comprises a dryer a and a support, wherein the support is installed on the outer wall of the lower end of the dryer a, the outer wall of the lower end of the support is provided with a bottom frame, a filter is arranged on the bottom frame on the right side of the dryer a, an operation box is arranged on the outer wall of the circumference of the front end of the filter, the dryer a is arranged on the right side of the filter, the dryer a and the dryer b are fixedly connected through a connecting pipe b, a deaerator is arranged on the outer wall of the circumference of the front end of the dryer a, an inlet pipe is arranged on the outer wall of the circumference of the deaerator, an outlet pipe is arranged on the deaerator on the right side of the inlet pipe, a connecting pipe a is arranged on the connecting pipe b on the right lower side of the outlet pipe, a tank cover is arranged on the deaerator, a deaerating tank is arranged, the heating pipe is arranged on the outer wall of the upper end of the separation net, a carbon material is arranged on the separation net outside the heating pipe, a condensation pipe inlet is formed in the outer wall of the circumference of the deaerating tank, a blow-off pipe with a collision head is arranged on the outer wall of the lower end of the deaerating tank, and the heating pipe is electrically connected with an external power supply.

Preferably, the dryer b and the chassis are fixedly connected through a bracket, and the lowest end of the outlet pipe is arranged on the connecting pipe b.

Preferably, the reaction tanks are provided with two reaction tanks, and a connecting port is arranged between the two reaction tanks.

Preferably, the connecting pipe a and the connecting pipe b are both provided with valves.

Preferably, all be provided with the flange on cover and the oxygen-eliminating jar, cover and oxygen-eliminating jar pass through nut fixed connection.

Preferably, the outer wall of the circumference of the lower end of the deaerating tank is provided with a condensing pipe outlet, and the deaerating tank outside the reaction tank is provided with a condensing pipe.

Compared with the prior nitrogen purification device technology, the utility model provides a nitrogen purification device possesses following beneficial effect:

the utility model discloses nitrogen purification device heats ordinary nitrogen gas through the heating pipe, then mix with the carbon material and burn, the oxygen content in the nitrogen gas has been reduced like this, the purity to nitrogen gas improves to some extent, before using this nitrogen purification device, earlier switch on the outside power with the heating pipe, let in the condensate in the condenser pipe import simultaneously, let in the ammonia on the import pipe again, the heating pipe heats the ordinary nitrogen gas that gets into, the trace oxygen in the ordinary nitrogen gas after being heated mixes with the carbon material, and burn immediately, continuous trace oxygen has participated in the burning, and it is combustion-supporting, the trace oxygen in messenger's nitrogen gas reduces rapidly, thereby has clear away trace oxygen, make the purity of nitrogen gas improve rapidly, later the rethread connector enters into second reaction tank, continue to carry out the purification reaction, and the reactant after the burning then stays on the screen, the business turn over that nitrogen gas can be free simultaneously separates the net, this nitrogen purification device simple structure, convenient operation, it is safe in utilization, can improve the purity of nitrogen gas very easily, owing to increased the second reaction tank, therefore in service, can carry out deoxidization repeatedly to nitrogen gas, the deoxidization efficiency is very high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic view of a front structure of a nitrogen purification device according to the present invention;

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

FIG. 3 is a schematic view of the profiling structure of the deaerator according to the present invention;

in the figure: 1. a dryer a; 2. a deaerator; 3. an inlet pipe; 4. a chassis; 5. an operation box; 6. a filter; 7. a dryer (b); 8. a connecting pipe a; 9. a connecting pipe b; 10. an outlet pipe; 11. a support; 12. an inlet of a condenser pipe; 13. a reaction tank; 14. carbon material; 15. heating a tube; 16. separating the net; 17. a blow-off pipe; 18. a connecting port; 19. a deaerating tank; 20. the can lid.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a nitrogen purification device comprises a dryer a1 and a support 11, wherein the support 11 is installed on the outer wall of the lower end of a dryer a1, the outer wall of the lower end of the support 11 is provided with a bottom frame 4, the bottom frame 4 on the right side of a dryer a1 is provided with a filter 6, the outer wall of the circumference of the front end of the filter 6 is provided with an operation box 5, the right side of the filter 6 is provided with a dryer a1, the dryer a1 and the dryer b7 are fixedly connected through a connecting pipe b9, the outer wall of the circumference of the front end of the dryer a1 is provided with a deaerator 2, the outer wall of the circumference of the deaerator 2 is provided with an inlet pipe 3, the deaerator 2 on the right side of the inlet pipe 3 is provided with an outlet pipe 10, the connecting pipe b9 on the right lower side of the outlet pipe 10 is provided with a connecting pipe a8, the deaerator 2 is provided with a cover 20, be provided with heating pipe 15 on separating 16 upper ends of nets outer wall, be provided with carbon material 14 on the outside separating 16 of heating pipe 15, be provided with condenser pipe import 12 on the 19 circumference outer walls of deoxidization jar, receive on the 19 lower extreme outer walls of deoxidization jar first blow off pipe 17, heating pipe 15 passes through external power source electric connection.

A nitrogen purification device comprises a dryer a1 and a support 11, a dryer b7 and a bottom frame 4 are fixedly connected through the support 11, the lowest end of an outlet pipe 10 is arranged on a connecting pipe b9, nitrogen is dried through the two dryers in this way, the reaction rate of the nitrogen is accelerated, two reaction tanks 13 are arranged, a connecting port 18 is arranged between the two reaction tanks 13, oxygen in the nitrogen can fully react with a carbon material 14, the purity of the nitrogen can be improved, valves are arranged on the connecting pipe a8 and the connecting pipe b9, gas inlet and outlet are controlled through various valves, flanges are arranged on a tank cover 20 and a deaerating tank 19, the tank cover 20 and the deaerating tank 19 are fixedly connected through nuts, the carbon material 14 can be conveniently replaced, the carbon material 14 can fully react with the oxygen, a condensing pipe outlet is arranged on the circumferential outer wall of the lower end of the deaerating tank 19, be provided with the condenser pipe on the outside oxygen-eliminating tank 19 of reaction tank 13, can reduce the surface temperature of oxygen-eliminating device 2 like this, be favorable to retrieving reaction temperature simultaneously, avoided extravagant.

The utility model discloses a theory of operation and use flow: the utility model discloses after installing, when installing this nitrogen purification device, install oxygen-eliminating device 2 earlier, can install heating pipe 15 in the upper end that separates net 16, then will separate net 16 and install in reaction tank 13, and reaction tank 13 has two, consequently all install in every reaction tank 13 and separate net 16 and heating pipe 15, put into separating net 16 with carbon material 14 again, surround the condenser pipe between reaction tank 13 and oxygen-eliminating tank 19, cover 20 the upper end at oxygen-eliminating tank 19 with cover 20 at last, make the import pipe 3 of cover 20 inside install in reaction tank 13, outlet pipe 10 also installs in reaction tank 13 simultaneously, import pipe 3, outlet pipe 10 closely laminates with reaction tank 13, later pass through on the nut mounting flange, install oxygen-eliminating device 2 on the outer wall of desicator a1 at last; before the nitrogen purification device works, a heating pipe 15 is firstly connected with an external power supply, meanwhile, condensate is led into a condenser pipe inlet 12, the heating pipe 15 is a metal pipe, a resistance wire is arranged in the metal pipe, the same as an electric furnace wire, the heating principle is that current generates heat through a resistor, electrons are accelerated in an electric field to obtain kinetic energy and have speed, then other particles (atoms, molecules and atomic groups) are collided to enable the other particles to obtain kinetic energy, the average kinetic energy is increased, the temperature is increased, ammonia gas is led into an inlet pipe 3, the heating pipe 15 heats the entering common nitrogen gas, trace oxygen in the heated common nitrogen gas is mixed with a carbon material 14 and is immediately combusted, continuous trace oxygen participates in combustion and supports combustion, the trace oxygen in the nitrogen gas is rapidly reduced, and therefore the trace oxygen is removed, and the purity of the nitrogen gas is rapidly improved, then enters the second reaction tank 13 through the connecting port 18 to continue the purification reaction, while the reactant after combustion remains on the screen 16, and nitrogen can freely enter and exit the screen 16, the working principle of the nitrogen purification device is as follows: under the action of carbon-supported catalyst, the residual oxygen in nitrogen gas and carbon provided by catalyst self-body produce reaction and remove oxygen in nitrogen gas, the residual moisture and carbon dioxide in the deoxygenated nitrogen gas are passed through cooler and drier and removed to make the dew point of nitrogen gas be about minus seventy deg.C, two dryers are provided, one dryer can be used for making adsorption drying, another dryer can be used for regenerating saturated water gas, and is prepared for next period of adsorption operation, the dried nitrogen gas is passed through filter 6 to remove dust, and the nitrogen gas with purity can be obtained.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A nitrogen gas purification apparatus comprising a dryer a (1) and a support (11), characterized in that: the dryer is characterized in that the support (11) is installed on the outer wall of the lower end of a dryer a (1), the outer wall of the lower end of the support (11) is provided with a bottom frame (4), a filter (6) is arranged on the bottom frame (4) on the right side of the dryer a (1), an operation box (5) is arranged on the outer wall of the circumference of the front end of the filter (6), the right side of the filter (6) is provided with the dryer a (1), the dryer a (1) and the dryer b (7) are fixedly connected through a connecting pipe b (9), a deaerator (2) is arranged on the outer wall of the circumference of the front end of the dryer a (1), an inlet pipe (3) is arranged on the outer wall of the circumference of the deaerator (2), an outlet pipe (10) is arranged on the deaerator (2) on the right side of the inlet pipe (3), a connecting pipe a (, be provided with cover (20) on oxygen-eliminating device (2), set up oxygen-eliminating tank (19) on cover (20) lower extreme outer wall, set up on oxygen-eliminating tank (19) upper end outer wall reaction tank (13), be provided with on the inner wall of reaction tank (13) and separate net (16), it is provided with heating pipe (15) on net (16) upper end outer wall to separate, heating pipe (15) outside is provided with carbon material (14) on separating net (16), be provided with condenser pipe import (12) on oxygen-eliminating tank (19) circumference outer wall, receive on oxygen-eliminating tank (19) lower extreme outer wall head of a crashing point blow off pipe (17), heating pipe (15) are through external power source electric connection.

2. A nitrogen purification apparatus as claimed in claim 1, wherein: the dryer b (7) is fixedly connected with the bottom frame (4) through a support (11), and the lowest end of the outlet pipe (10) is arranged on the connecting pipe b (9).

3. A nitrogen purification apparatus as claimed in claim 1, wherein: the reaction tanks (13) are provided with two reaction tanks, and a connecting port (18) is arranged between the two reaction tanks (13).

4. A nitrogen purification apparatus as claimed in claim 1, wherein: and valves are arranged on the connecting pipe a (8) and the connecting pipe b (9).

5. A nitrogen purification apparatus as claimed in claim 1, wherein: all be provided with the flange on cover (20) and oxygen-eliminating jar (19), cover (20) and oxygen-eliminating jar (19) pass through nut fixed connection.

6. A nitrogen purification apparatus as claimed in claim 1, wherein: be provided with the condenser pipe export on the circumference outer wall of oxygen-eliminating jar (19) lower extreme, be provided with the condenser pipe on the outside oxygen-eliminating jar (19) of reaction tank (13).