CN218620345U

CN218620345U - Heat accumulating type ammonia decomposition reactor

Info

Publication number: CN218620345U
Application number: CN202222991702.3U
Authority: CN
Inventors: 熊万奎; 王揽月; 熊倩倩
Original assignee: Anhui Juyuan Machinery Equipment Co ltd
Current assignee: Anhui Juyuan Machinery Equipment Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-14
Anticipated expiration: 2032-11-10

Abstract

The utility model provides a heat accumulating type ammonia decomposition reactor, which comprises a heat insulation box; the bottom of the inner cavity of the heat preservation box is fixedly connected with a decomposition tank, a heating assembly is arranged in the inner cavity of the heat preservation box and positioned outside the decomposition tank, and a catalytic assembly is arranged on the upper end face of the heat preservation box; the heating assembly comprises an air blower, an air blower is fixedly connected to one side of the outer surface of the insulation can, an air inlet pipe is fixedly connected to the air inlet end of the air blower, an exhaust pipe is fixedly connected to the air outlet end of the air blower, one end of the exhaust pipe penetrates through the insulation can and is fixedly connected with the insulation can, one end of the exhaust pipe is fixedly connected with a first circular ring, and heating pipes are fixedly connected to the lower end face of the first circular ring at equal intervals. The utility model discloses a heating element has realized that the decomposition tank carries out even heating, then has realized through the catalysis subassembly the utilization to preheating to and to the heating of catalyst, make things convenient for later stage decomposition ammonia, can also clear up the residue that the inside catalyst was placed to the catalysis simultaneously.

Description

Heat accumulating type ammonia decomposition reactor

Technical Field

The utility model relates to an ammonia decomposes technical field, concretely relates to heat accumulation formula ammonia decomposition reactor.

Background

When the existing ammonia is decomposed, firstly, liquid ammonia needs to be introduced into a decomposing furnace, after the liquid ammonia is introduced, refrigerant steam is adopted for heating, the temperature of the liquid ammonia is heated to 800-850 ℃, and finally, the ammonia is decomposed into hydrogen-nitrogen mixed gas under the action of a catalyst.

Because a single cold gas pipeline is used for heating a certain part of the decomposing furnace, the temperature of the part is high, and the temperatures of other parts are relatively low, so that the temperature of all parts in the decomposing furnace is not uniform.

In order to solve the problems, a furnace chamber is arranged in the furnace body, a furnace chamber is fixed in the furnace chamber, the ammonia decomposition furnace comprises an air inlet pipe and an air outlet pipe, the air inlet pipe penetrates through the top of the furnace body and is communicated with the furnace chamber, the air outlet pipe penetrates through the bottom of the furnace body and is communicated with the furnace chamber, a heat-conducting plate is arranged at the bottom of the furnace chamber and is combined with the chamber wall of the furnace chamber to form a combustion chamber, the ammonia decomposition furnace further comprises a fan and a cold gas pipe, the cold gas pipe penetrates through the bottom of the furnace body and extends into the combustion chamber, the fan is fixed on the top chamber wall of the furnace chamber, and the wind direction of the fan faces to the center of the heat-conducting plate. The utility model has the advantages of low processing cost and the like.

Above-mentioned prior art has adopted mutually supporting of two refrigerant pipelines and fan, though can eliminate decomposing furnace list position to a certain extent and be heated, during the practical application, has following problem:

because two refrigerant air pipes are positioned at the lower part of the furnace pipe and a round plate body is also arranged between the furnace pipes, when the refrigerant air pipes are combusted, the temperature at the lower part of the inner cavity of the furnace pipe is still higher than that at the upper part of the inner cavity of the furnace pipe, and the problem of non-uniformity of the temperature of the inner cavity of the furnace pipe is solved.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a heat accumulation formula ammonia decomposition reactor has solved the problem of mentioning in the background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a heat accumulating type ammonia decomposition reactor, which comprises a heat insulation box; the bottom of the inner cavity of the heat preservation box is fixedly connected with a decomposition tank, a heating assembly is arranged in the inner cavity of the heat preservation box and outside the decomposition tank, and a catalytic assembly is arranged on the upper end face of the heat preservation box; the heating assembly comprises an air blower, an air blower is fixedly connected to one side of the outer surface of the insulation can, an air inlet pipe is fixedly connected to the air inlet of the air blower, an exhaust pipe is fixedly connected to the air outlet end of the air blower, one end of the exhaust pipe penetrates through the insulation can and is fixedly connected with the insulation can, a first circular ring is fixedly connected to one end of the exhaust pipe, heating pipes are fixedly connected to the lower end face of the first circular ring at equal intervals, exhaust holes are formed in the outer surface of the heating pipes at equal intervals, and a second circular ring is fixedly connected to the lower end face of the heating pipes.

Furthermore, the upper end and the lower end of the inner cavity of the heat insulation box are respectively and fixedly connected with a first circular ring and a second circular ring, the first circular ring and the second circular ring are respectively installed at the two ends of the outer surface of the decomposition tank, and one end of the air inlet pipe is fixedly connected with an external heat source pipe.

Further, the catalysis subassembly includes the catalysis case, insulation can up end fixedly connected with catalysis case, catalysis incasement chamber and insulation can inner chamber intercommunication, catalysis incasement chamber middle part fixedly connected with urceolus, urceolus inner chamber middle part fixedly connected with inner tube, urceolus inner chamber just is located fixed connection and radiating fin between the surface of inner tube, radiating fin up end is provided with the jack, catalysis case one side fixedly connected with blast pipe, catalysis case up end is through the sealed lid of bolt fixedly connected with, the sealed up end fixedly connected with connecting pipe that covers, connecting pipe one end run through the insulation can and with decomposition tank up end fixed connection, the sealed up end fixedly connected with gas mixing pipe that covers, the valve is installed to the gas mixing pipe inner chamber.

Further, the catalysis subassembly includes spacing frame, catalysis case inner chamber upper portion fixedly connected with spacing frame, place the board on the spacing frame up end, place board inner chamber middle part fixedly connected with catalysis and place the pipe.

Furthermore, a liquid inlet pipe is fixedly connected to the upper end face of the decomposition tank, a liquid discharge pipe is fixedly connected to the lower end face of the decomposition tank, one end of the liquid inlet pipe and one end of the liquid discharge pipe respectively penetrate through the insulation can and are fixedly connected with the insulation can, and valves are respectively installed in inner cavities of the liquid inlet pipe and the liquid discharge pipe.

The utility model provides a heat accumulating type ammonia decomposition reactor. Compared with the prior art, the method has the following beneficial effects:

1. the air blower, the first ring, the heating pipe and the air exhaust holes in the heating pipe in the heating assembly realize the uniform distribution of heat on the outer surface of the decomposition tank, so that ammonia liquid or ammonia gas in the decomposition tank is uniformly heated.

2. Place the pipe through catalysis case, urceolus and inner tube and catalysis among the catalysis subassembly and realized carrying out make full use of to the inside heat of insulation can, introduce the temperature of insulation can in the catalysis case to place the pipe and heat the catalysis, make things convenient for the ammonia after the later stage heating to react with the catalyst.

3. Through sealed lid in the catalysis subassembly, can make things convenient for the later stage to place the pipe with the catalysis and take out from the catalysis incasement, take out the back, conveniently place the intraduct to the catalysis on the one hand and clear up, on the other hand, conveniently inwards add new catalyst.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 shows the overall structure of the present invention;

FIG. 2 is a schematic view of the sectional structure of the incubator of the present invention;

FIG. 3 is a schematic view of a heating assembly of the present invention;

figure 4 shows a schematic diagram of the catalytic assembly of the present invention;

FIG. 5 shows a schematic view of a partial cross-section of a catalytic assembly of the present invention;

shown in the figure: 1. a heat preservation box; 2. a decomposition tank; 3. a heating assembly; 31. a blower; 32. an air inlet pipe; 33. an exhaust duct; 34. a first circular ring; 35. heating a tube; 36. an air exhaust hole; 37. a second circular ring; 4. a catalytic component; 41. a catalyst box; 42. an outer cylinder; 43. an inner barrel; 44. a heat dissipating fin; 45. a jack; 46. an exhaust pipe; 47. a sealing cover; 48. a connecting pipe; 49. a limiting frame; 410. placing the plate; 411. a catalytic placement tube; 412. a mixed gas pipe; 5. a liquid inlet pipe; 6. and a liquid discharge pipe.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

In order to solve the technical problems in the background art, the following regenerative ammonia decomposition reactor is provided:

referring to fig. 1 to 5, the heat accumulating type ammonia decomposition reactor of the present invention includes a heat insulation box 1; the bottom of the inner cavity of the heat preservation box 1 is fixedly connected with a decomposition tank 2, a heating component 3 is arranged in the inner cavity of the heat preservation box 1 and positioned outside the decomposition tank 2, and a catalytic component 4 is arranged on the upper end face of the heat preservation box 1; heating element 3 includes air-blower 31, 1 surface one side fixedly connected with air-blower 31 of insulation can, 31 air inlet end fixedly connected with intake pipe 32 of air-blower, 31 air-out end fixedly connected with exhaust pipe 33 of air-blower, exhaust pipe 33 one end run through insulation can 1 and with insulation can 1 fixed connection, the first ring 34 of exhaust pipe 33 one end fixedly connected with, terminal surface equidistant fixedly connected with heating pipe 35 under the first ring 34, heating pipe 35 surface equidistant air exit 36 that is provided with, terminal surface fixedly connected with second ring 37 under the heating pipe 35. The upper end and the lower end of the inner cavity of the heat insulation box 1 are respectively fixedly connected with a first circular ring 34 and a second circular ring 37, the first circular ring 34 and the second circular ring 37 are respectively installed at the two ends of the outer surface of the decomposition tank 2, and one end of the air inlet pipe 32 is fixedly connected with an external heat source pipe. The upper end face of the decomposition tank 2 is fixedly connected with a liquid inlet pipe 5, the lower end face of the decomposition tank 2 is fixedly connected with a liquid discharge pipe 6, one end of the liquid inlet pipe 5 and one end of the liquid discharge pipe 6 respectively penetrate through the heat insulation box 1 and are fixedly connected with the heat insulation box 1, and valves are respectively arranged in the inner cavities of the liquid inlet pipe 5 and the inner cavities of the liquid discharge pipe 6.

The uniform heating of the decomposition tank 2 in the insulation can 1 is realized through the blower 31, the air inlet pipe 32, the exhaust pipe 33, the first ring 34, the heating pipe 35 and the second ring 37 in the heating component 3, so that the liquid ammonia in the decomposition tank 2 is fully heated.

Example two

As shown in fig. 1 to fig. 5, on the basis of the above embodiments, the present embodiment further provides the following:

the catalysis component 4 comprises a catalysis box 41, the upper end face of the heat preservation box 1 is fixedly connected with a catalysis box 41, the inner cavity of the catalysis box 41 is communicated with the inner cavity of the heat preservation box 1, the middle part of the inner cavity of the catalysis box 41 is fixedly connected with an outer cylinder 42, the middle part of the inner cavity of the outer cylinder 42 is fixedly connected with an inner cylinder 43, the inner cavity of the outer cylinder 42 is positioned between the outer surfaces of the inner cylinders 43 and fixedly connected with radiating fins 44, the upper end face of each radiating fin 44 is provided with a jack 45, one side of the catalysis box 41 is fixedly connected with an exhaust pipe 46, the upper end face of the catalysis box 41 is fixedly connected with a sealing cover 47 through a bolt, the upper end face of the sealing cover 47 is fixedly connected with a connecting pipe 48, one end of the connecting pipe 48 runs through the heat preservation box 1 and is fixedly connected with the upper end face of the decomposition tank 2, the upper end face of the sealing cover 47 is fixedly connected with a mixed gas pipe 412, and a valve is installed in the inner cavity of the mixed gas pipe 412. The catalysis assembly 4 comprises a limiting frame 49, the upper part of the inner cavity of the catalysis box 41 is fixedly connected with the limiting frame 49, a placing plate 410 is placed on the upper end face of the limiting frame 49, and a catalysis placing pipe 411 is fixedly connected to the middle part of the inner cavity of the placing plate 410.

Through the catalysis case 41 of catalysis subassembly 4 this kind, realized carrying out make full use of to the inside waste heat of insulation can 1, will utilize the waste heat to place the inside catalyst of pipe 411 to the catalysis and heat, make things convenient for ammonia and catalyst reaction, form the hydrogen nitrogen mist, after the reaction is accomplished, can will place the inside catalyst residue of pipe 411 to the catalysis through sealed lid and clear up, another part is placed new catalyst in the pipe 411 is placed to the catalysis.

The utility model discloses a theory of operation and use flow:

in the use state:

firstly, a catalyst is placed in a catalytic placing pipe 411, after the catalyst is placed, the catalytic placing pipe 411 and a placing plate 410 are integrally placed in a catalytic box 41, the placing plate 410 is positioned on a limiting frame 49, one end of the catalytic placing pipe 411 is inserted into an insertion hole 45, after the insertion, a sealing cover 47 is fixed through a bolt, after the fixation, the sealing of the catalytic box 41 is realized, after the sealing is finished, external liquid ammonia is discharged into a decomposition tank 2 through a liquid inlet pipe 5, after the liquid inlet pipe 5 is closed, the liquid inlet pipe 5 starts to start a heating assembly 3, after an air blower 31 in the heating assembly 3 is connected with an external power supply, the air blower 31 starts to work, when the air blower 31 works, the external heat source medium is firstly discharged into a first circular ring 34 through an air inlet pipe 32, the heat source medium is uniformly distributed into a heating pipe 35 through the first circular ring 34, finally the heat source medium is blown out from a hole 36 on the heating pipe 35, the external heat source medium is positioned on the outer surface of the decomposition tank 2, so that the whole ammonia gas is uniformly heated and the ammonia gas in the decomposition tank 2, and the ammonia gas is uniformly liquefied state.

When the decomposition tank 2 is heated, the heat medium is in the heat insulation box 1, the heat medium enters the catalytic tank 41 and transfers heat to the outer cylinder 42 and the inner cylinder 43, the catalytic placing pipe 411 is positioned between the outer cylinder 42 and the inner cylinder 43, the heat is transferred to the catalytic placing pipe 411 through the outer cylinder 42 and the inner cylinder 43, the catalyst is heated due to the catalyst placed in the catalytic placing pipe 411, after the catalyst is heated to a certain temperature, the valve in the connecting pipe 48 is opened, the ammonia gas in the decomposition tank 2 enters the catalytic tank 41 and reacts with the catalyst in the catalytic placing pipe 411, the reacted hydrogen and nitrogen mixture is discharged and collected through the mixed gas pipe 412, and the decomposition of the ammonia gas is completed.

After liquid ammonia decomposition in the decomposition tank 2 is accomplished, open the inside valve of fluid-discharge tube 6, discharge the inside liquid ammonia that does not decompose completely of decomposition tank 2, dismantle sealed lid 47, dismantle the back, place pipe 411 with the catalysis and take out, take out the back, place the catalyst residue in the pipe 411 to the catalysis and clear up, after the clearance, place new catalyst inside to convenient next time decomposes.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Heat accumulation formula ammonia decomposition reactor, its characterized in that: comprises a heat preservation box (1); the bottom of the inner cavity of the heat preservation box (1) is fixedly connected with a decomposition tank (2), a heating component (3) is arranged in the inner cavity of the heat preservation box (1) and positioned outside the decomposition tank (2), and a catalytic component (4) is arranged on the upper end face of the heat preservation box (1);

heating element (3) include air-blower (31), insulation can (1) surface one side fixedly connected with air-blower (31), air-blower (31) air inlet end fixedly connected with intake pipe (32), air-blower (31) air-out end fixedly connected with exhaust pipe (33), exhaust pipe (33) one end run through insulation can (1) and with insulation can (1) fixed connection, the first ring of exhaust pipe (33) one end fixedly connected with (34), terminal surface equidistant fixedly connected with heating pipe (35) under first ring (34), heating pipe (35) surface equidistant be provided with exhaust hole (36), terminal surface fixedly connected with second ring (37) under heating pipe (35).

2. A regenerative ammonia decomposition reactor according to claim 1, characterized in that: the heat preservation box is characterized in that the upper end and the lower end of an inner cavity of the heat preservation box (1) are fixedly connected with a first circular ring (34) and a second circular ring (37) respectively, the first circular ring (34) and the second circular ring (37) are installed at the two ends of the outer surface of the decomposition tank (2) respectively, and one end of the air inlet pipe (32) is fixedly connected with an external heat source pipe.

3. A regenerative ammonia decomposition reactor according to claim 1, characterized in that: catalysis subassembly (4) is including catalysis case (41), insulation can (1) up end fixedly connected with catalysis case (41), catalysis case (41) inner chamber and insulation can (1) inner chamber intercommunication, catalysis case (41) inner chamber middle part fixedly connected with urceolus (42), urceolus (42) inner chamber middle part fixedly connected with inner tube (43), urceolus (42) inner chamber just is located fixed connection and radiating fin (44) between the surface of inner tube (43), radiating fin (44) up end is provided with jack (45), catalysis case (41) one side fixedly connected with blast pipe (46), catalysis case (41) up end passes through the sealed lid of bolt fixedly connected with (47), sealed lid (47) up end fixedly connected with connecting pipe (48), connecting pipe (48) one end run through insulation can (1) and with decomposition tank (2) up end fixed connection, sealed lid (47) up end fixedly connected with gas mixing pipe (412), the valve is installed to gas mixing pipe (412) inner chamber.

4. A regenerative ammonia decomposition reactor according to claim 3, wherein: the catalytic assembly (4) comprises a limiting frame (49), the upper portion of the inner cavity of the catalytic box (41) is fixedly connected with the limiting frame (49), a placing plate (410) is placed on the upper end face of the limiting frame (49), and a catalytic placing pipe (411) is fixedly connected to the middle of the inner cavity of the placing plate (410).

5. The regenerative ammonia decomposition reactor of claim 4, wherein: the decomposition tank is characterized in that a liquid inlet pipe (5) is fixedly connected to the upper end face of the decomposition tank (2), a liquid discharge pipe (6) is fixedly connected to the lower end face of the decomposition tank (2), one ends of the liquid inlet pipe (5) and the liquid discharge pipe (6) respectively penetrate through the heat preservation box (1) and are fixedly connected with the heat preservation box (1), and valves are respectively installed in inner cavities of the liquid inlet pipe (5) and the liquid discharge pipe (6).