CN115196593A

CN115196593A - Hydrogen production plant

Info

Publication number: CN115196593A
Application number: CN202210908041.5A
Authority: CN
Inventors: 杨伟涛; 马永峰; 黄振宇; 梁万广
Original assignee: Zhongke Hongye Guangdong Hydrogen Energy Technology Co ltd
Current assignee: Zhongke Hongye Guangdong Hydrogen Energy Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-10-18
Anticipated expiration: 2042-07-29
Also published as: CN115196593B

Abstract

The application belongs to the technical field of hydrogen production, and provides hydrogen production equipment which comprises a reaction body, wherein a reaction cavity for high-temperature chemical reaction is formed in the reaction body; the heat exchanger is internally provided with a heat supply channel for circulating high-temperature tail gas, two ends of the heat supply channel are respectively provided with an air inlet and an air outlet, and the air inlet is communicated with the reaction cavity; a heating cavity is formed in the heat exchanger, the heating cavity is arranged on the periphery of the heat supply channel, a feed inlet and a discharge outlet are formed in the heat exchanger, and the feed inlet and the discharge outlet are communicated with the heating cavity; and one end of the first feeding pipe is connected with one end, far away from the heat exchanger, of the discharge port, and the other end of the first feeding pipe is connected with the reaction body. The application provides a hydrogen manufacturing equipment can be when adopting methanol-water hydrogen manufacturing, thereby the chemical reaction efficiency in the reaction chamber is improved to the methanol-water that becomes gasification state with the methanol-water of atomizing state under the normal atmospheric temperature.

Description

Hydrogen production plant

Technical Field

The application belongs to the field of hydrogen production, and particularly relates to hydrogen production equipment.

Background

With the popularization and development of new energy systems in China, the development of hydrogen fuel cells is faster and faster. Wherein the technology of producing hydrogen from methanol is also continuously developed. The chemical reaction of methanol with water can produce hydrogen gas for fuel cell, and in the process, the reactant is the core device of the whole chemical reaction.

The chemical reaction of the hydrogen production by reforming methanol is mainly to change methanol water into an atomized state under high pressure or become gaseous methanol water through high-temperature heating, and the methanol water can generate hydrogen and generate a large amount of heat under the catalytic action of a catalyst.

Disclosure of Invention

An object of the embodiment of this application is to provide a hydrogen production equipment to solve the hydrogen production equipment among the prior art when adopting methanol-water hydrogen manufacturing, the chemical reaction inefficiency of the methanol-water of atomizing state in the reaction chamber under the normal atmospheric temperature.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a heat exchanger including: a reaction body in which a reaction chamber for generating a high temperature chemical reaction is formed; the heat exchanger is internally provided with a heat supply channel for circulating high-temperature tail gas, the two ends of the heat supply channel of the heat exchanger are respectively provided with an air inlet and an air outlet, and the air inlet is communicated with the reaction cavity; a heating cavity for supplying heat to the material to be heated is formed in the heat exchanger, the heating cavity is arranged on the periphery of the heat supply channel, a feed inlet and a discharge outlet are formed in the heat exchanger, and the feed inlet and the discharge outlet are communicated with the heating cavity; and one end of the first feeding pipe is connected with one end, far away from the heat exchanger, of the discharge port, and the other end of the first feeding pipe is connected with the reaction body.

The application provides a heating device's beneficial effect lies in: compared with the prior art, the hydrogen manufacturing equipment of this application, during the use, fog state or liquid methanol-water enter into the heating chamber from the feed inlet, high temperature tail gas in the reaction chamber gets into the heat supply passageway through the air inlet, and discharge through the gas outlet, because the heating chamber sets up the periphery side at heat supply passageway, thereby heat in the high temperature gas of heat supply passageway of flowing through can transmit to enclosing and establish on the inner wall in heating chamber, with fog state or liquid methanol-water heating in the heating chamber, make methanol-water gasification, methanol-water after the gasification is in proper order through the bin outlet, first inlet pipe gets into the reaction intracavity, and take place chemical reaction, through setting up heat exchanger heating methanol-water, make methanol-water with gaseous form entering reaction intracavity, thereby be favorable to improving methanol-water chemical reaction's in the reaction chamber efficiency.

In one embodiment, a heat conductor for assisting in absorbing heat of the high-temperature exhaust gas is arranged in the heat supply channel, and the heat conductor is connected with the inner wall surface of the heat supply channel.

In one embodiment, the length extension direction of the heat conductor is consistent with the length extension direction of the heat supply channel.

In one embodiment, the number of the heat conducting bodies is multiple, and the multiple heat conducting bodies are distributed at equal intervals along the circumferential direction of the heat supply channel.

In one embodiment, the feeding hole is provided with a first connecting column, the first connecting column is used for assisting the feeding hole to be communicated with an external pipeline, and the discharging hole is provided with a second connecting column, and the second connecting column is connected with the first feeding pipe.

In one embodiment, the device further comprises a supply assembly for supplying chemical reaction materials to the reaction chamber, and the supply assembly is connected with the feed inlet.

In one embodiment, the feed assembly comprises a pump body and a conveying device, and the conveying device is respectively connected with the pump body and the feed inlet.

In one embodiment, the pump further comprises a mounting bracket, and the pump body is mounted on the mounting bracket.

In one embodiment, the conveying device comprises a first conveying pipe, a second feeding pipe and a change-over switch, the change-over switch is provided with a liquid inlet, a first liquid discharge port and a second liquid discharge port, two ends of the first conveying pipe are respectively connected with the pump body and the liquid inlet, two ends of the second conveying pipe are respectively connected with the first liquid inlet and the feed inlet, and two ends of the second feeding pipe are respectively connected with the second liquid discharge port and the reaction body.

In one embodiment, the change-over switch is provided with a hydraulic sensor for detecting the pressure of the internal liquid.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of a hydrogen plant provided in an embodiment of the present application;

FIG. 2 is a schematic perspective view of the heat exchanger shown in FIG. 1;

FIG. 3 is a cross-sectional structural view of the heat exchanger shown in FIG. 2;

FIG. 4 is an assembled perspective view of the heat exchanger, first feed tube, feed assembly, and mounting bracket of FIG. 1.

Wherein, in the figures, the various reference numbers:

10. a reactant;

20. a heat exchanger; 21. a heat supply channel; 22. an air outlet; 23. an air inlet; 24. a heating chamber; 25. a heat conductor; 26. a first connecting column; 27. a second connecting column;

30. a first feed tube;

40. a pump body; 41. mounting a bracket;

50. a conveying device; 51. a first delivery pipe; 52. a second delivery pipe; 53. a second feed pipe; 54. a transfer switch; 541. a first switch body; 542. a second switch body; 543. and a hydraulic pressure sensor.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1-4 together, a hydrogen plant according to an embodiment of the present application will now be described. The hydrogen plant includes a reactant 10, a heat exchanger 20, and a first feed line 30.

A reaction chamber for generating a high temperature chemical reaction is formed in the reaction body 10; a heat supply channel 21 for circulating high-temperature tail gas is formed in the heat exchanger 20, an air inlet 23 and an air outlet 22 are respectively arranged at two ends of the heat supply channel 21 of the heat exchanger 20, and the air inlet 23 is communicated with the reaction cavity; a heating cavity 24 for supplying heat to the material to be heated is formed in the heat exchanger 20, the heating cavity 24 is arranged on the periphery of the heat supply channel 21, a feed inlet and a discharge outlet are formed in the heat exchanger 20, and the feed inlet and the discharge outlet are both communicated with the heating cavity 24; the first feeding pipe 30 is connected to the discharge port at one end far from the heat exchanger 20 and connected to the reaction body 10 at the other end.

For example, as shown in fig. 1, a reaction chamber for generating a chemical reaction is formed in the reaction body 10, a catalyst capable of generating a catalytic reaction with methanol water is disposed in the reaction chamber, wherein the specific chemical reaction is to generate a chemical reaction of methanol water in a gasified or atomized state under the catalytic action of the catalyst to generate high-temperature hydrogen, water and a small amount of carbon monoxide, a heat supply channel 21 communicated with the reaction chamber is formed in the heat exchanger 20, the heat exchanger 20 is provided with an air inlet 23 and an air outlet 22 at two ends of the heat supply channel 21, respectively, the air inlet 23 is communicated with the reaction chamber, the high-temperature gas generated in the reaction chamber enters the heat supply channel 21 from the air inlet 23 and is then discharged from the air outlet 22, during which the high-temperature gas can transfer heat to the heat exchanger 20 by means of heat transfer, and a heating cavity 24 for supplying heat to the methanol water is formed in the heat exchanger 20, wherein the heating cavity 24 is in an annular structure, the heating cavity 24 surrounds the outer peripheral side of the heat supply channel 21, the heat exchanger 20 is further provided with a feed inlet and a discharge outlet, the feed inlet and the discharge outlet are both ends of the reaction body 30 are respectively connected with the discharge outlet of the reaction chamber 10, thereby generating the reaction water.

The application provides a hydrogen production equipment, compared with the prior art, the hydrogen production equipment of this application is through being formed with heat supply channel 21 in heat exchanger 20, heat supply channel 21's air inlet 23 is connected with reactant 10, at first directly discharge methanol-water with the atomizing state in the reaction chamber that is equipped with the catalyst through high pressure, the methanol-water of atomizing state and catalyst take place catalytic reaction and generate a large amount of high temperature hydrogen and carbon monoxide gas, then, when high temperature tail gas in the reaction chamber discharges through heat supply channel 21, heat in the high temperature gas can transmit to heat exchanger 20 in, and simultaneously, still be formed with heating chamber 24 in heat exchanger 20, heating chamber 24 sets up the periphery side at heat supply channel 21, atomizing state or liquid methanol-water can enter into heating chamber 24 from the feed inlet, then transmit the reaction intracavity from the bin outlet through first inlet pipe 30 and take place chemical reaction, in this in-process, the heat of high temperature tail gas can transmit to the methanol-water in heating chamber 24, methanol-water can discharge into the reaction chamber from the bin outlet with gasification state after being heated, thereby improve methanol-water's in reaction chamber's efficiency.

In an embodiment of the present application, referring to fig. 2 and fig. 3, a heat conductor 25 for assisting in absorbing heat of the high-temperature exhaust gas is disposed in the heat supply channel 21, and the heat conductor 25 is connected to an inner wall surface of the heat supply channel 21.

Specifically, one side of the heat conductor 25 is connected with the inner wall surface of the heat supply channel 21, meanwhile, the heat conductor 25 and the heat exchanger 20 are both made of heat conduction materials, in the process that high-temperature gas in the reaction chamber passes through the heat supply channel 21, the temperature can be transferred to the heat exchanger 20 by contacting with the inner wall surface of the heat supply channel 21, the temperature can be transferred to the heat conductor 25 by contacting with the heat conductor 25, then the temperature in the heat conductor 25 is transferred to the heat exchanger 20 by contacting with the heat exchanger 20, and the heat transfer efficiency between the high-temperature tail gas and the heat exchanger 20 can be improved by arranging the heat conductor 25 in the heat supply channel 21.

In one embodiment of the present application, referring to fig. 3, the length of the heat conductor 25 is the same as the length of the heat supply channel 21.

Specifically, the high-temperature gas generated in the reaction chamber flows along the extending direction of the heat supply passage 21, and by setting the extending direction of the heat conductor 25 to be the same as the extending direction of the heat supply passage 21, the heat of the high-temperature gas can be transferred into the heat conductor 25 without affecting the flow speed of the high-temperature gas in the heat supply passage 21.

In an embodiment of the present application, referring to fig. 2 and fig. 3, the number of the heat conductors 25 is plural, and the plural heat conductors 25 are equidistantly spaced along the circumferential direction of the heat supply passage 21.

Specifically, different numbers of heat conductors 25 may be provided according to actual conditions, wherein the larger the number of the heat conductors 25 is, the larger the contact area between the high-temperature exhaust gas and the heat conductors 25 is, so as to increase the heat transfer efficiency between the high-temperature exhaust gas and the heat conductors 25, and by circumferentially and equidistantly distributing the plurality of heat conductors 25 in the heat supply channel 21, the gas circulation speed in the heat supply channel 21 is the same, and the high-temperature exhaust gas stably passes through the heat supply channel 21, so as to avoid causing temperature unevenness of the heat exchanger 20.

In an embodiment of the present application, referring to fig. 2 and fig. 3, a first connection column 26 is provided at the feeding port, the first connection column 26 is used for connecting the auxiliary feeding port with an external pipeline, a second connection column 27 is provided at the discharging port, and an end of the second connection column 27 far away from the heat exchanger 20 is connected to a first feeding pipe 30.

Specifically, first spliced pole 26 is the looped pipeline with second spliced pole 27, first spliced pole 26 can assist the pipeline intercommunication of feed inlet and outside, outside pipeline is direct and first spliced pole 26 sealing connection, can realize outside pipeline and heating chamber 24 conducting connection, outside methanol-water of treating the heating can enter into heating chamber 24 through first spliced pole 26, first inlet pipe 30 and second spliced pole 27 sealing connection, the methanol-water of heating completion can transmit the reaction chamber through first inlet pipe 30 in the heating chamber 24.

In one embodiment of the present application, referring to fig. 1 and 4, a supply assembly for supplying chemical reactant to the reaction chamber is further included, and the supply assembly is connected to an end of the feed inlet remote from the heat exchanger 20.

Specifically, the required methanol-water of reforming hydrogen production chemical reaction is stored in the feed assembly, and one end through keeping away from heat exchanger 20 with feed assembly and feed inlet is connected for the methanol-water that treats heating in the feed assembly can enter into heating chamber 24 and heat, thereby enters into the chemical reaction that takes place reforming hydrogen production in the reaction chamber with gasification state.

In one embodiment of the present application, referring to fig. 1 and 4, the feed assembly includes a pump body 40 and a delivery device 50, the delivery device 50 is connected to the pump body 40 and the feed inlet, respectively, and the pump body 40 can pump external methanol water from the feed inlet into the heating chamber 24.

Specifically, the feeding assembly is still including the holding vessel that is used for storing the methanol-water, and pump body 40 is connected with holding vessel and conveyor 50 respectively, and pump body 40 can be through pumping into gas in the holding vessel to make liquid methanol-water in the holding vessel discharge with the hydraulic pressure state of settlement, thereby improve the velocity of flow of methanol-water in transmission process, can also make methanol-water discharge to the reaction chamber with the atomizing state simultaneously, so that the chemical reaction of reforming hydrogen production takes place for the methanol-water of atomizing state in the reaction chamber.

In an embodiment of the present application, please refer to fig. 1 and fig. 4 together, the conveying device 50 includes a first conveying pipe 51, a second conveying pipe 52, a second feeding pipe 53 and a switch 54, the switch 54 includes a body, a first switch body 541 and a second switch body 542, the body is provided with a liquid inlet, a first liquid outlet and a second liquid outlet, the first switch body 541 and the second switch body 542 are respectively used for controlling the first liquid outlet and the second liquid outlet, two ends of the first conveying pipe 51 are respectively connected to the pump body 40 and the liquid inlet, two ends of the second conveying pipe 52 are respectively connected to the first liquid inlet and the feeding port, and two ends of the second feeding pipe 53 are respectively connected to the second liquid outlet and the reaction body 10.

Specifically, the transfer switch 54 is mainly used for controlling a transmission path of methanol water, in this embodiment, when the whole hydrogen production apparatus is just started, since the reaction chamber is at a normal temperature state at this time, the hydrogen production apparatus is cold-started at this time, the first switch body 541 is closed, the second switch body 542 is opened, at this time, the methanol water in the storage tank is discharged from the second liquid discharge port, and is discharged into the reaction chamber provided with the catalyst in an atomized state through the second feed pipe 53, the methanol water in the atomized state is subjected to a chemical reaction in the reaction chamber to generate hydrogen and water, and simultaneously generates a large amount of heat, wherein the high-temperature exhaust gas passes through the heat supply passage 21 of the heat exchanger 20, then the first switch body 541 is opened, the methanol water in the storage tank is discharged from the first liquid discharge port, then the methanol water passes through the second feed pipe 52 to enter the heating chamber 24, after the methanol water is heated by the heating chamber 24, the methanol water enters the reaction chamber in a gasified state through the first feed pipe 30 to perform a chemical reaction, at this time, the temperature in the whole reaction chamber has reached a normal working temperature, the second switch body can be closed, the exhaust gas in the second switch body 542 is heated, and the chemical reaction can be stably reacted, so that the high-temperature of the hydrogen production apparatus, and the high-efficiency hydrogen production apparatus can be stably formed.

In an embodiment of the present application, referring to fig. 1 and fig. 4, the switch 54 is provided with a hydraulic pressure sensor 543 for detecting the internal hydraulic pressure thereof.

Specifically, the hydraulic sensor 543 is arranged on the switch 54, so that the worker can clearly observe the hydraulic value of the liquid methanol water output from the feeding assembly, and the worker can adjust the parameter of the pump body 40 to change the hydraulic value of the methanol water output from the feeding assembly to the reaction chamber.

In one embodiment of the present application, referring to fig. 1 and 4, a mounting bracket 41 is further included, and the pump body 40 is mounted on the mounting bracket 41.

Specifically, the mounting bracket 41 is arranged in the hydrogen production equipment, so that the pump body 40 can be stably fixed in the hydrogen production equipment, the pump body 40 is prevented from being displaced in the working process, the joint of the pump body 40 and the first conveying pipe 51 is prevented from being broken, and accidents are avoided.

The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented merely for purposes of illustration and description of the principles of the invention and is not intended to limit the scope of the invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.

Claims

1. A hydrogen production apparatus, comprising:

a reaction body in which a reaction chamber for generating a high temperature chemical reaction is formed;

the heat exchanger is internally provided with a heat supply channel for circulating high-temperature tail gas, the two ends of the heat supply channel for heat exchange are respectively provided with an air inlet and an air outlet, and the air inlet is communicated with the reaction cavity; a heating cavity for supplying heat to the material to be heated is formed in the heat exchanger, the heating cavity is arranged on the periphery of the heat supply channel, a feed inlet and a discharge outlet are formed in the heat exchanger, and the feed inlet and the discharge outlet are communicated with the heating cavity;

and one end of the first feeding pipe is connected with one end, far away from the heat exchanger, of the discharge port, and the other end of the first feeding pipe is connected with the reaction body.

2. The hydrogen plant as claimed in claim 1, characterized in that: and a heat conductor used for assisting in absorbing heat of the high-temperature tail gas is arranged in the heat supply channel, and the heat conductor is connected with the inner wall surface of the heat supply channel.

3. The hydrogen plant as claimed in claim 2, characterized in that: the length extending direction of the heat conductor is consistent with that of the heat supply channel.

4. The hydrogen plant as claimed in claim 2, characterized in that: the heat conductors are distributed at equal intervals along the circumferential direction of the heat supply channel.

5. The hydrogen plant as claimed in claim 1, characterized in that: the feed inlet department is equipped with first spliced pole, first spliced pole is used for supplementary feed inlet and outside pipeline intercommunication, discharge feed department is equipped with the second spliced pole, the second spliced pole with first inlet pipe is connected.

6. The hydrogen plant as claimed in claim 1, characterized in that: the reaction chamber is provided with a feeding hole, and the feeding hole is connected with a feeding component.

7. The hydrogen plant as claimed in claim 6, characterized in that: the feeding assembly comprises a pump body and a conveying device, and the conveying device is respectively connected with the pump body and the feeding hole.

8. The hydrogen plant as claimed in claim 7, characterized in that: the pump body is arranged on the mounting bracket.

9. The hydrogen plant as claimed in claim 7, characterized in that: conveyor is including first conveyer pipe, second inlet pipe and change over switch, change over switch is last to be equipped with inlet, first leakage fluid dram and second leakage fluid dram, first conveyer pipe both ends respectively with the pump body with the inlet is connected, second conveyer pipe both ends respectively with first inlet with the feed inlet is connected, second inlet pipe both ends respectively with the second leakage fluid dram with the reaction body coupling.

10. The hydrogen plant as claimed in claim 9, characterized in that: and the change-over switch is provided with a hydraulic sensor for detecting the pressure of the liquid inside the change-over switch.