Pressure swing adsorption equipment for producing hydrogen from natural gas

Abstract

The utility model discloses pressure swing adsorption equipment for producing hydrogen from natural gas, relates to the technical field of pressure swing adsorption equipment structures, and aims to solve the problems that the conventional pressure swing adsorption equipment for producing hydrogen from natural gas is complicated, so that the using effect of the pressure swing adsorption equipment for producing hydrogen from natural gas is poor. A first adsorption device is installed above the stable base, second adsorption devices are installed on the periphery of the outer portion of the first adsorption device, a first communicating pipe is installed on one side of the lower end of the first adsorption device, a first control valve is installed at one end of the first communicating pipe, and a first connecting pipe is installed at one end of the first control valve. A first pneumatic valve is installed at one end of the first connecting pipe, an air inlet pipe is installed on one side of the first pneumatic valve, a second communicating pipe is arranged at the lower end of the second adsorption device, a mounting frame is installed on one side of the upper portion of the stable base, and a fixing frame is installed on one side of the upper portion of the mounting frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure swing adsorption equipment structure technical field, concretely to a kind of pressure swing adsorption equipment of natural gas hydrogen production. BACKGROUND

[0002] Natural gas hydrogen production is made by natural gas steam conversion, and is composed of two parts of gas pressure swing adsorption hydrogen purification, and after compression and desulfurization, natural gas is mixed with water vapor, and under the action of nickel catalyst, natural gas is converted into hydrogen, carbon monoxide and carbon dioxide at 750-850 ℃, carbon monoxide can be converted into hydrogen by shift conversion, and becomes shift gas, then, the conversion gas or shift gas is subjected to pressure swing adsorption process to obtain high-purity hydrogen, and the pressure swing adsorption equipment is a new type of gas separation technology, which has the following advantages: high product purity; it can generally work at room temperature and low pressure, and the bed does not need to be heated during regeneration, so the product purity is high; the equipment is simple, and the operation and maintenance are simple; continuous circulation operation can completely achieve automation.

[0003] According to the search, the authorized announcement No. CN210674699U discloses a pressure swing adsorption equipment for natural gas hydrogen production, which comprises a seat plate, an adsorption cylinder installed on the seat plate, an exhaust hole arranged on the upper side of the adsorption cylinder, an exhaust pipe connected to the port of the exhaust hole, an air inlet hole arranged on the lower side of the adsorption cylinder, an air valve connected to the port of the air inlet hole, an air pump connected to the exhaust port of the air valve and installed on the seat plate, and an exhaust pipe connected to the exhaust port of the air pump. The upper end of the adsorption cylinder is provided with an air inlet hole, and one port of the air inlet hole is provided with an air inlet pipe. During the air inlet process, carbon monoxide in the mixed gas can be adsorbed initially, and hydrogen can be discharged from the flow hole into the air inlet pipe. The hydrogen discharged from the air inlet pipe can enter the zeolite molecular sieve filled in the adsorption cylinder, and further adsorb carbon monoxide in the hydrogen. During the process, carbon monoxide in the mixed gas is adsorbed during the air inlet and exhaust processes, and the adsorption effect is further improved.

[0004] However, the existing pressure swing adsorption equipment for natural gas hydrogen production is complex, which affects the use effect of the pressure swing adsorption equipment for natural gas hydrogen production, and therefore, there is an urgent need for a pressure swing adsorption equipment for natural gas hydrogen production to solve these problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a pressure swing adsorption equipment for natural gas hydrogen production to solve the problem of the existing pressure swing adsorption equipment for natural gas hydrogen production being complex, which affects the use effect of the pressure swing adsorption equipment for natural gas hydrogen production.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a natural gas hydrogen production pressure swing adsorption equipment, including stable base, the upper portion of stable base is installed with adsorption device no.

[0007] Preferably, one side of the adsorption device no. 1 is provided with a connecting rod, and one side of the connecting rod is provided with a protective baffle.

[0008] Preferably, one end of the communication pipe no. 2 is provided with a communication pipe no. 3, and one end of the communication pipe no. 3 is communicated with the connecting pipe no. 1.

[0009] Preferably, one end of the communication pipe no. 2 is provided with a communication pipe no. 3, and one end of the communication pipe no. 3 is communicated with the connecting pipe no. 1.

[0010] Preferably, the lower end of the mounting frame is welded with the stable base, one side of the inside of the mounting frame is provided with a mounting plate, and the mounting plate is welded with the mounting frame.

[0011] Preferably, one side of the mounting plate is provided with a limit claw, and the limit claw is correspondingly arranged with the pressurizing pipe.

[0012] Preferably, one end of the adsorption device no. 2 is provided with a connecting seat, one side of the connecting seat is provided with an air outlet pipe, the air outlet pipe is provided with a plurality of air outlet pipes, and one side of the air outlet pipe is provided with an exhaust pipe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The pressure swing adsorption equipment for hydrogen production of natural gas can filter the pressurized air through the installed filter device, avoid the pressurized air containing impurities, thereby causing the adsorption device one and the adsorption device two to be blocked, thereby affecting the use effect of the adsorption device one and the adsorption device two, thereby affecting the effect of the hydrogen production of natural gas, and the adsorption device two is provided with the connecting seat at one end, so that the gas outlet pipe can be installed, the prepared hydrogen is discharged and collected through the gas outlet pipe, the gas outlet pipe can be conveniently replaced when the gas outlet pipe is damaged, and when one adsorption device two is blocked, the use effect of other adsorption device two is not affected, thereby ensuring the use efficiency of the device.

[0015] The pressure swing adsorption equipment for hydrogen production of natural gas can filter the pressurized air through the installed filter device, avoid the pressurized air containing impurities, thereby causing the adsorption device one and the adsorption device two to be blocked, thereby affecting the use effect of the adsorption device one and the adsorption device two, thereby affecting the effect of the hydrogen production of natural gas, and the adsorption device two is provided with the connecting seat at one end, so that the gas outlet pipe can be installed, the prepared hydrogen is discharged and collected through the gas outlet pipe, the gas outlet pipe can be conveniently replaced when the gas outlet pipe is damaged, and when one adsorption device two is blocked, the use effect of other adsorption device two is not affected, thereby ensuring the use efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall right side view of the utility model;

[0017] Figure 2 It is the overall left side view of the utility model;

[0018] Figure 3 It is the A area local enlarged view of the utility model; Figure 2

[0019] Figure 4 It is the B area local enlarged view of the utility model; Figure 1

[0020] In the drawing: 1, stable base; 2, adsorption device one; 3, adsorption device two; 301, connecting seat; 4, connecting rod; 5, protective baffle; 6, communication pipe one; 7, control valve one; 8, connecting pipe one; 9, pneumatic valve one; 10, inlet pipe; 11, communication pipe two; 12, pneumatic valve two; 13, communication pipe three; 14, connecting pipe two; 15, filter device; 16, pressurizing pipe; 17, control valve two; 18, mounting bracket; 1801, mounting plate; 19, limit dog; 20, fixing frame; 21, gas outlet pipe; 22, exhaust duct. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1-4 ​​The utility model provides a kind of embodiment of natural gas hydrogen production pressure swing adsorption equipment, including stable base 1, adsorption device one 2 is installed in the upper of stable base 1, adsorption device two 3 is installed in the outside four quarters of adsorption device one 2, adsorption device one 2 lower end one side is equipped with communicating pipe one 6, one end of communicating pipe one 6 is equipped with control valve one 7, one end of control valve one 7 is equipped with connecting pipe one 8, one end of connecting pipe one 8 is equipped with pneumatic valve one 9, one side of pneumatic valve one 9 is equipped with inlet pipe 10, adsorption device two 3 lower end is provided with communicating pipe two 11, one side of the upper of stable base 1 is equipped with mounting bracket 18, one side of the upper of mounting bracket 18 is equipped with fixed frame 20, it needs to be explained, to save length, highlight the patent innovation elements, such as the specific working principle of pressure swing adsorption equipment, not in this patent is described.

[0023] When using, the integrated adsorption device one 2 and adsorption device two 3 can make the device occupy smaller space, so that the device can be conveniently moved and used, the filter device 15 can be installed to filter the pressurized air, avoid the pressurized air containing impurities inside, so as to cause the adsorption device one 2 and adsorption device two 3 to be blocked, thereby affecting the use effect of the adsorption device one 2 and adsorption device two 3, and the connecting seat 301 is arranged at one end of the adsorption device two 3, so that the gas outlet pipe 21 can be installed, the prepared hydrogen gas is introduced into the exhaust pipe 22 for collection through the gas outlet pipe 21, and the gas outlet pipe 21 can be conveniently replaced when damaged, and the use effect of other adsorption devices two 3 is not affected when one adsorption device two 3 is blocked.

[0024] Please refer to Figure 1 , one side of adsorption device one 2 is equipped with connecting rod 4, one side of connecting rod 4 is equipped with protective baffle 5, connecting rod 4 can be conveniently installed on protective baffle 5, and protective baffle 5 can be installed on one side of adsorption device one 2.

[0025] Please refer to Figure 1 and Figure 2 , one end of communicating pipe two 11 is provided with communicating pipe three 13, one end of communicating pipe three 13 is communicated with connecting pipe one 8, and the pressurized air can be used in reflux through the arrangement.

[0026] Please refer to Figure 1 and Figure 2 , the upper end of communicating pipe two 11 is provided with pneumatic valve two 12, the upper end of pneumatic valve two 12 is provided with connecting pipe two 14, one end of connecting pipe two 14 is equipped with filter device 15, one end of filter device 15 is clockwise with pressurizing pipe 16, one end of pressurizing pipe 16 is provided with control valve two 17, and the filter device 15 can be installed to filter the pressurized air.

[0027] Please refer to Figure 1 and Figure 2 The lower end of the mounting frame 18 is welded to the stable base 1, and one side of the inside of the mounting frame 18 is provided with a mounting plate 1801, which is welded to the mounting frame 18. The welding can make the structure between the mounting frame 18 and the stable base 1 more firm.

[0028] Please refer to Figure 1 , Figure 2 and Figure 4 One side of the mounting plate 1801 is provided with a limiting claw 19, which is arranged corresponding to the pressurizing pipe 16. The limiting claw 19 can limit and support the pressurizing pipe 16.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 One end of the adsorption device two 3 is provided with a connecting seat 301, and one side of the connecting seat 301 is provided with a gas outlet pipe 21. The gas outlet pipe 21 is provided with a plurality of exhaust pipes 22. The exhaust pipes 22 can be conveniently installed and removed, so that the gas outlet pipe 21 can be conveniently replaced when it is damaged. The hydrogen prepared by the gas outlet pipe 21 can enter the inside of the gas outlet pipe 21, and then be discharged and collected through the exhaust pipe 22.

[0030] Working principle: when in use, the integrated adsorption device one 2 and the adsorption device two 3 can occupy a small space, so that the device can be conveniently moved and used, and the device is more convenient to use. The adsorption device one 2 can be protected by the protective baffle 5, and the pressurized air can be filtered by the filter device 15, so as to avoid the presence of impurities in the pressurized air, which can cause the adsorption device one 2 and the adsorption device two 3 to be blocked, thereby affecting the use effect of the adsorption device one 2 and the adsorption device two 3, which can affect the effect of natural gas hydrogen production. At the same time, the adsorption device two 3 is provided with a connecting seat 301 at one end, so that the gas outlet pipe 21 can be installed respectively. The hydrogen prepared by the gas outlet pipe 21 can be discharged and collected through the exhaust pipe 22. The exhaust pipe 21 can be conveniently replaced when it is damaged. At the same time, when one adsorption device two 3 is blocked, it will not affect the use effect of other adsorption device two 3, so as to ensure the use efficiency of the device.

[0031] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A pressure swing adsorption apparatus for hydrogen production from natural gas, comprising a stable base (1), characterized in that: The upper of stable base (1) is installed adsorption device one (2), adsorption device one (2) outside four around all are installed adsorption device two (3), adsorption device one (2) lower end one side installs the intercommunication pipe one (6), the intercommunication pipe one (6) one end installs control valve one (7), control valve one (7) one end installs the connecting pipe one (8), the connecting pipe one (8) one end installs pneumatic valve one (9), pneumatic valve one (9) one side installs the air inlet pipe (10), adsorption device two (3) lower end is provided with intercommunication pipe two (11), stable base (1) upper one side is installed with mounting bracket (18), mounting bracket (18) upper one side is installed with fixed frame (20).

2. The pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 1, characterized by: The side of adsorption device one (2) is installed with connecting rod (4), and the side of connecting rod (4) is installed with protective baffle (5).

3. A pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 2, characterized in that: The end of intercommunication pipe two (11) is provided with intercommunication pipe three (13), and the end of intercommunication pipe three (13) is communicated with connecting pipe one (8).

4. The pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 3, characterized by: The upper end of intercommunication pipe two (11) is provided with pneumatic valve two (12), the upper end of pneumatic valve two (12) is provided with connecting pipe two (14), one end of connecting pipe two (14) is installed with filter device (15), one end of filter device (15) is clockwise with pressurizing pipe (16), one end of pressurizing pipe (16) is provided with control valve two (17).

5. A pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 4, characterized in that: The lower end of mounting bracket (18) is welded with stable base (1), and the side of the inside of mounting bracket (18) is installed with mounting plate (1801), and the mounting plate (1801) is welded with mounting bracket (18).

6. A pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 5, characterized in that: The side of mounting plate (1801) is installed with limit dog (19), and the limit dog (19) is correspondingly arranged with pressurizing pipe (16).

7. A pressure swing adsorption apparatus for hydrogen production from natural gas according to claim 6, characterized in that: The end of adsorption device two (3) is provided with connecting seat (301), the side of connecting seat (301) is installed with air outlet pipe (21), the air outlet pipe (21) is provided with a plurality of, and the side of air outlet pipe (21) is installed with exhaust pipe (22).

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