CN212128083U - Miniaturized natural gas desulphurization unit - Google Patents

Abstract

The utility model discloses a miniaturized natural gas desulphurization unit, it includes support frame, at least two-stage digester and locking part, and the support frame is provided with running part, and at least two-stage digester is in series and sets up in the support frame in proper order, and at least two-stage digester is filled with different types of desulfurizer respectively, and digester vertical layout, locking part cover are established on the digester and are connected to the support frame, and the digester is located between locking part and the support frame and with the equal butt of locking part and support frame, and locking part exerts the effort to the digester, makes the digester quilt locking part with the support frame presss from both sides tightly to remain stable. The utility model provides a desulphurization unit has miniaturized characteristic, can be applied to solid oxide fuel cell power generation system, carries out desulfurization treatment to the natural gas of carrying to solid oxide fuel cell power generation system.

Description

Miniaturized natural gas desulphurization unit

Technical Field

The utility model relates to a gas treatment technical field, and more specifically relates to a miniaturized natural gas desulphurization unit.

Background

The SOFC (Solid Oxide Fuel Cell) power generation system can be widely applied to the field of distributed energy resources such as buildings, banks, hospitals and the like, and has a certain application prospect in the field of partial automobiles and ships.

Natural gas is used as a conventional fuel of the current SOFC power generation system, and organic sulfur and inorganic sulfur in the natural gas not only corrode a pipeline, but also poison an anode, an electrolyte material and a reforming catalyst in the SOFC power generation system, thereby affecting the electrochemical reaction of a fuel cell and the stability of the power generation system. Since sulfur has a large influence on the activity of the reforming catalyst, the quality of natural gas directly determines the service life and power generation efficiency of the fuel cell. At present, natural gas of an SOFC power generation system is generally sourced from pipeline natural gas, although domestic pipeline natural gas is subjected to desulfurization treatment, the sulfur content of the pipeline natural gas after desulfurization treatment still does not meet the requirement of a galvanic pile on the sulfur content, and therefore the service life and the power generation efficiency of a fuel cell are influenced.

The natural gas desulfurization device used in the current market has the advantages of large volume, high equipment manufacturing cost and quite complex structure, and is not suitable for being directly used in an SOFC power generation system.

Accordingly, there is a need for a miniaturized natural gas desulfurization unit that at least partially solves the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

In order to solve the above problem at least in part, according to an aspect of the present invention, there is provided a miniaturized natural gas desulfurization device for desulfurization treatment of natural gas delivered to a solid oxide fuel cell power generation system, comprising:

the supporting frame is provided with a walking part;

the at least two-stage desulfurization tanks are sequentially connected in series and arranged in the support frame, different kinds of desulfurizing agents are respectively filled in the at least two-stage desulfurization tanks, and the desulfurization tanks are vertically arranged; and

the locking part, the locking part cover is established on the digester and be connected to the support frame, the digester is located locking part with between the support frame and with locking part with the equal butt of support frame, locking part is right the digester is applyed the effort, makes the digester quilt locking part with the support frame is tight, in order to remain stable.

Optionally, at least two of the locking components are vertically spaced apart.

Optionally, the locking part comprises a sleeve joint part and two connecting arms connected with the sleeve joint part, the devulcanizer is limited between the two connecting arms and between the sleeve joint part and the cross beam of the support frame, and the end parts of the connecting arms are connected to the cross beam.

Optionally, the at least two stages of devulcanizers are configured to be identical in structure and/or size; and/or the size of the devulcanizer tank is configured to be related to the power of the stack of the solid oxide fuel cell power generation system.

Optionally, the support frame comprises a column and a beam connected to each other, the beam enclosing an annular region in which the devulcanizer tank is disposed.

Optionally, the shape of the locking component is matched with the shape of the desulfurization tank; and/or

The locking member is detachably connected to the support bracket.

Optionally, a filter screen is arranged on the upper part and/or the lower part of the desulfurization tank, and a filter membrane is paved on the filter screen.

Optionally, including the one-level digester, second grade digester and the tertiary digester that establish ties in proper order, the top intercommunication of one-level digester has the pipeline that is used for the gas import of natural gas inflow, the bottom intercommunication of tertiary digester has the pipeline that is used for the gas outlet of natural gas outflow.

Optionally, the desulfurizing agent comprises an iron oxide desulfurizing agent, a carbonyl desulfurizing agent and a zinc oxide desulfurizing agent which are respectively filled in the primary desulfurizing tank, the secondary desulfurizing tank and the tertiary desulfurizing tank.

Optionally, adjacent desulfurization tanks are connected with pipelines, and the pipelines are connected together through movable joints.

The utility model provides a miniaturized natural gas desulphurization unit has miniaturized characteristic, can be applied to solid oxide fuel cell power generation system, carries out desulfurization treatment to the natural gas of carrying to solid oxide fuel cell power generation system. The whole structure is simple and compact, the desulfurization tank can be installed in a clamping mode, and the desulfurization tank cannot move relative to the support frame due to the action of the locking component. The organic sulfur and the inorganic sulfur in the natural gas can be removed step by step, the desulfurization efficiency is high, the sulfur content of the natural gas can be reduced to a lower level, such as below 0.2ppm, the electrochemical reaction of a fuel cell and the stability of a power generation system are ensured, and the phenomena of pipeline corrosion, anode of an SOFC power generation system, electrolyte material and poisoning of a reforming catalyst in the system are avoided.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings embodiments of the invention and the description thereof for the purpose of illustrating the devices and principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a schematic perspective view of a miniaturized natural gas desulfurization apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the construction of the desulfurization tank shown in FIG. 1;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Description of the reference numerals

100: the desulfurization device 110: supporting frame

111: column 112: cross beam

113: upper cross member 114: lower cross beam

115: the traveling member 120: desulfurizing tank

121: the movable joint 122: first-stage desulfurizing tank

123: the secondary desulfurization tank 124: three-stage desulfurizing tank

125: first pipe 126: second pipeline

127: third pipe 128: fourth pipeline

130: the locking member 131: upper locking member

132: lower locking member 133: coupling part

134: the connecting arm 141: gas inlet

142: gas outlet 151: iron oxide desulfurizer

152: carbonyl desulfurization agent 153: zinc oxide desulfurizer

160: filter screen

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The present invention is described in detail below with reference to the preferred embodiments, however, the present invention can have other embodiments in addition to the detailed description, and should not be construed as being limited to the embodiments set forth herein.

It is to be understood that the terms "a," "an," and "the" as used herein are intended to describe specific embodiments only and are not to be taken as limiting the invention, which is intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only and are not limiting.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present invention and do not limit the present invention.

The utility model provides a miniaturized natural gas desulphurization unit 100 (be referred to as desulphurization unit 100 for short hereinafter), this desulphurization unit 100 have miniaturized characteristic, can be applied to solid oxide fuel cell power generation system, carry out desulfurization treatment to the natural gas of carrying to solid oxide fuel cell power generation system.

As shown in fig. 1, the desulfurization apparatus 100 may include a support frame 110 and at least two-stage desulfurization tanks 120. The support frame 110 may include a vertical column 111 and a horizontal beam 112 connected to the vertical column 111, and may also include a diagonal beam (not shown) connecting the vertical column 111 and the horizontal beam 112 to reinforce the structural strength of the support frame 110. At least two stages of the desulfurization tanks 120 are disposed on the cross member 112 of the support frame 110, and are fixed and moved by the support frame 110. In the illustrated embodiment, the support 110 constitutes a simple frame structure, for example, a rectangular frame. The cross member 112 encloses an annular region, and at least two stages of the desulfurization tanks 120 are disposed in the support frame 110, i.e., located within the annular region. The structure of the supporting frame 110 is not limited thereto, and may be arbitrarily set as required.

The devulcanizer tank 120 may be vertically arranged and may be mounted to the support frame 110 by a locking member 130. Specifically, the locking member 130 can be fitted over the devulcanizer tank 120 with its end connected to the cross member 112 of the support bracket 110. The devulcanizer tank 120 is positioned between the locking members 130 and the beams 112 of the support frames 110, and abuts both the locking members 130 and the beams 112 of the support frames 110. The locking member 130 can apply a force to the desulfurization tank 120, so that the desulfurization tank 120 is clamped by the locking member 130 and the support frame 110, specifically, by the locking member 130 and the cross beam 112, and in this embodiment, the desulfurization tank 120 can be supported by the support frame 110 and can be kept stable. The desulfurization tank 120 of the present embodiment is small in size, and unlike a desulfurization apparatus used in industry, can be mounted in a clamping manner, and the desulfurization tank 120 does not move relative to the support frame 110 due to the locking member 130.

The bracket may include at least two cross beams 112 that are vertically spaced apart, and at least two locking members 130 may be vertically spaced apart. The locking members 130 can correspond to the beams 112 spaced apart in the vertical direction, and are respectively mounted to different beams 112 to secure the stability of the devulcanizer tank 120. In the illustrated embodiment, two locking members 130, i.e., an upper locking member 131 and a lower locking member 132, are shown disposed one above the other, and two cross members 112, i.e., an upper cross member 113 and a lower cross member 114, are shown disposed one above the other, the upper locking member 131 being connectable to the upper cross member 113 and the lower locking member 132 being connectable to the lower cross member 114. In an embodiment not shown, each desulfurization unit 100 may be connected to the cross beam 112 by only one locking member 130. Locking member 130 may be mounted to column 111 instead of beam 112 if needed and/or desired.

The shape of the locking member 130 is adapted to the shape of the devulcanizer 120. The locking component 130 may be generally U-shaped, i.e., the locking component 130 is configured as a U-shaped member. Specifically, the locking part 130 may include a socket part 133 and two connection arms 134 connected to the socket part 133, the devulcanizer tank 120 is confined between the two connection arms 134 and between the socket part 133 and the cross beam 112 of the support bracket 110, and ends of the connection arms 134 can be connected to the cross beam 112. The connecting arm 134 of the locking member 130 may be detachably connected to the cross member 112 of the supporting bracket 110. For example, the two connecting arms 134 may be respectively fastened to the cross member 112 by fasteners such as bolts. In this embodiment, the clamping degree of the desulfurization tank 120 by the locking member 130 and the supporting frame 110 can be adjusted by the locking degree of the bolts, and the controllability is provided.

In an exemplary embodiment, the locking member 130 may be a saddle clamp, the digester 120 is fixed on the beam 112 by the saddle clamp, and the saddle clamp is fixed by a bolt and a nut, so as to facilitate the installation and the disassembly.

At least two stages of the desulfurization tanks 120 may be arranged side by side on the same cross member 112 of the support frame 110. Alternatively, at least two stages of the desulfurization tanks 120 may be alternately arranged on two beams 112 spaced apart in the horizontal direction. The specific arrangement of the at least two-stage desulfurization tank 120 is not limited. The adjacent desulfurization tanks 120 are communicated with each other via a pipe. The top parts or the bottom parts of the adjacent desulfurization tanks 120 are communicated, so that the arrangement is simple, the structure is compact, the length of a pipeline is reduced, and the cost is saved. Of course, the top of one of the adjacent devulcanizers 120 may be in communication with the bottom of the other of the adjacent devulcanizers 120, if needed and/or desired.

At least two stages of the desulfurization tanks 120 can be sequentially connected in series. In the present embodiment, by providing at least two stages of the desulfurization tanks 120, it is possible to remove organic sulfur and inorganic sulfur from the natural gas step by step and reduce the sulfur content of the natural gas to a low level, for example, to 0.2ppm or less, thereby ensuring the electrochemical reaction of the fuel cell and the stability of the power generation system, and preventing the occurrence of corrosion of the pipeline, the anode of the SOFC power generation system, the electrolyte material, and the poisoning of the reforming catalyst in the system.

The adjacent desulfurization tanks 120 are connected to a pipeline, and the pipelines connected to the adjacent desulfurization tanks 120 are connected together by a union 121. Thus, it is possible to facilitate the disassembly of the desulfurization tank 120, thereby facilitating the replacement of the desulfurizing agent in the desulfurization tank 120. In the illustrated embodiment, the desulfurization unit 100 may include a primary desulfurization tank 122, a secondary desulfurization tank 123, and a tertiary desulfurization tank 124, which are connected in series in this order. The first pipeline 125 is connected to the top of the primary desulfurization tank 122, the first pipeline 125 has a gas inlet 141 for inflow of natural gas, the second pipeline 126 is connected to the bottom of the tertiary desulfurization tank 124, and the second pipeline 126 has a gas outlet 142 for outflow of natural gas, so that an inflow mode of flowing from the top to the bottom can be adopted. The bottom of the primary desulfurization tank 122 and the bottom of the secondary desulfurization tank 123 are communicated via a third line 127, and the top of the secondary desulfurization tank 123 and the top of the tertiary desulfurization tank 124 are communicated via a fourth line 128. A union 121 may be provided on each of the third and fourth lines 127, 128.

As shown in fig. 2, at least two stages of the desulfurization tanks 120 are filled with different kinds of desulfurizing agents, respectively, and thus the desulfurization efficiency can be improved and the sulfur content of the natural gas can be further reduced. The desulfurizing agent may include an iron oxide desulfurizing agent 151, a carbonyl desulfurizing agent 152, and a zinc oxide desulfurizing agent 153. These three desulfurizing agents may be charged into the above-mentioned tertiary desulfurization tank 124, respectively, and for example, as an example, an iron oxide desulfurizing agent 151, a carbonyl desulfurizing agent 152, and a zinc oxide desulfurizing agent 153 may be charged into the primary desulfurization tank 122, the secondary desulfurization tank 123, and the tertiary desulfurization tank 124, respectively. The natural gas firstly enters the primary desulfurization tank 122 through a pipeline, and inorganic sulfur such as hydrogen sulfide in the natural gas is adsorbed into the small holes of the iron oxide desulfurizer 151, so that primary desulfurization is realized; then enters a secondary desulfurization tank 123, and organic sulfur in the natural gas is removed through catalytic oxidation of a carbonyl desulfurizer 152; and finally, the natural gas enters a three-stage desulfurizing tank 124, and inorganic sulfur in the natural gas is removed through catalytic oxidation of a zinc oxide desulfurizing agent 153. When the desulfurizing agent is saturated, steam stripping can be adopted to regenerate the desulfurizing agent, so that the desulfurizing agent can be recycled.

The desulfurization apparatus 100 of the present embodiment has a high desulfurization speed and a good effect, and can maintain the sulfur content in the natural gas at a low level, for example, 0.2ppm or less, by multi-stage desulfurization, thereby further ensuring the purity of the natural gas entering the reformer of the SOFC power generation system and improving the power generation efficiency of the stack of the SOFC power generation system.

The devulcanizer tank 120 may have a cylindrical shape. The size of the devulcanizer tank 120 is configured to be related to the power of the stack, and as the power of the stack increases, the size of the devulcanizer tank 120 is designed to increase accordingly. Since the size of the devulcanizer 120 is configured in relation to the power of the stack, the process requirements can be met by keeping the size of the devulcanizer 120 small. For example, as an example, in an embodiment where the desulfurization tank 120 corresponds to a stack having a power of 50KW, the diameter size of the desulfurization tank may be about 300mm, and particularly, may be about 150mm to 300 mm. The natural gas pressure within the desulfurizer 100 is controlled at about 5Kpa to 15Kpa, for example, 10 Kpa. The desulfurization unit 100 may be made of a stainless steel material such as 304 stainless steel. For example, the support bracket 110 may be made of a stainless steel material.

As shown in fig. 3, for the illustrated embodiment, since the desulfurization device 100 adopts an air intake mode of flowing from the top into the bottom, it is preferable that the lower portion of the desulfurization tank 120 is provided with a filter screen 160, and the filter screen 160 has a high-density mesh. A filtering membrane can be laid on the filtering net 160. Therefore, the desulfurizer particles and dust pollutants in the desulfurizing tank 120 can be blocked from entering the galvanic pile along with the natural gas, and the performance of the galvanic pile is prevented from being influenced. Of course, for other embodiments not shown, the upper portion of the devulcanizer tank 120 may also be provided with a filter net and a filter membrane laid on the filter net.

The desulfurization apparatus 100 of the illustrated embodiment is a single unit, the support frame 110 may be provided with the traveling members 115, and the desulfurization apparatus 100 may have a smaller overall size than a desulfurization apparatus used in industry, and may be provided with the traveling members 115 for facilitating transportation of the desulfurization apparatus 100. The running members 115 may be wheels, for example, two fixed wheels and two universal wheels may be provided at intervals. In other embodiments, the support frame 110 herein may be part of other equipment, such as a william cabinet, a power distribution cabinet, etc., and the devulcanizer tank 120 may be directly mounted to the support frame of the other equipment.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that many more modifications and variations can be made in accordance with the teachings of the present invention, all of which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A miniaturized natural gas desulfurization device for desulfurization treatment of natural gas delivered to a solid oxide fuel cell power generation system, characterized by comprising:

the supporting frame is provided with a walking part;

the at least two-stage desulfurization tanks are sequentially connected in series and arranged on the support frame, different kinds of desulfurizing agents are respectively filled in the at least two-stage desulfurization tanks, and the desulfurization tanks are vertically arranged; and

the locking part, the locking part cover is established on the digester and be connected to the support frame, the digester is located locking part with between the support frame and with locking part with the equal butt of support frame, locking part is right the digester is applyed the effort, makes the digester quilt locking part with the support frame is tight, in order to remain stable.

2. The miniaturized natural gas desulfurization device of claim 1, wherein at least two of the locking members are vertically spaced apart.

3. The miniaturized natural gas desulfurization device according to claim 1, wherein the locking member comprises a socket portion and two connecting arms connected to the socket portion, the desulfurization tank is positioned between the two connecting arms and between the socket portion and the cross beam of the support frame, and ends of the connecting arms are connected to the cross beam.

4. The miniaturized natural gas desulfurization apparatus of claim 1,

the at least two-stage desulfurization tanks are constructed to be identical in structure and/or size; and/or the size of the devulcanizer tank is configured to be related to the power of the stack of the solid oxide fuel cell power generation system.

5. The miniaturized natural gas desulfurization device according to claim 1, wherein the support frame comprises a column and a beam connected to each other, the beam enclosing an annular region in which the desulfurization tank is disposed.

6. The miniaturized natural gas desulfurization apparatus of claim 1,

the shape of the locking component is matched with that of the desulfurizing tank; and/or

The locking member is detachably connected to the support bracket.

7. The miniaturized natural gas desulfurization device according to claim 1, wherein a filter screen is provided on an upper portion and/or a lower portion of the desulfurization tank, and a filter membrane is laid on the filter screen.

8. The miniaturized natural gas desulfurization device according to claim 1, comprising a primary desulfurization tank, a secondary desulfurization tank and a tertiary desulfurization tank which are connected in series in sequence, wherein the top of the primary desulfurization tank is communicated with a pipeline having a gas inlet for inflow of natural gas, and the bottom of the tertiary desulfurization tank is communicated with a pipeline having a gas outlet for outflow of natural gas.

9. The miniaturized natural gas desulfurization device according to claim 8, wherein the desulfurizing agents include an iron oxide desulfurizing agent, a carbonyl desulfurizing agent and a zinc oxide desulfurizing agent, which are filled in the primary desulfurization tank, the secondary desulfurization tank and the tertiary desulfurization tank, respectively.

10. The miniaturized natural gas desulfurization device according to claim 1, wherein adjacent ones of the desulfurization tanks are connected with pipelines, and the pipelines are connected together through a movable joint.

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