Support suitable for IGCC (integrated gasification combined cycle) gas turbine cloth bag type filter

Abstract

The invention relates to the technical field of supports, and particularly discloses a support suitable for a cloth bag type filter of an IGCC (integrated gasification combined cycle) gas turbine. The upper end of the strip-shaped bracket part is fixed on the inner side of the frame part, and the bottom end of the strip-shaped bracket part is inserted into the cloth bag and is used for opening the cloth bag, so that the filtering area is maximized; the reinforcing part is arranged on the upper surface of the frame part, is connected with the top end of the strip-shaped bracket part and is used for fixing the strip-shaped bracket part on the frame part; according to the invention, a plurality of strip-shaped filter bags can be opened at the same time, so that the problem that the filter bags are folded and twisted due to the influence of airflow during filtration can be effectively prevented, the maximization of the filter area of the cloth bag is realized, and the filter effect is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of brackets, and in particular to a bracket suitable for an IGCC gas engine bag filter. Background Art

[0002] IGCC, or integrated coal gasification combined cycle power generation system, is an advanced power system that combines coal gasification technology with efficient combined cycle. In the IGCC system, the gas turbine bag filter is an important device for purifying coal gas. Its main function is to remove dust and other particulate matter in the coal gas to protect the gas turbine from wear and corrosion and improve the efficiency and reliability of the system.

[0003] The bags of gas turbine bag filters generally use several strip-shaped bags. The bags are easily folded and twisted under the influence of airflow during filtration. Once the bags are folded and twisted, the filtration area will become smaller, seriously affecting the overall filtration efficiency. Summary of the invention

[0004] In view of the above problems existing in the existing bracket for the bag filter of the IGCC gas engine, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a support for a bag filter of an IGCC combustion engine.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a bracket suitable for an IGCC gas turbine bag filter, comprising:

[0007] Framework part;

[0008] The strip-shaped bracket part has an upper end fixed to the inner side of the frame part and a lower end inserted into the bag to open the bag to maximize its filtering area;

[0009] The reinforcement part is arranged on the upper surface of the frame part and is connected to the top of the strip-shaped support part, so as to fix the strip-shaped support part on the frame part.

[0010] As a preferred solution of the support for the bag filter of the IGCC gas engine of the present invention, the frame part includes two parallel horizontal frames and end frames for closing both ends of the two horizontal frames.

[0011] As a preferred solution of the bracket for IGCC gas engine bag filter of the present invention, the cross frame and the end frame are both made of angle steel of ∠20×20×2, the length of the cross frame is 490 mm, and the length of the end frame is 590 mm.

[0012] As a preferred solution of the bracket for the bag filter of the IGCC gas engine of the present invention, the cross frame and the end frame are fixed by welding.

[0013] As a preferred solution of the support for the bag filter of IGCC gas engine of the present invention, the frame part includes steel bars, and the steel bars are bent into a continuous "V"-shaped structure by a pipe bending machine.

[0014] As a preferred solution of the support for IGCC gas turbine bag filter described in the present invention, the steel bars are arranged in several rows, and the "V" shape of each row of the steel bars forms an independent three-dimensional support frame, and several independent three-dimensional support frames are used to support a corresponding number of strip bags.

[0015] As a preferred solution of the support for the bag filter of IGCC gas turbines of the present invention, the inner side of the "V"-shaped structure of the steel bars in the same row is provided with reinforcing ribs for increasing the strength of the three-dimensional support.

[0016] As a preferred solution of the support for the bag filter of the IGCC gas engine of the present invention, the reinforcing ribs are symmetrically arranged from top to bottom in the three-dimensional support frame.

[0017] As a preferred solution of the bracket suitable for IGCC gas turbine bag filter of the present invention, the steel bars and reinforcing ribs are both made of high alloy steel bars, and the surfaces of the steel bars and reinforcing ribs are coated with a protective layer made of polyaniline coating.

[0018] As a preferred solution of the bracket suitable for IGCC gas engine bag filter described in the present invention, the reinforcement part includes a reinforcement bar, both ends of which are respectively welded and fixed to the cross frame, and a limiting piece for limiting the steel bar is provided at the bottom of the reinforcement bar.

[0019] The beneficial effects of the present invention are as follows: the present invention can simultaneously expand a plurality of strip filter bags, which can effectively prevent the filter bags from being folded and twisted due to the influence of airflow during filtration, thereby maximizing the filter area of ​​the bag and effectively improving the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1The figure is a schematic diagram of the overall structure of a bracket of a bag filter suitable for an IGCC gas engine according to the present invention.

[0022] Figure 2 The present invention is a schematic structural diagram of the frame portion of a bracket for an IGCC gas engine bag filter.

[0023] Figure 3 The present invention is a schematic structural diagram of a strip-shaped support portion of a support for an IGCC gas engine bag filter.

[0024] Figure 4 The present invention is a schematic structural diagram of a reinforcement portion in a bracket of a bag filter for an IGCC gas engine. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1-3 , provides a bracket suitable for IGCC gas turbine bag filter, including:

[0031] Frame portion 100;

[0032] The strip-shaped support part 200 has its upper end fixed to the inner side of the frame part 100 and its lower end inserted into the cloth bag to open the cloth bag and maximize its filtering area.

[0033] During installation, the bottom end of the strip support frame part 200 is inserted from the upper end of the cloth bag, and the frame part 100 is stuck on the fixed frame at the top of the cloth bag. After the strip support frame part 200 is inserted into the cloth bag, it will be stretched open, thereby having a shaping effect. After shaping, the cloth bag will not be folded or twisted under the influence of airflow, thereby ensuring that the filtering area of ​​the cloth bag is maximized and the overall filtering efficiency is improved.

[0034] Furthermore, the frame portion 100 includes two parallel horizontal frames 101 and end frames 102 for closing both ends of the two horizontal frames 101 .

[0035] Furthermore, the cross frame 101 and the end frame 102 both use angle steel of ∠20×20×2, the length of the cross frame 101 is 490 mm, and the length of the end frame 102 is 590 mm.

[0036] Specifically, the cross frame 101 and the end frame 102 are fixed by welding. After welding, a rectangular structure is formed between the two cross frames 101 and the end frames 102. A card slot 103 is formed at the bottom of the angle steel structure after being combined. The card slot 103 is stuck on the fixed frame above the cloth bag, which is convenient for disassembly and assembly. The angle steel is strong and can provide better support and fixation.

[0037] Furthermore, the frame portion 100 includes a steel bar 201, and the steel bar 201 is bent into a continuous "V"-shaped structure by a pipe bending machine.

[0038] Specifically, the two ends of the steel bar 201 are welded and fixed to the inner side of the end frame 102. Before welding, it is necessary to remove rust and oil stains on the welding parts of the steel bar 201 and the end frame 102 to ensure the cleanliness of the welding area. During welding, an arc should be struck in the weld formed by the auxiliary bar welding or lap welding, and the arc pit should be filled before the end of the arc is closed to ensure that the main weld and the starting and ending ends of the positioning weld are fused. The thickness of the weld should not be less than 0.3 times the diameter of the main reinforcement, and the width should not be less than 0.7 times the diameter of the main reinforcement to maximize the firmness of the connection between the steel bar 201 and the end frame 102.

[0039] The diameter of the steel bar 201 is 3.5 mm, and the "V"-shaped height of the steel bar 201 after bending is 500 mm. The 3.5 mm steel bar 201 has better plasticity and appropriate strength, and the height after bending is used to adapt to the height of the cloth bag.

[0040] Furthermore, the steel bars 201 are arranged in several rows, and the spacing between adjacent rows of steel bars 201 is 75.71 mm. The "V" shape of each row of steel bars 201 forms an independent three-dimensional support frame 202. Several independent three-dimensional support frames 202 are used to support a corresponding number of strip bags. The bracket of the present application is suitable for the bag filter of the gas turbine of Tianjin IGCC unit (specifications are 590*490*6008 bags).

[0041] Furthermore, reinforcing ribs 203 for increasing the strength of the three-dimensional support frame 202 are disposed on the inner side of the “V”-shaped structure of the steel bars 201 in the same row.

[0042] Specifically, the reinforcing ribs 203 are symmetrically arranged from top to bottom in the three-dimensional support frame 202, and the spacing between two adjacent reinforcing ribs 203 is 83 mm. The reinforcing ribs 203 are welded and fixed to the inner side of the three-dimensional support frame 202. On the one hand, they connect several rows of steel bars 201, and on the other hand, they are used to improve the overall strength of the three-dimensional support frame 202.

[0043] Example 2

[0044] This embodiment is different from the first embodiment in that both the steel bar 201 and the reinforcing rib 203 are made of high alloy steel bars, and the surfaces of the steel bar 201 and the reinforcing rib 203 are coated with a protective layer.

[0045] Specifically, the IGCC gas turbine bag filter is mainly used to filter impurities in coal gas, and coal gas has strong acid corrosion. At the same time, due to the use of dry dust removal, sulfates and chlorides contained in the gas pipeline become salt ions in the condensed water, forming micro-batteries, which react chemically with the steel bars 201 and the reinforcing ribs 203, resulting in electrochemical corrosion. The protective layer adopts polyaniline coating. Studies have shown that polyaniline can effectively improve the toughness and corrosion resistance of the coating. After immersion in a high-temperature salt solution for 70 days, the C-2.0% PANI coating obtained by centrifugal treatment has the best comprehensive performance. There is basically no corrosion reaction on the cracked metal surface. At the same time, the polyaniline coating can react with the metal to catalyze passivation, and form a dense passivation film on the metal surface, which effectively blocks the metal from the corrosive medium in the environment and slows down the corrosion reaction rate of the metal.

[0046] This design can protect the steel bars 201 and the reinforcing ribs 203, reduce damage caused by the environment, effectively extend the overall service life, and reduce cost waste.

[0047] The rest of the structure is the same as that of Example 1.

[0048] Example 3

[0049] Reference Figure 4 , this embodiment is different from the above embodiment in that: this embodiment provides a support for an IGCC gas engine bag filter, further comprising:

[0050] The reinforcing portion 300 is disposed on the upper surface of the frame portion 100 and connected to the top of the strip-shaped support portion 200, and is used to fix the strip-shaped support portion 200 on the frame portion 100;

[0051] Specifically, a plurality of reinforcing parts 300 are arranged, which are horizontally mounted on the upper surface of the frame part 100 and correspond to the upper end connection of the "V"-shaped structure adjacent to the reinforcing bar 201, so as to limit it and prevent the displacement of the reinforcing bar 201, thereby ensuring the overall stability.

[0052] The reinforcement part 300 includes a reinforcement bar 301, both ends of which are respectively welded and fixed to the cross frame 101, and a limiting member for limiting the position of the steel bar 201 is provided at the bottom of the reinforcement bar 301;

[0053] Specifically, the limiting member includes a limiting block 302, and a limiting groove 303 is provided on the limiting block 302. The limiting groove is located at the connection between two adjacent "V" structures and is used to limit the shaking of each column of steel bars 201 to ensure the firmness of the overall structure.

[0054] The rest of the structure is the same as that of Example 2.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0056] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0057] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A bracket suitable for IGCC gas turbine bag filter, characterized in that: include: Frame portion (100); A strip-shaped support part (200), the upper end of which is fixed to the inner side of the frame part (100), and the bottom end of which is inserted into the cloth bag to open the cloth bag and maximize its filtering area; The reinforcing portion (300) is arranged on the upper surface of the frame portion (100) and is connected to the top of the strip-shaped support portion (200) and is used to fix the strip-shaped support portion (200) to the frame portion (100).

2. The bracket for IGCC gas engine bag filter according to claim 1, characterized in that: The frame part (100) comprises two parallel horizontal frames (101) and an end frame (102) for closing both ends of the two horizontal frames (101).

3. The bracket for IGCC gas engine bag filter according to claim 2, characterized in that: The cross frame (101) and the end frame (102) are both made of angle steel of ∠20×20×2, the length of the cross frame (101) is 490 mm, and the length of the end frame (102) is 590 mm.

4. The bracket for the IGCC gas engine bag filter according to claim 3, characterized in that: The cross frame (101) and the end frame (102) are fixed by welding.

5. The bracket for IGCC gas engine bag filter according to claim 4, characterized in that: The frame part (100) comprises a steel bar (201), and the steel bar (201) is bent into a continuous "V"-shaped structure by using a pipe bending machine.

6. The bracket for the IGCC gas engine bag filter according to claim 5, characterized in that: The steel bars (201) are arranged in a plurality of rows, and the "V" shape of each row of the steel bars (201) forms an independent three-dimensional support frame (202). The independent three-dimensional support frames (202) are used to support a corresponding number of strip-shaped cloth bags.

7. The bracket for the IGCC gas engine bag filter according to claim 6, characterized in that: The inner sides of the "V"-shaped structures of the steel bars (201) in the same row are all provided with reinforcing ribs (203) for increasing the strength of the three-dimensional support frame (202).

8. The bracket for the IGCC gas engine bag filter according to claim 7, characterized in that: The reinforcing ribs (203) are symmetrically arranged in sequence from top to bottom in the three-dimensional support frame (202).

9. The bracket for the IGCC gas engine bag filter according to claim 8, characterized in that: The steel bars (201) and the reinforcing ribs (203) are both made of high alloy steel bars, and the surfaces of the steel bars (201) and the reinforcing ribs (203) are coated with a protective layer, which is made of polyaniline coating.

10. The bracket for IGCC gas engine bag filter according to claim 9, characterized in that: The reinforcement part (300) comprises a reinforcement bar (301), the two ends of which are respectively welded and fixed to the cross frame (101), and a limiting piece for limiting the position of the steel bar (201) is provided at the bottom of the reinforcement bar (301).

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