A support for a bag filter of an IGCC combustion engine

Abstract

The present application relates to the technical field of support, and more particularly to a support for IGCC combustion engine bag filter, comprising: a frame part; a strip-shaped support part, the upper end of which is fixed to the inner side of the frame part, and the bottom end of which is inserted into a bag for supporting the bag to maximize the filtering area; a reinforcing part, which is arranged on the upper surface of the frame part and connected with the top end of the strip-shaped support part, for fixing the strip-shaped support part on the frame part; the present application can simultaneously support several strip-shaped filter bags, effectively prevent the filter bags from being folded and twisted due to the influence of air flow during filtering, maximize the filtering area of the bag, and effectively improve the filtering effect.

Description

Technical Field

[0001] This invention relates to the technical field of support systems, and more particularly to a support system suitable for bag filters in IGCC gas turbines. Background Technology

[0002] IGCC, or Integrated Gasification Combined Cycle Power Generation System, is an advanced power system that combines gasification technology with a highly efficient combined cycle. In an IGCC system, the gas turbine bag filter is an important device for purifying the gas. Its main function is to remove dust and other particulate matter from the gas to protect the gas turbine from wear and corrosion, thereby improving the system's efficiency and reliability.

[0003] Gas turbine bag filters typically use several strip-shaped bags. During filtration, these bags are prone to folding and twisting due to airflow. Once folded or twisted, the filtration area decreases, severely affecting the overall filtration efficiency. Summary of the Invention

[0004] In view of the problems existing in the current support for bag filters for IGCC gas turbines, the present invention is proposed.

[0005] Therefore, the object of this invention is to provide a support for a bag filter suitable for IGCC gas turbines.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a support for a bag filter suitable for IGCC gas turbines, comprising:

[0007] Framework section;

[0008] The strip support section has its upper end fixed to the inside of the frame section, and its lower end inserted into the cloth bag to open the cloth bag and maximize its filtration area.

[0009] The reinforcing part is located on the upper surface of the frame part and is connected to the top of the strip bracket part, and is used to fix the strip bracket part to the frame part.

[0010] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the frame portion includes two parallel crossbars and end frames for closing the two ends of the crossbars.

[0011] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the cross frame and the end frame are both made of ∠20×20×2 angle steel, the length of the cross frame is 490mm, and the length of the end frame is 590mm.

[0012] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the cross frame and the end frame are fixed by welding.

[0013] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the strip support portion includes steel bars, which are bent into a continuous "V" shape using a pipe bending machine.

[0014] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the steel bars are arranged in several columns, and the "V" shape of each column of steel bars forms an independent three-dimensional support frame. The several independent three-dimensional supports are used to open up a corresponding number of strip bags.

[0015] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, wherein: the inner side of the "V"-shaped structure of the steel bars in the same row is provided with reinforcing ribs to increase the strength of the three-dimensional support.

[0016] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the reinforcing ribs are symmetrically arranged from top to bottom within the three-dimensional support frame.

[0017] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the steel bars and reinforcing ribs are all made of high alloy steel bars, and the surfaces of the steel bars and reinforcing ribs are coated with a protective layer, which is made of polyaniline coating.

[0018] As a preferred embodiment of the support for the bag filter of IGCC gas turbine described in this invention, the reinforcing part includes a reinforcing strip, both ends of which are welded and fixed to the cross frame, and the bottom of the reinforcing strip is provided with a limiting member for limiting the reinforcing bar.

[0019] The beneficial effects of this invention are: This invention can simultaneously open several strip filter bags, which can effectively prevent the filter bags from folding and twisting due to airflow during filtration, thereby maximizing the filtration area of ​​the filter bags and effectively improving the filtration effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1This is a schematic diagram of the overall structure of the support for the bag filter of the IGCC gas turbine according to the present invention.

[0022] Figure 2 This is a schematic diagram of the frame portion of the support structure for the bag filter of the IGCC gas turbine according to the present invention.

[0023] Figure 3 This is a schematic diagram of the strip support portion in the support structure of the bag filter for IGCC gas turbines according to the present invention.

[0024] Figure 4 This is a schematic diagram of the reinforcing part in the support of the bag filter for IGCC gas turbines according to the present invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example 1

[0029] Reference Figure 1-3 A support for a bag filter for an IGCC gas turbine is provided, comprising:

[0030] Frame section 100;

[0031] The strip support section 200 has its upper end fixed to the inside of the frame section 100, and its bottom end inserted into the cloth bag to open the cloth bag and maximize its filtration area.

[0032] During installation, insert the bottom end of the strip support portion 200 into the top of the cloth bag, and the frame portion 100 is secured to the fixed frame at the top of the cloth bag. After the strip support portion 200 is inserted into the cloth bag, it will expand it, thereby achieving a shaping effect. After shaping, the cloth bag will not fold or twist under the influence of airflow, ensuring the maximization of the filter area of ​​the cloth bag and improving the overall filtration efficiency.

[0033] Furthermore, the frame portion 100 includes two parallel crossbeams 101 and end frames 102 for closing the two ends of the crossbeams 101.

[0034] Furthermore, both the crossbeam 101 and the end frame 102 are made of ∠20×20×2 angle steel, with the crossbeam 101 having a length of 490mm and the end frame 102 having a length of 590mm.

[0035] Specifically, the cross frame 101 and the end frame 102 are fixed by welding. After welding, the two cross frames 101 and the end frame 102 form a rectangular structure. After the angle steel structure is combined, its bottom will form a slot 103. The slots 103 are locked onto the fixing frame on the bag, which facilitates disassembly and assembly. Moreover, the angle steel has high strength and can provide better support and fixation.

[0036] Furthermore, the strip support portion 200 includes a steel bar 201, which is bent into a continuous "V" shape using a pipe bending machine.

[0037] Specifically, the two ends of the reinforcing bar 201 are welded and fixed to the inner side of the end frame 102. Before welding, rust and oil stains on the welding parts of the reinforcing bar 201 and the end frame 102 need to be removed to ensure the cleanliness of the welding area. When welding, the arc should be struck in the weld formed by the butt weld or lap weld, and the arc crater should be filled before the arc ends are closed to ensure that the beginning and end of the main weld and the locating 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 reinforcing bar 201 and the end frame 102.

[0038] The diameter of the steel bar 201 is 3.5mm. After bending, the "V" height of the steel bar 201 is 500mm. The 3.5mm steel bar 201 has good plasticity and suitable strength. The height after bending is used to match the height of the cloth bag.

[0039] Furthermore, the reinforcing bars 201 are arranged in several columns, with a spacing of 75.71 mm between adjacent columns of reinforcing bars 201. Each column of reinforcing bars 201 forms an independent three-dimensional support frame 202. Several independent three-dimensional supports 202 are used to support a corresponding number of strip bags. The support of this application is adapted to the bag filter of the Tianjin IGCC unit gas turbine (specification is 590*490*6008 bags).

[0040] Furthermore, the inner side of the "V"-shaped structure of the steel bars 201 in the same row is provided with reinforcing ribs 203 to increase the strength of the three-dimensional support frame 202.

[0041] Specifically, the reinforcing ribs 203 are symmetrically arranged from top to bottom inside the three-dimensional support frame 202. The spacing between two adjacent reinforcing ribs 203 is 83mm. The reinforcing ribs 203 are welded and fixed to the inner side of the three-dimensional support frame 202, which connects several rows of steel bars 201 on the one hand, and improves the overall strength of the three-dimensional support frame 202 on the other hand. Example 2

[0042] This embodiment differs from the first embodiment in that both the reinforcing bar 201 and the reinforcing bar 203 are made of high alloy steel bars, and the surfaces of the reinforcing bar 201 and the reinforcing bar 203 are coated with a protective layer.

[0043] Specifically, the IGCC gas turbine bag filter is mainly used to filter impurities in coal gas. Coal gas has strong acid corrosiveness. At the same time, due to the use of dry dust removal, the sulfates and chlorides contained in the coal gas pipeline become salt ions in the condensate, forming micro-batteries. These micro-batteries react chemically with the steel bars 201 and reinforcing ribs 203, leading to electrochemical corrosion. The protective layer uses polyaniline coating. Studies have shown that polyaniline can effectively improve the toughness and corrosion resistance of the coating. After being soaked in a high-temperature salt solution for 70 days, the C-2.0%PANI coating obtained after centrifugation has the best comprehensive performance. The metal surface after cracking has basically no corrosion reaction. At the same time, the polyaniline coating can undergo a catalytic passivation reaction with the metal, forming a dense passivation film on the metal surface, effectively blocking the metal from corrosive media in the environment and slowing down the corrosion reaction rate of the metal.

[0044] This design can protect the steel bars 201 and the reinforcing bars 203, reduce environmental damage, effectively extend the overall service life, and reduce cost waste.

[0045] The rest of the structure is the same as in Example 1. Example 3

[0046] Reference Figure 4 This embodiment differs from the previous embodiments in that: the bracket provided in this embodiment for a bag filter suitable for IGCC gas turbines further includes:

[0047] The reinforcing part 300 is disposed on the upper surface of the frame part 100 and connected to the top of the strip bracket part 200, for fixing the strip bracket part 200 to the frame part 100;

[0048] Specifically, the reinforcement part 300 is provided in several parts, which are horizontally mounted on the upper surface of the frame part 100 and are connected at the upper end of the "V" shaped structure adjacent to the steel bar 201. They are used to restrict the steel bar 201, prevent its displacement, and ensure the overall stability.

[0049] The reinforcing part 300 includes a reinforcing strip 301, both ends of which are welded and fixed to the cross frame 101, and the bottom of the reinforcing strip 301 is provided with a limiting member for limiting the reinforcing bar 201;

[0050] Specifically, the limiting component includes a limiting block 302, on which a limiting groove 303 is provided. The limiting groove is located at the connection of two adjacent "V" structures and is used to limit the swaying of each row of steel bars 201 to ensure the overall structure is firm.

[0051] The rest of the structure is the same as in Example 2.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A support for a bag filter suitable for IGCC gas turbines, characterized in that: include: Framework section (100); The strip support section (200) has its upper end fixed to the inside of the frame section (100) and its bottom end inserted into the cloth bag to open the cloth bag and maximize its filtration area. The reinforcing part (300) is disposed on the upper surface of the frame part (100) and connected to the top of the strip support part (200) for fixing the strip support part (200) to the frame part (100); The strip support section (200) includes steel bars (201), which are bent into a continuous "V" shape using a pipe bending machine; The steel bars (201) are arranged in several columns, and the "V" shape of each column of steel bars (201) forms an independent three-dimensional support (202). Several independent three-dimensional support (202) are used to open up a corresponding number of strip-shaped cloth bags. The reinforcing part (300) includes a reinforcing strip (301), the two ends of which are welded and fixed to the crossbeam (101), and the bottom of the reinforcing strip (301) is provided with a limiting member for limiting the reinforcing bar (201); the frame part (100) includes two parallel crossbeams (101) and an end frame (102) for closing the two ends of the two crossbeams (101). The limiting component includes a limiting block (302), on which a limiting groove (303) is provided. The limiting groove is located at the connection of two adjacent "V" shaped structures and is used to limit the sway of each row of steel bars (201) to ensure the overall structure is firm.

2. The support bracket for a bag filter in an IGCC gas turbine as described in claim 1, characterized in that: Both the crossbeam (101) and the end frame (102) are made of ∠20×20×2 angle steel. The length of the crossbeam (101) is 490mm and the length of the end frame (102) is 590mm.

3. The support bracket for a bag filter in an IGCC gas turbine as described in claim 2, characterized in that: The cross frame (101) and the end frame (102) are fixed together by welding.

4. The support bracket for a bag filter in an IGCC gas turbine as described in claim 3, characterized in that: The inner side of the "V"-shaped structure of the steel bars (201) in the same row is provided with reinforcing ribs (203) to increase the strength of the three-dimensional support frame (202).

5. The support bracket for a bag filter in an IGCC gas turbine as described in claim 4, characterized in that: The reinforcing ribs (203) are arranged symmetrically from top to bottom within the three-dimensional support frame (202).

6. The support bracket for a bag filter in an IGCC gas turbine as described in claim 5, characterized in that: The steel bar (201) and the reinforcing bar (203) are both made of high alloy steel bars, and the surface of the steel bar (201) and the reinforcing bar (203) is coated with a protective layer, which is made of polyaniline coating.

Images