Steam desuperheater mounting mechanism for boiler

Abstract

The invention discloses a steam desuperheater mounting mechanism for a boiler, and relates to steam desuperheater related equipment, the steam desuperheater mounting mechanism comprises a hoisting assembly and a limiting assembly, the limiting assembly comprises a bottom sleeve, the top of the bottom sleeve is fixedly connected with a fixing rod, the middle of the fixing rod is slidably connected with a side positioning rod, and the side positioning rod is fixedly connected with the bottom sleeve. One end of the side positioning rod is fixedly connected with a side positioning clamping sleeve, and the side positioning clamping sleeve is connected with a pipeline of the steam desuperheater in a clamped mode. The top of the fixed rod is slidably connected with a movable rod, and the top of the movable rod is fixedly connected with an upper positioning clamping sleeve. According to the limiting assembly, the upper positioning clamping sleeve is connected with one end of the bottom of the cooling pipe, and the side positioning clamping sleeve is connected with the bent side of the cooling pipe in a clamped mode, so that the two ends of the cooling pipe are supported, the overall posture of the steam desuperheater is maintained, the posture stability of the steam desuperheater in the hoisting process is effectively improved, and the hoisting efficiency of the steam desuperheater is improved. Therefore, the device can be conveniently installed and aligned with the steam pipe in a horizontal posture.

Description

Technical Field

[0001] The invention relates to steam desuperheater related equipment, in particular to a steam desuperheater installation mechanism for a boiler. Background Art

[0002] Steam desuperheater is a kind of equipment commonly used in energy-saving projects. The basic principle of this equipment is that the atomizing nozzle pressure-atomizes the desuperheating water and disperses it in the high-temperature steam airflow to achieve the desuperheating of the high-temperature steam.

[0003] This type of steam desuperheater structure generally includes a cooling pipe for conveying desuperheated water and various valve components thereon. During installation, the steam desuperheater needs to be moved and transported above the steam pipe. Due to the position of the center of gravity of the steam desuperheater itself, it is difficult to place it stably and steadily on the steam pipe, which brings great inconvenience to the installation operation. Therefore, the present application provides a steam desuperheater installation mechanism to solve this problem. Summary of the invention

[0004] The object of the present invention is to provide a steam desuperheater installation mechanism for a boiler, so as to solve the problem that the prior art steam desuperheater is difficult to be placed on the steam pipe in a stable and balanced manner, and is inconvenient to install and operate.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A steam desuperheater installation mechanism for a boiler comprises a lifting assembly and a limiting assembly for maintaining the position and posture of the steam desuperheater, the limiting assembly comprising a bottom sleeve, the top of the bottom sleeve is fixedly connected to a fixing rod, the middle of the fixing rod is slidably connected to a side positioning rod, one end of the side positioning rod is fixedly connected to a side positioning sleeve, and the side positioning sleeve is engaged with the pipeline of the steam desuperheater; the top of the fixing rod is slidably connected to a movable rod, the top of the movable rod is fixedly connected to an upper positioning sleeve, one side of the fixing rod is threadedly connected to a side positioning bolt for fixing the side positioning rod, and the middle of the fixing rod is threadedly connected to an upper positioning bolt for fixing the movable rod.

[0007] As a further solution of the present invention: a supporting roller is rotatably connected to the top of the inner wall of the bottom sleeve, and limiting rollers are rotatably installed on both sides of the inner wall of the bottom sleeve.

[0008] As a further solution of the present invention: a positioning magnet is arranged between the supporting roller and the limiting roller, the positioning magnet is fixedly connected to the inner wall of the bottom sleeve, and the supporting roller and the limiting roller are both arranged to protrude from the inner wall of the bottom sleeve.

[0009] As a further solution of the present invention: an upper clamping groove is provided on the top of the upper positioning sleeve, and a lifting buckle is fixedly connected to one side of the upper clamping groove.

[0010] As a further solution of the present invention: a plurality of positioning holes are opened in the middle of the side positioning rod, and a lifting ring is snap-connected in the middle of one of the positioning holes.

[0011] As a further solution of the present invention: the lifting assembly includes a lifting guide rail, a lifting seat plate is slidably installed on the inner wall of the lifting guide rail, linear motors are fixedly installed on both sides of the lifting seat plate, the output end of the linear motor is fixedly connected to an adjusting rod, one end of the adjusting rod is fixedly connected to an extension plate, and winding motors are fixedly installed inside the two extension plates, the output end of the winding motor is fixedly connected to a winding roller, the middle part of the winding roller is fixedly connected to a lifting rope, and the bottom of the lifting rope is fixedly connected to a lifting hook.

[0012] As a further solution of the present invention: a support assembly for supporting the lifting guide rail is provided at one end of the lifting guide rail, and the support assembly includes a column, a lifting hydraulic rod is fixedly installed in the middle of the column, the output end of the lifting hydraulic rod is fixedly connected to a mounting seat, a mounting sleeve is provided on the top of the mounting seat, and the middle part of the mounting sleeve is fixedly connected to the lifting guide rail.

[0013] As a further solution of the present invention: a steering motor is fixedly installed inside the mounting seat, a driving gear is fixedly connected to the output end of the steering motor, a tooth groove is formed on the inner wall of the mounting sleeve, and the driving gear is meshedly connected with the tooth groove.

[0014] As a further solution of the present invention: the bottom of the column is fixedly connected with a support frame.

[0015] As a further solution of the present invention: a method for installing a steam desuperheater for a boiler comprises the following steps:

[0016] Step 1: First, expand the limit assembly according to the size of the steam desuperheater:

[0017] Step 2: Assemble the unfolded limiter assembly and the steam desuperheater;

[0018] Step 3: Lift the limit assembly through the lifting assembly, and then lift the steam desuperheater;

[0019] Step 4: The steam desuperheater is moved to the installation position by the lifting assembly;

[0020] Step 5: Manually install the pipelines and accessories on the steam desuperheater;

[0021] Step 6: Separate the limit assembly from the steam desuperheater, and use the lifting assembly to move and reset the limit assembly.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the limit assembly of the present invention connects the upper positioning sleeve to one end of the bottom of the cooling pipe, and engages the side positioning sleeve to the bent side of the cooling pipe, thereby supporting the steam desuperheater as a whole by supporting both ends of the cooling pipe, and utilizing the vertical support formed by the fixed rod and the movable rod and other structures, in conjunction with the lateral support of the side positioning rod, effectively improving the posture stability of the steam desuperheater during the hoisting process, and facilitating its installation and alignment with the steam pipe in a horizontal posture;

[0023] The present invention provides a plurality of positioning holes on the side positioning rod, so that the positioning holes at appropriate positions can be selected to install the lifting collar according to the actual lifting situation, and the linear motor and the extension rod are arranged to adjust the distance between the two lifting hooks, so as to meet the lifting needs of steam desuperheaters of different sizes; the two winding motors can be controlled independently, so that the steam desuperheater can be kept horizontal during the lifting process by adjusting the lifting height of the two lifting hooks;

[0024] The lifting assembly of the present invention drives the mounting seat to rise and fall through the lifting hydraulic rod, and then drives the lifting guide rail to perform lifting and falling movements to meet the installation needs of steam desuperheaters at different heights; the mounting sleeve is driven to rotate through structures such as the adjustment motor, and then the lifting guide rail is driven to rotate, thereby meeting the lifting construction needs at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the working state of the present invention;

[0026] Figure 2 It is a front view of the installation state of the limit assembly of the present invention;

[0027] Figure 3 is a cross-sectional view of the bottom casing of the present invention;

[0028] Figure 4 is a side cross-sectional view of the movable rod of the present invention;

[0029] Figure 5 is a three-dimensional diagram of the lifting assembly of the present invention;

[0030] Figure 6 is a cross-sectional view of an extension plate of the present invention;

[0031] Figure 7 A cross-sectional view of the mounting base of the present invention

[0032] Figure 8 It is a structural front view of the steam desuperheater of the present invention;

[0033] Fig. 9 It is a flowchart of the installation method of the present invention.

[0034] In the figure: 101, steam pipe; 102, cooling pipe; 103, control valve; 104, check valve; 105, desuperheater; 2, limit assembly; 201, bottom casing; 2011, supporting roller; 2012, limit roller; 2013, positioning magnet; 202, side positioning rod; 203, positioning hole; 204, side positioning sleeve; 205, fixed rod; 206, movable rod; 207, upper positioning sleeve; 208, lifting buckle; 20 9. Side positioning bolt; 210. Upper positioning bolt; 211. Lifting ring; 3. Lifting assembly; 301. Lifting guide rail; 302. Lifting seat plate; 303. Extension plate; 304. Lifting rope; 305. Lifting hook; 306. Column; 307. Lifting hydraulic rod; 308. Mounting seat; 309. Support frame; 310. Mounting sleeve; 311. Winding motor; 312. Adjusting rod; 313. Adjusting motor; 314. Driving gear. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The steam desuperheater structure of the classic structure targeted by the present invention is as follows Figure 8 As shown, it is installed on a steam pipe 101 for conveying steam, and a desuperheater 105 is provided on the steam pipe 101. Cooling water is fed into the cooling pipe 102, and is sprayed out by a water spraying device provided in the desuperheater 105 and mixed with steam to achieve a desuperheating operation on the steam. The cooling pipe 102 is also provided with a control valve 103, a check valve 104 and other devices, which together constitute a steam desuperheater with a classic structure. During the installation process, this type of steam desuperheater will be in an inclined posture due to the center of gravity distribution of the devices thereon and its own structural characteristics. Conventional installation requirements often require that it be installed in a state where the cooling pipe 102 is parallel to the steam pipe 101, so it needs to be assisted by the installation mechanism provided by the present application, as follows:

[0037] See also Figure 1A steam desuperheater installation mechanism for a boiler includes a lifting assembly 3 and a limiting assembly 2 for maintaining the position and posture of the steam desuperheater. The limiting assembly 2 includes a bottom sleeve 201 for clamping with a steam pipe 101. A fixing rod 205 is fixedly connected to the top of the bottom sleeve 201. A side positioning rod 202 is slidably connected to the middle of the fixing rod 205. A side positioning sleeve 204 is fixedly connected to one end of the side positioning rod 202. The side positioning sleeve 204 is clamped and connected with the pipeline of the steam desuperheater; a movable rod 206 is slidably connected to the top of the fixing rod 205. An upper positioning sleeve 207 for clamping with the cooling pipe 102 is fixedly connected to the top of the movable rod 206; the present application connects the upper positioning sleeve 207 to one end of the bottom of the cooling pipe 102, and clamps the side positioning sleeve 204 to one side of the bending of the cooling pipe 102, so as to support the steam desuperheater as a whole by supporting both ends of the cooling pipe 102. The state of the limiting assembly 2 after installation is as follows Figure 2 As shown, the vertical support formed by the fixed rod 205 and the movable rod 206, in combination with the lateral support of the side positioning rod 202, effectively improves the posture stability of the steam desuperheater during the lifting process, making it easier to install and align it with the steam pipe 101 in a horizontal posture.

[0038] In order to fix the side positioning rod 202 after sliding adjustment, a side positioning bolt 209 for fixing the side positioning rod 202 is threadedly connected to one side of the fixed rod 205, and one end of the side positioning bolt 209 is in tight contact with the side positioning rod 202; in order to fix the movable rod 206 during sliding adjustment, an upper positioning bolt 210 for fixing the movable rod 206 is threadedly connected to the middle part of the fixed rod 205, and one end of the upper positioning bolt 210 is in tight contact with the outer wall of the movable rod 206.

[0039] See also Figure 3 In order to facilitate the parallel movement of the steam desuperheater and the limiting assembly 2 as a whole during the installation process, a supporting roller 2011 is rotatably connected to the top of the inner wall of the bottom sleeve 201, and limiting rollers 2012 are rotatably installed on both sides of the inner wall of the bottom sleeve 201. Through the contact between the supporting roller 2011, the limiting roller 2012 and the steam pipe 101, the resistance of the bottom sleeve 201 during the sliding movement along the steam pipe 101 is reduced.

[0040] To facilitate the docking between the bottom sleeve 201 and the steam pipe 101, a positioning magnet 2013 is arranged between the supporting roller 2011 and the limiting roller 2012. The positioning magnet 2013 is fixedly connected to the inner wall of the bottom sleeve 201. The supporting roller 2011 and the limiting roller 2012 are both arranged to protrude from the inner wall of the bottom sleeve 201, so as to avoid direct contact between the positioning magnet 2013 and the steam pipe 101 and avoid increased friction resistance.

[0041] See also Figure 4The top of the upper positioning sleeve 207 is provided with an upper clamping groove, and a lifting buckle 208 is fixedly connected to one side of the upper clamping groove. The lifting buckle 208 is used to clamp and support the cooling pipe 102 from below. The lifting buckle 208 is provided to facilitate the lifting work of the lifting assembly 3. Figure 1 A plurality of positioning holes 203 are provided in the middle of the side positioning rod 202, and a lifting ring 211 is snap-connected in the middle of one of the positioning holes 203. By providing a plurality of positioning holes 203, it is convenient to select the positioning holes 203 at appropriate positions according to the actual lifting conditions to install the lifting ring 211, so as to adapt to steam desuperheaters of different lengths.

[0042] See also Figure 5 and Figure 6 The lifting assembly 3 includes a lifting guide rail 301, and a lifting seat plate 302 is slidably installed on the inner wall of the lifting guide rail 301. The lifting seat plate 302 is driven to move horizontally by the lifting guide rail 301, thereby driving the lifted steam desuperheater to move horizontally. Linear motors are fixedly installed on both sides of the lifting seat plate 302. An adjusting rod 312 is fixedly connected to the output end of the linear motor. An extension plate 303 is fixedly connected to one end of the adjusting rod 312. The extension plate 303 is driven by the linear motor to move, so as to adjust the distance between the two lifting hooks 305, so as to meet the lifting needs of steam desuperheaters of different sizes.

[0043] In order to realize the lifting action of the lifting hook 305, a winding motor 311 is fixedly installed inside the two extension plates 303, the output end of the winding motor 311 is fixedly connected to the winding roller, the middle of the winding roller is fixedly connected to the lifting rope 304, and the bottom of the lifting rope 304 is fixedly connected to the lifting hook 305. The two winding motors 311 can be controlled independently, so that the steam desuperheater can be kept level during the lifting process by adjusting the lifting height of the two lifting hooks 305.

[0044] See also Figure 5 In order to ensure that the position of the lifting guide rail 301 meets the lifting requirements, a support assembly for supporting the lifting guide rail 301 is provided at one end of the lifting guide rail 301, and the support assembly includes a column 306, and a lifting hydraulic rod 307 is fixedly installed in the middle of the column 306, and a mounting seat 308 is fixedly connected to the output end of the lifting hydraulic rod 307. A mounting sleeve 310 is provided on the top of the mounting seat 308, and the middle part of the mounting sleeve 310 is fixedly connected to the lifting guide rail 301. The mounting seat 308 is driven to rise and fall by the lifting hydraulic rod 307, and then the lifting guide rail is driven to perform lifting and falling movements to meet the installation needs of steam desuperheaters at different heights.

[0045] See also Figure 7Due to the space limitation in the actual installation process, the installation mechanism often cannot be freely arranged and expanded. In the present application, a steering motor 313 is fixedly installed inside the mounting seat 308, and a driving gear 314 is fixedly connected to the output end of the steering motor 313. A tooth groove is provided on the inner wall of the mounting sleeve 310, and the driving gear 314 is meshed with the tooth groove. The mounting sleeve 310 is driven to rotate by the steering motor 313 and other structures, and then the lifting guide rail 301 is driven to rotate, so as to meet the lifting construction needs at different angles. By adjusting the rotation of the lifting guide rail 301, the space requirement for the workplace is reduced. In order to improve the stability during the lifting process, a support frame 309 is fixedly connected to the bottom of the column 306.

[0046] See also Fig. 9 When the present invention is used, the limiting assembly 2 is first unfolded according to the size of the steam desuperheater, that is, the upper positioning bolt 210 and the side positioning bolt 209 are first loosened by turning, and then the side positioning rod 202 is slid to clamp the side positioning sleeve 204 with the lower bending section of the cooling pipe 102, and then the movable rod 206 is slid to clamp the upper positioning sleeve 207 with the other end of the cooling pipe 102, and then the upper positioning bolt 210 and the side positioning bolt 209 are tightened to fix the side positioning rod 202 and the movable rod 206; then the positioning hole 203 at a suitable position is selected, and the lifting ring 211 is clamped with it; the installation combination with the steam desuperheater is completed; the state is as follows Figure 2 ;

[0047] The two lifting hooks 305 are respectively engaged with the lifting ring 211 and the lifting buckle 208, and then the winding motor 311 drives the winding roller to rotate, drives the lifting rope to be wound, lifts the hook, and then lifts the steam desuperheater. The lifting height of the two hooks is controlled by the two winding motors 311, so that the steam in the steam desuperheater is kept horizontal;

[0048] Then, the lifting guide rail 301 drives the lifting seat plate 302 to move horizontally, and the lifting hydraulic rod 307 drives the lifting guide rail 301 to rotate, and the adjustment motor 313 drives the installation sleeve 310 and the lifting guide rail 301 to rotate, so as to adjust the position of the lifting seat plate 302, thereby driving the steam desuperheater to move to the installation position as a whole;

[0049] After moving to the installation position, the bottom sleeve 201 is clamped with the steam pipe 101, and the steam desuperheater is pushed horizontally along the direction of the steam pipe 101, and the bent end of the cooling pipe 102 is aligned with the desuperheater box 105, and then the management interfaces and other auxiliary instrument components thereon are connected and installed manually; after the installation is completed, the side positioning sleeve 204 and the upper positioning sleeve 207 are separated from the steam desuperheater, and the lifting assembly 3 drives the limit assembly 2 to move and reset.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A steam desuperheater installation mechanism for a boiler, characterized in that: The invention comprises a lifting assembly (3) and a limiting assembly (2) for maintaining the position and posture of a steam desuperheater, wherein the limiting assembly (2) comprises a bottom sleeve (201), the top of the bottom sleeve (201) is fixedly connected to a fixing rod (205), the middle of the fixing rod (205) is slidably connected to a side positioning rod (202), one end of the side positioning rod (202) is fixedly connected to a side positioning sleeve (204), and the side positioning sleeve (204) is engaged with the pipeline of the steam desuperheater; the top of the fixing rod (205) is slidably connected to a movable rod (206), and the top of the movable rod (206) is fixedly connected to an upper positioning sleeve (207).

2. A boiler steam desuperheater installation mechanism according to claim 1, characterized in that: The top of the inner wall of the bottom sleeve (201) is rotatably connected to a supporting roller (2011), and both sides of the inner wall of the bottom sleeve (201) are rotatably mounted with limiting rollers (2012).

3. A boiler steam desuperheater installation mechanism according to claim 2, characterized in that: A positioning magnet (2013) is provided between the supporting roller (2011) and the limiting roller (2012), and the positioning magnet (2013) is fixedly connected to the inner wall of the bottom sleeve (201).

4. A boiler steam desuperheater installation mechanism according to claim 1, characterized in that: An upper clamping groove is provided on the top of the upper positioning clamping sleeve (207), and a lifting buckle (208) is fixedly connected to one side of the upper clamping groove.

5. The installation mechanism of a steam desuperheater for a boiler according to claim 1, characterized in that: A plurality of positioning holes (203) are provided in the middle of the side positioning rod (202), wherein a lifting ring (211) is snap-connected in the middle of one of the positioning holes (203).

6. A boiler steam desuperheater installation mechanism according to claim 1, characterized in that: The lifting assembly (3) comprises a lifting guide rail (301), a lifting seat plate (302) being slidably mounted on the inner wall of the lifting guide rail (301), a linear motor being fixedly mounted on both sides of the lifting seat plate (302), an adjusting rod (312) being fixedly connected to the output end of the linear motor, an extension plate (303) being fixedly connected to one end of the adjusting rod (312), a winding motor (311) being fixedly mounted inside the two extension plates (303), a winding roller being fixedly connected to the output end of the winding motor (311), a lifting rope (304) being fixedly connected to the middle of the winding roller, and a lifting hook (305) being fixedly connected to the bottom of the lifting rope (304).

7. A boiler steam desuperheater installation mechanism according to claim 6, characterized in that: A support assembly for supporting the lifting guide rail (301) is provided at one end of the lifting guide rail (301), and the support assembly includes a column (306), a lifting hydraulic rod (307) is fixedly installed in the middle of the column (306), an output end of the lifting hydraulic rod (307) is fixedly connected to a mounting seat (308), a mounting sleeve (310) is provided on the top of the mounting seat (308), and the middle part of the mounting sleeve (310) is fixedly connected to the lifting guide rail (301).

8. A boiler steam desuperheater installation mechanism according to claim 7, characterized in that: A direction adjustment motor (313) is fixedly installed inside the mounting seat (308), and a driving gear (314) is fixedly connected to the output end of the direction adjustment motor (313). A tooth groove is formed on the inner wall of the mounting sleeve (310), and the driving gear (314) is meshedly connected with the tooth groove.

9. A boiler steam desuperheater installation mechanism according to claim 7, characterized in that: The bottom of the column (306) is fixedly connected to a support frame (309).

10. A boiler steam desuperheater installation mechanism according to any one of claims 1 to 9, characterized in that: The method for using the installation mechanism comprises the following steps: Step 1: First, expand the limit assembly (2) according to the size of the steam desuperheater: Step 2: Assemble the unfolded limiter assembly (2) and the steam desuperheater; Step 3: Lift the limit assembly (2) through the lifting assembly (3), and then lift the steam desuperheater; Step 4: The steam desuperheater is moved to the installation position by the lifting assembly (3); Step 5: Manually install the pipelines and accessories on the steam desuperheater; Step 6: Separate the limit assembly (2) from the steam desuperheater, and use the lifting assembly (3) to drive the limit assembly (2) to move and reset.

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