CN217402588U

CN217402588U - Simple repairing device for nonmetal skin of flue in operation of power plant boiler unit

Info

Publication number: CN217402588U
Application number: CN202220631727.XU
Authority: CN
Inventors: 侯志国
Original assignee: Huaneng International Power Jiangsu Energy Development Co Ltd; Nanjing Power Plant of Huaneng International Power Jiangsu Energy Development Co Ltd
Current assignee: Huaneng International Power Jiangsu Energy Development Co Ltd; Nanjing Power Plant of Huaneng International Power Jiangsu Energy Development Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-09-09
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a simple and easy prosthetic devices that is arranged in power plant's boiler unit nonmetal covering of flue in service relates to nonmetal covering repair equipment technical field, including pressing from both sides tight repair mechanism, the equal movable sleeve in both ends of fixed plate is equipped with the extension rod, and the one end that the fixed plate was kept away from to the extension rod is connected with the splint of bending, and the splint of bending is provided with two sets of and only a set of bottom of bending splint relatively and installs the thread bush, and the inboard of thread bush has locking bolt through screw thread swing joint. The device comprises high strength anchor clamps system and covering layering that can revolve, can reach the effect of restoreing the damaged covering of flue under the unit condition of not stopping transport, ensures the unit steady operation, treats to possess thoroughly change behind the condition and handles, and convenient and fast installs nonmetal covering spare part in damaged position, reaches temporary restoration purpose, ensures the operation of unit safety and stability, provides the condition for the permanent change of later stage off-stream back nonmetal covering.

Description

Simple repairing device for nonmetal skin of flue in operation of power plant boiler unit

Technical Field

The utility model relates to a nonmetal covering repair equipment technical field, especially a simple and easy prosthetic devices that is arranged in power plant's boiler unit operation nonmetal covering of flue.

Background

The whole flue at the tail part of the power plant boiler is of a carbon steel frame structure, and because the temperature of flue gas is 90-110 ℃, in order to compensate axial, transverse and angular displacements of the flue, nonmetal skins are usually arranged at intervals of the flue, and nonmetal skins are made of fiber fabrics, rubber, high-temperature-resistant materials and the like and are fixed on a flue welding flange by pressing strips and bolts. As the flue conveying medium contains a large amount of acid gas and hard ash particles, the flow rate of the flue is high, the flue and corresponding parts can be strongly corroded and abraded, particularly, the flexible non-metal skin body is easy to age and damage or the bolts and the pressing strips are corroded and broken, the flue leakage is generated to cause environmental pollution, and the safe and stable operation of a unit is seriously influenced. Especially in the special power-preserving stages such as peak-meeting summer, the unit does not have the condition of outage. When the unit operates, the gas pressure in the flue can reach 2-3KPa, and the original old bolt and the old pressing strip can not be removed under the action of pressure to achieve the purpose of replacing the new skin.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of above-mentioned and/or current power plant boiler unit in service flue nonmetal skin repair in the problem that exists, provided the utility model discloses.

Therefore, the utility model aims to solve the problem of how to provide a simple and easy prosthetic devices who is arranged in power boiler unit operation flue nonmetal covering.

In order to solve the technical problem, the utility model provides a following technical scheme: a simple repairing device for a non-metallic skin of a flue in the operation of a power plant boiler unit, which comprises,

press from both sides tight repair body, it includes the fixed plate, the splint of bending, locking bolt, twist grip, covering layering and compresses tightly the subassembly, the equal movable sleeve in both ends of fixed plate is equipped with the extension rod, the one end that the fixed plate was kept away from to the extension rod is connected with the splint of bending, the splint of bending is provided with two sets ofly and only a set of relatively the threaded bush is installed to the bottom of the splint of bending, threaded bush's inboard has locking bolt through screw thread swing joint.

Based on the technical characteristics: the device consists of a high-strength rotatable clamp system and a skin pressing strip, can achieve the effect of repairing damaged skins of a flue under the condition that a unit is not stopped, ensures stable operation of the unit, can be completely replaced after conditions are met, can realize that the unit is stopped and the flue is kept under the pressure of 2-3MPa, conveniently and quickly installs a non-metal skin spare part on a damaged part to achieve the purpose of temporary repair, ensures safe and stable operation of the unit, provides conditions for permanent replacement of the non-metal skin after later-stage shutdown, needs to adopt the high-strength rotatable clamp system and the skin pressing strip to match the non-metal skin spare part to fix the non-metal skin spare part for rooting from the non-leakage part when repairing the damaged non-metal skin, then adopts the high-strength rotatable clamp to fix the skin to a leakage area step by step at intervals of 10-20cm, and finally achieves the purpose of repairing the leakage part.

As a simple and easy prosthetic devices's an optimal selection scheme for non-metallic covering of flue of power plant's boiler unit in service, wherein: one end of the locking bolt is provided with a rotating handle, and the rotating handle penetrates through the locking bolt and only one end of the rotating handle is provided with a blocking ball piece.

Based on the technical characteristics: the hole is formed in the locking bolt according to the diameter of the rotating handle, the rotating handle is installed on the locking bolt, the locking bolt penetrates through the threaded sleeve, and when the rotating handle is rotated, the locking bolt can move back and forth, so that the purpose of tightening or loosening the non-metal skin spare part is achieved.

As a simple and easy prosthetic devices's an optimal selection scheme for non-metallic covering of flue of power plant's boiler unit in service, wherein: the skin layering is attached to the non-metal skin spare part, and a positioning hole for the locking bolt to penetrate through is formed in the surface of the skin layering.

Based on the technical characteristics: the skin layering can press on nonmetal skin spare part, and can make the one end of locking bolt pass the locating hole and compress tightly and fix nonmetal skin spare part when the installation.

As a simple and easy prosthetic devices's an optimal selection scheme for non-metallic covering of flue of power plant's boiler unit in service, wherein: the skin layering adopts ordinary carbon steel sheet, and is flat iron form, and thickness is greater than 6 mm.

Based on the technical characteristics: the skin layering of carbon steel sheet can be durable, and can press and hold non-metal skin spare part.

As a simple and easy prosthetic devices's an optimal scheme for non-metallic covering of power plant's boiler unit in-service flue, wherein: and a positioner is fixedly arranged in the inner cavity of the fixing plate, and two ends of the positioner are provided with telescopic springs.

Based on the technical characteristics: the locator is fixed in the inner cavity of the fixed plate, and the extension spring can be freely stretched or contracted when being installed.

As a simple and easy prosthetic devices's an optimal scheme for non-metallic covering of power plant's boiler unit in-service flue, wherein: one end of the extension rod, which is far away from the bending clamping plate, extends into the inner cavity of the fixing plate and is fixedly connected with the telescopic spring.

Based on the technical characteristics: when the fixed plate is installed, the fixed plate is erected on the flue welding flange, the bending clamping plates are pulled to two ends according to the thickness of the flue welding flange, and the extension rod can extend outwards and the extension spring is stretched.

As a simple and easy prosthetic devices's an optimal scheme for non-metallic covering of power plant's boiler unit in-service flue, wherein: the inner sides of the group of bending clamping plates close to the threaded sleeve are provided with the clamping devices, and the clamping devices and the threaded sleeve are located on the same side.

Based on the technical characteristics: the clamp holder is used for clamping and fixing one side of the flue welding flange when the fixing plate is installed.

As a simple and easy prosthetic devices's an optimal scheme for non-metallic covering of power plant's boiler unit in-service flue, wherein: and the inner sides of the group of bending clamping plates far away from the clamp holder are fixedly provided with a pressing assembly, and the pressing assembly comprises a support plate, a pushing plate, a movable plate and a compression spring rod.

Based on the technical characteristics: the compressing assembly can be matched with the clamp holder to be used and clamp the two sides of the flue welding flange, and the fixing plate and the bending clamp plate are conveniently fixed.

As a simple and easy prosthetic devices's an optimal scheme for non-metallic covering of power plant's boiler unit in-service flue, wherein: the surface activity of support plate articulates there are two sets of first support arms, the one end and the bulldozing board of first support arm are articulated, bulldoze the board and be provided with two sets ofly and be connected with the compression spring pole between two sets of bulldozing boards relatively.

Based on the technical characteristics: the two groups of pushing plates can elastically deform the compression spring rods in the process of approaching or departing from each other.

As a simple and easy prosthetic devices's an optimal selection scheme for non-metallic covering of flue of power plant's boiler unit in service, wherein: the inner side of the pushing plate is movably hinged with a second support arm, one end, far away from the pushing plate, of the second support arm is hinged with a movable plate, and an elastic clamping base plate is mounted on the surface of the movable plate.

Based on the technical characteristics: the elastic clamping base plate is attached to the outer wall of one side of the flue welding flange tightly, the clamping force on the flue welding flange is improved through the elastic force generated after the compression spring rod deforms, and the fixed plate and the bending clamping plate are prevented from shaking in the using process to cause falling as far as possible.

The utility model has the advantages that the device consists of a high-strength rotatable clamp system and a skin pressing strip, can achieve the effect of repairing the damaged skin of the flue under the condition that the unit is not stopped, ensures the stable operation of the unit, can be completely replaced and processed after the condition is met, can realize the shutdown of the unit and the maintenance of the flue under the pressure of 2-3MPa, conveniently and quickly install the non-metal skin spare parts at the damaged part to achieve the temporary repairing purpose, ensures the safe and stable operation of the unit, provides the condition for the permanent replacement of the non-metal skin after the shutdown in the later period, needs to adopt the high-strength rotatable clamp system and the skin pressing strip to match the non-metal skin spare parts at the non-leakage part to fix the skin to root, then adopts the high-strength rotatable clamp to fix the skin to the leakage area step by step at intervals of 10-20cm, and finally realizes the repairing purpose of the leakage part, the elastic clamping base plate is attached to the outer wall of one side of the flue welding flange tightly, the clamping force on the flue welding flange is improved through the elastic force generated after the compression spring rod deforms, and the fixed plate and the bending clamping plate are prevented from shaking in the using process to cause falling as far as possible.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is an overall installation state diagram of a simple repair device for a flue non-metal skin in operation of a power plant boiler unit;

FIG. 2 is a partial cross-sectional structural view of a simple repair device for a non-metal skin of a flue in operation of a power plant boiler unit;

FIG. 3 is a concrete structure diagram of a pressing assembly of the simple repairing device for the nonmetal skin of the flue in the operation of the power plant boiler unit.

In the drawings, the reference numbers indicate the following list of parts:

100. a clamping repair mechanism; 101. a fixing plate; 101a, an extension rod; 101b, a positioner; 101b-1, a telescopic spring; 102. bending the clamping plate; 102a, a threaded sleeve; 102b, a gripper; 103. locking the bolt; 104. rotating the handle; 104a, a blocking ball element; 105. skin layering; 105a, positioning holes; 106. a compression assembly; 106a, a carrier plate; 106a-1, a first support arm; 106b, a push plate; 106b-1, a second support arm; 106c, a movable plate; 106c-1, an elastic clamping backing plate; 106d, compression spring rods.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other ways of implementing the invention may be devised different from those described herein, and it will be apparent to those skilled in the art that the invention can be practiced without departing from the spirit and scope of the invention.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, a first embodiment of the present invention provides a simple repair device for a non-metallic skin of a flue in operation of a power plant boiler unit, including,

The clamping repair mechanism 100 comprises a fixing plate 101, a bending clamping plate 102, a locking bolt 103, a rotating handle 104, a skin pressing strip 105 and a pressing assembly 106, wherein the skin pressing strip 105 is attached to a non-metal skin spare part, a positioning hole 105a for the locking bolt 103 to penetrate through is formed in the surface of the skin pressing strip 105, the skin pressing strip 105 can be pressed on the non-metal skin spare part, and one end of the locking bolt 103 can penetrate through the positioning hole 105a and press and fix the non-metal skin spare part during installation.

The skin layering 105 is made of ordinary carbon steel sheets, is flat iron and is larger than 6mm in thickness, the skin layering 105 made of the carbon steel sheets can be durable in use, and non-metal skin spare parts can be pressed and held.

The device comprises a high-strength rotatable clamp system and a skin pressing bar 105, can achieve the effect of repairing the damaged skin of a flue under the condition that the unit is not stopped, ensure the stable operation of the unit, completely replace the unit after the unit has the conditions, realize that the unit is stopped and the flue keeps the pressure of 2-3MPa, conveniently and quickly install the non-metal skin spare parts at the damaged part to achieve the aim of temporary repair, ensure the safe and stable operation of the unit, provide the conditions for permanently replacing the non-metal skin after the unit is stopped in the later period, and when the damaged non-metal skin is repaired, the non-metal skin spare parts are fixed to root by adopting a high-strength rotatable clamp system to be matched with the skin pressing strips 105 from the non-leakage part, then the non-metal skin is gradually fixed to the leakage area by adopting the high-strength rotatable clamp system every 10-20cm, and finally the purpose of repairing the leakage part is achieved.

One end of the locking bolt 103 is provided with a rotating handle 104, the rotating handle 104 penetrates through the locking bolt 103, only one end of the rotating handle 104 is provided with a blocking ball piece 104a, a hole is formed in the locking bolt 103 according to the diameter size of the rotating handle 104, the rotating handle 104 is arranged on the locking bolt 103, the locking bolt 103 penetrates through the threaded sleeve 102a, when the rotating handle 104 is rotated, the locking bolt 103 can move back and forth, and the purpose of tightening or loosening the non-metal skin spare part is achieved.

Example 2

Referring to fig. 2, a second embodiment of the present invention is different from the first embodiment in that: a locator 101b is fixedly arranged in the inner cavity of the fixing plate 101, extension springs 101b-1 are arranged at two ends of the locator 101b, the locator 101b is fixed in the inner cavity of the fixing plate 101, and the extension springs 101b-1 can be freely stretched or contracted when being installed.

One end of the extension rod 101a, which is far away from the bending clamp plate 102, extends into the inner cavity of the fixing plate 101 and is fixedly connected with the extension spring 101b-1, when the fixing plate 101 is installed, the fixing plate 101 can be erected on the flue welding flange, and the bending clamp plate 102 is pulled towards two ends according to the thickness of the flue welding flange, so that the extension rod 101a can extend outwards and the extension spring 101b-1 is extended.

A clamp 102b is arranged on the inner side of the group of bent clamping plates 102 close to the threaded sleeve 102a, the clamp 102b is positioned on the same side as the threaded sleeve 102a, and the clamp 102b is used for clamping and fixing one side of the flue welding flange when the fixing plate 101 is installed.

Example 3

Referring to fig. 3, a third embodiment of the present invention is different from the first two embodiments: and a pressing assembly 106 is fixedly arranged on the inner side of the group of bending clamping plates 102 far away from the clamp 102b, the pressing assembly 106 comprises a support plate 106a, a pushing plate 106b, a movable plate 106c and a compression spring rod 106d, the pressing assembly 106 can be matched with the clamp 102b to be used for clamping two sides of the flue welding flange, and the fixing plate 101 and the bending clamping plates 102 are conveniently fixed.

Two groups of first support arms 106a-1 are movably hinged on the surface of the support plate 106a, one end of each first support arm 106a-1 is hinged with the pushing plate 106b, the pushing plates 106b are oppositely arranged, two groups of compressing spring rods 106d are connected between the two groups of pushing plates 106b, and the two groups of pushing plates 106b can make the compressing spring rods 106d generate elastic deformation in the process of mutually approaching or departing.

The inner side of the pushing plate 106b is movably hinged with a second support arm 106b-1, one end, far away from the pushing plate 106b, of the second support arm 106b-1 is hinged with a movable plate 106c, an elastic clamping base plate 106c-1 is mounted on the surface of the movable plate 106c, the elastic clamping base plate 106c-1 is attached to the outer wall of one side of the flue welding flange, the clamping force on the flue welding flange is improved through the elastic force generated after the compression spring rod 106d is deformed, and the fixed plate 101 and the bending clamp plate 102 are prevented from shaking to fall off as much as possible in the using process.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and 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 can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a simple and easy prosthetic devices that is arranged in power boiler unit operation flue non-metal covering which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

press from both sides tight repair body (100), it includes fixed plate (101), splint (102), locking bolt (103), twist grip (104), covering layering (105) and compresses tightly subassembly (106) bend, the both ends of fixed plate (101) are all movable to overlap and are equipped with extension rod (101a), the one end that fixed plate (101) were kept away from in extension rod (101a) is connected with splint (102) of bending, splint (102) of bending are provided with two sets ofly and only a set of relatively threaded sleeve (102a) are installed to the bottom of splint (102) of bending, the inboard of threaded sleeve (102a) has locking bolt (103) through screw thread swing joint.

2. The simple repair device for the nonmetal skin of the flue in the operation of the power plant boiler unit is characterized in that: one end of the locking bolt (103) is provided with a rotating handle (104), and the rotating handle (104) penetrates through the locking bolt (103) and only one end of the rotating handle (104) is provided with a blocking ball piece (104 a).

3. The simple repair device for the nonmetal skin of the flue in the operation of the power plant boiler unit is characterized in that: the skin trim strip (105) is attached to the non-metal skin spare part, and a positioning hole (105a) for the locking bolt (103) to penetrate through is formed in the surface of the skin trim strip (105).

4. The simple repair device for the non-metal skin of the flue in the operation of the power plant boiler unit as claimed in claim 2 or 3, characterized in that: the skin pressing strip (105) is made of a common carbon steel sheet, is flat iron-shaped and is larger than 6mm in thickness.

5. The simple repair device for the nonmetal skin of the flue in the operation of the power plant boiler unit is characterized in that: the inner cavity of the fixing plate (101) is fixedly provided with a positioner (101b), and two ends of the positioner (101b) are respectively provided with a telescopic spring (101 b-1).

6. The simple repair device for the nonmetal skin of the flue in the operation of the power plant boiler unit is characterized in that: one end of the extension rod (101a), which is far away from the bending clamping plate (102), extends into an inner cavity of the fixing plate (101) and is fixedly connected with the telescopic spring (101 b-1).

7. The simple repairing device for the non-metal skin of the flue in the operation of the power plant boiler unit as set forth in claim 6, characterized in that: a clamp (102b) is arranged on the inner side of the group of bending clamping plates (102) close to the threaded sleeve (102a), and the clamp (102b) is located on the same side as the threaded sleeve (102 a).

8. The simple repairing device for the non-metal skin of the flue in the operation of the power plant boiler unit as set forth in claim 7, characterized in that: and a pressing component (106) is fixedly arranged on the inner side of the group of bent clamping plates (102) far away from the clamper (102b), and the pressing component (106) comprises a carrier plate (106a), a pushing plate (106b), a movable plate (106c) and a compression spring rod (106 d).

9. The simple repair device for the nonmetal skin of the flue in the operation of the power plant boiler unit is as set forth in claim 8, characterized in that: the surface of the carrier plate (106a) is movably hinged with two groups of first support arms (106a-1), one end of each first support arm (106a-1) is hinged with a pushing plate (106b), the pushing plates (106b) are oppositely arranged with two groups, and a compression spring rod (106d) is connected between the two groups of pushing plates (106 b).

10. The simple repair device for the non-metal skin of the flue in the operation of the power plant boiler unit as claimed in claim 8 or 9, wherein: the inner side of the pushing plate (106b) is movably hinged with a second support arm (106b-1), one end, far away from the pushing plate (106b), of the second support arm (106b-1) is hinged with a movable plate (106c), and an elastic clamping cushion plate (106c-1) is mounted on the surface of the movable plate (106 c).