Special wrench for disassembling and assembling manhole of pressure-bearing container of supercharged boiler

Abstract

The invention relates to a special wrench for dismounting and mounting a manhole of a pressure-bearing container of a supercharged boiler, in particular to a special wrench for dismounting and mounting a manhole device of the pressure-bearing container of the supercharged boiler, and aims to quickly dismount and mount the manhole device of the pressure-bearing container of the supercharged boiler. The wrench head is installed at one end of the wrench head connecting pipe, a wrench stress application rod containing hole is machined in the wrench head connecting pipe, and the wrench stress application rod is arranged in the wrench stress application rod containing hole. The invention belongs to the field of marine boiler maintenance.

Description

Technical Field

[0001] The invention relates to a special wrench for disassembling and assembling a manhole, in particular to a special wrench for disassembling and assembling a manhole of a pressure-bearing container of a boosted boiler. The invention belongs to the field of marine boiler maintenance. Background Art

[0002] A supercharged boiler, also called a pressure combustion boiler or a positive pressure boiler, is a new type of boiler in which the fuel in the furnace is mixed with air and burned at a higher pressure. The combustion efficiency and heat transfer intensity are greater than those of ordinary boilers, and the furnace volume and heating surface can be greatly reduced. It has the advantages of small size, light weight, saving steel and short startup time. It is generally used on ships.

[0003] The manhole device of the marine pressurized boiler pressure vessel is a component of the pressurized boiler pressure vessel. The internal structure of the pressurized boiler pressure vessel is relatively complex. It is necessary to regularly open the manhole device of the pressure vessel to enter the pressure vessel for maintenance, inspection or repair of internal equipment. In order to quickly disassemble and install the manhole device of the pressurized boiler pressure vessel, a special tool is required. Summary of the invention

[0004] The purpose of the present invention is to enable rapid disassembly and installation of a manhole device of a pressure vessel of a pressurized boiler, and further to provide a special wrench for disassembly and installation of the manhole of the pressure vessel of a pressurized boiler.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] A special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler, comprising a wrench head, a wrench head connecting pipe and a wrench force rod;

[0007] The wrench head is installed on one end of the wrench head connecting pipe. A wrench force rod placement hole is processed on the wrench head connecting pipe. The wrench force rod is arranged in the wrench force rod placement hole.

[0008] Furthermore, the wrench head is a cylindrical head, one end of the cylindrical head is processed with a countersunk hole, the end face of the cylindrical head is processed with a hexagonal groove, and the other end of the cylindrical head is connected to the wrench head connecting pipe.

[0009] Furthermore, the wrench head connecting tube is a circular tube body, and one end of the circular tube body is fixedly connected to the other end of the cylindrical head.

[0010] Furthermore, two circular through holes are processed at the other end of the circular tube body, and the center line of each circular through hole is perpendicular to the center line of the circular tube body, and the center lines of the two circular through holes are perpendicular.

[0011] Furthermore, the wrench force rod is a cylindrical rod body, and the cylindrical rod body is arranged in any circular through hole on the wrench head connecting pipe.

[0012] Furthermore, the diameter of the wrench force rod is smaller than the hole diameter of the circular through hole.

[0013] Furthermore, the outer diameter of the cylindrical head is greater than the outer diameter of the wrench head connecting pipe.

[0014] Beneficial effects of the present invention:

[0015] 1. The present invention can Figure 3 The manhole cover 11 of the pressure vessel of the pressure vessel of the booster boiler is disassembled and installed. The wrench head 1 for disassembly and assembly in the present application is a plum blossom-shaped structure. The wrench head 1 for disassembly and assembly is sleeved on the outside of the nut 13. By turning the wrench force rod 3 counterclockwise, the bolt 12 and the nut 13 can be disassembled. After disassembly, the manhole cover can be opened to enter the pressure vessel for maintenance or replacement. The special wrench of the present application can quickly disassemble and install the manhole device of the pressure vessel of the booster boiler.

[0016] Second, since the manhole device of the pressure vessel of the pressurized boiler is located deep, it is difficult to disassemble and install. The special wrench for disassembly and assembly of the present invention selects a wrench head connecting pipe 2 with a suitable length, increases the length of the wrench force rod 3, and allows the wrench head 1 to be sleeved on the nut 13. Therefore, the manhole cover can be quickly disassembled and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this application.

[0018] Figure 2 It is a side view of the wrench head 1 of the present application.

[0019] Figure 3 The figure is a schematic diagram of a manhole device for a pressure vessel of a pressurized boiler, which includes a manhole cover 11, bolts 12 and nuts 13. DETAILED DESCRIPTION

[0020] Specific implementation method 1: Combination Figure 1 and Figure 2 The present embodiment is described as follows. The present embodiment is a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler, which comprises a wrench head 1, a wrench head connecting pipe 2 and a wrench force rod 3;

[0021] The wrench head 1 is mounted on one end of a wrench head connecting pipe 2. A wrench force rod placement hole is processed on the wrench head connecting pipe 2. The wrench force rod 3 is arranged in the wrench force rod placement hole.

[0022] In this embodiment, the wrench force rod 3 rotates to drive the wrench head connecting pipe 2 to rotate, thereby driving the wrench head 1 to rotate, and the manhole cover 11 of the pressure vessel of the pressurized boiler is disassembled and installed through the wrench head 1.

[0023] Specific implementation method 2: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment is a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler. The wrench head 1 is a cylindrical head, one end of the cylindrical head is processed with a countersunk hole, the end face of the cylindrical head is processed with a plum blossom groove, and the other end of the cylindrical head is connected to the wrench head connecting pipe 2. Other methods are the same as those of the first specific embodiment.

[0024] In this embodiment, the nut 13 is sleeved by the hexagram socket, and the nut 13 is driven to rotate on the bolt 12 by the wrench head 1.

[0025] Specific implementation method three: Combination Figure 1 This embodiment is described as a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler. The wrench head connecting pipe 2 is a circular tube body, and one end of the circular tube body is fixedly connected to the other end of the cylindrical head. Other methods are the same as those of the second embodiment.

[0026] Specific implementation method four: Combination Figure 1 This embodiment is described. In this embodiment, a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler is provided. Two circular through holes are processed at the other end of the circular tube. The center line of each circular through hole is perpendicular to the center line of the circular tube, and the center lines of the two circular through holes are perpendicular. Other methods are the same as those of the third embodiment.

[0027] In this embodiment, the wrench force rod 3 is arranged on the circular through hole, and the wrench force rod 3 can be adjusted in the corresponding circular through hole according to the requirements and position during use, so that the disassembly and installation of the manhole cover 11 of the pressure vessel of the pressurized boiler is more convenient.

[0028] Specific implementation method five: Combination Figure 1 This embodiment describes a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler, wherein the wrench force rod 3 is a cylindrical rod body, and the cylindrical rod body is arranged in any circular through hole on the wrench head connecting pipe 2. Other methods are the same as those of the fourth embodiment.

[0029] Specific implementation method six: Combination Figure 1 This embodiment is described as a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler, wherein the diameter of the wrench force rod 3 is smaller than the diameter of the circular through hole. Other methods are the same as those of the fifth embodiment.

[0030] Specific implementation method seven: Combination Figure 1 and Figure 2 This embodiment is described as follows: the cylindrical head of a special wrench for disassembling and assembling a manhole of a pressure vessel of a pressurized boiler has an outer diameter greater than the outer diameter of the wrench head connecting pipe 2. Other methods are the same as those of the third embodiment.

[0031] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler, characterized in that: It comprises a wrench head (1), a wrench head connecting pipe (2) and a wrench force rod (3); The wrench head (1) is mounted on one end of a wrench head connecting pipe (2). A wrench force rod placement hole is machined on the wrench head connecting pipe (2), and the wrench force rod (3) is arranged in the wrench force rod placement hole.

2. According to claim 1, a special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler, characterized in that: The wrench head (1) is a cylindrical head, one end of which is processed with a countersunk hole, the end surface of which is processed with a hexagonal groove, and the other end of which is connected to the wrench head connecting pipe (2).

3. According to claim 2, a special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler, characterized in that: The wrench head connecting tube (2) is a circular tube body, one end of which is fixedly connected to the other end of the cylindrical head.

4. The special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler according to claim 3, characterized in that: The other end of the circular tube body is processed with two circular through holes, the center line of each circular through hole is vertically arranged with the center line of the circular tube body, and the center lines of the two circular through holes are vertically arranged.

5. The special wrench for disassembling and assembling the manhole of the pressure vessel of a pressurized boiler according to claim 4, characterized in that: The wrench force rod (3) is a cylindrical rod body, and the cylindrical rod body is arranged in any circular through hole on the wrench head connecting pipe (2).

6. The special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler according to claim 5, characterized in that: The diameter of the spanner force rod (3) is smaller than the hole diameter of the circular through hole.

7. The special wrench for disassembling and assembling the manhole of a pressure vessel of a pressurized boiler according to claim 3, characterized in that: The outer diameter of the cylindrical head is greater than the outer diameter of the wrench head connecting pipe (2).

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