CN215675145U

CN215675145U - Heat insulation device of economizer pipe

Info

Publication number: CN215675145U
Application number: CN202121649248.2U
Authority: CN
Inventors: 杨承伟; 刘冰
Original assignee: Shanghai Sifang Boiler Group Engineering System Co ltd
Current assignee: Shanghai Sifang Boiler Group Engineering System Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-28
Anticipated expiration: 2031-07-20

Abstract

The utility model provides a heat insulation device for an economizer pipe, which comprises: the clamping plates are arranged in parallel, gaps are reserved between every two adjacent clamping plates, and the end parts of the clamping plates are fixedly connected; a plurality of economizer tubes located within the gap; a thermal insulation layer located between the economizer tube and the clamp plate. The economizer pipe heat insulation device can properly adjust the heating area of the economizer according to the actual working condition requirement of the boiler, so that the economizer can normally operate under a new working condition, and the economizer can not be overheated, thereby avoiding the gasification of water.

Description

Heat insulation device of economizer pipe

Technical Field

The utility model relates to the technical field of machinery, in particular to a heat insulation device for an economizer pipe.

Background

The economizer is an important safety component of a boiler which is a pressure-bearing special device, and is divided into the following parts according to the structural form: steel pipe type and cast iron type. Among them, the steel pipe type economizer is widely applied to high-parameter, large-capacity boilers. The coal economizer is arranged in the boiler mainly at the tail flue and has the working characteristics that the working medium in the pipe is water with certain pressure, and the working medium outside the pipe is high-temperature flue gas. The coal economizer has the structural characteristics that: the steel tube is formed by bending a plurality of seamless steel tubes, and the steel tubes are arranged at a certain distance from top to bottom and from left to right. The economizer belongs to a heating surface at the tail part of a boiler and absorbs more heat in the flue gas through the low temperature of boiler feed water. Typically boiler feed water flows in the economizer and the outlet temperature is controlled to a range at saturation temperature to prevent vaporization. After the boiler operates for a period of time, the working condition of the boiler can be changed due to various reasons, so that the problems of over-temperature of the economizer and vaporization of water are easily caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides an economizer pipe heat insulation device which is used for solving the problems in the prior art.

The utility model provides a heat insulation device for an economizer pipe, which comprises:

the clamping plates are arranged in parallel, gaps are reserved between every two adjacent clamping plates, and the end parts of the clamping plates are fixedly connected;

a plurality of economizer tubes located within the gap;

a thermal insulation layer located between the economizer tube and the clamp plate.

Optionally, the heat insulation layer is filled with rock wool or glass fiber.

Optionally, the inlet of the economizer tube is located on the same side of the clamp plate as the outlet of the economizer tube.

Optionally, the economizer tube is U-shaped.

Optionally, the clamping device further comprises a fixing bolt, wherein the fixing bolt is close to the end part of the clamping plate and is used for fixedly connecting the end part of the clamping plate.

Optionally, the number of the economizer tubes is multiple, and the multiple economizer tubes are arranged in multiple rows and single columns in the gap.

Optionally, the number of the economizer tubes is multiple, the plurality of economizer tubes are arranged in multiple rows and two columns in the gap, outlets and inlets of the economizer tubes located in the same column are located on the same side of the clamping plate, and outlets and inlets of two economizer tubes located in the same row are located on two opposite sides of the clamping plate.

As described above, the economizer pipe heat insulating device of the present invention has the following advantageous effects: the economizer pipe heat insulation device can properly adjust the heating area of the economizer according to the actual working condition requirement of the boiler, so that the economizer can normally operate under a new working condition, and the economizer can not be overheated, thereby avoiding the gasification of water.

Drawings

Fig. 1 is a side sectional view of the economizer tube adiabatic apparatus of the present invention.

Fig. 2 and 3 are front views of the economizer pipe adiabatic apparatus of the present invention.

Element number description:

1. splint, 2, economizer pipe, 3, insulating layer, 4, fixing bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

Referring to fig. 1, the present embodiment provides an economizer pipe heat insulation device, including: the clamping plates 1 are arranged in parallel, gaps are formed between every two adjacent clamping plates 1, and the end parts of the clamping plates 1 are fixedly connected; a plurality of economizer tubes 2, the economizer tubes 2 being located within the gap; a thermal insulation layer 3, the thermal insulation layer 3 being located between the economizer tube 2 and the clamp plate 1.

The economizer pipe heat insulation device can properly adjust the heating area of the economizer according to the actual working condition requirement of the boiler, so that the economizer can normally operate under a new working condition, and the economizer can not be overheated, thereby avoiding the gasification of water.

As an example, the inside of the thermal insulation layer 3 may be filled with rock wool or glass fiber.

As an example, the inlet of the economizer tube 2 is located on the same side of the clamping plate 1 as the outlet of the economizer tube 2.

As an example, the shape of the economizer pipe 2 can be set according to actual needs, and the economizer pipe 2 can be U-shaped, however, in other embodiments, the shape of the economizer pipe 2 can be zigzag, L-shaped, etc., and preferably, in this embodiment, the shape of the economizer pipe 2 is U-shaped.

By way of example, the economizer pipe insulation device further comprises a fixing bolt 4, wherein the fixing bolt 4 is close to the end part of the clamping plate 1 and is used for fixedly connecting the end part of the clamping plate 1.

In one embodiment, the fixing bolt 4 may also be other fixing devices, such as a rivet or a screw.

In one embodiment, the number of the economizer tubes 2 is multiple, and the plurality of economizer tubes 2 are arranged in a plurality of rows and a single column in the gap, as shown in fig. 2; at this time, the outlets and inlets of all the economizer tubes 2 are located on the same side of the clamping plate 1.

In another embodiment, the number of the economizer tubes 2 is plural, the plural economizer tubes 2 are arranged in a plurality of rows and two columns in the gap, the outlets and inlets of the economizer tubes 2 in the same column are located on the same side of the clamping plate 1, and the outlets and inlets of the two economizer tubes 2 in the same row are located on opposite sides of the clamping plate 1, as shown in fig. 3, fig. 3 exemplifies that the plural economizer tubes 2 are arranged in a plurality of rows and two columns in the gap.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An economizer tube insulation, comprising:

a plurality of economizer tubes located within the gap;

2. The economizer tube insulation of claim 1, wherein: rock wool or glass fiber is filled in the heat insulation layer.

3. The economizer tube insulation of claim 1, wherein: the inlet of the economizer tube and the outlet of the economizer tube are located on the same side of the clamping plate.

4. The economizer tube insulation of claim 1, wherein: the economizer tube is U-shaped.

5. The economizer tube insulation of claim 1, wherein: still include fixing bolt, fixing bolt is close to the tip of splint for with the tip fixed connection of splint.

6. The economizer tube insulating apparatus according to any one of claims 1 to 5, characterized in that: the number of the economizer pipes is multiple, and the plurality of economizer pipes are arranged in the gap in a plurality of rows and single columns.

7. The economizer tube insulating apparatus according to any one of claims 1 to 5, characterized in that: the number of the economizer pipes is multiple, the plurality of economizer pipes are arranged in the gap in multiple rows and two columns, outlets and inlets of the economizer pipes positioned in the same column are positioned on the same side of the clamping plate, and outlets and inlets of two economizer pipes positioned in the same row are positioned on two opposite sides of the clamping plate.