CN210596191U

CN210596191U - U-shaped heat exchange pipe elbow heat treatment chamber furnace

Info

Publication number: CN210596191U
Application number: CN201921476303.5U
Authority: CN
Inventors: 顾利宾; 张宪刚
Original assignee: Zhangjiagang Kunlun Pipe Industry Co ltd
Current assignee: Zhangjiagang Kunlun Pipe Industry Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-22
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a U-shaped heat exchange tube elbow thermal treatment van-type furnace, include: the furnace body, the front portion and the open setting in upper portion of furnace body for the elbow of U-shaped heat exchange tube can be from last to placing in the furnace body down, all is provided with the hot plate that is used for carrying out the heating to U-shaped heat exchange tube elbow on left inner wall, right inner wall, back inner wall, the end inner wall of furnace body, still includes: the furnace cover is used for sealing the upper opening of the furnace body. The U-shaped heat exchange pipe elbow heat treatment van-type furnace can conveniently and efficiently carry out heat treatment on the elbows of the plurality of U-shaped heat exchange pipes at one time, so that the heat treatment efficiency is greatly improved while the heat treatment on the U-shaped heat exchange pipe elbows is realized.

Description

U-shaped heat exchange pipe elbow heat treatment chamber furnace

Technical Field

The utility model relates to a U-shaped heat exchange tube field of making, concretely relates to U-shaped heat exchange tube elbow thermal treatment van-type furnace for carrying out thermal treatment to U-shaped heat exchange tube.

Background

In the process of bending and forming an elbow of the U-shaped heat exchange tube on a tube bending machine, internal stress can be generated at the elbow, the internal stress in the elbow can reduce the service life of the U-shaped heat exchange tube, the internal stress in the elbow cannot be ignored along with higher and higher quality requirements on the U-shaped heat exchange tube, the internal stress is usually eliminated by adopting a heat treatment mode, but two ends of some U-shaped heat exchange tubes are provided with longer straight tube sections, so the U-shaped heat exchange tubes with longer straight tube sections cannot be subjected to heat treatment in a conventional heat treatment furnace.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the heat treatment van-type furnace for the U-shaped heat exchange pipe elbow can conveniently and efficiently carry out heat treatment on the U-shaped heat exchange pipe.

In order to solve the above problem, the utility model discloses the technical scheme who adopts does: u-shaped heat exchange tube elbow thermal treatment van-type furnace includes: the furnace body, its characterized in that: the front portion and the upper portion of furnace body open the setting for the elbow of U-shaped heat exchange tube can be from last to placing down in the furnace body, all is provided with the hot plate that is used for carrying out the heating to U-shaped heat exchange tube elbow on left inner wall, right inner wall, back inner wall, the end inner wall of furnace body, still includes: the furnace cover is used for sealing the upper opening of the furnace body.

Further, aforementioned U-shaped heat exchange tube elbow heat treatment van-type furnace, wherein: the heating plate is a crawler-type heating plate.

Further, aforementioned U-shaped heat exchange tube elbow heat treatment van-type furnace, wherein: protective guards capable of preventing the U-shaped heat exchange tube elbow from colliding with the heating plate are arranged on the left inner wall, the right inner wall, the rear inner wall and the bottom inner wall of the furnace body.

Further, aforementioned U-shaped heat exchange tube elbow heat treatment van-type furnace, wherein: further comprising: and the thermocouple is used for detecting the temperature in the furnace.

The utility model has the advantages that: u-shaped heat exchange tube elbow thermal treatment van-type furnace can conveniently and high-efficiently once only carry out thermal treatment to the elbow of a plurality of U-shaped heat exchange tubes to still improve thermal treatment efficiency greatly when realizing heat treatment to U-shaped heat exchange tube elbow.

Drawings

Fig. 1 is a schematic view of the overlooking structure of the thermal treatment van-type furnace with the U-shaped heat exchange tube elbow, which is not covered by the furnace cover.

Fig. 2 is a schematic view of the sectional structure of the heat treatment van-type furnace with U-shaped heat exchange tubes and elbows.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 and 2, the structure of the heat treatment chamber furnace includes: the heating furnace comprises a furnace body 1, wherein the front part and the upper part of the furnace body 1 are arranged in an open manner, so that an elbow of a U-shaped heat exchange tube 2 can be placed in the furnace body 1 from top to bottom, and heating plates 3 for heating the elbow of the U-shaped heat exchange tube 2 are arranged on the left inner wall, the right inner wall, the rear inner wall and the bottom inner wall of the furnace body 1; further comprising: a furnace cover 6 for sealing the opening of the furnace body 1 and three thermocouples 8 for detecting the temperature in the furnace.

In this embodiment, the left inner wall, the right inner wall, the rear inner wall and the bottom inner wall of the furnace body 1 are provided with guard rails 7 capable of preventing the bends of the U-shaped heat exchange tubes 2 from colliding with the heating plate 3.

The heat treatment process is as follows: (1) transversely paving a strip-shaped heat preservation cotton 4 capable of preventing heat in the furnace from losing at the bottom of the front opening of the furnace body 1; (2) a layer of U-shaped heat exchange tube group 9 is laid in the furnace body 1, wherein the straight tube section extends outwards from the front opening of the furnace body 1 and is pressed on the strip-shaped heat insulation cotton 4, the U-shaped heat exchange tube group 9 is formed by sequentially and orderly surrounding and tiling a plurality of U-shaped heat exchange tubes 2 according to the sequence of the bending radii from small to large, and asbestos ropes 5 which are positioned above the strip-shaped heat insulation cotton 4 and can prevent the heat loss in the furnace are respectively embedded between the straight tube sections of every two adjacent U-shaped heat exchange tubes 2 in the U-shaped heat exchange tube group 9; (3) paving a plurality of layers on the paved U-shaped heat exchange tube group 9 according to the steps 2 and 3 in the sequence of paving a layer of strip-shaped heat preservation cotton 4 and then paving a layer of U-shaped heat exchange tube group 9 until the furnace body 1 is fully paved; the long-strip-shaped heat insulation cotton 4 laid at the back is vertically aligned with the long-strip-shaped heat insulation cotton 4 laid at the first, and the U-shaped heat exchange tube group 9 laid at the back and the U-shaped heat exchange tube group 9 laid at the first are vertically aligned; (4) a ring of annular heat preservation cotton 41 for preventing heat loss in the furnace is laid on the upper opening of the furnace body 1, and then a furnace cover 6 is covered on the upper opening of the furnace body 1; (5) the heating plates 3 are electrified to carry out heating heat treatment on the elbow of the U-shaped heat exchange tube 2 in the furnace body 1, and the temperature in the furnace is fed back by the three thermocouples 8.

Claims

A U-shaped heat exchange tube elbow heat treatment van-type furnace includes: the furnace body, its characterized in that: the front portion and the upper portion of furnace body open the setting for the elbow of U-shaped heat exchange tube can be from last to placing down in the furnace body, all is provided with the hot plate that is used for carrying out the heating to U-shaped heat exchange tube elbow on left inner wall, right inner wall, back inner wall, the end inner wall of furnace body, still includes: the furnace cover is used for sealing the upper opening of the furnace body.
2. The U-shaped heat exchange tube elbow heat treatment van-type furnace of claim 1, wherein: the heating plate is a crawler-type heating plate.
3. The U-shaped heat exchange tube elbow heat treatment van-type furnace of claim 1 or 2, wherein: protective guards capable of preventing the U-shaped heat exchange tube elbow from colliding with the heating plate are arranged on the left inner wall, the right inner wall, the rear inner wall and the bottom inner wall of the furnace body.
4. The U-shaped heat exchange tube elbow heat treatment van-type furnace of claim 1 or 2, wherein: further comprising: and the thermocouple is used for detecting the temperature in the furnace.