CN203112883U - Annealing furnace for heat treatment of pressure vessel - Google Patents
Annealing furnace for heat treatment of pressure vessel Download PDFInfo
- Publication number
- CN203112883U CN203112883U CN 201220744723 CN201220744723U CN203112883U CN 203112883 U CN203112883 U CN 203112883U CN 201220744723 CN201220744723 CN 201220744723 CN 201220744723 U CN201220744723 U CN 201220744723U CN 203112883 U CN203112883 U CN 203112883U
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- gas
- annealing furnace
- burner hearth
- burner
- hearth
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model discloses an annealing furnace for the heat treatment of a pressure vessel. According to the annealing furnace, a gas burner is arranged at the hearth side of the annealing furnace; a heating resistance wire is arranged on the wall surface of a hearth; a valve for controlling pipelines to be connected or cut off is arranged between a gas exhausting pipe a pipeline of a heat exchanger; and a gas circulating device is communicated with the gas exhausting pipe so as to pump gas in the gas exhausting pipe and is used for evenly distributing the gas into the hearth at the far end of the gas exhausting pipe through a plurality of distributing pipes. As the annealing furnace is used, the heating resistance wire and the gas burner can be started at the same time at the temperature raising stage, so that the temperature can be raised rapidly. Only the heating resistance wire is started at the heat preservation stage; and the gas circulating device is used for reasonably organizing gas flows in the hearth, so that the temperature uniformity in the hearth is improved; the exhaust heat loss is eliminated; and the heat transfer efficiency of the heating resistance wire is improved. Therefore, the annealing furnace is relatively good in energy conservation, environment-friendly and good in economical efficiency.
Description
Technical field
The utility model relates to metal heat treatmet equipment, particularly a kind of pressurized vessel thermal treatment annealing furnace.
Background technology
Annealing furnace is a kind of equipment that is used for metal is carried out anneal.Can be divided into flame furnace and electric furnace two classes according to its heat-supplying mode difference.The characteristics of flame furnace are that rate of heating is fast, and fuel price is lower; Shortcoming is to be not easy to realize accuracy control over temperature, and the necessary exhaust of its burning, will inevitably cause certain thermosteresis.The characteristics of electric furnace are that furnace temperature is even, and heating quality is good, are convenient to realize furnace temperature accurately control and automatization, and compare the thermosteresis that it does not exist exhaust to bring with flame furnace; Yet its shortcoming is that rate of heating is slower, and the electric lighting bill is heavy during peak of power consumption, uneconomical.
Summary of the invention
The present invention is intended to provide a kind of having concurrently and is rapidly heated and temperature control accurate two big advantages, and the pressurized vessel thermal treatment annealing furnace of good economy performance.
Pressurized vessel thermal treatment annealing furnace described in the utility model, comprise burner hearth, the fire door of burner hearth both sides and fire door hoisting appliance, the bottom of burner hearth arranges the chassis of delivery workpiece and drives the chassis transmission rig that chassis moves along the burner hearth direction, the top of burner hearth arranges gas shaft, one side of burner hearth arranges gas burner, the freezing air inlet pipe feeds gas burner after by heat exchanger, the vapor pipe of roof of the furnace feeds gas shaft behind heat exchanger, the wall of described burner hearth also is provided with resistive heater, the valve that can control its break-make is set between the pipeline of vapor pipe and heat exchanger, pressurized vessel thermal treatment also is provided with gas-recycling plant with annealing furnace, described gas-recycling plant is communicated with vapor pipe, the gas in the exhaust gas extraction pipe, and by many distribution pipings gas is distributed in the burner hearth of distal exhaust tube uniformly.
Pressurized vessel thermal treatment annealing furnace described in the utility model, during annealing operation, workpiece to be annealed is positioned on the chassis, fire door rises, workpiece chassis under the drive of chassis transmission rig enters burner hearth, controls fire door afterwards and descends to closing and make burner hearth enter the sealing keeping warm mode.Then, thermal treatment heats up with annealing furnace to pressurized vessel, and by unlatching gas burner and resistive heater, or one of them enters heated condition to start both.When opening the gas burner heating, gas blower is opened, and air enters the combustion-supporting effect of gas burner from inlet mouth after heat exchange is carried out in heat exchanger and exhaust.Exhaust is simultaneously then discharged through enter gas shaft behind heat exchanger.When fire box temperature reach annealing when requiring temperature pressurized vessel thermal treatment enter the heat insulation work state with annealing furnace, can control arbitrary heating source to achieve the goal this moment, under the situation of only using resistive heater as heat insulation work state heating source, can close into, drain tap, and close valve between vapor pipe and heat exchanger pipeline, open gas-recycling plant, make the interior gas of burner hearth behind vapor pipe, enter gas-recycling plant, and will evenly be transmitted back in the burner hearth of distal exhaust tube by many distribution pipings of gas-recycling plant, realize the circulation of gas, improve the inhomogeneity purpose of burner hearth internal temperature thereby reach.
Pressurized vessel thermal treatment annealing furnace described in the utility model can be opened heating resistance wire and gas burner simultaneously in the temperature rise period, can realize fast heating up.And only open at holding stage under the situation of heating resistance wire, it passes through gas-recycling plant, carry out the rationalization of air-flow in the burner hearth, not only improved the homogeneity of temperature in the burner hearth, eliminate waste-heat rejection, also improved the heat transfer efficiency of resistive heater, thereby also more happy festival time energy environmental protection, economy is also better.In addition, described pressurized vessel thermal treatment makes it can also adapt to special heat treatment requirements and the energy prices of change with the optional type of heating of annealing furnace.
Description of drawings
Fig. 1 is the overall schematic that annealing furnace is used in pressurized vessel thermal treatment described in the utility model;
Fig. 2 is the A-A sectional view (not representing chimney and fire door hoisting appliance) of Fig. 1.
Concrete real-time mode
A kind of pressurized vessel thermal treatment annealing furnace, as Fig. 1, Fig. 2, comprise burner hearth 3, the fire door 4 of burner hearth both sides and fire door hoisting appliance, the bottom of burner hearth arranges the chassis 2 of delivery workpiece and drives the chassis transmission rig 1 that chassis moves along the burner hearth direction, the top of burner hearth arranges gas shaft 5, one side of burner hearth arranges gas burner 11, freezing air inlet pipe 14 feeds gas burner by heat exchanger 7 backs, the vapor pipe 8 of roof of the furnace feeds gas shaft behind heat exchanger, the wall of burner hearth also is provided with resistive heater 15, the valve that can control its break-make is set between the pipeline of vapor pipe and heat exchanger, pressurized vessel thermal treatment also is provided with gas-recycling plant 12 with annealing furnace, described gas-recycling plant is communicated with vapor pipe by gas circulating tube 13, gas in the exhaust gas extraction pipe, and by many distribution pipings 16 gas is distributed in the burner hearth of distal exhaust tube uniformly.
Distribution piping is good with the burner hearth wall that leads to the resistive heater back, and it more is conducive to improve the heat transfer efficiency of resistive heater.
Described gas burner can arrange more than two or three, so that burn when heating, burner hearth heats up faster, more even.Fig. 2 is the situation of two gas burners, and two gas burner lays respectively at two jiaos of burner hearth.
Claims (3)
1. pressurized vessel thermal treatment annealing furnace, comprise burner hearth, the fire door of burner hearth both sides and fire door hoisting appliance, the bottom of burner hearth arranges the chassis of delivery workpiece and drives the chassis transmission rig that chassis moves along the burner hearth direction, the top of burner hearth arranges gas shaft, one side of burner hearth arranges gas burner, the freezing air inlet pipe feeds gas burner after by heat exchanger, the vapor pipe of roof of the furnace feeds gas shaft behind heat exchanger, it is characterized in that: the wall of burner hearth also is provided with resistive heater, the valve that can control its break-make is set between the pipeline of vapor pipe and heat exchanger, pressurized vessel thermal treatment also is provided with gas-recycling plant with annealing furnace, described gas-recycling plant is communicated with vapor pipe, the gas in the exhaust gas extraction pipe, and by many distribution pipings gas is distributed in the burner hearth of distal exhaust tube uniformly.
2. pressurized vessel thermal treatment annealing furnace according to claim 1, it is characterized in that: the distribution piping of gas-recycling plant leads to the burner hearth wall at resistive heater back.
3. pressurized vessel thermal treatment annealing furnace according to claim 1 and 2, it is characterized in that: described gas burner can arrange more than two or three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744723 CN203112883U (en) | 2012-12-31 | 2012-12-31 | Annealing furnace for heat treatment of pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744723 CN203112883U (en) | 2012-12-31 | 2012-12-31 | Annealing furnace for heat treatment of pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203112883U true CN203112883U (en) | 2013-08-07 |
Family
ID=48893251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744723 Expired - Lifetime CN203112883U (en) | 2012-12-31 | 2012-12-31 | Annealing furnace for heat treatment of pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203112883U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940229A (en) * | 2014-04-04 | 2014-07-23 | 江苏邦泰炉业有限公司 | Fuel gas penetration furnace with regenerative burners |
| CN104561495A (en) * | 2015-01-20 | 2015-04-29 | 成都格瑞特高压容器有限责任公司 | High-pressure vessel heat treatment equipment |
| CN106086332A (en) * | 2016-08-01 | 2016-11-09 | 河南省天利工业炉有限公司 | A kind of bogie type gas annealing furnace |
| CN106987701A (en) * | 2017-06-02 | 2017-07-28 | 江苏兴洋管业股份有限公司 | A kind of stainless steel pipe solid solution heat treatment device |
| CN109652632A (en) * | 2018-12-29 | 2019-04-19 | 张家港市江南锅炉压力容器有限公司 | A kind of heat-treatment furnace |
-
2012
- 2012-12-31 CN CN 201220744723 patent/CN203112883U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940229A (en) * | 2014-04-04 | 2014-07-23 | 江苏邦泰炉业有限公司 | Fuel gas penetration furnace with regenerative burners |
| CN104561495A (en) * | 2015-01-20 | 2015-04-29 | 成都格瑞特高压容器有限责任公司 | High-pressure vessel heat treatment equipment |
| CN106086332A (en) * | 2016-08-01 | 2016-11-09 | 河南省天利工业炉有限公司 | A kind of bogie type gas annealing furnace |
| CN106987701A (en) * | 2017-06-02 | 2017-07-28 | 江苏兴洋管业股份有限公司 | A kind of stainless steel pipe solid solution heat treatment device |
| CN109652632A (en) * | 2018-12-29 | 2019-04-19 | 张家港市江南锅炉压力容器有限公司 | A kind of heat-treatment furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |