CN202989228U - Large-space hearth of vacuum furnace for heat treatment - Google Patents
Large-space hearth of vacuum furnace for heat treatment Download PDFInfo
- Publication number
- CN202989228U CN202989228U CN 201220746341 CN201220746341U CN202989228U CN 202989228 U CN202989228 U CN 202989228U CN 201220746341 CN201220746341 CN 201220746341 CN 201220746341 U CN201220746341 U CN 201220746341U CN 202989228 U CN202989228 U CN 202989228U
- Authority
- CN
- China
- Prior art keywords
- temperature
- heating zone
- hearth
- burner hearth
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a large-space hearth of a vacuum furnace for heat treatment. The large-space hearth of the vacuum furnace for the heat treatment comprises a hearth body, wherein the hearth body is divided into a plurality of independent heating regions; and each independent heating region is provided with a device capable of adjusting temperature. According to the large-space hearth disclosed by the utility model, the effective heating regions of the large-space hearth are distributed into a plurality of large heating regions; each large heating region is divided into a plurality of independent small heating regions; the heating of each small heating region is independently controlled; and a manner of configuring a temperature-controlling thermocouple on each small heating region is adopted to realize the temperature uniformity of the large-space hearth of the vacuum furnace for the heat treatment with the length of the effective heating regions, which is more than 1200mm.
Description
Technical field
The utility model relates to a kind of thermal treatment with large space burner hearth and the temperature control method thereof of vacuum oven, belongs to the metal heat treatment equipment technical field.
Background technology
Vacuum oven is used as one of equipment of the heat treatment industry renewal and renovation of equipment replacement, its major reason is that product parts surface-brightening, low or non oxidizing, the performance of vacuum oven processing is good, precision is high, easily realize in the vacuum oven production run energy-conservation, lower consumption, subtract dirt, belong to the cleaner production equipment, meet the requirement of current environmental protection.In vacuum, gas molecule is few, and it is large that the free path of molecule becomes, and therefore can produce light rare metal, refractory metal, rare metal and other special alloy material etc. that can't obtain under normal pressure.
Compare vacuum metallurgy with traditional metallurgy and have the advantages such as less energy-consumption, the rate of recovery be high, pollution-free, good in economic efficiency, therefore more and more be subject to people's attention.But the research of vacuum metallurgy process depends on the exploitation of vacuum metling equipment to a great extent.Along with the development of vacuum metallurgy technology, vacuum metling equipment needs constantly perfect, improves level of automation, makes vacuum metling equipment to intellectuality, the integrated direction development.Temperature is the important technical parameter of Metal smelting, in the Metal smelting process, the accurate control of temperature has often been determined the quality of product.Along with the development of electronics, computer and network technologies, automation control system has experienced combination type analog Controlling System, centralized digital control system, dcs, develops into field bus control system and Ethernet system stage.The development of Controlling System presents to the direction of decentralized, networking, intelligent development.Wherein, especially remarkable with aspect networking tendency such as Automation of Manufacturing Process, instrument monitoring diagnosis.Distributed control is exactly that local computer is monitored and controlled remote equipment by network system, comprises data gathering, monitoring and the maintenance of equipment.The distributed control of system is one of gordian technique of main equipment safe and stable operation, is also to improve Mechatronic Systems working efficiency and reliability, carries out the basis of Predictive Maintenance and precognition management.
At present, thermal treatment is not generally very large with the burner hearth effective heating area of vacuum oven, usually effective heating area is of a size of 300 * 300 * 500,400 * 400 * 600,600 * 600 * 900 and 800 * 800 * 1200 (mm), the burner hearth that effective heating area length surpasses 1200mm does not almost have, be mainly because long heating zone temperature uniformity can not be guaranteed, and temperature uniformity is a very important parameter that affects product quality and performances.At present, thermal treatment is generally adopted the connection of trilateral/star-like connection or is adopted two leg-of-mutton connections in two, district of independent heating with the burner hearth type of heating of vacuum oven, substantially can satisfy the requirement of general vacuum oven design, and it is succinct, reliable, convenient to connect.
But there is following shortcoming in these several connections:
(1) can not satisfy the inhomogeneity requirement of large space fire box temperature, the burner hearth of large space is easily too low at certain several regional temperature, the requirement that exceeds temperature homogeneity;
(2) temperature homogeneity of large space burner hearth can not be controlled automatically.
The utility model content
Problem in view of above-mentioned prior art exists has proposed the utility model.
Therefore, the technical problems to be solved in the utility model is, how to overcome the defective that the large space fire box temperature homogeneity that exists in prior art can not be guaranteed, so that can guarantee that thermal treatment is with the temperature homogeneity of the large space burner hearth of vacuum oven.
For solving the problems of the technologies described above, the utility model provides following technical scheme: a kind of thermal treatment vacuum oven large space burner hearth, comprise the burner hearth body, described burner hearth body is divided into some independently heating zone, and each described independently heating zone is provided with the device of temperature-adjustable.
As a kind of preferred version of thermal treatment described in the utility model with vacuum oven large space burner hearth, wherein: described burner hearth body is divided into the first heating zone and the second heating zone.
As a kind of preferred version of thermal treatment described in the utility model with vacuum oven large space burner hearth, wherein: described the first heating zone is divided into three independently little heating zone, and described the second heating zone is divided into three independently little heating zone.
As a kind of preferred version of thermal treatment described in the utility model with vacuum oven large space burner hearth, wherein: the device of described temperature-adjustable is power regulator and temperature-control heat couple.
The utility model adopts large space burner hearth effective heating area is arranged to several large heating zone, each large heating zone is divided into a plurality of independently little heating zone, the heating of each little heating zone is controlled separately, and realizes that in the mode of a temperature-control heat couple of each little heating zone configuration effective heating area length is over the temperature homogeneity of the large space burner hearth of the thermal treatment use vacuum oven of 1200mm.
Description of drawings
Fig. 1 is the structural representation that vacuum oven large space burner hearth is used in embodiment thermal treatment of the utility model.
Fig. 2 is the utility model principle of control temperature schematic diagram.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In figure, temperature-control heat couple 1, heating resistor 2,4, the second heating zone 5, power regulator 3, the first heating zone.
As shown in Figure 1, in this embodiment, this thermal treatment is divided into the first heating zone 4 and the second heating zone 5 with the burner hearth body of vacuum oven large space burner hearth, wherein, described the first heating zone 4 is divided into three independently little heating zone, and described the second heating zone 5 is divided into three independently little heating zone.And each independently little heating zone all is provided with the device of temperature-adjustable, and the device of described temperature-adjustable is power regulator and temperature-control heat couple, and so, in the heat tracing process, each independently little heating zone can be controlled separately.When certain zone or certain several regional temperature exceed temperature homogeneity and require, by temperature-control heat couple, temperature signal is fed back to PLC, by the relatively control of PLC, the zone of temperature anomaly is strengthened or reduced heating power, guarantee not out-of-size scope of temperature homogeneity.
In this embodiment, the large space burner hearth is divided into two large heating zone, i.e. the first heating zone 4 and the second heating zone 5, and the first heating zone 4 is divided into three independently little heating zone, each little heating zone is provided with an independently power regulator, simultaneously respectively configure a temperature-control heat couple at little heating zone Three regions, the second heating zone 5 is also arranged by the mode of the first heating zone 4.I.e. two large heating zone, six little heating zone, each heating zone arrange an independently power regulator, respectively configure a temperature-control heat couple six little heating zone simultaneously.
Too low or when too high when certain corresponding regional temperature in little heating zone, this corresponding thermopair in little heating zone is transferred to PLC with temperature signal, PLC sends instruction by analysis more afterwards, adjust the heating power of this little heating zone, with the temperature increase of this little heating zone or be reduced in tolerance zone, thereby guaranteed the homogeneity of large space fire box temperature, and realized the automatic control of temperature homogeneity.
As shown in Figure 2, Fig. 2 is the utility model principle of control temperature schematic diagram.At first this temperature control method, powers on PLC and the controlled vacuum oven of predetermined work, and to PC transmitter ready signal.After this, utilize PC to start the controlling run of whole system.In working process, PLC keep in real time on the one hand and PC between data corresponding, the steering order of sending according to PC is on the one hand controlled the heating of vacuum oven.After PLC receives data that PC sends and extracts order, just the vacuum oven state of temperature data that collect are sent to PC, afterwards, PLC continues again to control the heating of vacuum oven.PLC controls main dependence to the temperature of vacuum oven and the adjusting of the device of described temperature-adjustable is controlled the size of the outward current of voltate regulator, and then controls the height of Heating temperature, realizes the control to temperature.
Wherein, the device of temperature-adjustable can be temperature-control heat couple 1, heating resistor 2 and power regulator 3.
In this principle of control temperature,
(1) major function of PC is the parameter setting, data presentation, save data, man-machine communication etc.
(2) major function of PLC is for receiving the parameter preset of PC transmission, to convert current controling signal to for the control command with PC under pre-set program, by the control to heating outward current and vacuum pump, to reach the purpose of controlling temperature and vacuum tightness.Simultaneously the real-time PCs that send to of signal such as the temperature in vacuum oven, pressure, electric current, voltage are processed.
(3) major function of the device of temperature-adjustable is for to be converted to low voltage, large-current electric energy with high-tension civil power, to satisfy the needs of vacuum oven heating.
This temperature control method has not only been realized the automatization of temperature control, and has following function:
(1) monitoring function: the temperature to vacuum oven detects, and monitors;
(2) Presentation Function: can show the temp. in vacuum furnace changing condition, and the setting of temperature process, actual operation curve and parameter;
(3) management function: at any time with the data deposit, as the source recording of experiment, in order to preserve and consult;
(4) communication function: data and message exchange between PC and PLC programmable logic controller;
(5) data processing function: system can carry out calculation process to the temperature signal that gathers automatically, and exports corresponding manipulated variable;
(6) control function: according to preoperative set(ting)value, heat up and be incubated, and having PC and PLC two cover Controlling System, Pc machine Controlling System is main, and the PLC Controlling System is auxiliary.
It should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a thermal treatment with vacuum oven large space burner hearth, comprises the burner hearth body, and it is characterized in that: described burner hearth body is divided into some independently heating zone, and each described independently heating zone is provided with the device of temperature-adjustable.
2. thermal treatment as claimed in claim 1 is with vacuum oven large space burner hearth, and it is characterized in that: described burner hearth body is divided into the first heating zone (4) and the second heating zone (5).
3. thermal treatment as claimed in claim 2 is with vacuum oven large space burner hearth, and it is characterized in that: described the first heating zone (4) is divided into three independently little heating zone, and described the second heating zone (5) is divided into three independently little heating zone.
4. thermal treatment as claimed in claim 1 is with vacuum oven large space burner hearth, and it is characterized in that: the device of described temperature-adjustable is power regulator (3) and temperature-control heat couple (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746341 CN202989228U (en) | 2012-12-29 | 2012-12-29 | Large-space hearth of vacuum furnace for heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746341 CN202989228U (en) | 2012-12-29 | 2012-12-29 | Large-space hearth of vacuum furnace for heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989228U true CN202989228U (en) | 2013-06-12 |
Family
ID=48560424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220746341 Expired - Fee Related CN202989228U (en) | 2012-12-29 | 2012-12-29 | Large-space hearth of vacuum furnace for heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989228U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045810A (en) * | 2012-12-29 | 2013-04-17 | 江苏丰东热技术股份有限公司 | Large-space hearth for heat-treatment vacuum furnace and temperature control method |
| CN108253780A (en) * | 2018-04-02 | 2018-07-06 | 宁波恒普真空技术有限公司 | A kind of vacuum sintering furnace for realizing four controlling temperature with region |
| CN115220497A (en) * | 2022-08-02 | 2022-10-21 | 上海轩田工业设备有限公司 | Vacuum cavity heating device for vacuum reflow soldering furnace and temperature control method thereof |
-
2012
- 2012-12-29 CN CN 201220746341 patent/CN202989228U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045810A (en) * | 2012-12-29 | 2013-04-17 | 江苏丰东热技术股份有限公司 | Large-space hearth for heat-treatment vacuum furnace and temperature control method |
| CN108253780A (en) * | 2018-04-02 | 2018-07-06 | 宁波恒普真空技术有限公司 | A kind of vacuum sintering furnace for realizing four controlling temperature with region |
| CN108253780B (en) * | 2018-04-02 | 2023-12-15 | 宁波恒普技术股份有限公司 | Realize vacuum sintering stove of four regional accuse temperatures |
| CN115220497A (en) * | 2022-08-02 | 2022-10-21 | 上海轩田工业设备有限公司 | Vacuum cavity heating device for vacuum reflow soldering furnace and temperature control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103045810A (en) | Large-space hearth for heat-treatment vacuum furnace and temperature control method | |
| CN201903776U (en) | Field bus control system for surface treatment production line | |
| CN202989228U (en) | Large-space hearth of vacuum furnace for heat treatment | |
| CN104048517B (en) | A kind of mid-carbon fe-mn electric refining furnaces electric control system | |
| CN203733567U (en) | Transformer air cooling control cabinet | |
| CN104699136A (en) | Temperature control system of power curing oven | |
| CN102230748B (en) | Temperature control system of high temperature furnace | |
| CN108614538B (en) | Control method for orderly operation of industrial equipment | |
| CN202141955U (en) | High temperature furnace temperature control system based on PLC | |
| CN202187896U (en) | Energy-saving device of synchronous control type cooling circulating water pump | |
| CN204925834U (en) | Novel intelligence control system of firing equipment | |
| CN202410317U (en) | Wireless control system for oil filters | |
| CN201540498U (en) | Intelligent fuzzy temperature controlling system of vertical electric heating furnace under environment of industrial network | |
| CN103009806B (en) | Unit type intaglio press energy efficiency temperature control system | |
| CN103730960A (en) | Electric power supply system communication system and communication method thereof | |
| CN105541107A (en) | A temperature compensating control device for a bushing plate subregion and a control method thereof | |
| CN104634069A (en) | Temperature control type electric heating oven | |
| CN201562966U (en) | Constant-power control system of resistance furnace, | |
| CN204479974U (en) | A kind of heating equipment controller | |
| CN203689116U (en) | Crosslinking cable production line intelligent control system | |
| CN207778823U (en) | A kind of fully-automatic coal-fired heat-conducting oil furnace control device | |
| CN202916660U (en) | Automatic control system for industrial silicon furnaces | |
| CN106547230A (en) | A kind of transformer cooling control system | |
| CN201383110Y (en) | Program control alternating current constant-current power supply | |
| CN105278511A (en) | Equipment room temperature intelligent control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170324 Address after: Nanxiang Road 224100 Jiangsu province Yancheng City Dafeng Economic Development Zone No. 333 Patentee after: Jiangsu Dong Feng Technology Co., Ltd. Address before: Nanxiang Road in Dafeng City, Jiangsu province 224100 Yancheng City economic and Technological Development Zone No. 333 Patentee before: Jiangsu Fengdong Thermal Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20171229 |