CN206256114U - A kind of gas heat treatment furnace cooling intelligence control system - Google Patents
A kind of gas heat treatment furnace cooling intelligence control system Download PDFInfo
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- CN206256114U CN206256114U CN201621375310.2U CN201621375310U CN206256114U CN 206256114 U CN206256114 U CN 206256114U CN 201621375310 U CN201621375310 U CN 201621375310U CN 206256114 U CN206256114 U CN 206256114U
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- electromagnetic valve
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- treatment furnace
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Abstract
The utility model is related to gas heat treatment furnace cooling field of intelligent control technology, specifically related to a kind of gas heat treatment furnace cooling intelligence control system, the control system includes industrial computer, PLC and the burner unit and burner hearth temperature measuring equipment that are connected on PLC, the burner unit includes burner, burner controller, is arranged on to the big fire gas electromagnetic valve and small fire gas electromagnetic valve being arranged in parallel on the air electromagnetism butterfly valve and Gas Pipe on the air hose that air is conveyed in burner hearth, and the small fire gas electromagnetic valve is connected on the burner controller；The burner hearth temperature measuring equipment, air electromagnetism butterfly valve, burner controller and big fire gas electromagnetic valve are all connected on PLC.The purpose of this utility model is to overcome the shortcomings of that cooling rate present in prior art and temperature homogeneity cannot obtain effective detection and control and provide a kind of controllable precise and do not increase investment cost, mitigate the gas heat treatment furnace cooling intelligence control system of operating personnel's workload.
Description
Technical field
The utility model is related to gas heat treatment furnace cooling field of intelligent control technology, and in particular to a kind of that workpiece is lowered the temperature
Speed and temperature homogeneity have the gas heat treatment furnace cooling intelligence control system of precise control requirement.
Background technology
Operational control pattern before this is：When furnace temperature is more than 500 DEG C, workpiece has cooling speed higher in stove
Degree, when lower the temperature temperature be less than setting value when, then put burner spray big fire, toward stove in heating load, raising furnace temperature；Furnace temperature 500 DEG C with
When lower, cooling rate of the workpiece in stove is slower, when temperature of lowering the temperature is higher than setting value, by three below step operation：（1）Adjust
Section side seal, fire door and smoke evacuation valve plate aperture, are lowered the temperature by natural convection ventilation；（2）If temperature is also higher, chassis is opened
Flake hearth-tapping, workpiece and chassis are lowered the temperature in being directly exposed to air；（3）Artificial discontinuity detection workpiece temperature is taken, if reaching technique
During set temperature value, chassis is driven into burner hearth.Especially in 350 DEG C~100 DEG C temperature-fall periods, cooling speed of the workpiece in stove
Degree is especially slow, it is necessary to repeatedly perform repeatedly（2）（3）Operating procedure, temperature reduction technology could have been performed.Cooling rate can only be carried out
Rough control, cooling rate and temperature homogeneity cannot obtain effective detection and control, and product quality cannot be guaranteed completely,
Stove can only be again returned through the product of disqualified upon inspection to process.
The content of the invention
The purpose of this utility model is to overcome cooling rate present in above-mentioned prior art and the temperature homogeneity cannot
Obtain the deficiency of effective detection and control and a kind of controllable precise is provided and is not increased investment cost, mitigated operating personnel's workload
Gas heat treatment furnace cooling intelligence control system.
The technical solution of the utility model is as follows：A kind of gas heat treatment furnace cooling intelligence control system, the control system
Including industrial computer, PLC and the burner unit and burner hearth temperature measuring equipment that are connected on PLC, the burner unit includes burner, burner
Controller, it is arranged on to the big fire that is arranged in parallel on the air electromagnetism butterfly valve and Gas Pipe on the air hose that air is conveyed in burner hearth
Gas electromagnetic valve and small fire gas electromagnetic valve, the small fire gas electromagnetic valve are connected on the burner controller；The burner hearth
Temperature measuring equipment, burner controller and big fire gas electromagnetic valve and the connection of air electromagnetism butterfly valve are all connected on PLC.
Furnace pressure measurement apparatus and smoke discharging pipe are connected with burner hearth, automatic cigarette valve is provided with smoke discharging pipe, it is described
Furnace pressure measurement apparatus and automatic cigarette valve are both connected on PLC.
The control system includes one or more temperature control areas, and each temperature control area sets one or more burner units.
The control system includes three temperature control areas, and each temperature control area sets two burner units and a burner hearth thermometric dress
Put.
Each burner unit includes a burner control cabinet, and the burner controller is arranged in burner control cabinet.
Small fire igniting, fire inspection and flame-out indicator lamp are provided with the burner control cabinet.
Every stove carries out rational subregion when building by the temperature uniformity of technological requirement（This subregion is virtual
, typically it is divided into multiple segments along furnace length direction, each segment is 1 subregion, is referred to as 1st area, 2nd area, 3
Area ...）, each subregion installs 1 set temperature measuring equipment, and each subregion can also include 2 burners or 4 comprising 1 burner
Burner ..., comprising burner quantity more at most temperature uniformity be more difficult to control.Each burner is equipped with 1 air electromagnetism butterfly
Valve, 1 big fire gas electromagnetic valve and 1 small fire gas electromagnetic valve.
Subregion temperature control is exactly the actual parameter that each subregion temperature measuring equipment is detected, is real-time transmitted to PLC, and PLC is at
After reason, control instruction is sent to the burner of each subregion in real time.The desired temperature of each subregion is same numerical value, by furnace maneuver
Personnel are input into industrial computer in the form of process curve.If the actual parameter value of subregion reaches the setting value of technique, the subregion
All burner big fire be closed；If the actual parameter value of subregion is less than the setting value of technique, the institute of the subregion
There is burner big fire to be in opening, heat is fed toward burner hearth is interior.
The good effect that the technical solution of the utility model is produced is as follows：The utility model is using burner list blowing control mould
Formula, burner list blowing control model refers to that the air electromagnetism butterfly valve control circuit only on burner air-supply pipeline is in work shape
State, and acted accordingly according to the instruction that PLC sends, and at the big fire gas electromagnetic valve of burner and small fire gas electromagnetic valve
In closed mode, it is failure to actuate.Such control model has advantages below：
1st, intrinsic indispensable burning and control system can be utilized, increases control circuit, the control circuit and air electromagnetism
Butterfly valve is individually connected, and burner list blowing control model can control the air electromagnetism butterfly valve to have independent opening and closing function,
Do not increase investment cost；2nd, workpiece can be realized in descent of temperature, to cooling rate and the precise control of temperature homogeneity；3、
Improve product quality；4th, the workload of operating personnel can be mitigated；5th, it is simple to operate, safety, economic, reliability.
Brief description of the drawings
Fig. 1 is the utility model burner hearth temperature control subregion schematic diagram.
Fig. 2 is burner unit assembly figure of the present utility model.
Fig. 3 is the control block diagram of the utility model gas heat treatment furnace cooling intelligence control system.
It is labeled as in figure：1、PLC；2nd, burner hearth temperature measuring equipment；21st, the first burner hearth temperature measuring equipment；22nd, the second burner hearth thermometric dress
Put；23rd, the 3rd burner hearth temperature measuring equipment；3rd, burner；31st, the first burner；32nd, the second burner；33rd, the 3rd burner；34th, the 4th burns
Mouth；35th, the 5th burner；36th, the 6th burner；4th, burner controller；41st, the first burner controller；42nd, the second burner controller；
43rd, the 3rd burner controller；44th, the 4th burner controller；45th, the 5th burner controller；46th, the 6th burner controller；5th, it is empty
Pneumoelectric magnetic butterfly valve；51st, the first air electromagnetism butterfly valve；52nd, the second air electromagnetism butterfly valve；53rd, the 3rd air electromagnetism butterfly valve；54th,
Four air electromagnetism butterfly valves；55th, the 5th air electromagnetism butterfly valve；56th, the 6th air electromagnetism butterfly valve；6th, big fire gas electromagnetic valve；61st,
One big fire gas electromagnetic valve；62nd, the second big fire gas electromagnetic valve；63rd, the third-largest fiery gas electromagnetic valve；64th, the fourth-largest fiery combustion gas
Magnetic valve；65th, the fifth-largest fiery gas electromagnetic valve；66th, the sixth-largest fiery gas electromagnetic valve；7th, small fire gas electromagnetic valve；71st, first is small
Fiery gas electromagnetic valve；72nd, the second small fire gas electromagnetic valve；73rd, the 3rd small fire gas electromagnetic valve；74th, the 4th small fire combustion gas electromagnetism
Valve；75th, the 5th small fire gas electromagnetic valve；76th, the 6th small fire gas electromagnetic valve；8th, the first temperature control area；9th, the second temperature control area；10、
3rd temperature control area；11st, automatic cigarette valve；12nd, furnace pressure measurement apparatus；13rd, burner.
Specific embodiment
A kind of gas heat treatment furnace cooling intelligence control system, as shown in Figure 1, 2, 3, the control system controls 3 temperature controls
Area：First temperature control area 8, the second temperature control area 9 and the 3rd temperature control area 10；Each temperature control area includes two burner units and a burner hearth
Temperature measuring equipment 2.The control system includes industrial computer, PLC1 and the 6 burner units and 3 burner hearth thermometric dresses that are connected on PLC
Put, the burner unit includes burner 3, burner controller 4, is arranged on to the air electricity on the air hose that air is conveyed in burner hearth
The big fire gas electromagnetic valve 6 and small fire gas electromagnetic valve 7 being arranged in parallel on magnetic butterfly valve 5 and Gas Pipe, the small fire combustion gas electromagnetism
Valve is connected on the burner controller；The burner hearth temperature measuring equipment, burner controller, big fire gas electromagnetic valve and air electromagnetism
Butterfly valve is all connected on PLC.
As shown in figure 3, the first temperature control area includes the first burner unit, the second burner unit and the first burner hearth temperature measuring equipment
21, the first burner unit includes the first burner 31, the first burner controller 41, the first air electromagnetism butterfly valve 51, the first big fire combustion
The small fire gas electromagnetic valve 71 of pneumoelectric magnet valve 61 and first, the second burner unit include the second burner 32, the second burner controller 42,
Second air electromagnetism butterfly valve 52, the second big fire gas electromagnetic valve 62 and the second small fire gas electromagnetic valve 72；Second temperature control area includes
3rd burner unit, the 4th burner unit and the second burner hearth temperature measuring equipment 22, the 3rd burner unit include the 3rd burner the 33, the 3rd
Burner controller 43, the 3rd air electromagnetism butterfly valve 53, the small fire gas electromagnetic valve 73 of the third-largest fiery gas electromagnetic valve 63 and the 3rd, the
Four burner units include the 4th burner 34, the 4th burner controller 44, the 4th air electromagnetism butterfly valve 54, the fourth-largest fiery combustion gas electromagnetism
The small fire gas electromagnetic valve 74 of valve 64 and the 4th；3rd temperature control area includes the 5th burner unit, the 6th burner unit and the 3rd burner hearth
Temperature measuring equipment 23, the 5th burner unit includes the 5th burner 35, the 5th burner controller 45, the 5th air electromagnetism butterfly valve 55, the
Five big fire gas electromagnetic valves 65 and the 5th small fire gas electromagnetic valve 75, the 6th burner unit include the 6th burner 36, the 6th burner
Controller 46, the 6th air electromagnetism butterfly valve 56, the small fire gas electromagnetic valve 76. of the sixth-largest fiery gas electromagnetic valve 66 and the 6th
Furnace pressure measurement apparatus 12 and smoke discharging pipe are connected with burner hearth, automatic cigarette valve 11 are provided with smoke discharging pipe,
The furnace pressure measurement apparatus and automatic cigarette valve are both connected on PLC.
Each burner unit includes a burner control cabinet, and the burner controller is arranged in burner control cabinet.
Small fire igniting, fire inspection and flame-out indicator lamp are provided with the burner control cabinet.
When temperature reduction technology is performed, subregion furnace temperature is measured by the temperature measuring equipment of each temperature control subregion, the signal of measurement
Send PLC to, be compared with process set value, calculate the temperature departure value of each temperature control subregion.The burner hearth of each temperature control subregion
Temperature measuring equipment is arranged in burner hearth.
According to the temperature departure value of each temperature control subregion for calculating, from PLC respectively to each burner of each temperature control subregion
Air electromagnetism butterfly valve, big fire gas electromagnetic valve synchronously send corresponding control instruction, each burning that each temperature control subregion is included
What mouth was received is same control instruction, and is acted accordingly by instruction.
The small fire gas electromagnetic valve of each burner of burner hearth is controlled by each burner controller, is typically in normally open, is length
Naked light.If certain temperature control subregion observed temperature numerical value is less than its process set value, while opening the temperature control subregion each burner
Air electromagnetism butterfly valve and big fire gas electromagnetic valve, air and combustion gas burnt through burner 13 it is latter with entering burner hearth, reach plus
Heat raises the purpose of the temperature control subregion burner hearth and workpiece temperature；When the temperature of the temperature control subregion reaches process set value, then together
When close the air electromagnetism butterfly valve and big fire gas electromagnetic valve of each burner of the temperature control subregion, realize furnace temperature with process set value
The accurate cooling control function for changing.
If certain temperature control subregion observed temperature numerical value is higher than its process set value, burner list blowing pattern is automatically turned on, only
The air electromagnetism butterfly valve of each burner of the temperature control subregion is opened, small fire gas electromagnetic valve, big fire gas electromagnetic valve are in closes shape
State, the air in air supply line enters in burner hearth through burner, realizes the function that cools.
The flue gas for feeding the air in burner hearth or feeding air and the fuel gas buring generation in burner hearth is arranged through smoke discharging pipe
Go out, furnace pressure is controlled by automatic cigarette valve regulation.Smoke discharging pipe is connected with burner hearth, and automatic cigarette valve is arranged on smoke discharging pipe.
Claims (6)
1. a kind of gas heat treatment furnace cooling intelligence control system, it is characterised in that：The control system include industrial computer, PLC and
Be connected to burner unit and burner hearth temperature measuring equipment on PLC, the burner unit include burner, burner controller, be arranged on to
The big fire gas electromagnetic valve that is arranged in parallel on air electromagnetism butterfly valve and Gas Pipe in burner hearth on the air hose of conveying air and small
Fiery gas electromagnetic valve, the small fire gas electromagnetic valve is connected on the burner controller；The burner hearth temperature measuring equipment, burner control
Device processed and big fire gas electromagnetic valve and the connection of air electromagnetism butterfly valve are all connected on PLC.
2. a kind of gas heat treatment furnace cooling intelligence control system according to claim 1, it is characterised in that：Connect on burner hearth
Furnace pressure measurement apparatus and smoke discharging pipe are connected to, automatic cigarette valve, the furnace pressure measurement apparatus are provided with smoke discharging pipe
And automatic cigarette valve is both connected on PLC.
3. a kind of gas heat treatment furnace cooling intelligence control system according to claim 1, it is characterised in that：The control
System includes one or more temperature control areas, and each temperature control area sets one or more burner units.
4. a kind of gas heat treatment furnace cooling intelligence control system according to claim 3, it is characterised in that：The control
System includes three temperature control areas, and each temperature control area sets two burner units and a burner hearth temperature measuring equipment.
5. a kind of gas heat treatment furnace cooling intelligence control system according to claim 1, it is characterised in that：Each burner
Unit includes a burner control cabinet, and the burner controller is arranged in burner control cabinet.
6. a kind of gas heat treatment furnace cooling intelligence control system according to claim 1, it is characterised in that：The burner
Small fire igniting, fire inspection and flame-out indicator lamp are provided with control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375310.2U CN206256114U (en) | 2016-12-15 | 2016-12-15 | A kind of gas heat treatment furnace cooling intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375310.2U CN206256114U (en) | 2016-12-15 | 2016-12-15 | A kind of gas heat treatment furnace cooling intelligence control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256114U true CN206256114U (en) | 2017-06-16 |
Family
ID=59029152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621375310.2U Active CN206256114U (en) | 2016-12-15 | 2016-12-15 | A kind of gas heat treatment furnace cooling intelligence control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206256114U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723437A (en) * | 2017-09-27 | 2018-02-23 | 中原特钢股份有限公司 | A kind of bar destressing special furnace |
| CN108594883A (en) * | 2018-03-01 | 2018-09-28 | 常熟市虞华真空设备科技有限公司 | High precision temperature control case |
| CN108955249A (en) * | 2018-07-20 | 2018-12-07 | 无锡中工热控科技有限公司 | A kind of continuous tunnel furnace temperature control system and control method |
| CN110319711A (en) * | 2019-07-10 | 2019-10-11 | 二重（德阳）重型装备有限公司 | Gas furnace method for controlling furnace temperature based on on/off control system |
| CN113804008A (en) * | 2020-06-12 | 2021-12-17 | 宝山钢铁股份有限公司 | Control method for improving temperature uniformity of heating furnace |
-
2016
- 2016-12-15 CN CN201621375310.2U patent/CN206256114U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723437A (en) * | 2017-09-27 | 2018-02-23 | 中原特钢股份有限公司 | A kind of bar destressing special furnace |
| CN107723437B (en) * | 2017-09-27 | 2024-01-23 | 河南中原特钢装备制造有限公司 | Special furnace for bar destressing |
| CN108594883A (en) * | 2018-03-01 | 2018-09-28 | 常熟市虞华真空设备科技有限公司 | High precision temperature control case |
| CN108955249A (en) * | 2018-07-20 | 2018-12-07 | 无锡中工热控科技有限公司 | A kind of continuous tunnel furnace temperature control system and control method |
| CN110319711A (en) * | 2019-07-10 | 2019-10-11 | 二重（德阳）重型装备有限公司 | Gas furnace method for controlling furnace temperature based on on/off control system |
| CN110319711B (en) * | 2019-07-10 | 2020-06-16 | 二重（德阳）重型装备有限公司 | Gas furnace temperature control method based on switching value control system |
| CN113804008A (en) * | 2020-06-12 | 2021-12-17 | 宝山钢铁股份有限公司 | Control method for improving temperature uniformity of heating furnace |
| CN113804008B (en) * | 2020-06-12 | 2023-08-11 | 宝山钢铁股份有限公司 | Control method for improving temperature uniformity of heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180813 Address after: 459000 531 Industrial Park, Tiger Hill Industrial Cluster, Jiyuan City, Jiaozuo, Henan Patentee after: Henan Zhongyuan special steel equipment manufacturing Co., Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: Zhongyuan Special Steel Co., Ltd. |
|
| TR01 | Transfer of patent right |