CN205414375U - Automatic accuse fire system of die casting machine - Google Patents
Automatic accuse fire system of die casting machine Download PDFInfo
- Publication number
- CN205414375U CN205414375U CN201520943857.7U CN201520943857U CN205414375U CN 205414375 U CN205414375 U CN 205414375U CN 201520943857 U CN201520943857 U CN 201520943857U CN 205414375 U CN205414375 U CN 205414375U
- Authority
- CN
- China
- Prior art keywords
- combustion
- die casting
- transfer valve
- casting machine
- fuel gas
- 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
- 238000004512 die casting Methods 0.000 title claims abstract description 64
- 238000002485 combustion reaction Methods 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 110
- 239000002737 fuel gas Substances 0.000 claims description 89
- 238000010276 construction Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 244000261422 Lysimachia clethroides Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Abstract
The utility model discloses an automatic accuse fire system of die casting machine is applied to the die casting machine of being realized the heating by the combustible gas burning, the die casting machine includes the burning chamber and communicates in the combustible gas conveyer pipe and the combustion -supporting gas conveyer pipe in burning chamber, automatic accuse fire system of die casting machine including correspond set up in the combustible gas transfer valve of combustible gas conveyer pipe, set up in the combustion -supporting gas transfer valve of combustion -supporting gas conveyer pipe and be used for measuring the temperature measuring device of burning chamber temperature, the automatic accuse fire system of die casting machine basis temperature measuring device's measuring result control combustible gas transfer valve with combustion -supporting gas transfer valve to the realization is to the control of combustible gas air input and combustion -supporting gas air input. This automatic accuse fire system of die casting machine can conveniently control the temperature of die casting machine burning intracavity, makes it be in required temperature range.
Description
Technical field
This utility model relates to a kind of temperature control system, particularly relates to a kind of automatic fire-controlling system being applied to die casting machine.
Background technology
At present the temperature of die casting machine is controlled, the most manually regulation fuel gas air intake valve and combustion-supporting gas air intake valve, to control flame size so that material pipe, gooseneck position reach the temperature needed.Manual control valve, temperature is too high, too low to be only capable of by naked eyes with sensation control, and temperature is too high for the moment causes energy waste even to damage several, and temperature is too low for the moment affects die casting effect.
Accordingly, it would be desirable to a kind of die casting machine automatic fire-controlling system, so that the combustion chamber of described die casting machine is in required temperature range.
Utility model content
The purpose of this utility model is to provide a kind of die casting machine automatic fire-controlling system, so that the combustion chamber of described die casting machine is in required temperature range.
To achieve these goals, the utility model discloses a kind of die casting machine automatic fire-controlling system, it is applied to be realized the die casting machine of heating by gas fuel burning, described die casting machine includes combustion chamber and the fuel gas conveying pipe being communicated in combustion chamber and combustion-supporting gas conveying pipe, and described die casting machine automatic fire-controlling system includes being correspondingly arranged in the fuel gas transfer valve of described fuel gas conveying pipe, being arranged at the combustion-supporting gas transfer valve of described combustion-supporting gas conveying pipe and for measuring the temperature measuring equipment of described combustion chamber temperature；Described die casting machine automatic fire-controlling system controls described fuel gas transfer valve and described combustion-supporting gas transfer valve according to the measurement result of described temperature measuring equipment, to realize fuel gas air inflow and the control of combustion-supporting gas air inflow.
Compared with prior art, die casting machine automatic fire-controlling system disclosed in this utility model, one temperature measuring equipment is set and measures the temperature of combustion chamber, and the temperature of combustion chamber that described die casting machine automatic fire-controlling system records according to temperature measuring equipment, control fuel gas transfer valve and the break-make of combustion-supporting gas transfer valve or flow, reach to control to automatically control the combustible gas scale of construction and the combustion-supporting gas amount entering combustion chamber, thus control the combustion position in die casting machine combustion chamber, thus control the temperature in die casting machine combustion chamber easily so that it is it is in required temperature range.Die casting machine automatic fire-controlling system disclosed in this utility model, temperature feedback system is constituted: when the cavity temperature that burns is too high by temperature measuring equipment, fuel gas transfer valve and combustion-supporting gas transfer valve, increase fuel gas and the air inflow of combustion-supporting gas, thus improve combustion chamber temperature；When the cavity temperature that burns is too low, reduces fuel gas and the air inflow of combustion-supporting gas, thus reduce combustion chamber temperature, so that it is guaranteed that combustion chamber is within the scope of required temperature.
It is also preferred that the left described fuel gas conveying pipe and/or described combustion-supporting gas conveying pipe include several；Described die casting machine automatic fire-controlling system controls described fuel gas transfer valve and described combustion-supporting gas transfer valve, to control described fuel gas conveying pipe and/or the quantity of described combustion-supporting gas conveying pipe ventilation；The temperature of the combustion chamber that described die casting machine automatic fire-controlling system records according to temperature measuring equipment, control some fuel gas transfer valves and the break-make of combustion-supporting gas transfer valve, by controlling fuel gas conveying pipe and the quantity of combustion-supporting gas conveying pipe ventilation, can control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber.
It is also preferred that the left described fuel gas transfer valve and/or described combustion-supporting gas transfer valve are flow control valve；The temperature of the combustion chamber that described die casting machine automatic fire-controlling system records according to temperature measuring equipment, control fuel gas transfer valve and the flow of combustion-supporting gas transfer valve, fuel gas conveying pipe and/or the flow of combustion-supporting gas conveying pipe can be controlled easily, thus control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber.
In one embodiment, described die casting machine automatic fire-controlling system also includes programmable logic controller (PLC)；Described temperature measuring equipment is connected to the input of described programmable logic controller (PLC), described fuel gas transfer valve and described combustion-supporting gas transfer valve and is connected to the outfan of described programmable logic controller (PLC)；Temperature measuring equipment is connected to the input of programmable logic controller (PLC), fuel gas transfer valve and combustion-supporting gas transfer valve are connected to the outfan of programmable logic controller (PLC), control routine is write programmable logic controller (PLC), fuel gas transfer valve and combustion-supporting gas transfer valve can be controlled according to the measurement result of temperature measuring equipment easily, and then control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber.
Concrete, described temperature measuring equipment is temperature sensor；Described programmable logic controller (PLC), according to the temperature recorded of described temperature sensor, controls to enter combustion-supporting gas amount and the combustible gas scale of construction of described combustion chamber.
In another embodiment, described fuel gas transfer valve and described combustion-supporting gas transfer valve are respectively electromagnetic valve, and described temperature measuring equipment is temperature sensor；The end that controls of described fuel gas transfer valve and described combustion-supporting gas transfer valve is connected to the outfan of described temperature measuring equipment；By as the state in the temperature sensor measurement combustion chamber of temperature measuring equipment, and directly control fuel gas transfer valve and the break-make of combustion-supporting gas transfer valve or flow via measurement result, can control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber.
It is also preferred that the left described fuel gas is coal gas or natural gas；Described combustion-supporting gas is oxygen or air.
It is also preferred that the left the part described fuel gas conveying pipe being positioned at described fuel gas transfer valve downstream is connected with the part described combustion-supporting gas conveying pipe being positioned at described combustion-supporting gas transfer valve downstream；Fuel gas and combustion-supporting gas i.e. complete mixing before entering combustion chamber, reduce initial ignition difficulty and improve efficiency of combustion simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model die casting machine automatic fire-controlling system first embodiment.
Fig. 2 is the schematic diagram of this utility model die casting machine automatic fire-controlling system the second embodiment.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
As shown in Figure 1, the utility model discloses a kind of die casting machine automatic fire-controlling system, it is applied to be realized the die casting machine of heating by gas fuel burning, die casting machine includes combustion chamber A and is respectively communicated with fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a in combustion chamber A, and die casting machine automatic fire-controlling system includes being correspondingly arranged in the fuel gas transfer valve 100b of fuel gas conveying pipe 100a, being arranged at the combustion-supporting gas transfer valve 200b of combustion-supporting gas conveying pipe 200a and for measuring the temperature measuring equipment 300 of combustion chamber A temperature；Die casting machine automatic fire-controlling system controls fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b according to the measurement result of temperature measuring equipment 300, to realize fuel gas air inflow and the control of combustion-supporting gas air inflow.More specifically:
In this utility model die casting machine automatic fire-controlling system first embodiment shown in Fig. 1, die casting machine automatic fire-controlling system includes that fuel gas conveying pipe 100a and the fuel gas transfer valve 100b being arranged on fuel gas conveying pipe 100a, combustion-supporting gas carry pipe 200a and the combustion-supporting gas transfer valve 200b being arranged on combustion-supporting gas conveying pipe 200a, for measuring the temperature measuring equipment 300 of combustion chamber A temperature, and programmable logic controller (PLC) 400 (that is, PLC).
Wherein, temperature measuring equipment 300 is a temperature sensor.The outfan of temperature sensor 300 is connected to the outfan of programmable logic controller (PLC) 400, the measurement end 300a of temperature sensor 300 stretches in combustion chamber A, and the measurement end 300a of temperature sensor 300 is positioned at material pipe, gooseneck position, utilize material pipe, gooseneck position temperature as measure parameter, to control material pipe, the temperature at gooseneck position is within the scope of required temperature, thus ensureing to carry out the workpiece of die casting, all to reach die casting temperature required, it is ensured that workpiece die casting quality.Certainly, temperature sensor 300 can also be several, and several temperature sensors 300 are respectively arranged at the temperature of the difference in combustion chamber A, and the outfan of several temperature sensors 300 is connected to the input of programmable logic controller (PLC) 400.In this embodiment, the resistance varied with temperature is sent to programmable logic controller (PLC) 400 by the thermal resistance of temperature measuring equipment 300, and measures resistance via the resistance thermometry that programmable logic controller (PLC) 400 is built-in, go out actual temperature value by internal calculation.
In the present embodiment, the quantity of fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a is respectively provided with multiple, and the upper relative set one fuel gas transfer valve 100b or combustion-supporting gas transfer valve 200b respectively of arbitrary fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a, and the control end of some fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b is connected to an outfan of programmable logic controller (PLC) 400；Wherein, fuel gas transfer valve 100b or combustion-supporting gas transfer valve 200b all should be electromagnetic valve.nullCertainly，The control end of some fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b groups of can also be connected to an outfan of programmable logic controller (PLC) 400，Such as: on the outfan Y0 of programmable logic controller (PLC) 400, connect 1 fuel gas transfer valve 100b、2 fuel gas transfer valve 100b are connected on outfan Y1，4 fuel gas transfer valve 100b are connected on outfan Y2，Programmable logic controller (PLC) 400 according to temperature measurement result respectively through outfan Y0、Y1、Y2 exports control signal，Can control respectively to connect 1 fuel gas conveying pipe 100a、2 fuel gas conveying pipe 100a、4 fuel gas conveying pipe 100a，Programmable logic controller (PLC) 400 is also turned on according to temperature measurement result control output end Y0 and Y1，I.e. 3 fuel gas conveying pipe 100a of controlled turn-on，Programmable logic controller (PLC) 400 is also turned on according to temperature measurement result control output end Y0 and Y2，I.e. 5 fuel gas conveying pipe 100a of controlled turn-on，Those skilled in the art can arrange fuel gas transfer valve 100b and the quantity of combustion-supporting gas transfer valve 200b that programmable logic controller (PLC) 400 outfan connects under this enlightenment voluntarily，The quantity of outfan needed for minimizing programmable logic controller (PLC) 400，Reduce cost.In other embodiments being different from the present embodiment, can not also be by difference relative set one fuel gas transfer valve 100b or combustion-supporting gas transfer valve 200b on a fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a, but by various way solenoid valve, such as two-position four-way valve etc., realize an electromagnetic valve and control multiple fuel gas conveying pipe 100a or the purpose of combustion-supporting gas conveying pipe 200a break-make, cost can be reduced equally.Further, fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a can also the most only arrange one, being arranged at the fuel gas transfer valve 100b on fuel gas conveying pipe 100a and combustion-supporting gas conveying pipe 200a and combustion-supporting gas transfer valve 200b is electromagnetic flow valve, and via programmable logic controller (PLC) 400 according to the flow of the temperature control electromagnetic flow valve recorded, equally reach the combustible gas scale of construction and the purpose of combustion-supporting gas amount controlling to enter combustion chamber A.
Further, control routine is write programmable logic controller (PLC) 400, fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b can be controlled according to the measurement result of temperature measuring equipment 300 easily, and then control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber A.Additionally, by the control routine adjusting programmable logic controller (PLC) 400, the preset temperature of this utility model die casting machine automatic fire-controlling system both can be adjusted easily.Certainly, for simplifying operation further, the adjustment to preset temperature can also be realized by arranging man machine interface.
It is also preferred that the left as it is shown in figure 1, the part fuel gas conveying pipe 100 being positioned at fuel gas transfer valve 100a downstream is connected with the part combustion-supporting gas conveying pipe 200 being positioned at combustion-supporting gas transfer valve 200a downstream；Fuel gas and combustion-supporting gas i.e. complete mixing before entering combustion chamber A, reduce initial ignition difficulty and improve efficiency of combustion simultaneously.
In fig. 2, different from previous embodiment: die casting machine automatic fire-controlling system does not include programmable logic controller (PLC) 400, but fuel gas transfer valve 100b and/or combustion-supporting gas transfer valve 200b is directly controlled by temperature measuring equipment 300, thus control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber A, and then control the temperature in combustion chamber A.Concrete:
In the present embodiment, fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b is respectively electromagnetic valve, and temperature measuring equipment 300 is temperature sensor 300；The end that controls of fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b is connected to the outfan of temperature measuring equipment 300；The state in combustion chamber A is measured by the temperature sensor 300 as temperature measuring equipment, and fuel gas transfer valve 100b and the break-make of combustion-supporting gas transfer valve 200b is directly controlled via measurement result, can control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber A.In this embodiment, different from previous embodiment, the resistance that the output signal of temperature sensor 300 not varies with temperature, temperature sensor 300 output should be simple high level signal or low level signal, to control fuel gas transfer valve 100b and the break-make of combustion-supporting gas transfer valve 200b to the signal of fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b.
The required difference in functionality realized of temperature measuring equipment 300 in the first embodiment and the second embodiment, can realize by selecting the temperature sensor 300 of different model.
Fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b can also be respectively magnitude of current magnet valve, the state in combustion chamber A is measured by the temperature sensor 300 as temperature measuring equipment, and directly control fuel gas transfer valve 100b and the flow of combustion-supporting gas transfer valve 200b via measurement result, thus control to enter the combustible gas scale of construction and the combustion-supporting gas amount of combustion chamber A easily.
It should be appreciated that aforementioned fuel gas is coal gas or natural gas etc., aforementioned combustion-supporting gas is oxygen or air.
Compared with prior art, die casting machine automatic fire-controlling system disclosed in this utility model, one temperature measuring equipment 300 is set and measures the temperature of combustion chamber A, and the temperature of combustion chamber A that die casting machine automatic fire-controlling system records according to temperature measuring equipment 300, control fuel gas transfer valve 100b and the break-make of combustion-supporting gas transfer valve 200b or flow, reach to control to automatically control the combustible gas scale of construction and the combustion-supporting gas amount entering combustion chamber A, thus control the combustion position in die casting machine combustion chamber A, thus control the temperature in die casting machine combustion chamber A easily, it is at required temperature range.Die casting machine automatic fire-controlling system disclosed in this utility model, a kind of feedback system has been actually constituted: when temperature is too high in combustion chamber A by temperature measuring equipment 300, fuel gas transfer valve 100b and combustion-supporting gas transfer valve 200b, increase fuel gas and the air inflow of combustion-supporting gas, thus improve combustion chamber A temperature；When temperature is too low in combustion chamber A, reduces fuel gas and the air inflow of combustion-supporting gas, thus reduce combustion chamber A temperature, so that it is guaranteed that combustion chamber A is within the scope of required temperature.
Above disclosed it is only preferred embodiment of the present utility model, certainly can not limit the interest field of this utility model, the equivalent variations therefore made according to this utility model claim with this, still belong to the scope that this utility model is contained.
Claims (9)
1. a die casting machine automatic fire-controlling system, it is applied to be realized the die casting machine of heating by gas fuel burning, described die casting machine includes combustion chamber and is respectively communicated with the fuel gas in combustion chamber and carries pipe and combustion-supporting gas conveying pipe, it is characterised in that: described die casting machine automatic fire-controlling system includes being correspondingly arranged in the fuel gas transfer valve of described fuel gas conveying pipe, is arranged at the combustion-supporting gas transfer valve of described combustion-supporting gas conveying pipe and for measuring the temperature measuring equipment of described combustion chamber temperature；Described die casting machine automatic fire-controlling system controls described fuel gas transfer valve and described combustion-supporting gas transfer valve according to the measurement result of described temperature measuring equipment, to realize fuel gas air inflow and the control of combustion-supporting gas air inflow.
2. die casting machine automatic fire-controlling system as claimed in claim 1, it is characterised in that: described fuel gas conveying pipe and/or described combustion-supporting gas conveying pipe include several；Described die casting machine automatic fire-controlling system controls described fuel gas transfer valve and described combustion-supporting gas transfer valve, to control described fuel gas conveying pipe and/or the quantity of described combustion-supporting gas conveying pipe ventilation.
3. die casting machine automatic fire-controlling system as claimed in claim 1, it is characterised in that: described fuel gas transfer valve and/or described combustion-supporting gas transfer valve are flow control valve.
4. the die casting machine automatic fire-controlling system as described in any one of claim 1-3, it is characterised in that: described die casting machine automatic fire-controlling system also includes programmable logic controller (PLC)；Described temperature measuring equipment is connected to the input of described programmable logic controller (PLC), described fuel gas transfer valve and described combustion-supporting gas transfer valve and is connected to the outfan of described programmable logic controller (PLC).
5. die casting machine automatic fire-controlling system as claimed in claim 4, it is characterised in that: described temperature measuring equipment is temperature sensor；The temperature that described programmable logic controller (PLC) records according to described temperature sensor, controls to enter combustion-supporting gas amount and the combustible gas scale of construction of described combustion chamber.
6. the die casting machine automatic fire-controlling system as described in any one of claim 1-3, it is characterised in that: described fuel gas transfer valve and described combustion-supporting gas transfer valve are respectively electromagnetic valve, and described temperature measuring equipment is temperature sensor；The end that controls of described fuel gas transfer valve and described combustion-supporting gas transfer valve is connected to the outfan of described temperature measuring equipment.
7. die casting machine automatic fire-controlling system as claimed in claim 1, it is characterised in that: described fuel gas is coal gas or natural gas.
8. die casting machine automatic fire-controlling system as claimed in claim 1, it is characterised in that: described combustion-supporting gas is oxygen or air.
9. die casting machine automatic fire-controlling system as claimed in claim 1, it is characterised in that: the part described fuel gas conveying pipe being positioned at described fuel gas transfer valve downstream is connected with the part described combustion-supporting gas conveying pipe being positioned at described combustion-supporting gas transfer valve downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943857.7U CN205414375U (en) | 2015-11-23 | 2015-11-23 | Automatic accuse fire system of die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943857.7U CN205414375U (en) | 2015-11-23 | 2015-11-23 | Automatic accuse fire system of die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205414375U true CN205414375U (en) | 2016-08-03 |
Family
ID=56535140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943857.7U Expired - Fee Related CN205414375U (en) | 2015-11-23 | 2015-11-23 | Automatic accuse fire system of die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205414375U (en) |
-
2015
- 2015-11-23 CN CN201520943857.7U patent/CN205414375U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106642711B (en) | Dual sensing combustion system | |
| CN200940836Y (en) | Pulse control device for burner | |
| CN104534504B (en) | Rotary kiln combustion control device and method | |
| CN202709171U (en) | Combustion control system for coal-fired steam boiler | |
| CN206958963U (en) | A kind of kiln burning control system | |
| CN201311197Y (en) | Hydrogen gas sintering furnace gas circuit automatic control system | |
| CN104482658A (en) | Intelligent control system for gas-fired air heaters | |
| CN207365054U (en) | Sintering furnace combustion system | |
| CN205386628U (en) | Automatic automatic accuse fire system of die casting machine of combustion -supporting gas air input adjusts | |
| CN205414375U (en) | Automatic accuse fire system of die casting machine | |
| CN205414374U (en) | Automatic automatic accuse fire system of die casting machine of combustible gas air input adjusts | |
| CN201897579U (en) | Flow control device for simulated fire brand | |
| CN203744293U (en) | Numerical controlled gas combustion device | |
| CN202149504U (en) | Combustion control system of high-temperature kiln | |
| CN104296548A (en) | Temperature cascade control system of casting holding furnace and control method of temperature cascade control system | |
| CN206320786U (en) | A kind of combustion control system of pulverized-coal fired boiler | |
| CN204006102U (en) | Burner auxiliary fuel supply-system | |
| CN103225820B (en) | Chain grate furnace combustion optimization control system | |
| CN206320788U (en) | A kind of environment-friendly type automatically controls low index discharge gas fired-boiler unit | |
| CN206347720U (en) | A kind of new self-regulation pre-mixing gas combustion heating system | |
| CN203215746U (en) | Intelligent gas stove | |
| CN202141070U (en) | Combustion control device for gas injection boilers in oil fields | |
| CN213334372U (en) | Combustion heating system for mixing natural gas and air | |
| CN104482662A (en) | Biogas conduction oil supply boiler control system device and control method | |
| CN202639207U (en) | Excess air coefficient control device of titanium material forging heating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000, No. 89, Tong Tong Industrial Zone, Lin village, Tangxia Town, Guangdong, Dongguan Patentee after: Dongguan fast Precision Technology Co.,Ltd. Address before: 523000, No. 89, Tong Tong Industrial Zone, Lin village, Tangxia Town, Guangdong, Dongguan Patentee before: DONGGUAN FAST PRECISION HARDWARE 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: 20160803 |