CN206577936U - A kind of conditioning Tower water spray intelligence control system - Google Patents
A kind of conditioning Tower water spray intelligence control system Download PDFInfo
- Publication number
- CN206577936U CN206577936U CN201720112215.1U CN201720112215U CN206577936U CN 206577936 U CN206577936 U CN 206577936U CN 201720112215 U CN201720112215 U CN 201720112215U CN 206577936 U CN206577936 U CN 206577936U
- Authority
- CN
- China
- Prior art keywords
- water
- magnetic valve
- local controller
- conditioning tower
- control system
- 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.)
- Active
Links
Landscapes
- Flow Control (AREA)
Abstract
The utility model discloses a kind of conditioning Tower water spray intelligence control system, including remote controllers, host computer, Local Controller, water pump, water tank, pressure sensor, liquid level sensor, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve, the second magnetic valve, first jet group, second nozzle group and temperature sensor, the intelligence control system system is by monitoring the temperature of conditioning Tower exit flue gas, adjust the injection flow rate of conditioning Tower inner nozzle, and then the temperature of remote control regulation conditioning Tower exit flue gas.The utility model control system, can both realize remote control, can also on the spot be controlled by live host computer, and operation stability is high, and control effect is good, give full play to the effect that conditioning Tower carries out humidification drop resistance to flue gas.
Description
Technical field
The utility model is related to spray water control system, more particularly to a kind of conditioning Tower water spray intelligence control system.
Background technology
Conditioning Tower primarily serves increase smoke moisture, reduction ratio resistance value and reduces the effect of gas temperature, conditioning Tower spray
The quality of water control system directly affects the effect of follow-up cottrell dedusting.If water spray control is bad, conditioning Tower can be caused
Bottom overly moist, influences the safe and stable operation and dust collection effect of bottom conveying equipment.The water spray of current conditioning Tower controls inadequate intelligence
Can, it is impossible to adapt to changeable production environment.
Utility model content
For above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of conditioning Tower water spray intelligence
Energy control system, its control effect is good, can adjust injection flow rate and irrigation pressure according to outlet temperature of humidifying tower in time, it is ensured that increase
The stability of wet tower function.
To achieve these goals, the technical solution adopted in the utility model is as follows：
A kind of conditioning Tower water spray intelligence control system, including remote controllers, host computer, Local Controller, water pump, water
Case, pressure sensor, liquid level sensor, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve, the second magnetic valve, first
Nozzle sets, second nozzle group and temperature sensor；
The remote controllers, host computer, Local Controller, water pump, water tank, pressure sensor, liquid level sensor, backwater
Magnetic valve, circling water flow rate regulating valve, the first magnetic valve, the second magnetic valve are located at outside the conditioning Tower；
The first jet group and the second nozzle group are located at the middle and upper part in the conditioning Tower tower body, and the temperature is passed
Sensor is located at the conditioning Tower exit；
First magnetic valve and the first jet group are concatenated along water (flow) direction by pipeline, second magnetic valve and
The second nozzle group is concatenated along water (flow) direction by pipeline, the concatenation where first magnetic valve and the first jet group
Pipeline constitutes the first parallel pipeline, the backwater electricity with the pipeline that concatenates where second magnetic valve and the second nozzle group
Magnet valve constitutes the second parallel pipeline with the circling water flow rate regulating valve, and the water side of first parallel pipeline passes through pipeline and institute
State the water inlet end connection of the second parallel pipeline, the water side of second parallel pipeline along water (flow) direction by pipeline successively with institute
Water tank, water pump connection are stated, the water side of the water pump is connected with the water inlet end of first parallel pipeline；
Between the water side of the water inlet end and the water pump of one end of the pressure sensor and first parallel pipeline
Pipeline connection, the other end electrically connects with the Local Controller；One end of the liquid level sensor is connected with the water tank, separately
One end is electrically connected with the Local Controller；The backwater magnetic valve and the circling water flow rate regulating valve are controlled on the spot with described respectively
Device electrical connection processed；First magnetic valve, second magnetic valve are electrically connected with the Local Controller successively；The temperature is passed
Sensor is electrically connected with the Local Controller；
The host computer and the remote controllers are communicatively connected with the Local Controller respectively.
Further, the Local Controller and the host computer carry out MPI communications, the Local Controller with it is described remote
Range controller carries out Profibus-dp communications.
Further, the water pump is high-pressure hydraulic pump.
Further, the pressure sensor monitors the pressure value of the pump outlet in real time, and by described in monitoring
Pressure value is sent to the Local Controller.
Further,
If the pressure value is opened higher than the upper pressure limit setting value in the Local Controller, the Local Controller
The backwater magnetic valve, while the circling water flow rate control valve opening is transferred into 100%, closes the water pump and is quickly let out
Pressure；
If the pressure value is less than the low pressure limit setting value in the Local Controller, close in time the water pump,
First magnetic valve and second magnetic valve, carry out trouble shooting.
Further, the backwater magnetic valve is normally close valve,
During normal operation, backwater magnetic valve is closed always；
When the pressure value is higher than the upper pressure limit setting value in the Local Controller, the backwater magnetic valve obtains electric
Open afterwards and carry out pressure release；
When the system is out of service, the backwater magnetic valve is opened and current is back in the water tank.
Further, the liquid level sensor monitors the level value of water tank in real time, and the level value of monitoring is sent
Input to the Local Controller.
Further,
When the level value is less than moisturizing level set value in the Local Controller, the Local Controller is to institute
State remote controllers and send high water tank alarm signal, the remote controllers and then control corresponding equipment to enter the water tank
Row moisturizing；
When the level value is higher than the upper limit level setting value in the Local Controller, the remote controllers stop
Moisturizing is carried out to the water tank.
Further, the temperature sensor monitors the temperature of the conditioning Tower exiting flue gas in real time, and by the institute of monitoring
State conditioning Tower exit gas temperature value and be sent to the Local Controller.
Further, the flue-gas temperature value that temperature sensor described in the Local Controller real-time reception is sent, and
The flue-gas temperature value and interior temperature setpoint are compared in real time；And the Local Controller is according to the flue gas
The comparative result of temperature value and the interior temperature setpoint adjusts the aperture of the circling water flow rate regulating valve by PID controller
With the on off state of second magnetic valve to control the injection flow rate of the second nozzle group.
Further, the Local Controller, host computer, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve and
Second magnetic valve is all powered by uninterrupted power source UPS, when occurring power-off fault, it is ensured that the water in water pipe can be back to water tank
It is interior.
The master control flow of conditioning Tower water spray intelligence control system is as follows：
(1) remote controllers carry out moisturizing according to the signal of the liquid level sensor received to water tank, and according to raw material
The running status of mill sends desired temperature to Local Controller in real time；
(2) when the system that exit gas temperature value exceedes in Local Controller starts setting value, Local Controller is opened
First magnetic valve and backwater magnetic valve, while controlling circling water flow rate control valve opening to be 100%, delay opens water pump after 1 minute；
(3) backwater magnetic valve is closed after water pump is opened, starts PID controller, closed-loop control is carried out, to control circling water flow rate
The running status of the aperture of regulating valve and the second magnetic valve；
(4) when exit gas temperature value starts setting value less than the system in Local Controller, switch off the pump, open back
Water solenoid valve, 100% is adjusted to by circling water flow rate control valve opening, is made water quick backflow in water pipe in water tank, is delayed 2 minutes
Afterwards, the first magnetic valve and backwater magnetic valve are closed, while halt system is run.
Further, the closed-loop control flow during conditioning Tower water spray intelligence control system work is as follows：Conditioning Tower is sprayed
When water system works, the first magnetic valve is in open mode, the exiting flue gas temperature of Local Controller real-time reception temperature sensor
The exit gas temperature value and interior temperature setpoint are simultaneously compared by angle value, are calculated in real time by PID controller, output letter
Number control the aperture of circling water flow rate regulating valve：
If exit gas temperature value is higher than the desired temperature, injection flow rate is not enough, now reduces the circling water flow rate
The aperture of regulating valve；
If exit gas temperature value is less than the desired temperature, injection flow rate is excessive, now increases the circling water flow rate
The aperture of regulating valve.
The second magnetic valve running status is controlled according to circling water flow rate control valve opening simultaneously：
If the second magnetic valve that circling water flow rate control valve opening drops to inside controller opens up definite value, show only to open
One magnetic valve can less meet the demand of injection flow rate, now open the second magnetic valve to ensure the performance of conditioning Tower；
If the second magnetic valve that circling water flow rate regulating valve is risen to inside controller closes setting value, show only to open the first electricity
Magnet valve can also meet the demand of injection flow rate, now close the second magnetic valve.
The utility model control system intelligence degree is high, and reaction speed is fast, perfect in shape and function, friendly interface, with long-range control
Device processed carries out data interaction in real time, can long-time safe and stable operation.
Brief description of the drawings
Fig. 1 is the utility model conditioning Tower water spray intelligence control system primary structure schematic diagram；
Fig. 2 is the utility model conditioning Tower water spray intelligence control system loop control theory figure；
Fig. 3 is circling water flow rate control valve opening hysteresis loop comparator schematic diagram.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiment and attached
Figure, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
Conditioning Tower water spray intelligence control system of the present utility model includes remote controllers, host computer, Local Controller, water
Pump, water tank, pressure sensor, liquid level sensor, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve (i.e. magnetic valve
1), the second magnetic valve (i.e. magnetic valve 2), first jet group (i.e. nozzle sets 1), second nozzle group (i.e. nozzle sets 2) and temperature
Sensor；
Remote controllers, host computer, Local Controller, water pump, water tank, pressure sensor, liquid level sensor, backwater electromagnetism
Valve, circling water flow rate regulating valve, the first magnetic valve, the second magnetic valve are located at outside conditioning Tower；
First jet group and second nozzle group are located at the middle and upper part in conditioning Tower tower body, and temperature sensor goes out positioned at conditioning Tower
At mouthful；
First magnetic valve and first jet group are concatenated along water (flow) direction by pipeline, the second magnetic valve and second nozzle group edge
Water (flow) direction is concatenated by pipeline, concatenation pipeline and the second magnetic valve and the second spray where the first magnetic valve and first jet group
Concatenation pipeline where mouth group constitutes the first parallel pipeline, and backwater magnetic valve constitutes the second parallel transistor with circling water flow rate regulating valve
Road, the water side of the first parallel pipeline is connected by pipeline with the water inlet end of the second parallel pipeline, the water outlet of the second parallel pipeline
End is connected with water tank, water pump successively along water (flow) direction by pipeline, and the water side of water pump and the water inlet end of the first parallel pipeline connect
Connect；
Pipeline connection between the water side of the water inlet end and water pump of one end of pressure sensor and the first parallel pipeline, separately
One end is electrically connected with Local Controller；One end of liquid level sensor is connected with water tank, and the other end is electrically connected with Local Controller；Return
Water solenoid valve and circling water flow rate regulating valve are electrically connected with Local Controller respectively；First magnetic valve, the second magnetic valve successively with just
Ground controller electrical connection；Temperature sensor is electrically connected with Local Controller；
Host computer and remote controllers are communicatively connected with Local Controller respectively.
Preferably, Local Controller and host computer carry out MPI communications.
Preferably, conditioning Tower water spray intelligence control system, Local Controller and remote controllers carry out Profibus-dp and led to
News.
Local Controller, host computer, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve and the second magnetic valve are all
It is to be powered by UPS (uninterrupted power source).During generation power-off fault, operating personnel still can open first by host computer
Magnetic valve, the second magnetic valve and backwater magnetic valve, make water be back in water tank.
As shown in figure 1, the Local Controller in Fig. 1 is the control core part of this control system, all techniques are completed
Control and sequential interlocking protect control function.Local Controller and host computer carry out MPI communications, by technological parameter, running status
Host computer is sent to warning message, and host computer is shown and stored to above-mentioned technological parameter, running status and warning message；
Operating personnel can also be operated by host computer simultaneously.Local Controller and remote controllers carry out Profibus-dp and led to
Technological parameter, running status and warning message are also passed to remote controllers by news, Local Controller, and remote controllers connect in real time
Receive technological parameter, running status and the warning message of Local Controller transmission and it is shown and recorded, while according to just
The high water tank alarm signal that ground controller transmission comes carries out moisturizing to water tank.And long-range ventilating controller can export conditioning Tower
The desired temperature of place's flue gas sends Local Controller to.
Liquid level sensor monitors the water position status of water tank in real time.When level value is set less than the moisturizing liquid level in Local Controller
During definite value, liquid level sensor just sends high water tank alarm signal, remote controllers by Local Controller to remote controllers
And then control corresponding equipment to carry out moisturizing to water tank；When level value is higher than upper limit level setting value, remote controllers stop
Moisturizing is carried out to water tank.
Water pump uses high-pressure hydraulic pump in embodiment of the present utility model, it can be ensured that water pressure invariableness, it is ensured that nozzle
Atomizing effect.
Pressure sensor monitors the pressure value of pump outlet in real time.If pressure value is higher than upper pressure limit setting value, beat
Backwater magnetic valve is driven, circling water flow rate control valve opening is transferred to 100%, switch off the pump carry out quick pressure releasing；If pressure value is less than
Low pressure limit setting value, then switch off the pump, the first magnetic valve and the second magnetic valve in time, carries out trouble shooting.
Backwater magnetic valve is normally close valve, when normally running, and backwater magnetic valve is closed always.When pressure sensor is measured
Pressure value be higher than upper pressure limit setting value when, backwater magnetic valve obtains electric, backwater magnetic valve open carry out pressure release；When system stops
During operation, backwater magnetic valve can be also opened, current is back in water tank.
First magnetic valve, the second magnetic valve and circling water flow rate regulating valve are the main executing agencies of system water-carrying capacity regulation,
System controls nozzle by adjusting the aperture of the first magnetic valve, the on off state of the second magnetic valve and circling water flow rate regulating valve
Injection flow rate.
Temperature sensor is installed in conditioning Tower exit, for monitoring conditioning Tower exit gas temperature value in real time.System is led to
Injection flow rate is overregulated to control the temperature of conditioning Tower exit flue gas.
The core of conditioning Tower spray water control system is exactly to adjust injection flow rate to control the temperature of conditioning Tower exiting flue gas.This control
System core control principle processed as shown in Fig. 2 change desired temperature, using PID control automatically according to raw mill running status
The aperture of device closed-loop control circling water flow rate regulating valve, the operation shape of the second magnetic valve is controlled with hysteresis loop comparator as shown in Figure 3
State.
The utility model control system master control flow is as follows：Remote controllers are according to the letter of the liquid level sensor received
Number moisturizing is carried out to water tank, and Local Controller to is sent desired temperature according to the running status of raw mill in real time.
When the system that the exit gas temperature value of temperature sensor exceedes in Local Controller starts setting value, Local Controller is opened
First magnetic valve and backwater magnetic valve, while controlling circling water flow rate control valve opening to be 100%, delay opens water pump after 1 minute；
Water pump closes backwater magnetic valve after opening, and starts PID controller, closed-loop control is carried out, to control opening for circling water flow rate regulating valve
The running status of degree and the second magnetic valve；When the exit gas temperature value of temperature sensor is opened less than the system in Local Controller
During dynamic setting value, switch off the pump, open backwater magnetic valve, circling water flow rate control valve opening is adjusted to 100%, makes the water in water pipe
Quick backflow after delay 2 minutes, closes the first magnetic valve and backwater magnetic valve, while halt system is run in water tank.
Wherein closed-loop control idiographic flow is following (as shown in Figure 2)：When conditioning Tower water injection system works, at the first magnetic valve
In open mode, the exit gas temperature value of Local Controller real-time reception temperature sensor and by the exit gas temperature value and
Internal desired temperature is compared, and is calculated in real time by PID controller, exports 4~20mA signals to control circling water flow rate
The aperture of regulating valve：
If exit gas temperature value is higher than desired temperature, injection flow rate is not enough, now reduces circling water flow rate regulating valve
Aperture；
If exit gas temperature value is less than desired temperature, injection flow rate is excessive, now increases circling water flow rate regulating valve
Aperture.
Local Controller controls the second magnetic valve running status (such as Fig. 3 institutes according to circling water flow rate control valve opening simultaneously
Show)：
If the second magnetic valve that circling water flow rate control valve opening drops to inside controller opens up definite value, show only to open
One magnetic valve can less meet the demand of injection flow rate, now open the second magnetic valve to ensure the performance of conditioning Tower；
If the second magnetic valve that circling water flow rate regulating valve is risen to inside controller closes setting value, show only to open the first electricity
Magnet valve can also meet the demand of injection flow rate, now close the second magnetic valve.
The utility model conditioning Tower sprays water intelligence control system using Local Controller as control core, in real time by technique
Parameter is shown in host computer, and carries out data exchange with remote controllers, and automaticity is high, in real time control, real real
Show the intelligent control of conditioning Tower water spray, can automatically stable operation.
Above example only expresses embodiment of the present utility model, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for one of ordinary skill in the art
For, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (10)
- The intelligence control system 1. a kind of conditioning Tower is sprayed water, it is characterised in that including remote controllers, host computer, Local Controller, Water pump, water tank, pressure sensor, liquid level sensor, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve, the second electromagnetism Valve, first jet group, second nozzle group and temperature sensor；The remote controllers, host computer, Local Controller, water pump, water tank, pressure sensor, liquid level sensor, backwater electromagnetism Valve, circling water flow rate regulating valve, the first magnetic valve, the second magnetic valve are located at outside the conditioning Tower；The first jet group and the second nozzle group are located at the middle and upper part in the conditioning Tower tower body, the temperature sensor Positioned at the conditioning Tower exit；First magnetic valve and the first jet group are concatenated along water (flow) direction by pipeline, second magnetic valve and described Second nozzle group is concatenated along water (flow) direction by pipeline, the concatenation pipeline where first magnetic valve and the first jet group The first parallel pipeline, the backwater magnetic valve are constituted with the pipeline that concatenates where second magnetic valve and the second nozzle group The second parallel pipeline is constituted with the circling water flow rate regulating valve, and the water side of first parallel pipeline passes through pipeline and described the The water inlet end connection of two parallel pipelines, the water side of second parallel pipeline along water (flow) direction by pipeline successively with the water Case, water pump connection, the water side of the water pump is connected with the water inlet end of first parallel pipeline；Pipe between the water side of the water inlet end and the water pump of one end of the pressure sensor and first parallel pipeline Road is connected, and the other end is electrically connected with the Local Controller；One end of the liquid level sensor is connected with the water tank, the other end Electrically connected with the Local Controller；The backwater magnetic valve and the circling water flow rate regulating valve respectively with the Local Controller Electrical connection；First magnetic valve, second magnetic valve are electrically connected with the Local Controller successively；The temperature sensor Electrically connected with the Local Controller；The host computer and the remote controllers are communicatively connected with the Local Controller respectively.
- The intelligence control system 2. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the Local Controller with it is described Host computer carries out MPI communications.
- The intelligence control system 3. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the Local Controller with it is described Remote controllers carry out Profibus-dp communications.
- The intelligence control system 4. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the backwater magnetic valve is normally closed Valve, and the backwater magnetic valve only when the pressure value is higher than upper pressure limit setting value in the Local Controller or The system is opened when out of service.
- The intelligence control system 5. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the water pump is high-pressure hydraulic pump.
- The intelligence control system 6. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the Local Controller, upper Machine, backwater magnetic valve, circling water flow rate regulating valve, the first magnetic valve and the second magnetic valve are all powered by uninterrupted power source UPS.
- The intelligence control system 7. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the pressure sensor is used for real When monitor the pressure value of the pump outlet, and the pressure value of monitoring is sent to the Local Controller.
- The intelligence control system 8. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the liquid level sensor is used for real When monitor the level value of the water tank, and the level value of monitoring is sent to the Local Controller.
- The intelligence control system 9. conditioning Tower as claimed in claim 1 is sprayed water, it is characterised in that the temperature sensor is used for real When monitor the temperature of the conditioning Tower exiting flue gas, and by the conditioning Tower exit gas temperature value of monitoring be sent to it is described just Ground controller.
- The intelligence control system 10. conditioning Tower as claimed in claim 9 is sprayed water, it is characterised in that the Local Controller is used for The flue-gas temperature value that temperature sensor described in real-time reception is sent, and in real time by the flue-gas temperature value and internal temperature Setting value is compared, and the Local Controller is used for the comparison according to the flue-gas temperature value and the interior temperature setpoint As a result the aperture of the circling water flow rate regulating valve and the on off state of second magnetic valve are adjusted by PID controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620730312 | 2016-07-12 | ||
| CN2016207303122 | 2016-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206577936U true CN206577936U (en) | 2017-10-24 |
Family
ID=60111457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720112215.1U Active CN206577936U (en) | 2016-07-12 | 2017-02-07 | A kind of conditioning Tower water spray intelligence control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206577936U (en) |
-
2017
- 2017-02-07 CN CN201720112215.1U patent/CN206577936U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205949123U (en) | Industrial area ground dust fall system that executes according to wind speed and humidity control water spray speed | |
| CN202228922U (en) | Energy saving management unit for pipeline gas supply | |
| CN101280942B (en) | Novel self-supplying power source numerical control energy-saving apparatus | |
| CN201373523Y (en) | High-pressure micro-mist humidifier | |
| CN104793671A (en) | Temperature and humidity regulating system and temperature and humidity regulating method of control cubicle of intelligent substation | |
| CN204497749U (en) | Be provided with the comprehensive generating system of reactive power compensator | |
| CN206577936U (en) | A kind of conditioning Tower water spray intelligence control system | |
| CN105618293A (en) | Stable-pressure water supply spraying device and use method thereof | |
| CN207322192U (en) | A kind of edible fungus industrial production humidification system | |
| CN201302260Y (en) | Intelligent central air conditioner closed loop control system | |
| CN209167905U (en) | Automatic control system for landscape circulating water body | |
| CN207814014U (en) | A kind of novel dust removing fan energy-saving control system | |
| CN110779136A (en) | Micro-fog control system and control method for air conditioner | |
| CN202835680U (en) | Intelligent spray cooling system of air-cooled air conditioning unit | |
| CN203764473U (en) | Spraying machine | |
| CN213901333U (en) | Intelligent spray type humidifier | |
| CN201561520U (en) | Industrial electrostatic prevention automatic humidification system | |
| CN207527766U (en) | A kind of micro- mist humidifier water supply installation of air-conditioning | |
| CN209228416U (en) | The gas source apparatus for fast switching of steam feed pump | |
| CN203324741U (en) | Frequency-conversion speed-regulation control system | |
| CN202350246U (en) | Closed-loop direct water supply type humidification system | |
| CN213362710U (en) | Factory building cooling system with atomizer and water wheels fan | |
| CN202501599U (en) | Intelligent energy-saving controller used in ground-source heat pump central air-conditioning system | |
| CN201225723Y (en) | Novel self-supplying energy resource numerical control energy-saving apparatus | |
| CN208107270U (en) | Long-range control gas pressure regulator, governor and its burnt gas wall hanging furnace for installing the gas pressure regulator, governor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220527 Address after: 100000 room 1201, Ganjiakou building, No. 17, Sanlihe Road, Haidian District, Beijing Patentee after: Sinoma overseas technology development Co.,Ltd. Address before: 100037 floor 12, No.17, Sanlihe Road, Haidian District, Beijing Patentee before: SINOMA OVERSEAS DEVELOPMENT CO.,LTD. |
|
| TR01 | Transfer of patent right |