CN110319595A - Aquation workshop boiler water intelligence control system and method - Google Patents
Aquation workshop boiler water intelligence control system and method Download PDFInfo
- Publication number
- CN110319595A CN110319595A CN201910616638.0A CN201910616638A CN110319595A CN 110319595 A CN110319595 A CN 110319595A CN 201910616638 A CN201910616638 A CN 201910616638A CN 110319595 A CN110319595 A CN 110319595A
- Authority
- CN
- China
- Prior art keywords
- water
- boiler
- aquation
- standard quantity
- module
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 364
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000036571 hydration Effects 0.000 abstract description 5
- 238000006703 hydration reaction Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 9
- 238000011835 investigation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The present invention relates to power plant's hydration processes field more particularly to aquation workshop boiler water intelligence control systems and method.Its technical solution are as follows: aquation workshop boiler water intelligence control system, including main controller, main controller include standard quantity of water presetting module, water detecting module, water comparison module, adjustment module.Aquation workshop boiler water intelligent control method includes the following steps: the standard quantity of water of default boiler；Detect the timely water of boiler；The timely water of boiler is compared in real time with standard quantity of water；According to the on-off of result control water inlet pipe or outlet pipe that water compares.The present invention provides a kind of aquation workshop boiler water intelligence control system and method, solve the problems, such as existing aquation workshop boiler water can only manual adjustment and to adjust not in time, adjust that carry out precision low.
Description
Technical field
The present invention relates to power plant's hydration processes field more particularly to aquation workshop boiler water intelligence control system and sides
Method.
Background technique
Chemical combination occurs for substance and water hydration, and also known as aquation (refers generally to molecule or hydration of ion.)
Aqueous solution intermediate ion exists generally in the form of ion hydration.The positive and negative charge-site of hydrone is not overlapped, and is dipole
Son.It has very strong hydrogen bond action again, and Gu Shui has special structure.When salt generation electrolyte solution soluble in water, from
The electrostatic force of son destroys original water-bound, and certain water molecule layer, referred to as aquation are formed around it.
The boiler in aquation workshop needs to control water and is in reasonable interval, just can guarantee the positive production of aquation and efficiently carries out.
The boiler water in existing aquation workshop can only adjust boiler water in such a way that artificial observation water is in manual adjustment water
Amount, this mode not only increase worker's workload, not can guarantee the timeliness of boiler runoff investigation, the essence of boiler runoff investigation also
True property not can guarantee yet.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, a kind of aquation workshop boiler water intelligence control system and side are provided
Method, solve existing aquation workshop boiler water can only manual adjustment and to adjust not in time, adjust and carry out that precision is low asks
Topic.
In order to solve the above technical problems, the invention adopts the following technical scheme:
Aquation workshop boiler water intelligence control system, including main controller, main controller include the standard for boiler to be arranged
The standard quantity of water presetting module of water, is used for timely water and standard water the water detecting module for detecting boiler water
Amount does the water comparison module compared, the adjustment module for adjusting boiler water.
As a preferred solution of the present invention, the standard quantity of water presetting module includes standard quantity of water typing unit: being used for people
Work is by standard quantity of water typing main controller.
As a preferred solution of the present invention, the water detecting module includes water level detector, and water level detector is installed on
In boiler, water level detector is electrically connected with water scaling unit.
As a preferred solution of the present invention, the water comparison module includes water comparing unit, and standard quantity of water presets mould
Block and water detecting module are electrically connected with water comparing unit.
As a preferred solution of the present invention, the adjustment module has been electrically connected inlet water solenoid valve, feed water flow meter, has gone out
Water solenoid valve and water flow meter, inlet water solenoid valve and feed water flow meter are mounted on the water inlet pipe of boiler, water outlet solenoid valve
It is installed on the outlet pipe of boiler with water flow meter.
As a preferred solution of the present invention, the water comparison module is electrically connected with adjustment module, is arranged in adjustment module
Have electromagnetic relay, the normally open contact of electromagnetic relay is electrically connected with inlet water solenoid valve, the normally closed interlock of electromagnetic relay with go out
Water solenoid valve electrical connection.
Aquation workshop boiler water intelligent control method, includes the following steps:
The standard quantity of water of default boiler；
Detect the timely water of boiler；
The timely water of boiler is compared in real time with standard quantity of water；
According to the on-off of result control water inlet pipe or outlet pipe that water compares.
As a preferred solution of the present invention, when detecting the timely water of boiler, boiler water is detected using water level sensor
Position, then water consumption scaling unit converse the timely water in boiler.
As a preferred solution of the present invention, when being compared the timely water of boiler and standard quantity of water in real time, will compare
The adjustment module of main controller is output to result.
As a preferred solution of the present invention, when the on-off of control water inlet pipe or outlet pipe, by the adjustment module control of main controller
The on-off of water inlet pipe and outlet pipe processed is discharged using feed water flow meter real-time monitoring inflow with water flow meter real-time monitoring
Amount.
Compared with prior art, the beneficial effects of the present invention are:
1, standard quantity of water presetting module is set on main controller of the present invention, can be used for presetting the standard quantity of water of boiler.Water is visited
The water in boiler can be detected in time by surveying module, and be compared standard quantity of water and timely water by water comparison module, thus
Judge the difference of water and standard quantity of water in boiler.Adjustment module can compare situation according to water, it is corresponding adjust water inlet pipe and
The on-off of outlet pipe, until timely water is identical as standard quantity of water, aqueduct valve is closed, and realizes the reality of aquation workshop boiler water
When adjust.Due to the adjusting of boiler water have main controller control, it can be achieved that water timely adjusting, guarantee the boiler water moment at
In normal range (NR).For manual adjustment water, method of the invention reduces the workload of worker, and the tune of water
It saves more accurate, has correspondinglyd increase the efficiency and effect in aquation workshop.
2, by boiler water required for the prior typing of standard quantity of water typing unit, facilitate according to the setting of various operating conditions not
Same standard boiler water value.
3, water level detector energy real-time detection water level in the boiler height, then timely water is calculated by water scaling unit,
The convenient water amount information collected in boiler in time and accurately.
4, water comparing unit can be compared in real time standard quantity of water and timely water, and comparison result is exported.It is logical
The automatic comparison of water amount comparing unit significantly reduces the workload of worker, and compare more quickly and precisely.
5, when timely water is lower than standard quantity of water, this information is transferred to adjustment module by water comparison module, adjusts mould
Block controls water outlet solenoid valve closing, inlet water solenoid valve is opened.When the flow of feed water flow meter statistics reaches water comparing unit ratio
Pair water difference when, adjustment module control inlet water solenoid valve close.When timely water is higher than standard quantity of water, water compares mould
This information is transferred to adjustment module by block, and adjustment module controls inlet water solenoid valve closing, water outlet solenoid valve is opened.Work as water flow
When the flow of meter statistics reaches the water difference of water comparing unit comparison, adjustment module controls water outlet solenoid valve and closes.Therefore,
Adjustment module can accurately regulating pondage, guarantee that timely water reaches standard value.
6, when timely water is lower than standard quantity of water, the normally open contact closure of electromagnetic relay, inlet water solenoid valve is connected, real
Now intake.When timely water is higher than standard quantity of water, the normally closed interlock closure of electromagnetic relay, water outlet solenoid valve is connected, is realized
Water outlet.Therefore, electromagnetic relay can accurately control inlet water solenoid valve and water outlet solenoid valve, and inlet water solenoid valve and water outlet electromagnetism
Valve has been only possible to one in closed state always, guarantees the validity of runoff investigation.
7, real by carrying out the timely water of boiler and standard quantity of water in aquation workshop boiler water intelligent control method
When compare, further according to water compare result control water inlet pipe or outlet pipe on-off.Until timely water and standard quantity of water phase
Together, aqueduct valve is closed, and realizes the real-time adjusting of aquation workshop boiler water.The invention enables the tune of aquation workshop boiler water
Section is much sooner and accurately.
8, when detecting the timely water of boiler, boiler water level, then water consumption scaling unit are detected using water level sensor
The timely water in boiler is conversed, guarantees the timely water for obtaining boiler in real time, to guarantee the timeliness of runoff investigation.
9, when being compared the timely water and standard quantity of water of boiler in real time, adjustment module can obtain comparison knot in time
Fruit, and can be reacted according to comparison result, realize the intelligent control of runoff investigation.
10, when the on-off of control water inlet pipe or outlet pipe, feed water flow meter real-time monitoring inflow is real with water flow meter
When monitor water yield, guarantee that inflow or water yield compare that difference is identical with water, the accurate adjusting of guarantee boiler water.
Specific embodiment
The present invention is described in detail below.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
Embodiment one
Aquation workshop boiler water intelligence control system, including main controller, main controller include the standard for boiler to be arranged
The standard quantity of water presetting module of water, is used for timely water and standard water the water detecting module for detecting boiler water
Amount does the water comparison module compared, the adjustment module for adjusting boiler water.Standard quantity of water is set on main controller of the present invention
Presetting module can be used for presetting the standard quantity of water of boiler.Water detecting module can detect the water in boiler in time, and by water
Comparison module compares standard quantity of water and timely water, to judge the difference of water and standard quantity of water in boiler.It adjusts
Module can compare situation, the corresponding on-off for adjusting water inlet pipe and outlet pipe, until timely water and standard quantity of water phase according to water
Together, aqueduct valve is closed, and realizes the real-time adjusting of aquation workshop boiler water.Since the adjusting of boiler water has main controller control
The timely adjusting, it can be achieved that water is made, guarantees that the boiler water moment is in normal range (NR).For manual adjustment water,
Method of the invention reduces the workload of worker, and the adjusting of water is more accurate, has correspondinglyd increase the effect in aquation workshop
Rate and effect.
Embodiment two
On the basis of example 1, the standard quantity of water presetting module includes standard quantity of water typing unit: for artificial
By standard quantity of water typing main controller.
By boiler water required for the prior typing of standard quantity of water typing unit, facilitates and difference is set according to various operating conditions
Standard boiler water value.
Embodiment three
On the basis of embodiment one or embodiment two, the water detecting module includes water level detector, water-level detecting
Device is installed in boiler, and water level detector is electrically connected with water scaling unit.
Water level detector energy real-time detection water level in the boiler height, then timely water is calculated by water scaling unit, side
Just the water amount information in boiler is collected in time and accurately.
Example IV
In the water comparison module includes water comparing unit, standard on the basis of above-mentioned any one embodiment
Water presetting module and water detecting module are electrically connected with water comparing unit.
Water comparing unit can be compared in real time standard quantity of water and timely water, and comparison result is exported.Pass through
The automatic comparison of water comparing unit significantly reduces the workload of worker, and compare more quickly and precisely.
Embodiment five
On the basis of above-mentioned any one embodiment, the adjustment module has been electrically connected inlet water solenoid valve, water inlet
Flowmeter, water outlet solenoid valve and water flow meter, inlet water solenoid valve and feed water flow meter are mounted on the water inlet pipe of boiler, out
Water solenoid valve and water flow meter are installed on the outlet pipe of boiler.
When timely water is lower than standard quantity of water, this information is transferred to adjustment module, adjustment module by water comparison module
Control water outlet solenoid valve closing, inlet water solenoid valve is opened.It is compared when the flow of feed water flow meter statistics reaches water comparing unit
Water difference when, adjustment module control inlet water solenoid valve close.When timely water is higher than standard quantity of water, water comparison module
This information is transferred to adjustment module, adjustment module controls inlet water solenoid valve closing, water outlet solenoid valve is opened.When water flow meter
When the flow of statistics reaches the water difference of water comparing unit comparison, adjustment module controls water outlet solenoid valve and closes.Therefore, it adjusts
Save module can accurately regulating pondage, guarantee that timely water reaches standard value.
Embodiment six
On the basis of above-mentioned any one embodiment, the water comparison module is electrically connected with adjustment module, adjusts mould
Electromagnetic relay is provided on block, the normally open contact of electromagnetic relay is electrically connected with inlet water solenoid valve, electromagnetic relay it is normally closed
Contact is electrically connected with water outlet solenoid valve.
When timely water is lower than standard quantity of water, the normally open contact closure of electromagnetic relay, inlet water solenoid valve is connected, is realized
Water inlet.When timely water is higher than standard quantity of water, the normally closed interlock closure of electromagnetic relay, water outlet solenoid valve is connected, is realized out
Water.Therefore, electromagnetic relay can accurately control inlet water solenoid valve and water outlet solenoid valve, and inlet water solenoid valve and water outlet solenoid valve
Always one has been only possible in closed state, guarantees the validity of runoff investigation.
Embodiment seven
Aquation workshop boiler water intelligent control method, includes the following steps:
The standard quantity of water of default boiler；
Detect the timely water of boiler；
The timely water of boiler is compared in real time with standard quantity of water；
According to the on-off of result control water inlet pipe or outlet pipe that water compares.
It is real-time by carrying out the timely water of boiler and standard quantity of water in the boiler water intelligent control method of aquation workshop
It compares, further according to the on-off of result control water inlet pipe or outlet pipe that water compares.Until timely water is identical as standard quantity of water,
Aqueduct valve is closed, and realizes the real-time adjusting of aquation workshop boiler water.The invention enables the adjustings of aquation workshop boiler water
Much sooner and accurately.
Embodiment eight
On the basis of embodiment seven, when detecting the timely water of boiler, boiler water level is detected using water level sensor,
Water consumption scaling unit converses the timely water in boiler again.
When detecting the timely water of boiler, boiler water level is detected using water level sensor, then water consumption scaling unit changes
The timely water in boiler is calculated, guarantees the timely water for obtaining boiler in real time, to guarantee the timeliness of runoff investigation.
Embodiment nine
On the basis of embodiment seven or embodiment eight, compared in real time by the timely water of boiler with standard quantity of water
When, comparison result is output to the adjustment module of main controller.
When being compared the timely water of boiler and standard quantity of water in real time, adjustment module can obtain comparison knot in time
Fruit, and can be reacted according to comparison result, realize the intelligent control of runoff investigation.
Embodiment ten
On the basis of seven to nine any one of embodiment, when controlling the on-off of water inlet pipe or outlet pipe, by main controller
Adjustment module controls the on-off of water inlet pipe and outlet pipe, real with water flow meter using feed water flow meter real-time monitoring inflow
When monitor water yield.
When the on-off of control water inlet pipe or outlet pipe, feed water flow meter real-time monitoring inflow is real-time with water flow meter
Water yield is monitored, guarantees that inflow or water yield compare that difference is identical with water, the accurate adjusting of guarantee boiler water.
Claims (10)
1. aquation workshop boiler water intelligence control system, which is characterized in that including main controller, main controller includes for pot to be arranged
The standard quantity of water presetting module of the standard quantity of water of furnace, is used for timely water the water detecting module for detecting boiler water
The water comparison module compared, the adjustment module for adjusting boiler water are done with standard quantity of water.
2. boiler water intelligence control system in aquation workshop according to claim 1, which is characterized in that the standard quantity of water
Presetting module includes standard quantity of water typing unit: for manually by standard quantity of water typing main controller.
3. boiler water intelligence control system in aquation workshop according to claim 1, which is characterized in that the water detection
Module includes water level detector, and water level detector is installed in boiler, and water level detector is electrically connected with water scaling unit.
4. boiler water intelligence control system in aquation workshop according to claim 1, which is characterized in that the water compares
Module includes water comparing unit, and standard quantity of water presetting module and water detecting module are electrically connected with water comparing unit.
5. boiler water intelligence control system in aquation workshop according to claim 1, which is characterized in that the adjustment module
It has been electrically connected inlet water solenoid valve, feed water flow meter, water outlet solenoid valve and water flow meter, inlet water solenoid valve and flow of inlet water
Meter is mounted on the water inlet pipe of boiler, and water outlet solenoid valve and water flow meter are installed on the outlet pipe of boiler.
6. boiler water intelligence control system in aquation workshop according to claim 5, which is characterized in that the water compares
Module is electrically connected with adjustment module, and electromagnetic relay, the normally open contact and water inlet electricity of electromagnetic relay are provided in adjustment module
Magnet valve electrical connection, the normally closed interlock of electromagnetic relay are electrically connected with water outlet solenoid valve.
7. aquation workshop boiler water intelligent control method, which comprises the steps of:
The standard quantity of water of default boiler；
Detect the timely water of boiler；
The timely water of boiler is compared in real time with standard quantity of water；
According to the on-off of result control water inlet pipe or outlet pipe that water compares.
8. boiler water intelligent control method in aquation workshop according to claim 7, which is characterized in that in detection boiler
When timely water, boiler water level is detected using water level sensor, then water consumption scaling unit converses the timely water in boiler.
9. boiler water intelligent control method in aquation workshop according to claim 7, which is characterized in that by boiler and
When Shi Shuiliang and standard quantity of water are compared in real time, comparison result is output to the adjustment module of main controller.
10. boiler water intelligent control method in aquation workshop according to claim 7, which is characterized in that control water inlet pipe
Or outlet pipe on-off when, by the on-off of adjustment module the control water inlet pipe and outlet pipe of main controller, use feed water flow meter real
When monitor inflow, with water flow meter real-time monitoring water yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616638.0A CN110319595A (en) | 2019-07-09 | 2019-07-09 | Aquation workshop boiler water intelligence control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616638.0A CN110319595A (en) | 2019-07-09 | 2019-07-09 | Aquation workshop boiler water intelligence control system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319595A true CN110319595A (en) | 2019-10-11 |
Family
ID=68123282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910616638.0A Pending CN110319595A (en) | 2019-07-09 | 2019-07-09 | Aquation workshop boiler water intelligence control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319595A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914017A (en) * | 1982-07-15 | 1984-01-24 | Matsushita Electric Works Ltd | Device for feeding hot water automatically to bath |
| CN102467133A (en) * | 2010-11-04 | 2012-05-23 | 西安扩力机电科技有限公司 | Full-automatic water level control system for boiler water supply |
| CN204787295U (en) * | 2015-05-29 | 2015-11-18 | 广东龙正节能环保科技有限公司 | Automatic water supply boiler |
| CN105737135A (en) * | 2016-03-28 | 2016-07-06 | 湖北民族学院 | Small boiler water replenishing system |
| CN105786031A (en) * | 2016-04-27 | 2016-07-20 | 广州鹏微电子有限公司 | Intelligent water level controller and water level monitoring method |
-
2019
- 2019-07-09 CN CN201910616638.0A patent/CN110319595A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914017A (en) * | 1982-07-15 | 1984-01-24 | Matsushita Electric Works Ltd | Device for feeding hot water automatically to bath |
| CN102467133A (en) * | 2010-11-04 | 2012-05-23 | 西安扩力机电科技有限公司 | Full-automatic water level control system for boiler water supply |
| CN204787295U (en) * | 2015-05-29 | 2015-11-18 | 广东龙正节能环保科技有限公司 | Automatic water supply boiler |
| CN105737135A (en) * | 2016-03-28 | 2016-07-06 | 湖北民族学院 | Small boiler water replenishing system |
| CN105786031A (en) * | 2016-04-27 | 2016-07-20 | 广州鹏微电子有限公司 | Intelligent water level controller and water level monitoring method |
Non-Patent Citations (1)
| Title |
|---|
| 付学刚: "《电子技术实训 项目教程》", 30 September 2009, 中国地图出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107039667B (en) | Signal control system and control method for fuel cell stack power generation system | |
| CN112213460B (en) | Water quality detection method for water supply pipeline | |
| CN108006928A (en) | Air conditioning water system vari- able flow control system and method | |
| CN201892864U (en) | System for controlling water quality of circulating water | |
| CN114790551A (en) | Liquid level balance control system and method for water electrolysis hydrogen production equipment | |
| CN201885399U (en) | Direct-heating controller for heat pump water supply system | |
| CN105605965A (en) | Automatic online cleaning system and method for self-adapting circulating cooling water heat exchanger | |
| WO2009039685A1 (en) | High precision automatic flow balancing device | |
| CN107585891A (en) | Realize the control method that purifier waste water ratio automatically adjusts | |
| CN205227501U (en) | Intelligence caliduct device based on singlechip | |
| CN110319595A (en) | Aquation workshop boiler water intelligence control system and method | |
| CN116154221B (en) | Control method of hydrogen recycling system | |
| CN212538946U (en) | Automatic maintenance system for cooling tower | |
| CN104848384A (en) | Temperature/pressure-change heating heat exchanger unit | |
| CN108775720B (en) | An intelligent precise constant temperature control solar water heating system | |
| CN218525611U (en) | Water route cold start big or small circulation system of fuel cell pile test | |
| WO2023226901A1 (en) | Negative-pressure sewage relay station, and negative-pressure sewage collection system and control method thereof | |
| CN110715347A (en) | One-network balancing device and control method | |
| CN212151744U (en) | Automatic adjustment device of cold water in generator | |
| CN210107557U (en) | Hot water supply device | |
| CN115594279A (en) | Multi-parameter cooperative regulation and control system and method based on calculation type pH | |
| CN103324184A (en) | Fuel gas transportation and distribution monitoring system | |
| CN213013123U (en) | Oxygen cathode electrolytic cell oxygen circulation flow accurate control system | |
| CN208027196U (en) | A kind of temperature control system for crystallizer | |
| CN206430432U (en) | A factory equipment cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191011 |