CN206362205U - Energy-saving circulating water cooling system - Google Patents
Energy-saving circulating water cooling system Download PDFInfo
- Publication number
- CN206362205U CN206362205U CN201621494072.7U CN201621494072U CN206362205U CN 206362205 U CN206362205 U CN 206362205U CN 201621494072 U CN201621494072 U CN 201621494072U CN 206362205 U CN206362205 U CN 206362205U
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- Prior art keywords
- cooling
- water
- tower
- energy
- pipeline
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model provides a kind of energy-saving circulating water cooling system, belongs to circulating water field, is mainly used in the cooling of process system and equipment, including cooling pond, cooling tower, three-way pipeline, cooling water pipeline, connecting pipe.Process system and equipment, cooling pond and cooling tower are connected with each other by three-way pipeline；Cooling pond is connected by cooling water pipeline with equipment.Cold water in cooling tower is discharged in cooling pond by connecting pipe.First flow control valve and upper tower water pump are provided with the pipeline section that three-way pipeline is connected with cooling tower.In use, the lower water temperature first flow control valve and the aperture of second flow control valve that are exported according to the water temperature of cooling pond or technical cooling equipment, and then adjust the flow for entering tower water pump (or speed-regulating type water pump) and water supply pump；This directly reduces the energy consumption of upper tower water pump and water supply pump, the energy consumption of whole cooling water recirculation system is significantly decreased.
Description
Technical field
The utility model is related to circulating water field, in particular to a kind of energy-saving circulating water cooling system.
Background technology
Cooling water system is mainly made up of cooling device, water pump and pipeline.Cold water, which flows through, needs the production equipment cooled (often
Claim heat transmission equipment, such as heat exchanger, condenser, reactor) after, temperature rises, and by cooling device, then its temperature returns drop to hot water.So
After can be reused with pumped back production equipment, the cold water intake system of this circulation greatly reduces water consumption.In industrial water,
Cooling water accounts for 70% of industrial water consumption or so, therefore, and cooling water recirculation system has played a large amount of industrial waters of saving.
The temperature of the water flowed out from production equipment is often to be cooled down in needing to be sent to cooling tower, the height one of cooling tower
As more than tens meters, this is accomplished by power larger water pump and water is sent on cooling tower.Whole cooling water recirculation system needs
The more electric power of consumption, this becomes a larger cost payout of manufacturing enterprise.
Therefore a kind of energy-saving circulating water cooling system is provided for saving holding for the energy, reduction production cost and society
Supervention exhibition has very important realistic meaning.
Utility model content
The purpose of this utility model is the provision of a kind of energy-saving circulating water cooling system, and it can be by adaptively
The flow of tower water pump saves the energy consumption of whole system in change.
What the utility model was realized in：
A kind of energy-saving circulating water cooling system, for the cooling of process system and equipment, including cooling pond, cooling tower,
Three-way pipeline, cooling water pipeline and connecting pipe；The process system and equipment, the cooling pond and the cooling tower pass through institute
State three-way pipeline interconnection；The three-way pipeline include total pipeline, the first subtube and the second subtube, the total pipeline with
The process system and equipment connection, first subtube connects with the cooling tower, second subtube with it is described cool
Pond is connected；
The cooling pond is connected by the cooling water pipeline with the process system and equipment；The cooling pond passes through institute
Connecting pipe is stated to connect with the cooling tower；
Tower water pump and first flow control valve are provided with first subtube；The first flow control valve is set
The upstream of tower water pump on described.
Water supply pump and second flow control valve are provided with the cooling water pipeline；The second flow control valve is set
The upstream of tower water pump on described.
Preferably, the energy-saving circulating water cooling system also includes controller and temperature sensor, the controller
It is connected with the temperature sensor, the temperature sensor is separately positioned on the cooling water pipeline and the total pipeline；Institute
Controller is stated to be connected with the first flow control valve；The controller is connected with the second flow control valve.
Preferably, the motor of the upper tower water pump and the motor of the water supply pump are provided with first forever
Magnetic speed regulator or the first frequency converter, first permanent-magnet speed governor or first frequency converter are electrically connected with the controller.
Preferably, fan and motor are provided with the air outlet of the cooling tower, the fan and the driving
Motor connection.
Preferably, the second frequency converter or the second permanent-magnet speed governor are provided with the motor, second frequency conversion
Device or second permanent-magnet speed governor are electrically connected with the controller.
Preferably, the delivery port of first subtube is provided with watering device.
Preferably, the watering device includes watering piece, circular outer ring, rotary shaft, support bar and sleeve；The sleeve
In the middle part of the delivery port for being arranged on first subtube, radial distribution of multiple support bars along the first subtube, and its
One end is connected with the inwall of first subtube, the other end and sleeve connection；
The rotary shaft is perpendicular to the circular outer ring, and its one end is located at the middle part of circular outer ring, the one of the watering piece
End is connected to the rotary shaft, and the other end is connected to the circular outer ring；The watering piece and the axis of the circular outer ring incline
Tiltedly set；The rotary shaft is arranged in the sleeve, and the end of the rotary shaft is provided with block.
Preferably, the rotary shaft is connected with the sleeve by bearing.
Preferably, being provided with agitator in the cooling pond.
Preferably, being provided with second flow control valve on the cooling water pipeline, the second flow control valve is set
In the upstream of the water supply pump.
The beneficial effects of the utility model are：
The energy-saving circulating water cooling system that the utility model is obtained by above-mentioned design, in use, according to cooling pond
The aperture of lower water temperature first flow control valve, and then adjust the flow for entering tower water pump.This directly causes upper tower water pump
The discharge reduction on water tower is sent to, the acting of tower water pump is reduced, the energy consumption of tower water pump is reduced.Due to upper tower water pump
Energy consumption account for whole cooling water recirculation system energy consumption proportion it is larger, therefore the energy consumption for reducing upper tower water pump can significantly decrease it is whole
The energy consumption of individual cooling water recirculation system.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the energy-saving circulating water cooling system that the utility model embodiment is provided；
Fig. 2 is the structural representation for the cooling tower that the utility model embodiment is provided；
Fig. 3 is the structural representation of the first subtube that the utility model embodiment is provided and watering device；
Fig. 4 is the structural representation for the watering device that the utility model embodiment is provided；
Fig. 5 is the assembling schematic diagram of the watering device that the utility model embodiment is provided and the first subtube.
Icon：100- energy-saving circulating water cooling systems；110- cooling pond；112- agitators；120- cooling towers；122- wind
Fan；1222- drive shafts；1224- blades；1226- motors；The frequency converters of 1228- second；125- watering devices；1252- sprinkles water
Piece；1253- support bars；1254- rotary shafts；1256- circles outer ring；1258- sleeves；1259- blocks；130- three-way pipelines；
132- total pipelines；The subtubes of 134- first；The upper tower water pumps of 1342-；1344- first flow control valves；The subtubes of 136- second；
140- cooling water pipelines；142- water supply pumps；144- second flow control valves；146- temperature sensors；150- connecting pipes；
160- process systems and equipment；170- controllers；200- energy-saving circulating water cooling systems.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, and shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the utility model protection.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings, which is not intended to limit, wants
The scope of the present utility model of protection is sought, but is merely representative of selected embodiment of the present utility model.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Mode, belongs to the scope of the utility model protection.
In description of the present utility model, it is to be understood that the term of indicating position or position relationship is based on accompanying drawing
Shown orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply institute
The process system and equipment or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore can not manage
Solve as to limitation of the present utility model.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that indicating or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to that its direction, with respect to more level for " vertical ", is not the expression structure
Must be fully horizontal, but can be slightly tilted.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is on or below second feature
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Directly over two features and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature is special second
Under levying, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level
Highly it is less than second feature.
Embodiment：
Such as Fig. 1, present embodiments provide a kind of energy-saving circulating water cooling system 100, the system be used for process system and
The cooling of equipment 160, including cooling pond 110, cooling tower 120, three-way pipeline 130, cooling water pipeline 140, the and of connecting pipe 150
Controller 170.Process system and equipment 160, cooling pond 110 and cooling tower 120 are connected with each other by three-way pipeline 130；Cold water
Pond 110 is connected by cooling water pipeline 140 with process system and equipment 160.Cold water in cooling tower 120 passes through connecting pipe
150 are discharged in cooling pond 110.Regulation is flowed into the water-carrying capacity of tower water pump 1342 to reduce upper tower water pump controller 170 in real time
1342 energy consumption；Controller 170 can also adjust the flow of water supply pump 142 in real time, so as to reduce the energy of water supply pump 142
Consumption；Therefore, the system can substantially reduce energy consumption.
Such as Fig. 1, three-way pipeline 130 includes total pipeline 132, the first subtube 134 and the second subtube 136.Total pipeline 132
Connected with process system and equipment 160, the first subtube 134 is connected with cooling tower 120, the second subtube 136 and cooling pond 110
Connection.Tower water pump 1342 and first flow control valve 1344 are additionally provided with first subtube 134.Set on upper tower water pump 1342
The first frequency converter (not shown) is equipped with, permanent-magnet speed governor is connected with controller 170.First flow control valve 1344 and control
Device 170 is electrically connected, and controller 170 can adjust the aperture of first flow control valve 1344.
After cooling water is cooled down to process system and equipment 160, water temperature rise, into total pipeline 132.Total pipeline 132
On be additionally provided with temperature sensor 146, temperature sensor 146 is electrically connected with controller 170.When hot water is flowed into three pipeline friendships
When at remittance, a part of water enters the first subtube 134, in the presence of upper tower water pump 1342, the hot water of the first subtube 134
Enter cooling tower 120；Another part water is directly entered cooling pond 110 after entering the second subtube 136.
Such as Fig. 1, cooling pond 110 is arranged on below ground level, passes through connecting pipe 150 and cooling tower 120 and cooling pond 110
Connection.Cooling pond 110 is used to store the hot water from the second subtube 136 and the cold water from cooling tower 120.In order that hot water
It is well mixed with cold water, agitator 112 is also provided with cooling pond 110.
Cooling water in cooling pond 110 is transported to the process system for needing to cool down and equipment 160 by cooling water pipeline 140
In.Water supply pump 142 and second flow control valve 144 are provided with cooling water pipeline 140, second flow control valve 144 is set
Put in the upstream of water supply pump 142.The first frequency converter is provided with the motor of water supply pump 142.Second flow control valve
144 electrically connect with controller 170, and controller 170 can adjust the aperture of second flow control valve 144.
Temperature sensor 146 is additionally provided with cooling water pipeline 140, temperature sensor 146 is electrically connected with controller 170
Connect.It should be noted that the arrangement shown in figure is only to illustrate, the arrangement vertically of cooling water pipeline 140 is not represented.
Controller 170 can be belonged to prior art, no longer it done and retouched in detail using PLC controls or single-chip microcomputer control
State.The control of the upper tower water pump 1342 of 170 pairs of controller and water supply pump 142 is by controlling the first frequency converter (not shown)
Come what is realized.Motor can be set in first flow control valve 1344 and second flow control valve 144, and controller 170 passes through control
The rotation of motor processed is come the realize first flow control valve 1344 and aperture size of second flow control valve 144.
Operationally, temperature sensor 146 is to cooling water pipeline 140 and always for whole energy-saving circulating water cooling system 100
The water temperature of pipeline 132 is tested, and signal is fed back into controller 170.When water temperature is less than the temperature needed, controller 170
Reduce the aperture of first flow control valve 1344 and second flow control valve 144, and suitably reduce upper tower water pump 1342 and supply water
The rotating speed of water pump 142.Now, reduced by the water of upper tower water pump 1342, energy consumption reduction；And pass through water supply pump 142
Water reduces, energy consumption reduction.When water temperature is higher than the temperature needed, opposite operation is performed so that more water enters cold
But tower 120 is cooled down, and the cold water for being drained into cooling pond 110 from cooling tower 120 increases, so as to reduce the water of cooling pond 110
Temperature.
Because winter environment temperature is relatively low, the cooling effect of cooling pond 110 itself is relatively good, and most water is directly conveyed
Enter into the cooling pond 110 of low level cooling, only a small amount of water enters cooling tower 120.So as to substantially reduce Shang Tashui
The energy consumption of pump 1342, significantly reduces the energy consumption of whole system.In addition, the radiating effect of winter process system and equipment 160 itself
Really relatively good, the consumption of cooling water is reduced, i.e., the flow of water supply pump 142 is reduced, and its energy consumption is also reduced.
With the change of environment temperature, the cooling effect of of cooling pond 110 itself can also change, temperature sensor 146
By determining the water temperature of cooling water pipeline 140 and total pipeline 132, signal is passed into controller 170, so as to in inflow
The water of tower water pump 1342 and water supply pump 142 is adjusted in real time.The system can both be carried out to process system and equipment 160
It is sufficiently cool, it is unlikely to waste the energy again.
Such as Fig. 2, fan 122 is provided with the air outlet of cooling tower 120, fan 122 includes drive shaft 1222, blade
1224th, the frequency converter 1228 of motor 1226 and second；Blade 1224 is vortex shape, is connected to one end of drive shaft 1222；Drive
The other end of moving axis 1222 is connected with motor 1226；Second frequency converter 1228 be arranged on motor 1226 and with control
Device 170 processed is electrically connected.The blade 1224 of vortex shape more efficiently can extract the hot-air in cooling tower 120 out when rotating.
Because winter environment temperature is than relatively low, the cooling effect of cooling tower 120 is relatively good, at this moment, can suitably reduce wind
The rotating speed of fan 122, so as to save the energy.The temperature that temperature sensor 146 feeds back to controller 170 is less than required cold water intaking
Temperature when, controller 170 can reduce the rotating speed of motor 1226 by changing the frequency of second frequency converter 1228 so that
Save electric energy.
Such as Fig. 3, Fig. 4 and Fig. 5, the delivery port of the first subtube 134 is additionally provided with watering device 125.Watering device 125 is wrapped
Include watering piece 1252, circular outer ring 1256, rotary shaft 1254, support bar 1253 and sleeve 1258.Sleeve 1258 is arranged on water outlet
The middle part of mouth, radial distribution of the support bar 1253 along the first subtube 134, and its one end and the inwall of the first subtube 134
Connection, the other end is connected with sleeve 1258；Multiple support bars 1253 are uniformly distributed in the excircle of sleeve 1258.
Rotary shaft 1254 is located in circular outer ring 1256 perpendicular to circular outer ring 1256, and one end of rotary shaft 1254
Portion, one end of watering piece 1252 is connected to rotary shaft 1254, and the other end is connected to circular outer ring 1256；Watering piece 1252 and circle
The axis of outer ring 1256 is obliquely installed.Rotary shaft 1254 is arranged in sleeve 1258, and the end of rotary shaft 1254 is provided with block
1259。
Axis due to watering piece 1252 in circular outer ring 1256 has certain angle, in current between watering piece 1252
During outflow, watering piece 1252 is by the component parallel to the mouth of pipe of the first subtube 134, in the presence of the component, circular outer ring
1256th, watering piece 1252 and rotary shaft 1254 are rotated in sleeve 1258.Water spills between watering piece 1252, and piece of sprinkling water
1252 rotation causes current direction surrounding to disperse, and can preferably be radiated.
It should be noted that the present embodiment be preferred embodiment, in certain embodiments, controller 170, agitator 112,
Permanent-magnet speed governor and temperature sensor 146 it is not necessary to；Or in certain embodiments, the first frequency converter can also be by
One permanent-magnet speed governor is replaced, and the second frequency converter 1228 can also replace by the second permanent-magnet speed governor；Or implement some
In example, bearing is additionally provided with rotary shaft 1254, rotary shaft 1254 is connected by bearing with sleeve 1258.These change not shadow
The use of energy-saving circulating water cooling system 100 is rung, and the energy can also be saved.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Within then, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of energy-saving circulating water cooling system, the cooling for process system and equipment, it is characterised in that including cold water
Pond, cooling tower, three-way pipeline, cooling water pipeline and connecting pipe；The process system and equipment, the cooling pond and described cold
But tower is connected with each other by the three-way pipeline；The three-way pipeline includes total pipeline, the first subtube and the second subtube, institute
State total pipeline to connect with the process system and equipment, first subtube is connected with the cooling tower, described second is in charge of
Road is connected with the cooling pond；
The cooling pond is connected by the cooling water pipeline with the process system and equipment；The cooling pond passes through the company
Thread a pipe and connected with the cooling tower；
Tower water pump and first flow control valve are provided with first subtube；The first flow control valve is arranged on institute
State the upstream of tower water pump；
Water supply pump and second flow control valve are provided with the cooling water pipeline；The second flow control valve is arranged on institute
State the upstream of tower water pump.
2. energy-saving circulating water cooling system according to claim 1, it is characterised in that the energy-saving circulating water cooling
System also includes controller and temperature sensor, and the controller is connected with the temperature sensor, the temperature sensor point
It is not arranged on the cooling water pipeline and the total pipeline；The controller is connected with the first flow control valve；It is described
Controller is connected with the second flow control valve.
3. energy-saving circulating water cooling system according to claim 2, it is characterised in that the driving electricity of the upper tower water pump
The motor of machine and the water supply pump is provided with the first permanent-magnet speed governor or the first frequency converter, first permanent magnetic speed-adjusting
Device or first frequency converter are electrically connected with the controller.
4. energy-saving circulating water cooling system according to claim 2, it is characterised in that at the air outlet of the cooling tower
It is provided with fan and motor, the fan and motor connection.
5. energy-saving circulating water cooling system according to claim 4, it is characterised in that be provided with the motor
Second frequency converter or the second permanent-magnet speed governor, second frequency converter or second permanent-magnet speed governor are electrically connected with the controller
Connect.
6. energy-saving circulating water cooling system according to claim 5, it is characterised in that the water outlet of first subtube
Mouth is provided with watering device.
7. energy-saving circulating water cooling system according to claim 6, it is characterised in that the watering device includes watering
Piece, circular outer ring, rotary shaft, support bar and sleeve；The sleeve is arranged in the middle part of the delivery port of first subtube, multiple
Radial distribution of the support bar along the first subtube, and its one end is connected with the inwall of first subtube, the other end
With sleeve connection；
The rotary shaft is perpendicular to the circular outer ring, and its one end is located at the middle part of circular outer ring, and one end of the watering piece connects
The rotary shaft is connected to, the other end is connected to the circular outer ring；The watering piece and the axis of the circular outer ring are tilted and set
Put；The rotary shaft is arranged in the sleeve, and the end of the rotary shaft is provided with block.
8. energy-saving circulating water cooling system according to claim 7, it is characterised in that the rotary shaft and the sleeve
Connected by bearing.
9. energy-saving circulating water cooling system according to claim 5, it is characterised in that be provided with and stir in the cooling pond
Mix device.
10. energy-saving circulating water cooling system according to claim 1, it is characterised in that set on the cooling water pipeline
Second flow control valve is equipped with, the second flow control valve is arranged on the upstream of the water supply pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494072.7U CN206362205U (en) | 2016-12-30 | 2016-12-30 | Energy-saving circulating water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494072.7U CN206362205U (en) | 2016-12-30 | 2016-12-30 | Energy-saving circulating water cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362205U true CN206362205U (en) | 2017-07-28 |
Family
ID=59378575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621494072.7U Expired - Fee Related CN206362205U (en) | 2016-12-30 | 2016-12-30 | Energy-saving circulating water cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206362205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952047A (en) * | 2023-09-04 | 2023-10-27 | 河北大唐国际丰润热电有限责任公司 | Power plant circulating water monitoring and adjusting integrated device |
-
2016
- 2016-12-30 CN CN201621494072.7U patent/CN206362205U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952047A (en) * | 2023-09-04 | 2023-10-27 | 河北大唐国际丰润热电有限责任公司 | Power plant circulating water monitoring and adjusting integrated device |
| CN116952047B (en) * | 2023-09-04 | 2024-02-13 | 河北大唐国际丰润热电有限责任公司 | Power plant circulating water monitoring and adjusting integrated device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 21 pomegranate wisdom centre, 6 Stone City, Gulou District, Nanjing, Jiangsu Patentee after: Jiangsu Hengfeng annex Polytron Technologies Inc Address before: 210000 21 pomegranate wisdom centre, 6 Stone City, Gulou District, Nanjing, Jiangsu Patentee before: Jiangsu Hengfeng Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |