CN106123623A - A kind of staged heat exchange closed cooling tower - Google Patents
A kind of staged heat exchange closed cooling tower Download PDFInfo
- Publication number
- CN106123623A CN106123623A CN201610831635.5A CN201610831635A CN106123623A CN 106123623 A CN106123623 A CN 106123623A CN 201610831635 A CN201610831635 A CN 201610831635A CN 106123623 A CN106123623 A CN 106123623A
- Authority
- CN
- China
- Prior art keywords
- tower body
- heat exchange
- tower
- air
- dividing plate
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of closed cooling tower of staged heat exchange, including tower body, tower body top is provided with blower fan, tower body sidewall is respectively arranged with air-inlet window at bottom, water tank it is provided with bottom tower body, circulating water inlet and the circulating water outlet pipe of recirculated water turnover it is separately provided on tower body sidewall, the heat exchange module group of circulating water inlet and circulating water outlet pipe it is communicated with in tower body, the dividing plate of at least one being vertically arranged at bottom is also included in tower body, and between dividing plate and the top of tower body, leave distance, tower body inner space and water tank are divided into several spaces by dividing plate, each space is a cooling chamber, all of cooling chamber top is connected；Be provided with heat exchanger tube in cooling chamber, heat exchanger tube be provided above spray equipment, at the water collection device that is provided above of spray equipment, the heat exchanger tube in all cooling chambers be sequentially connected in series formation heat exchange module group.The present invention improves the leaving air temp of cooling tower by staged heat exchange, reduces air mass flow, and then reduces power of fan.
Description
Technical field
The present invention relates to a kind of cooling tower, the closed cooling tower of a kind of staged heat exchange.
Background technology
Closed cooling tower is that one can reduce circulating water temperature, can keep again the cooling device that circulating water quality is pure.
Closed cooling tower comes from evaporative type cooler, and its heat transfer mechanism is: the heat of recirculated water passes to manage outer spray by tube wall
Shower water, shower water forms uniform moisture film on heat exchanger tube, and evaporates absorption heat, and cold dry air is in the positive action of blower fan
Descend and shower water heat convection, take away evaporation heat and drain in air, reducing circulating water temperature, meet system temperature drop and want
Ask.Closed cooling tower is applicable to the various cooling systems higher to circulating water quality requirement, currently mainly applies in electric power, change
The industries such as work, iron and steel, food.
Closed cooling tower, it is achieved that recirculated water totally-enclosed interior road circulation, high degree avoid water resource waste with
Water pollution, thus reach the purpose of water saving.Heat transfer mechanism based on closed cooling tower, for ensure be cooled to need go out water temperature
Degree, the leaving air temp of cooling tower should be less than the leaving water temperature of recirculated water, and therefore closed cooling tower needs substantial amounts of wind just can take away
The heat that circulating water cooling is discharged, therefore the blower fan of closed cooling tower needs bigger operation power.Of the prior art close
The formula cooling tower mode using entirety cooling, recirculated water once cools down complete in cooling tower, and therefore blower fan necessarily be in height more
The duty of power, not only power consumption is high, and easily acceleration equipment is aging.
Summary of the invention
In order to solve deficiency of the prior art, the present invention provides the one can be with staged heat exchange, to gradually reduce circulation
Coolant-temperature gage, and then reduce power of fan, it is achieved the closed cooling tower of the staged heat exchange of energy-conserving and environment-protective.
In order to achieve the above object, the technical solution used in the present invention is:
The closed cooling tower of a kind of staged heat exchange, including tower body, tower body top is provided with blower fan, and tower body sidewall is at bottom
It is respectively arranged with air-inlet window, bottom tower body, is provided with water tank, tower body sidewall is separately provided for the circulation of recirculated water turnover
Water water inlet pipe and circulating water outlet pipe, be communicated with the heat exchange module of circulating water inlet and circulating water outlet pipe in tower body
Group, also includes being vertically arranged at the dividing plate of at least one of bottom in tower body, and leave between dividing plate and the top of tower body away from
From, tower body inner space and water tank are divided into several spaces by dividing plate, and each space is a cooling chamber, all of cooling chamber top
Portion is connected；
Be provided with heat exchanger tube in described cooling chamber, heat exchanger tube be provided above spray equipment, being provided above at spray equipment
Water collection device, the heat exchanger tube in all cooling chambers is had to be sequentially connected in series formation heat exchange module group.
The height of described heat exchange module group is higher than air-inlet window.
Described heat exchanger tube is coil.
Described air-inlet window is shutter, and blade is inclined upwardly from outside to inside.
In each cooling chamber, described spray equipment connects with water tank.
The quantity of described dividing plate, more than for the moment, is put on each dividing plate and is both provided with air holes, and its height is identical with air-inlet window,
The air flowed in tower from air-inlet window enters each cooling chamber through air holes.
Beneficial effect:
1, by staged heat exchange, the final leaving air temp improving cooling tower, in the case of obtaining identical cooling effect, permissible
Reduce air mass flow, and then the use power of reduction blower fan, and then reduce power consumption, energy-conserving and environment-protective；
2, by reducing power, it is possible to reduce blower fan loss operationally, by staged heat exchange, it is possible to reduce each heat exchange
Pipe loss in use, and then extend the service life of whole cooling tower；
3, air-inlet window uses shutter, and blade is inclined upwardly from outside to inside, dust can be prevented to a certain extent to be inhaled into
Or fall in cooling tower, ensure the water quality of recirculated water.
Accompanying drawing explanation
Fig. 1 is the structural representation of this staged heat exchange closed cooling tower.
Reference: 1, blower fan, 2, tower body, 3, water collection device, 4, spray equipment, 5, circulating water outlet pipe, 6, heat exchange module
Group, 7, air-inlet window, 8, water tank, 9, dividing plate, 10, circulating water inlet, 11, heat exchanger tube.
Detailed description of the invention
Embodiments of the present invention are illustrated below according to accompanying drawing:
As it is shown in figure 1, the closed cooling tower of a kind of staged heat exchange, including tower body 2, tower body 2 top is provided with blower fan 1, tower body 2
Sidewall is respectively arranged with air-inlet window 7 at bottom, is provided with water tank 8, tower body 2 sidewall is respectively provided with useful bottom tower body 2
In circulating water inlet 10 and the circulating water outlet pipe 5 of recirculated water turnover, in tower body 2, it is communicated with circulating water inlet 10 He
The heat exchange module group 6 of circulating water outlet pipe 5, also includes the dividing plate 9 of at least one being vertically arranged at bottom in tower body 2, and
Leaving distance between the top of dividing plate 9 and tower body 2, tower body 2 inner space and water tank 8 are divided into several spaces by dividing plate 9, each
Space is a cooling chamber, and all of cooling chamber top is connected；
Be provided with heat exchanger tube 11 in described cooling chamber, heat exchanger tube 11 be provided above spray equipment 4, upper at spray equipment 4
Side is provided with water collection device 3, and the heat exchanger tube 11 in all cooling chambers is sequentially connected in series formation heat exchange module group 6.
The height of described heat exchange module group 6 is higher than air-inlet window 7.
Described heat exchanger tube 11 is coil.
Described air-inlet window 7 is shutter, and blade is inclined upwardly from outside to inside.
In each cooling chamber, described spray equipment 4 connects with water tank 8.
The quantity of described dividing plate 9, more than for the moment, is put on each dividing plate and is both provided with air holes, its height and air-inlet window 7 phase
With, the air flowed in tower from air-inlet window 7 enters each cooling chamber through air holes.
The cooling means that the closed cooling tower of described staged heat exchange uses is:
Step one, startup each several part equipment, recirculated water is entered in cooling tower by circulating water inlet 10.
Step 2, circulating water flow warp first cooling chamber in, it is t that spray equipment 4 extracts temperature from water tank 81Spray
Trickle also sprays to heat exchanger tube 11, and shower water forms equally distributed moisture film, moisture film absorption heat-exchange pipe on the surface of heat exchanger tube 11
The heat of recirculated water in 11 and flash to steam.
Step 3, under the effect of blower fan 1, cold dry air is sucked by air-inlet window 7 and is flowed up, in flow process with
The water vapour that heat exchanger tube 11 surface is formed carries out heat exchange.
Step 4, complete heat exchange after, cold dry air temperature and humidity raise ultimately become saturated damp-heat air, to
During outer discharge, meet so that the part water vapour in damp-heat air is cold with the water collection device 3 being arranged on above spray equipment 4
Congeal into water droplet, is collected by water collection device 3 together with the water droplet carried secretly in damp-heat air, and then is flowed in water tank 8 by pipeline.
Step 5, the first rank have cooled down, if circulating water cooling amplitude is T.
Step 6, recirculated water flow through remaining cooling chamber successively, and in each cooling chamber, the temperature of shower water is followed successively by t2, t3,
t4..., tn, and meet t1>t2>t3>t4>……>tn；In each cooling chamber, recirculated water proceeds stepped heat exchange,
The amplitude of cooling need to select different temperature drop scopes according to practical situation.
Step 7, the temperature of recirculated water reach to cool down requirement, flow out cooling tower by circulating water outlet pipe 5.
The closed cooling tower of described staged heat exchange can reduce the theoretical foundation of power of fan:
The method being calculated heat exchange amount by Study on Air Enthalpy Difference Method is: heat exchange amount is equal to the product importing and exporting air enthalpy difference and air mass flow.
The enthalpy of closed cooling tower middle outlet damp-heat air is higher than the enthalpy of import cold dry air, therefore in the different heat exchange stages, passes through
Select the shower water of different temperatures, reach to regulate cooling chamber and import and export the purpose of air enthalpy difference, and from first to last
Cooling chamber, import and export air enthalpy difference be sequentially reduced.Meanwhile, the temperature of each cooling chamber outlet air reduces successively, until
Rear one section outlet air themperature is close to recirculated water leaving water temperature.
Between blower fan 1 and cooling chamber, each cooling chamber discharge air converge so that blower fan 1 discharge go out pathogenic wind-warm
Degree is higher than the leaving air temp of last cooling chamber.
According to the heat transfer mechanism of cooling tower, leaving air temp have to be lower than the leaving water temperature of recirculated water just can complete cooling.Pass
The heat transfer process of system closed cooling tower completes in a cavity, thus in the case of reaching identical heat transfer effect, tradition is closed
The leaving air temp of formula cooling tower is identical with the leaving air temp of last cooling chamber of closed cooling tower of staged heat exchange.So,
For cooling tower generally speaking, the enthalpy difference that air imported and exported by the closed cooling tower of staged heat exchange is bigger, and then air mass flow is more
Little, the power of blower fan 1 can be reduced, to reduce energy consumption, cost-effective while can also environmental protection.
Claims (6)
1. a closed cooling tower for staged heat exchange, including tower body (2), tower body (2) top is provided with blower fan (1), tower body (2)
Sidewall is respectively arranged with air-inlet window (7) at bottom, and tower body (2) bottom is provided with water tank (8), on tower body (2) sidewall respectively
It is provided with the circulating water inlet (10) for recirculated water turnover and circulating water outlet pipe (5), is communicated with following in tower body (2)
The heat exchange module group (6) of ring water water inlet pipe (10) and circulating water outlet pipe (5), it is characterised in that:
In tower body (2), also include being vertically arranged at the dividing plate of at least one (9) of bottom, and the top of dividing plate (9) and tower body (2)
Leaving distance between portion, tower body (2) inner space and water tank (8) are divided into several spaces by dividing plate (9), and each space is one
Cooling chamber, all of cooling chamber top is connected；
Be provided with heat exchanger tube (11) in described cooling chamber, heat exchanger tube (11) be provided above spray equipment (4), at spray equipment
(4) be provided above water collection device (3), the heat exchanger tube (11) in all cooling chambers be sequentially connected in series formation heat exchange module group (6).
The closed cooling tower of a kind of staged heat exchange the most as claimed in claim 1, it is characterised in that: described heat exchange module group
(6) height is higher than air-inlet window (7).
The closed cooling tower of a kind of staged heat exchange the most as claimed in claim 1, it is characterised in that: described heat exchanger tube (11) is
Coil.
The closed cooling tower of a kind of staged heat exchange the most as claimed in claim 1, it is characterised in that: described air-inlet window (7) is
Shutter, and blade is inclined upwardly from outside to inside.
The closed cooling tower of a kind of staged heat exchange the most as claimed in claim 1, it is characterised in that: in each cooling chamber,
Described spray equipment (4) connects with water tank (8).
The closed cooling tower of a kind of staged heat exchange the most as claimed in claim 1, it is characterised in that: the number of described dividing plate (9)
Amount, more than for the moment, is put on each dividing plate and is both provided with air holes, and its height is identical with air-inlet window (7), flows into tower from air-inlet window (7)
Interior air enters each cooling chamber through air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831635.5A CN106123623A (en) | 2016-09-20 | 2016-09-20 | A kind of staged heat exchange closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831635.5A CN106123623A (en) | 2016-09-20 | 2016-09-20 | A kind of staged heat exchange closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106123623A true CN106123623A (en) | 2016-11-16 |
Family
ID=57271555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610831635.5A Pending CN106123623A (en) | 2016-09-20 | 2016-09-20 | A kind of staged heat exchange closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106123623A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839804A (en) * | 2017-01-21 | 2017-06-13 | 海宁萃智智能机器人有限公司 | A kind of efficient cooling tower |
| CN108428298A (en) * | 2017-02-15 | 2018-08-21 | 富士电机株式会社 | Automatic vending machine |
| CN108592651A (en) * | 2018-04-16 | 2018-09-28 | 北京石油化工学院 | Across season across the buried cooling tower of cold-storage round the clock |
| CN108662917A (en) * | 2018-06-04 | 2018-10-16 | 栋梁铝业有限公司 | A kind of closed cooling tower |
| CN109631615A (en) * | 2018-12-12 | 2019-04-16 | 河南展泓图信息科技有限公司 | A kind of cooling tower with water mist processing unit |
| CN110057234A (en) * | 2019-04-22 | 2019-07-26 | 国家能源投资集团有限责任公司 | Temperature measuring equipment, cooling system and temp measuring method |
| CN110608492A (en) * | 2019-09-16 | 2019-12-24 | 珠海格力电器股份有限公司 | Precooling type evaporative condensation air-conditioning system and control method thereof |
| CN113405372A (en) * | 2021-06-21 | 2021-09-17 | 威海金宏科技有限公司 | Closed air cooling tower process and system based on micro-interface hydrophilic filler |
| CN113483349A (en) * | 2021-06-21 | 2021-10-08 | 威海金宏科技有限公司 | Flue gas whitening and moisture recovery process and system based on combination of water cooling and air cooling |
| CN113968132A (en) * | 2021-10-31 | 2022-01-25 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cooling water kettle for vehicle |
| CN114234666A (en) * | 2021-12-20 | 2022-03-25 | 中车株洲电力机车有限公司 | Electric locomotive and double-loop cooling tower and control method thereof |
| CN114307225A (en) * | 2021-12-30 | 2022-04-12 | 苏州赢众环保有限公司 | Steam condensation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120061055A1 (en) * | 2010-09-15 | 2012-03-15 | Evapco, Inc. | Hybrid heat exchanger apparatus and method of operating the same |
| CN202350575U (en) * | 2012-04-20 | 2012-07-25 | 魏忠信 | Bottom air admission closed cooling tower |
| CN103234372A (en) * | 2013-05-31 | 2013-08-07 | 无锡禹兵冷却设备有限公司 | Combined closed cooling tower |
| CN103471422A (en) * | 2013-09-29 | 2013-12-25 | 德州贝诺风力机械设备有限公司 | Opening-and-closing energy-saving cooling tower |
| CN103776276A (en) * | 2013-07-03 | 2014-05-07 | 烟台荏原空调设备有限公司 | Counter-flow closed-type cooling tower |
| CN203893696U (en) * | 2014-05-17 | 2014-10-22 | 赵旸 | Drawable tube bundle type evaporation air cooler |
| CN204535458U (en) * | 2015-01-22 | 2015-08-05 | 楚志发 | A kind of energy-saving circulating water cooling tower |
-
2016
- 2016-09-20 CN CN201610831635.5A patent/CN106123623A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120061055A1 (en) * | 2010-09-15 | 2012-03-15 | Evapco, Inc. | Hybrid heat exchanger apparatus and method of operating the same |
| CN202350575U (en) * | 2012-04-20 | 2012-07-25 | 魏忠信 | Bottom air admission closed cooling tower |
| CN103234372A (en) * | 2013-05-31 | 2013-08-07 | 无锡禹兵冷却设备有限公司 | Combined closed cooling tower |
| CN103776276A (en) * | 2013-07-03 | 2014-05-07 | 烟台荏原空调设备有限公司 | Counter-flow closed-type cooling tower |
| CN103471422A (en) * | 2013-09-29 | 2013-12-25 | 德州贝诺风力机械设备有限公司 | Opening-and-closing energy-saving cooling tower |
| CN203893696U (en) * | 2014-05-17 | 2014-10-22 | 赵旸 | Drawable tube bundle type evaporation air cooler |
| CN204535458U (en) * | 2015-01-22 | 2015-08-05 | 楚志发 | A kind of energy-saving circulating water cooling tower |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839804A (en) * | 2017-01-21 | 2017-06-13 | 海宁萃智智能机器人有限公司 | A kind of efficient cooling tower |
| CN108428298A (en) * | 2017-02-15 | 2018-08-21 | 富士电机株式会社 | Automatic vending machine |
| CN108592651A (en) * | 2018-04-16 | 2018-09-28 | 北京石油化工学院 | Across season across the buried cooling tower of cold-storage round the clock |
| CN108592651B (en) * | 2018-04-16 | 2020-04-24 | 北京石油化工学院 | Cross-season day-night cold accumulation buried cooling tower |
| CN108662917A (en) * | 2018-06-04 | 2018-10-16 | 栋梁铝业有限公司 | A kind of closed cooling tower |
| CN109631615A (en) * | 2018-12-12 | 2019-04-16 | 河南展泓图信息科技有限公司 | A kind of cooling tower with water mist processing unit |
| CN110057234A (en) * | 2019-04-22 | 2019-07-26 | 国家能源投资集团有限责任公司 | Temperature measuring equipment, cooling system and temp measuring method |
| CN110608492B (en) * | 2019-09-16 | 2023-12-15 | 珠海格力电器股份有限公司 | Precooling evaporative condensing air conditioning system and control method thereof |
| CN110608492A (en) * | 2019-09-16 | 2019-12-24 | 珠海格力电器股份有限公司 | Precooling type evaporative condensation air-conditioning system and control method thereof |
| CN113405372A (en) * | 2021-06-21 | 2021-09-17 | 威海金宏科技有限公司 | Closed air cooling tower process and system based on micro-interface hydrophilic filler |
| CN113483349A (en) * | 2021-06-21 | 2021-10-08 | 威海金宏科技有限公司 | Flue gas whitening and moisture recovery process and system based on combination of water cooling and air cooling |
| CN113968132A (en) * | 2021-10-31 | 2022-01-25 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cooling water kettle for vehicle |
| CN113968132B (en) * | 2021-10-31 | 2023-09-22 | 重庆金康赛力斯新能源汽车设计院有限公司 | Integrated cooling kettle for vehicle |
| CN114234666A (en) * | 2021-12-20 | 2022-03-25 | 中车株洲电力机车有限公司 | Electric locomotive and double-loop cooling tower and control method thereof |
| CN114234666B (en) * | 2021-12-20 | 2023-09-05 | 中车株洲电力机车有限公司 | Electric locomotive, double-loop cooling tower thereof and control method |
| CN114307225A (en) * | 2021-12-30 | 2022-04-12 | 苏州赢众环保有限公司 | Steam condensation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106123623A (en) | A kind of staged heat exchange closed cooling tower | |
| CN103542467B (en) | Air conditioning condensate water utilizing device | |
| CN103743258B (en) | The dry closed cooling tower of a kind of water saving | |
| CN105258549B (en) | A kind of water circulation evaporation and heat-exchange cooling condenser | |
| CN102650503B (en) | Evaporative condensing and cooling device | |
| CN103292397B (en) | Vertical heat pipe and indirect-direct multistage influence diagram air-conditioner set of pipe | |
| CN202648008U (en) | Novel high energy-efficient central air-conditioning water chiller unit | |
| CN206073756U (en) | A kind of staged exchanges heat compound closed cooling tower | |
| CN203323272U (en) | Multistage evaporative cooling air-conditioner with vertical heat pipes and round pipes combined | |
| CN205261805U (en) | Evaporation formula condensing equipment based on separated heat pipe precooling | |
| CN113587486B (en) | Absorption type refrigerating system | |
| CN205014696U (en) | Hydrologic cycle formula stepped cooling condenser | |
| CN205174937U (en) | Sleeve pipe evaporative condenser with fin | |
| CN208547263U (en) | A kind of energy-efficient condenser | |
| CN106440150A (en) | Inner circulation surface cooling type indirect evaporative cooling air treatment unit | |
| CN204301556U (en) | A kind of nested type double tower body double flash evaporation cooling tower | |
| CN207350620U (en) | A kind of source in combination and the air-treatment unit of dew point indirect evaporative cooling technology | |
| CN202133306U (en) | Vacuum evaporative cooling device | |
| CN203100299U (en) | Novel evaporative condenser | |
| CN104501624A (en) | Power plant used cooling system combining evaporative type cooler and surface type condensing system | |
| CN102997346A (en) | Novel energy-efficient cooling dehumidifier | |
| CN102230751A (en) | Vacuum evaporation cooling device | |
| CN104864740B (en) | Dry gas-water cold-heat exchange device | |
| CN109780659A (en) | A kind of separate heat pipe-Dan Fengji indirect evaporating-cooling water cooler | |
| CN205391761U (en) | Quick chemical industry evaporimeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 471132 Luoyang airport industrial cluster area, Luoyang, Henan Applicant after: Longhua Technology Group (Luoyang) Limited by Share Ltd Address before: 471132 Luoyang airport industrial cluster area, Luoyang, Henan Applicant before: Luoyang Longhua Heat Transfer & Energy Conservation Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |