CN104369265B - Concrete standard fog room environment adjustment system and control method - Google Patents
Concrete standard fog room environment adjustment system and control method Download PDFInfo
- Publication number
- CN104369265B CN104369265B CN201410615944.XA CN201410615944A CN104369265B CN 104369265 B CN104369265 B CN 104369265B CN 201410615944 A CN201410615944 A CN 201410615944A CN 104369265 B CN104369265 B CN 104369265B
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- water
- water tank
- steam generation
- fog room
- concrete standard
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- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 197
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 239000007921 spray Substances 0.000 claims abstract description 47
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 238000012360 testing method Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 241000283216 Phocidae Species 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
Abstract
The invention discloses a kind of concrete standard fog room environment adjustment system and control method, this system includes: be arranged at the steam generation water tank within concrete standard fog room, described steam generation water tank is uncovered water tank, and described steam generation water tank is internally provided with heater；Being immersed in the sealing radiator in described steam generation water tank, the water inlet of described sealing radiator is connected to the water source with pressure；It is provided with solenoid electric valve between described sealing radiator and water source；Spray assemblies, it is connected to the delivery port of described sealing radiator, and described spray assemblies comprises multiple spray head for spraying water to described concrete standard fog room.
Description
Technical field
The present invention relates to a kind of construction implement, especially a kind of concrete standard fog room environment regulation is
System and control method.
Background technology
Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD) and State Administration for Quality Supervision and Inspection and Quarantine combine " the normal concrete mechanical property of issue
Energy test method standard " regulation: concrete standard fog room internal temperature need to be maintained at 20 ± 2 DEG C, and humidity needs
It is maintained at more than 95%.
So that the air themperature in concrete standard fog room meets standard, need to support at concrete standard
Protect and room arranges weather adjustment device.Prior art generally use air-conditioning as weather adjustment device.Air-conditioning
Inside comprise various circuit and mechanical device, generally these devices and be not in sealing state, so air-conditioning is long
Time service easily causes the corrosion of internal circuit and mechanical device in the environment of high humility.
Additionally in solidifying soil standard curing room, also need to be provided for the spray equipment of curing concrete test block.By
It is the lowest in the water temperature of external water source at low ambient temperatures, it is impossible to be directly used in the maintenance of concrete test block,
Therefore solidifying soil standard curing room generally also needs to arrange the heater of spray-water.
In prior art, spray-water heater can use the airtight water tank being internally provided with heater,
Connection water source, sealing radiator one end, the other end is connected to shower nozzle, and such sealing radiator can use the pressure at water source
Power drives shower nozzle.But when the control system of heater breaks down, heater is out of control may be by
Water in airtight water tank is heated to boiling.After water boiling, the pressure in sealing radiator can steeply rise, when close
When pressure in seal water tank exceedes its pressure relief capability will there is the potential safety hazard of blast in sealing radiator.
In order to solve sealing radiator as potential safety hazard during spray-water heater, can use with this and not seal
The water tank closed is as spray-water heater, but the water tank do not closed needed at water tank when shower nozzle supplies water
In arrange booster water pump with drive shower nozzle water spray, booster water pump the complexity that can increase equipment is set.
Summary of the invention
The present invention provides a kind of concrete standard fog room environment adjustment system, this concrete standard fog room ring
Border regulation system can be avoided using air-conditioning as the temperature-adjusting device in concrete standard fog room.
Technical scheme includes a kind of concrete standard fog room environment adjustment system, comprising: water
Steam generation water tank, sealing radiator, spray assemblies and control assembly, wherein:
Described steam generation water tank is arranged at inside concrete standard fog room, described steam generation water tank
For uncovered water tank, described steam generation water tank be internally provided be connected to described control assembly add hot charging
Put；
Described sealing radiator is immersed in described steam generation water tank, the water inlet connection of described sealing radiator
In water source；The Electromagnetic Control being controlled by described control assembly it is provided with between described sealing radiator and described water source
Valve；
Described spray assemblies is connected to the delivery port of described sealing radiator, described spray assemblies include for
The spray head of described concrete standard fog room water spray；
Described control assembly include being arranged at air temperature sensor within described concrete standard fog room with
And be connected with described air temperature sensor, for detecting that air themperature is low in described air temperature sensor
When air themperature threshold value, control described heater improve the controller of described steam generation water tank water temperature.
Concrete standard fog room environment adjustment system of the present invention further improvement is that: described steam occurs
Water tank is internally provided with the water tank temperature sensor being connected to described controller, when described water tank temperature sensor
Detect that, when water temperature is less than water temperature threshold value in described steam generation water tank, described controller controls described heating
Device improves the water temperature in described steam generation water tank.
Concrete standard fog room environment adjustment system of the present invention further improvement is that: described control assembly is also
Including being arranged at the air humidity sensor being connected inside described concrete standard fog room with described controller,
When described air humidity sensor detects that described concrete standard fog room interior humidity is less than humidity threshold
Time, described controller controls the conducting of described solenoid electric valve and described spray assemblies is sprayed water.
Concrete standard fog room environment adjustment system of the present invention further improvement is that: described steam occurs
Water tank and sealing radiator are that Plate Welding forms.
Concrete standard fog room environment adjustment system of the present invention further improvement is that: described heater sets
It is equipped with overtemperature protection system and earth leakage protective device.
Technical scheme also includes a kind of concrete standard fog room environment adjustment method, comprising:
One uncovered steam generation water tank is provided；
Sealing radiator is immersed in described steam generation water tank, water source is connected to described sealing radiator
Water inlet, the delivery port that spray assemblies is connected to described sealing radiator is communicated in spray assemblies；
In described water vapour generation water tank, heater is set；
Water in described steam generation water tank is heated by described heater；
Described steam generation water tank utilizes the mode of heat transfer to heat described sealing radiator；
Described sealing radiator is connected by the interval scheduled time with described water source, after described water source is connected, described
Under the hydraulic drives at water source, described spray assemblies sprays to the concrete test block within described concrete standard fog room
Water curing；
When the internal temperature of described concrete standard fog room is too low, regulates described heater and improve described water
The water temperature of steam generation water tank is to increase the heat that described steam generation water tank distributes.
Further improvement is that of concrete standard fog room environment adjustment method of the present invention: when described concrete
When standard curing room inner air humidity humidity is less than humidity threshold, described sealing radiator and described water source are connect
Logical, described spray assemblies is sprayed water under the driving of described water source hydraulic pressure in described concrete standard fog room.
Technical scheme makes it have following technique effect owing to using above technical scheme: the present invention
Technical scheme use hot water and steam and water smoke to maintain concrete standard fog room in temperature and humidity, keep away
Exempt from the use of air-conditioning.Use the mode the combining water tank sealing radiator to being soaked in steam generation water tank
Carry out heat transfer heating, after so can avoiding the boiling of the water in sealing radiator, bring potential safety hazard.Produce heat
The steam generation water tank of water vapour also can heat be positioned in sealing radiator for concrete test block maintenance cold
Water, it is to avoid use the quality problems that the maintenance of concrete test block is brought by cold water.Additionally the one of sealing radiator
End is connected to the water source other end and is connected to spray assemblies, and the hydraulic pressure that so can directly utilize water source will seal water
Water output spray assemblies in case, it is to avoid booster water pump is set.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of concrete standard fog room environment adjustment system of the present invention.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the present invention easily.The present invention can also pass through
The most different detailed description of the invention is carried out or applies, and the every details in this specification can also be based on
Different viewpoints and application, carry out various modification or change under the spirit without departing from the present invention.
It should be noted that structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only use
To coordinate the content disclosed in specification, understand for those skilled in the art and read, and being not used to limit
Determine the enforceable qualifications of the present invention, therefore do not have technical essential meaning, the modification of any structure, ratio
The change of example relation or the adjustment of size, do not affecting effect that the present invention can be generated by and the mesh that can reach
Under, all should still fall in the range of disclosed technology contents obtains and can contain.Meanwhile, this explanation
In book cited as " on ", D score, "left", "right", the term of " middle " and " " etc., be merely convenient to
Understanding of narration, and it is not used to limit the enforceable scope of the present invention, being altered or modified of its relativeness,
Changing under technology contents without essence, when being also considered as the enforceable category of the present invention.
Fig. 1 is the schematic diagram of concrete standard fog room environment adjustment system of the present invention.As it is shown in figure 1, this
Invention concrete standard fog room environment adjustment system is mainly used in adjusting concrete standard maintenance under low temperature environment
The temperature and humidity of room, it specifically includes that steam generation water tank 10, sealing radiator 20, spray assemblies 30
And control assembly 40.
Steam generation water tank 10 is arranged at inside concrete standard fog room, and it is uncovered for Plate Welding one-tenth
Water tank.The heater 11 being connected to control assembly 40 it is provided with in the bottom of steam generation water tank 10,
The moisture in water tank 10 is there is in heater 11 for adding hot steam under the control controlling assembly 40.Water
Water in steam generation water tank 10 can generate steam after being heated, and the water vapour of generation is used for keeping concrete mark
The heat that is stable and that give out with steam of the air humidity within quasi-fog room can promote water coagulation soil
Temperature in standard curing room.
Steam generation water tank 10 is internally provided with water tank temperature sensor 24 and is controlled by control assembly 40
Heater 11.Control assembly 40 to be measured in steam generation water tank 10 by water tank temperature sensor 24
The water temperature in portion, when water temperature is less than water temperature threshold value, control assembly 40 controls heater 11 and sends out steam
Raw water tank 10 carries out heating to promote the water temperature in steam generation water tank 10 to target temperature.
Being internally provided with sealing radiator 20 at steam generation water tank 10, sealing radiator 20 is immersed in steam
Below the liquid level of water tank 10 occurs, and the liquid level of steam generation water tank 10 is higher than the upper surface of sealing radiator 20
150mm.Sealing radiator 20 is formed by Plate Welding, and it includes delivery port 21 and a water inlet 22.Go out
The mouth of a river 22 connects spray assemblies 30.Spray assemblies 30 includes that a pipeline 31 and interval are installed on pipeline
Spray head 32 on 31.Spray assemblies 30 is converted by the water in spray head 32 in the future self sealss water tank 20
For water mist spray in concrete standard mixes fog room.
Wherein water inlet 22 is connected to the water source 50 with certain pressure, between water source 50 and water inlet 22
Being provided with solenoid electric valve 23, solenoid electric valve 23 is connected to control assembly 40.Control when controlling assembly 40
When solenoid electric valve 23 turns on, water source 50 is to sealing radiator 20 water filling, when being full of water in sealing radiator 20
Time, the water in sealing radiator 20 enters in spray assemblies 30 under the effect of the pressure at water source 50.So when
When solenoid electric valve 23 turns on, sealing radiator 20 can utilize the hydraulic pressure at water source 50 by sealing radiator 20
Hot water exports to spray assemblies 30.This way of supplying water to spray assemblies 30 can make full use of water source
The hydraulic pressure of 50, it is also possible to avoid the booster water pump being provided for supplying water to spray assemblies 30 in water tank.
The water temperature generally ratio at the water source 50 supplied water to sealing radiator 20 at low ambient temperatures is relatively low, owing to sealing
Water tank 20 is immersed in steam generation water tank 10, therefore in the effect lower seal water tank 20 of heat transfer
Temperature can gradually rise up to identical with the temperature of steam generation water tank 10.Owing to using the mode pair of heat transfer
The sealing radiator 20 being soaked in steam generation water tank 10 heats, therefore the water in sealing radiator 20
Will not seethe with excitement, such sealing radiator 20 does not haves the excessive potential safety hazard brought of pressure after water boiling.
Control air humidity sensor 41, sky that assembly 40 includes being arranged in described concrete standard fog room
Temperature sensor 42 and controller 43.Air temperature sensor 42 and air humidity sensor 41
It is connected to controller 43.Detect that concrete standard is supported when controlling assembly 40 by air temperature sensor 42
When protecting the temperature in room less than air themperature threshold value, the controller 43 controlling assembly 40 controls heater 11
The temperature promoting steam generation water tank 10 and then the amount of the steam increasing the volatilization of steam generation water tank 10
To improve the temperature in concrete standard fog room and humidity.Sensed by air humidity when controlling assembly 40
Device 41 detects that the humidity in concrete standard fog room, less than air humidity threshold, controls the control of assembly 40
Device 43 processed controls solenoid electric valve 23 and turns on, and after solenoid electric valve 23 conducting, spray assemblies 30 is to concrete
Standard curing room sprays water smoke.Additionally the reference block in concrete standard fog room is also required to periodically spray
Water curing, controls assembly 40 and controls solenoid electric valve 23 and turn on when reference block needs maintenance, spray group
Part 30 sprays water smoke to reference block.
Steam generation water tank 10 and sealing radiator 20 in the present embodiment are Plate Welding and form.For
Prevent heater 11 and temperature is too high or electric leakage, heater 11 and be provided with overheated guarantor
Protection unit and earth leakage protective device.
Technical scheme makes it have following technique effect owing to using above technical scheme: the present invention
Technical scheme use hot water and steam and water smoke to maintain concrete standard fog room in temperature and humidity, keep away
Exempt from the use of air-conditioning.Use the mode the combining water tank sealing water to being soaked in steam generation water tank 10
Case 20 carries out heat transfer heating, brings potential safety hazard after so can avoiding the boiling of the water in sealing radiator 20.
The steam generation water tank producing hot water and steam also can heat and is positioned in sealing radiator for concrete test block maintenance
Cold water, it is to avoid use the quality problems that the maintenance of concrete test block is brought by cold water.Additionally sealing radiator
One end of 20 is connected to the water source other end and is connected to spray assemblies 30, so can directly utilize the hydraulic pressure at water source
Water in sealing radiator 20 is exported spray assemblies 30, it is to avoid booster water pump is set.
The above is only presently preferred embodiments of the present invention, and the present invention not does any pro forma limit
System, any those skilled in the art, the technology contents of available the disclosure above make a little change or
It is modified to the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to this
Any simple modification, equivalent variations and the modification that above example is made by the technical spirit of invention, the most still belongs to
In the range of technical solution of the present invention.
Claims (7)
1. a concrete standard fog room environment adjustment system, it is characterised in that including: steam generation water
Case, sealing radiator, spray assemblies and control assembly, wherein:
Described steam generation water tank is arranged at inside concrete standard fog room, described steam generation water tank
For uncovered water tank, described steam generation water tank be internally provided be connected to described control assembly add hot charging
Put；
Described sealing radiator is immersed in described steam generation water tank, the water inlet connection of described sealing radiator
In water source；The Electromagnetic Control being controlled by described control assembly it is provided with between described sealing radiator and described water source
Valve；
Described spray assemblies is connected to the delivery port of described sealing radiator, described spray assemblies include for
The spray head of described concrete standard fog room water spray；
Described control assembly include being arranged at air temperature sensor within described concrete standard fog room with
And be connected with described air temperature sensor, for detecting that air themperature is low in described air temperature sensor
When air themperature threshold value, control described heater improve the controller of described steam generation water tank water temperature.
2. concrete standard fog room environment adjustment system as claimed in claim 1, it is characterised in that: institute
State steam generation water tank and be internally provided with the water tank temperature sensor being connected to described controller, when described water
Case temperature sensor detects when water temperature is less than water temperature threshold value in described steam generation water tank, described controller
Control described heater and improve the water temperature in described steam generation water tank.
3. concrete standard fog room environment adjustment system as claimed in claim 1, it is characterised in that: institute
State control assembly also to include being arranged at the sky being connected inside described concrete standard fog room with described controller
Gas humidity sensor, when described air humidity sensor detects described concrete standard fog room interior humidity
During less than humidity threshold, described controller controls the conducting of described solenoid electric valve and described spray assemblies is sprayed
Water.
4. concrete standard fog room environment adjustment system as claimed in claim 1, it is characterised in that: institute
State steam generation water tank and sealing radiator is that Plate Welding forms.
5. concrete standard fog room environment adjustment system as claimed in claim 1, it is characterised in that: institute
State heater and be provided with overtemperature protection system and earth leakage protective device.
6. a concrete standard fog room environment adjustment method, it is characterised in that including:
One uncovered steam generation water tank is provided；
Sealing radiator is immersed in described steam generation water tank, water source is connected to described sealing radiator
Water inlet, is connected to the delivery port of described sealing radiator by spray assemblies；
In described water vapour generation water tank, heater is set；
Water in described steam generation water tank is heated by described heater；
Described steam generation water tank utilizes the mode of heat transfer to heat described sealing radiator；
Described sealing radiator is connected by the interval scheduled time with described water source, after described water source is connected, described
Under the hydraulic drives at water source, described spray assemblies sprays to the concrete test block within described concrete standard fog room
Water curing；
When the internal temperature of described concrete standard fog room is too low, regulates described heater and improve described water
The water temperature of steam generation water tank is to increase the heat that described steam generation water tank distributes.
7. concrete standard fog room environment adjustment method as claimed in claim 6, it is characterised in that: when
When described concrete standard fog room inner air humidity is less than humidity threshold, by described sealing radiator and described
Water source connect, described spray assemblies under the driving of described water source hydraulic pressure in described concrete standard fog room
Water spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615944.XA CN104369265B (en) | 2014-11-05 | 2014-11-05 | Concrete standard fog room environment adjustment system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410615944.XA CN104369265B (en) | 2014-11-05 | 2014-11-05 | Concrete standard fog room environment adjustment system and control method |
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| Publication Number | Publication Date |
|---|---|
| CN104369265A CN104369265A (en) | 2015-02-25 |
| CN104369265B true CN104369265B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410615944.XA Active CN104369265B (en) | 2014-11-05 | 2014-11-05 | Concrete standard fog room environment adjustment system and control method |
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| CN (1) | CN104369265B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437361A (en) * | 2015-12-22 | 2016-03-30 | 湖南三一快而居住宅工业有限公司 | Precast concrete component curing forming device |
| CN109610324A (en) * | 2018-12-07 | 2019-04-12 | 江西集银科技有限公司 | A kind of bridge hanging basket Deck curing facility and control method |
| CN109483710B (en) * | 2018-12-24 | 2020-08-11 | 淮安凡之晟远大建筑工业有限公司 | Maintenance method and system for PC prefabricated part production line |
| CN111633800B (en) * | 2020-06-09 | 2022-03-25 | 江西伟能建设工程有限公司 | Constant-temperature atomized concrete curing box and control method thereof |
| CN114986679B (en) * | 2022-06-07 | 2024-02-02 | 北京市市政二建设工程有限责任公司 | Concrete heating method, system, terminal and computer readable storage medium |
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| CN2717648Y (en) * | 2003-10-17 | 2005-08-17 | 重庆钢铁(集团)有限责任公司 | Spray equipment for curing and lowering temperature of concrete prefab |
| CN200998886Y (en) * | 2007-01-23 | 2008-01-02 | 俞加友 | Humiture even concrete maintenance chamber |
| JP2008132735A (en) * | 2006-11-29 | 2008-06-12 | Kubota Matsushitadenko Exterior Works Ltd | Curing device and curing rack of ceramic molding |
| CN101269522A (en) * | 2008-05-05 | 2008-09-24 | 中铁十一局集团有限公司 | Directly ventilated type full-automatic concrete constant-temperature moisture-keeping maintaining machine |
| CN202241559U (en) * | 2011-09-08 | 2012-05-30 | 宿迁华夏建设(集团)工程有限公司 | Automatic concrete spraying and curing system |
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- 2014-11-05 CN CN201410615944.XA patent/CN104369265B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717648Y (en) * | 2003-10-17 | 2005-08-17 | 重庆钢铁(集团)有限责任公司 | Spray equipment for curing and lowering temperature of concrete prefab |
| JP2008132735A (en) * | 2006-11-29 | 2008-06-12 | Kubota Matsushitadenko Exterior Works Ltd | Curing device and curing rack of ceramic molding |
| CN200998886Y (en) * | 2007-01-23 | 2008-01-02 | 俞加友 | Humiture even concrete maintenance chamber |
| CN101269522A (en) * | 2008-05-05 | 2008-09-24 | 中铁十一局集团有限公司 | Directly ventilated type full-automatic concrete constant-temperature moisture-keeping maintaining machine |
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Also Published As
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| CN104369265A (en) | 2015-02-25 |
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Effective date of registration: 20231121 Address after: No.1, 2, 3, 4, 5, 6, 7, 8, 8 / F, East Building, building 13, no.1480, Tianfu Avenue North Section, Chengdu hi tech Zone, Sichuan 610000 Patentee after: Southwest Construction Engineering Co.,Ltd. of China Construction Eighth Engineering Bureau Address before: 200122 27th floor, 1568 Century Avenue, Pudong New Area, Shanghai Patentee before: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION Co.,Ltd. |