CN204955082U - Cement pipe heat setting equipment - Google Patents
Cement pipe heat setting equipment Download PDFInfo
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- CN204955082U CN204955082U CN201520705655.9U CN201520705655U CN204955082U CN 204955082 U CN204955082 U CN 204955082U CN 201520705655 U CN201520705655 U CN 201520705655U CN 204955082 U CN204955082 U CN 204955082U
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Abstract
The utility model provides a cement pipe heat setting equipment, relates to concrete duct, especially the hot steam temperature of accurate control, time, leads to superheated steam and maintains the cement pipe heat setting equipment of design to concrete duct. The utility model discloses a cement pipe heat setting equipment, this modular system of its characterized in that includes steam boiler, steam conduit, temperature measurement ware, air -blast device and controller, and the air inlet of steam conduit is connected on steam boiler, and the air -blast device is installed on the steam conduit, and the temperature measurement ware sets up in the gas outlet top of steam conduit, and the controller is connected with temperature measurement ware, steam boiler and air -blast device respectively. The utility model discloses a cement pipe heat setting equipment, the design science, rational in infrastructure, copy control ware control steam boiler and air -blast device are according to the cement pipe in the required temperature adjustment steam volume of maintenance in -process to this satisfies best temperature control of cement pipe maintenance in -process, improves control accuracy, the quality of assurance cement pipe that can be better.
Description
Technical field
The utility model relates to concrete duct, especially a kind of accurately control vapours temperature, time, carries out the pipe of cement heat-shaping equipment maintaining sizing by vapours to concrete duct.
Background technology
Concrete duct is also known as concrete reinforced pipe, and it can build sewer pipe in base as urban construction, can sewer, flood control draining, and the upper hose used in some special factories and miness and farmland motor-pumped well.Generally be divided into: flat mouth armored concrete pipe of cement, flexible tongue and groove armored concrete pipe of cement, bell and spigot armored concrete pipe of cement, F shaped steel bellmouth pipe of cement, flat mouth cover ring interface pipe of cement, tongue and groove pipe of cement etc.At present, conventional pipe of cement bore scope is between 300mm-3000mm, and the pipe of cement of 3000mm bore is in the field of business is also referred to as heavy caliber pipe of cement; And bore is more than 3000mm, what reach 4000mm is then called super large caliber pipe of cement, because caliber is larger, the hydraulic pressure of pipe of cement inside is also larger, in normal use procedure, the hydraulic pressure of its inside can reach 2kg/cm2, therefore all has higher requirement to the seal of pipe of cement internal intensity and interface.
The pipe of cement completed, need just can use through maintenance, maintenance method is divided into two kinds usually: steam-cured method and natural curing method, and steam-cured method utilizes high-temperature steam to carry out maintenance to shaping rear pipe of cement, usual steam-cured 7-9 hour; And natural curing method does not need steam-cured pond, directly pipe of cement and mould are placed on and outdoorly carry out natural curing, the usual needs time of one day carries out outdoor maintenance, die sinking in second day, the natural curing carrying out 4-6 days is also needed after die sinking, also want special messenger to spray three water to pipe of cement every day simultaneously, concrete oneself is slowly solidified.Comparatively speaking, steam-cured method cost is high, but efficiency is also high, and natural curing method cost is lower, and corresponding efficiency is also lower.
Steam curing process be generally divided into quietly to stop, heat up, constant temperature, 4 stages of cooling, in order to prevent pipe of cement from causing concrete to produce crack because internal-external temperature difference is excessive or thermostat temperature is too high, strictly should control the heating-cooling speed in steam-cured process and thermostat temperature.
1, quietly the stage is stopped.Quietly stop the stage and also claim precuring phase, preposition phase or standing phase, for after cement pipe molding and steam curing start before one period of standing time under atmospheric environment.This stage mainly ensures that in concrete, cement has carried out aquation to a certain degree, has certain structural strength, expands to structure generation destruction to prevent temperature raising period volume of concrete.Rest time in stage should make the appropriate adjustments in the change of environmentally temperature, but should follow and should grow unsuitable short principle, generally should not be less than 1.5 hours.
2, the temperature rise period.Temperature rise period is divided into two steps, is namely warming up to 60 degrees centigrade from environment temperature; Rise to 80 degrees centigrade again after keeping two hours, then keep 2 hours.If the pipe of cement early stage precuring time is longer, nascent structure intensity is higher, and heating rate can correspondingly improve; Otherwise, then slow intensification is needed.In season in summer in autumn two, heating rate should control per hour hour of 25 degrees centigrade; Should control in season in winter in spring two to be advisable 15 degrees centigrade are per hour.If obvious crackle appears in product surface, then heating rate should be reduced.
3, the constant temperature stage.The main control parameters in constant temperature stage is thermostat temperature and constant temperature time.For cement and concrete pipe of cement, the curing time in constant temperature stage is longer, and the strength development of pipe of cement intensity that is faster and final acquisition is higher.But too high thermostat temperature and the longer heat time of supporting can cause the loss of pipe of cement later strength or other characteristic impaired, so select suitable thermostat temperature extremely important for steam-cured process.The temperature in constant temperature stage should remain on 80 degrees centigrade, and humid control is 85%---95%, and the retention time should control at 2-3 hours.
4, temperature-fall period.Temperature-fall period slowly will stop vapour, uniform decrease in temperature, maintenance humidity.In season in summer in autumn two, rate of temperature fall should control at 25 degrees centigrade per hour; Should control in season in winter in spring two to be advisable 15 degrees centigrade are per hour.Time used was determined according to the production cycle, and the temperature-fall period time, the longer the better.After steam curing is removed completely, still must carrying out maintenance to pipe of cement, as covered geotextiles moisturizing, spraying warm water, ensure high-strength concrete late maintaining quality, reduce the generation in crack.
Crack Control Technology: the generation in steam curing cement and concrete pipe of cement crack mainly contains 2 kinds, a kind of crack being steam curing system improperly and causing, a kind of crack being improper conservation system after demoulding and causing.The former mainly causes concrete " swelling " because concrete is heated uneven, or and that cause shear stress inharmonious due to the expansion between concrete and mould; The latter mainly pipe of cement just takes out from steam curing mould, and temperature is higher, and is directly exposed in air, and concrete is the non-conductor of heat, inner high temperature is excessive with the low temperature difference on surface, and the thermograde from core to surface is excessive, thus causes larger temperature stress.Generally the former solution is by lot of experiments determination steam curing system and rational steam curing process, the latter's solution adopts water curing, namely the humidity of concrete surface is ensured, control concrete temperature gradient again, make the thermograde of core concrete milder, excessive temperature stress can not be produced, avoid the generation in crack.
At present, in steam curing process, time and vapor (steam) temperature are by manually controlling, and control accuracy is poor, cause pipe of cement quality unstable.
Summary of the invention
To be solved in the utility model is exactly existing pipe of cement steam curing process, its vapor (steam) temperature and time are by manually controlling, precision is lower, cause the problem of pipe of cement quality instability, there is provided a kind of and accurately control vapours temperature, time, by vapours, the pipe of cement heat-shaping equipment maintaining sizing is carried out to concrete duct.
Pipe of cement heat-shaping equipment of the present utility model, it is characterized in that this modular system comprises steam boiler, jet chimney, temperature meter, air-blast device and controller, the air inlet of jet chimney is connected on steam boiler, air-blast device is arranged on jet chimney, temperature meter is arranged on above the gas outlet of jet chimney, and controller is connected with temperature meter, steam boiler and air-blast device respectively.
Described controller is placed in control cabinet, and set temperature display screen and time display screen on control cabinet, temperature display is all connected with controller with time display screen.
Described jet chimney is provided with minimum two gas outlets, one of them gas outlet is arranged on pipe of cement pipe interior, another gas outlet is arranged on pipe of cement outside, carries out steam curing by least two gas outlets to pipe of cement simultaneously, improves maintenance efficiency and effect.
The pipe of cement made is placed on steam curing region, ensure that at least one gas outlet of jet chimney is arranged on pipe of cement pipe interior, adjust other positions, gas outlet of jet chimney simultaneously, its steam-energy is made better to be sprayed on pipe of cement outer wall, utilize temperature meter to monitor the temperature at pipe of cement place in real time, and temperature data is fed back to controller, adjust steam boiler and air-blast device by controller, improve or reduce quantity of steam, adjusting the vapor (steam) temperature at pipe of cement place with this; Controller, also by temperature display and the real-time displaying time of time display screen and temperature regime, is convenient to monitoring.
Pipe of cement heat-shaping equipment of the present utility model, design science, rational in infrastructure, easy to use, utilize controller to control steam boiler and air-blast device, according to the temperature adjustment quantity of steam that pipe of cement is required in maintenance processes, control with the optimum temperature that this meets in pipe of cement maintenance processes, improve control accuracy, the quality of pipe of cement can better be ensured.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein, steam boiler 1, jet chimney 2, temperature meter 3, air-blast device 4, controller 5, gas outlet 6.
Detailed description of the invention
Embodiment 1: a kind of pipe of cement heat-shaping equipment, this modular system comprises steam boiler 1, jet chimney 2, temperature meter 3, air-blast device 4 and controller 5, the air inlet of jet chimney 2 is connected on steam boiler 1, air-blast device 4 is arranged on jet chimney 2, temperature meter 3 is arranged on above the gas outlet 6 of jet chimney 2, and controller 5 is connected with temperature meter 3, steam boiler 1 and air-blast device 4 respectively.Controller 5 is placed in control cabinet, and set temperature display screen and time display screen on control cabinet, temperature display and time display screen are all connected with controller 5.Jet chimney 2 is provided with minimum two gas outlets 6, one of them gas outlet 6 is arranged on pipe of cement pipe interior, another gas outlet 6 is arranged on pipe of cement outside, carries out steam curing by least two gas outlets 6 to pipe of cement simultaneously, improves maintenance efficiency and effect.
The pipe of cement made is placed on steam curing region, ensure that at least one gas outlet 6 of jet chimney 2 is arranged on pipe of cement pipe interior, adjust other positions, gas outlet 6 of jet chimney 2 simultaneously, its steam-energy is made better to be sprayed on pipe of cement outer wall, utilize the temperature at temperature meter 3 monitoring in real time pipe of cement place, and temperature data is fed back to controller 5, adjust steam boiler 1 and air-blast device 4 by controller 5, improve or reduce quantity of steam, adjusting the vapor (steam) temperature at pipe of cement place with this; Controller 5, also by temperature display and the real-time displaying time of time display screen and temperature regime, is convenient to monitoring.
Claims (3)
1. a pipe of cement heat-shaping equipment, it is characterized in that this modular system comprises steam boiler (1), jet chimney (2), temperature meter (3), air-blast device (4) and controller (5), the air inlet of jet chimney (2) is connected on steam boiler (1), air-blast device (4) is arranged on jet chimney (2), temperature meter (3) is arranged on the top, gas outlet (6) of jet chimney (2), and controller (5) is connected with temperature meter (3), steam boiler (1) and air-blast device (4) respectively.
2. pipe of cement heat-shaping equipment as claimed in claim 1, it is characterized in that described controller (5) is placed in control cabinet, set temperature display screen and time display screen on control cabinet, temperature display and time display screen are all connected with controller (5).
3. pipe of cement heat-shaping equipment as claimed in claim 1, it is characterized in that described jet chimney (2) being provided with minimum two gas outlets (6), one of them gas outlet (6) is arranged on pipe of cement pipe interior, and another gas outlet (6) are arranged on pipe of cement outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705655.9U CN204955082U (en) | 2015-09-14 | 2015-09-14 | Cement pipe heat setting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705655.9U CN204955082U (en) | 2015-09-14 | 2015-09-14 | Cement pipe heat setting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204955082U true CN204955082U (en) | 2016-01-13 |
Family
ID=55050174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705655.9U Expired - Fee Related CN204955082U (en) | 2015-09-14 | 2015-09-14 | Cement pipe heat setting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204955082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702358A (en) * | 2017-09-11 | 2018-02-16 | 北京兆阳光热技术有限公司 | A kind of high temperature resistant solid-state heat reservoir steams water flushing method |
-
2015
- 2015-09-14 CN CN201520705655.9U patent/CN204955082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702358A (en) * | 2017-09-11 | 2018-02-16 | 北京兆阳光热技术有限公司 | A kind of high temperature resistant solid-state heat reservoir steams water flushing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160914 |