CN1056646A - The method and apparatus of circulation damp-heat air curing concrete goods - Google Patents
The method and apparatus of circulation damp-heat air curing concrete goods Download PDFInfo
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- CN1056646A CN1056646A CN 90105826 CN90105826A CN1056646A CN 1056646 A CN1056646 A CN 1056646A CN 90105826 CN90105826 CN 90105826 CN 90105826 A CN90105826 A CN 90105826A CN 1056646 A CN1056646 A CN 1056646A
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Abstract
A kind of method and apparatus of the damp-heat air curing concrete goods that circulate.This invention is the rapid curings of thermal medium accelerate concrete goods with the damp-heat air, and its device is made of fog room, damp-heat air producer, circulating fan, steam line, flue, air-introduced machine, chimney.This invention has compared with prior art that the maintenance cost is low, equipment investment is few, only accounts for 1/8 of steam curing of concrete goods equipment investment, and maintenance process is rationally less to the late strength of concrete influence, and energy consumption is low, thermal efficiency advantages of higher.
Description
The present invention relates to a kind of method and apparatus of the damp-heat air curing concrete goods that circulate.Being specifically related to is to be thermal medium with the damp-heat air, when concrete product make moulding put into concrete curing chamber after, input circulation damp-heat air and concrete product carry out heat exchange, make the concrete product quick-hardening.
Great majority employing steam is thermal medium in the maintenance process of accelerate concrete goods at home and abroad at present.Though saturated pure steam heat content height, can be with higher condensation heat intensity Fast Heating concrete product, can guarantee the required humidity of hardening, but this method has weak point: 1. this too the emphasis from the method for thermal conduction study angle Selection medium, ignored the destruction of damp and hot expansion to concrete product; 2. though the maintenance of this method energy accelerate concrete goods need organize production, conveying, the outfit one of steam to overlap auxiliary equipment specially, has increased construction investment and production cost greatly; 3. effective utilization rate of thermal energy is low, and energy resource consumption is bigger.In addition, only find the Chinese patent CN85103796 of a piece " method and apparatus of recirculated hot air in board drying apparatus " by literature search.It only is with heated dry air sheet material to be dried, and is not suitable for the maintenance of concrete product.
The objective of the invention is to avoid above-mentioned some weak point of the prior art, and a kind of method and apparatus of the damp-heat air curing concrete goods that circulate is provided.
The present invention is according to (1) heat exchanger principle; (2) thermal content of hot-air and convection heat transfer intensity obviously improve with the increase of humidity, flowing velocity.When bringing up to 60%, 100% when relative humidity, the heat content of one kilogram of hot-air is 719,1517.4KJ/m
3Hc, the convection transfer rate of hot-air can reach 419KJ/m during forced convertion
3Hc; (3) in hot-air, sneak into steam can avoid the concrete product dehydration too much, to guarantee principle design such as concrete product aquation condition.Implementing method of the present invention is to form damp-heat air after sneaking into vapor mixing in the hot-air.Be that thermal medium circulates with concrete product by orientation and carries out heat exchange with the damp-heat air, the concrete product temperature raise rapidly reach the purpose of quick-hardening.Implementing device of the present invention is made of fog room, damp-heat air producer, circulating fan, steam line, flue, chimney meatus draught fan, chimney.Wherein the design of fog room is basic identical with the steam-curing chamber; Circulating fan is installed in the outer side of fog room, air-vent is communicated with fog room and damp-heat air producer respectively with exhaust outlet; Steam line is installed on the maintenance locular wall, and steam line is provided with several nozzles, and nozzle and locular wall form an angle; Flue communicates with chimney meatus draught fan and chimney by fog room, and flue is to allow the fume afterheat of damp-heat air producer discharge be dispersed in the fog room for fully improving heat utilization efficiency by fog room; The damp-heat air producer is located at the outer and circulating fan the same side of fog room.The damp-heat air producer by be in the combustion chamber in the same housing, uncovered water evaporation tank and shell-and-tube heat exchanger constitutes.The water evaporation tank is centered around around the combustion chamber, protects outer wall of combustion chamber simultaneously producing steam, improves body of heater service life.Shell-and-tube heat exchanger is made of parallel smoke pipe bundle and front and back smoke box, back smoke box distributor chamber, lower smoke box and plate washer.The door side of body of heater outside is equipped with water level control meter, is used to control the variation of water level in the water evaporation tank.The course of work of the present invention: when fuel during in combustion chambers burn (1) high-temperature flue gas because the draft of air-introduced machine, by several groups of parallel smoke pipe Shu Xianhou from back smoke box, front smoke box again through after the smoke box distributor chamber enter lower smoke box and enter flue from exhanst gas outlet again.Flue gas in flue to the fog room dissipate excess heat; (2) because entering heat exchanger from air inlet, the effect of circulating fan air to be heated become hot-air by heating rapidly through all tube banks of flowing through of the guiding air of plate washer; (3) the water evaporation tank is subjected to the influence of combustion chambers burn to continue to produce steam, and steam forms damp-heat air with very fast mixing of hot-air.Enter steam line from the damp-heat air delivery outlet; (4) damp-heat air is constantly carried to steam line under the circulating fan effect, sprays into fog room by nozzle and damp-heat air is circulated in the process in orientation carry out heat exchange with concrete product.Damp-heat air after the cooling is recycled again sends into fog room after blower fan is incorporated into heating of damp-heat air producer and humidification again.Heating so repeatedly and with the concrete product heat exchange, the concrete product temperature is improved rapidly, reach quick-hardening.
Introduce accompanying drawing of the present invention below, and narrate embodiment in conjunction with the accompanying drawings.
The method and apparatus planar structure layout drawing of accompanying drawing 1 circulation damp-heat air curing concrete goods.
Accompanying drawing 2 damp-heat air producer cut-away views.
Accompanying drawing 3 damp-heat air producer internal structure A-A profiles.
Accompanying drawing 4 damp-heat air producer internal structure B-B profiles.
Accompanying drawing 5 damp-heat air producer internal structure C-C profiles.
In accompanying drawing 1: 1-concrete product fog room, 2-damp-heat air producer, the 3-circulating fan, is installed in high 1/2 place of maintenance locular wall at 4-damp-heat air steam line, nozzle downwards and locular wall form an angle.The 5-flue, it is drawn after the fog room bottom is passed through from the damp-heat air producer, the 6-chimney meatus draught fan, 7-chimney, 8-need the concrete product of maintenance.
In accompanying drawing 2,3,4,5: 2-1 combustion chamber, the uncovered water evaporation tank of 2-2, the smoke pipe bundle that 2-3 is parallel, the 2-4 front smoke box, smoke box behind the 2-5,2-6 lower smoke box, the 2-7 baffle plate, 2-8 damp-heat air delivery outlet communicates with steam line, and 2-9 flue gas delivery outlet communicates with flue, 2-10 water level control meter, the 2-11 fire door, 2-12 stove cleaning door, smoke box distributor chamber behind the 2-13, the 2-14 air inlet, air to be heated enters heat exchanger by this mouth.
The embodiment of the invention: press circulation damp-heat air curing concrete article device of accompanying drawing building.Design of (1) fog room among this embodiment and steam curing pit foundation are originally identical, and fog room is a semi-underground type, and the dead size of every chamber is 7.23 * 4.53 * 1.85m, volume 60m
3Once but the maintenance criteria plate is 6.Take all the people present's fog room to be chained together, the damp-heat air producer is located in the passageway of a side.Comprise the operation passageway, every fog room floor space 52m
2For raising the efficiency, the thermal insulation structure of in the design of fog room wall, having taked air blanketing and airtight PEP cystosepiment to combine with the aluminium sheet liner.The maintenance chamber cap is a double-layer steel plate structure, middle filling glass cotton.The maintenance chamber cap is established one of hand-hole for one jiao, and the hole place adopts double-deck movable glass steel cage.Water sealed tank is adopted in the sealing of maintenance chamber cap and fog room wall, for more effective the lost of heat that prevent, has increased by a circle rubber tube around by the water sealed tank inboard; (2) the damp-heat air producer is taked filling glass cotton between double Shell for reducing the radiation loss of body of heater.The fuel of this producer is that fire coal, combustion bavin are dual-purpose.The damp-heat air temperature that produces is 150～200 ℃, damp-heat air flow 700-1000m
3/ h, heat exchanger area 6.5m
2, the about 20kg/h of evaporation capacity, average coal consumption 10-15kg/h, appearance and size φ 1000 * 1600; Circulating fan air-vent temperature generally is no more than 85 ℃, and this embodiment adopts common centrifugal blower.(4) supply air line adopts φ 76～φ 90 steel pipes, and around one week of chamber wall, be located on the high position of about 1/2 wall, supply air line is provided with 9 nozzles and is welded on pipeline below and wall into about 30 ° of angles.(5) under the normal heat supply situation of flue and chimney meatus draught fan, temperature is about 250～300 ℃ in the flue, for making full use of the heat radiation of flue, flue is located at the bottom of fog room, the shared chimney meatus draught fan of all the people present's fog room, flashboard all is housed, to control the air inducing amount of damp-heat air producer separately on the branch road of every fog room flue.Damp-heat air heat medium temperature when normal maintenance in the fog room is 80-90 ℃, and humidity is 50～90%.When environment temperature is 20 ℃, intensification 4-5 hour, constant temperature 8-12 hour, stop to take regenerative conservation behind the air feed.Whole curing time was at 15～21 hours, and concrete product goes out the chamber after reaching design strength 70%.
The advantage that the present invention compared with prior art has is that (1) maintenance process is reasonable, preferably resolves the common quality defect that steam curing exists, and is littler to the impact of concrete product later strength; (2) economical and practical, do not need the higher boiler of acquisition price and build boiler dedicated room. One cover produerr gas plant only needs 0.56 ten thousand yuan, substitutes one 1 with the quadruplet devicetIt only is about 1/8 of steam boiler that packaged boiler calculates investment; (3) greatly reduce the maintenance cost of concrete product; (4) practical, the heat energy production equipment is simple, and is easy to maintenance, handling safety.
Claims (7)
1, a kind of method and apparatus of the damp-heat air curing concrete goods that circulate, it is characterized in that: this method is to form damp-heat air after sneaking into vapor mixing in the hot-air, be that thermal medium circulates with concrete product by orientation and carries out heat exchange with the damp-heat air, the concrete product temperature raise rapidly reach the purpose of quick-hardening.
2, a kind of method and apparatus of the damp-heat air curing concrete goods that circulate is characterized in that: this device is by fog room, damp-heat air producer, and circulating fan, steam line, flue, chimney meatus draught fan, chimney constitute.
3, according to the damp-heat air in the described circulation damp-heat air of the claim 1 curing concrete article process, it is characterized in that: the damp-heat air medium temperature when normal maintenance in the fog room is 80～90 ℃, and humidity is 50～90%.
4, according to the damp-heat air producer in the described circulation damp-heat air of the claim 2 curing concrete article device; it is characterized in that: the damp-heat air producer is located at the outer and circulating fan the same side of fog room; the damp-heat air producer is by the combustion chamber that is in the same housing; uncovered water evaporation tank and shell-and-tube heat exchanger constitute; the water evaporation tank is centered around around the combustion chamber; protect outer wall of combustion chamber to improve body of heater service life simultaneously producing steam; shell-and-tube heat exchanger is by parallel smoke pipe bundle and front and back smoke box, back smoke box distributor chamber, and lower smoke box and plate washer constitute.
5, according to steam line in the described circulation damp-heat air of the claim 2 curing concrete article device, it is characterized in that: steam line is installed in maintenance locular wall 1/2 eminence, and steam line is provided with several nozzles, and nozzle and locular wall form 30 ° of angles.
6, according to the device of the described circulation damp-heat air of claim 2 curing concrete goods, it is characterized in that: damp-heat air producer body of heater outer setting has the water level meter, is used to control SEA LEVEL VARIATION in the water evaporation tank.
7, according to the circulating fan in the described circulation damp-heat air of the claim 2 curing concrete article device, it is characterized in that: the air-vent of circulating fan is communicated with fog room and damp-heat air producer respectively with exhaust outlet, makes thermal medium form directed circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105826 CN1056646A (en) | 1990-05-18 | 1990-05-18 | The method and apparatus of circulation damp-heat air curing concrete goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105826 CN1056646A (en) | 1990-05-18 | 1990-05-18 | The method and apparatus of circulation damp-heat air curing concrete goods |
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| Publication Number | Publication Date |
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| CN1056646A true CN1056646A (en) | 1991-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 90105826 Pending CN1056646A (en) | 1990-05-18 | 1990-05-18 | The method and apparatus of circulation damp-heat air curing concrete goods |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072197A (en) * | 2014-06-30 | 2014-10-01 | 江苏南瓷绝缘子股份有限公司 | Method for curing insulator cement adhesive |
| CN111251431A (en) * | 2020-03-06 | 2020-06-09 | 浙江省建筑科学设计研究院有限公司 | Maintenance system and production method of prefabricated concrete component for assembly type building |
| CN112196054A (en) * | 2020-09-24 | 2021-01-08 | 北京汇峰建设工程有限责任公司 | Prefabricated gap type drainage ditch, prefabricated mold and construction process of prefabricated mold |
| CN112609593A (en) * | 2020-12-22 | 2021-04-06 | 宁波市产城生态建设集团有限公司 | Bridge supporting pad stone concrete maintenance cover |
-
1990
- 1990-05-18 CN CN 90105826 patent/CN1056646A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072197A (en) * | 2014-06-30 | 2014-10-01 | 江苏南瓷绝缘子股份有限公司 | Method for curing insulator cement adhesive |
| CN111251431A (en) * | 2020-03-06 | 2020-06-09 | 浙江省建筑科学设计研究院有限公司 | Maintenance system and production method of prefabricated concrete component for assembly type building |
| CN111251431B (en) * | 2020-03-06 | 2021-01-29 | 浙江省建筑科学设计研究院有限公司 | Maintenance system and production method of prefabricated concrete component for assembly type building |
| CN112196054A (en) * | 2020-09-24 | 2021-01-08 | 北京汇峰建设工程有限责任公司 | Prefabricated gap type drainage ditch, prefabricated mold and construction process of prefabricated mold |
| CN112196054B (en) * | 2020-09-24 | 2022-02-18 | 北京汇峰建设工程有限责任公司 | Prefabricated gap type drainage ditch, prefabricated mold and construction process of prefabricated mold |
| CN112609593A (en) * | 2020-12-22 | 2021-04-06 | 宁波市产城生态建设集团有限公司 | Bridge supporting pad stone concrete maintenance cover |
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