CN111791352B - Intelligent curing means of concrete pipe pile - Google Patents
Intelligent curing means of concrete pipe pile Download PDFInfo
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- CN111791352B CN111791352B CN202010495109.2A CN202010495109A CN111791352B CN 111791352 B CN111791352 B CN 111791352B CN 202010495109 A CN202010495109 A CN 202010495109A CN 111791352 B CN111791352 B CN 111791352B
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- 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
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Abstract
The invention discloses an intelligent maintenance device for a concrete pipe pile, which relates to the technical field of buildings and comprises a steam-curing pool, a steam generator, a water storage tank, a cover body, a sealing plate, a jacking assembly, a water supplementing mechanism, a backflow mechanism and a proximity switch, wherein the steam-curing pool is used for introducing steam into the steam-curing pool; after the cooling process is finished, the electromagnetic valve II is opened, the circulating pump I is opened, the condensed water in the water storage tank is filtered and then is introduced into the steam generator for secondary evaporation, and therefore the recycling of the condensed water can be achieved.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to an intelligent maintenance device for a concrete pipe pile.
Background
At present, the concrete pipe pile after centrifugal forming adopts twice maintenance process: the first time is normal pressure steam curing and the second time is high pressure steam curing (autoclave curing). The existing normal pressure steam curing process is to place the centrifugally formed pipe piles into a steam curing pool, and the steam curing process can be divided into 4 periods: standing, heating, keeping constant temperature, and cooling. Regarding the preliminary steam curing rule in the production of the prestressed concrete pipe pile, these 4 periods are necessary, and any one period cannot be omitted. The concrete has the advantages of standing and slow temperature rise, has the advantage of improving the development integrity of the concrete, can prevent or reduce the microscopic defects of the concrete, and is favorable for the ultimate strength.
The normal-pressure steam curing process mainly has the following defects: a. at present, the temperature rise and constant temperature control in the steam curing pool is mainly controlled through the steam introduction amount and time, the temperature rise process is generally easy to master, only the flow of the steam and the time required by the steam introduction amount need to be controlled, the time is short, the control of the constant temperature process is difficult, the steam introduction amount at the moment is basically stable, temperature sensors in the pool are generally arranged at two ends of the steam pool, the distribution of the steam temperature in the pool is not uniform, the temperature sensors are generally gradually reduced from top to bottom, the detection result is not accurate, and the constant temperature time cannot be accurately mastered; b. when the temperature is reduced, the cover body at the top of the steam-curing pool is generally directly opened to reduce the temperature, which is good for the situation of high ambient temperature, but for the place with low ambient temperature, the cooling speed is too fast, and the pipe pile shrinks too fast, so that the crack defect is generated; c. the condensed water after the steam condensation can not be recycled, and the heat energy is wasted.
Disclosure of Invention
The invention aims to provide an intelligent maintenance device for a concrete pipe pile, which aims to overcome the defects caused in the prior art.
An intelligent maintenance device for a concrete pipe pile comprises a steam-curing pool, a steam generator and a water storage tank;
a steam outlet of the steam generator is connected to the side surface of the steam-curing pool through a pipeline and provides steam for the steam-curing pool, and a first electromagnetic valve is further arranged on the pipeline between the steam outlet and the steam-curing pool;
the top of the steam-curing pool is covered with a cover body, the top of the cover body is also connected with a sealing plate in a sliding manner through a guide rod, a plurality of heat dissipation holes are formed in the cover body, plugs matched with the heat dissipation holes are arranged on the bottom surface of the sealing plate, guide pillars are further arranged on the bottom surfaces of the left end and the right end of the sealing plate, the guide pillars penetrate through the cover body and are connected to a jacking assembly with a closed lower end in a sliding manner, the bottom of the steam-curing pool is in an inverted cone shape, the lower end of the steam-curing pool is connected with a water storage tank, a liquid level sensor is arranged on the side surface of the water storage tank, the water storage tank is connected to a water supplementing mechanism through a pipeline, the water supplementing mechanism is connected to the water storage tank;
the lower end of the water storage tank is connected to a water inlet II on the side surface of the steam generator through a backflow mechanism so as to backflow condensed water in the water storage tank into the steam generator, the water inlet I on the side surface of the steam generator is connected with a heat exchanger I, the heat exchanger II is installed on the lower portion in the water storage tank, and the heat exchanger II, the circulating pump II and the heat exchanger I form a circulation through pipelines so as to preheat a water body passing through the water inlet I;
and a proximity switch for sensing the position change of the sealing plate is also arranged on the side surface above the sealing plate.
Preferably, the jacking assembly comprises a guide cylinder, a water inlet pipe and a first piston, the upper end opening of the guide cylinder is closed, the guide pillar is connected in the guide cylinder in a sliding manner, an annular step is arranged in the guide cylinder, the first piston is connected in the guide cylinder in a sliding manner and is positioned between the annular step and the guide pillar, and the water inlet pipe is arranged on the side surface of the lower part of the guide cylinder and is positioned below the annular step.
Preferably, moisturizing mechanism includes T venturi tube, check valve, motor, piston two, connecting rod and flywheel, install one respectively at the both ends of T venturi tube the liquid flow direction orientation in check valve and two check valves the water storage tank, the other end sliding connection of T venturi tube has piston two, piston two rotate and are connected to the connecting rod, the connecting rod is connected to the side and the eccentric settings of flywheel, the flywheel is connected to the output of motor again.
Preferably, the backflow mechanism comprises a second electromagnetic valve, a first circulating pump and a purifying device, and the water storage tank, the second electromagnetic valve, the first circulating pump, the purifying device and the steam generator are sequentially connected through pipelines.
Preferably, the upper end of the guide rod is connected with a hanging ring.
In the steam-curing process, the temperature rise process is generally short, the generation amount of condensed water is small in the whole steam-curing process, the generation of the condensed water mainly occurs in the constant-temperature process, in the steam-curing process of the same product, the steam-curing process is basically consistent under the full-load state of the steam-curing pool, so the generation amount of the condensed water is also in a stable level, namely, the introduction of steam can be stopped only after the condensed water generated in the steam-curing process reaches a certain volume, and the temperature reduction step is executed.
The invention has the advantages that:
(1) according to the invention, by utilizing the characteristic of stable amount of condensed water generated in the steam curing process, the condensed water generated in the steam curing process is discharged into the water storage tank, when the water in the water storage tank reaches a certain amount, part of the condensed water enters the jacking assembly and opens the sealing plate to start heat dissipation and cooling, meanwhile, the proximity switch detects that the height position of the sealing plate changes, the electromagnetic valve is closed, and the steam is stopped to be introduced into the steam curing pool; after the cooling process is finished, the electromagnetic valve II is opened, the circulating pump I is opened, the condensed water in the water storage tank is filtered and then is introduced into the steam generator for secondary evaporation, and therefore the recycling of the condensed water can be achieved.
(2) The invention preheats the water body entering the water inlet of the steam generator by means of the first heat exchanger and the second heat exchanger, fully utilizes the heat of the condensed water with the residual heat in the water storage tank, realizes the comprehensive utilization of the heat energy of the condensed water, and is energy-saving and environment-friendly.
(3) All the equipment and electrical elements, such as a circulating pump I, a circulating pump II, an electromagnetic valve and the like, in the invention are connected to the PLC controller uniformly so as to realize intelligent control.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of the water replenishing mechanism of the present invention.
FIG. 4 is an assembly view of the cover and the sealing plate according to the present invention.
Fig. 5 is an exploded view of fig. 4.
Wherein: 1-a steam-curing pool, 2-a steam generator, 21-a first electromagnetic valve, 3-a water storage tank, 4-a pipeline, 5-a cover body, 51-a heat dissipation hole, 52-a guide rod, 6-a sealing plate, 61-a plug, 62-a guide post, 7-a water storage tank, 8-a liquid level sensor, 9-a water supplementing mechanism, 91-a T-shaped pipe, 92-a one-way valve, 93-a motor, 94-a second piston, 95-a connecting rod, 96-a flywheel, 10-a backflow mechanism, 101-a second electromagnetic valve, 102-a first circulating pump, 103-a purifying device, 11-a first water inlet, 12-a second water inlet, 13-a jacking mechanism, 131-a guide cylinder, 132-a water inlet pipe, 133-a first piston, 134-an annular step and 14-a, 15-heat exchanger II, 16-circulating pump II, 17-proximity switch, 18-hanging ring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, an intelligent maintenance device for a concrete pipe pile comprises a steam-curing pool 1, a steam generator 2 and a water storage tank 3;
a steam outlet of the steam generator 2 is connected to the side surface of the steam curing pool 1 through a pipeline 4 and provides steam for the steam curing pool 1, and a first electromagnetic valve 21 is further arranged on the pipeline 4 between the steam outlet and the steam curing pool 1;
the top of the steam-curing pool 1 is covered with a cover body 5, the top of the cover body 5 is also connected with a sealing plate 6 in a sliding way through a guide rod 52, the cover body 5 is provided with a plurality of heat dissipation holes 51, the bottom surface of the sealing plate 6 is provided with plugs 61 matched with the heat dissipation holes 51, the bottom surfaces of the left end and the right end of the sealing plate 6 are also provided with guide posts 62, the guide posts 62 penetrate through the cover body 5 and are connected into a jacking assembly 13 with a closed lower end in a sliding way, the bottom of the steam-curing pool 1 is in an inverted cone shape, the lower end of the steam-curing pool is connected with a water storage tank 7, the side surface of the water storage tank 7 is provided with a liquid, the water supplementing mechanism 9 can pump water in the water storage tank 7 into the water storage tank 3 and can only flow in a single direction, and the upper part of the water storage tank 3 is also connected to the jacking assembly 13 through the pipeline 4 to realize the opening of the sealing plate 6;
the lower end of the water storage tank 3 is connected to a second water inlet 12 on the side surface of the steam generator 2 through a backflow mechanism 10 so as to backflow condensed water in the water storage tank 3 into the steam generator 2, a first heat exchanger 14 is connected to a first water inlet 11 on the side surface of the steam generator 2, a second heat exchanger 15 is installed on the lower portion in the water storage tank 3, and the second heat exchanger 15, a second circulating pump 16 and the first heat exchanger 14 form a circulation through a pipeline 4 so as to preheat a water body passing through the first water inlet 11;
and a proximity switch 17 for sensing the position change of the sealing plate 6 is arranged on the side surface above the sealing plate 6.
In this embodiment, the jacking assembly 13 includes a guide cylinder 131, a water inlet pipe 132 and a first piston 133, the upper end of the guide cylinder 131 is open and the lower end is closed, the guide post 62 is slidably connected in the guide cylinder 131, an annular step 134 is provided in the guide cylinder 131, the first piston 133 is slidably connected in the guide cylinder 131 and located between the annular step 134 and the guide post 62, and the water inlet pipe 132 is provided on the lower side surface of the guide cylinder 131 and located below the annular step 134.
In this embodiment, the water replenishing mechanism 9 includes a T-shaped pipe 91, a one-way valve 92, a motor 93, a second piston 94, a connecting rod 95 and a flywheel 96, wherein one of the one-way valves 92 is respectively installed at two ends of the T-shaped pipe 91, the liquid flowing direction in the two one-way valves 92 faces the water storage tank 3, the second piston 94 is slidably connected to the other end of the T-shaped pipe 91, the second piston 94 is rotatably connected to the connecting rod 95, the connecting rod 95 is connected to the side surface of the flywheel 96 and is eccentrically arranged, and the flywheel 96 is further connected to the output end of the motor 93.
In this embodiment, the backflow mechanism 10 includes a second electromagnetic valve 11, a first circulation pump 102 and a purification device 103, and the water storage tank 3, the second electromagnetic valve 11, the first circulation pump 102, the purification device 103 and the steam generator 2 are sequentially connected through the pipe 4. The backflow mechanism 10 is used for pumping the condensed water in the water storage tank 3 into the steam generator 2 for recycling.
In this embodiment, a hanging ring 18 is connected to an upper end of the guide bar 52, and the lid body 5 is integrally moved by the hanging ring 18.
The working process and principle of the invention are as follows:
firstly, placing concrete pipe piles in a steam-curing pool 1 in sequence by means of a lifting appliance, wherein a filter plate is arranged at the bottom of the steam-curing pool 1, so that condensed water can pass through the filter plate conveniently; then, the cover body 5 is covered on the top of the steam-curing pool 1 by using a lifting appliance for sealing, the guide post 62 on the bottom surface of the sealing plate 6 is inserted into the guide cylinder 131, after the steam-curing pool is statically stopped for a period of time, the first electromagnetic valve 21 is opened, high-temperature steam starts to be introduced into the steam-curing pool 1, the steam introduction amount and the steam introduction time are controlled by the PLC according to a set program, after the temperature rise is finished, the steam introduction amount is stabilized, the steam enters a constant-temperature heat preservation stage, the steam in the steam-curing pool 1 is condensed and then condensed into water, the water falls into the bottom of the steam-curing pool 1 and is collected in the water storage tank 7, the liquid level sensor 8 senses the change of the water level, if the water level is higher than the detection height of the liquid level sensor 8, the PLC controls the motor 93 to operate, the piston is driven to reciprocate by means of a flywheel 96 and a connecting. Because the condensed water also has certain heat, at the moment, the water body entering the water inlet of the steam generator 2 is preheated by means of the first heat exchanger 14, the second heat exchanger 15 and the circulating pump, the heat of the condensed water with the residual heat in the water storage tank 3 is fully utilized, the comprehensive utilization of the heat energy of the condensed water is realized, and the energy conservation and the environmental protection are realized.
When the condensed water in the water storage tank 3 is accumulated to a certain degree, the condensed water enters the guide cylinder 131 through the water inlet pipe 132, when the water pressure is high enough, the piston is pushed to move upwards, the sealing plate 6 is pushed to move upwards, the plug 61 is separated from the cover body 5, the heat in the steam-curing pool 1 is discharged through the heat dissipation holes 51, and the cooling speed of the steam-curing pool 1 is controlled in a reasonable interval; meanwhile, the proximity switch 17 detects that the position of the sealing plate 6 changes (moves upwards), a signal is given to the PLC, the PLC closes the first electromagnetic valve 21, and the steam is stopped from being introduced into the steam-curing pool 1, so that the implementation of the temperature reduction process is ensured.
When the cooling time reaches, the PLC controller controls the second electromagnetic valve 11 to be opened, and the circulating pump sucks the condensed water in the water storage tank 3 into the steam generator 2 for recycling. During pumping, the condensed water is purified by the purifying device 103 to reduce the content of impurities in the water. In this process, the sealing plate 6 is also restored, and the heat radiation hole 51 of the lid 5 is sealed.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (5)
1. An intelligent maintenance device for a concrete pipe pile is characterized by comprising a steam-curing pool (1), a steam generator (2) and a water storage tank (3);
a steam outlet of the steam generator (2) is connected to the side surface of the steaming pool (1) through a pipeline (4) and provides steam for the steaming pool (1), and a first electromagnetic valve (21) is further arranged on the pipeline (4) between the steam outlet and the steaming pool (1);
the top of the steam-curing pool (1) is covered with a cover body (5), the top of the cover body (5) is also connected with a sealing plate (6) in a sliding way through a guide rod (52), a plurality of heat dissipation holes (51) are arranged on the cover body (5), a plug (61) matched with the heat dissipation holes (51) is arranged on the bottom surface of the sealing plate (6), guide posts (62) are further arranged on the bottom surfaces of the left end and the right end of the sealing plate (6), the guide posts (62) penetrate through the cover body (5) and are connected into a jacking assembly (13) with a closed lower end in a sliding way, the bottom of the steam-curing pool (1) is in an inverted cone shape, the lower end of the steam-curing pool is connected with a water storage tank (7), a liquid level sensor (8) is arranged on the side surface of the water storage tank (7), the water storage tank (7) is connected to a water supplementing mechanism (9) through a pipeline (4), the water supplementing mechanism (9) is connected to the water, the upper part of the water storage tank (3) is also connected to the jacking assembly (13) through a pipeline (4) to realize the opening of the sealing plate (6);
the lower end of the water storage tank (3) is connected to a water inlet II (12) on the side surface of the steam generator (2) through a backflow mechanism (10) so as to backflow condensed water in the water storage tank (3) into the steam generator (2), a water inlet I (11) on the side surface of the steam generator (2) is connected with a heat exchanger I (14), a heat exchanger II (15) is installed on the lower portion in the water storage tank (3), and the heat exchanger II (15), a circulating pump II (16) and the heat exchanger I (14) form a circulation through a pipeline (4) so as to preheat a water body passing through the water inlet I (11);
and the side surface above the sealing plate (6) is also provided with an approach switch (17) for sensing the position change of the sealing plate (6).
2. The intelligent maintenance device of concrete pipe pile of claim 1, characterized in that: the jacking assembly (13) comprises a guide cylinder (131), a water inlet pipe (132) and a first piston (133), the lower end of an opening in the upper end of the guide cylinder (131) is closed, a guide post (62) is connected in the guide cylinder (131) in a sliding manner, an annular step (134) is arranged in the guide cylinder (131), the first piston (133) is connected in the guide cylinder (131) in a sliding manner and is located between the annular step (134) and the guide post (62), and the water inlet pipe (132) is arranged on the side face of the lower portion of the guide cylinder (131) and is located below the annular step (134).
3. The intelligent maintenance device of concrete pipe pile of claim 1, characterized in that: moisturizing mechanism (9) are including T venturi tube (91), check valve (92), motor (93), two (94) of piston, connecting rod (95) and flywheel (96), install one respectively at the both ends of T venturi tube (91) check valve (92) and two liquid flow direction orientation in check valve (92) and two check valve (92) water storage tank (3), the other end sliding connection of T venturi tube (91) have two (94) of piston, two (94) of piston rotate and are connected to connecting rod (95), connecting rod (95) are connected to the side and the eccentric settings of flywheel (96), and flywheel (96) reconnection to the output of motor (93).
4. The intelligent maintenance device of concrete pipe pile of claim 1, characterized in that: the backflow mechanism (10) comprises a second electromagnetic valve (101), a first circulating pump (102) and a purifying device (103), and the water storage tank (3), the second electromagnetic valve (101), the first circulating pump (102), the purifying device (103) and the steam generator (2) are connected in sequence through a pipeline (4).
5. The intelligent maintenance device of concrete pipe pile of claim 1, characterized in that: the upper end of the guide rod (52) is connected with a hanging ring (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010495109.2A CN111791352B (en) | 2020-06-03 | 2020-06-03 | Intelligent curing means of concrete pipe pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010495109.2A CN111791352B (en) | 2020-06-03 | 2020-06-03 | Intelligent curing means of concrete pipe pile |
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| CN111791352B true CN111791352B (en) | 2021-06-08 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747784A (en) * | 1980-05-14 | 1982-03-18 | Jiyoo Waahotsupu Jiyunia Birii | Manufacture of concrete product utilizing recycling heat |
| CN204395913U (en) * | 2014-12-31 | 2015-06-17 | 福建省万旗非金属材料有限公司 | A kind of still kettle residual neat recovering system |
| CN105782951A (en) * | 2016-04-28 | 2016-07-20 | 焦作市强耐建材有限公司 | Efficient, energy-saving and environment-friendly condensate water recycling system |
| CN206796156U (en) * | 2017-06-08 | 2017-12-26 | 师宗彩湖建材有限责任公司 | A kind of energy-saving still kettle of energy recycling heat energy |
| CN108214847A (en) * | 2018-03-20 | 2018-06-29 | 盐城市新驰工贸有限公司 | A kind of steam-cured pond of concrete wire pole |
| CN207954244U (en) * | 2018-02-10 | 2018-10-12 | 温州明远新型建材有限公司 | A kind of concrete segment production water circle device |
| CN209504463U (en) * | 2018-09-17 | 2019-10-18 | 荆门市明邦建筑材料有限公司 | One kind being used for autoclave aerated concrete building block high-pressure steaming and cultivating device |
| CN209552047U (en) * | 2018-11-16 | 2019-10-29 | 云南恒昊建设工程检测有限责任公司 | A kind of engineering detecting cement energy-saving curing box |
| CN209903527U (en) * | 2019-01-22 | 2020-01-07 | 贵州长泰源节能建材股份有限公司 | Still kettle heat energy recovery system |
-
2020
- 2020-06-03 CN CN202010495109.2A patent/CN111791352B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747784A (en) * | 1980-05-14 | 1982-03-18 | Jiyoo Waahotsupu Jiyunia Birii | Manufacture of concrete product utilizing recycling heat |
| CN204395913U (en) * | 2014-12-31 | 2015-06-17 | 福建省万旗非金属材料有限公司 | A kind of still kettle residual neat recovering system |
| CN105782951A (en) * | 2016-04-28 | 2016-07-20 | 焦作市强耐建材有限公司 | Efficient, energy-saving and environment-friendly condensate water recycling system |
| CN206796156U (en) * | 2017-06-08 | 2017-12-26 | 师宗彩湖建材有限责任公司 | A kind of energy-saving still kettle of energy recycling heat energy |
| CN207954244U (en) * | 2018-02-10 | 2018-10-12 | 温州明远新型建材有限公司 | A kind of concrete segment production water circle device |
| CN108214847A (en) * | 2018-03-20 | 2018-06-29 | 盐城市新驰工贸有限公司 | A kind of steam-cured pond of concrete wire pole |
| CN209504463U (en) * | 2018-09-17 | 2019-10-18 | 荆门市明邦建筑材料有限公司 | One kind being used for autoclave aerated concrete building block high-pressure steaming and cultivating device |
| CN209552047U (en) * | 2018-11-16 | 2019-10-29 | 云南恒昊建设工程检测有限责任公司 | A kind of engineering detecting cement energy-saving curing box |
| CN209903527U (en) * | 2019-01-22 | 2020-01-07 | 贵州长泰源节能建材股份有限公司 | Still kettle heat energy recovery system |
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