CN117162245B - Reactive powder concrete branch box - Google Patents
Reactive powder concrete branch box Download PDFInfo
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- CN117162245B CN117162245B CN202311312053.2A CN202311312053A CN117162245B CN 117162245 B CN117162245 B CN 117162245B CN 202311312053 A CN202311312053 A CN 202311312053A CN 117162245 B CN117162245 B CN 117162245B
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- 239000000843 powder Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000012423 maintenance Methods 0.000 claims description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000003595 mist Substances 0.000 claims description 25
- 230000009471 action Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 238000009417 prefabrication Methods 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 238000007711 solidification Methods 0.000 description 10
- 230000008023 solidification Effects 0.000 description 10
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- 238000004321 preservation Methods 0.000 description 8
- 210000003437 trachea Anatomy 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention provides an active powder concrete branch box, wherein a supporting frame, a moving table and a curing adjusting unit are arranged in the box, the moving table is arranged on the supporting frame and driven by a moving mechanism to reciprocate in the box, the curing adjusting unit is arranged on the moving table and comprises an exhaust hood, an air inlet hood and a humidifying nozzle which are arranged on the moving table, and in the process that the moving table drives the curing adjusting unit to reciprocate, the temperature in the box is adjusted through the exhaust hood and the air inlet hood, and the humidity in the box is adjusted through the humidifying nozzle, so that the temperature and the humidity in the box meet the requirements of each stage of curing of super-strong powder concrete. The provided active powder concrete branch box dynamically controls the temperature and humidity in the active powder concrete branch box through the curing adjusting unit in a reciprocating movement state, meets the setting requirements of static stop, primary curing and final curing in the curing stage, and is suitable for prefabrication and use in a construction site.
Description
Technical Field
The invention relates to the technical field of branch boxes, in particular to a living body powder concrete branch box.
Background
At present, the distribution network is increasingly powered by underground cables, the underground cable branch boxes realize power cable interconnection and butt joint in a flexible, economical and reliable mode, the simple and convenient connection combination mode is adopted, cable intermediate connectors are replaced in more occasions, investment of equipment and engineering can be effectively saved, and full insulation, full sealing and full shielding are realized in the whole distribution network, so that the fault rate of a circuit is greatly reduced, and the reliability of power supply is improved.
In the construction site, the buried cable branch box prefabricated by the active powder concrete is small in size, is convenient to arrange according to the space of the construction site, does not need a foundation on the ground, greatly reduces the investment of the foundation and saves the construction cost. In a construction site, the buried cable branch box prefabricated by the reactive powder concrete needs to carry out curing stages of static stop, primary curing, final curing and the like, and the curing temperature and humidity in the box need to be strictly controlled in each curing stage. The underground cable branch box is prefabricated on a construction site aiming at a plurality of large-size underground cable branch boxes, not only can be reasonably designed according to the requirements of terrains and use, but also can save the transportation cost, and is a main development trend of site construction.
The existing problems are that due to the limitation of construction site conditions, a concrete prefabrication workshop with large maintenance equipment cannot be provided, manual simple spraying maintenance water operation and fixed support heating pipes are adopted for internal heat preservation, so that labor intensity is high, moreover, for a large branch box with large box space, simple and fixed heating pipes are adopted for heating, gas in the box body is not smooth and can only play a role in heat preservation, heating temperature is uneven, the fixed heating parts easily cause the fact that the adjacent box body part is too high in temperature, the temperatures of other box body parts cannot meet the requirements, particularly, the super-strong powder concrete of the box body can outwards emit large heat in the solidification process, the existing heating and heat preservation mode does not take the factor into consideration, and the temperature required by the maintenance process cannot be continuously changed; meanwhile, the simple spraying can only wet the surface of the box body, mist which is uniformly filled in the space in the whole branch box cannot be formed, humidity cannot meet the humidity regulation requirement of each maintenance stage, humidity and the like cannot meet the temperature and humidity requirement required by the reactive powder concrete, and the current temperature and humidity are mainly independently regulated, so that the regulation effect is affected, the solidification quality of the reactive powder concrete box is affected, and the strength and other performance parameters of the box body are further affected.
Disclosure of Invention
Based on the above, the invention provides the living powder concrete branch box, so as to meet the temperature and humidity change requirements of the maintenance stage of the prefabricated buried cable branch box at the construction site, realize the coordination of temperature and humidity adjustment and improve the solidification quality of the large-volume active powder concrete box body.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the active powder concrete branch box is provided with a box door, and a supporting frame, a movable table and a maintenance adjusting unit are arranged in the box body; the support frame is detachably arranged in the box body of the branch box; the moving platform is arranged on the supporting frame and driven by the moving mechanism to reciprocate in the box body; the maintenance adjusting unit comprises an exhaust hood, an air inlet hood and a humidifying nozzle which are arranged on the mobile station, and the mobile station drives the maintenance adjusting unit to reciprocate in the process of adjusting the temperature in the box body through the exhaust hood and the air inlet hood and adjusting the humidity in the box body through the humidifying nozzle, so that the temperature and the humidity in the box body meet the maintenance requirement of super-strong powder concrete.
Further, the maintenance adjusting unit comprises an exhaust fan, the exhaust hood is arranged on the mobile station, the front end of the exhaust hood is provided with a diffusion-shaped exhaust port extending outwards, the exhaust fan is arranged in the exhaust hood, the rear end of the exhaust hood is connected with a first air pipe extending out of the box body, and the exhaust fan drives air in the box body to flow through the exhaust hood and the first air pipe and then be discharged out of the box body.
Further, maintenance adjusting unit includes the air inlet fan, the air inlet cover sets up on the mobile station and arrange with the exhaust hood dorsad, the front end of air inlet cover is provided with the diffusion form air inlet that stretches out outwards, the air inlet fan is installed in the air inlet cover, the air inlet cover rear end is connected with the second trachea that extends to outside the box, the air outside the air inlet fan drive box gets into the box after second trachea, the air inlet cover.
Further, the maintenance adjusting unit further comprises an air temperature regulator, the air temperature regulator is arranged outside the box body of the branch box, and the second air pipe is connected with the output end of the air temperature regulator.
Further, the maintenance adjusting unit comprises a controller and a temperature sensor, wherein the temperature sensor detects the temperature in the box and transmits the temperature to the controller, the controller is configured to compare the received detected temperature value with a set temperature value, and when the detected temperature value is higher than the set temperature value, the controller controls the air temperature regulator to reduce the output temperature; when the detected temperature value is lower than the set temperature value, the air temperature regulator is controlled to raise the output temperature.
Furthermore, the humidifying nozzles of the maintenance adjusting unit are circumferentially and uniformly distributed in the air inlet cover, the humidifying nozzles are connected with the water mist generator with adjustable discharge capacity through a third air pipe, and water mist sprayed out of the humidifying nozzles is mixed with air entering through the second air pipe through the action of the air inlet fan and is input into the box through the air inlet of the air inlet cover;
further, the maintenance adjusting unit comprises a controller and a humidity sensor, wherein the humidity sensor detects the temperature in the box and transmits the temperature to the controller, the controller is configured to compare the received detected humidity value with a set humidity value, and when the detected humidity value is higher than the set humidity value, the controller controls the water mist generator to reduce the water supply amount; when the detected humidity value is lower than the set humidity value, the water mist generator is controlled to increase the water supply amount.
Further, a plurality of temperature sensors and humidity sensors are arranged in the box body along the length direction array, the temperature sensors and the humidity sensors respectively detect the temperature and the humidity of different positions in the box and transmit the temperature and the humidity to the controller, and when detecting that the temperature and the humidity of partial areas in the box are large relative to the temperature and the humidity of other positions, the travelling speed of the mobile station in the areas is reduced so as to strengthen the temperature and the humidity adjustment of the areas.
Further, the moving mechanism comprises a screw rod which is arranged along the length direction of the box body and is in driving connection with the travelling motor, a threaded hole which is in threaded engagement with the screw rod is formed in the rear end part of the moving table, and the maintenance adjusting unit is arranged in the front end part of the moving table; the moving mechanism further comprises a guide cylinder sleeved outside the screw rod, a curved guide rail is arranged on the guide cylinder along the length direction, the moving table is in sliding fit with the curved guide rail, and the front end part of the moving table extends out of the guide cylinder and is connected with the maintenance adjusting unit.
Further, the curve guide rail comprises a spiral curve guide groove arranged on the periphery of the cylinder body, the middle part of the moving table passes through the spiral curve guide groove and is in sliding fit with the spiral guide groove, and the moving table drives the maintenance adjusting unit to move around the screw rod in the forward moving process of the screw rod under the driving of the travelling motor.
The technical advantages of the mobile powder concrete branch boxes provided are at least embodied in the following aspects:
in the first aspect, an exhaust hood, an air inlet hood and a humidifying nozzle are arranged, and in a maintenance stage, a mobile station drives the exhaust hood, the air inlet hood and the humidifying nozzle to reciprocate in a box body, the air inlet hood inputs air with set temperature into the box body, the exhaust hood discharges the air in the box body, the air with set temperature in the box body flows, the temperature required by maintenance is met, and water mist is sprayed into the box body through the humidifying nozzle, so that the humidity in the box body meets the humidity requirement of each maintenance stage;
in the second aspect, the exhaust hood, the air inlet hood and the humidifying nozzle are arranged on the mobile station, and the exhaust hood, the air inlet hood and the humidifying nozzle are driven to reciprocate in the box body by the mobile station in the curing stage, so that not only can the uniformity of the temperature and the humidity in each part in the box body be improved, but also the dynamic flow of the gas in the box body can be promoted, the speed of temperature and humidity adjustment is improved, the rapid temperature and humidity adjustment in the curing process is met, and the adjustment accuracy is improved;
in the third aspect, the maintenance adjusting unit is used for realizing the consistent adjustment of the temperature and the humidity of the air in the box body, and the air temperature adjustment and the humidity adjustment are not separately carried out, so that the coordination of the temperature and the humidity adjustment in the box body is improved, and the maintenance quality of the box body is improved.
In the fourth aspect, the maintenance adjusting unit is detachably arranged in the branch box of the super-strong powder concrete, and is only required to be simply adjusted and supported by an operator before use and removed after use, so that the maintenance adjusting unit can be repeatedly used and is convenient to flexibly arrange according to the box body space, and the maintenance adjusting unit automatically operates in the whole maintenance stage, so that the labor intensity of the operator is reduced, the influence of human factors of the operator is also reduced, and the improvement of the solidification quality of the super-strong powder concrete is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic illustration of a reactive powder concrete manifold in a cured state;
FIG. 2 is a schematic view of the moving stage after moving the intake hood and exhaust hood;
FIG. 3 is a schematic view of the reactive powder concrete manifold provided with the doors closed;
FIG. 4 is a schematic diagram of a moving mechanism, a moving stage, and an intake hood and exhaust hood connected together;
FIG. 5 is a schematic view of the structure of the moving table, the lead screw and the guide cylinder in an engaged state;
FIG. 6 is a schematic diagram of the disassembled state of FIG. 5;
FIG. 7 is a schematic view of the connection of an intake shroud, an exhaust shroud and a mobile station;
FIG. 8 is a schematic view of the connection of an inlet hood, an inlet fan, and a humidifying nozzle;
FIG. 9 is a schematic diagram of the disassembled state of FIG. 8;
FIG. 10 is a schematic diagram of an exhaust hood and exhaust fan connection;
fig. 11 is a block diagram of a maintenance system of the reactive powder concrete branch box.
The attached drawings are used for identifying and describing:
011-box, 012-box door;
021-a moving table, 022-a travelling motor, 023-a lead screw, 024-a guide cylinder, 025-a spiral curve guide groove and 026-a supporting frame;
031-exhaust hood, 032-exhaust port, 033-first air pipe, 034-exhaust fan;
041-an air inlet hood, 042-an air inlet, 043-a second air pipe, 044-an air inlet fan, 045-an air temperature regulator, 046-a temperature sensor;
051-humidifying nozzle, 052-third air pipe, 053-water mist generator;
06-a controller.
Detailed Description
In the prefabrication process of the reactive powder concrete branch box, curing stages such as static stop, primary curing and final curing are required, and curing temperature and humidity in the box are required to be strictly controlled in each curing stage. Because the conditions of the construction site are limited, a concrete prefabrication workshop with large maintenance equipment cannot be provided, manual simple spraying maintenance water operation and fixed supporting heating pipes are adopted for internal heat preservation, so that the labor intensity is high, heating gas in the box body is not smooth, the heating temperature is uneven, particularly, the super-strong powder concrete of the box body can outwards emit larger heat in the solidification process, the existing heating and heat preservation mode does not take the factor into consideration, and the continuous change of the temperature required by the maintenance process cannot be realized; meanwhile, the simple spraying can only wet the surface of the box body, mist which uniformly fills the space in the whole branch box cannot be formed, and the humidity cannot meet the humidity regulation requirement of each maintenance stage, so that the solidification quality of the reactive powder concrete box body is affected.
Therefore, the invention provides an active powder concrete branch box, a supporting frame, a moving table and a curing adjusting unit are arranged in the box, the moving table is arranged on the supporting frame and driven by a moving mechanism to reciprocate in the box, the curing adjusting unit is arranged on the moving table and comprises an exhaust hood, an air inlet hood and a humidifying nozzle which are arranged on the moving table, and in the process of the moving table driving the curing adjusting unit to reciprocate, the temperature in the box is adjusted through the exhaust hood and the air inlet hood, and the humidity in the box is adjusted through the humidifying nozzle, so that the temperature and the humidity in the box meet the requirements of each stage of curing of super-strong powder concrete, the setting range of static stop, initial curing and final curing of the curing stage is reached, and the prefabrication effect of the active powder concrete box is improved.
The present invention will be described more fully hereinafter in order to facilitate an understanding of the present invention, and preferred embodiments of the present invention are set forth. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1, 2 and 3, in the embodiment of the reactive powder concrete branch box provided by the invention, a box body 011 of the branch box is provided with a box door 012, and a supporting frame 026, a mobile station 021 and a maintenance adjusting unit are arranged in the box body 011; wherein, in the solidification and maintenance process of the reactive powder concrete box body, the box door 012 adopts a light door with heat preservation and protection functions, such as a door made of a polyester foam board material, and in the later use process, the metal door used for a long time is replaced according to specific use requirements. In the curing process, the box body is sleeved with a polyester foam jacket so as to achieve a good heat preservation effect.
The support frame 026 is detachably arranged in a box body 011 of the branch box; the mobile station 021 is arranged on the supporting frame 026 and driven by a moving mechanism to reciprocate in the box 011; the temperature adjusting component is provided with a mobile station 021, and in the process that the mobile station 021 drives the curing adjusting unit to reciprocate, the curing adjusting unit dynamically adjusts the temperature and the humidity in the box 011, so that the temperature and the humidity in the box meet the curing requirement of super-strong powder concrete. The movable powder concrete branch box is detachably mounted in the branch box through the support frame, and is convenient to flexibly arrange according to the box space, and the movable powder concrete branch box can be repeatedly used only by simply adjusting and supporting by an operator before use and removing the movable powder concrete branch box after use.
In the concrete curing stage, the mobile station drives the exhaust hood, the air inlet hood and the humidifying nozzle to reciprocate in the box, the air inlet hood inputs air with set temperature into the box, the exhaust hood discharges air in the box, air with set temperature flows in the box, the required temperature of curing is met, and water mist is sprayed into the box through the humidifying nozzle, so that the humidity in the box meets the humidity requirements of each curing stage, the mobile station drives the exhaust hood, the air inlet hood and the humidifying nozzle to reciprocate in the box in the curing stage, the uniformity of temperature and humidity in the box everywhere can be improved, and the dynamic flow of gas in the box can be promoted, so that the speed of temperature and humidity adjustment is improved, the quick progress of temperature and humidity adjustment in the curing process is met, and the adjustment accuracy is improved.
In the whole curing stage, the curing adjusting unit automatically operates, and the temperature and the humidity in the box body are automatically adjusted according to a set program, so that the temperature and the humidity in the box body are strictly carried out according to each technological parameter of the curing process, no interference operation is required by operators, the influence of human factors of the operators is reduced, the labor intensity of the operators is also reduced, and the improvement of the solidification quality of the super-strong powder concrete is facilitated.
As shown in fig. 4, in some embodiments, the moving mechanism includes a screw 023 disposed along a length direction of the case 011 and drivingly connected to the travel motor 022, a rear end portion of the moving table 021 is provided with a screw hole threadedly engaged with the screw 023, and the maintenance adjusting unit is provided at a front end portion of the moving table 021; the moving mechanism further comprises a guide cylinder 024 sleeved outside the screw rod 023, the guide cylinder 024 is provided with a curve guide rail along the length direction, the moving table 021 is in sliding fit with the curve guide rail, and the front end part of the moving table 021 extends out of the guide cylinder 024 and is connected with the maintenance adjusting unit. Through the structure setting of curve guide rail, motor drive lead screw rotates, drive the mobile station along lead screw axial motion in-process, owing to curve guide rail's guide effect, the mobile station is radial swing along curve guide rail in the box, drive exhaust hood installed on the mobile station, the inlet hood produces axial motion and radial wobbling compound curve motion with humidification nozzle, thereby and non-simple rectilinear motion makes the exhaust hood outwards suck the discharge of incasement air, the air that the inlet hood carried to the incasement and the water smoke that humidification nozzle incasement carried all go on dynamically, be favorable to the stirring to incasement air, make incasement air keep dynamic rather than static, avoid partial incasement air to be detained, be favorable to incasement temperature, humidity evenly distributed and dynamic adjustment, with accurate adaptation maintenance stage's incasement temperature and humidity adjustment.
As shown in fig. 4, 5 and 6, in some embodiments, the screw is centrally disposed vertically within the box of the branch box, the curved guide rail includes a spiral curved guide groove 025 provided at the outer periphery of the barrel, and the middle portion of the mobile table 021 is penetrated by the spiral curved guide groove 025 and slidingly engaged with the spiral guide groove. In a specific implementation, the pitch of the spiral curve guide groove 025 is larger than that of the external thread of the screw rod, the movable table 021 drives the maintenance adjusting unit to move around the screw rod 023 in the forward moving process of the screw rod 023 under the drive of the travelling motor 022, the exhaust hood, the air inlet hood and the humidifying nozzle on the movable table form vertical spiral movement, so that the inner surface of the box body on each side around the box body is subjected to the effect of the exhaust hood on outward suction and discharge of air in the box body, air conveyed into the box by the air inlet hood and water mist conveyed into the humidifying nozzle box, the air with the set temperature fed by the air inlet hood is scattered into the box body in the spiral movement, the air in the box body is discharged in the spiral movement, and the water mist fed by the humidifying nozzle is scattered into the box body along the spiral movement, thereby improving the uniformity of the air temperature and humidity in the box body, playing a role of stirring the temperature field and the humidity field of the air in the box body, preventing the non-uniformity phenomenon of the temperature field and the humidity field, and effectively improving the dynamic change adjustment speed of the temperature field and the humidity field, and meeting the set requirements of the dynamic change adjustment speed of the process field.
In other embodiments, the curved guide rail comprises a sinusoidal guide groove arranged at one side of the cylinder, the middle part of the moving platform is penetrated by the sinusoidal guide groove and is in sliding fit with the spiral guide groove, the track function of the sinusoidal guide groove is y=asin (ωx+phi), wherein sin is a sinusoidal symbol, x is a value along the length direction of the cylinder, y is a value along the width direction of the cylinder, and a is the maximum fluctuation amplitude of the curved guide groove in the width direction of the cylinder; phase when Φ is x=0; omega is the angular velocity, controlling the sine period. In the maintenance process of the branch box, the screw rod is arranged on one side close to the box door, the sinusoidal guide groove is opposite to the box door, the movable table drives the maintenance adjusting unit to reciprocate along the screw rod in the forward moving process of the screw rod relative to the screw rod in the vertical moving direction, so that the exhaust hood, the air inlet hood and the humidifying nozzle arranged on the movable table form vertical swinging motion, the inner surfaces of the box bodies except the box door are subjected to outward suction and discharge of air in the box body by the exhaust hood, the air conveyed into the box by the air inlet hood and the uniform generation of water mist conveyed in the humidifying nozzle box, the temperature field and the humidity field of the air in the box body are stirred, the condition of the box body in which maintenance is not required is reduced, the box door is opened to check the condition in the box body in the maintenance process, the exhaust, the air inlet and the humidifying process are not required to be stopped in the process, the continuity of the process is maintained, and the maintenance quality of the box body is convenient to detect.
As shown in fig. 7, 8, 9 and 10, in some embodiments, the maintenance adjusting unit includes an exhaust hood 031 and an exhaust fan 034, the exhaust hood 031 is mounted on the mobile station 021, and the front end is provided with a diffusion-shaped exhaust port 032 extending outwards, the exhaust fan 034 is mounted in the exhaust hood 031, the rear end of the exhaust hood 031 is connected with a first air pipe 033 extending out of the box 011, and the exhaust fan 034 drives air in the box 011 to flow through the exhaust hood 031 and the first air pipe 033 and then to be discharged out of the box 011. In an embodiment, the maintenance adjusting unit includes an air inlet hood 041 and an air inlet fan 044, the air inlet hood 041 is disposed on the mobile station 021 and is arranged opposite to the exhaust hood 031, a diffusion air inlet 042 extending outwards is disposed at the front end of the air inlet hood 041, the air inlet fan 044 is installed in the air inlet hood 041, a second air pipe 043 extending out of the box 011 is connected to the rear end of the air inlet hood 041, and the air inlet fan 044 drives air out of the box 011 to flow through the second air pipe 043 and the air inlet hood 041 and then enter the box 011. Through the back-to-back setting of air inlet cover and exhaust hood, in the mobile station along helical movement in-process, not only keep the atress balance and the stability of mobile station, moreover, can form the heliciform direction of admitting air and exhaust and carry, and unordered admitting air and exhaust, thereby make the air that gets into can evenly distribute in the box, also can realize even outwards extraction exhaust air, improve the air uniform mixing degree, and the front end big opening setting of diffusion form gas vent, diffusion form air inlet, thereby keep the interior temperature field of box and humidity field's uniformity, improve box maintenance quality, make box everywhere intensity keep the uniformity.
In some embodiments, the mobile station is provided with a ventilation motor, a motor shaft of the ventilation motor extends out bidirectionally, one end of the motor shaft is in driving connection with an exhaust fan through a first transmission part, the other end of the motor shaft is in driving connection with an air suction fan through a second transmission part, the transmission ratio of the first transmission part and the second transmission part is the same, for example, a synchronous belt, a chain and other transmission mechanisms, the rotation directions of the exhaust fan and the fan blades of the air suction fan are opposite, and the quantity of air delivered by the exhaust fan and the air suction fan is the same at the same rotation speed. The air pressure balance in the box body can be effectively maintained, and the temperature and the humidity in the box body are prevented from being exchanged with the outside through the box door.
As shown in fig. 8 and 9, the maintenance adjusting unit comprises humidifying nozzles 051 which are circumferentially and uniformly distributed in the air inlet hood 041, the humidifying nozzles 051 are connected with a water mist generator 053 with adjustable discharge capacity through a third air pipe 052, and water mist sprayed by the humidifying nozzles 051 is mixed with air entering through the second air pipe 043 through the action of an air inlet fan 044 and is input into a tank through an air inlet 042 of the air inlet hood 041. Under the high-speed rotation of the air inlet fan, the air with the outwards set temperature enters the box body through the air inlet cover, the humidifying nozzle sprays water mist into the air inlet cover in the process that the air with the set temperature flows through the air inlet cover, and due to the driving effect of the high-speed air in the air inlet cover, the water mist can be more fully mixed with the air flowing through the air inlet cover before entering the box body, the uniformity of the air and the water mist entering the box body is improved, a uniform water mist-containing air state is formed, and the uniformity of maintenance in the box body is improved. The structure realizes the consistent regulation of the air temperature and the humidity in the box body, but not the separate regulation of the air temperature and the humidity, thereby being beneficial to improving the coordination of the regulation of the temperature and the humidity in the box body and improving the maintenance quality of the box body.
In an embodiment, the box is provided with chamber door and heat dissipation window, the detachable filter screen is installed to the heat dissipation window, is provided with the bolt spare of locking filter screen on the box, first trachea, second trachea and third trachea are flexible bellows, and first trachea and second trachea are loosely laid on the support frame.
As shown in fig. 11, the maintenance adjusting unit further includes an air temperature regulator 045, the air temperature regulator 045 is disposed outside the box 011 of the branch box, and the second air pipe 043 is connected to an output end of the air temperature regulator 045. Further, the maintenance adjusting unit comprises a controller 06 and a temperature sensor 046, wherein the temperature sensor 046 detects the temperature in the box and transmits the temperature to the controller 06, the controller 06 is configured to compare the received detected temperature value with a set temperature value, and when the detected temperature value is higher than the set temperature value, the controller 06 controls the air temperature regulator 045 to reduce the output temperature; when the detected temperature value is lower than the set temperature value, the air temperature regulator 045 is controlled to raise the output temperature. Through temperature sensor's setting, realize the temperature dynamic adjustment of air temperature regulator, can realize automatically that the temperature regulation and control in the box reaches the within range of settlement, improve temperature regulation and control precision, can effectively improve maintenance quality to maintenance operating personnel's intensity of labour has been reduced. Further, in the embodiment, the second air pipe is provided with an air inlet flow control valve for controlling the air inflow, the controller is connected with the air inlet flow control valve, when the range of temperature regulation in the box is large, the opening degree of the air inlet flow control valve is increased, so that the air inlet flow of the set temperature is increased, the regulation speed is increased, when the range of temperature regulation in the box is small, the opening pair of the air inlet flow control valve is reduced, so that the air inlet flow of the set temperature is reduced, the load of the air temperature regulator is lightened, the consumption of energy is reduced, and the energy saving and consumption reduction effects in the maintenance process are achieved. In the specific implementation process, the air temperature regulator is an air temperature regulating device commonly used in industry, and will not be described again.
As shown in fig. 1, 2 and 11, the maintenance adjusting unit includes a controller 06 and a humidity sensor which detects the temperature in the tank and transmits to the controller 06, the controller 06 is configured to compare the received detected humidity value with a set humidity value, and when the detected humidity value is higher than the set humidity value, control the water mist generator 053 to reduce the water supply amount; when the detected humidity value is lower than the set humidity value, the water mist generator 053 is controlled to raise the water supply amount. Through humidity sensor's setting, realize the humidity dynamic adjustment of air humidity regulator, can realize automatically that humidity control in the box reaches the within range of settlement, improve humidity control precision, can effectively improve maintenance quality to maintenance operating personnel's intensity of labour has been reduced.
As shown in fig. 1, 2 and 11, in some embodiments, a plurality of temperature sensors 046 and humidity sensors are disposed in the case 011 along the longitudinal direction, and the temperature sensors 046 and the humidity sensors respectively detect the temperature and humidity at different positions in the case and transmit them to the controller 06, and when detecting that the temperature and humidity of a partial region in the case have a large difference from those of other positions, the traveling speed of the mobile station 021 in the region is reduced to enhance the temperature and humidity adjustment of the region.
The working process of the movable powder concrete branch box is as follows: after the prefabrication of the super-strong powder concrete box body is completed on the using site of the branch box, the box body reaches the preset strength through initial setting, the template is removed, then the box door 012 is installed, in specific implementation, the used box door 012 is made of light materials with heat preservation effect, a metal door filled with a polyester foam board is filled, then a screw rod is vertically supported in the middle of the box body in the branch box through a supporting frame 026, and in the reciprocating motion process of a moving table, the curing process is realized specifically as follows: (1) A standing stage, namely, standing the inside of the formed active powder concrete branch box for more than 6 hours in an environment with humidity being more than 60 percent and temperature being more than 18 ℃; (2) The primary curing stage, controlling the internal temperature of the reactive powder concrete branch box, ensuring that the difference between the internal temperature and the ambient temperature is kept within 20 ℃, and removing the mould; (3) In the final raising stage, three steps of heating, constant temperature and cooling are needed to be implemented on the reactive powder concrete branch box, and certainly, the temperature of the concrete cover plate in each step can not be increased by 12 ℃ per hour, the constant temperature is mainly controlled at 75 ℃, and the cooling speed can not be increased by 15 ℃ per hour.
Based on the embodiments, in the curing stage, the moving platform drives the exhaust hood, the air inlet hood and the humidifying nozzle to reciprocate in the box body, the air inlet hood inputs air with set temperature into the box body, the air outlet hood discharges the air in the box body, the air with set temperature in the box body flows, the temperature required by curing is met, and water mist is sprayed into the box body through the humidifying nozzle, so that the humidity in the box body meets the humidity requirement of each stage of curing; the uniformity of temperature and humidity in the box body can be improved, and the dynamic flow of gas in the box body can be promoted, so that the speed of temperature and humidity adjustment is improved, the rapid temperature and humidity adjustment in the curing process is met, and the adjustment accuracy is improved; the method realizes the consistent adjustment of the air temperature and the humidity in the box body, automatically operates the curing adjusting unit in the whole curing stage, reduces the labor intensity of operators, reduces the influence of human factors of the operators, is beneficial to the improvement of the solidification quality of super-strong powder concrete, can meet the temperature and humidity change requirements of the curing stage of the buried cable branch box prefabricated in the construction site, and improves the solidification quality of the large-volume active powder concrete box body.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (2)
1. An active powder concrete branch box which is characterized in that:
the box body (011) of the branch box is provided with a box door (012), and a supporting frame (026), a mobile station (021) and a maintenance adjusting unit are arranged in the box body (011);
the supporting frame (026) is detachably arranged in a box body (011) of the branch box;
the mobile station (021) is arranged on the supporting frame (026) and driven by the moving mechanism to reciprocate in the box body (011);
the maintenance adjusting unit comprises an exhaust hood (031), an air inlet hood (041) and a humidifying nozzle (051) which are arranged on the mobile station (021), wherein the temperature in the box body (011) is adjusted through the exhaust hood (031) and the air inlet hood (041) and the humidity in the box body (011) is adjusted through the humidifying nozzle (051) in the process that the mobile station (021) drives the maintenance adjusting unit to reciprocate;
the maintenance adjusting unit comprises an exhaust fan (034), the exhaust hood (031) is arranged on the mobile station (021) and the front end of the exhaust hood is provided with a diffusion-shaped exhaust port (032) extending outwards, the exhaust fan (034) is arranged in the exhaust hood (031), the rear end of the exhaust hood (031) is connected with a first air pipe (033) extending out of the box body (011), and the exhaust fan (034) drives air in the box body (011) to flow through the exhaust hood (031) and the first air pipe (033) and then is discharged out of the box body (011);
the maintenance adjusting unit comprises an air inlet fan (044), the air inlet cover (041) is arranged on the mobile station (021) and is arranged opposite to the exhaust cover (031), a diffusion-shaped air inlet (042) extending outwards is formed in the front end of the air inlet cover (041), the air inlet fan (044) is arranged in the air inlet cover (041), a second air pipe (043) extending out of the box body (011) is connected to the rear end of the air inlet cover (041), and the air inlet fan (044) drives air out of the box body (011) to flow through the second air pipe (043) and the air inlet cover (041) and then enter the box body (011);
the maintenance adjusting unit further comprises an air temperature regulator (045), the air temperature regulator (045) is arranged outside the box body (011) of the branch box, and the second air pipe (043) is connected with the output end of the air temperature regulator (045);
the humidifying nozzles (051) of the maintenance adjusting unit are circumferentially and uniformly distributed in the air inlet cover (041), the humidifying nozzles (051) are connected with the water mist generator (053) with adjustable discharge capacity through a third air pipe (052), and water mist sprayed out of the humidifying nozzles (051) is mixed with air entering through the second air pipe (043) through the action of the air inlet fan (044) and is input into the box through the air inlet (042) of the air inlet cover (041);
the maintenance adjusting unit comprises a controller (06) and a humidity sensor, wherein the humidity sensor detects the temperature in the box and transmits the temperature to the controller (06), the controller (06) is configured to compare the received detected humidity value with a set humidity value, and when the detected humidity value is higher than the set humidity value, the water mist generator (053) is controlled to reduce the water supply amount; when the detected humidity value is lower than the set humidity value, controlling the water mist generator (053) to increase the water supply amount;
the moving mechanism comprises a screw rod (023) which is arranged along the length direction of the box body (011) and is in driving connection with a travelling motor (022), a threaded hole which is in threaded engagement with the screw rod (023) is formed in the rear end part of the moving table (021), and the maintenance adjusting unit is arranged in the front end part of the moving table (021); the moving mechanism further comprises a guide cylinder (024) sleeved outside the screw rod (023), a curve guide rail is arranged on the guide cylinder (024) along the length direction, the moving table (021) is in sliding fit with the curve guide rail, and the front end part of the moving table (021) extends out of the guide cylinder (024) and is connected with the maintenance adjusting unit;
the curve guide rail comprises a sinusoidal guide groove arranged on one side of the cylinder, the middle part of the mobile station passes through the sinusoidal guide groove and is in sliding fit with the spiral guide groove, the track function of the sinusoidal guide groove is y=asin (ωx+phi), wherein sin is a sinusoidal symbol, x is a numerical value along the length direction of the cylinder, and y is a numerical value along the width direction of the cylinder;
the curve guide rail comprises a spiral curve guide groove (025) arranged on the cylinder body, and the middle part of the moving table (021) is in sliding fit with the spiral guide groove.
2. The reactive powder concrete manifold of claim 1, wherein: the temperature and humidity sensor is characterized in that a plurality of temperature sensors (046) and humidity sensors are arranged in the box body (011) along the length direction array, the temperature sensors (046) and the humidity sensors respectively detect the temperature and the humidity of different positions in the box and transmit the temperature and the humidity to the controller (06), and when the temperature and the humidity of partial areas in the box are detected to be larger relative to the temperature and the humidity of other positions, the advancing speed of the mobile station (021) in the areas is reduced so as to strengthen the temperature and the humidity adjustment of the areas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311312053.2A CN117162245B (en) | 2023-10-11 | 2023-10-11 | Reactive powder concrete branch box |
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| CN202311312053.2A CN117162245B (en) | 2023-10-11 | 2023-10-11 | Reactive powder concrete branch box |
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| CN117162245B true CN117162245B (en) | 2024-03-19 |
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| CN117162245A (en) | 2023-12-05 |
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