Background
With the rapid development of socioeconomic, the number of highway tunnels, railway tunnels, urban rail transit, municipal drainage and pollution discharge construction projects in China is increasing, and the underground tunnel construction projects need to be matched with perfect drainage systems, for example, as shown in fig. 1, HDPE double-wall corrugated pipes are used as drainage blind pipes to construct underground drainage pipe networks. However, the situation that the tunnel passes through the karst area is more and more common at present, and the problem of crystallization blockage of a drainage system is obvious in the process of building and later-stage operation of the tunnel in the karst area, especially a transverse drainage blind pipe.
Aiming at the problem that a tunnel drainage blind pipe is easy to crystallize and block, the company develops a two-component super-hydrophobic coating at present, and the two-component super-hydrophobic coating is sprayed on the inner wall of the drainage blind pipe, so that the stain resistance of the inner wall of the drainage blind pipe can be improved, and the deposition of crystals is avoided. However, the existing pipeline inner wall spraying equipment has the following defects: (1) Is not suitable for high-viscosity coatings, such as two-component super-hydrophobic coatings developed by the company; (2) The method can not be suitable for drainage blind pipes with different inner diameters, and different types of spraying equipment are required to be equipped for the drainage blind pipes with different inner diameters; and (3) the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent crystallization drainage blind pipe inner wall spraying construction equipment, it has solved the drainage blind pipe that is not suitable for high viscosity coating, can't be applicable to different internal diameters, the inconvenient scheduling problem of operation that present pipeline inner wall spraying equipment exists.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an anti-crystallization water drainage blind pipe inner wall spraying construction device comprises a pneumatic pressure barrel, a spray gun and a sprayer, wherein the pneumatic pressure barrel is provided with an air inlet valve and a pneumatic stirrer, the spray gun is connected with the pneumatic pressure barrel through a material pipe, and the sprayer is connected with the spray gun through a material pipe;
the sprayer comprises a central shell, a pneumatic motor is arranged at the front end of the central shell, an atomizing disc is arranged at the output end of the pneumatic motor, at least two groups of supporting mechanisms are arranged on the outer wall of the central shell, each group of supporting mechanisms comprises at least three supporting pieces which are uniformly distributed, each supporting piece comprises a fixed seat and a rotating seat which are arranged on the outer wall of the central shell, a swing rod which is rotatably arranged on the rotating seat, a roller arranged at the tail end of the swing rod and a tension spring connected between the fixed seat and the swing rod, the tension spring is pulled when the swing rod rotates, and the axis of the central shell is positioned in the movable surface of any swing rod and the tension spring;
and the air inlet valve, the pneumatic stirrer and the pneumatic motor are all connected with an air source.
The improved structure is characterized in that the swing rod is formed by movably sleeving a hollow rod and a solid rod, a bolt is arranged on the hollow rod, a plurality of jacks are formed in the solid rod, and the bolt is inserted into one of the jacks to realize the length fixation of the hollow rod and the solid rod.
The further improvement lies in that one or more rollers are provided with a driving motor for driving the rollers to rotate.
The beneficial effects of the utility model reside in that: the spraying construction equipment can adapt to the paint with high viscosity characteristic, provides good atomization effect, reduces sagging phenomenon, and has the advantages of convenient operation, good adjustability, suitability for drainage blind pipes with different inner diameters and the like.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Referring to fig. 2 to 4, the anti-crystallization construction equipment for spraying the inner wall of the drainage blind pipe comprises a pneumatic pressure barrel 1, a spray gun 2 and a sprayer 3, wherein the pneumatic pressure barrel 1 is used for mixing and outputting coating materials, an air inlet valve 11 and a pneumatic stirrer 12 are arranged on the pneumatic pressure barrel 1, the spray gun 2 is connected with the pneumatic pressure barrel 1 through a material pipe, and the sprayer 3 is connected with the spray gun 2 through a material pipe.
In this equipment, pneumatic pressure bucket 1, spray gun 2 all adopt prior art, for example: the pneumatic pressure barrel 1 can adopt an FZ-10L stirring type pressure barrel, the volume of the pneumatic pressure barrel is 10L, the air inlet pressure is less than or equal to 0.3MPa, and the pneumatic pressure barrel has the advantages of corrosion resistance, adjustable air inlet pressure, high automatic pressure relief safety, convenience in movement and the like. The spray gun 2 can be controlled by an LX-1S (manual) switch which can be used for manually controlling a paint switch and adjusting the spraying flow.
And in order to make sprayer 3 can adapt to the coating of high viscosity characteristic to provide good atomization effect, the utility model discloses structural improvement has been carried out to it, specifically is: the sprayer 3 comprises a central shell 31, a pneumatic motor 32 is arranged at the front end of the central shell 31, the power of the pneumatic motor 32 is strong, an atomizing disc 33 is arranged at the output end of the pneumatic motor 32, and when the atomizing disc 33 rotates at a high degree, the coating can be finely atomized; the outer wall of the central shell 31 is provided with at least two groups of supporting mechanisms, each group of supporting mechanisms comprises at least three supporting pieces which are uniformly distributed, and each supporting piece comprises a fixed seat 34 and a rotating seat 35 which are arranged on the outer wall of the central shell 31, a swinging rod 36 which is rotatably arranged on the rotating seat 35, a roller 37 which is arranged at the tail end of the swinging rod 36, and a tension spring 38 which is connected between the fixed seat 34 and the swinging rod 36. The sprayer 3 can adapt to drainage blind pipes with different inner diameters, after the sprayer 3 is fed into the drainage blind pipes, the swing rods 36 synchronously rotate backwards under the blocking of the pipe walls, the tension springs 38 are pulled, the axis of the central shell 31 is located in the movable surface of any one of the swing rods 36 and the tension springs 38, the tension springs 38 provide outwards expanded elastic force for the swing rods 36, finally, the rollers 37 are attached to the inner walls of the pipes and freely roll, and meanwhile, the atomizing disc 33 is automatically located at the central position in the drainage blind pipes.
In addition, the air inlet valve 11, the pneumatic stirrer 12 and the pneumatic motor 32 of the device are connected with an air source (such as an air compressor).
The utility model discloses in, in order to further improve the applicable drainage cecum pipe diameter scope of sprayer 3, set up pendulum rod 36 and cup joint the constitution by hollow rod 361 and solid pole 362 activity, and be equipped with bolt 363 on hollow rod 361, seted up a plurality ofly on solid pole 362 and be used for jack 364, bolt 363 inserts in one of them jack 364, realizes that hollow rod 361 and solid pole 362's length is fixed. Therefore, the length of the swing rod 36 is adjustable, namely the supporting radius of the supporting mechanism is adjustable, when the water drainage device is used, the length of the swing rod 36 can be roughly adjusted, and then the swing rod 36 is stably matched with a drainage blind pipe through swinging.
The utility model discloses in, can artifical at the uniform velocity stimulate sprayer 3 and remove in drainage blind pipe is inside, also can be equipped with driving motor 39 on one of them or more gyro wheel 37 for driving gyro wheel 37 rotates, makes sprayer 3 automatic along the inside removal of drainage blind pipe, and it is more convenient to operate like this, and the spraying homogeneity is better.
The use flow of the construction equipment for spraying the inner wall of the drainage blind pipe comprises the following steps: firstly, adding the components of the coating into a pneumatic pressure barrel 1, and uniformly stirring and mixing the components through a pneumatic stirrer 11 to obtain a spraying liquid; then the sprayer 3 is sent into the interior of the drainage blind pipe to be sprayed, the swing rods 36 in the supporting pieces synchronously rotate backwards to automatically adjust the supporting radius, so that all the rollers 37 are attached to the inner wall of the drainage blind pipe, and meanwhile, the atomizing disc 33 is positioned at the central position in the drainage blind pipe; then, all air sources are connected, the spray gun 2 is opened, the spraying liquid is pneumatically conveyed into the atomizing disc 33, meanwhile, the pneumatic motor 32 drives the atomizing disc 33 to rotate at a high speed, the spraying liquid rotates at a high speed, centrifugally atomizes and sprays to the periphery, and at the moment, the sprayer 3 moves at a constant speed along the inner wall of the drainage blind pipe, so that the spraying construction of the inner wall of the drainage blind pipe is realized; after construction, naturally curing for 6-10h at normal temperature to cover the inner wall surface of the drainage blind pipe with a coating.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.