A kind of building construction energy reducer for drainage system
Technical field
The present invention relates to a kind of building construction energy reducer for drainage system, belong to architectural drainage system field.
Background technique
The tubing be made up for main raw material of rigid polyvinyl chloride (U-PVC), there is lightweight, corrosion-resistant, the advantage such as resistance to water-flow is little, it is convenient to install, cost is low, energy saving, therefore, the drainage system of a lot of tall building generally adopts rigid polyvinyl chloride soil stack at present.But because tall building story height, drop greatly, cause, current falling speed is fast, kinetic energy large, and to soil stack, the soil stack impact force particularly bottom building is large, easily causes pipe deformations or breaks.Therefore, in as installed process, need setting on soil stack to subtract energy (or energy dissipating) device, its Main Function is: alleviate the water flow impact pressure that soil stack is subject to, and reduces the impaired possibility of pipeline; Reduce in-pipe flow speed, prevent vibrations and noise.
The comparatively simple second word curved (having multiple 45o bend-head combination to form) of structure can be generally adopted by device at present for subtracting of soil stack, such subtract can the maximum shortcoming of device be subtract can weak effect, working life short, complex installation process, and occupy larger space.
Can compared with device with subtracting of above-mentioned simple type, existing market also has comparatively that subtracting of specialty can device, " a kind of architectural drainage system sinker " as described in Patent publication No CN101846225A, sinker described in this invention is primarily characterized in that, two arc current baffle plates set up and down are provided with at the inner chamber of sinker main body, for changing the direction of a stream of water, consuming flow energy (i.e. potential energy) with part, reaching the effect of deceleration.But such subtracts and can there is following several major defect by device:
1. the high speed flowing water fallen from main riser only has the water yield of 1/2 through current baffle plate above, form the moisture film baffling of recoil, and the 1/2 remaining water yield needs by being upset mixing by the moisture film baffling that baffle plate recoils, its cushioning effect is not obvious, and the design of curved baffle asymmetry, in Long-Time Service process, energy dissipator is easily made to be out of shape because of the impact of current;
2. the main body of sinker and cover plate adopt glue adhesion, and when blocking occurs sinker, the lid can only opening inspection socket carries out clear and coherent, but inspection socket in this invention is very little, when obstruction is larger, cannot clear up;
3. sinker adopts coated soft rubber in main body inner wall, to absorb the raw impact energy of back-flushing miscarriage.But because in actual use, the probability that recoil current attack main body inner wall is little, therefore many times coated soft rubber can not consume the kinetic energy of current in main body inner wall; Even if when current spring back over inwall, its impact force significantly reduces, and the impact energy that body interior soft rubber consumes is also very little, but overweight soft rubber will certainly increase weight and the cost of main body, brings certain burden to soil stack.
In view of this, the present inventor studies this on the basis of existing technology, and develop a kind of building construction energy reducer for drainage system specially, this case produces thus.
Summary of the invention
The object of this invention is to provide that a kind of water flow buffer successful, noise-proofing are effective, easy accessibility, the lightweight and building construction energy reducer for drainage system of long service life.
To achieve these goals, solution of the present invention is:
A kind of building construction energy reducer for drainage system, comprise main body, sealing cover and be arranged on the first cushion plate, the second cushion plate and the supporting post etc. in main body, wherein, supporting post one end is fixed on the circle centre position of main body inner wall, and the other end is screwed onto on sealing cover; First cushion plate is in falling " V " type, arrange on the support columns; Described energy absorber comprises 2 piece of second cushion plate, and the second cushion plate symmetry is arranged on the inwall of main body lower end; The upper end of main body is provided with the soil stack access port be communicated with body lumen, and the lower end of main body is provided with the soil stack exit be communicated with body lumen, and sealing cover is screwed onto one of them side of main body.
Described first cushion plate outer surface is smooth surface, the internal surface of both sides is respectively equipped with a guiding rib, and supporting post is provided with corresponding guiding groove, and the cooperation by guiding rib and guiding groove makes the first cushion plate fixed installation on the support columns.
As preferably, above-mentioned guiding rib is T-shape, and guiding groove cross section corresponding on supporting post is also in the T-shape matched.
Described " V " type first cushion plate effectively stops that area is more than or equal to 3/5 of soil stack access port area, " V " type angle that falls is 60-72 °, and the first cushion plate base and the beeline of the second cushion plate are more than or equal to 3/4 of the soil stack internal diameter be connected with soil stack access port or exit; Beeline between 2 piece of second cushion plate is greater than 3/4 of above-mentioned soil stack internal diameter, but is less than the internal diameter of soil stack.
The front of the second cushion plate is smooth surface, and the back side is provided with 2 guiding ribs.
Described main body circular arc inwall is respectively equipped with a boss near the both sides of soil stack exit, each boss is provided with two boss guiding grooves, and the cooperation by the second cushion plate guiding rib and boss guiding groove makes the second cushion plate be fixedly mounted on main body inner wall boss.
As preferably, described second cushion plate guiding rib is T-shape, and boss guiding groove cross section is also in the T-shape matched.
Described first cushion plate and the second cushion plate all adopt soft rubber material, reduce the high-velocity flow of whereabouts to the impact failure of energy absorber.
Sealing cover is provided with internal thread, and main body side is provided with outside thread, and sealing cover is arranged in main body by internal thread and outside thread cooperation, and also overlapping at sealing cover and main body joint has rubber seal, for sealing, prevents from leaking.
Be provided with the through hole passed through for fixing bolt in the middle of described supporting post, the centre of sealing cover is also provided with the screw passed through for fixing bolt; Fixing bolt through pad, pad rubber washer, sealing cover screw, sealing gasket and supporting post through hole, is then passed from another side of main body, and is fixed by nut rubber washer and set screw nut successively.
The soil stack access port of main body upper end is for connecting soil stack, and joint is arranged with slip joint lid, sealing clamping ring and rubber seal from top to down successively.
When premises architectural drainage system energy absorber uses, the high-velocity flow flowed down from soil stack eminence is after being arranged on the first cushion plate shunting of body lumen, baffling, recoil, consume part kinetic energy, again respectively through 2 piece of second cushion plate baffling, bottom energy absorber, form lasting turbulent flow, continue to consume most of kinetic energy.High-velocity flow is after described energy absorber, and its kinetic energy significantly reduces and do not change flow, reaches excellent deceleration buffer and Quick drainage effect.
Sealing cover and main body adopt and are spirally connected, and when body lumen has foreign material, can open very easily and clear up, and the glue compared to existing technology connects, and clean inspection is more convenient; And use fixing bolt second consolidation, the connection of sealing cover and main body can be made more to seal and firmly.
In addition, described energy absorber is except the first cushion plate and the second cushion plate adopt soft rubber, and remaining part still adopts rigid polyvinyl chloride material, while guarantee energy absorber energy dissipating and noise-proofing effect, alleviates again the weight of energy absorber, reduces cost.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the building construction energy reducer for drainage system structural representation of the present embodiment;
Fig. 2 is the building construction energy reducer for drainage system longitdinal cross-section diagram of the present embodiment.
Label declaration:
Main body 1; Soil stack access port 11; Soil stack exit 12; Boss 13; Boss guiding groove 131;
Sealing cover 2; Screw 21; Rubber seal 22;
First cushion plate 3; Guiding rib 31;
Second cushion plate 4; Second cushion plate guiding rib 41;
Supporting post 5; Guiding groove 51; Through hole 52;
Fixing bolt 6; Pad 61; Pad rubber washer 62; Sealing gasket 63; Nut rubber washer 64; Set screw nut 65;
Slip joint lid 7; Sealing clamping ring 71; Rubber seal 72.
Embodiment
As depicted in figs. 1 and 2, a kind of building construction energy reducer for drainage system, the first cushion plate 3, second cushion plate 4 and supporting post 5 etc. that comprise main body 1, sealing cover 2 and be arranged in main body 1; Wherein, supporting post 5 one end is fixed on the circle centre position of main body 1 inwall, and the other end is screwed onto on sealing cover 2; First cushion plate 3 is in falling " V " type, be arranged on supporting post 5; Described energy absorber comprises 2 piece of second cushion plate 4, second cushion plate 4 symmetry and is arranged on the inwall of main body 1 lower end; The upper end of main body 1 is provided with the soil stack access port 11 be communicated with body lumen, and the lower end of main body 1 is provided with the soil stack exit 12 be communicated with body lumen, and sealing cover 2 is screwed onto one of them side of main body 1.
Described first cushion plate 3 outer surface is smooth surface, the internal surface of both sides is respectively equipped with a guiding rib 31, and supporting post 5 is provided with corresponding guiding groove 51, and the cooperation by guiding rib 31 and guiding groove 51 makes the first cushion plate 3 be fixedly mounted on supporting post 5.In the present embodiment, above-mentioned guiding rib 31 is T-shape, and guiding groove 51 cross section corresponding on supporting post 5 is T-shape.Guiding rib 31 and guiding groove 51 also can be other shapes, as long as the first cushion plate 3 firmly can be arranged on supporting post 5.
Described " V " type first cushion plate effectively stops area, namely the first cushion plate orthographic projection is to the part area of soil stack access port, be more than or equal to 3/5 of soil stack access port area, " V " type angle that falls is 60-72 °, and the first cushion plate base and the beeline of the second cushion plate are more than or equal to 3/4 of the soil stack internal diameter be connected with soil stack access port or exit; Beeline between 2 piece of second cushion plate is greater than 3/4 of above-mentioned soil stack internal diameter, but is less than the internal diameter of soil stack.
In the present embodiment, the front of the second cushion plate 4 is smooth surface, and the back side is provided with 2 T-shape guiding ribs.Described main body 1 circular arc inwall is respectively equipped with a boss 13 near the both sides of soil stack exit 12, and each boss 13 is provided with two boss guiding grooves 131, and boss guiding groove 131 cross section is also in the T-shape matched.Cooperation by the second cushion plate guiding rib 41 and boss guiding groove 131 makes the second cushion plate 4 be fixedly mounted on main body 1 inwall boss 13.Second cushion plate also can pass through the guiding rib of other shapes, or other means of fixation are fixed in main body as being spirally connected.
Described first cushion plate 3 and the second cushion plate 4 all adopt soft rubber material, can reduce the impact force of current to support 5.Also other similar flexible materials can be adopted.
Sealing cover 2 is provided with internal thread, and main body 1 side is provided with outside thread, and sealing cover 2 is coordinated by internal thread and outside thread to be installed on the body 1, also overlaps and has rubber seal, for sealing, prevent from leaking at sealing cover 2 and main body 1 joint.Sealing cover 2, except being connected with main body 1 with self screw thread, also carries out second consolidation connection by fixing bolt 6 and set screw nut 65, makes the connection of main body 1 and sealing cover 2 tightr, loosens after preventing sealing cover 2 from using for a long time.
Be provided with the through hole 52 passed through for fixing bolt 6 in the middle of described supporting post 5, the centre of sealing cover 2 is also provided with the screw 21 passed through for fixing bolt 6.Fixing bolt 6 through pad 61, pad rubber washer 62, sealing cover screw 21, sealing gasket 63 and supporting post through hole 52, is then passed from another side of main body 1, and is fixed by nut rubber washer 64 and set screw nut 65 successively.
In main body 1, soil stack access port 11 is respectively used to be connected soil stack with soil stack exit 12, and soil stack access port 11 and main body 1 joint are arranged with slip joint lid 7, sealing clamping ring 71 and rubber seal 72 from top to down successively.
Below for the energy absorber (subtracting energy device hereinafter referred to as No. 1) described in the present embodiment and traditional multiple 45o bend-head combination that has form the curved contrast experiment subtracting " a kind of architectural drainage system sinker " (the subtracting energy device hereinafter referred to as No. 3) described in energy device (subtracting energy device hereinafter referred to as No. 2) and Patent publication No CN101846225A and do of second word:
Experimental facilities: 1, portable speed-measuring instrument 2, conventional fire water;
Experimental situation: factory building exterior wall, temperature: 19 DEG C;
Experimental simulation principle: adopt high pressure fire fighting Fluid Dynamics current to fall from the soil stack of tall building, is subtracted can be fallen energy ratio by device by the measurement of portable speed-measuring instrument.
Table 1:3 group subtracts and can subtract energy contrast experiment data by device
As can be seen from above-mentioned table, the energy absorber described in the present embodiment subtracts compared with energy device with other two kinds, slow down and fall energy effect more obviously, and decelerating effect is more obvious when current are larger.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.