CN209725431U - A kind of multi-level throttle tube-in-tube structure with denoising structure - Google Patents

Abstract

The multi-level throttle tube-in-tube structure with denoising structure that the utility model discloses a kind of, including sleeve body, described sleeve body one end offers medium inlet, the medium inlet inner wall equidistant intervals have diaphragm, described diaphragm one end is connected with first segment chute, first through hole is distributed in first segment chute two sides internal symmetry, bending slow flow tube is fixed in the first through hole, described bending slow flow tube one end, which is corresponding with, washes away plate, a kind of multi-level throttle tube-in-tube structure with denoising structure of the utility model, by the way that fluid is linked at medium inlet, under the action of bending slow flow tube, the two sides of high-pressure fluid to first segment chute are evenly dispersed to come, the medium tentatively to throttle enters the second throttling channel by the second through-hole and passes through the first unhurried current spindle nose and the second unhurried current spindle nose, so that flow of media impact force weakens, set Cylinder body interior fills noise reduction sound-proof material, it is ensured that the medium of multi-level throttle will not generate obvious noise, and using effect is good.

Description

A kind of multi-level throttle tube-in-tube structure with denoising structure

Technical field

The utility model relates to a kind of tube-in-tube structure, in particular to a kind of multi-level throttle sleeve knot with denoising structure Structure belongs to regulating valve equipment technical field.

Background technique

The sleeve and flap of sleeve-type regulating valve are clearance fit, are provided with multiple throttling windows, the shape of window on sleeve Determine the discharge characteristic of regulating valve, the size of window influences the discharge coefficient of regulating valve.Valve seat is used from centering without spiral shell The snap-in structure of line, the conical seal surface on valve seat match to form cutting sealing pair with the conical seal surface on flap, guarantee Valve tightly turns off when flap is pressed on valve seat.The size of valve-seat diameter influences the discharge coefficient of regulating valve.It is parallel on flap In axially having symmetrical balance hole, make the chamber of flap upper and lower end face, medium acts on flap axial direction in such valve On power largely cancel out each other, the out-of-balance force that medium generates on valve rod is just very small.

Existing sleeve can generate biggish noise in the presence of high-pressure medium, the section in sleeve without any processing, So that the pressure that fluid generates is larger, it is be easy to cause pipe vibration and cavitation erosion, so that the using effect to sleeve generates shadow It rings, reduces its service life.Therefore we make improvement to this, propose a kind of multi-level throttle sleeve knot with denoising structure Structure.

Utility model content

The multi-level throttle tube-in-tube structure with denoising structure that the purpose of this utility model is to provide a kind of, it is above-mentioned to solve The conventional sleeve structureborne noise proposed in background technique is larger, and internal high pressure is unable to get the problem of being effectively reduced.

To achieve the above object, the utility model provides the following technical solutions: a kind of multi-level throttle with denoising structure Tube-in-tube structure, including sleeve body, described sleeve body one end offer medium inlet, and the medium inlet inner wall is equidistantly sowed discord It is separated with diaphragm, described diaphragm one end is connected with first segment chute, the distribution of first segment chute two sides internal symmetry There is first through hole, bending slow flow tube is fixed in the first through hole, described bending slow flow tube one end, which is corresponding with, washes away plate, institute It states to wash away on the inside of plate one end and is corresponding with the second through-hole, second through-hole and the second throttling channel are connected, second throttling channel bottom End is fixedly connected with the first unhurried current spindle nose, and the second unhurried current spindle nose is fixedly installed at the top of second throttling channel, and described second is slow Stream spindle nose and the first unhurried current spindle nose are connected by being responsible for first end with the second throttling channel, and branch is distributed in supervisor's head other end Pipe, described branch pipe one end are fixed with communicating pipe, and described communicating pipe one end is connected with media outlet.

As a kind of optimal technical scheme of the utility model, described wash away on the outside of plate is fitted with damping damping fin.

As a kind of optimal technical scheme of the utility model, the sleeve body inner wall and wash away between plate filled with drop It makes an uproar sound-proof material.

As a kind of optimal technical scheme of the utility model, supervisor's head and branch pipe are an integral molding structure.

As a kind of optimal technical scheme of the utility model, reinforcing rib is distributed on the outside of second throttling channel.

As a kind of optimal technical scheme of the utility model, pass through screw thread between bending slow flow tube and the first through hole Connection, and bending slow flow tube is hard aluminium alloy material.

Compared with prior art, the utility model has the beneficial effects that the utility model is a kind of with the more of denoising structure The advantages of grade throttle sleeve structure, has noise smaller, and internal high pressure obtains multi-level decomposition, specific in use, with tradition Throttle sleeve compare, the utility model by the way that fluid is linked at medium inlet, bending slow flow tube effect Under, the two sides of high-pressure fluid to first segment chute are evenly dispersed to come, and the medium tentatively to throttle enters the second section by the second through-hole Chute simultaneously passes through the first unhurried current spindle nose and the second unhurried current spindle nose, so that flow of media impact force weakens, sleeve body inside is filled Noise reduction sound-proof material, it is ensured that the medium of multi-level throttle will not generate obvious noise, and using effect is good.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the medium inlet schematic diagram of internal structure of the utility model；

In figure: 1, medium inlet；2, first segment chute；3, slow flow tube is bent；4, sleeve body；5, first through hole；6, it rushes Brush board；7, the second throttling channel；8, noise reduction sound-proof material；9, the second through-hole；10, the first unhurried current spindle nose；11, communicating pipe；12, it is responsible for Head；13, branch pipe；14, the second unhurried current spindle nose；15, media outlet；16, diaphragm；17, damping damping fin.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of multi-level throttle tube-in-tube structure with denoising structure, including set referring to FIG. 1-2, Cylinder main body 4, described 4 one end of sleeve body offer medium inlet 1, the 1 inner wall equidistant intervals of medium inlet have water conservancy diversion every Plate 16, described 16 one end of diaphragm are connected with first segment chute 2, and the 2 two sides internal symmetry of first segment chute is distributed with One through-hole 5 is fixed with bending slow flow tube 3 in the first through hole 5, and described 3 one end of bending slow flow tube, which is corresponding with, washes away plate 6, Described wash away on the inside of 6 one end of plate is corresponding with the second through-hole 9, and second through-hole 9 and the second throttling channel 7 are connected, second section 7 bottom end of chute is fixedly connected with the first unhurried current spindle nose 10, and the second unhurried current spindle nose is fixedly installed at the top of second throttling channel 7 14, the second unhurried current spindle nose 14 and the first unhurried current spindle nose 10 are connected by being responsible for 12 one end of head with the second throttling channel 7, the master Branch pipe 13 is distributed in 12 other end of tube head, and described 13 one end of branch pipe is fixed with communicating pipe 11, described 11 one end of communicating pipe and medium Outlet 15 is connected.

Preferably, described wash away on the outside of plate 6 is fitted with damping damping fin 17, reduces high-velocity fluid to 4 inner wall of sleeve body Wash away the vibration of generation.

Preferably, it 4 inner wall of sleeve body and washes away between plate 6 filled with noise reduction sound-proof material 8, reduces high-speed Medium stream The logical impact noise generated.

Preferably, supervisor's head 12 and branch pipe 13 are an integral molding structure, and are convenient for multi-level throttle noise reduction.

Preferably, reinforcing rib is distributed on the outside of second throttling channel 7, shock resistance is strong, stable structure.

Preferably, it is connected through a screw thread between the bending slow flow tube 3 and first through hole 5, and bending slow flow tube 3 is hard Aluminum alloy material effectively tentatively throttles to circulation medium, reduces surge.

When specifically used, a kind of multi-level throttle tube-in-tube structure with denoising structure of the utility model has noise smaller, Internal high pressure obtains the advantages of multi-level decomposition, by the way that fluid is linked at medium inlet 1, under the action of bending slow flow tube 3, The two sides of high-pressure fluid to first segment chute 2 are evenly dispersed to come, and the medium tentatively to throttle enters the second throttling by the second through-hole 9 Slot 7 simultaneously passes through the first unhurried current spindle nose 10 and the second unhurried current spindle nose 14, so that flow of media impact force weakens, final medium is by being connected to Media outlet 15 is imported at pipe 11, fills noise reduction sound-proof material 8 inside sleeve body 4, it is ensured that the medium of multi-level throttle will not produce Raw obvious noise, using effect is good, is worth being widely popularized.

In the description of the present invention, it should be understood that the orientation or positional relationship of instruction is based on shown in attached drawing Orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical new to this The limitation of type.

In the present invention unless specifically defined or limited otherwise, for example, it may be being fixedly connected, be also possible to It is detachably connected, or integral；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements, unless otherwise clear Restriction can understand above-mentioned term in the utility model as the case may be for the ordinary skill in the art In concrete meaning.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of multi-level throttle tube-in-tube structure with denoising structure, including sleeve body (4), which is characterized in that the sleeve Main body (4) one end offers medium inlet (1), and medium inlet (1) the inner wall equidistant intervals have diaphragm (16), described Diaphragm (16) one end is connected with first segment chute (2), and it is logical that first segment chute (2) two sides internal symmetry is distributed with first Hole (5), the first through hole (5) is interior to be fixed with bending slow flow tube (3), and described bending slow flow tube (3) one end, which is corresponding with, to be washed away Plate (6), described wash away on the inside of plate (6) one end are corresponding with the second through-hole (9), and second through-hole (9) connects with the second throttling channel (7) Logical, the second throttling channel (7) bottom end is fixedly connected with the first unhurried current spindle nose (10), fixes at the top of second throttling channel (7) It is provided with the second unhurried current spindle nose (14), second unhurried current spindle nose (14) and the first unhurried current spindle nose (10) pass through supervisor's head (12) one End is connected with the second throttling channel (7), and supervisor's head (12) other end is distributed with branch pipe (13), and described branch pipe (13) one end is fixed Have communicating pipe (11), described communicating pipe (11) one end is connected with media outlet (15).

2. a kind of multi-level throttle tube-in-tube structure with denoising structure according to claim 1, it is characterised in that: the punching Damping damping fin (17) are fitted on the outside of brush board (6).

3. a kind of multi-level throttle tube-in-tube structure with denoising structure according to claim 1, it is characterised in that: the set Cylinder main body (4) inner wall and wash away between plate (6) be filled with noise reduction sound-proof material (8).

4. a kind of multi-level throttle tube-in-tube structure with denoising structure according to claim 1, it is characterised in that: the master Tube head (12) and branch pipe (13) are an integral molding structure.

5. a kind of multi-level throttle tube-in-tube structure with denoising structure according to claim 1, it is characterised in that: described Reinforcing rib is distributed on the outside of two throttling channels (7).

6. a kind of multi-level throttle tube-in-tube structure with denoising structure according to claim 1, it is characterised in that: described curved It is connected through a screw thread between folding slow flow tube (3) and first through hole (5), and bending slow flow tube (3) is hard aluminium alloy material.